Personal care composition

Abstract

Described herein are personal care compositions comprising a liquid carrier, an alkyl glycerol ether, xanthan gum, glycerol and an ester of a C8-18 fatty acid, a polyol, and an alkali metal salt of a C14-22 fatty acid.

Description

[0001] Cross-references to related applications

[0002] This application claims the benefit of priority to U.S. Patent Application No. 63 / 493,404, filed March 31, 2023, entitled “Personal Care Compositions,” the contents of which are incorporated herein by reference in their entirety for all purposes. Background Technology

[0003] Many underarm products contain metal salts, such as aluminum salts, to provide odor protection and / or antiperspirant protection. However, consumer preference for products without metal salts has increased in recent years. People tend to choose deodorant compositions that do not contain metal salts. Therefore, there is a need for new deodorant formulations that provide protection against odor and sweat without such metal salts. Summary of the Invention

[0004] This invention relates to deodorant compositions comprising: a liquid carrier, alkyl glycerol ethers, xanthan gum, glycerol, and C. 8-18 Fatty acid esters, polyols, and C 14-22 Alkali metal salts of fatty acids.

[0005] Other embodiments of the present invention include deodorant compositions comprising: a liquid carrier, methylheptylglycerin, xanthan gum, glyceryl monolaurate, and a polyol, said polyol including diols, triols, and sodium stearate.

[0006] Other embodiments of the present invention include a deodorant composition comprising: a liquid carrier; a polyol; methylheptylglycerin, in an amount ranging from about 0.5 wt% to about 2.5 wt% based on the total weight of the deodorant composition; xanthan gum, in an amount ranging from about 0.1 wt% to about 0.6 wt% based on the total weight of the deodorant composition; sodium stearate, in an amount ranging from about 1 wt% to about 12 wt% based on the total weight of the deodorant composition; and glyceryl monolaurate, in an amount ranging from about 0.25 wt% to about 2.25 wt% based on the total weight of the deodorant composition.

[0007] Other embodiments of the present invention include a method for preventing odor, the method comprising applying one or more of the aforementioned deodorant compositions to a skin surface.

[0008] Other embodiments of the present invention include a method for manufacturing a deodorant composition, the method comprising: a) mixing a liquid carrier, methylheptylglycerin, xanthan gum, sodium stearate, one or more polyols, and glyceryl monolaurate to form a blend; b) adding a predetermined amount of the blend to a container.

[0009] Further areas of applicability of the present application will become apparent from the detailed description provided below. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the application, are intended for purposes of illustration only and are not intended to limit the scope of the application.

[0010] A list of non-limiting exemplary embodiments is provided below.

[0011] According to embodiment 1, there is provided a personal care composition comprising:

[0012] an optional liquid carrier;

[0013] an alkyl glyceryl ether;

[0014] xanthan gum;

[0015] an ester of glycerol and a C8-18 fatty acid;

[0016] a polyol, the polyol comprising glycerol; and

[0017] an alkali metal salt of a C14-22 fatty acid.

[0018] According to embodiment 2, there is provided the personal care composition according to embodiment 1, wherein the alkyl glyceryl ether comprises methyl heptyl glyceryl ether, and is present in an amount ranging from about 0.5 wt% to about 2.5 wt%, based on the total weight of the deodorant composition.

[0019] According to embodiment 3, there is provided the personal care composition according to any one of embodiments 1 to 2, wherein the xanthan gum is present in an amount ranging from about 0.1 wt% to about 0.6 wt%, based on the total weight of the deodorant composition.

[0020] According to embodiment 4, there is provided the personal care composition according to any one of embodiments 1 to 3, wherein the ester of glycerol and a C8-18 fatty acid is glyceryl monolaurate, and is present in an amount ranging from about 0.25 wt% to about 2.25 wt%, based on the total weight of the deodorant composition. 8-18

[0021] According to embodiment 5, there is provided the personal care composition according to any one of embodiments 1 to 4, wherein the polyol comprises a diol and a triol.

[0022] According to embodiment 6, there is provided the personal care composition according to embodiment 5, wherein the diol is selected from one or more of propylene glycol, butylene glycol, and combinations thereof, and is present in an amount ranging from about 40 wt% to about 66 wt%, based on the total weight of the deodorant composition.

[0023] ​According to embodiment 7, there is provided the personal care composition according to any one of embodiments 5 to 6, wherein the triol comprises glycerin, and is present in an amount ranging from about 1 wt% to about 20 wt%, based on the total weight of the deodorant composition.

[0024] According to embodiment 8, there is provided the personal care composition according to any one of embodiments 1 to 7, wherein the C 14-22 The alkali metal salt of a fatty acid comprises sodium stearate in an amount ranging from about 1 wt% to about 12 wt%.

[0025] According to embodiment 9, there is provided the personal care composition according to any one of embodiments 1 to 8, wherein the liquid carrier comprises water, and is present in an amount ranging from about 15 wt% to about 35 wt%, based on the total weight of the deodorant composition.

[0026] According to embodiment 10, there is provided the personal care composition according to any one of embodiments 1 to 9, wherein the deodorant composition is in a solid state at room temperature.

[0027] According to embodiment 11, there is provided a personal care composition comprising:

[0028] an optional liquid carrier;

[0029] methylheptyl glycerin;

[0030] xanthan gum;

[0031] glycerin monolaurate;

[0032] a polyol, the polyol comprising a diol and a triol; and

[0033] sodium stearate.

[0034] According to embodiment 12, there is provided the personal care composition according to embodiment 11, wherein the methylheptyl glycerin is present in an amount ranging from about 0.5 wt% to about 2.5 wt%, based on the total weight of the deodorant composition.

[0035] According to embodiment 13, there is provided the personal care composition according to any one of embodiments 11 to 12, wherein the xanthan gum is present in an amount ranging from about 0.1 wt% to about 0.6 wt%, based on the total weight of the deodorant composition.

[0036] According to embodiment 14, there is provided the personal care composition according to any one of embodiments 11 to 13, wherein the glycerin monolaurate is present in an amount ranging from about 0.25 wt% to about 2.25 wt%, based on the total weight of the deodorant composition.

[0037] According to embodiment 15, there is provided the personal care composition according to any one of embodiments 11 to 14, wherein the diol is present in an amount ranging from about 40 wt% to about 66 wt%, based on the total weight of the deodorant composition.

[0038] According to embodiment 16, there is provided the personal care composition according to embodiment 15, wherein the diol is selected from one or more of propylene glycol, butylene glycol, and combinations thereof.

[0039] According to embodiment 17, there is provided the personal care composition according to any one of embodiments 11 to 16, wherein the triol comprises glycerin in an amount ranging from about 1 wt% to about 20 wt%, based on the total weight of the deodorant composition.

[0040] According to embodiment 18, there is provided the personal care composition according to any one of embodiments 11 to 17, wherein the sodium stearate is present in an amount ranging from about 1 wt% to about 12 wt%, based on the total weight of the deodorant composition.

[0041] According to embodiment 19, there is provided the personal care composition according to any one of embodiments 11 to 18, wherein the liquid carrier comprises water, and the liquid carrier is present in an amount ranging from about 15 wt% to about 35 wt%, based on the total weight of the deodorant composition.

[0042] According to embodiment 20, there is provided the personal care composition according to any one of embodiments 11 to 18, wherein the deodorant composition is in a solid state at room temperature.

[0043] According to embodiment 21, there is provided a personal care composition, wherein the personal care composition is in the form of a deodorant composition, the personal care composition comprising:

[0044] a polyol (preferably, comprising glycerin);

[0045] methylheptyl glycerin in an amount ranging from about 0.5 wt% to about 2.5 wt%, based on the total weight of the deodorant composition;

[0046] xanthan gum in an amount ranging from about 0.1 wt% to about 0.6 wt%, based on the total weight of the deodorant composition;

[0047] sodium stearate in an amount ranging from about 1 wt% to about 12 wt%, based on the total weight of the deodorant composition; and

[0048] glycerol monolaurate in an amount ranging from about 0.25 wt% to about 2.25 wt%, based on the total weight of the deodorant composition.

[0049] According to embodiment 22, there is provided the personal care composition according to embodiment 21, wherein the polyol is selected from one or more of glycerol, propylene glycol, butylene glycol, and combinations thereof.

[0050] According to embodiment 23, there is provided the personal care composition according to embodiment 22, wherein the polyol is present in an amount ranging from about 51 wt% to about 81 wt%, based on the total weight of the deodorant composition.

[0051] According to embodiment 24, there is provided the personal care composition according to any one of embodiments 21 to 23, wherein the liquid carrier comprises water, and the liquid carrier is present in an amount ranging from about 15 wt% to about 35 wt%, based on the total weight of the deodorant composition.

[0052] According to embodiment 25, there is provided the personal care composition according to any one of embodiments 21 to 24, wherein the deodorant composition is in a solid state at room temperature.

[0053] According to embodiment 26, there is provided the personal care composition according to embodiment 25, wherein the deodorant composition in the solid state is formed into a predetermined shape.

[0054] According to embodiment 27, there is provided the personal care composition according to any preceding embodiment, wherein the personal care composition reduces sweat by at least 21% as measured 1 hour after application of the personal care composition.

[0055] According to embodiment 28, there is provided the personal care composition according to any preceding embodiment, wherein the personal care composition reduces sweat by at least 9% as measured 24 hours after application of the personal care composition.

[0056] According to embodiment 29, there is provided a method of reducing and / or preventing malodor, the method comprising applying one or more of the personal care compositions according to embodiments 1 to 28 to a skin surface.

[0057] According to embodiment 30, there is provided the method according to embodiment 29, wherein a deodorant is applied by rubbing the personal care composition onto the skin surface.

[0058] According to embodiment 31, there is provided the method according to embodiment 29 or embodiment 30, wherein the personal care is in a solid state when applied to the skin surface.

[0059] According to embodiment 32, there is provided the method according to any one of embodiments 29 to 31, wherein the personal care is selected from the group consisting of: stick deodorant, stick antiperspirant, roll-on deodorant, roll-on antiperspirant, emulsion, cream, and balm.

[0060] According to embodiment 33, there is provided a method of manufacturing a personal care composition, comprising:

[0061] a) mixing a liquid carrier, methylheptyl glycerin, xanthan gum, sodium stearate, and glycerol monolaurate to form a blend;

[0062] b) adding a predetermined amount of the blend to a container; and

[0063] c) cooling the blend in the container to room temperature to form a solid.

[0064] According to embodiment 34, there is provided the method according to embodiment 33, wherein the liquid carrier comprises water, and the liquid carrier is present in an amount ranging from about 15 wt% to about 35 wt%, based on the total weight of the blend.

[0065] According to embodiment 35, there is provided the method according to embodiment 33 or embodiment 34, wherein the methylheptyl glycerin is present in an amount ranging from about 0.5 wt% to about 2.5 wt%, based on the total weight of the blend.

[0066] According to embodiment 36, there is provided the method according to any one of embodiments 33 to 35, wherein the xanthan gum is present in an amount ranging from about 0.1 wt% to about 0.6 wt%, based on the total weight of the blend.

[0067] According to embodiment 37, there is provided the method according to any one of embodiments 33 to 36, wherein the sodium stearate is present in an amount ranging from about 1 wt% to about 12 wt%, based on the total weight of the blend.

[0068] According to embodiment 38, there is provided the method according to any one of embodiments 33 to 37, wherein the glycerol monolaurate is present in an amount ranging from about 0.25 wt% to about 2.25 wt%, based on the total weight of the blend.

[0069] According to embodiment 39, there is provided the method according to embodiment 38, wherein the glycol is present in an amount ranging from about 40 wt% to about 66 wt%, based on the total weight of the blend.

[0070] According to embodiment 40, there is provided the method according to any one of embodiments 33 to 39, wherein the mixing of step a) is performed at a temperature ranging from about 75°F to about 185°F.

[0071] According to embodiment 41, there is provided the method according to any one of embodiments 33 to 40, wherein step b) is performed at an elevated temperature, and the blend is in a liquid or semi-liquid state.

[0072] According to embodiment 42, there is provided the method according to embodiment 41, wherein the method further comprises step c), wherein the blend is cooled to room temperature to form a solid state. DETAILED DESCRIPTION

[0073] The following description of preferred embodiments is merely exemplary in nature and is in no way intended to limit the application, its application, or uses.

[0074] As used throughout, ranges are used as shorthand for describing each and every value and sub-range within the range. Any value within the range can be selected as the terminus of the range. In addition, all references cited herein are hereby incorporated by reference in their entirety. In the event of a conflict in terminology between the definitions in the present disclosure and the definitions in the cited references, the definitions in the present disclosure control.

[0075] Unless otherwise indicated, all percentages and amounts expressed herein and elsewhere in the specification should be understood and interpreted to be percents by weight. The amounts given are based on the active weight of the material.

[0076] The description of illustrative embodiments according to the principles of the application is intended to be read in connection with the accompanying drawings, which are to be considered part of the entire written description. Any reference to direction or orientation in the description of embodiments of the application disclosed herein is merely intended for clarity and, in no way, to limit the scope of the application as described.

[0077] Unless otherwise indicated, all percentages and amounts expressed herein and elsewhere in the specification should be understood and interpreted to be percents by weight. The amounts given are based on the active weight of the material. According to the present application, the term "about" means + / - 10% of the referenced value. According to the present application, the term "substantially free of" is less than about 0.1% by weight based on the sum of the referenced value.

[0078] As used herein, the use of a compound including several isomers or stereoisomers includes all isomeric forms of that compound. When referring to chemical structures and names, the symbols "C," "H," and "O" mean carbon, hydrogen, and oxygen, respectively. The symbols "-", "=" and "≡" mean single, double, and triple bonds, respectively. For purposes of readability, chemical functional groups are in their adjective form; for each adjective, the word "group" is assumed to be used. For example, the adjective "alkyl" without a noun following it should be read as "alkyl group."

[0079] Any member of a genus exemplified or defined in a species list can be mutually exclusive of any other member of the species list, or overlapping with any other member of the species list, or a subset of any other member of the species list, or identical to any other member of the species list, or nearly identical to any other member of the species list, or the same as any other member of the species list. Furthermore, unless explicitly stated, a species list defining or exemplifying a genus is open, and gives other species that can be as good or better than any other species listed to define or exemplify the genus, e.g., when reciting a Markush group.

[0080] All components and elements set forth in the disclosure affirmatively recited can be negatively excluded from the claims. In other words, the personal care compositions of the present disclosure can be free or substantially free of all components and elements affirmatively recited throughout the disclosure. In some cases, the personal care compositions of the present disclosure can be substantially free of incidental amounts of ingredients or compounds described herein. An incidental amount of an ingredient or compound is an amount of that ingredient or compound that is separately added to the personal care composition. For example, a personal care composition can be substantially free of an incidental amount of an ingredient or compound, although such ingredient or compound can be present as part of a raw material included as a blend of two or more compounds.

[0081] Some of the different categories of components identified can overlap. In such cases where overlap can exist and the personal care composition comprises two components (or the composition comprises more than two overlapping components), the overlapping compound does not represent more than one component. For example, caprylyl glycol can be referred to as both a humectant and a preservative. If a particular personal care composition comprises both a humectant and a preservative, caprylyl glycol would only function as a humectant or a preservative - not as both.

[0082] As used herein, the terms "composition" and "formulation" can be used interchangeably within the specification. As used herein, the term "antiperspirant" refers to a product that is applied topically to reduce the production of sweat (perspiration) at the site. As used herein, the term "reduce" in the context of "reducing perspiration" means to decrease or lessen the moisture, sweat, or perspiration of the area to which it is applied. As used herein, the term "deodorant" refers to a product that inhibits and / or reduces the growth of odor-causing bacteria that make perspiration odoriferous. As used herein, the term "antiperspirant / deodorant composition" refers to a composition that provides an antiperspirant effect and / or a deodorant effect.

[0083] As used herein, the term "free of aluminum-based antiperspirant active" means that the antiperspirant / deodorant compositions of the present disclosure do not include an aluminum-based antiperspirant active. For example, no aluminum-based antiperspirant active is added to the personal care compositions of the present invention to exhibit a certain personal care effect.

[0084] As used herein, the term "zirconium-free" or "free of zirconium-based antiperspirant active" means that the antiperspirant / deodorant compositions do not include any zirconium-based antiperspirant. Non-limiting examples of zirconium-based antiperspirant actives include octachlorohydroxyaluminizirconium, pentachlorohydroxyaluminizirconium, tetrachlorohydroxyaluminizirconium, trichlorohydroxyaluminizirconium, and aluminum-zirconium glycine complex (e.g., trichlorohydroxyaluminizirconium gly, pentachlorohydroxyaluminizirconium gly, tetrachlorohydroxyaluminizirconium gly, and octachlorohydroxyaluminizirconium gly). In some embodiments, the personal care compositions can be free of one or more of the foregoing examples of zirconium-based antiperspirant actives.

[0085] As used herein, the term "zirconium-free" or "free of zirconium-based antiperspirant active" means that the antiperspirant / deodorant compositions do not include any zirconium-based antiperspirant. Non-limiting examples of zirconium-based antiperspirant actives include octachlorohydroxyaluminizirconium, pentachlorohydroxyaluminizirconium, tetrachlorohydroxyaluminizirconium, trichlorohydroxyaluminizirconium, and aluminum-zirconium glycine complex (e.g., trichlorohydroxyaluminizirconium gly, pentachlorohydroxyaluminizirconium gly, tetrachlorohydroxyaluminizirconium gly, and octachlorohydroxyaluminizirconium gly). In some embodiments, the personal care compositions can be free of one or more of the foregoing examples of zirconium-based antiperspirant actives.

[0086] As used herein, the term "free of zinc-based antiperspirant active" means that the antiperspirant / deodorant compositions do not include a zinc-based antiperspirant active. No zinc-based antiperspirant active is added to the antiperspirant / deodorant compositions of the present invention to exhibit an antiperspirant / deodorant effect. Non-limiting examples of zinc-based antiperspirant actives can include one or more of zinc oxide, zinc hydroxide, zinc hydroxide ions with a counterion, and zinc ions with a counterion. In some embodiments, the personal care compositions can be free of one or more of the foregoing examples of zinc-based antiperspirant actives.

[0087] As used herein, the term "free of iron-based antiperspirant active" means that the antiperspirant / deodorant compositions do not include one or more of an iron-based antiperspirant active.

[0088] As used herein, the term "free of titanium-based antiperspirant active" means that the antiperspirant / deodorant composition does not include a titanium-based antiperspirant active. For example, the antiperspirant / deodorant composition can include trace amounts of a titanium-based antiperspirant active such as ammonium titanyl lactate, etc., be substantially free of a titanium-based antiperspirant active such as ammonium titanyl lactate, etc., or be free of a titanium-based antiperspirant active such as ammonium titanyl lactate, etc. In some embodiments, the personal care composition can be free of one or more of the foregoing examples of titanium-based antiperspirant actives.

[0089] As used herein, the term "free of magnesium-based antiperspirant active" means that the antiperspirant / deodorant composition does not include a magnesium-based antiperspirant active. Non-limiting examples of magnesium-based actives include, but are not limited to, magnesium chloride, magnesium bromide, magnesium fluoride, and organic salts such as carboxylic acids substituted with various alkyl chain lengths, magnesium oxide, and magnesium hydroxide. As used herein, the term "axillary" or "axillary region" refers to the armpit or underarm of the body. In some embodiments, the personal care composition can be free of one or more of the foregoing examples of magnesium-based antiperspirant actives.

[0090] The antiperspirant / deodorant composition can be substantially free or free of aluminum-based antiperspirant, magnesium-based antiperspirant active, titanium-based antiperspirant active, zirconium-based antiperspirant active, and zinc-based antiperspirant active. For example, the antiperspirant / deodorant composition can have about 3% or less by weight, about 2% or less by weight, about 1% or less by weight, about 0.5% or less by weight, about 0.1% or less by weight, about 0.05% or less by weight, or about 0.01% or less by weight, based on the total weight of the antiperspirant / deodorant composition, of aluminum-based antiperspirant, magnesium-based antiperspirant active, titanium-based antiperspirant active, zirconium-based antiperspirant active, and zinc-based antiperspirant active, individually or cumulatively. In some embodiments, the antiperspirant / deodorant composition has about 0% or 0% by weight, based on the total weight of the antiperspirant / deodorant composition, of aluminum-based antiperspirant, magnesium-based antiperspirant active, titanium-based antiperspirant active, zirconium-based antiperspirant active, and zinc-based antiperspirant active, individually or cumulatively.

[0091] Aspects of the invention relate to antiperspirant / deodorant compositions that provide reduction in sweat while being free of aluminum-based antiperspirant, and preferably, being free of magnesium-based antiperspirant active, titanium-based antiperspirant active, zirconium-based antiperspirant active, and zinc-based antiperspirant active. The inventors have discovered that certain embodiments of antiperspirant / deodorant compositions comprising specific combinations of ingredients in specific amounts and ratios provide about 5% or more, about 10% or more, about 15% or more, about 20% or more, about 25% or more, about 30% or more, about 35% or more, about 40% or more, or about 45% or more reduction in sweat while being free of aluminum-based antiperspirant, magnesium-based antiperspirant active, and zinc-based antiperspirant active.

[0092] The antiperspirant / deodorant compositions as disclosed herein can slow the process of sweating by reducing the amount of sweat secreted from eccrine and / or apocrine sweat glands. In certain embodiments, the antiperspirant / deodorant compositions provide about 20% or more, about 23% or more, about 26% or more, about 29% or more, about 32% or more, about 35% or more, about 36% or more, about 40% or more, about 44% or more, or about 48% or more reduction in sweat, preferably, within a 24 hour period after application. For example, the antiperspirant / deodorant compositions can provide about 20% to about 48%, about 20% to about 45%, about 20% to about 40%, about 20% to about 36%, about 20% to about 32%, about 20% to about 28%; about 24% to about 48%, about 24% to about 45%, about 24% to about 40%, about 24% to about 36%, about 24% to about 32%, about 24% to about 28%; about 28% to about 48%, about 28% to about 45%, about 28% to about 40%, about 28% to about 36%, about 28% to about 32%; about 32% to about 48%, about 32% to about 45%, about 32% to about 40%, about 32% to about 36%; about 36% to about 48%, about 36% to about 45%, about 36% to about 40%, or any range or sub-range thereof, reduction in sweat (e.g., resulting in reduction in sweat when applied to skin), preferably, within a 1 hour, 12 hour, 24 hour, or 48 hour period after application, for example, as compared to not utilizing the antiperspirant / deodorant compositions. In some embodiments, the antiperspirant / deodorant compositions described herein provide reduction in sweat according to any of the ranges and / or percentages listed in the foregoing, within about a 1 hour period, 2 hour period, 3 hour period, 4 hour period, 6 hour period, 8 hour period, 12 hour period, 18 hour period, 24 hour period, 36 hour period, or 48 hour period, for example, as compared to not utilizing the antiperspirant / deodorant compositions.

[0093] In some embodiments, the present application provides antiperspirant / deodorant compositions that inhibit and / or reduce the growth of malodor causing bacteria in the underarm. By reducing underarm perspiration, the antiperspirant and / or deodorant compositions will reduce the formation of malodor causing bacteria. According to at least one aspect, methods for reducing perspiration in the axillary region, for example, by applying an antiperspirant / deodorant composition to the axillary region, are provided. According to another aspect, methods of using an antiperspirant / deodorant composition according to the present application to reduce malodor caused by excess perspiration are provided.

[0094] The antiperspirant / deodorant compositions can be used in methods of reducing perspiration by applying the antiperspirant / deodorant composition to the skin. In certain embodiments, the application is to the axillary region. In other embodiments, the present application provides methods of reducing perspiration by about 10% to about 40%, or about 15% to about 20%, or about 25% to about 30%, or about 30% to about 35%, or about 35% to about 40% for a period of about 1 hour, 2 hours, 3 hours, 4 hours, 6 hours, 8 hours, 12 hours, 18 hours, 24 hours, 36 hours, or 48 hours, for example, as compared to not utilizing the antiperspirant / deodorant composition.

[0095] In some embodiments, the present application provides methods of reducing perspiration in a subject in need thereof, wherein the perspiration is reduced by at least 5%, at least 10%, at least 15%, at least 20%, at least 25%, at least 30%, at least 35%, at least 40%, or at least 45% for a period of about 1 hour, 2 hours, 3 hours, 4 hours, 6 hours, 8 hours, 12 hours, 18 hours, 24 hours, 36 hours, or 48 hours, for example, as compared to not utilizing the antiperspirant / deodorant composition.

[0096] Depending on the particular combination of components, the form of the hair care composition, and / or the use of the formulation (e.g., roll-on, stick, spray, cream, etc.), the formulation of the care composition for use in the antiperspirant / deodorant composition can include or exclude suitable components such as those listed below.

[0097] The present application relates to deodorant compositions. In some embodiments, the deodorant composition can be an underarm stick deodorant. In some embodiments, the deodorant composition can be an underarm roll-on deodorant. In some embodiments, the deodorant composition can be a spray or cream (e.g., an underarm spray or cream). The deodorant composition can include one or more all-natural compounds or naturally derived compounds.

[0098] The deodorant composition generally comprises one or more polyols, which can be selected from one or more humectants. The deodorant composition can comprise a polyol. In some embodiments, the polyol can include a diol. In some embodiments, the polyol can include a triol. In some embodiments, the polyol can include a diol and a triol.

[0099] The polyol can be present in an amount ranging from about 5 wt% to about 85 wt%, based on the total weight of the deodorant composition, including all wt% and subranges therebetween. In some embodiments, the polyol can be present in an amount ranging from about 10 wt% to about 60 wt%, based on the total weight of the deodorant composition, including all wt% and subranges therebetween. In some embodiments, the polyol can be present in an amount ranging from about 57 wt% to about 75 wt%, based on the total weight of the deodorant composition, including all wt% and subranges therebetween. In some embodiments, the polyol can be present in an amount ranging from about 60 wt% to about 72 wt%, based on the total weight of the deodorant composition, including all wt% and subranges therebetween. In some embodiments, the polyol can be present in an amount ranging from about 63 wt% to about 69 wt%, based on the total weight of the deodorant composition, including all wt% and subranges therebetween. In some embodiments, the polyol can be present in an amount ranging from about 65 wt% to about 67 wt%, based on the total weight of the deodorant composition, including all wt% and subranges therebetween.

[0100] The diol and the triol can be present in a weight ratio ranging from about 0.5: 1 to about 15: 1, including all ratios and subranges therebetween. In some embodiments, the diol and the triol can be present in a weight ratio ranging from about 1 : 1 to about 7: 1, including all ratios and subranges therebetween. In some embodiments, the diol and the triol can be present in a weight ratio ranging from about 1 : 1 to about 6: 1, including all ratios and subranges therebetween.

[0101] The diol can be a biobased diol. The diol can include a C3 to C 10 The diol. In some embodiments, the diol can be selected from one or more of propylene glycol, butylene glycol, pentylene glycol, combinations thereof.

[0102] The propylene glycol can include one or more of 1,2-propanediol (also known as propylene glycol) and 1,3-propanediol. The butylene glycol can include one or more of 1,2- butanediol, 1,3-butanediol (also known as butylene glycol), 2,3-butanediol, 1,4- butanediol. The pentylene glycol can include one or more of 1,2-pentanediol, 1,3- pentanediol, 2,3-pentanediol, 1,5-pentanediol.

[0103] The diol can be present in an amount ranging from about 5% to about 70% by weight, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the diol can be present in an amount ranging from about 10% to about 60% by weight, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the diol can be present in an amount ranging from about 50% to about 62% by weight, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the diol can be present in an amount ranging from about 52% to about 60% by weight, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the diol can be present in an amount ranging from about 54% to about 58% by weight, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the diol can be present in an amount ranging from about 56% to about 57% by weight, including all percentages and subranges therebetween, based on the total weight of the deodorant composition.

[0104] In some embodiments, the diol can include propylene glycol and can be present in an amount ranging from about 40% to about 66% by weight, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the diol can include propylene glycol and can be present in an amount ranging from about 48% to about 64% by weight, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the diol can include propylene glycol and can be present in an amount ranging from about 50% to about 62% by weight, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the diol can include propylene glycol and can be present in an amount ranging from about 52% to about 60% by weight, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the diol can include propylene glycol and can be present in an amount ranging from about 54% to about 58% by weight, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the diol can include propylene glycol and can be present in an amount ranging from about 54% to about 58%, or about 55%, about 56%, about 57% by weight, including all percentages and subranges therebetween, based on the total weight of the deodorant composition.

[0105] In some embodiments, the diol can include a blend of propylene glycol and butylene glycol, where propylene glycol can be present in an amount ranging from about 32 wt% to about 52 wt% and butylene glycol can be present in an amount ranging from about 4 wt% to about 24 wt%, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the diol can include a blend of propylene glycol and butylene glycol, where propylene glycol can be present in an amount ranging from about 34 wt% to about 50 wt% and butylene glycol can be present in an amount ranging from about 6 wt% to about 22 wt%, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the diol can include a blend of propylene glycol and butylene glycol, where propylene glycol can be present in an amount ranging from about 36 wt% to about 48 wt% and butylene glycol can be present in an amount ranging from about 8 wt% to about 20 wt%, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the diol can include a blend of propylene glycol and butylene glycol, where propylene glycol can be present in an amount ranging from about 38 wt% to about 46 wt% and butylene glycol can be present in an amount ranging from about 10 wt% to about 18 wt%, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the diol can include a blend of propylene glycol and butylene glycol, where propylene glycol can be present in an amount ranging from about 40 wt% to about 44 wt% and butylene glycol can be present in an amount ranging from about 12 wt% to about 16 wt%, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the diol can include a blend of propylene glycol and butylene glycol, where propylene glycol can be present in an amount ranging from about 42 wt% to about 43 wt% and butylene glycol can be present in an amount ranging from about 14 wt% to about 15 wt%, including all percentages and subranges therebetween, based on the total weight of the deodorant composition.

[0106] The triol can be selected from glycerol. The triol can be present in an amount ranging from about 1 wt% to about 20 wt%, including all percents and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the triol can be present in an amount ranging from about 2 wt% to about 19 wt%, including all percents and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the triol can be present in an amount ranging from about 3 wt% to about 18 wt%, including all percents and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the triol can be present in an amount ranging from about 4 wt% to about 17 wt%, including all percents and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the triol can be present in an amount ranging from about 5 wt% to about 16 wt%, including all percents and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the triol can be present in an amount ranging from about 6 wt% to about 15 wt%, including all percents and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the triol can be present in an amount ranging from about 7 wt% to about 14 wt%, including all percents and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the triol can be present in an amount ranging from about 8 wt% to about 13 wt%, including all percents and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the triol can be present in an amount ranging from about 9 wt% to about 12 wt%, including all percents and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the triol can be present in an amount ranging from about 10 wt% to about 11 wt%, including all percents and subranges therebetween, based on the total weight of the deodorant composition.

[0107] Without being bound by any particular theory, it has been unexpectedly discovered that a combination of an amount of glycerin with an amount of alkyl glycerin ether and a gum can provide enhanced sweat reduction. For example, in certain embodiments, the deodorant composition can be in the form of a stick, and the amount of glycerin can be from about 1 wt% to about 20 wt%, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the glycerin can be present in an amount ranging from about 2 wt% to about 19 wt%, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the glycerin can be present in an amount ranging from about 3 wt% to about 18 wt%, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the glycerin can be present in an amount ranging from about 4 wt% to about 17 wt%, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the glycerin can be present in an amount ranging from about 5 wt% to about 16 wt%, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the glycerin can be present in an amount ranging from about 6 wt% to about 15 wt%, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the glycerin can be present in an amount ranging from about 7 wt% to about 14 wt%, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the glycerin can be present in an amount ranging from about 8 wt% to about 13 wt%, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the glycerin can be present in an amount ranging from about 9 wt% to about 12 wt%, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the glycerin can be present in an amount ranging from about 10 wt% to about 11 wt%, including all percentages and subranges therebetween, based on the total weight of the deodorant composition.

[0108] The deodorant composition can include a humectant or moisturizer. Generally, a moisturizer can help to bind water in the skin and keep it there for a longer period of time. A moisturizer can attract and trap water. In some embodiments, the polyol and / or moisturizer is selected from glycerin (e.g., vegetable refined glycerin), polyols, low molecular weight polyethylene glycol (PEG), and polyoxyethylene. Examples of polyols include, but are not limited to, sorbitol (e.g., non-crystalline sorbitol), xylitol, propylene glycol, dipropylene glycol, polypropylene glycol (having three or more propylene monomer units), ethylene glycol, diethylene glycol, hexylene glycol, butylene glycol, and combinations thereof. In some embodiments, the polyol and / or moisturizer is selected from glycerin (e.g., vegetable glycerin), propylene glycol, butylene glycol, polyethylene glycol, 1,2-pentanediol, and / or combinations thereof.

[0109] In some cases, high molecular weight PEG can be suitable as a polyol and / or humectant, including those having an average molecular weight of from about 200,000 [Da] to about 7,000,000 [Da], such as from about 500,000 [Da] to about 5,000,000 [Da] or from about 1,000,000 [Da] to about 2,500,000 [Da].

[0110] The polyol and / or humectant can be selected from the group consisting of glycerin, propylene glycol, butylene glycol, and 1,3-propanediol, polyglutamic acid, sugar isomer, and combinations thereof. In some embodiments, the hygroscopic agent or humectant is vegetable refined glycerin. In some embodiments, the hygroscopic agent or humectant is polyethylene glycol 600. In some embodiments, the hygroscopic agent or humectant is a combination of polyethylene glycol 600 and vegetable glycerin. Without being limited by any particular theory, in some embodiments, the antiperspirant / deodorant composition reduces the formation of malodor causing bacteria by reducing moisture through moisture retention.

[0111] In some embodiments, the deodorant composition can include from about 5% to about 70% by weight of the deodorant composition of a humectant or a moisturizer, including all weight % and subranges therebetween. For example, the amount of humectant or hygroscopic agent present in the antiperspirant / deodorant composition can be from about 5% to about 30%, from about 5% to about 25%, from about 5% to about 22%, from about 5% to about 20%, from about 5% to about 18%, from about 5% to about 16%; from about 8% to about 30%, from about 8% to about 25%, from about 8% to about 22%, from about 8% to about 20%, from about 8% to about 18%, from about 8% to about 16%; from about 10% to about 30%, from about 10% to about 25%, from about 10% to about 22%, from about 10% to about 20%, from about 10% to about 18%, from about 10% to about 16%; from about 12% to about 30%, from about 12% to about 25%, from about 12% to about 22%, from about 12% to about 20%, from about 12% to about 18%, from about 12% to about 16%; from about 14% to about 30%, from about 14% to about 25%, from about 14% to about 22%, from about 14% to about 20%, from about 14% to about 18%, from about 14% to about 16%, including ranges and subranges therebetween, by weight of the total deodorant composition.

[0112] In some embodiments, the deodorant composition of the present application comprises a humectant or moisturizer at about 10% to about 20% by weight of the deodorant composition, including all percentages and subranges therebetween. In some embodiments, the antiperspirant / deodorant composition of the present application comprises a humectant or moisturizer at about 15% to about 18% by weight of the antiperspirant / deodorant composition, including all percentages and subranges therebetween. In some embodiments, the antiperspirant / deodorant composition of the present application comprises a humectant or moisturizer at about 15% by weight of the deodorant composition. In some embodiments, the antiperspirant / deodorant composition of the present application comprises a humectant or moisturizer at about 10% by weight of the deodorant composition.

[0113] The deodorant composition can also comprise a fatty acid salt. The fatty acid salt can be selected from the group consisting of C 14-22 Alkali metal salts, alkaline earth metal salts, and amine salts of fatty acids.

[0114] In some embodiments, the fatty acid salt can be formed from an alkali metal. The alkali metal can be sodium. In some embodiments, the C 14-22 The fatty acid salt can be selected from the group consisting of myristate salts, palmitate salts, stearate salts, behenate salts, oleate salts, linoleate salts, and linolenate salts, and mixtures thereof.

[0115] In some embodiments, the C 14-22 The fatty acid salt can be selected from the group consisting of sodium stearate, potassium stearate, magnesium stearate, sodium oleate, sodium palmitate, sodium behenate, diethylamine stearate, triethylamine stearate, and triethylamine oleate, and mixtures thereof. In some embodiments, the fatty acid salt can be sodium stearate.

[0116] In some embodiments, the deodorant composition can be substantially free of a hyaluronic acid salt. In some embodiments, the deodorant composition can be substantially free of sodium hyaluronate.

[0117] The C 14-22 The fatty acid salt can be present in an amount ranging from about 1% to about 12% by weight, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. The fatty acid salt can be present in the deodorant composition as a thickening agent (also known as a gelling agent or structurant). The fatty acid salt can be present when the deodorant composition is a stick deodorant, thereby imparting a solid state to the deodorant composition. In some embodiments, the fatty acid salt can be sodium stearate and can be present in an amount ranging from about 1% to about 12% by weight, including all percentages and subranges therebetween, based on the total weight of the deodorant composition.

[0118] In some embodiments, the C 14-22The fatty acid salt may be present in an amount ranging from about 2% by weight to about 11% by weight, including all percentages and subranges therebetween. In some embodiments, the fatty acid salt may be sodium stearate, and may be present in an amount ranging from about 2% by weight to about 11% by weight, based on the total weight of the deodorant composition, including all percentages and subranges therebetween.

[0119] In some embodiments, C is based on the total weight of the deodorant composition. 14-22 The fatty acid salt may be present in an amount ranging from about 3% by weight to about 10% by weight, including all percentages and subranges therein. In some embodiments, the fatty acid salt may be sodium stearate, and may be present in an amount ranging from about 3% by weight to about 10% by weight, including all percentages and subranges therein, based on the total weight of the deodorant composition.

[0120] In some embodiments, C is based on the total weight of the deodorant composition. 14-22 The fatty acid salt may be present in an amount ranging from about 4% by weight to about 9% by weight, including all percentages and subranges therebetween. In some embodiments, the fatty acid salt may be sodium stearate, and may be present in an amount ranging from about 4% by weight to about 9% by weight, including all percentages and subranges therebetween, based on the total weight of the deodorant composition.

[0121] In some embodiments, C is based on the total weight of the deodorant composition. 14-22 The fatty acid salt may be present in an amount ranging from about 5% by weight to about 8% by weight, including all percentages and subranges therebetween. In some embodiments, the fatty acid salt may be sodium stearate, and may be present in an amount ranging from about 5% by weight to about 8% by weight, based on the total weight of the deodorant composition, including all percentages and subranges therebetween.

[0122] In some embodiments, C is based on the total weight of the deodorant composition. 14-22 The fatty acid salt may be present in an amount ranging from about 6% to about 7% by weight, including all percentages and subranges therebetween. In some embodiments, the fatty acid salt may be sodium stearate, and may be present in an amount ranging from about 6% to about 7% by weight, including all percentages and subranges therebetween, based on the total weight of the deodorant composition.

[0123] Deodorant compositions may contain glycerin and ingredients selected from C 8-18 Fatty acid esters. In some embodiments, C 8-18 The fatty acid may be selected from caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid, and linolenic acid, and mixtures thereof. In one embodiment, the fatty acid selected for the glyceride may be lauric acid, producing glyceryl monolaurate.

[0124] glycerin and C 8-18 The ester of a fatty acid can be present in an amount ranging from about 0.25 wt% to about 2.25 wt%, including all percentages and subranges therebetween. In some embodiments, glycerin monolaurate can be present in an amount ranging from about 0.25 wt% to about 2.25 wt%, based on the total weight of the deodorant composition, including all percentages and subranges therebetween.

[0125] In some embodiments, glycerin and C 8-18 The ester of a fatty acid can be present in an amount ranging from about 0.5 wt% to about 2.0 wt%, including all percentages and subranges therebetween. In some embodiments, glycerin monolaurate can be present in an amount ranging from about 0.5 wt% to about 2.0 wt%, based on the total weight of the deodorant composition, including all percentages and subranges therebetween.

[0126] In some embodiments, glycerin and C 8-18 The ester of a fatty acid can be present in an amount ranging from about 0.75 wt% to about 1.75 wt%, including all percentages and subranges therebetween. In some embodiments, glycerin monolaurate can be present in an amount ranging from about 0.75 wt% to about 1.75 wt%, based on the total weight of the deodorant composition, including all percentages and subranges therebetween.

[0127] In some embodiments, glycerin and C 8-18 The ester of a fatty acid can be present in an amount ranging from about 1.0 wt% to about 1.5 wt%, including all percentages and subranges therebetween. In some embodiments, glycerin monolaurate can be present in an amount ranging from about 1.0 wt% to about 1.5 wt%, based on the total weight of the deodorant composition, including all percentages and subranges therebetween.

[0128] In some embodiments, glycerin and C 8-18 The ester of a fatty acid can be present in an amount of about 1.25 wt%. In some embodiments, glycerin monolaurate can be present in an amount of about 1.25 wt%, based on the total weight of the deodorant composition.

[0129] The deodorant composition can include a liquid carrier. The liquid carrier can include one or more of a solvent, a diluent, a polyol, a humectant, a glycerin ester, or combinations thereof. The liquid carrier can include one or more of water, an alcohol (e.g., ethanol, isopropyl alcohol, or mixtures thereof), and mixtures thereof. In at least one embodiment, the carrier includes water.

[0130] The amount of liquid carrier (e.g., water) present in the personal care formulation can vary, for example, between about 5% to about 90% by weight, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. The liquid carrier content can be selected to produce a stable deodorant composition to reach 100% by weight, based on the total weight of the deodorant composition, after all materials, including any optional materials, are added to the composition in their desired weight percentages.

[0131] In some embodiments, the liquid carrier (e.g., water) can be present in an amount ranging from about 15% to about 35% by weight, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the water can be present in an amount ranging from about 15% to about 35% by weight, including all percentages and subranges therebetween, based on the total weight of the deodorant composition.

[0132] In some embodiments, the liquid carrier can be present in an amount ranging from about 18% to about 32% by weight, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the water can be present in an amount ranging from about 18% to about 32% by weight, including all percentages and subranges therebetween, based on the total weight of the deodorant composition.

[0133] In some embodiments, the liquid carrier can be present in an amount ranging from about 21% to about 29% by weight, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the water can be present in an amount ranging from about 21% to about 29% by weight, including all percentages and subranges therebetween, based on the total weight of the deodorant composition.

[0134] In some embodiments, the liquid carrier can be present in an amount ranging from about 24% to about 26% by weight, including all percentages and subranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the water can be present in an amount ranging from about 24% to about 26% by weight, including all percentages and subranges therebetween, based on the total weight of the deodorant composition.

[0135] In some embodiments, the liquid carrier can be present in an amount of about 25% by weight, based on the total weight of the deodorant composition. In some embodiments, the water can be present in an amount of about 25% by weight, based on the total weight of the deodorant composition.

[0136] The deodorant composition can also include a thickening agent. The thickening agent can be selected from the group consisting of polysaccharides; carboxylic acid polymers; cross-linked polyacrylate polymers; polyacrylamide polymers; gums; and combinations of two or more thereof. Examples of polysaccharides include cellulose, carboxymethylhydroxyethyl cellulose, cellulose acetate propionate carboxylic acid, hydroxyethyl cellulose, hydroxyethyl ethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, methyl hydroxyethyl cellulose, microcrystalline cellulose, sodium cellulose sulfate, and mixtures thereof. In some embodiments, the deodorant composition of the present application includes two or more thickening agents, such as those selected from hydroxypropyl methyl cellulose and cross-linked homopolymers of acrylic acid (e.g., Carbopol® Ultrez 30). In some embodiments, the deodorant composition includes two, three, four, or five thickening agents, or any range or sub-range thereof. The thickening agent can be selected from the group consisting of hydroxypropyl methyl cellulose, polyethylene glycol, and combinations thereof.

[0137] Non-limiting examples of carboxylic acid polymers include cross-linked carboxylic acid polymers comprising one or more monomers derived from acrylic acid, substituted acrylic acid, and salts and esters of these acrylic and substituted acrylic acids such as carbomers. Non-limiting examples of these gelling agents gums include acacia, agar, algin, alginic acid, ammonium alginate, amylopectin, calcium alginate, calcium carrageenan, carnitine, carrageenan, dextrin, gelatin, gellan gum, guar gum, guar hydroxypropyltrimonium chloride, hectorite, hyaluronic acid, hydrated silica, hydroxypropyl chitosan, hydroxypropyl guar gum, karaya gum, kelp, locust bean gum, natto gum, potassium alginate, potassium carrageenan, propylene glycol alginate, sclerotium gum, sodium carboxymethyl dextran, sodium carrageenan, tragacanth gum, xanthan gum, and mixtures thereof.

[0138] In certain instances, the deodorant composition can be formulated to include a thickening agent selected from the group consisting of thickening polymers such as polyvinyl alcohol, sodium polyacrylate, sodium polymethacrylate, glyceryl polyacrylate, carboxyvinyl polymer, polyacrylamide, polyvinyl pyrrolidone, polyvinyl methy l ether, polyvinyl sulfone, maleic acid copolymer, polyethylene oxide, polydiallylamine, polyethyleneimine, water-soluble cellulose derivatives (e.g., carboxymethyl cellulose, methyl cellulose, methylhydroxypropyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, sodium cellulose sulfate salt) and / or starch derivatives (e.g., starch oxide, dialdehyde starch, dextrin, ghatti gum, acetyl starch, starch phosphate, carboxymethyl starch, hydroxyethyl starch, hydroxypropyl starch). In some embodiments, the thickening agent is selected from the group consisting of hydroxypropyl methyl cellulose, polyethylene glycol (PEG), polyacrylic acid (sold under the name Carbopol), cross-linked homopolymers of acrylic acid (sold under the name Carbopol® Ultrez 30 polymer), and C 10-30Acrylates crosspolymer of alkyl acrylate (sold under the name Carbopol® Ultrez 20 polymer).

[0139] The deodorant composition of the present application comprises from about 1 wt% to about 10 wt% of a thickening agent, based on the total weight of the deodorant composition. For example, the antiperspirant / deodorant composition can comprise one or more thickening agents in an amount of from about 0.5 wt% to about 10 wt%, from about 0.5 wt% to about 8 wt%, from about 0.5 wt% to about 6 wt%, from about 0.5 wt% to about 4 wt%, from about 0.5 wt% to about 2 wt%, from about 0.5 wt% to about 1 wt%; from about 1 wt% to about 10 wt%, from about 1 wt% to about 8 wt%, from about 1 wt% to about 6 wt%, from about 1 wt% to about 4 wt%, from about 1 wt% to about 2 wt%; from about 2 wt% to about 10 wt%, from about 2 wt% to about 8 wt%, from about 2 wt% to about 6 wt%, from about 2 wt% to about 4 wt%; from about 4 wt% to about 10 wt%, from about 4 wt% to about 8 wt%, from about 4 wt% to about 6 wt%; from about 6 wt% to about 10 wt%, from about 6 wt% to about 8 wt%; from about 8 wt% to 10 wt%, or any range or sub-range therein, based on the total weight of the deodorant composition.

[0140] The thickening agent can comprise a gum. The gum can include xanthan gum. The gum can be present in an amount ranging from about 0.1 wt% to about 0.6 wt%, including all percentages and sub-ranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the gum can be xanthan gum and be present in an amount ranging from about 0.1 wt% to about 0.6 wt%, including all percentages and sub-ranges therebetween, based on the total weight of the deodorant composition.

[0141] In some embodiments, the gum can be present in an amount ranging from about 0.2 wt% to about 0.4 wt%, including all percentages and sub-ranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the gum can be xanthan gum and be present in an amount ranging from about 0.2 wt% to about 0.4 wt%, including all percentages and sub-ranges therebetween, based on the total weight of the deodorant composition.

[0142] In some embodiments, the gum can be present in an amount ranging from about 0.25 wt% to about 0.35 wt%, including all percentages and sub-ranges therebetween, based on the total weight of the deodorant composition. In some embodiments, the gum can be xanthan gum and be present in an amount ranging from about 0.25 wt% to about 0.35 wt%, including all percentages and sub-ranges therebetween, based on the total weight of the deodorant composition.

[0143] In some embodiments, the gum can be present in an amount of about 0.3% by weight, based on the total weight of the deodorant. In some embodiments, the gum can be xanthan gum and is present in an amount of about 0.3% by weight, based on the total weight of the deodorant composition.

[0144] The deodorant composition can also include an alkyl glyceryl ether. The alkyl glyceryl ether can include one or more of 2-ethylhexyl glycerol, isodecyl glyceryl ether, and isostearyl glyceryl ether, and methyl heptyl glycerin. In some embodiments, the alkyl glyceryl ether is methyl heptyl glycerin.

[0145] The alkyl glyceryl ether can be present in an amount ranging from about 0.5% to about 2.5% by weight, based on the total weight of the deodorant composition, including all percentages and subranges therebetween. In some embodiments, the alkyl glyceryl ether can be methyl heptyl glycerin and is present in an amount ranging from about 0.5% to about 2.5% by weight, based on the total weight of the deodorant composition, including all percentages and subranges therebetween.

[0146] In some embodiments, the alkyl glyceryl ether can be present in an amount ranging from about 1.0% to about 2.0% by weight, based on the total weight of the deodorant composition, including all percentages and subranges therebetween. In some embodiments, the alkyl glyceryl ether can be methyl heptyl glycerin and is present in an amount ranging from about 1.0% to about 2.0% by weight, based on the total weight of the deodorant composition, including all percentages and subranges therebetween.

[0147] In some embodiments, the alkyl glyceryl ether can be present in an amount of about 1.5% by weight, based on the total weight of the deodorant. In some embodiments, the alkyl glyceryl ether can be methyl heptyl glycerin and is present in an amount of about 1.5% by weight, based on the total weight of the deodorant composition, including all percentages and subranges therebetween.

[0148] The alkyl glyceryl ether and the gum can be present in a weight ratio ranging from about 1 : 1 to about 7: 1, including all ratios and subranges therebetween. In some embodiments, the alkyl glyceryl ether and the gum can be present in a weight ratio ranging from about 3: 1 to about 6: 1, including all ratios and subranges therebetween. In some embodiments, the alkyl glyceryl ether and the gum can be present in a weight ratio of about 5: 1.

[0149] In certain preferred embodiments, the deodorant composition comprises alkyl glyceryl ether, glycerin, and gum in combination in certain amounts and ratios. For example, it has been surprisingly found that certain embodiments of deodorant compositions comprising particular thickening agents and alkyl glyceryl ether can provide unexpected improvements in malodor reduction after application to a user's skin. Additionally and / or alternatively, it has been unexpectedly found that a combination of certain amounts of glycerin with certain amounts of alkyl glyceryl ether and gum can provide enhanced sweat reduction. For example, it has been found that stick deodorants comprising certain amounts of glycerin in combination with particular alkyl glyceryl ethers, as discussed in greater detail herein, exhibit unexpected improvements in sweat reduction and / or malodor reduction after application to a user's skin. In at least one preferred embodiment, deodorant compositions of the present application comprising glycerin, xanthan gum, and methylheptyl glyceryl in certain amounts and ratios exhibit unexpected improvements in sweat reduction malodor reduction after application to a user's skin. For example, it has been found that stick deodorants comprising a blend of xanthan gum and methylheptyl glyceryl exhibit unexpected improvements in malodor reduction after application to a user's skin. In some embodiments, the xanthan gum and methylheptyl glyceryl are blended together prior to being combined with other ingredients of the deodorant composition.

[0150] The deodorant composition can also comprise an additive. In one non-limiting example, the additive can be selected from one or more of a soothing agent, a fragrance, an antioxidant, and a coloring agent. Non-limiting examples of fragrances include lemon grass oil, apricot fragrance, fir oil, bright lavender oil, and lavender oil. The deodorant compositions of the present application comprise from about 0.01 wt% to about 10 wt% of a fragrance, relative to the total weight of the deodorant composition. The deodorant compositions of the present application comprise from about 0.1 wt% to about 2 wt% of a fragrance, based on the total weight of the deodorant composition. The deodorant compositions of the present application comprise from about 0.5 wt% to 1.1 wt% of a fragrance, based on the total weight of the antiperspirant / deodorant composition.

[0151] Non-limiting examples of soothing agents include aloe vera, herbal extracts, and witch hazel water. Non-limiting examples of antioxidants are, for example, one or more of tocopherols and derivatives thereof, butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT), erythorbic acid, propyl gallate, sodium erythorbate, tertiary butylhydroquinone (TBHQ), rosemary extract, and more preferably ascorbic acid and salts thereof.

[0152] The deodorant composition can comprise one or more of an alpha hydroxy acid, a beta hydroxy acid, a polyhydroxy acid, or combinations thereof.

[0153] In one non-limiting embodiment, the deodorant composition can include one or more alpha hydroxy acids, such as those selected from C3to C7alpha-hydroxy acids or C4to C6alpha-hydroxy acids. In some embodiments, the personal care formulation includes a salt of an alpha-hydroxy acid. The salt of the alpha-hydroxy acid is preferably a sodium or potassium salt. In at least one embodiment, the salt is a sodium salt (i.e., the cation associated with the salt is sodium).

[0154] Non-limiting examples of alpha hydroxy acids include, but are not limited to, mandelic acid, glycolic acid, citric acid, lactic acid, malic acid, tartaric acid, phytic acid, hydroxyl octanoic acid, hydroxyl decanoic acid, glutaric acid, gluconic acid, or combinations of two or more thereof. In some embodiments, the alpha hydroxy acid is selected from mandelic acid, glycolic acid, citric acid, lactic acid, malic acid, tartaric acid, phytic acid, hydroxyl octanoic acid, hydroxyl decanoic acid, and combinations thereof. In further embodiments, the alpha hydroxy acid is citric acid, mandelic acid, glycolic acid, lactic acid, or combinations of two or more thereof. In certain instances, the alpha-hydroxy acid is selected from malic acid, tartaric acid, alpha-hydroxy glutaric acid, gluconic acid, salts thereof, and combinations of two or more thereof. In yet other instances, the alpha-hydroxy acid or salt thereof is selected from lactic acid, malic acid, and D-gluconic acid sodium. In some embodiments, the alpha hydroxy acid is lactic acid. In some embodiments, the alpha hydroxy acid is lactic acid. The antiperspirant / deodorant compositions of the present application include from about 0.05 wt% to about 2 wt% of the alpha hydroxy acid, based on the total weight of the antiperspirant / deodorant composition.

[0155] The amount of alpha hydroxy acid in the antiperspirant composition can be from about 0.05 wt% to about 2 wt%, from about 0.05 wt% to about 1.8 wt%, from about 0.05 wt% to about 1.6 wt%, from about 0.05 wt% to about 1.4 wt%, from about 0.05 wt% to about 1.2 wt%, from about 0.05 wt% to about 1 wt%, from about 0.05 wt% to about 0.8 wt%, from about 0.05 wt% to about 0.6 wt%, from about 0.05 wt% to about 0.4 wt%, from about 0.05 wt% to about 0.2 wt%, from about 0.05 wt% to about 0.1 wt%; from about 0.1 wt% to about 2 wt%, from about 0.1 wt% to about 1.8 wt%, from about 0.1 wt% to about 1.6 wt%, from about 0.1 wt% to about 1.4 wt%, from about 0.1 wt% to about 1.2 wt%, from about 0.1 wt% to about 1 wt%, from about 0.1 wt% to about 0.8 wt%, from about 0.1 wt% to about 0.6 wt%, from about 0.1 wt% to about 0.4 wt%; from about 0.3 wt% to about 2 wt%, from about 0.3 wt% to about 1.8 wt%, from about 0.3 wt% to about 1.6 wt%, from about 0.3 wt% to about 1.4 wt%, from about 0.3 wt% to about 1.2 wt%, from about 0.3 wt% to about 1 wt%, from about 0.3 wt% to about 0.8 wt%; from about 0.6 wt% to about 2 wt%, from about 0.6 wt% to about 1.8 wt%, from about 0.6 wt% to about 1.6 wt%, from about 0.6 wt% to about 1.4 wt%, from about 0.6 wt% to about 1.2 wt%, from about 0.6 wt% to about 1 wt%; from about 0.9 wt% to about 2 wt%, from about 0.9 wt% to about 1.8 wt%, from about 0.9 wt% to about 1.6 wt%, from about 0.9 wt% to about 1.4 wt%; from about 1.2 wt% to about 2 wt%, from about 1.2 wt% to about 1.8 wt%, from about 1.2 wt% to about 1.6 wt%; from about 1.5 wt% to about 2 wt%, from about 1.5 wt% to about 1.8 wt%, or any range or sub-range therein. The antiperspirant composition of the present application comprises from about 0.1 wt% to about 0.15 wt%, from about 0.15 wt% to about 1 wt%, or from about 1 wt% to about 2 wt% alpha hydroxy acid based on the total weight of the antiperspirant composition. The antiperspirant composition of the present application comprises about 0.15 wt% alpha hydroxy acid based on the total weight of the antiperspirant composition.

[0156] Non-limiting examples of beta hydroxy acids include salicylic acid, propionic acid, beta-hydroxybutyric acid, beta-hydroxy beta-methylbutyric acid, carnitine, and combinations of two or more thereof. The beta hydroxy acid can in some cases be selected from salicylic acid, esters of salicylic acid, sodium salicylate, beta hydroxybutyric acid, anisic acid, troxac acid, beta hydroxy acids obtained from white willow bark extract and / or wintergreen leaves, and combinations of two or more thereof. In some embodiments, the beta hydroxy acid comprises salicylic acid, sodium salicylate, beta hydroxy acids of willow bark extract, or combinations thereof. In some embodiments, the beta hydroxy acid is salicylic acid.

[0157] Non-limiting examples of polyhydroxy acids can include, but are not limited to, gluconolactone, gluconic acid, galactose, lactobionic acid, or combinations thereof. In some embodiments, the polyhydroxy acid is gluconolactone, lactobionic acid, or combinations thereof. For example, the polyhydroxy acid can be gluconic acid delta lactone.

[0158] The amount of the polyhydroxy acid in the deodorant composition can be from about 0.05 wt% to about 2 wt%, from about 0.05 wt% to about 1.8 wt%, from about 0.05 wt% to about 1.6 wt%, from about 0.05 wt% to about 1.4 wt%, from about 0.05 wt% to about 1.2 wt%, from about 0.05 wt% to about 1 wt%, from about 0.05 wt% to about 0.8 wt%, from about 0.05 wt% to about 0.6 wt%, from about 0.05 wt% to about 0.4 wt%, from about 0.05 wt% to about 0.2 wt%, from about 0.05 wt% to about 0.1 wt%; from about 0.1 wt% to about 2 wt%, from about 0.1 wt% to about 1.8 wt%, from about 0.1 wt% to about 1.6 wt%, from about 0.1 wt% to about 1.4 wt%, from about 0.1 wt% to about 1.2 wt%, from about 0.1 wt% to about 1 wt%, from about 0.1 wt% to about 0.8 wt%, from about 0.1 wt% to about 0.6 wt%, from about 0.1 wt% to about 0.4 wt%; from about 0.3 wt% to about 2 wt%, from about 0.3 wt% to about 1.8 wt%, from about 0.3 wt% to about 1.6 wt%, from about 0.3 wt% to about 1.4 wt%, from about 0.3 wt% to about 1.2 wt%, from about 0.3 wt% to about 1 wt%, from about 0.3 wt% to about 0.8 wt%; from about 0.6 wt% to about 2 wt%, from about 0.6 wt% to about 1.8 wt%, from about 0.6 wt% to about 1.6 wt%, from about 0.6 wt% to about 1.4 wt%, from about 0.6 wt% to about 1.2 wt%, from about 0.6 wt% to about 1 wt%; from about 0.9 wt% to about 2 wt%, from about 0.9 wt% to about 1.8 wt%, from about 0.9 wt% to about 1.6 wt%, from about 0.9 wt% to about 1.4 wt%; from about 1.2 wt% to about 2 wt%, from about 1.2 wt% to about 1.8 wt%, from about 1.2 wt% to about 1.6 wt%; from about 1.5 wt% to about 2 wt%, from about 1.5 wt% to about 1.8 wt%, or any range or sub-range therein.

[0159] In some embodiments, the deodorant composition of the present application comprises an antifoaming agent or a preservative. The deodorant composition can comprise a preservative selected from the group consisting of octoxinol, phenoxyethanol, butylated hydroxytoluene (BHT), ethylenediaminetetraacetic acid (EDTA), ethylhexylglycerin, citric acid, benzoic acid, and combinations thereof. In some embodiments, the antifoaming agent or preservative is octoxinol. Octoxinol can also be referred to as 1,2-octanediol.

[0160] In some embodiments, the deodorant composition of the present application comprises an antifoaming agent or a preservative. The deodorant composition can comprise a preservative selected from the group consisting of octoxinol, phenoxyethanol, butylated hydroxytoluene (BHT), ethylenediaminetetraacetic acid (EDTA), ethylhexylglycerin, citric acid, benzoic acid, and combinations thereof. In some embodiments, the antifoaming agent or preservative is octoxinol. Octoxinol can also be referred to as 1,2-octanediol.

[0161] In some embodiments, the antiperspirant / deodorant composition comprises optional ingredients such as a fragrance, a surfactant, a plant-based oil, an antioxidant, an antibacterial agent, a deodorant, a skin soothing agent, a vitamin, a pH adjusting agent, a polymer, or a combination thereof.

[0162] In some embodiments, the deodorant composition of the present application comprises a surfactant. In some embodiments, the deodorant composition of the present application comprises a surfactant selected from nonionic surfactants, anionic surfactants, cationic surfactants, and amphoteric / zwitterionic surfactants. Examples of anionic surfactants include, but are not limited to, ammonium lauryl sulfate; ammonium lauryl ether sulfate; sodium lauryl sulfate; sodium lauryl ether sulfate; or a combination of two or more thereof. For example, the anionic surfactant can be selected from the group consisting of ammonium lauryl sulfate, ammonium lauryl ether sulfate, and a combination of two or more thereof.

[0163] The amount of anionic surfactant in the deodorant composition can be from about 0.5 wt% to about 10 wt%, based on the total weight of the personal care composition. In some cases, the deodorant composition comprises an anionic surfactant in an amount of from about 0.5 wt% to about 10 wt%, from about 0.5 wt% to about 8 wt%, from about 0.5 wt% to about 6 wt%, from about 0.5 wt% to about 4 wt%, from about 0.5 wt% to about 2 wt%, from about 0.5 wt% to about 1 wt%; from about 1 wt% to about 10 wt%, from about 1 wt% to about 8 wt%, from about 1 wt% to about 6 wt%, from about 1 wt% to about 4 wt%, from about 1 wt% to about 2 wt%; from about 2 wt% to about 10 wt%, from about 2 wt% to about 8 wt%, from about 2 wt% to about 6 wt%, from about 2 wt% to about 4 wt%; from about 4 wt% to about 10 wt%, from about 4 wt% to about 8 wt%, from about 4 wt% to about 6 wt%; from about 6 wt% to about 10 wt%, from about 6 wt% to about 8 wt%; from about 8 wt% to 10 wt%, or any range or sub-range thereof, based on the total weight of the deodorant composition.

[0164] The amphoteric surfactant in the antiperspirant / deodorant composition can be selected from betaines, alkylsulfo-betaines, alkyl amphoacetates, alkyl amphopropionates, salts thereof, and a combination of two or more thereof. Preferably, the amphoteric surfactant comprises a betaine surfactant. Non-limiting examples of betaine surfactants include cocamidopropyl betaine, cocodimethyl carboxymethyl betaine, lauryl dimethyl carboxymethyl betaine, lauryl dimethyl carboxyethyl betaine, cetyl dimethyl-carboxymethyl betaine, lauryl-bis-(2-hydroxyethyl)-carboxymethyl betaine, oleyl-dimethyl gamma carboxypropyl betaine, and lauryl-bis-(2-hydroxypropyl)-carboxyethyl-betaine, or a combination of two or more thereof.

[0165] The amount of amphoteric surfactant in the deodorant composition can range from about 0.5 wt% to about 10 wt%, based on the total weight of the personal care composition. In some cases, the antiperspirant / deodorant composition includes the amphoteric surfactant in an amount ranging from about 0.5 wt% to about 10 wt%, about 0.5 wt% to about 8 wt%, about 0.5 wt% to about 6 wt%, about 0.5 wt% to about 4 wt%, about 0.5 wt% to about 2 wt%, about 0.5 wt% to about 1 wt%; about 1 wt% to about 10 wt%, about 1 wt% to about 8 wt%, about 1 wt% to about 6 wt%, about 1 wt% to about 4 wt%, about 1 wt% to about 2 wt%; about 2 wt% to about 10 wt%, about 2 wt% to about 8 wt%, about 2 wt% to about 6 wt%, about 2 wt% to about 4 wt%; about 4 wt% to about 10 wt%, about 4 wt% to about 8 wt%, about 4 wt% to about 6 wt%; about 6 wt% to about 10 wt%, about 6 wt% to about 8 wt%; about 8 wt% to 10 wt%, or any range or sub-range thereof, based on the total weight of the deodorant composition.

[0166] In some embodiments, the surfactant is a nonionic surfactant. In some embodiments, the nonionic surfactant includes, but is not limited to, a secondary alcohol ethoxylate, a polyoxyethylene octadecyl ether, a polyoxyethylene ether, a mixture of high molecular weight saturated fatty alcohols (predominantly cetyl and stearyl alcohol). The antiperspirant / deodorant composition can include a nonionic surfactant blend including two or more fatty alcohol ethoxylates each having a polyethylene oxide chain length of at least 2. Preferred fatty alcohol ethoxylates generally have a fatty alcohol chain length of C 12 to C 24 , an unsaturation of 0 to 2, and a polyethylene oxide chain length of 2 to 150 ethylene oxide units. For example, the fatty alcohol ethoxylate can have the general formula: CH3— (CH2) x — CH2— O— (CH2— CH2— O) y H—, where X = 10 to 20, and Y = 2 to 150. In some cases, the blend of fatty alcohol ethoxylates includes at least one fatty alcohol ethoxylate having a long polyethylene oxide chain length and at least one fatty alcohol ethoxylate having a short polyethylene oxide chain length. Suitable long chain length fatty alcohol ethoxylates have a polyethylene oxide chain length greater than 20, preferably 21 to 150, more preferably 21 to 100. For example, the fatty alcohol ethoxylate can be a polyoxyethylene octadecyl ether having the structure according to the chemical formula: CH3— (CH2) 16 — CH2— (O— CH2— CH2) n — OH, where n has an average value of 2 to 20, respectively.

[0167] Preferred long chain fatty alcohol ethoxylates include steareth-100 (100 indicates the length of the polyethylene oxide chain) and steareth 21. Other long chain fatty alcohol ethoxylates can be used, such as cetyl alcohol ethoxylate-100, oleyl alcohol ethoxylate-100, myristyl alcohol ethoxylate-100, and behenyl alcohol ethoxylate-100. Preferred HLB ranges for these surfactants are from 15 to 8. Suitable short chain length fatty alcohol ethoxylates have a polyethylene oxide chain length of less than or equal to 20, preferably from 2 to 20. Suitable shorter chain length fatty alcohol ethoxylates include, for example, steareth-2, steareth-10, cetyl alcohol ethoxylate-20, stearyl alcohol ethoxylate-20, myristyl alcohol ethoxylate-20, oleyl alcohol ethoxylate-20, and behenyl alcohol ethoxylate-20. Preferred HLB ranges for these surfactants are from 4 to 16.

[0168] The nonionic surfactant of the deodorant composition can be selected from polyoxyethylene ethers such as polyoxyethylene octadecyl ether compounds. The polyoxyethylene ethers can comprise a mixture of high molecular mass saturated fatty alcohols (such as cetyl and stearyl alcohol) and ethylene oxide. The polyoxyethylene ethers can be selected from ceteareth-2, ceteareth-3, ceteareth-4, ceteareth-5, ceteareth-6, ceteareth-7, ceteareth-8, ceteareth-9, ceteareth-10, ceteareth-11, ceteareth-12, and combinations of two or more thereof. Examples of polyoxyethylene octadecyl ether compounds include steareth-2, steareth-4, steareth-6, steareth-7, steareth-21, steareth-10, steareth-11, steareth-13, steareth-15, steareth-20, or combinations of two or more thereof. Certain secondary alcohol ethoxylates are available from Dow Chemical Company under the trade name Tergitol®. TM are available from Dow Chemical Company under the trade name Tergitol®.

[0169] The amount of nonionic surfactant (e.g., polyoxyethylene ether and / or polyoxyethylene octadecyl ether) in the antiperspirant / deodorant composition can be from about 0.5 wt% to about 10 wt%, based on the total weight of the deodorant composition. In some cases, the deodorant composition comprises nonionic surfactant (e.g., polyoxyethylene ether and / or polyoxyethylene octadecyl ether) in an amount of from about 0.5 wt% to about 10 wt%, from about 0.5 wt% to about 8 wt%, from about 0.5 wt% to about 6 wt%, from about 0.5 wt% to about 4 wt%, from about 0.5 wt% to about 2 wt%, from about 0.5 wt% to about 1 wt%; from about 1 wt% to about 10 wt%, from about 1 wt% to about 8 wt%, from about 1 wt% to about 6 wt%, from about 1 wt% to about 4 wt%, from about 1 wt% to about 2 wt%; from about 2 wt% to about 10 wt%, from about 2 wt% to about 8 wt%, from about 2 wt% to about 6 wt%, from about 2 wt% to about 4 wt%; from about 4 wt% to about 10 wt%, from about 4 wt% to about 8 wt%, from about 4 wt% to about 6 wt%; from about 6 wt% to about 10 wt%, from about 6 wt% to about 8 wt%; from about 8 wt% to 10 wt%, or any range or sub-range thereof, based on the total weight of the deodorant composition. In some cases, the deodorant composition can comprise from about 0.1 wt% to about 5 wt% surfactant, based on the total weight of the deodorant composition. The deodorant composition of the present application comprises from about 1 wt% to about 3 wt% surfactant, based on the total weight of the deodorant composition. The deodorant composition of the present application comprises about 2 wt% surfactant, based on the total weight of the antiperspirant / deodorant composition.

[0170] The deodorant composition of the present application can comprise Tergitol® in an amount of from about 2 wt% to about 5 wt%, based on the total weight of the deodorant composition. The deodorant composition of the present application comprises Tergitol® in an amount of about 2 wt%, based on the total weight of the deodorant composition. The antiperspirant / deodorant composition of the present application comprises Tergitol® in an amount of about 5 wt%, based on the total weight of the antiperspirant / deodorant composition.

[0171] In some embodiments, the deodorant compositions of the present application comprise an antioxidant. The deodorant compositions of the present application comprise from about 1 wt% to about 5 wt% of an antioxidant, based on the total weight of the deodorant composition. For example, the amount of antioxidant present in the deodorant composition can be from about 1 wt% to about 5 wt%, from about 1 wt% to about 4 wt%, from about 1 wt% to about 3 wt%, from about 1 wt% to about 2 wt%; from about 2 wt% to about 5 wt%, from about 2 wt% to about 4 wt%, from about 2 wt% to about 3 wt%; from about 3 wt% to about 5 wt%, from about 3 wt% to about 4 wt%; from about 4 wt% to about 5 wt%, or any range or sub-range thereof, based on the total weight of the deodorant composition. In some embodiments, the deodorant compositions of the present application comprise an antioxidant selected from witch hazel, butylated hydroxytoluene, pentaerythrityl tetra-di-t-butyl hydroxyhydrocinnamate, or combinations thereof. Pentaerythrityl tetra-di-t-butyl hydroxyhydrocinnamate is commercially available under the name Tinogard TT® from Ciba / BASF. In some embodiments, the deodorant compositions of the present application comprise about 2 wt% of witch hazel, relative to the total weight of the composition. TM In some embodiments, the deodorant compositions of the present application comprise from about 0.1 wt% to about 5 wt% of a humectant, based on the total weight of the deodorant composition. For example, the amount of humectant present in the deodorant composition can be from about 0.1 wt% to about 5 wt%, from about 0.1 wt% to about 4 wt%, from about 0.1 wt% to about 3 wt%, from about 0.1 wt% to about 2 wt%; from about 0.1 wt% to about 1 wt%, from about 1 wt% to about 5 wt%, from about 1 wt% to about 4 wt%, from about 1 wt% to about 3 wt%, from about 1 wt% to about 2 wt%; from about 2 wt% to about 5 wt%, from about 2 wt% to about 4 wt%, from about 2 wt% to about 3 wt%; from about 3 wt% to about 5 wt%, from about 3 wt% to about 4 wt%; from about 4 wt% to about 5 wt%, or any range or sub-range thereof, based on the total weight of the deodorant composition.

[0172] The pH of the antiperspirant / deodorant composition can range from 4 to 11, or from 7.5 to 10.5, or from 8 to 10, or from 8.5 to 9.5, or from 9 to 9.5, or from 9 to 10.

[0173] The deodorant composition can be in a solid state at room temperature (i.e., from about 20°C to about 22°C). The term solid state can refer to a deodorant composition that can maintain a predetermined shape with a self-supporting structure without the aid of a container. In the solid state, the deodorant composition can be used in a stick-type deodorant (as compared to a liquid walk-away bead-type deodorant).

[0174] The stick-type deodorant can be applied to the skin of a user in a sliding manner (as compared to a rolling manner). During the sliding application, a portion of the deodorant composition is deposited onto the skin of the user and remains on the skin of the user for a period of time to provide odor protection to that portion of the skin. During the sliding application, the deodorant composition can be in a solid state at room temperature.

[0175] The deodorant compositions of the present application can be manufactured by mixing the aforementioned components together to form a blend. The blend can be heated to an elevated temperature above room temperature. In one non-limiting embodiment, the elevated temperature can range from about 75°F to about 185°F, including all temperatures and sub-ranges therebetween. In one non-limiting embodiment, the elevated temperature can be such that the blend is in a liquid or semi-liquid state to help ensure uniform distribution of the components throughout the blend. The term "liquid" or "semi-solid" state can refer to a composition that is capable of flowing and is unable to maintain a self-supporting structure and is unable to maintain a predetermined shape without the aid of a container.

[0176] A predetermined amount of the blend can then be deposited into an empty deodorant container, whereby the heated blend can then be allowed to cool to at least room temperature, thereby solidifying the blend into a solid state.

[0177] In one non-limiting embodiment, the blend can be formed by mixing together a liquid carrier, a polyol, an alkyl glyceryl ether, xanthan gum, glycerin, and C 8-18 an ester of a fatty acid, and C 14-22 an alkali metal salt of a fatty acid. The blending can also include mixing in an additive.

[0178] Examples

[0179] The following experiments tested the effect of the presence of methylheptyl glycerin ("MHG") and xanthan gum ("XG") on deodorant efficacy. The formulations for each example are set forth below in Table 1, with each value representing a weight percent (wt%).

[0180] Example 1

[0181] Experiments were conducted to test the effect of deodorant formulations using the present invention on malodor reduction over time, with the formulations set forth below in Table 1.

[0182]

[0183] Each of Comparative Example 1 (Comp. Ex. 1), Comparative Example 2 (Comp. Ex. 2), Example 1 (Ex. 1), and Example 2 (Ex. 2) was then subjected to a malodor test to measure the deodorant efficacy of each formulation. A clinical malodor test was conducted on male participants aged 18 to 55 years, who were subjected to a "sniff evaluation" of the malodor of the underarm area by trained judges using an odor intensity scale of 0 to 10 (0 = no malodor, 5 = moderate malodor, 10 = very strong malodor). Participants with a malodor score of 5 or higher at baseline (when no deodorant formulation was used) were eligible to participate in the test. After washing the underarm area and applying the test product, the malodor was judged after 12 hour, 24 hour, and 48 hour periods.

[0184] The test results are set forth below in Table 2.

[0185]

[0186] As shown by the data described in Table 2 (above), it was unexpectedly observed that both exemplary compositions of the present application (Ex. 1 and Ex. 2) exhibited unexpected improvements in malodor reduction for each recorded time period, with extremely significant malodor reduction over the span of 48 hours. Specifically, the exemplary compositions of the present application (Ex. 1 and Ex. 2) not only exhibited unexpectedly large reductions in malodor protection over the initial 12 hours, but the deodorant compositions continued to outperform the comparative compositions over the subsequent 36 hour period (i.e., up to 48 hours).

[0187] Example 2

[0188] Male subjects between the ages of 18 and 65 years (1 / 2 with shaved axillae, 1 / 2 unshaven) were reported to the test site after a 21 -day washout period requiring all antiperspirant use to be discontinued, to obtain consent and to be screened. Seventy-two (72) male subjects who met the study criteria were enrolled and participated in baseline sweat collection during the day. Sixty-four (64) male subjects who each collected at least 100 mg of sweat per axilla were allowed to continue and were assigned a final number in order of most sweator to least sweator.

[0189] Subjects assigned a final number participated in supervised washout and test product application. These subjects returned on Days 2 through 8 for axillary assessments, supervised washout, and test product application. On Day 8, subjects also participated in sweat collection 1 hour after the 8thapplication. On Day 9, subjects reported for axillary assessments and sweat collection (24 hours after the 8thapplication). On Day 10, subjects reported for axillary assessments and sweat collection (48 hours after the 8thapplication). Sixty-one (61) subjects completed the study. Two (2) subjects dropped out of the study.

[0190] Subjects were induced to sweat by having them sit outdoors under ambient conditions during morning hours for 4 hours of sweat collection. This method of sweat collection is allowed according to the OTC Antiperspirant Drug Product Effectiveness Test Guidance (June, 2003.1).

[0191] Data were analyzed according to the FDA’s OTC Antiperspirant Drug Product Effectiveness Test Guidance. The ratio method was used to determine the % sweat reduction for the exemplary composition of the present application containing 10% glycerin (Ex. 3) relative to untreated axillae. The formulation for Ex. 3 is described in Table 3 (below).

[0192]

[0193] Wilcoxon signed rank test was used to determine the level of significance at p < 0.05 for 20% sweat reduction (Z < 0.8) and 30% sweat reduction (Z < 0.7). It was also used to determine the general efficacy requirement at 48 hours (Z < 1.0) only.

[0194] Based on the results of the Wilcoxon signed rank test, the exemplary composition of the present application (Ex. 3) was significantly effective in reducing sweat at 1 hour after the 8th application when tested against both the Z < 0.8 assumption (20% sweat reduction) and the Z < 0.7 assumption (30% sweat reduction). In addition, Ex. 3 was significantly effective in reducing sweat at 24 hours only against the Z < 0.8 assumption (20% sweat reduction). The mean percent sweat reduction, 95% confidence interval, and level of significance derived from the non-distributed signed rank test are presented in Table 4 (below).

[0195]

[0196] As shown by the data in Table 3 (above), the exemplary composition provided a 49.16% sweat reduction at 1 hour, a 30.97% sweat reduction at 24 hours, and a 14.20% sweat reduction at 48 hours.

[0197] Example 3

[0198] After a 21 -day washout period requiring the discontinuation of all axillary antiperspirants, subjects, aged 18 to 65 years (half male, half female), reported to the test facility to obtain consent and to be screened. Sixty (60) subjects who met the study criteria were enrolled. After meeting the baseline acceptance criteria, subjects were assigned to a randomization.

[0199] On Day 1, subjects participated in supervised washing with a non-antibacterial soap and application of the exemplary composition of the present application (Ex. 4). The formulation of Ex. 4 is described in Table 5 (below).

[0200]

[0201] Subjects returned on Days 2 through 8 for axillary assessments, supervised washing, and application of Ex. 4. On Day 8, subjects also participated in sweat collection at 1 hour after the 8th application. On Day 9, subjects reported for axillary assessments and sweat collection (24 hours after the 8th application). Fifty-one (51) subjects, of which 23 were male and 28 were female, completed the study. Nine (9) subjects withdrew or were withdrawn from the study. Subjects were induced to sweat by having them sit in a room maintained at 100 ± 2 F and 30% to 40% relative humidity (RH).

[0202] Data was analyzed according to the FDA OTC Antiperspirant Drug Product Effectiveness Test Guidelines. The ratio method was used to determine the % sweat reduction of the exemplary composition of the present application (Ex. 4) versus untreated underarms. The Wilcoxon Signed Rank Test was used to determine the level of significance at the p < 0.05 level of significance for a 20% sweat reduction (Z < 0.8). It was also used to determine the general efficacy requirement (Z < 1.0).

[0203] Based on the results of the Wilcoxon Signed Rank Test, the exemplary composition of the present application (Ex. 4) was significantly more effective at reducing sweat at 1 hour after the 8th application when both were tested against the Z < 0.8 assumption (20% sweat reduction). The exemplary composition of the present application (Ex. 4) was significantly more effective at reducing sweat at 24 hours against the Z < 1.0 assumption (general efficacy). The mean % sweat reduction, 95% confidence interval, level of significance derived from the non-distributed signed rank test are presented in Table 6 (below).

[0204]

[0205] Specifically, the exemplary composition of the present application showed a 22.05% sweat reduction at 1 hour and a 9.89% sweat reduction at 24 hours.

[0206] Example 4

[0207] A 3-week consumer in-home evaluation was conducted to assess a non-limiting embodiment deodorant composition according to an aspect of the present application (Ex. 5). The formulation of Example Deodorant Composition 5 is shown in Table 7. Specifically, 320 volunteers between the ages of 18 and 65 were instructed to apply the deodorant composition to their axillary region for a 3-week period in the same manner that they normally use a deodorant and / or antiperspirant composition.

[0208]

[0209] After the 3-week period, each volunteer completed a survey questionnaire which was professionally evaluated to determine the results of the consumer in-home evaluation. Specifically, 88% of the volunteers indicated that Example Composition 5 provided protection against wetness, while 11% of the volunteers indicated that Example Composition 5 did not provide protection against wetness, and 1% of the volunteers were unsure if Example Composition 5 provided protection against wetness.

[0210] Example 5

[0211] A special study was conducted to evaluate a non-limiting example deodorant composition (Ex. 6) according to one aspect of the invention. The formulation of example deodorant composition 6 shown in Table 8 is the same as that of example deodorant composition 5, except that example deodorant composition 6 does not contain fragrance.

[0212]

[0213] Specifically, fifty-four (54) volunteers were administered doses ranging from 0.45 g / axillary to 0.55 g / axillary. On day 1, volunteers participated in supervised washing with non-antibacterial soap and the application of Deodorant Composition 6 of Example 1. Volunteers returned from day 2 to day 8 for axillary assessment, supervised washing, and application of Deodorant Composition 6 of Example 1.

[0214] On day 8, volunteers participated in sweat collection 1 hour after the 8th application. On day 9, volunteers reported axillary assessment and sweat collection (24 hours after the 8th application). Sweating was induced in subjects by having them sit in a room maintained at 100±2 F and 30% to 40% relative humidity (RH).

[0215] Data were analyzed according to the FDA's guidelines for testing the efficacy of OTC antiperspirant products. A ratio method was used to determine the percentage reduction in sweat volume of the deodorant composition of Example 6 relative to untreated underarms. Wilcoxon signed-rank tests were used to determine the significance levels for a 20% reduction in sweat volume (Z<0.8) at a p<0.05 level, a 30% reduction in sweat volume (Z<0.7) at a p<0.05 level, and the general efficacy requirement (Z<1.0) at a p<0.05 level. The results are summarized in Table 9.

[0216]

[0217] While the invention has been described with reference to specific examples, including the currently preferred mode for carrying out the invention, those skilled in the art will understand that many variations and arrangements of the above compositions, products, and / or systems exist. It should be understood that other embodiments can be utilized, and structural and functional modifications can be made, without departing from the scope of the invention. Therefore, the spirit and scope of the invention should be interpreted broadly as set forth in the appended claims.

Claims

1. A personal care composition comprising: an alkyl glyceryl ether; xanthan gum; glycerol and C 8-18 esters of fatty acids; a polyol, the polyol including glycerin; and C 14-22 Alkali metal salts of fatty acids.

2. The personal care composition of claim 1, wherein the alkyl glyceryl ether is present in an amount ranging from about 0.5 wt% to about 2.5 wt%, based on the total weight of the personal care composition.

3. The personal care composition of claim 1 or claim 2, wherein the xanthan gum is present in an amount ranging from about 0.1 wt% to about 0.6 wt%, based on the total weight of the personal care composition.

4. The personal care composition of any one of claims 1 to 3, wherein the glycerin and C 8-18 esters of fatty acids are present in an amount ranging from about 0.25 wt.% to about 2.25 wt.%, based on the total weight of the personal care composition.

5. The personal care composition of claim 4, wherein the polyol further includes a diol selected from propylene glycol, butylene glycol, or a combination thereof, wherein the diol is present in an amount ranging from about 40 wt% to about 66 wt%, based on the total weight of the personal care composition.

6. The personal care composition of any one of claims 1 to 5, wherein the C 14-22 The alkali metal salt of a fatty acid is present in an amount ranging from about 1 wt% to about 12 wt%.

7. The personal care composition of any one of claims 1 to 6, further comprising a liquid carrier, the liquid carrier including water, wherein the liquid carrier is present in an amount ranging from about 15 wt% to about 35 wt%, based on the total weight of the personal care composition.

8. The personal care composition of any one of claims 1 to 7, wherein the personal care composition is a deodorant composition, the deodorant composition being solid at room temperature.

9. A personal care composition comprising: methyl heptyl glyceryl; xanthan gum; glyceryl monolaurate; a polyol, the polyol including a diol and a triol; and sodium stearate.

10. The personal care composition of claim 9, wherein the methyl heptyl glyceryl is present in an amount ranging from about 0.5 wt% to about 2.5 wt%, based on the total weight of the personal care composition.

11. The personal care composition of claim 9 or claim 10, wherein the xanthan gum is present in an amount ranging from about 0.1 wt% to about 0.6 wt%, based on the total weight of the personal care composition.

12. The personal care composition of any one of claims 9 to 11, wherein the glyceryl monolaurate is present in an amount ranging from about 0.25 wt% to about 2.25 wt%, based on the total weight of the personal care composition.

13. The personal care composition of any one of claims 9 to 12, wherein the sodium stearate is present in an amount ranging from about 1 wt% to about 12 wt%, based on the total weight of the personal care composition.

14. A personal care composition, wherein the personal care composition is in the form of a deodorant composition, the personal care composition comprising: a polyol, the polyol including glycerin; methyl heptyl glyceryl, the amount of the methyl heptyl glyceryl ranging from about 0.5 wt% to about 2.5 wt%, based on the total weight of the deodorant composition; xanthan gum, the amount of the xanthan gum ranging from about 0.1 wt% to about 0.6 wt%, based on the total weight of the deodorant composition; sodium stearate, the amount of the sodium stearate ranging from about 1 wt% to about 12 wt%, based on the total weight of the deodorant composition; and 15. The personal care composition of claim 14, wherein the diol includes propylene glycol, butylene glycol, or a combination thereof. glycerol monolaurate in an amount ranging from about 0.25 wt% to about 2.25 wt%, based on the total weight of the deodorant composition.

15. The personal care composition of claim 14, wherein the personal care composition is in a solid state and in a pre-determined shape form.

16. The personal care composition of any one of claims 1 to 15, wherein the personal care composition reduces sweat by at least 21% as measured at 1 hour after application of the personal care composition.

17. The personal care composition of any one of claims 1 to 16, wherein the personal care composition reduces sweat by at least 9% as measured at 24 hours after application of the personal care composition.

18. A method of reducing malodor comprising: applying the personal care composition of any one of claims 1 to 17 to a skin surface.

19. The method of claim 18, wherein the personal care composition is selected from the group consisting of: a stick deodorant, a stick antiperspirant, a roll-on deodorant, a roll-on antiperspirant, a lotion, a cream, and a balm.

20. A method of manufacturing a personal care composition, comprising: a) mixing methylheptyl glycerin, glycerin, xanthan gum, sodium stearate, and glycerol monolaurate to form a blend; b) adding a predetermined amount of the blend to a container; and c) cooling the blend in the container to room temperature to form a solid state.

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