Personal care composition

Abstract

Disclosed herein are personal care compositions. According to one aspect, there is provided a personal care composition comprising: from about 1% to about 26% by weight of a surfactant system comprising (i) a non-sulfate-based anionic surfactant, (ii) a nonionic surfactant, (iii) an amphoteric surfactant wherein the weight ratio of nonionic surfactant to amphoteric surfactant is from about 1.5: 1 to about 3.5: 1; from about 1% to about 30% by weight of a polyol, wherein all weight percentages are based on the total weight of the personal care composition.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of priority to Chinese Patent Application No. 202310217268.X, filed on March 8, 2023, entitled “Personal Care Compositions” and Chinese Patent Application No. 202310217264.1, filed on March 8, 2023, entitled “Personal Care Compositions”, the contents of both of which are incorporated herein in their entirety for all purposes. Background Art

[0003] Personal care composition products, such as body washes, are becoming increasingly popular in the United States and around the world. A desirable body wash composition must meet a number of criteria. For example, to be acceptable to consumers, a body wash composition must exhibit good cleansing properties, must exhibit good lathering properties, must be mild to the skin (not causing drying or irritation), and preferably should even provide conditioning benefits to the skin.

[0004] Body wash (sometimes called shower gel) is a general term used to describe a formulation containing liquid surfactants for cleansing the body. Although sometimes referred to generically as "soap", such body wash formulations generally do not include soap, such as sodium or potassium salts of fatty acids. Conventional body wash formulations typically contain one of a variety of components including one or more surfactants, various emollients, fragrances, and other personal care ingredients. When compared to common soap, conventional body washes provide less skin irritation, improved lather in hard water conditions, and leave less residue on the skin and bathroom fixtures. Conventional body wash formulations use anionic surfactants, typically sodium lauryl sulfate or sodium laureth sulfate (SLES). Summary of the Invention

[0005] Summary of the invention is only intended to introduce a brief summary of some aspects of one or more embodiments of the present disclosure. Other applicable fields of the present disclosure will become apparent based on the specific embodiments provided below. Summary of the invention is not an exhaustive overview, nor is it intended to determine the key elements or important elements of this teaching, nor is it intended to delimit the scope of the present disclosure. On the contrary, its purpose is only to present one or more concepts as a preface to the following specific embodiments in a simplified form.

[0006] According to one aspect, a personal care composition is provided, comprising: from about 1 wt % to about 26 wt % of a surfactant system comprising (i) a non-sulfate anionic surfactant, (ii) a nonionic surfactant, and (iii) an amphoteric surfactant, wherein the weight ratio of the nonionic surfactant to the amphoteric surfactant is from about 1.5:1 to about 3.5:1; and from about 1 wt % to about 30 wt % of a polyol, wherein all weight percentages are based on the total weight of the personal care composition.

[0007] According to another aspect, a personal care composition is provided having: a surfactant system comprising (i) a taurate surfactant, (ii) a glucoside surfactant, and (iii) a betaine surfactant; and from about 1 wt % to about 30 wt % of a polyol, wherein the personal care composition is free of sulfate anionic surfactants and has a Natural Origin Index of about 90% or greater as measured according to ISO Standard 16128, wherein all weight percentages are based on the total weight of the personal care composition. DETAILED DESCRIPTION

[0008] For the purpose of illustration, the principles of the present invention are described by reference to a plurality of exemplary embodiments of the present invention. Although certain embodiments of the present invention are specifically described herein, it will be readily appreciated by those skilled in the art that the same principles are equally applicable to and can be used in other devices and methods. Before describing the disclosed embodiments of the present invention in detail, it should be understood that the present invention is not limited to the details of any particular embodiment disclosed herein in terms of its application. The terms used herein are for descriptive purposes rather than for limiting purposes.

[0009] As used herein and in the appended claims, the singular forms "a," "an," and "the" include plural references unless the context dictates otherwise. The singular form of any class of components refers not only to one chemical substance within that class, but also to mixtures of such chemical substances. The terms "a" (or "an"), "one / one or more / kinds," and "at least one / kinds" are used interchangeably herein. The terms "comprising," "including," and "having" are used interchangeably. The term "including" should be interpreted as "including but not limited to." The term "comprising" should be interpreted as "including, but not limited to."

[0010] As used throughout, ranges are used as shorthand for describing each and every value within the range. Any value within a range can be selected as the endpoint of the range. Thus, a range of 1 to 5 specifically includes 1, 2, 3, 4, and 5, as well as subranges such as 2 to 5, 3 to 5, 2 to 3, 2 to 4, 1 to 4, etc.

[0011] The term "about" when referring to a number means any number within 10% of that number. For example, the phrase "about 2 weight %" means a number between and including 1.8 weight % and 2.2 weight %.

[0012] All references cited herein are hereby incorporated by reference in their entirety. In the event of a conflict in a definition in the present disclosure and that of a cited reference, the present disclosure controls.

[0013] Unless otherwise indicated, abbreviations and symbols as used herein have their ordinary meanings. The abbreviation "wt%" means the percentage by weight relative to the personal care composition. The symbol "°" refers to degrees, such as temperature or angle. The symbols "h," "min," "mL," "nm," and "μm" refer to hours, minutes, milliliters, nanometers, and micrometers, respectively. The abbreviation "UV-VIS" when referring to a spectrometer or spectroscopy means ultraviolet-visible. The abbreviation "rpm" means revolutions per minute.

[0014] When referring to chemical structures and names, the symbols "C", "H", and "O" refer to carbon, hydrogen, and oxygen, respectively. The symbols "-", "=", and "≡" refer to a single bond, a double bond, and a triple bond, respectively.

[0015] As used herein, "volatile" means having a flash point below about 100°C. As used herein, "non-volatile" means having a flash point above about 100°C.

[0016] Any member of a species list used to exemplify or define a genus may be mutually distinct from, overlap with, be a subset of, be equivalent to, be nearly identical to, or be identical to any other member of the species list. Furthermore, unless explicitly stated, for example when reciting Markush groups, a species list defining or exemplifying a genus is open-ended and gives the possibility that there may be other species that define or exemplify the genus as well as or better than any other species listed.

[0017] The phrases "a mixture thereof," "a combination thereof," or "a combination of two or more thereof" do not require that the mixture contain all of A, B, C, D, E, and F (although it may contain all of A, B, C, D, E, and F). Rather, it means that the mixture may include any two or more of A, B, C, D, E, and F. In other words, it is equivalent to the phrase "one or more elements selected from A, B, C, D, E, and F, and a mixture of any two or more of A, B, C, D, E, and F." Similarly, the term "salts thereof" also refers to "salts thereof." Therefore, when the present disclosure refers to "an element selected from A, B, C, D, E, F, salts thereof, and mixtures thereof", it means that it may include one or more of A, B, C, D and F, may include one or more of the salts of A, B, C, D, E, and F, or may include a mixture of any two of the salts of A, B, C, D, E, F, the salts of A, B, C, D, E, and F.

[0018] All components and elements affirmatively set forth in this disclosure may be negatively excluded from the claims. In other words, the personal care compositions of the present disclosure may be free of or substantially free of all components and elements affirmatively recited throughout this disclosure. In some cases, the personal care compositions of the present disclosure may be substantially free of unincidental amounts of an ingredient or compound described herein. An unincidental amount of an ingredient or compound is the amount of that ingredient or compound that would be added to the personal care composition individually. For example, a personal care composition may be substantially free of unincidental amounts of an ingredient or compound, but such an ingredient or compound may be present as part of a raw material that is included in a blend of two or more compounds.

[0019] Some of the components identified in the different categories may overlap. In the event that there may be overlap and the personal care composition contains two components (or the composition contains more than two overlapping components), the overlapping compounds do not represent more than one component. For example, certain compounds may be characterized as both surfactants and emulsifiers. If a particular personal care composition contains both a surfactant and an emulsifier, a compound that can be characterized as both a surfactant and an emulsifier will only function as either a surfactant or an emulsifier—not as both.

[0020] For readability purposes, chemical functional groups are presented in their adjective form; for each adjective, the word "group" is assumed. For example, the adjective "alkyl" without a noun following it should be read as "alkyl group."

[0021] Aspects of the present invention relate to personal care compositions, and preferably personal care compositions having a Natural Origin Index of about 90% or greater, for example, as measured according to ISO Standard 16128. The inventors have discovered that personal care compositions formulated with certain surfactant systems can advantageously achieve a desired thickening while having a preferred Natural Origin Index and / or Biodegradability Index. In some embodiments, the personal care compositions can achieve a desired viscosity while having minimal or no traditional thickeners (e.g., acrylate-based thickeners, polymer-based thickeners, and / or polysaccharide-based thickeners).

[0022] According to one aspect, a personal care composition is provided, comprising: from about 1 wt % to about 26 wt % of a surfactant system comprising (i) a non-sulfate anionic surfactant, (ii) a nonionic surfactant, and (iii) an amphoteric surfactant, wherein the weight ratio of the nonionic surfactant to the amphoteric surfactant is from about 1.5:1 to about 3.5:1; and from about 1 wt % to about 30 wt % of a polyol, wherein all weight percentages are based on the total weight of the personal care composition.

[0023] The personal care composition can have a Natural Origin Index of about 90% or greater, e.g., as measured according to ISO Standard 16128. For example, in some embodiments, the personal care product can have a Natural Origin Index according to ISO Standard 16128 of about 90% or greater, about 91% or greater, about 92% or greater, about 93% or greater, about 94% or greater, about 95% or greater, about 96% or greater, about 97% or greater, about 98% or greater, about 99% or greater, or about 99.5% or greater.

[0024] Additionally or alternatively, the personal care composition can achieve a biodegradability index of about 85% or greater, e.g., as measured according to ISO standard 14855-1: 2005. In some cases, the personal care composition can have a biodegradability index of about 85% or greater, about 87% or greater, about 88% or greater, about 89% or greater, about 90% or greater, about 91% or greater, about 92% or greater, about 93% or greater, about 94% or greater, about 95% or greater, about 96% or greater, about 97% or greater, about 98% or greater, about 99% or greater, or about 99.5% or greater, e.g., according to ISO standard 14855-1: 2005.

[0025] In some embodiments, the personal care composition is substantially free of sulfate anionic surfactants or contains no sulfate anionic surfactants. For example, the personal care composition can be formulated to have about 6% or less, about 4% or less, about 3% or less, about 2% or less, about 1% or less, about 0.5% or less, or about 0.1% or less, by weight, of a sulfate anionic surfactant, based on the total weight of the personal care composition. In at least one embodiment, the personal care composition contains no sulfate anionic surfactants.

[0026] The personal care composition can also be formulated to be substantially free of ethylenediaminetetraacetic acid (EDTA) or free of ethylenediaminetetraacetic acid (EDTA). In some cases, the personal care composition has EDTA in an amount of about 3% by weight or less, about 2% by weight or less, about 1% by weight or less, about 0.5% by weight or less, about 0.1% by weight or less, or about 0.05% by weight or less, based on the total weight of the personal care composition containing EDTA. In at least one embodiment, the personal care composition is free of EDTA.

[0027] Personal care compositions preferably have less than about 1 ppm of 1,4-dimethoxybenzyl alcohol. In some embodiments, the personal care composition has 1 ppm or less, about 0.7 ppm or less, about 0.5 ppm or less, about 0.3 ppm or less, or about 0.1 ppm or less of 1,4-diol. alkyl.

[0028] Suitable components such as those listed below may or may not be included in the formulation of the personal care composition, depending on the specific combination of other components, the form of the personal care composition, and / or the use of the formulation (e.g., a ready-to-use personal care composition, a body wash composition, a cleansing composition, an antibacterial soap, etc.).

[0029] The personal care composition comprises a surfactant system containing two or more surfactants. The surfactant system typically comprises two or more surfactants selected from anionic surfactants (e.g., sulfate anionic surfactants and / or non-sulfate anionic surfactants), amphoteric surfactants, nonionic surfactants, and combinations of two or more thereof. For example, the surfactant system may comprise 2, 3, 4, 5, 6, 7, 8, or 9 or more surfactants. In some embodiments, the surfactant system comprises 2 to 8, 2 to 7, 2 to 6, 2 to 5, 2 to 4, 3 to 7, 3 to 6, 3 to 5, 4 to 8, 4 to 7, 4 to 6, or any range or sub-range thereof. Preferably, the surfactant system may comprise two or more surfactants, wherein the two or more surfactants are selected from different classes of non-sulfate anionic surfactants, amphoteric surfactants, and nonionic surfactants. For example, the surfactant system may comprise at least one non-sulfate anionic surfactant, at least one amphoteric surfactant, and at least one nonionic surfactant. In some embodiments, the surfactant system is composed of at least one amphoteric surfactant, at least one nonionic surfactant, and optionally at least one anionic surfactant (e.g., sulfate surfactant and / or non-sulfate surfactant). In other embodiments, the surfactant system is composed of at least one amphoteric surfactant (e.g., betaine surfactant) and at least one nonionic surfactant (e.g., glucoside surfactant).

[0030] The surfactant system can be present in the personal care composition in an amount ranging from about 1% to about 26% by weight, based on the total weight of the personal care composition. For example, the surfactant system can be present in the personal care composition in an amount ranging from about 1% to about 23% by weight, about 1% to about 20% by weight, about 1% to about 18% by weight, about 1% to about 16% by weight, about 1% to about 14% by weight, about 1% to about 12% by weight, about 1% to about 10% by weight; about 3% to about 26% by weight, about 3% to about 23% by weight, about 3% to about 20% by weight, about 3% to about 18% by weight, about 3% to about 16% by weight, about 3% to about 14% by weight, about 3% to about 12% by weight, about 3% to about 10% by weight; about 5% to about 26% by weight, about 5% to about 23% by weight, about 5% to about 20% by weight, about 5% to about 18% by weight, about 5% to about 16% by weight, about 5% to about 14% by weight %, about 5 wt % to about 12 wt %, about 5 wt % to about 10 wt %; about 7 wt % to about 26 wt %, about 7 wt % to about 23 wt %, about 7 wt % to about 20 wt %, about 7 wt % to about 18 wt %, about 7 wt % to about 16 wt %, about 7 wt % to about 14 wt %, about 7 wt % to about 12 wt %, about 7 wt % to about 10 wt %; about 9 wt % to about 26 wt %, about 9 wt % to about 23 wt %, about 9 wt % to about 20 wt %, about 9 wt % to about 18 wt %, about 9 wt % to about 16 wt %, about 9 wt % to about 14 wt %, about 9 wt % to about 12 wt %; about 11 wt % to about 26 wt %, about 11 wt % to about 23 wt %, about 11 wt % to about 20 wt %, about 11 wt % to about 18 wt %, about 11 wt % to about 16 wt %, about 11 wt % to about 14 wt %, or any range or sub-range thereof.

[0031] The anionic surfactant can be selected from sulfate surfactants, for example, selected from ammonium lauryl sulfate, ammonium lauryl ether sulfate, sodium lauryl sulfate, sodium cocoyl sulfate, ammonium cocoyl sulfate and the sulfate anionic surfactant of the combination of both or more thereof. Additionally or alternatively, the anionic surfactant can include a non-sulfate anionic surfactant or be made up of a non-sulfate anionic surfactant, for example, selected from those of: sulfonate surfactant, taurate surfactant, isethionate surfactant, sarcosinate surfactant, sulfonate surfactant, sulfosuccinate surfactant, sulfoacetate surfactant, alkoxylated monoacid surfactant, its salt and the combination of both or more thereof. Based on the gross weight of the personal care composition, the anionic surfactant can be present in the personal care composition with an amount of about 0.3 % by weight to about 10 % by weight. For example, the personal care composition can include the non-sulfate anionic surfactant in an amount ranging from about 0.3% to about 8%, about 0.3% to about 6%, about 0.3% to about 4%, about 0.3% to about 3%, about 0.3% to about 2%, about 0.5% to about 10%, about 0.5% to about 8%, about 0.5% to about 6%, about 0.5% to about 4%, about 0.5% to about 3%, about 0.5% to about 2%, about 1% to about 10%, about 1% to about 8%, about 1% to about 6%, about 1% to about 4%, about 1% to about 3%, about 1% to about % to about 6 weight %, about 1.5 wt % to about 4 weight %, about 1.5 wt % to about 3 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 weight %, about 2 wt % to about 3 wt %; about 3 wt % to about 10 wt %, about 3 wt % to about 8 wt %, about 3 wt % to about 6 wt %, about 3 wt % to about 4 weight %; about 4 wt % to about 10 wt %, about 4 wt % to about 8 wt %, about 4 wt % to about 6 wt %; about 5 wt % to about 10 wt %, about 5 wt % to about 8 wt %, about 5 wt % to about 6 wt %, or any range or sub-range thereof. The non-sulfate anionic surfactant can have an alkyl and / or acyl group containing 6 to 26 carbon atoms, 8 to 26 carbon atoms, 8 to 21 carbon atoms, 8 to 16 carbon atoms, 10 to 16 carbon atoms, or 10 to 13 carbon atoms. In some cases, the non-sulfate anionic surfactant contains an alkyl and / or acyl group having more than 26 carbon atoms.

[0032] The anionic surfactant may be selected from taurate surfactants having a structure according to the following formula:

[0033]

[0034] wherein R1 is a saturated or unsaturated, linear or branched alkyl chain having 6 to 18 carbon atoms, R2 is H or methyl, and M + is H, sodium, or potassium (e.g., sodium methyl cocoyl taurate).

[0035] Additional examples of taurate surfactants include sodium cocoyl taurate, potassium cocoyl taurate, potassium methyl cocoyl taurate, sodium hexanoyl methyl taurate, sodium cocoyl taurate, sodium lauroyl taurate, sodium methyl cocoyl taurate (SMCT), sodium methyl lauroyl taurate, sodium methyl myristoyl taurate, sodium methyl oleoyl taurate, sodium methyl palmitoyl taurate, sodium methyl stearoyl taurate, and combinations of two or more thereof. In some embodiments, the personal care composition comprises sodium lauroyl methyl taurate (or sodium methyl lauroyl taurate), sodium methyl cocoyl taurate (SMCT), or combinations thereof. In at least one preferred embodiment, the surfactant system comprises sodium methyl cocoyl taurate.

[0036] The limiting examples of isethionate surfactants include sodium isethionate, sodium cocoyl isethionate, sodium lauroyl methyl isethionate and sodium cocoyl methyl isethionate. Sulfonated fatty acid monoglycerides include sodium coconut oil monoglyceride sulfonate, etc. Disodium 2-sulfolaurate is another sulfonate surfactant that may be included in certain embodiments of the personal care composition. The example of sarcosinate surfactants includes potassium lauroyl sarcosinate, potassium cocoyl sarcosinate, sodium cocoyl sarcosinate, sodium lauroyl sarcosinate, sodium myristoyl sarcosinate, sodium oleoyl sarcosinate, sodium palmitoyl sarcosinate, ammonium lauroyl sarcosinate and a combination of both or more thereof. The limiting examples of alkyl taurates include sodium cocoyl taurate, sodium methyl cocoyl taurate, oleoyl taurate. In at least one preferred embodiment, the personal care composition includes one or more anionic surfactants containing oleoyl taurate and / or its salt.

[0037] Non-limiting examples of alkyl sulfosuccinates include disodium oleamido MIPA sulfosuccinate, disodium oleamido MEA sulfosuccinate, disodium lauryl sulfosuccinate, disodium laureth sulfosuccinate, diammonium lauryl sulfosuccinate, diammonium laureth sulfosuccinate, sodium dioctyl sulfosuccinate, disodium oleamido MEA sulfosuccinate, sodium dialkyl sulfosuccinates, or a combination of two or more thereof.

[0038] Non-limiting examples of alkyl sulfoacetates include, for example, alkyl sulfoacetates such as C4-C 18 Fatty alcohol sulfoacetate and / or salts thereof. A preferred sulfoacetate is sodium lauryl sulfoacetate. Useful cations for the salt include alkali metal ions such as sodium or potassium ions, ammonium ions, or alkanolammonium ions such as monoethanolammonium ions or triethanolammonium ions.

[0039] Examples of alkoxylated monocarboxylic acids include, but are not limited to, butylphenol ether-5 carboxylic acid, butylphenol ether-19 carboxylic acid, octaneth-4 carboxylic acid, octaneth-6 carboxylic acid, octaneth-9 carboxylic acid, ceteareth-25 carboxylic acid, cocoeth-7 carboxylic acid, C 9-11 Pareth-6 carboxylic acid, C 11-15 Pareth-7 carboxylic acid, C 12-13 Pareth-5 carboxylic acid, C 12-13 Pareth-8 Carboxylic Acid, C 12-13 Pareth-12 carboxylic acid, C 12-15 Pareth-7 carboxylic acid, C 12-15 Pareth-8 Carboxylic Acid, C 14-15Pareth-8 Carboxylic Acid, Deceth-7 Carboxylic Acid, Laureth-3 Carboxylic Acid, Laureth-4 Carboxylic Acid, Laureth-5 Carboxylic Acid, Laureth-6 Carboxylic Acid, Laureth-8 Carboxylic Acid, Laureth-10 Carboxylic Acid, Laureth-11 Carboxylic Acid, Laureth-12 Carboxylic Acid, Laureth-13 Carboxylic Acid, Laureth-14 Carboxylic Acid, Laureth-17 Carboxylic Acid, PPG-6-Laureth-6 Carboxylic Acid, PPG-8-Steareth-7 Carboxylic Acid, Myristeth-3 Carboxylic Acid, Myristeth-5 Carboxylic Acid, Nonylphenoleth-5 Carboxylic Acid, Nonylphenoleth-8 Carboxylic Acid, Nonylphenoleth-10 Carboxylic Acid, Octylphenoleth-3 Carboxylic Acid, Octylphenoleth In some embodiments, the personal care composition does not include one or more of the foregoing anionic surfactants. For example, in some embodiments, the surfactant system comprises at least one anionic surfactant, wherein the anionic surfactant consists of a taurate surfactant and / or a sulfonate anionic surfactant (e.g., disodium 2-sulfolaurate). In at least one embodiment, the personal care composition is free of anionic surfactants.

[0040] The surfactant system can comprise one or more amphoteric surfactants in an amount that can vary but typically ranges from about 1 wt. % to about 12 wt. %, based on the total weight of the personal care composition. For example, the total amount of amphoteric surfactants in the personal care composition can be 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 5 wt %, from about 1 wt % to about 4 wt %; from about 2 wt % to about 12 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 5 wt %, from about 2 wt % to about 4 wt %; from about 3 wt % to about 12 wt %, from about 3 wt % to about 10 wt %, from about 3 wt % to about 8 wt %, from about 3 wt % to about 6 wt %, from about 3 wt % to about 5 wt %; from about 4 wt % to about 12 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 4 wt % to about 5 wt %; from about 5 wt % to about 12 wt %, from about 5 wt % to about 10 wt %, from about 5 wt % to about 8 wt %, or any ranges or sub-ranges thereof.

[0041] Amphoteric surfactant is characterized by the combination of high surfactant activity, foam formation and mildness usually. Amphoteric surfactant can comprise a substituent such as alkyl or acyl group containing 8 to 18 carbon atoms, and / or a substituent containing one or more carboxylate radicals, sulfonate radical, sulfate radical, phosphate radical or phosphonate radical. For example, amphoteric surfactant can have an alkyl radical containing 8 to 20 carbon atoms, 8 to 16 carbon atoms, 10 to 16 carbon atoms or 10 to 13 carbon atoms. Amphoteric surfactant can include but is not limited to the derivative of aliphatic secondary amine and tertiary amine, wherein aliphatic group can be straight chain or branched, and wherein one of the aliphatic substituent comprises approximately 8 to approximately 18 carbon atoms, and one comprises an anionic water-soluble group, for example carboxyl, sulfonate radical, sulfate radical, phosphate radical or phosphonate radical.

[0042] Amphoteric surfactants can include amphoteric propionate surfactants, betaine surfactants, sulfobetaine surfactants, alkyl amphoacetate surfactants, and combinations of two or more thereof. In some cases, the personal care composition comprises one or more alkyl amphopropionates. Non-limiting examples of alkyl amphopropionate surfactants include cocoamphopropionate, cornamphopropionate, caprylamphopropionate, cornamphopropionate, caproamphopropionate, oleoamphopropionate, isostearoamphopropionate, stearoamphopropionate, lauroamphopropionate, salts thereof, and mixtures thereof. In one embodiment, the alkyl amphopropionate surfactant includes sodium cocoamphopropionate.

[0043] The personal care composition may include an amphoteric surfactant selected from betaine surfactants (also known as betaines). Examples of betaine surfactants include, but are not limited to, higher alkyl betaines such as cocodimethyl carboxymethyl betaine, lauryl dimethyl carboxy-methyl betaine, lauryl dimethyl α-carboxyethyl betaine, hexadecyl dimethyl carboxymethyl betaine, lauryl bis-(2-hydroxyethyl) carboxymethyl betaine, stearyl bis-(2-hydroxypropyl) carboxymethyl betaine, oleyl dimethyl γ-carboxypropyl betaine, and lauryl bis-(2-hydroxypropyl) α-carboxyethyl betaine; sulfobetaines such as cocodimethyl sulfopropyl betaine and stearyl dimethyl sulfopropyl betaine; amidobetaines; amidosulfobetaines; and the like. Preferably, the betaine surfactant is selected from the group consisting of coco betaine, cocamidopropyl betaine, lauryl betaine, lauryl hydroxysultaine, lauryl dimethyl betaine, cocamidopropyl hydroxysultaine, behenyl betaine, caprylyl / caprylamidopropyl betaine, lauryl hydroxysultaine, stearyl betaine, and combinations of two or more thereof. In some embodiments, the at least one betaine surfactant is selected from the group consisting of coco betaine, cocamidopropyl betaine, behenyl betaine, caprylyl / caprylamidopropyl betaine, and lauryl betaine, and combinations of two or more thereof. In other embodiments, the betaine surfactant is selected from the group consisting of cocamidopropyl betaine, lauryl dimethyl betaine, cetyl dimethyl betaine, and cocoamphodiacetate, and combinations of two or more thereof. In at least one embodiment, the personal care composition comprises coco betaine, cocamidopropyl betaine, or a combination thereof.

[0044] In some cases, the amphoteric surfactant may be selected from sultaines (also known as sulfobetaine) and hydroxysultaines such as cocamidopropyl hydroxysultaine. The sultaine may be an alkyl sultaine having 6 to 20 carbon atoms, 8 to 18 carbon atoms, 8 to 16 carbon atoms, or 10 to 16 carbon atoms. Non-limiting examples of alkyl sultaines include hydroxysultaines having a structure according to the following formula:

[0045]

[0046] wherein R is an alkyl group having 8 to 18 carbon atoms. Examples of alkyl sultaine surfactants include, but are not limited to, cocamidopropyl hydroxysultaine, lauryl hydroxysultaine, and combinations of two or more thereof.

[0047] In some embodiments, the surfactant system comprises an amphoteric surfactant selected from a betaine surfactant and, optionally, an additional amphoteric surfactant other than betaine (including those discussed above). Preferably, the one or more betaine surfactants can be selected from coco-betaine, cocamidopropyl betaine, lauryl betaine, lauryl hydroxysultaine, lauryl dimethyl betaine, cocamidopropyl hydroxysultaine, behenyl betaine, capryloyl / capramidopropyl betaine, lauryl hydroxysultaine, stearyl betaine, and combinations of two or more thereof. In some embodiments, one or more of the aforementioned amphoteric surfactants are not included in the personal care composition. For example, the surfactant system can comprise at least one amphoteric surfactant, wherein the amphoteric surfactant consists of a betaine surfactant.

[0048] The surfactant system can include one or more nonionic surfactants. The one or more nonionic surfactants can be present in an amount of from about 1 wt % to about 12 wt %, based on the total weight of the personal care composition. In some cases, the one or more nonionic surfactants are present in the surfactant system in the following amounts: 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 5 wt %, from about 1 wt % to about 4 wt %; from about 2 wt % to about 12 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 5 wt %, from about 2 wt % to about 4 wt %; from about 3 wt % to about 12 wt %, from about 3 wt % to about 12 wt %, from about 3 wt % to about 12 wt %. From about 10 wt. %, from about 3 wt. % to about 8 wt. %, from about 3 wt. % to about 6 wt. %, from about 3 wt. % to about 5 wt. %; from about 4 wt. % to about 12 wt. %, from about 4 wt. % to about 10 wt. %, from about 4 wt. % to about 8 wt. %, from about 4 wt. % to about 7 wt. %, from about 4 wt. % to about 6 wt. %; from about 5 wt. % to about 12 wt. %, from about 5 wt. % to about 10 wt. %, from about 5 wt. % to about 8 wt. %, from about 5 wt. % to about 7 wt. %; from about 6 wt. % to about 12 wt. %, from about 6 wt. % to about 10 wt. %, from about 6 wt. % to about 8 wt. %, from about 7 wt. % to about 11 wt. %, or any range or subrange thereof.

[0049] The one or more nonionic surfactants may be selected from glycoside surfactants, glucoside surfactants, glyceride surfactants, compounds produced by the condensation of alkylene oxide groups (hydrophilic in nature) with organic hydrophobic compounds that may be aliphatic or alkyl aromatic in nature, and combinations of two or more thereof. Preferably, at least one nonionic surfactant is selected from glycoside surfactants, glucoside surfactants, glyceride surfactants, and combinations of two or more thereof. In some embodiments, the personal care composition comprises two or more (e.g., 2, 3, 4, or 5) nonionic surfactants. In some embodiments, the nonionic surfactant consists of one or more glycoside surfactants, one or more glucoside surfactants, one or more glyceride surfactants, and combinations of two or more thereof. In at least one embodiment, the nonionic surfactant consists of a glucoside surfactant.

[0050] Surfactant system can comprise one or more glyceride surfactants, and described one or more glyceride surfactants are selected from glyceryl monostearate, glyceryl oleate, linoleic acid glyceride, ricinoleic acid glyceride, PEG oleic acid glyceride, PCA oleic acid glyceride and its two or more combination.In at least one embodiment, PEG oleic acid glyceride can be PEG-18 oleic acid glyceride.The example of glucoside surfactant comprises decyl glucoside, stearyl glucoside, lauryl glucoside, coconut oil base glucoside, cetearyl glucoside, decyl lauryl glucoside, lauroyl ethyl glucoside, myristoyl ethyl glucoside, oleoyl ethyl glucoside or its two or more combination.In some embodiments, surfactant system comprises one or more nonionic surfactants, and described one or more nonionic surfactants are selected from lauryl glucoside, lauroyl ethyl glucoside, myristoyl ethyl glucoside, oleoyl ethyl glucoside and its two or more combination. Additionally or alternatively, the glucoside surfactant may be selected from polyglucosides, such as alkyl polyglucosides.

[0051] Other examples of nonionic surfactants include poloxamers, polyethylene oxide condensates of alkylphenols, products derived from the condensation of ethylene oxide with the reaction product of propylene oxide and ethylenediamine, ethylene oxide condensates of aliphatic alcohols, acids and esters, long-chain tertiary amine oxides, long-chain tertiary phosphine oxides, long-chain dialkyl sulfoxides and mixtures of such substances. Other examples of nonionic surfactants include polyoxyethylene, polyoxyethylene sorbitan esters, polyoxyethylene 40 hydrogenated castor oil, fatty alcohol ethoxylates, polyethylene oxide condensates of alkylphenols, products derived from the condensation of ethylene oxide with the reaction product of propylene oxide and ethylenediamine, ethylene oxide condensates of aliphatic alcohols, long-chain tertiary amine oxides, long-chain tertiary phosphine oxides, long-chain dialkyl sulfoxides, or a combination of two or more thereof. In some cases, the nonionic surfactant includes amine oxides, fatty acid amides, ethoxylated fatty alcohols, block copolymers of polyethylene glycol and polypropylene glycol, glycerol alkyl esters, polyoxyethylene glycol octylphenol ethers, sorbitan alkyl esters, polyoxyethylene glycol sorbitan alkyl esters, or a combination of two or more thereof.

[0052] In at least one embodiment, the nonionic surfactant comprises decyl glucoside. In another embodiment, the nonionic surfactant comprises PEG methyl glucose dioleate, cocoyl glucoside, or a combination thereof. The PEG methyl glucose dioleate can be PEG-120 methyl glucose dioleate.

[0053] The personal care composition can be formulated to have a surfactant system having a specific weight ratio of total nonionic surfactant to total amphoteric surfactant. For example, the surfactant system can have a weight ratio of total nonionic surfactant to amphoteric surfactant in the range of about 1.5:1 to about 3.5:1. In some embodiments, the personal care composition has a weight ratio of total nonionic surfactant to amphoteric surfactant in the range of about 1.5:1 to about 3.5:1, about 2:1 to about 3.5:1, about 2.5:1 to about 3.5:1, about 3:1 to about 3.5:1; about 1.5:1 to about 3:1, about 2:1 to about 3:1, about 2.5:1 to about 3:1, about 3:1 to about 3:1; about 1.5:1 to about 2.5:1, about 2:1 to about 2.5:1, or any range or subrange thereof.

[0054] Additionally or alternatively, the personal care composition can be formulated to have a surfactant system having a specific weight ratio of total glucoside surfactant to total betaine surfactant. For example, the surfactant system can have a weight ratio of total nonionic surfactant to amphoteric surfactant in the range of about 1.5:1 to about 3.5:1. In some embodiments, the personal care composition has a weight ratio of total nonionic surfactant to amphoteric surfactant in the range of about 1.5:1 to about 3.5:1, about 2:1 to about 3.5:1, about 2.5:1 to about 3.5:1, about 3:1 to about 3.5:1; about 1.5:1 to about 3:1, about 2:1 to about 3:1, about 2.5:1 to about 3:1, about 3:1 to about 3:1; about 1.5:1 to about 2.5:1, about 2:1 to about 2.5:1, or any range or subrange thereof.

[0055] The personal care composition can be formulated to have a surfactant system having a specific weight ratio of total non-sulfate anionic surfactant to total amphoteric surfactant. For example, in some preferred embodiments, the weight ratio of the non-sulfate anionic surfactant to the amphoteric surfactant of the personal care composition ranges from about 1:2 to about 1:9, from about 1:2 to about 1:8, from about 1:2 to about 1:7, from about 1:2 to about 1:6.5, from about 1:2 to about 1:6; from about 1:3 to about 1:9, from about 1:3 to about 1:8, from about 1:3 to about 1:7, from about 1:3 to about 1:6.5, from about 1:3 to about 1:6; from about 1:3.5 to about 1:9, from about 1:3.5 to about 1:8, from about 1:3.5 to about 1:7, from about 1:3.5 to about 1:6.5, from about 1:3.5 to about 1:6; from about 1:4 to about 1:9, from about 1:4 to about 1:8, from about 1:4 to about 1:7, from about 1:4 to about 1:6.5, from about 1:4 to about 1:6, or any range or sub-range thereof.

[0056] Additionally or alternatively, the surfactant system can have a weight ratio of the total amount of taurate surfactant (e.g., sodium methyl cocoyl taurate and / or sodium methyl oleoyl taurate) to the total amount of betaine surfactant (e.g., cocamidopropyl betaine) ranging from about 1:2 to about 1:9. For example, the surfactant system can have a weight ratio of taurate surfactant to betaine surfactant in the range of from about 1:2 to about 1:8, from about 1:2 to about 1:7, from about 1:2 to about 1:6.5, from about 1:2 to about 1:6; from about 1:3 to about 1:9, from about 1:3 to about 1:8, from about 1:3 to about 1:7, from about 1:3 to about 1:6.5, from about 1:3 to about 1:6; from about 1:3.5 to about 1:9, from about 1:3.5 to about 1:8, from about 1:3.5 to about 1:7, from about 1:3.5 to about 1:6.5, from about 1:3.5 to about 1:6; from about 1:4 to about 1:9, from about 1:4 to about 1:8, from about 1:4 to about 1:7, from about 1:4 to about 1:6.5, from about 1:4 to about 1:6, or any range or sub-range thereof.

[0057] The personal care composition can include one or more polyols. Preferably, the personal care composition includes one or more polyols in an amount of from about 1 wt % to about 30 wt %, based on the total weight of the personal care composition. For example, the total amount of polyols in the personal care composition can be from about 1 wt % to about 25 wt %, from about 1 wt % to about 22 wt %, from about 1 wt % to about 18 wt %, from about 1 wt % to about 12 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 3 wt %, from about 1 wt % to about 22 wt %, from about 2 wt % to about 30 wt %, from about 2 wt % to about 25 wt %, from about 2 wt % to about 22 wt %, from about 2 wt % to about 18 wt %, from about 2 wt % to about 12 wt %, from about 2 wt % to about 8 % to about 4 wt %, about 2 wt % to about 3 wt %; about 3 wt % to about 30 wt %, about 3 wt % to about 25 wt %, about 3 wt % to about 22 wt %, about 3 wt % to about 18 wt %, about 3 wt % to about 12 wt %, about 3 wt % to about 8 wt %, about 3 wt % to about 6 wt %; about 5 wt % to about 30 wt %, about 5 wt % to about 25 wt %, about 5 wt % to about 22 wt %, about 5 wt % to about 20 wt %, about 5 wt % to about 18 wt %, about 5 wt % to about 16 wt %, about 5 wt % to about 12 wt %, about 5 % to about 10 wt %, about 5 wt % to about 8 wt %; about 7 wt % to about 30 wt %, about 7 wt % to about 25 wt %, about 7 wt % to about 22 wt %, about 7 wt % to about 20 wt %, about 7 wt % to about 18 wt %, about 7 wt % to about 16 wt %; about 9 wt % to about 30 wt %, about 9 wt % to about 25 wt %, about 9 wt % to about 22 wt %, about 9 wt % to about 20 wt %, about 9 wt % to about 18 wt %, about 9 wt % to about 16 wt %; about 12 wt % to about 30 wt %, about 12 wt % to about 25 wt %, about 12 wt % to about 22 wt %, From about 12% to about 20% by weight, from about 12% to about 18% by weight, from about 12% to about 16% by weight; from about 14% to about 30% by weight, from about 14% to about 25% by weight, from about 14% to about 22% by weight, from about 14% to about 20% by weight, from about 14% to about 18% by weight; from about 16% to about 30% by weight, from about 16% to about 25% by weight, from about 16% to about 22% by weight, from about 16% to about 20% by weight; from about 18% to about 30% by weight, from about 18% to about 25% by weight, from about 21% to about 25% by weight, or any range or sub-range thereof.

[0058] The polyol may be selected from a diol or a compound having a plurality of hydroxyl groups. In some cases, one or more polyols are selected from C2 to C 32 Polyol. The one or more polyols can be liquid at ambient temperature (25° C.). The one or more polyols can have 2 to 32 carbon atoms, 3 to 16 carbon atoms, or 3 to 12 carbon atoms.

[0059] In some cases, the polyols that can be included in the personal care composition include ethylene glycol, propylene glycol, butylene glycol, hexylene glycol, glycerol, diglycerol, diethylene glycol and dipropylene glycol and mixtures thereof. In some cases, the personal care composition comprises glycerol and optionally one or more polyols other than glycerol. Non-limiting examples of polyols that can be optionally included in personal care include and / or can be selected from alkane diols such as glycerol, 1,2,6-hexanetriol, trimethylolpropane, ethylene glycol, propylene glycol, butylene glycol, pentanediol, hexylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, pentaethylene glycol, dipropylene glycol, 2-butene-1,4-diol, 2-ethyl-1,3-hexanediol, 2-methyl-2,4-pentanediol, octyl glycol, 1,2-hexanediol, 1,2-pentanediol and 4-methyl-1,2-pentanediol; glycol ethers such as ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, propylene glycol monomethyl ether, propylene ... Ether, ethylene glycol monobutyl ether, ethylene glycol monomethyl ether acetate, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol mono-n-propyl ether, ethylene glycol monoisopropyl ether, diethylene glycol monoisopropyl ether, ethylene glycol mono-n-butyl ether, ethylene glycol mono-tert-butyl ether, diethylene glycol mono-tert-butyl ether, 1-methyl-1-methoxybutanol, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol mono-tert-butyl ether, propylene glycol mono-n-propyl ether, propylene glycol monoisopropyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, dipropylene glycol mono-n-propyl ether, dipropylene glycol monoisopropyl ether, sorbitol, sorbitan, glyceryl triacetate and mixtures thereof.

[0060] One or more polyols can optionally be glycols or glycol ethers, such as monomethyl ether, monoethyl ether and monobutyl ether of ethylene glycol, propylene glycol or its ethers, for example, monomethyl ether of propylene glycol, butylene glycol, hexylene glycol, dipropylene glycol, and alkyl ethers of diethylene glycol, such as monoethyl ether or monobutyl ether of diethylene glycol. In some cases, one or more polyols can include or be selected from ethylene glycol, propylene glycol, butylene glycol, hexylene glycol, pentylene glycol, 1,3-propylene glycol, diethylene glycol, dipropylene glycol, 1,4-butylene glycol, 1,5-pentanediol, hexamethylene-1,6-diol, glycerol, diglycerol, caprylyl glycol and / or a mixture of two or more thereof. In certain embodiments, the personal care composition can include a polyol selected from glycerol (preferably, plant refined glycerol), butylene glycol and 1,3-propylene glycol, polyglutamic acid, sugar isomers and combinations thereof. In some embodiments, the polyol is polyethylene glycol, such as polyethylene glycol 600.

[0061] Additionally or alternatively, the personal care composition can include a polyol having a molecular weight of about 100 g / mol to 5000 g / mol. For example, the polyol can include polyethylene glycol, polypropylene glycol, a block polymer of polyethylene glycol and polypropylene glycol, or a combination of two or more thereof. In some embodiments, the polyol includes polypropylene glycol, polypropylene glycol, and / or a block polymer of polyethylene glycol and polypropylene glycol having a molecular weight of about 100 to about 900, about 200 to about 800, about 400, about 1500 to about 2500, about 2000 to about 4500, or any range or subrange thereof.

[0062] The personal care compositions may optionally comprise one or more thickeners. The amount of thickener, if present, in the personal care composition can be from about 0.1% to about 7% by weight, from about 0.1% to about 5% by weight, from about 0.1% to about 4% by weight, from about 0.1% to about 3% by weight, from about 0.1% to about 2% by weight, from about 0.1% to about 1% by weight; from about 0.5% to about 7% by weight, from about 0.5% to about 5% by weight, from about 0.5% to about 4% by weight, from about 0.5% to about 3% by weight, from about 0.5% to about 2% by weight; from about 1% to about 7% by weight, from about 1% to about 5% by weight, from about 1% to about 4% by weight, from about 1% to about 3% by weight, from about 1% to about 2% by weight; from about 2% to about 7% by weight, from about 2% to about 5% by weight, from about 2% to about 4% by weight, from about 2% to about 3% by weight; from about 3% to about 7% by weight, from about 3% to about 5% by weight, from about 3% to about 4% by weight, or any range or sub-range thereof.

[0063] Without being limited to any particular theory, the personal care compositions in some embodiments achieve a preferred viscosity with minimal or substantially no thickener (e.g., thickeners other than surfactants) or no thickener (e.g., thickeners other than surfactants). For example, the personal care composition may include a thickener in a total amount of about 0.1%, about 0.5%, about 1%, about 2%, about 3%, or about 3.5% to about 1%, about 2%, about 3%, about 4%, or about 5% by weight, based on the total weight of the personal care composition, including any ranges or subranges derived therefrom. In some embodiments, the personal care composition may include a thickener in a total amount of about 5% or less, about 4% or less, about 3% or less, about 2% or less, about 1% or less, about 0.5% or less, or about 0.1% or less by weight, based on the total weight of the personal care composition. In some preferred embodiments, the personal care composition contains no thickener other than the thickener that constitutes the surfactant.

[0064] Thickeners may be referred to as "thickeners" or "viscosity modifiers". Thickeners are typically included to increase the viscosity of personal care compositions. Non-limiting examples of thickeners that may be incorporated into or excluded from personal care compositions include natural gums, polyacrylate cross-polymers or cross-linked polyacrylate polymers, cationic acrylate copolymers, anionic acrylic or carboxylic acid polymers, polyacrylamide polymers, polysaccharides such as cellulose derivatives, cationic gums, polyquaternium salts, vinyl pyrrolidone homopolymers / copolymers, C 8-24 Hydroxyl substituted aliphatic acid, C 8-24 Conjugated aliphatic acids, sugar fatty esters, polyglycerol esters, and mixtures thereof. Specific types of thickeners that may be mentioned include the following: gums (e.g., natural gums), sucrose esters, polyvinylpyrrolidone (PVP) and copolymers, cellulose, polyquaternary ammonium compounds, and homopolymers or copolymers based on carboxylic acids or carboxylic acid esters, which may be linear or cross-linked. Examples of polysaccharides include cellulose, carboxymethyl hydroxyethyl cellulose, cellulose acetate propionate carboxylate, hydroxyethyl cellulose, hydroxyethyl ethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, methyl hydroxyethyl cellulose, microcrystalline cellulose, sodium cellulose sulfate, carrageenan, or combinations of two or more thereof. Examples of natural gums include gum karaya, gum arabic, and gum tragacanth.

[0065] In some embodiments, the personal care composition is substantially free of acrylate-based thickeners or free of acrylate-based thickeners. For example, the personal care composition can be formulated to have about 6% or less, about 4% or less, about 3% or less, about 2% or less, about 1% or less, about 0.5% or less, or about 0.1% or less, by weight, of acrylate-based thickeners, based on the total weight of the personal care composition. In at least one embodiment, the personal care composition is free of acrylate-based thickeners.

[0066] Additionally or alternatively, the personal care composition can be substantially free of polymer-based thickeners or free of polymer-based thickeners. For example, the personal care composition can be formulated to have about 6% or less, about 4% or less, about 3% or less, about 2% or less, about 1% or less, about 0.5% or less, or about 0.1% or less of a polymer-based thickener, based on the total weight of the personal care composition. In at least one embodiment, the personal care composition is free of polymer-based thickeners.

[0067] The personal care composition can also be substantially free of polysaccharide-based thickeners or free of polysaccharide-based thickeners. For example, the personal care composition can be formulated to have about 6% or less, about 4% or less, about 3% or less, about 2% or less, about 1% or less, about 0.5% or less, or about 0.1% or less of a polysaccharide-based thickener, based on the total weight of the personal care composition. In at least one embodiment, the personal care composition is free of polysaccharide-based thickeners.

[0068] Additionally or alternatively, the personal care composition can be substantially free of thickeners (e.g., other than the thickeners that constitute the surfactant) or free of thickeners (e.g., other than the thickeners that constitute the surfactant). For example, the personal care composition can be formulated to have about 6% or less, about 4% or less, about 3% or less, about 2% or less, about 1% or less, about 0.5% or less, or about 0.1% or less, by weight, of thickeners (e.g., other than the thickeners that constitute the surfactant), based on the total weight of the personal care composition. In at least one embodiment, the personal care composition is free of thickeners.

[0069] In certain embodiments, the personal care composition comprises a salt in an amount ranging from about 0.1% to about 4.5% by weight, based on the total weight of the personal care composition. For example, the personal care composition can be formulated to have the salt present in the following amounts: from about 0.1% to about 4.5% by weight, from about 0.1% to about 4% by weight, from about 0.1% to about 3.5% by weight, from about 0.1% to about 3% by weight, from about 0.1% to about 2.5% by weight, from about 0.1% to about 2% by weight; from about 0.5% to about 4.5% by weight, from about 0.5% to about 4% by weight, from about 0.5% to about 3.5% by weight, from about 0.5% to about 3% by weight, from about 0.5% to about 2.5% by weight; from about 1% to about 4.5% by weight, from about 1% to about 3. % to about 3 wt %, about 1 wt % to about 2.5 wt %, about 1 wt % to about 2 wt %; about 1.5 wt % to about 4.5 wt %, about 1.5 wt % to about 4 wt %, about 1.5 wt % to about 3.5 wt %, about 1.5 wt % to about 3 wt %, about 1.5 wt % to about 2.5 wt %; about 2 wt % to about 4.5 wt %, about 2 wt % to about 4 wt %, about 2 wt % to about 3.5 wt %, about 2 wt % to about 3 wt %; about 2.5 wt % to about 4.5 wt %, about 2.5 wt % to about 4 wt %, about 2.5 wt % to about 3.5 wt %, about 3 wt % to about 4.5 wt %, about 3 wt % to about 4.5 wt %, or any range or subrange thereof. The salt can be an inorganic salt such as sodium chloride, sodium sulfate, calcium chloride, potassium chloride, or a combination thereof.

[0070] The personal care composition can be formulated to have a viscosity of from about 3,000 cP to about 15,000 cP in undiluted form using a Brookfield DV2T viscometer with a No. 5 spindle at 20 RPM and a temperature of 25°C. In some cases, the personal care composition has a viscosity of from about 3,000 cP to about 15,000 cP, from about 3,000 cP to about 12,000 cP, from about 3,000 cP to about 10,000 cP, from about 3,000 cP to about 8,000 cP, from about 3,000 cP to about 7,000 cP, from about 3,000 cP to about 6,000 cP; from about 3,500 cP to about 15,000 cP, from about 3,500 cP to about 12,000 cP, from about 3,500 cP to about 10,000 cP, from about 3,500 cP to about 8,000 cP, from about 3,500 cP to about 7,000 cP, from about 3,500 cP to about 6,000 cP, using a Brookfield DV2T viscometer with a No. 5 spindle at 20 RPM and a temperature of 25°C. cP; about 4,000 cP to about 15,000 cP, about 4,000 cP to about 12,000 cP, about 4,000 cP to about 10,000 cP, about 4,000 cP to about 8,000 cP, about 4,000 cP to about 7,000 cP, about 4,000 cP to about 6,000 cP; about 4,500 cP to about 15,000 cP, about 4,500 cP to about 12,000 cP, about 4,500 cP to about 10,000 cP, about 4,500 cP to about 8,000 cP, about 4,500 cP to about 7,000 cP, about 4,500 cP to about 6,000 cP, or any range or sub-range thereof.

[0071] Personal care compositions typically include water.Water can be present in the personal care composition in an amount ranging from about 45 wt % to about 94 wt %, based on the total weight of the personal care composition. For example, the personal care composition can include water in the following amounts, based on the total weight of the personal care composition: from about 55% to about 94% by weight, from about 65% to about 94% by weight, from about 68% to about 94% by weight, from about 71% to about 94% by weight, from about 75% to about 94% by weight, from about 78% to about 94% by weight, from about 81% to about 94% by weight, from about 84% to about 94% by weight; from about 45% to about 91% by weight, from about 55% to about 91% by weight, from about 65% to about 91% by weight, from about 68% to about 91% by weight, from about 71% to about 91% by weight, from about 75% to about 91% by weight, from about 78% to about 91% by weight, from about 81% to about 91% by weight; from about 45% to about 88% by weight, from about 55% to about 88% by weight, from about 65% to about 88% by weight, from about 68% to about 88% by weight, from about 71% to about 88% by weight, from about 75% to about 94% by weight % to about 88 wt%, about 78 wt% to about 88 wt%; about 45 wt% to about 85 wt%, about 55 wt% to about 85 wt%, about 65 wt% to about 85 wt%, about 68 wt% to about 85 wt%, about 71 wt% to about 85 wt%, about 75 wt% to about 85 wt%, about 78 wt% to about 85 wt%; about 45 wt% to about 82 wt%, about 55 wt% to about 82 wt%, about 65 wt% to about 82 wt%, about 68 wt% to about 82 wt%, about 71 wt% to about 82 wt%, about 75 wt% to about 82 wt%; about 45 wt% to about 79 wt%, about 55 wt% to about 79 wt%, about 65 wt% to about 79 wt%, about 68 wt% to about 79 wt%; about 45 wt% to about 76 wt%, about 55 wt% to about 76 wt%, about 65 wt% to about 76 wt%, about 68 wt% to about 76 wt%, or any range or sub-range thereof.

[0072] The personal care composition may include one or more pH adjusting agents to increase or decrease the overall pH of the personal care composition. For example, one or more acids may be included to decrease the pH of the personal care composition. Examples of suitable acids for decreasing the pH of the personal care composition include, but are not limited to, citric acid, acetic acid, and the like. The personal care composition may include one or more bases, such as sodium hydroxide, potassium hydroxide, and the like, to increase the pH of the personal care composition. One of ordinary skill in the art will readily recognize additional or alternative acids and bases suitable for adjusting the pH of a personal care composition.

[0073] The amount of pH adjusting agent in the personal care composition can be based on the desired pH of the final form of the personal care composition and / or product (e.g., in an undiluted / concentrated form and / or in a diluted / ready-to-use form). For example, the total amount of pH adjusting agent can range from about 0.05% to about 20% by weight, based on the total weight of the personal care composition. In some cases, the total amount of pH adjusting agent is from about 0.05% to about 15% by weight, from about 0.1% to about 10% by weight, or from about 0.12% to about 5% by weight, based on the total weight of the personal care composition, including ranges and subranges therebetween.

[0074] Without being limited to any particular theory, it is believed that a personal care composition formulated with a surfactant system comprising specific surfactants in the specific amounts and ratios disclosed herein and a specific pH can achieve the preferred viscosity. The pH of the personal care composition can be from about 2 to about 4.5, from about 2 to about 4, from about 2 to about 3.75, from about 2 to about 3.5, from about 2 to about 3.25, from about 2 to about 3; from about 2.5 to about 4.5, from about 2.5 to about 4, from about 2.5 to about 3.75, from about 2.5 to about 3.5, from about 2.5 to about 3.25, from about 2.5 to about 3; from about 2.75 to about 4.5, from about 2.75 to about 4, from about 2.75 to about 3.75, from about 2.75 to about 3.5, from about 2.75 to about 3.25, or any range or subrange thereof.

[0075] Personal care compositions typically include a preservative system. The preservative system can include lactic acid, citric acid, sodium benzoate, salicylic acid, N,N-bis(carboxymethyl)-L-glutamate tetrasodium, a salt thereof, or a combination of two or more thereof. For example, the preservative system can include sodium lactate, sodium salicylate, calcium lactate, and / or sodium citrate. In some embodiments, the preservative system includes citric acid and / or its salt and salicylic acid and / or its salt. In another embodiment, the preservative system includes N,N-bis(carboxymethyl)-L-glutamate tetrasodium and at least one preservative selected from citric acid, salicylic acid, a salt thereof, and a combination of two or more thereof. Additionally or alternatively, the preservative system can include at least one of lactic acid, benzalkonium chloride, or a combination thereof, and at least one of sodium benzoate, potassium sorbate, hydroxyacetophenone, ethylhexylglycerin, or a combination thereof. In some embodiments, the preservative system includes lactic acid, benzalkonium chloride, and at least one of sodium benzoate, potassium sorbate, and a combination thereof.

[0076] The personal care composition may also include one or more colorants. The colorant may be a pigment, a dye, or a mixture thereof. Non-limiting examples of pigments include titanium dioxide, zinc oxide, kaolin, mica, and the like. Non-limiting examples of dyes include food dyes suitable for food, pharmaceutical, and cosmetic applications, and mixtures thereof. Some pigments (colorants) are known as FD&C dyes. In some embodiments, the colorant may be present in an amount ranging from about 0.0001% by weight to about 0.4% by weight, including all percentages and sub-ranges therebetween, based on the gross weight of the personal care composition. In other embodiments, the colorant may be present in an amount ranging from about 0.0001% by weight to about 4% by weight, including all percentages and sub-ranges therebetween, based on the gross weight of the personal care composition.

[0077] Example

[0078] Example 1

[0079] Two non-limiting exemplary personal care compositions (Example Compositions A and B) and four comparative compositions (Comparative Compositions 1 to 4) were prepared according to aspects of the present invention. The formulations of Example Compositions A and B and Comparative Compositions 1 to 4 are shown in Table 1 below.

[0080]

[0081] Example 2

[0082] Example compositions A and B and comparative compositions 1 to 4 were evaluated to assess the foaming properties of such personal care compositions. The foam of each personal care composition was evaluated using a FoamSpin instrument commercially available from Adaptive Instruments. Specifically, a sample of each personal care composition was stirred to generate foam and the entire foam generation and decay process was monitored. The FoamSpin instrument measured the foam volume and foam velocity over time and determined when the foam reached a peak and then decayed over time.

[0083] The maximum foam volume and final foam volume for each of Example Compositions A and B and Comparative Compositions 1 to 4 are provided in Table 2.

[0084]

Claims

1. A personal care composition comprising: From about 1 wt. % to about 26 wt. % of a surfactant system comprising: (i) non-sulfate anionic surfactants, (ii) a nonionic surfactant, and (iii) amphoteric surfactants, wherein the weight ratio of the nonionic surfactant to the amphoteric surfactant is from about 1.5:1 to about 3.5:1; and from about 1% to about 30% by weight of a polyol, All weight percentages are based on the total weight of the personal care composition.

2. The personal care composition of claim 1, wherein the personal care composition has a Natural Origin Index based on ISO Standard 16128 of about 90% or greater.

3. The personal care composition of claim 2, wherein the natural origin index of the personal care composition based on ISO standard 16128 is about 96% or greater, preferably about 98% or greater.

4. The personal care composition according to any preceding claim, wherein the personal care composition is free of sulfate-based anionic surfactants.

5. The personal care composition according to any preceding claim, wherein the non-sulfate anionic surfactant is selected from the group consisting of sulfonated fatty acid monoglyceride surfactants, isethionate surfactants, sarcosinate surfactants, taurate surfactants, and combinations of two or more thereof.

6. A personal care composition according to any preceding claim, wherein the non-sulfate anionic surfactant comprises a taurate surfactant.

7. The personal care composition of claim 6, wherein the taurate surfactant has an aliphatic carbon chain of 8 to 21 carbons.

8. The personal care composition of claim 6 or claim 7, wherein the taurate surfactant comprises sodium methyl oleyl taurate, sodium methyl cocoyl taurate, or a combination thereof.

9. A personal care composition according to any preceding claim, wherein the nonionic surfactant comprises a glucoside surfactant.

10. The oral care composition of claim 9, wherein the glucoside surfactant is selected from the group consisting of lauryl glucoside, lauroyl ethyl glucoside, myristoyl ethyl glucoside, oleoyl ethyl glucoside, and combinations of two or more thereof.

11. A personal care composition according to any preceding claim, wherein the amphoteric surfactant is selected from betaine surfactants.

12. The personal care composition of claim 11, wherein the betaine surfactant comprises cocamidopropyl betaine.

13. The personal care composition of any preceding claim, wherein the polyol is a humectant selected from glycols, glycerin, and combinations of two or more thereof.

14. The personal care composition of any preceding claim, wherein the polyol is present in an amount from about 1% to about 30% by weight.

15. The personal care composition according to any preceding claim, wherein the personal care composition is substantially free of thickeners or contains no thickeners.

16. The personal care composition of any preceding claim, wherein the non-sulfate anionic surfactant is present in an amount from about 0.3% to about 10% by weight.

17. The personal care composition of any preceding claim, wherein the nonionic surfactant is present in an amount from about 2% to about 12% by weight.

18. The personal care composition of any preceding claim, wherein the amphoteric surfactant is present in an amount from about 1% to about 11% by weight.

19. A personal care composition comprising: A surfactant system, comprising: (i) taurate surfactant, (ii) a glucoside surfactant, and (iii) betaine surfactants; and from about 1% to about 30% by weight of a polyol, The personal care composition is free of sulfate-based anionic surfactants and has a natural origin index of about 90% or greater based on ISO Standard 16128, wherein all weight percentages are based on the total weight of the personal care composition.

20. The personal care composition of claim 19, wherein the weight ratio of the glucoside surfactant to the betaine surfactant is from about 1.5:1 to about 3.5:1, preferably from about 2:1 to about 3:1.

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