COSMETIC FORMULATION TO PREVENT THE SIGNS OF ENDOGENOUS AND / OR EXOGENOUS SKIN AGING

Abstract

Several examples presented relate to a cosmetic formulation containing less than approximately 0.6% by weight of gelling agent, but which maintains a minimum viscosity of at least 2000 cPs and is stable for up to four weeks after manufacture. The present invention relates to a formulation having a gelling agent comprising both a polyacrylate and xanthan gum, an emulsifier capable of forming a water-in-oil formulation, one or more skin-conditioning agents configured to treat a user's skin, and one or more solvents.

Description

Title of the invention: COSMETIC FORMULATION CONTEXT

[0001] Cosmetic formulations can be used to provide a variety of beneficial effects to a user. Often, the beneficial effect is provided by an active component. The ability to increase the diversity and quantity of active components can enhance the usefulness of the cosmetic formulation.

[0002] The cosmetics industry is increasingly focused on skincare products and formulations. Various skincare products have been developed to address issues such as skin aging, wrinkles, loss of elasticity, dryness, dullness, and other problems. In particular, face and skin masks are increasingly used in skin treatment for the purpose of preserving facial health and appearance. Summary of the invention

[0003] In one example, a cosmetic formulation comprises: a gelling agent including sodium polyacrylate and xanthan gum, wherein the gelling agent represents less than approximately 0.8% by weight of the total formulation; an emulsifier capable of forming a water-in-oil formulation; one or more skin-conditioning agents configured to treat a user's skin; and one or more solvents. The formulation has a minimum viscosity of approximately 2000 cPs 24 hours after manufacture. The formulation is stable for a minimum of 8 weeks after continuous exposure to a temperature in the range of approximately 1°C to approximately 45°C. DETAILED DESCRIPTION

[0004] Reference will now be made in detail to certain embodiments of the disclosed object. While the disclosed object will be described in conjunction with the listed claims, it will be understood that the disclosed object illustrated by way of example is not intended to limit the claims to the disclosed object.

[0005] Throughout this document, values ​​expressed in a range format shall be interpreted flexibly as including not only the numeric values ​​explicitly stated as range limits, but also all individual numeric values ​​or subranges within that range as if each numeric value and subrange were explicitly stated. By way of example, a range of "about 0.1% to about 5%" or "about 0.1% to 5%" shall be interpreted as including not only about 0.1% to about 5%, but also individual values ​​(e.g., 1%, 2%, 3%, and 4%) and sub-ranges (e.g., 0.1% to 0.5%; 1.1% to 2.2%; 3.3% to 4.4%) within the specified range. The phrase "approximately X to Y" has the same meaning as "approximately X to approximately Y," unless otherwise specified. Similarly, the phrase "approximately X, Y, or approximately Z" has the same meaning as "approximately X, approximately Y, or approximately Z," unless otherwise specified.

[0006] In this document, the terms "a," "an," or "the" are used to include one or more than one, unless the context clearly indicates otherwise. The term "or" is used to refer to a non-exclusive "or" unless otherwise indicated. The statement "at least one of A and B" or "at least one of A or B" has the same meaning as "A, B, or A and B." Furthermore, it should be understood that phraseology or terminology used herein, and not otherwise defined, is used solely for descriptive purposes and not for limitation. Any use of section headings is intended to aid in reading the document and should not be construed as restrictive; information relevant to a section heading may appear within or outside that particular section.

[0007] In the processes described herein, the acts may be performed in any order without departing from the principles of the invention, except where a temporal or operational sequence is explicitly stated. Furthermore, specified acts may be performed simultaneously unless the explicit claim language states that they are performed separately. By way of example, a claimed action of doing X and a claimed action of doing Y may be carried out simultaneously in a single operation, and the resulting process will fall within the literal scope of the claimed process.

[0008] The term "approximately" as used herein may permit a degree of variability of a value or range, for example, to within 10%, 5%, or 1% of a stated value or stated limit of a range, and includes the exact stated value or range.

[0009] The term "substantially" as used herein refers to a majority, or substantially, as in at least about 50%; 60%; 70%; 80%; 90%; 95%; 96%; 97%; 98%; 99%; 99.5%; 99.9%; 99.99%; or at least about 99.999% or more; or 100%. The term "substantially free of" as used herein may mean not having, or having an insignificant amount of, such that the quantity of matter present does not affect the material properties of the composition comprising the matter, such that about 0% by weight to about 5% by weight of the composition is the matter, or about 0% by weight to about 1% by weight, or about 5% by weight or less, or an amount less than or equal to about 4.5% by weight; 4; 3.5; 3; 2.5; 2; 1.5; 1; 0.9; 0.8; 0.7; 0.6; 0.5; 0.4; 0.3; 0.2; 0.1; 0.01; or about 0.001% by weight or less, or about 0% by weight.

[0010] Cosmetic formulation properties

[0011] The present invention relates to cosmetic or dermopharmaceutical compositions for the care of the skin, mucous membranes, and hair, and in some examples for preventing signs of endogenous and / or exogenous aging. In one example, this disclosure provides a consumer face.

[0012] The formulation comprises two polymer components, sodium polyacrylates and xanthan gum, in quantities that ensure sufficient formula stability but a desirablely low viscosity, along with an emulsifier, among other components. This allows the formulation to have both a beneficial viscosity and a fine-grained effect, while remaining relatively stable. The cosmetic formulation described herein may be capable of having one or more beneficial effects on a user's skin.

[0013] A specific example of a cosmetic formulation according to the present invention is provided below in Table 1. [Table 1]

[0014] [Tables 1] Component Quantity approx. (% by weight) Solvent Water 80 to 85 Gelling Agent Sodium Polyacrylate 0.5 to 0.7 Xanthan Gum 0.05 to 0.2 Emulsifier Potassium Cetyl Phosphate 0.4 to 0.6 Active Ingredients Bamboo Extract Thermus thermophillus Ferment Phellodendron amurense Bark Extract Alpha-Glucan Oligosaccharide Kombucha Sodium Hyaluronate Adenosine 3.0 to 3.9 Skin Conditioning Agents Humectants, Emollients, and Others 9 to 15 Preservatives 0.3 to 0.5 Fragrance 0.6

[0015] Table 1. Example of formulation.

[0016] Various applications described herein relate to a cosmetic composition that can be used as a topical composition for the skin. For example, the cosmetic formulation may be in the form of a face cream or serum, or a face mask. The cosmetic formulation can be used on a variety of skin types and users. Examples of uses for the cosmetic formulation include reducing fine lines, improving skin firmness, evening skin tone, strengthening the skin barrier, hydrating the skin, enhancing the skin's natural radiance, or a combination thereof.

[0017] The cosmetic formulation is in the form of an emulsion. The emulsion is typically an oil-in-water emulsion. In addition to the cosmetic formulation's ability to preserve skin hydration, the cosmetic formulation exhibits additional beneficial properties.

[0018] For example, the cosmetic formulation exhibits commercially acceptable stability. The cosmetic formulation is considered stable in the absence of phase separation. For example, the cosmetic formulation demonstrates stability for a minimum of 8 weeks after continuous exposure to temperatures in the range of approximately 1°C to approximately 50°C, approximately 20°C to approximately 45°C, or below, equal to, or above approximately 30°C, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, or approximately 50°C. Thus, the cosmetic formulation can be stored for an extended period and be usable. The disclosed stability may be related to the ratios between the thickener and the stabilizer as described herein.

[0019] Furthermore, the viscosity of the cosmetic formulation can be regulated and remain within an appropriate range. For example, the viscosity of the cosmetic formulation measured 24 hours after manufacture is in the range of approximately 2500 cPs to approximately 3500 cPs, or approximately 2700 cPs to approximately 3300 cPs, or approximately 3000 cPs. The viscosity is measured with a Brookfield RVT 3 / 20 apparatus at a temperature of 25 °C. The viscosity of the cosmetic formulation is such that the composition can be spread, but without running or dispersing too rapidly. Moreover, confirmation that the viscosity remains within the aforementioned range after 2 months demonstrates that the viscosity is stable and does not rapidly fall above or below the range. The viscosity can be regulated in part by the ratios between thickener and stabilizer disclosed herein.

[0020] Furthermore, the stability and viscosity of the cosmetic formulation are beneficial, as is its transparency, or light-transmitting property. The formulation, when applied, therefore has a beneficial effect on the skin.

[0021] The cosmetic formulation is also capable of maintaining an acceptable pH. By For example, when measured after manufacturing, the pH of the composition may be within a range of approximately 5.5 to approximately 6.5; approximately 5.6 to approximately 6.4; approximately 5.7 to approximately 6.3; approximately 5.8 to approximately 6.2; approximately 5.9 to approximately 6.1; or approximately 6.0. The pH of the cosmetic formulation can significantly affect its performance and stability. Therefore, the ability of the cosmetic formulation to maintain an acceptable pH for a sufficient period improves its potential to be a commercially viable product. The pH ranges described here contribute to obtaining the disclosed thickener-to-stabilizer ratios.

[0022] Cosmetic formulation

[0023] The aforementioned properties result from the constituents of the cosmetic formulation. Although not limited to, the cosmetic formulation includes a gelling agent comprising two polymers, an emulsifier, solvents, and an active or "skin conditioning" mixture, among other optional components.

[0024] Gelling agent

[0025] The cosmetic formulation comprises a gelling agent (e.g., a thickener) consisting of two polymers: polyacrylates and xanthan gum. The polymers are supplied in specific quantities to allow maximum stability and beneficial viscosity while maintaining transparency in the formulation and a reduced overall polymer content.

[0026] The total amount of polymers in the formulation (for example, the total weight % of the gelling agent mixture) can remain relatively low, while still allowing for beneficial viscosity and stability. For example, the total amount of gelling agent can be less than approximately 0.9% by weight, less than approximately 0.7% by weight, less than approximately 0.6% by weight, or less than approximately 0.5% by weight of the total formulation.

[0027] The gelling agent may comprise two polymers, the first being a sodium polyacrylate. The sodium acrylate copolymer is a sodium salt of a polymer consisting of acrylic acid, methacrylic acid, or one of their simple esters. Acrylates are a family of polymers that are a type of vinyl polymer. They are synthetic chemicals used in the manufacture of plastics, paint formulations, and other products. An acrylate copolymer generally refers to copolymers of two or more monomers consisting of acrylic acid, methacrylic acid, or one of their simple esters.Sodium acrylate copolymer is also referred to as acrylamide / sodium acrylate copolymer; 2-propenamide polymer with 2-propenoic acid sodium salt; 2-propenoic acid sodium salt polymer with 2-propenamide; 2-propenamide-2-propenoate sodium copolymer; acrylamide sodium acrylate polymer; acrylamide sodium acrylate copolymer.

[0028] Sodium polyacrylate can be supplied in an amount of approximately 0.2% in The gelling agent may contain approximately 0.6% by weight of the formulation, approximately 0.25% by weight, approximately 0.35% by weight of the formulation, or approximately 0.3% by weight of the formulation. The gelling agent may contain two polymers, the second being xanthan gum. Xanthan gum is a polysaccharide that is an effective thickening agent, emulsifier, and stabilizer.

[0029] Xanthan gum can be supplied in an amount of about 0.1% by weight to about 0.2% by weight of the formulation, or about 0.15% by weight of the formulation.

[0030] Additional gelling agents, thickeners, and polymers may be used. For example, the gelling agent may include any number of additional suitable thickeners to help achieve the desired viscosity values.

[0031] Together, the polymers in the gelling agent may represent less than approximately 0.9% by weight of the formulation. In the example given here, polyacrylate and xanthan gum are supplied in a ratio of approximately 6:1 in the formulation.

[0032] Emulsifier

[0033] The emulsifier may comprise any number of components capable of forming the water-in-oil composition. In one example, the emulsifier may be potassium cetyl phosphate. This is the potassium salt of a mixture of esters of phosphoric acid and cetyl alcohol, a non-irritating fatty alcohol, which can be used as a stabilizer and emulsifier. The emulsifier may be in the range of approximately 0.1% by weight to approximately 1.0% by weight of the formula, approximately 0.4% by weight to approximately 0.8% by weight of the composition, or approximately 0.5% by weight of the composition.

[0034] Emulsifiers commonly used in the compositions of the present invention include anionic, nonionic, and cationic emulsifiers. See, for example, Encyclopedia of Chemical Technology, KIRK-OTHMER, Volume 22, pages 333 to 432, 3rd edition, 1979, Wiley, for the definition of the properties and (emulsifying) functions of emulsifiers, in particular pages 347 to 377 of that publication concerning anionic and nonionic emulsifiers.Examples of useful emulsifiers in the formula of the invention include, as nonionic emulsifiers, fatty acids, fatty alcohols, polyethoxylated fatty alcohols, or polyglycerolized fatty alcohols, such as polyethoxylated stearyl alcohols or cetostearyl alcohols, fatty acid and sucrose esters, and alkyl esters of glucose, in particular polyoxyethylenated Ci-C6 alkyl fatty glucose esters; and, as anionic emulsifiers, Ci6-C3o fatty acids neutralized by amines, ammonia, or alkali metal salts thereof. Examples of cationic emulsifiers include quaternary amines, amine oxides, and amines, for example, alkylamines, alkylimidazolines, and ethoxylated amines. quaternary compounds and quaternized esters. Cationic emulsifiers can also have a conditioning effect. A particularly useful mixture of emulsifiers is a mixture of AB IL EM 90 and sorbitan olivate. Additional examples of emulsifiers include sodium stearyl glutamate; a mixture of C12-16 alcohols, palmitic acid, and hydrogenated lecithin; hydrogenated coco-glycerides; a mixture of polyglyceryl-6 stearate and polyglyceryl-6 behenate; glyceryl citrate oleate; a mixture of arachidyl alcohol, behenyl alcohol, and arachidyl glucoside; a mixture of ethylhexyl olivate, sodium acrylate copolymer, and polyglyceryl-4 olivate; a mixture of PEG-100 and glyceryl stearate; glyceryl stearate; PEG-2 stearate; or a mixture thereof. An alternative emulsifier may include PEG-40 stearate.PEG-40 stearate is a synthetic polymer composed of PEG (polyethylene glycol) and stearic acid, a natural fatty acid. It may also be referred to as MACROGOL STEARATE 2000, POLYETHYLENE GLYCOL MONOSTEARATE 2000, POLYOXYETHYLENE MONOSTEARATE (40), POLYOXYL STEARATE 40 and STEARETHATE 40.

[0035] The emulsifier is present in the oily or aqueous phase of the emulsion and the gelling agent is in the aqueous phase of the emulsion.

[0036] Active agents and skin conditioning agents

[0037] The formulation may include one or more active ingredients, which may also act as skin-conditioning agents. The active agents comprise a mixture of components that act together on the user's skin. Specifically, the active agents may have the function of reducing the appearance of wrinkles, moisturizing the skin, or similar. For example, the active agents may include bamboo extract, Thermus thermophillus ferment, Phellodendron amurense bark extract, alpha-glucan oligosaccharide, kombucha (saccharomyces / xylinum / black tea ferment), sodium hyaluronate, and adenosine.

[0038] Bamboo extract (Phyllosachys Bambusoides extract) can be used as a toner for the face and body. The bamboo extract can be in a range of approximately 0.80% by weight to approximately 1.20% by weight of the cosmetic composition, approximately 0.90% by weight to approximately 1.10% by weight, or approximately 1.0% by weight.

[0039] Thermus thermophillus ferment is the natural result of the fermentation of Thermus thermophillus, a bacterium that can live thousands of feet below the ocean surface. On the skin, this special ferment can help protect the skin's supporting structure from destructive enzymes and help maintain a soft touch Thermus thermophillus ferment is firm. It also has antioxidant properties, particularly against undesirable molecules formed from the breakdown of fatty acids. The radical scavenging capacity of Thermus thermophillus has been compared to powerful antioxidants in the skin, such as superoxide dismutase. It is a very good source of alpha-galactosidase, an enzyme that promotes the regeneration of glycoproteins, which the skin needs to look healthier. Thermus thermophillus ferment can be used, for example, in a mixture with glycerin. The mixture of Thermus thermophillus ferment and glycerin can be in the range of approximately 0.50% by weight to approximately 1.50% by weight of the cosmetic composition, approximately 0.80% by weight to approximately 1.20% by weight, or approximately 1.0% by weight.

[0040] Phellodendron amurense bark extract may have anti-inflammatory, antioxidant, and potentially chemopreventive and antineoplastic activities. Phellodendron amurense bark extract contains certain isoquinoline alkaloids, flavone glycosides, and phenolic compounds. Phellodendron amurense bark extract may be supplied mixed with water and butylene glycol in an amount of approximately 0.40% by weight to approximately 0.80% by weight of the cosmetic composition, approximately 0.50% by weight to approximately 0.70% by weight, or approximately 0.6% by weight.

[0041] α-Glucan oligosaccharide is a natural prebiotic that helps maintain a healthy microbiome. When the skin's microbiome (its invisible barrier) is disrupted, the population of harmful bacteria can proliferate because it is not regulated by the healthy flora on the surface. This has the potential to trigger signs of skin irritation and sensitization. α-Glucan oligosaccharide also has antioxidant properties, helping to reduce the visible effects of oxidative stress on the skin. α-Glucan oligosaccharide can be in the range of approximately 0.3% by weight to approximately 0.7% by weight of the cosmetic composition, approximately 0.4% by weight to approximately 0.6% by weight, or approximately 0.5% by weight.

[0042] Kombucha (also known as tea mushroom or Manchurian mushroom; Latin name Medusomyces gisevii, e.g., saccharomyces / xylinum / black tea ferment) is a sweetened, slightly effervescent, fermented beverage made from black tea. For example, kombucha may be used in formulations, particularly because it contains skin-conditioning agents such as saccharomyces ferment, xylinum, black tea, and glycerin, among other components. In one example formulation, kombucha is present in a range of approximately 0.3% by weight to approximately 0.8% by weight of the cosmetic composition, approximately 0.4% by weight to approximately 0.6% by weight, or approximately 0.5% by weight.

[0043] Sodium hyaluronate is a derivative of hyaluronic acid. It has many uses and is a humectant, meaning it attracts moisture. Hyaluronate Sodium may be used in a range of approximately 0.08% by weight to approximately 0.12% by weight, approximately 0.09% by weight to approximately 0.11% by weight, or approximately 0.1% by weight. Adenosine may be used as a skin conditioning agent and an active component. Adenosine may be used in a range of approximately 0.03% by weight to approximately 0.05% by weight, or approximately 0.04% by weight.

[0044] The active agents may be located in the aqueous phase. The formulation may further comprise one or more other skin conditioning agents, such as emollients, humectants, other conditioning agents, and combinations thereof.

[0045] Additional skin-conditioning agents may include emollients and humectants. Emollients may have the quality of softening or smoothing the skin. Examples of emollients may include caprylic / capric triglyceride, coco-caprate / caprylate, caprylyl glycol, or combinations thereof. Humectants may help retain moisture in a formulation and hydrate the skin when applied. Examples of humectants may include glycerin and combinations thereof. Other skin-conditioning agents, such as occlusive agents, may be used, for example, dimethicone or meadowsweet seed oil.

[0046] A variety of other skin-conditioning agents may be included to achieve various skin-treatment effects. Additional examples of such skin-conditioning agents include lactic acid, hyaluronic acid, vitamin E, Saccharomyces / Xylinum / Black Tea ferment, diglucosyl gallic acid, adenosine, panthenol, dimethyl methoxy chromanol, alpha-glucan oligosaccharide, Thermus thermophillus ferment, hydrolyzed hyaluronic acid, caffeine, acetyl dipeptide-1 cetyl ester, glycerin, niacinamide, Swertia chirata extract, creatine, or a mixture thereof.

[0047] The total of the active and skin-conditioning agents may be in a range of about 5% by weight to about 35% by weight of the cosmetic formula, about 20% by weight to about 30% by weight, less than, equal to, or greater than 15% by weight, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, or about 35% by weight.

[0048] The active ingredients and skin-conditioning agents may comprise any component or mixture of components to achieve a desired result. The gelling mixture mentioned above allows for a relatively high number of active ingredients and skin-conditioning agents. The formulation's ability to contain a high number of active ingredients and skin-conditioning agents can enhance its efficacy.

[0049] Solvents

[0050] The formulation may further comprise one or more solvents. For example, the formulation may comprise water, for example for the aqueous phase, which may form an emulsion with the oil-based phase. Other solvents may be used as desired, such as 1,2-hexanediol or butylene glycol, among other organic solvents.

[0051] Other components

[0052] The formulas in this document may contain a variety of other optional components suitable for making these compositions more cosmetically or aesthetically acceptable or for providing additional benefits in use. For example, the formulation may also include a variety of other components, such as pH regulators, preservatives, and fragrance. For example, a suitable pH regulator may include sodium hydroxide. For example, potential preservatives may include chlorphenesin, potassium sorbate, sodium benzoate, or other components.

[0053] Such conventional potential ingredients are well known to those skilled in the art. They are all cosmetically acceptable ingredients, such as those listed in CTFA International Cosmetic Ingredient Dictionary and Handbook, 7th edition, edited by Wenninger and McEwen (The Cosmetic, Toiletry, and Fragrance Association, Inc., Washington, DC, 1997). As used here, the term "cosmetically acceptable" means a material (e.g., a compound or composition) that is suitable for use in contact with skin, hair, or another suitable substrate.

[0054] Preparation process

[0055] The cosmetic formulations described herein can be produced by a number of suitable processes. The cosmetic formulation can be in the form of an emulsion, having an aqueous phase and an oily phase. The aqueous phase, which can be mixed, may include solvents, active agents, and some skin-conditioning agents. The oily phase may include the emulsifier, in addition to other skin-conditioning agents. The aqueous and oily phases can be mixed together for a certain period of time to form the emulsified cosmetic composition. Additional components, such as fragrance, can be added at the end. All the components can be agitated or otherwise mixed to form the final cosmetic formulation emulsion.

[0056] Method of use

[0057] The cosmetic formulation can be applied in any suitable manner. For example, the cosmetic formulation can be applied topically to a user's skin. In some cases, the cosmetic composition can be applied topically by hand, with an applicator, or both. Examples Applicators may include brushes, pads, sponges, or similar items. In some cases, the cosmetic formulation may be used as a serum, cream, or mask. In some cases, a silicone mask may be used for application.

[0058] The cosmetic formulation can be applied once a day (for example, once every 24 hours) or several times a day. For example, the cosmetic formula can be applied two times, three times, four times, and so on within a 24-hour period. Examples

[0059] Various examples of the present invention can be better understood by referring to the following illustrative examples. The present invention is not limited to the examples given here.

[0060] A sample formulation was prepared according to Table 2 below:

[0061] [Table 2]

[0062] [Tables2] Trade Name Supplier % of raw material Water Purified COTY 82.16% GLYCERINE G995E AMI 5% Dub 5545 14012 MB STEARINERIE DUBOIS 3% RBD Meadowfoam Oil KEYSER & MACKAY 2% Cetiol LC (30527919) BASF 1% Original bamboo extract GATTEFOSSE 1% VENUCEANE SP SEDERMA 1% Cosmedia SP (30531250) BASF OUBAKU LIQUID B Safic-Alcan LIEN DE LIERRE NABI 297136 FIRMENICH AMPHISOL K DSM NUTRITIONAL PRODUCTS BioEcolia (AC033) SOLABIA NG KOMBUCHKA SEDERMA Xiameter PMX-200 Silicone Fluid lOOcs DOW Elastab CPN (30531050) / DEKA CP 266960 BASF / IMCD SymDiol 68 SYMRISE Sensiva SC 50 ASHLAND Trade Name Supplier Rhodicare S SACI CristalHyal GIVAUDAN Adenosine (A051) DKSH

[0063] Table 2. Formulation sample.

[0064] The components of this formulation sample were mixed together. This sample was tested for viscosity, pH and stability as described below in Example 1 and Example 2.

[0065] Example 1, Viscosity and pH of the formulation sample

[0066] The sample summarized in Table 3 was tested for viscosity. Viscosity was measured using a Brookfield RVT E / 20 apparatus at a temperature of 25 °C, with spindle 3, a speed of 20 rpm, and a multiplier of 50, with the results shown in Table 3. The samples were tested with standard pH strips to determine the pH, also summarized in Table 3.

[0067] [Table 3]

[0068] [Tables3] Test No. Viscosity (cps) pH 1 2325 5.96 2 3100 5.90 3 2910 5.92 4 2950 5.96 5 2800 5.90 6 2850 5.92 7 2875 5.81 8 2795 6.02 9 2750 5.99 10 2815 5.96 11 2820 5.79

[0069] Table 3. Viscosity and pH tests

[0070] Overall, the sample performed well in terms of both viscosity and pH, despite a lower overall amount of gelling agent in the formulation.

[0071] Example 2, Stability of the formulation sample

[0072] The sample was manually analyzed for stability, color, and odor 24 hours after manufacture, and at subsequent weeks and months after manufacture. The results are summarized below in Table 4:

[0073] [Table 4]

[0074] [Tables4] In the refrigerator (4°C) At room temperature 25°C 37°C 45°C 50°C Color 4 weeks Successful 4 weeks Successful 2 months Successful 3 months Successful 4 weeks Successful Odor — 4 weeks Successful 4 weeks Successful 2 months Successful 3 months Successful Stability — 4 weeks Successful 4 weeks Successful 2 months Successful 3 months Successful

[0075] Table 4. Manual examination of the sample

[0076] As can be seen in Table 4, the formulation sample showed good stability over a temperature range, from refrigerator temperature (1 to 4 °C) to room temperature (20 to 22 °C) up to 50 °C immediately after manufacture and up to four weeks after manufacture. The formulation retained good stability up to approximately 50 °C.

[0077] Additional examples.

[0078] The following examples are provided, their numbering not to be interpreted as designating levels of importance:

[0079] Example 1 comprises a cosmetic formulation including: a gelling agent comprising sodium polyacrylate and xanthan gum, in which the gelling agent represents less than about 0.8% by weight of the total formulation; an emulsifier capable of forming a water-in-oil formulation; one or more active agents configured to treat a user's skin; and one or more solvents; wherein the formulation has a minimum viscosity of about 2500 cPs 24 hours after manufacture, and wherein the formulation is stable for a minimum of 4 weeks after continuous exposure to a temperature in the range of about 1°C to about 50°C.

[0080] Example 2 may include Example 1, in which sodium polyacrylate constitutes approximately 0.2% by weight to approximately 0.7% by weight of the formulation.

[0081] Example 3 may include any of Examples 1 and 2, in which sodium polyacrylate constitutes approximately 0.3% by weight to approximately 0.6% by weight of the formulation.

[0082] Example 4 may include any of Examples 1 to 3, in which sodium polyacrylate constitutes approximately 0.6% by weight of the formulation.

[0083] Example 5 may include any of Examples 1-1-4, in which xanthan gum constitutes approximately 0.05% by weight to approximately 0.15% by weight of the formulation.

[0084] Example 6 may include any of Examples 1 to 5, in which xanthan gum constitutes approximately 0.1% by weight of the formulation.

[0085] Example 7 may include any of Examples 1-1, in which sodium polyacrylate and xanthan gum are provided in a ratio of approximately 6:1 in the formulation.

[0086] Example 8 may include any of Examples 1-1-7, in which the formulation has a minimum viscosity of about 3000 cPs.

[0087] Example 9 may include any of Examples 1 to 8, in which the formulation has a minimum viscosity of about 3500 cPs.

[0088] Example 10 may include any of Examples 1-1-9, wherein the formulation is stable for a minimum of 4 weeks after continuous exposure to a temperature in the range of about 25 °C to about 45 °C.

[0089] Example 11 may include any of Examples 1 to 10, wherein the formulation is stable for a minimum of 4 weeks after continuous exposure to a temperature of about 37°C.

[0090] Example 12 may include any of Examples 1-1-11, wherein the formulation is stable for a minimum of 8 weeks after continuous exposure to a temperature in the range of about 1 °C to about 50 °C.

[0091] Example 13 may include any of Examples 1 to 12, wherein the formulation is stable for a minimum of 8 weeks after continuous exposure to a temperature in the range of about 20 °C to about 45 °C.

[0092] Example 14 may include any of Examples 1-1-13, in which the emulsifier constitutes about 0.10 wt% to about 1.0 wt% of the formulation.

[0093] Example 15 may include any of Examples 1-1-14, in which the emulsifier comprises potassium cetyl phosphate.

[0094] Example 16 may include any of Examples 1-1-15, in which the active agents include bamboo extract, Thermus thermophillus ferment, Phellodendron amurense bark extract, alpha-glucan oligosaccharide, kombucha, sodium hyaluronate, adenosine and combinations thereof.

[0095] Example 17 may include any of Examples 1-1-16, further comprising one or more skin conditioning agents comprising caprylic / capric triglyceride, coco-caprylate / caparate, caprylyl glycol, glycerin or combinations thereof.

[0096] Example 18 may include any of Examples 1-1-17, further comprising one or more preservatives, buffers, perfumes, pigments or combinations thereof.

[0097] Example 19 includes a method for preparing the formulation of any one of claims 1 to 18, the method comprising mixing one or more solvents, emulsifier, gelling agent and one or more skin conditioning agents to form the cosmetic composition.

[0098] Example 20 includes a skin treatment method, the method comprising the topical application of a formulation of any one of claims 1 to 19 to the skin of a person, wherein the formulation lightens the skin.

[0099] The terms and expressions used are descriptive and not limiting, and their use is in no way intended to exclude any equivalence of the features presented and described or parts thereof. However, it is understood that various modifications are possible within the scope of the examples of the present invention. Thus, it should be understood that, although the present invention has been specifically presented through specific embodiments and optional features, a person skilled in the art may make modifications and variations to the concepts disclosed herein, and such modifications and variations are considered to be included within the scope of the examples of the present invention.

Claims

Demands

1. Cosmetic formulation comprising: a gelling agent comprising sodium polyacrylate and xanthan gum, wherein the gelling agent constitutes less than about 0.9% by weight of the total formulation; 0.1% to 1% by weight of the formulation of emulsifier, the emulsifier being potassium cetyl phosphate; one or more active agents configured to treat a user's skin; and one or more solvents; wherein the formulation has a minimum viscosity of about 2500 cPs 24 hours after manufacture, and wherein the formulation is stable for a minimum of 4 weeks after continuous exposure to a temperature in the range of about 1°C to about 50°C.

2. Formulation according to claim 1, wherein sodium polyacrylate constitutes approximately 0.2% by weight to approximately 0.7% by weight of the formulation.

3. Formulation according to claim 2, wherein sodium polyacrylate constitutes approximately 0.3% by weight to approximately 0.6% by weight of the formulation.

4. Formulation according to claim 3, wherein sodium polyacrylate constitutes approximately 0.6% by weight of the formulation.

5. Formulation according to any one of claims 1 to 4, wherein xanthan gum constitutes approximately 0.05% by weight to approximately 0.15% by weight of the formulation.

6. Formulation according to claim 5, wherein xanthan gum constitutes approximately 0.1% by weight of the formulation.

7. Formulation according to claim 1, wherein sodium polyacrylate and xanthan gum are provided in a ratio of approximately 6:1 in the formulation.

8. Formulation according to any one of claims 1 to 7, wherein the formulation has a minimum viscosity of about 3000 cPs.

9. Formulation according to claim 8, wherein the formulation has a minimum viscosity of about 3500 cPs.

10. Formulation according to any one of claims 1 to 9, wherein the formulation is stable for a minimum duration of 4 weeks after continuous exposure to a temperature in the range of approximately 25°C to approximately 45°C.

11. Formulation according to claim 10, wherein the formulation is stable for a minimum of 4 weeks after continuous exposure to a temperature of about 37 °C.

12. Formulation according to any one of claims 1 to 11, wherein the formulation is stable for a minimum of 8 weeks after continuous exposure to a temperature in the range of about 1 °C to about 50 °C.

13. Formulation according to claim 12, wherein the formulation is stable for a minimum of 8 weeks after continuous exposure to a temperature in the range of about 20 °C to about 45 °C.

14. Formulation according to any one of claims 1 to 13, wherein the active agents include bamboo extract, Thermus thermophillus ferment, Phellodendron amurense bark extract, alpha-glucan oligosaccharide, saccharomyces / xylinum / black tea ferment, sodium hyaluronate, adenosine and combinations thereof.

15. Formulation according to any one of claims 1 to 14, further comprising one or more skin conditioning agents including caprylic / capric triglyceride, coco-caprylate / caparate, caprylyl glycol, glycerin or combinations thereof.

16. Formulation according to any one of claims 1 to 15, further comprising one or more preservatives, buffers, perfumes, pigments or combinations thereof.

17. A method for preparing the formulation of any one of claims 1 to 16, the method comprising mixing one or more solvents, emulsifier, gelling agent and one or more skin conditioning agents to form the cosmetic composition.

18. A skin treatment method, the method comprising the topical application of a formulation of any one of claims 1 to 17 to the skin of a person, wherein the formulation moisturizes the skin.