MONOPHASIC MICELLAR COSMETIC CLEANSING COMPOSITION

Abstract

MONOPHASIC MICELLAR COSMETIC CLEANSING COMPOSITION A cosmetic cleansing composition includes a monophasic micellar water that includes at least one amphoteric surfactant present at more than approximately 0.05% by weight, at least one cationic polymer including chitosan, polylysine, guar hydroxypropyltrimonium chloride, or combinations thereof present at more than approximately 0.01% by weight, relative to the weight of the composition, and an aqueous carrier that includes at least water. The cosmetic cleansing composition has a pH in the range of approximately 4 to approximately 8 and may be essentially free or free of PEG / POE surfactants. When applied to remove makeup from keratinous tissue, the cosmetic cleansing composition demonstrates effective cleansing of foundation and long-lasting lipstick. Figure for abbreviation: none

Description

Title of the invention: MONOPHASIC MICELLAR COSMETIC CLEANSING COMPOSITION FIELD OF THE INVENTION

[0001] The present disclosure relates to a skin care composition, in particular, a cosmetic cleansing composition in a micellar formulation. CONTEXT OF THE INVENTION

[0002] Single-phase micellar water as a gentle makeup remover is popular among consumers because it provides hydration and a refreshing feeling after use. The challenge with single-phase micellar water is a relatively low removal efficiency of foundation and mascara, especially long-lasting makeup, compared to oil-based makeup removers. Providing an aesthetically pleasing micellar cleansing composition that offers robust efficacy is therefore challenging. Products with alternative cleansing components, including polyethylene glycol surfactants, offer an alternative to oil-based makeup removers, but can be harsh on the skin.

[0003] The inventors have formulated an innovative technology that overcomes the shortcomings of the prior art to improve the performance of the micellar water cleanser by incorporating a naturally derived cationic polymer, for example, but not limited to, chitosan, polylysine, cationic guar, as well as an amphoteric surfactant. By using naturally derived ingredients, the composition is free of ingredients that are harsh or otherwise undesirable or unsustainable and provides comparable or improved efficacy compared to less natural or more harsh compositions. The cosmetic cleansing composition maintains upon application a transparent appearance of micellar water with a refreshing sensation after use and provides increased removal efficacy and hydration compared to current product solutions.In some embodiments, the inventive composition is free of polyethylene glycol / polyethylene oxide (PEG / PEO) surfactants. BRIEF SUMMARY OF THE INVENTION

[0004] In various embodiments, there is provided a cosmetic cleansing composition that includes a single-phase micellar water comprising: a. at least one amphoteric surfactant present in an amount that is greater than about 0.05%, by weight, based on the weight of the composition; b. at least one cationic polymer present in an amount that is greater than about 0.01%, by weight, based on the weight of the composition; and c. an aqueous carrier comprising at least water.

[0005] In some embodiments, the cosmetic cleansing composition is essentially free of PEG / POE surfactants.

[0006] In some embodiments, the at least one amphoteric surfactant is present in the cosmetic cleansing composition from about 0.05% to about 10%, by weight, based on the total weight of the cosmetic cleansing composition.

[0007] In some embodiments, the at least one amphoteric surfactant is selected from the group consisting of cocamidopropyl hydroxysultaine, coco betaine, cocami-dopropyl betaine, sodium lauroamphoacetate, disodium cocoamphodiacetate and combinations thereof.

[0008] In some embodiments, the at least one amphoteric surfactant comprises (i) cocamidopropyl hydroxysultaine present in the cosmetic cleansing composition in a range of about 0.05% to about 10%, (ii) coco-betaine present in the cosmetic cleansing composition in a range of about 0.05% to about 10%, or combinations thereof, all amounts by weight, based on the total weight of the cosmetic cleansing composition.

[0009] In some embodiments, each of the at least one cationic polymer is present in an amount ranging from about 0.01% to about 5% by weight, based on the total weight of the cosmetic cleansing composition.

[0010] In some embodiments, the at least one cationic polymer is selected from the group consisting of chitosan, polylysine, guar hydroxypropyltrimonium chloride, dextran hydroxypropyltrimonium chloride, and combinations thereof.

[0011] In some embodiments, the at least one cationic polymer is selected from (i) chitosan present in the cosmetic cleansing composition in a range of about 0.01% to about 5%, (ii) polylysine present in the cosmetic cleansing composition in a range of about 0.01% to about 5%, (iii) guar hydroxypropyltrimonium chloride present in the cosmetic cleansing composition in a range of about 0.01% to about 5%, or combinations thereof, all amounts by weight, based on the total weight of the cosmetic cleansing composition.

[0012] In some embodiments, the at least one cationic polymer is selected from (i) chitosan present in the cosmetic cleansing composition in a range of about 0.05% to about 0.15%, (ii) polylysine present in the cosmetic cleansing composition in a range of about 0.05% to about 0.15%, (iii) guar hydroxypropyltrimonium chloride present in the cosmetic cleansing composition in a range of about 0.05% to about 0.15%, or combinations thereof, all amounts by weight, based on the total weight of the cosmetic cleansing composition.

[0013] In some embodiments, the at least one amphoteric surfactant comprises (i) cocamidopropyl hydroxysultaine present in the cosmetic cleansing composition in a range of about 0.5% to about 2.5%, (ii) coco-betaine present in the cosmetic cleansing composition in a range of about 0.1% to about 0.25%, or a combination thereof, and wherein each of the at least one cationic polymer is present in an amount of about 0.05% to about 2.5% by weight, based on the total weight of the cosmetic cleansing composition.

[0014] In some embodiments, the cosmetic cleansing composition is substantially free of PEG / POE surfactants selected from the group consisting of PEG-20 glyceryl triisostearate, PEG-7 glyceryl cocoate, PEG-20 methyl glucoside sesquistearate, PG-5 dioleate, PG-4 diisostearate, PG-10 isostearate, PEG-60 hydrogenated castor oil, PEG-8 stearate, PEG-8 isostearate, PEG-60 hydrogenated castor oil, PEG-150 laurate, PEG-150 distearate, PEG-150 pentaerythrityl tetrastearate, PEG-78 glyceryl cocoate, PEG-30 glyceryl cocoate, ceteareth-20, ceteth-10, ceteth-20, isoceteth-20, laureth-4, laureth-23, oleth-10, oleth-20, steareth-10, steareth-20, steareth-100 and steareth-21, PEG-20 glyceryl laurate, PEG-40 hydrogenated castor oil, poloxamer 184 (polyoxyethylene polyoxy-propylene glycol), and combinations thereof.

[0015] In some embodiments, the cosmetic cleansing composition also includes one or more co-emulsifiers comprising a polyglycerol ester selected from the group consisting of polyglyceryl-3 caprylate, polyglyceryl-3 cocoate, polyglyceryl-4 caprate, polyglyceryl-5 laurate, polyglyceryl-6 caprylate, and a combination thereof, and wherein the one or more co-emulsifiers are present in the cosmetic cleansing composition in a range of from about 0.05% to about 10%, by weight, based on the total weight of the cosmetic cleansing composition.

[0016] In some embodiments, the one or more co-emulsifiers comprise polyglyceryl-4 caprate present in the cosmetic cleansing composition in a range of about 0.4% to about 1.2%, based on the total weight of the cosmetic cleansing composition.

[0017] In some embodiments, the cosmetic cleansing composition also includes a water-based solvent or a combination of water-based solvents selected from the group consisting of glycerin, pentylene glycol, and a combination thereof.

[0018] In some embodiments, the composition has a pH in the range of about 4.0 to about 8.0.

[0019] In some embodiments, the cosmetic cleansing composition also includes at least one of hydroxyacetophenone, caprylyl glycol, chloride sodium, citric acid, tetrasodium glutamate diacetate, or a combination thereof.

[0020] In some embodiments, a cosmetic cleansing composition that includes a single-phase micellar water comprising: a. at least one amphoteric surfactant comprising (i) cocamidopropyl hydroxysultaine present in the cosmetic cleansing composition in a range of about 0.05% to about 10%, (ii) coco-betaine present in the cosmetic cleansing composition in a range of about 0.05% to about 10%, or combinations thereof; b. at least one cationic polymer selected from (i) chitosan present in the cosmetic cleansing composition in a range of about 0.01% to about 5%, (ii) polylysine present in the cosmetic cleansing composition in a range of about 0.01% to about 5%, (ii) guar hydroxypropyltrimonium chloride present in the cosmetic cleansing composition in a range of about 0.01% to about 5%, or combinations thereof; c. one or more co-emulsifiers are selected from polyglyceryl-4 caprate, glyceryl caprylate, or a combination thereof, and wherein the at least one co-emulsifier is present in the cosmetic cleansing composition in a range of about 0.05% to about 10%; d. an aqueous carrier comprising water and one or a combination of water-based solvents selected from the group consisting of glycerin and pentylene glycol; and e. at least one of hydroxyacetophenone, caprylyl glycol, sodium chloride, citric acid, tetrasodium glutamate diacetate, or combinations thereof, all amounts by weight, based on the total weight of the cosmetic cleansing composition, wherein the cosmetic cleansing composition excludes PEG / POE surfactants, and wherein the cosmetic cleansing composition has a pH in the range of about 4.0 to about 8.0.

[0021] In some embodiments, the at least one cationic polymer is selected from (i) chitosan present in the cosmetic cleansing composition in a range of about 0.05% to about 0.15%, (ii) polylysine present in the cosmetic cleansing composition in a range of about 0.05% to about 0.15%, (iii) guar hydroxypropyltrimonium chloride present in the cosmetic cleansing composition in a range of about 0.05% to about 0.15%, or combinations thereof, all amounts by weight, based on the total weight of the cosmetic cleansing composition.

[0022] In various embodiments, a cleaning composition is provided cosmetic which includes a single-phase micellar water comprising: a. at least one amphoteric surfactant present in an amount which is greater than about 0.05%, by weight, relative to the weight of the composition; b. at least one cationic polymer comprising chitosan, polylysine, guar hydroxypropyltrimonium chloride or combinations thereof, the at least one cationic polymer being present in an amount that is greater than about 0.01%, by weight, based on the weight of the composition; and c. an aqueous carrier comprising at least water,

[0023] all amounts by weight, based on the total weight of the cosmetic cleansing composition, wherein the cosmetic cleansing composition is essentially free of PEG / POE surfactants, and wherein the cosmetic cleansing composition has a pH of about 5, and wherein the cosmetic cleansing composition when applied to keratinous tissue demonstrates cleansing of long-lasting foundation and lipstick.

[0024] In some embodiments, the at least one amphoteric surfactant comprises (i) cocamidopropyl hydroxysultaine present in the cosmetic cleansing composition in a range of about 0.05% to about 10%, (ii) coco-betaine present in the cosmetic cleansing composition in a range of about 0.05% to about 10%, or combinations thereof, and wherein the cationic polymer is chitosan present in a range of about 0.01% to about 5%, the cosmetic cleansing composition comprising one or more co-emulsifiers, and one or a combination of water-based solvents.

[0025] In some embodiments, the one or more co-emulsifiers are selected from polyglyceryl-4 caprate, glyceryl caprylate, or a combination thereof present in the cosmetic cleansing composition in a range of about 0.05% to about 10%, and wherein the water-based solvent or combination of water-based solvents comprises glycerin and pentylene glycol.

[0026] In some embodiments, the cosmetic cleansing composition includes a mixture of solvents that include glycerin with one or more of pentylene glycol, caprylyl glycol, butylene glycol, triethyl citrate, propylene glycol, or a combination thereof, wherein each solvent is present in a range of about 1% to about 10%, by weight of the cosmetic cleansing composition.

[0027] In some embodiments, (a) the at least one cationic polymer is selected from chitosan, guar, or a combination thereof, the cosmetic cleansing composition including a water-soluble solvent mixture comprising glycerin present at about 1%, and pentylene glycol present at about 3%, or (b) the at least one cationic polymer is polylysine, the cleansing composition cosmetic including a mixture of solvents selected from the group consisting of (i) glycerin present at about 1%, pentylene glycol present at about 1.5% and caprylyl glycol present at about 0.5%, (ii) glycerin present at about 1%, butylene glycol present at about 3% and caprylyl glycol present at about 0.5%, (iii) glycerin present at about 1%, triethyl citrate present at about 2.5% and caprylyl glycol present at about 0.5%, (iv) glycerin present at about 1%, triethyl citrate present at about 3% and propylene glycol present at about 3%, and (v) a combination thereof.

[0028] According to some embodiments, the composition has a pH in a range of about 4.5 to about 5.5.

[0029] In some embodiments, the composition is essentially free of acrylate copolymer, anionic surfactants, sulfate and sulfonate surfactants, glycolipids, or combinations thereof.

[0030] It is to be understood that both the foregoing general description and the following detailed description are provided by way of example and explanation only, and are not restrictive of the invention. DETAILED DESCRIPTION OF THE INVENTION

[0031] In the various embodiments, the cosmetic cleansing composition is a micellar water essentially free of an oily phase. In certain embodiments, the foaming cleansing composition is a skin cleanser, a shampoo or a shower gel and in certain particular embodiments, the composition is a facial cleanser and / or a makeup remover.

[0032] The cosmetic cleansing composition includes a single-phase micellar water that includes at least one amphoteric surfactant present from greater than about 0.05%, by weight, at least one cationic polymer comprising chitosan, polylysine, guar hydroxypropyltrimonium chloride, or combinations thereof present from greater than about 0.01%, by weight, based on the weight of the composition and an aqueous carrier that includes at least water. The cosmetic cleansing composition is essentially free of PEG / POE surfactants, and has a pH in a range of from about 4 to about 8. When applied to keratinous tissue, the cosmetic cleansing composition demonstrates cleansing of foundation and long-lasting lipstick. The cosmetic cleansing composition in some embodiments is nature-based and formulated to be natural or all-natural.

[0033] The inventors demonstrated that by incorporating cationic polymer into a single-phase micellar water, an unexpected and significant improvement in removal efficiency was achieved compared to the current reference and samples without cationic polymer. Without wishing to make it a theory, it is proposed that the technology works as positively charged groups in the polycation promote electrostatic attraction with negatively charged groups in surfactants, i.e., the hydroxyl group in the polycation and the surfactant also have a strong hydrogen bond with each other. Therefore, the polycation attracts the surfactants to form aggregates / micelles on the cationic polymer chain. It is also proposed that the resulting polycation-surfactant association has a strong complex interaction with makeups via electroattraction, hydrogen bonding, and van der waals force, etc. Thus, it is proposed that the polycation serves as a delivery vehicle for the surfactant to absorb and remove makeup. When the cosmetic cleansing composition adsorbs on the makeup surface, it also slides the surfactants onto the makeup surface where the surfactants are condensed on the makeup surface, and then provides better removal.

[0034] Through expert evaluations of makeup removal efficacy, the cosmetic cleansing composition according to the disclosure demonstrated performance at the same level as or better than competing compositions in removing foundation and excels in removing eye and lip makeup.

[0035] An ex vivo evaluation of makeup removal demonstrates that the cosmetic cleansing composition performs significantly better than the commercial reference, and direct comparisons between the compositions with and without the cationic polymer demonstrate a significant effect of the cationic polymer compared to the baseline.

[0036] In the various embodiments, the cosmetic cleansing composition is suitable for application to keratinous tissue for cleansing, particularly for removing makeup. In some embodiments, the cosmetic cleansing composition is essentially free, free, or devoid of one or more oils, silicones, and film formers. In other embodiments, the cosmetic cleansing composition may comprise one or more of the ingredients comprising oils, silicone oils, silicone polymers, and film formers. In some embodiments, the cosmetic cleansing composition is free or essentially free of harsh chemicals and non-nature-based ingredients (silicones, alcohol, paraben, fragrance, sulfates).

[0037] The cosmetic cleansing composition may comprise, consist of, or consist essentially of the essential elements and limitations of the invention described herein, as well as any additional or optional ingredients, components, or limitations described herein or otherwise useful.

[0038] “Cleanser” or “cleaning composition” as used herein means and refers to to any cleaning composition used for application to keratinous tissue for one or more of skin cleansing, makeup removal and the like.

[0039] “Excluded Surfactant” means and designates excluded surfactants that have not been added as a component in the cosmetic cleansing composition. In some particular embodiments, the cosmetic cleansing composition is substantially free, free, or devoid of one or more PEG / PEO surfactants, sulfate / sulfonate surfactants, and anionic surfactants. Those skilled in the art will appreciate that a surfactant may be present in a composition via its presence in one or more of the formulation components; thus, in some embodiments, the cosmetic cleansing composition may be “substantially free” wherein a surfactant is present at a concentration that does not exceed 5% by weight, and in some cases is not present at more than 3% by weight, and in some cases is not present at more than 1% by weight, based on the weight of the cosmetic cleansing composition.In certain particular embodiments, "free" means that the cosmetic cleansing composition is free or specifically free of an excluded surfactant.Some specific, but not limited, examples of surfactants that are absent from the cosmetic cleansing composition include: PEG-20 glyceryl triisostearate, PEG-7 glyceryl cocoate, PEG-20 methylglucoside ses-quistearate, PG-5 dioleate, PG-4 diisostearate, PG-10 isostearate, PEG-60 hydrogenated castor oil, PEG-8 stearate, PEG-8 isostearate, PEG-60 hydrogenated castor oil, PEG-150 laurate, PEG-150 distearate, PEG-150 pentaerythrityl tetrastearate, PEG-78 glyceryl cocoate, PEG-30 glyceryl cocoate, ceteareth-20, ceteth-10, ceteth-20, Isoceteth-20, Laureth-4, Laureth-23, Oleth-10, Oleth-20, Steareth 10, Steareth 20, Steareth 100 and Steareth 21, PEG 20 Glyceryl Laurate, PEG 40 Hydrogenated Castor Oil, Poloxamer 184 (Polyoxyethylene Polyoxypropylene Glycol), and combinations thereof.

[0040] "Exempt" and "devoid" and "exclude" or "excluded" each indicate that no reliably measurable excluded material, for example, an excluded volatile silicone oil or an excluded surfactant or other excluded material as described herein, is present in the cosmetic cleansing composition. The term "substantially free" means that, although it is preferable that no excluded material be present in the cosmetic cleansing composition, it is possible to have very small amounts of the excluded material in the cosmetic cleansing composition of the invention, provided that such amounts do not materially affect the beneficial properties of the cosmetic cleansing composition. In particular, "substantially free" means that the excluded material may be present in the cosmetic cleansing composition in an amount of less than 5%, or less than 4%, or less than 3%, or less than 2%, or less than 1%, or less than 0.1% by weight, based on the total weight of the cosmetic cleansing composition.

[0041] “Keratinous substance” and “keratinous tissue” each include, but are not limited to, the skin, hair and nails.

[0042] The term "micellar" as used in reference to the inventive cosmetic cleansing composition means that the cosmetic cleansing composition consists of an aqueous phase with suspended micellar aggregates of surfactant and a cationic polymer that are readily suspended in the aqueous phase by stirring and that rapidly separate / dephase when the cosmetic cleansing composition is at rest. It is to be understood that the cosmetic cleansing composition does not include a significant oil content and therefore does not include an oil phase. The cosmetic cleansing composition is shaken or agitated to obtain a suspension of the surfactant micelles and the cationic polymer prior to application. The pre-application agitation forms a suspension of sufficient uniformity and stability to allow uniform application to keratinous tissue for makeup removal.The cosmetic cleansing composition is light, a bit like a toner, with a pleasant sensation when applied.

[0043] “Natural” or “nature-based” as used herein means and refers to cosmetically acceptable materials and components that are one or more of those directly obtained from nature, are obtained from nature with minimal processing, and are derivatives of materials that are obtained from nature. The cleansing composition according to the present disclosure is in some embodiments up to 99.11% natural, or “Highly Natural” or “All Natural,” meaning that all intentionally added ingredient carbon atoms are derived from natural sources in accordance with ISO 16 128.

[0044] “Petrochemical-free” means that the excluded petrochemicals have not been added as a component. Some specific, but not limiting, examples of petrochemicals that are absent from the cosmetic cleansing composition include benzalkonium chloride, isododecane, isohexadecane, and the like. In some embodiments, the cosmetic cleansing composition is not free of petrochemicals, but is formulated to have an amount of petrochemicals that is equal to or less than the amounts found in similar compositions that are commercially available.

[0045] “Silicone-free” means that the excluded silicones have not been added as component. In some embodiments, a composition is free of silicones. Some specific, but not limited to, examples of silicones that are absent from the cosmetic cleansing composition include, but are not limited to, silicone polymers, for example selected from dimethicone, cyclopentasiloxane and other silicone oils, and silicone elastomers.

[0046] “Skin” as used herein means and refers to skin materials containing keratin such as facial and body skin, scalp, eyebrows and lips.

[0047] “Stable” and “Stability” as used herein mean that the cleaning composition cosmetic shows no evidence of significant changes in one or more of color, odor, pH, or viscosity at room temperature and at temperatures in the range of about 25°C to about 45°C. In various embodiments, an inventive composition remains stable at temperatures in the range of about 25°C to about 45°C, for a period of at least one month, or at least two months, or longer, or any value, range, or subrange therebetween. In some embodiments, a cleansing composition is stable at 25°C for at least one month, or at least two months, or longer, or any value, range, or subrange therebetween. In some embodiments, a cleansing composition is stable at 45°C for at least one month, or at least two months, or longer, or any value, range, or subrange therebetween.As described herein, certain compositions including anionic polymers in place of the cationic polymer demonstrate a cloudiness that is associated with precipitation of one or more ingredients demonstrating instability of the composition.

[0048] COSMETIC CLEANSING COMPOSITION Amphoteric surfactant

[0049] In the various embodiments, the cosmetic cleansing composition comprises at least one amphoteric surfactant (or zwitterionic surfactant). In some embodiments, the cosmetic cleansing composition comprises more than one amphoteric surfactant. In some embodiments, the cosmetic cleansing composition may include or exclude one or more nonionic, cationic, or anionic surfactants, and in particular in some embodiments, excludes PEG / POE surfactants. In some embodiments, the cosmetic cleansing composition includes a combination of amphoteric surfactants.

[0050] In some embodiments, at least one amphoteric surfactant may include cocamidopropyl hydroxysultaine, cocamidopropyl betaine, coco betaine, sodium lauroamphoacetate, disodium cocoamphodiacetate, or a combination thereof. In some particular embodiments, the cosmetic cleansing composition includes a combination of surfactants that include cocamidopropyl hydroxysultaine, cocamidopropyl betaine, coco betaine, sodium lauroamphoacetate, disodium cocoamphodiacetate, or a combination thereof.

[0051] In some embodiments, at least one amphoteric surfactant may be selected from, for example, betaines, alkyl sultaines, alkyl amphoacetates and alkyl amphodiacetates, alkyl amphoproprionates, amphocarboxylates, alkyl betaines, amidoalkyl betaines, amphophosphates, phosphobetaines,

[0052] pyrophosphobetaines, carboxyalkylpolyamines, amidoalkyl sultaines, salts thereof, or mixtures thereof. Betaines that may be used in the present compositions include those having the formulas below: CHs CHM5H

[0053]

[0054]

[0055] CH® in which • R10 is an alkyl group having 8 to 18 carbon atoms; and • n is an integer from 1 to 3. Particularly useful betaines include, for example, cocamidopropyl betaine, lauryl betaine, laurylhydroxy sulfobetaine, lauryldimethyl betaine, cocamidopropyl hydroxysultaine, behenyl betaine, capryl / capramidopropyl betaine, lauryl hydroxysultaine, stearyl betaine, and mixtures thereof. In some embodiments, the at least one betaine compound may be selected from the group consisting of coco betaine, cocoamidopropyl betaine, behenyl betaine, capryl / capramidopropyl betaine, lauryl betaine, and mixtures thereof, and more typically coco betaine. Hydroxyl sultaines useful in the compositions of the invention include the following:

[0056] in which • R is an alkyl group having 8 to 18 carbon atoms.

[0057] More specific examples include, but are not limited to, cocamidopropyl hydroxy-sultaine, lauryl hydroxysultaine, or mixtures thereof.

[0058] Useful alkylamphoacetates include those having the formula OH O f'"' Q A .to A - * R' 'NH O Na

[0059] in which • R is an alkyl group having 8 to 18 carbon atoms.

[0060] Useful alkyl amphodiacetates include those having the formula O ■H- O Na O ' A n A .A. A . . R' NO Na OH

[0061] in which • R is an alkyl group having 8 to 18 carbon atoms.

[0062] Alkyl amphopropionates

[0063] Non-limiting examples of alkyl amphopropionates include cocoamphopropionate, caprylamphopropionate, comamphopropionate, caproamphopropionate, oleoamphopropionate, isostearoamphopropionate, stearoamphopropionate, lauroamphopropionate, salts thereof or mixtures thereof.

[0064] The at least one amphoteric surfactant of the present disclosure may be optionally quaternized secondary or tertiary aliphatic amine derivatives, wherein the aliphatic group is a straight or branched chain comprising from 8 to 22 carbon atoms, said amine derivatives containing at least one anionic group, e.g. a carboxylate, sulfonate, sulfate, phosphate or phosphonate group.

[0065] The at least one amphoteric surfactant may be present in the cosmetic cleansing composition in a range of about 1% to about 5%, based on the weight of the cosmetic cleansing composition.

[0066] In various embodiments, each of the at least one amphoteric surfactant may be present in an amount in the range of about 0.1% to about 20%, and the total amount of surfactant may be present in a range of about 0.1% to about 40% or more. In some embodiments, each of the at least one amphoteric surfactant is present in an amount that is at least 0.1%, or from about 1%, to about 20%, or up to 20%, or from about 0.1% to about 5%, or from about 3%, or from about 8%, or from about 0.05% to about 10%, or from about 5% to about 10%, or from about 7% to about 15%, or from about 10% to about 30%, or from about 30% to about 50%, or any value, range, or subrange by weight, based on the weight of the cosmetic cleansing composition.

[0067] In some embodiments, the at least one amphoteric surfactant includes co-camidopropyl hydroxysultaine present in the cosmetic cleansing composition in a range of about 0.05% to about 10%, or coco-betaine present in the cosmetic cleansing composition in a range of about 0.05% to about 10%, or a combination thereof.

[0068] In some embodiments, the at least one amphoteric surfactant includes co-camidopropyl hydroxysultaine present in the cosmetic cleansing composition in a range of about 0.5% to about 2.5%, (ii) coco-betaine present in the cosmetic cleansing composition in a range of about 0.1% to about 0.25%, or a combination thereof.

[0069] Thus, in various embodiments, each of the at least one amphoteric surfactant may be present in a composition according to the disclosure from 0.05, 0.06, 0.07, 0.08, 0.09, 0.1, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 120, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49 to about 50, including intermediate increments and ranges. Cationic Polymer

[0070] In the various embodiments, the cosmetic cleansing composition comprises at least one cationic polymer chosen from polymers of natural origin which are polysaccharides, and other polymers of natural origin (i.e. of plant, animal or bacterial origin), synthetic or modified cationic or of natural origin.

[0071] In some embodiments, the cationic polymer is a naturally occurring polymer. In general, a naturally occurring cationic polymer may be selected from cationic forms and cationic derivatives of polysaccharides isolated from algae, polysaccharides produced by microorganisms and polysaccharides from higher plants, such as homogeneous polysaccharides.

[0072] In some embodiments, the naturally occurring cationic polymer selected from polysaccharides may be selected from polysaccharides that include chitosan, chitin, starches, alginates, celluloses, galactomannans such as guar gums, in particular their cationic derivatives, and combinations thereof. In some embodiments, the at least one naturally occurring cationic polymer selected from polysaccharides may be selected from chitosan, chitosan derivatives, chitin, starch, starch derivatives, cellulose (e.g., but not limited to, ethylcellulose, nitrocellulose, hemicellulose, and hemicellulose derivatives), alginates, including, but not limited to, sodium alginate, and combinations thereof.

[0073] In some embodiments, the cationic polymer is a naturally occurring cationic polymer selected from: chitosan, chitosan oligosaccharide, polymeric chitosan having a molecular weight in a range of 1 kDa to about 1000 kDa, chitosan derivatives, chitosan derivatives having enhanced solubility, cyclodextrin, cationic gelatin, cationic dextran, cationic cellulose, polylysine, polyornithine, histone, collagen, chitosan-cysteine, chitosan-thiobutylamidine, chitosan-thioglycolic acid, or combinations thereof.

[0074] Examples of cationic polymers include polysaccharide-based delivery molecules (e.g., chitosan, cyclodextrin, cationic gelatin, cationic dextran, cationic cellulose), cationic peptides and their derivatives (e.g., polylysine, polyornithine), peptide / protein polymers (e.g., histone, collagen), linear or branched synthetic polymers (e.g., polybrene, polyethyleneimine), natural polymers (e.g., histone, collagen), synthetic dendrimers, thiolated cationic biopolymers (naturally occurring thiomers or naturally occurring dendrimers, e.g., chitosan-cysteine, chitosan-thiobutbutylamidine as well as chitosan-thioglycolic acid).

[0075] Examples of naturally occurring cationic polymers include polysaccharide-based delivery molecules (e.g., chitosan, cyclodextrin, cationic gelatin, cationic dextran, cationic cellulose); cationic peptides and their derivatives (e.g., polylysine, polyornithine), peptide / protein polymers (e.g., histone, collagen); thiolated cationic biopolymers (naturally occurring thiomers or naturally occurring dendrimers, e.g., chitosan-cysteine, chitosan-thiobutylamidine, chitosan-thioglycolic acid); or combinations thereof.

[0076] In some embodiments, the cosmetic cleansing composition comprises the at least one naturally occurring cationic chitosan selected from chitosan oligosaccharide, chitosan (or polymeric chitosan having a molecular weight (MW) in a range of about 1 kDa to about 1000 kDa), chitosan derivatives, including derivatives having enhanced solubility, or combinations thereof.

[0077] In various embodiments, the chitosan has a molecular weight (MW) in a range of about 1 kDa to about 1000 kDa. In some particular embodiments, the chitosan has a molecular weight that is "low" and is in the range of about 1 kDa to about 20 kDa, or about 10 kDa to about 20 kDa, or about 12 kDa to about 18 kDa. In some embodiments, the chitosan has a MW of chitosan =~27 kDa

[0078] In some embodiments, the at least one naturally occurring cationic polymer is present from about 0.05% to about 2%, or from about 0.2% to about 0.4%, based on the weight of the cosmetic cleansing composition and comprises chitosan.

[0079] In some embodiments, the at least one naturally occurring cationic polymer is chitosan present in an amount ranging from about 0.01% to about 5%.

[0080] In some embodiments, the at least one naturally occurring cationic polymer is chitosan present in an amount ranging from about 0.05% to about 2.5%.

[0081] Chitosan is a unique polycation because its charge density depends on the degree of acetylation and the pH of the medium, and its solubility depends on the degree of acetylation and the molecular weight. And although chitosan oligomers are soluble over a wide pH range, from acidic to basic (i.e., physiological pH 7.4), chitosan with increasing molecular weight is only soluble in acidic aqueous media, even at high degrees of deacetylation. This lack of solubility at neutral and basic pH has hindered the use of chitosan in some applications under neutral physiological conditions (i.e., pH 7.4).

[0082] The pH of the cosmetic cleansing composition is in the range of about 4 to about 8, or about 4 to about 7, or about 4 to about 6, or about 4 to about 5, or about 4.5 to about 6.5, or about 5 to about 5.5, or about 5 to about 6, or about 5.

[0083] The at least one naturally occurring cationic polymer is present in the cosmetic cleansing composition according to the disclosure from about 0.01% to about 10%, from about 0.05% to about 2%, or from about 0.05% to about 1%, or from about 0.1% to about 0.8%, or from about 0.1% to about 0.5%, or from about 0.2% to about 0.4%, or from about 0.4%, or from about 0.4%, or any suitable combination, subcombination, range or subrange of these values ​​by weight, based on the weight of the cosmetic cleansing composition.

[0084] Thus, a polymer or combination of polymers may be present, by weight, based on the total weight of the cosmetic cleansing composition, from about 0.05, 0.06, 0.07, 0.08, 0.90, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0 to about 2 weight percent, including intermediate increments and ranges.

[0085] In some embodiments, the cationic polymer comprises chitosan having a MW in a range of 10 kDa to about 20 kDa.

[0086] In certain particular embodiments, each of the at least one cationic nature-based polymer chosen from polysaccharides may be chosen from chitosan and galactomannans such as guar gums, in particular their cationic derivatives.

[0087] In other embodiments, the cationic polymer of natural origin chosen from polysaccharides may be chosen from one or more of methylcelluloses, hydroxyalkylcelluloses, ethylhydroxyethylcelluloses and carboxymethylcelluloses, mannans, xylans, lignins, arabans, galacturonans, alginate-based compounds, chitin, glucuronoxylans, arabinoxylans, xyloglucans, glucomannans, fructosans such as inulin, pectic acids and pectins, arabinogalactans, agars, glycosaminoglycans, gum arabic, gum tragacanth, gum ghatti, gum karaya, locust bean gum, biopolysaccharide gums of microbial origin such as scleroglucan or xanthan gums, mucopolysaccharides, sulfates of chondroitin and their mixtures.

[0088] In accordance with the various embodiments, the amount of each of the at least one naturally occurring cationic polymer present in the cosmetic cleansing compositions may range from about 0.01% to about 10%, or from about 0.01% to about 5%, or from about 0.01% to about 0.5%, or from about 0.1% to about 0.5%, or from about 0.1% to about 0.2%, or from about 0.1% to about 5%, or from about 1% to about 3.5%, or any suitable combination, subcombination, range, or subrange by weight, based on the weight of the cosmetic cleansing composition. A person of ordinary skill in the art will, however, appreciate that other ranges are within the scope of the invention.

[0089] In the various embodiments, the total amount of natural cationic polymer that may be present in the cosmetic cleansing composition may range from about 0.01% to about 20%, or from about 0.05% to about 10%, or from about 0.1% to about 5%, or from about 0.05% to about 1%, or from about 0.01% to about 0.5%, or from about 0.1% to about 0.5%, or from about 0.1% to about 0.2%, or about 0.2% or any suitable combination, subcombination, range or subrange by weight, based on the weight of the cosmetic cleansing composition. A person of ordinary skill in the art will appreciate, however, that other ranges fall within the scope of the invention.

[0090] Thus, any one of the at least one naturally occurring cationic polymer is present, by weight, based on the total weight of the cosmetic cleansing composition, from about 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 2, 3, 4, 5, 6, 7, 8, 9 to about 10% by weight, including intermediate increments and ranges.

[0091] In some embodiments, the cationic polymer is not a naturally occurring polymer and may be selected from synthetic polymers. In some examples, the synthetic polymers are not silicone-based, and in some embodiments may be selected from the group consisting of polyquaterniums, i.e., polymers having quaternary ammonium centers in the polymer, for example, including polyquaternium-47 (1-Propanaminium, N,N,N-trimethyl-3-[(2-methyl-1-oxo-2-propenyl)amino]-, chloride, a polymer with methyl 2-propenoate and 2-propenoic acid). Other non-limiting examples of these polyquaterniums may be chosen from diallyidimethylammonium chloride / acrylic acid copolymers sold under the names MERQUAT 280 POLYMER or MERQUAT 280NP POLYMER or MERQUAT 281 POLYMER or MERQUAT 295 POLYMER, by the company Nalco (Lubrizol) (INCI name: Poly-quatemium-22);the copolymer of methacrylamidopropyltrimonium chloride, acrylic acid or methyl acrylate, sold under the name MERQUAT 2001 POLYMER OR MERQUAT 2001 N POLYMER by the company Nalco (Lubrizol) (INCI name: Polyquaternium-47); the acrylamide / dimethyldiallylammonium chloride / acrylic acid terpolymer sold under the name MERQUAT 3330DRY POLYMER or MERQUAT 3330PR POLYMER or MERQUAT 3331 PR POLYMER or MERQUAT 3940 POLYMER or MERQUAT PLUS 3330 POLYMER OR MERQUAT PLUS 3331 POLYMER by the company Nalco (Lubrizol) (INCI name: Polyquaternium-39); an ampholytic terpolymer consisting of methacrylamidopropyltrimethylammonium chloride (MAPTAC), acrylamide and acrylic acid, sold under the name MERQUAT 2003PR POLYMER by the company Nalco (Lubrizol) (INCI name: Polyquaternium-53); Polyquaternium-30, Polyquaternium-35, Polyquaternium-45, Polyquaternium-50, Polyquatemium-54; Polyquatemium-57; Polyquatemium-63; Polyquaternium-74; Polyquatemium-76; Polyquaternium-86; Polyquaternium-89;Polyquaternium-95; Polyquaternium-98, Polyquaternium-104; Polyquaternium-111; Polyquaternium-112, and mixtures thereof. In some embodiments, the cationic polymer is a synthetic polymer selected from cationic acrylic polymers, for example, an amorphous functional acrylic polymer grafted onto a polyethylene backbone such as SYNTRAN (TM) 5330, which is a quaternary modified olefin graft technology. More generally, these synthetic polymers are; selected from, but not limited to, cationic polymers comprising polyacrylates such as those identified in the International Dictionary and Handbook of Cosmetic Ingredients (9th ed. 2002) such as, for example, polyacrylate-1, polyacrylate-2, polyacrylate-3, polyacrylate-4, polyacrylate-16, polyacrylate-17, polyacrylate-18, polyacrylate-19, polyacrylate-21, and mixtures thereof. Such (co)polymers, or similar (co)polymers, may be combined individually or with other (co)polymers to form suitable bimodal agents having both cationic and anionic functionalities.

[0092] According to the various embodiments, the amount of cationic polymer which is not a naturally occurring polymer and is selected from synthetic cationic polymers may be present in the synthetic cleaning composition in a range of about 0.01% to about 20%, by weight, or about 0.05% to about 10%, or about 0.1% to about 5%, about 0.5% to about 2%, or about 1%, or about 0.05% to about 1%, or about 0.01% to about 0.5%, or about 0.1% to about 0.5% by weight, or about 0.1% to about 0.2%, or any combination, subcombination, range or subrange of these values ​​by weight, based on the total weight of the foaming cleaning composition.

[0093] Thus, any of the at least one synthetic cationic polymer, when present, is present, by weight, based on the total weight of the cosmetic cleansing composition, from about 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 2, 3, 4, 5, 6, 7, 8, 9 to about 10% by weight, including intermediate increments and ranges.

[0094] In the various embodiments, the amount of each of the at least one cationic polymer which may be a cationic polymer of natural or synthetic origin, alone or in combination with another cationic polymer, present in the cosmetic cleansing compositions may range from about 0.01% to about 10%, or from about 0.01% to about 5%, or from about 0.01% to about 0.5%, or from about 0.1% to about 0.5%, or from about 0.1% to about 0.2%, or from about 0.1% to about 5% or from about 1% to about 3.5%, or from about 0.5% to about 2%, or about 1%, or any suitable combination, subcombination, range or subrange of these values ​​by weight, based on the weight of the cosmetic cleansing composition. A person of ordinary skill in the art will appreciate, however, that other ranges fall within the scope of the invention. Surfactant / Co-emulsifier (Co-emulsifier)

[0095] In some embodiments, the cosmetic cleansing composition may include one or more co-emulsifying surfactants (hereinafter co-emulsifier).

[0096] In certain embodiments, the suitable co-emulsifier that may be used according to the disclosure may be selected from polyglyceryl-4 caprate (PG-caprate 4), glyceryl caprylate, isopropyl myristate, isopropyl palmitate, ethylhexyl palmitate, methyl palmitate, 2-ethylhexyl palmitate, hexyl laurate, ethylhexyl laurate, isopropyl laurate, ethylhexyl oleate, ethylhexyl isononanoate, isononyl isononanoate, myristyl myristate, 2-ethylhexyl caprate / caprylate (or octyl caprate / caprylate), isostearyl neopentanoate, cetearyl ethyl hexanoate, isopropyl isostearate, diisopropyl sebacate, coco caprylate / caprate, diisopropyl adipate, and combinations of these lactic acid esters of fatty alcohols comprising 12 or 13 carbon atoms, or combinations thereof.

[0097] In some embodiments, the one or more co-emulsifiers are present from about 1% to about 8% by weight, based on the weight of the cosmetic cleansing composition. In some embodiments, the total amount of co-emulsifier does not exceed a total of about 10% by weight of the cosmetic cleansing composition.

[0098] In some embodiments, each of the one or more co-emulsifiers may be present from about 0.05% to about 10%, or from about 0.1% to about 15% by weight of the cosmetic cleansing composition, or from about 1% to about 10% by weight, or from about 1% to about 8%, or from about 0.05% to about 2%, or about 1% or any suitable combination, subcombination, range or subrange of these values ​​by weight, based on the weight of the cosmetic cleansing composition. When present, the total amount of surfactant / co-emulsifier present in the cosmetic cleansing composition may be in a range of about 0.1% to about 15% by weight, or about 1% to about 8% by weight, or any suitable combination, subcombination, range or subrange of these values ​​by weight, based on the weight of the cosmetic cleansing composition.A person of ordinary skill in the art will, however, appreciate that other ranges fall within the scope of the invention.

[0099] Thus, each of the one or more co-emulsifiers in the cosmetic cleansing composition may be present by weight, based on the total weight of the cosmetic cleansing composition, of about 0.5, 0.6, 0.7, 0.8, 0.9, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 to about 15 percent, including intermediate increments and ranges. Water

[0100] In the various embodiments, the cosmetic cleansing composition includes water.

[0101] In various embodiments, the cosmetic cleansing composition comprises from about 5% to about 90% water, and in some embodiments from about 20% to about 85% water, and in some embodiments from about 50% to about 85% water, and in some embodiments from about 60% to about 80% water, and in some embodiments from about 65% to about 75% water, including increments and all intermediate ranges and sub-ranges, by weight, based on the total weight of the cosmetic cleansing composition. A person of ordinary skill in the art will appreciate, however, that other ranges are within the scope of the invention. Thus, water is present, by weight, relative to the total weight of the composition, in an amount of about 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 80, 85, up to about 90 percent, by weight, including increments and all intermediate ranges and sub-ranges.

[0102] The water used in the cosmetic cleansing composition may be sterile demineralized water and / or floral water such as rose water, cornflower water, chamomile water or linden water, and / or natural thermal or mineral water such as, for example: Vittel water, Vichy basin water, Uriage water, La Roche Posay water, La Bourboule water, Enghien-les-Bains water, Saint-Gervais-les-Bains water, Néris-les-Bains water, Allevar-les-Bains water, Digne water, Maizières water, Neyrac-les-Bains water, Lons-le-Saunier water, Eaux-Bonnes water, Rochefort water, Saint-Christau, Fumades water, Tercis-les-Bains water or Avène water. The aqueous phase can also include reconstituted thermal water, i.e. water containing trace elements such as zinc, copper, magnesium, etc., restoring the characteristics of thermal water.

[0103] Generally, the pH may be corrected to the desired value by adding a base or an acid (organic or inorganic). Given the inclusion of hydroxy acids in the cosmetic cleansing composition herein, the pH is typically corrected using a base, which in some examples is sodium hydroxide, or using an acid, which in some examples is citric acid. Water-soluble solvents

[0104] In some embodiments, the cosmetic cleansing composition may include at least one water-soluble solvent. The term "water-soluble solvent" is interchangeable with the term "water-miscible solvent" and means a compound that is liquid at 25°C and atmospheric pressure (760 mmHg), and that has a solubility of at least 50% in water under these conditions. In some cases, the water-soluble solvent has a solubility of at least 60%, 70%, 80%, or 90% in water under these conditions.

[0105] In some embodiments, the cosmetic cleansing composition includes a mixture of solvents that include glycerin with one or more of pentylene glycol, caprylyl glycol, butylene glycol, triethyl acrylate, and propylene glycol. In such embodiments, each of the solvents is present from about 1% to about 10%, in weight of the composition.

[0106] In some embodiments, the cosmetic cleansing composition includes a solvent mixture that includes at least glycerin with additional solvents including pentylene glycol and caprylyl glycol, butylene glycol and caprylyl glycol, triethyl citrate and caprylyl glycol, or triethyl citrate and propylene glycol.

[0107] In certain particular embodiments, the cosmetic cleansing composition includes a mixture of water-soluble solvents selected from the group consisting of glycerin, pentylene glycol and caprylyl glycol, glycerin, butylene glycol and caprylyl glycol, glycerin, triethyl citrate and caprylyl glycol, glycerin, triethyl citrate and propylene glycol, or combinations thereof.

[0108] In certain particular embodiments, the cosmetic cleansing composition that includes one of chitosan or guar or a combination thereof as the cationic polymer includes a mixture of water-soluble solvents selected from the group consisting of glycerin present at about 1%, and pentylene glycol present at about 3%.

[0109] In some particular embodiments, the cosmetic cleansing composition that includes polylysine as a cationic polymer includes a mixture of water-soluble solvents selected from the group consisting of glycerin present at about 1%, pentylene glycol present at about 1.5% and caprylyl glycol present at about 0.5%, glycerin present at about 1%, butylene glycol present at about 3% and caprylyl glycol present at about 0.5%, glycerin present at about 1%, triethyl citrate present at about 2.5% and caprylyl glycol present at about 0.5%, glycerin present at about 1%, triethyl citrate present at about 3% and propylene glycol present at about 3%, or combinations thereof.

[0110] Non-limiting examples of water-soluble solvents include, for example, glycerin, alcohols (e.g., C1-C30, C1-C5, C1-C10 or C1-C4 alcohols), polyols, glycols and combinations thereof.

[0111] Examples of organic solvents include, but are not limited to, monoalcohols and polyols such as ethyl alcohol, isopropyl alcohol, propyl alcohol, benzyl alcohol and phenylethyl alcohol, or glycols or glycol ethers such as, for example, monomethyl, monoethyl and monobutyl ethers of ethylene glycol, propylene glycol or ethers thereof such as, for example, monomethyl ether of propylene glycol, butylene glycol, hexylene glycol, dipropylene glycol as well as alkyl ethers of diethylene glycol, for example, monoethyl ether or monobutyl ether of diethylene glycol. Other suitable examples of organic solvents are: ethylene glycol, propylene glycol, butylene glycol, hexylene glycol, propane diol and glycerin. Organic solvents can be volatile or non-volatile compounds.

[0112] Other non-limiting examples of water-soluble solvents include alkanols (polyhydric alcohols such as glycols and polyols) such as glycerin, 1,2,6-hexanetriol, trimethylolpropane, ethylene glycol, propylene glycol, diethylene glycol, butylene glycol, hexylene glycol, triethylene glycol, tetraethylene glycol, pentaethylene glycol, dipropylene glycol, 1,3-butanediol, 2,3-butanediol, 1,4-butanediol, 3-methyl-1,3-butanediol, 1,5-pentanediol, tetraethylene glycol, 1,6-hexanediol, 2-methyl-2,4-pentanediol, polyethylene glycol, 1,2,4-butanetriol, 1,2,6-hexanetriol, 2-butene-1,4-diol, 2-ethyl-1,3-hexanediol, 2-methyl-2,4-pentanediol, (caprylyl glycol), 1,2-hexanediol, 1,2-pentanediol and 4-methyl-1,2-pentanediol; alkyl alcohols having 1 to 4 carbon atoms such as ethanol, methanol, butanol, propanol and iso-propanol;glycol ethers such as ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol acetate monomethyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol mono-n-propyl ether, ethylene glycol mono-iso-propyl ether, diethylene glycol mono-iso-propyl ether, ethylene glycol mono-n-butyl ether, ethylene glycol mono-t-butyl ether, diethylene glycol mono-t-butyl ether, 1-methyl-l-methoxybutanol, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol mono-t-butyl ether, propylene glycol mono-n-propyl ether, propylene glycol mono-iso-propyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, dipropylene glycol mono-n-propyl ether and dipropylene glycol mono-iso-propyl ether;2-pyrrolidone, N-methyl-2-pyrrolidone, l,3-dimethyl-2-imidazolidinone, formamide, acetamide, dimethyl sulfoxide, sorbite, sorbitan, acetin, diacetin, triacetin, sulfolane, and combinations thereof. ;

[0113] In some cases, a water-soluble solvent may be selected from the group consisting of pentylene glycol, glycerin, and combinations thereof.

[0114] In the various embodiments, the amount of the at least one water-soluble solvent, if present, is from about 0.5% to about 25%, or from about 0.5% to about 20%, or from about 1% to about 20%, or from about 1% to about 10%, or from about 2% to about 5%, or any suitable combination, subcombination, range or subrange of these values ​​by weight, based on the weight of the foaming cleansing composition. A person of ordinary skill in the art will appreciate, however, that other ranges are within the scope of the invention.

[0115] Thus, any water-soluble solvent is present, by weight, based on the total weight of the foaming cleaning composition, from about 0.5, 0.6, 0.7, 0.8, 0.9, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 to about 25% by weight, including intermediate increments and ranges. Conservatives

[0116] In some embodiments, one or more preservatives and / or antimicrobials may be present in the cosmetic cleansing composition.

[0117] Any preservative commonly used in cosmetic cleansing formulations is an acceptable preservative for the cosmetic cleansing compositions herein, such as phenoxyethanol, salicylic acid, members of the paraben family such as methyl, ethyl, propyl, butyl or isobutyl parabens, 4-hydroxybenzoic acid, benzoic acid, sorbic acid, dehydroacetic acid, triclosan, benzyl alcohol, chlorophenesin, or salicylic acid for example. At more concentrated amounts of suitable solvents for optional additives, particularly suitable solvents for antimicrobials and preservatives, members of the paraben family may be used as the preservative.

[0118] In some embodiments, the one or more preservatives, when present, may be selected from caprylyl glycol, myrtrimonium bromide, phenoxyethanol, hydroxyacetophenone, ethylhexylglycerin, chlorphenesin, cetrimonium chloride, hexylglycerin, octylglycerin, benzylglycerin, 3-heptoyl-2,2-propanediol and 1,2-hexanediol; polyaminopropyl biguanide, also known as polyhexamethylene biguanide, or PHMB, and combinations thereof. In some embodiments, the cosmetic cleansing composition is free or essentially free of one or more of caprylyl glycol, phenoxyethanol, hexylglycerin, ethylhexylglycerin, octylglycerin, benzylglycerin, 3-heptoyl-2,2-propandiol and 1,2-hexandiol; polyaminopropyl biguanide, also known as polyhexamethylene biguanide, or PHMB.

[0119] In some embodiments, the one or more preservatives include caprylyl glycol.

[0120] In some embodiments, the preservative may comprise one or more preservatives selected from the group consisting of organic acids, parabens, formaldehyde donors, phenol derivatives, quaternary ammoniums, alcohols, isothiazolinones, and combinations thereof. Preservatives having antibacterial activity are optionally present in the cosmetic cleansing compositions of the present invention. Examples of organic acid preservatives include, but are not limited to, sodium benzoate, potassium sorbate, benzoic acid and dehydroacetic acid, sorbic acid, and combinations thereof. A preferred organic acid preservative system comprises a mixture of sodium benzoate and potassium sorbate.Examples of paraben preservatives include, but are not limited to, alkyl para-hydroxybenzoates, wherein the alkyl radical has 1, 2, 3, 4, 5 or 6 carbon atoms and, for example, 1 to 4 carbon atoms, for example, methyl para-hydroxybenzoate (methylparaben), para- . ethyl parahydroxybenzoate (ethylparaben), propyl parahydroxybenzoate (propylparaben), butyl parahydroxybenzoate (butylparaben), and isobutyl parahydroxybenzoate (isobutylparaben). Examples of formaldehyde-donating preservatives include, but are not limited to, 1,3-dimethylol-5,5-dimethylhydantoin (DMDM hydantoin), imidazolidinyl urea, gluteraldehyde, and combinations thereof. Examples of quaternary ammonium preservatives include, but are not limited to, benzalkonium chloride, methenium ammonium chloride, benzethonium chloride, and combinations thereof. Examples of alcohol preservatives include, but are not limited to, ethanol, benzyl alcohol, dichlorobenzyl alcohol, phenoxyethanol, and combinations thereof. Examples of isothiazolone preservatives include, but are not limited to, methylchloroisothiazolinone, methylisothiazolinone, and combinations thereof.

[0121] In certain particular embodiments, suitable preservatives include, but are not limited to, phenoxyethanol, tetrasodium EDTA, zinc gluconate, hydroxyacetophenone, caprylyl glycol, chlorphenesin, or combinations thereof.

[0122] In some embodiments, the preservative includes one or more preservatives, the or combination present at a concentration, by weight, of about 0.001% to about 5%, or alternatively about 0.05% to about 2.5%, or alternatively about 0.1% to about 2.0%, or about 0.02% to about 1% by weight, or about 0.03% to about 0.5%, or any suitable combination, subcombination, range, or subrange thereof by weight, based on the weight of the foaming cleansing composition. A person of ordinary skill in the art will, however, appreciate that other ranges are within the scope of the invention.

[0123] Thus, any one or a combination of the preservatives, if present, may be present, by weight, based on the total weight of the foaming cleansing composition, from about 0.001, 0.002, 0.003, 0.004, 0.005, 0.006, 0.007, 0.008, 0.009, 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2, 3, 4, to about 5 weights, inclusive of increments and ranges intermediaries. Optional additives

[0124] In some embodiments, the cosmetic cleansing composition includes one or more other optional ingredients selected from the group consisting of skin care actives, humectants, conditioning agents, thickeners, viscosity adjusters, cooling agents, fillers, antimicrobials, preservatives, pH adjusters, chelating agents, and combinations thereof.

[0125] In certain embodiments, a cleansing composition includes at least one additive used in the cosmetic field which does not affect the properties of the cosmetic cleansing composition according to the invention, such as perfumes, correctors pH (citric acid, sodium chloride, lactic acid); pH neutralizing or adjusting agents (e.g., triethylamine (TEA) and sodium hydroxide, trisodium ethylenediamine disuccinate and combinations thereof), other cosmetically acceptable additives, such as, but not limited to, pearling agents, silica and coloring matters; essential oils; fruit extracts, e.g., Pyrus Malus (Apple) Fruit Extract and Aloe Barbadensis Leaf Juice Powder; actives (e.g., hydroxyacetophenone); vitamins (e.g., vitamin A, beta-carotene, tocopherol / vitamin E, panthenol, retinol, resveratrol, vitamin C, niacinamide, derivatives and combinations thereof); hyaluronic acid in the form of hydrolyzed hyaluronic acid or sodium hyaluronate; coloring matters / pigments; essential oils;antioxidants (phenolic compounds, such as chalcones, flavones, flavanones, flavanols, flavonols, dihydroflavonols, isoflavonoids, neoflavonoids, catechins, anthocyanins, tannins, lignans, aurones, stilbenoids, curcuminoids, alkylphenols, betacyanins, capsacinoids, hydroxybenzoketones, methoxyphenols, naphthoquinones and phenolic terpenes, resveratrol, curcumin, pinoresinol, ferulic acid, hydroxytyrosol, cinnamic acid, caffeic acid, p-coumaric acid, baicalin (Scutellaria Baicalensis root extract), pine bark extract (pine bark / bud extract), ellagic acid); vitamins and vitamin derivatives, such as calcium pantothenate, tocopherol and ascorbic acid; hydroxy acids; citric acid, sodium citrate, sodium chloride; neutralizing, chelating, or pH-adjusting agents (e.g., triethylamine (TEA), trisodium ethylenediamine disuccinate, sodium EDTA ethydroxide); powders, perfumes, dyes, pigments;organic or mineral UV filters; conditioning agents such as C12-15 alkyl lactate and C12-15 alcohols; thickeners, e.g., ammonium polyacryloyldimethyl taurate, propylene glycol and PEG-55 propylene glycol oleate; viscosity regulators, e.g., sodium chloride and hexylene glycol; cooling agents such as menthol; fillers, e.g., kaolin; or any combination thereof. Although the optional additives are given by way of example, it will be appreciated that other optional components compatible with cosmetic applications known in the art may be used. ;

[0126] In the various embodiments, the amount of one or more additives, alone or in combination, when present in the cosmetic cleansing composition according to the disclosure, may be present in a range of from about 0.0001% to about 20%, and in some embodiments, from about 0.005% to about 0.01%, and in some embodiments, from about 0.01% to about 0.1%, and in some embodiments, from about 0.15% to about 5%, and in some embodiments, from about 0.40% to about 4%, and in some embodiments, from about 0.5% to about 2.5%, and in some embodiments, from about 0.1% to about 0.5%, and in some embodiments, from about 1% to about 2%, or any suitable combination, subcombination, range or subrange thereof by weight, based on the total weight of the cosmetic cleansing composition. A person of ordinary skill in the art will, however, appreciate that other ranges are within the scope of the invention.

[0127] Thus, any one or a combination of optional additives may be present, by weight, relative to the total weight of the cosmetic cleansing composition, of about 0.0001, 0.0005, 0.001, 0.002, 0.003, 0.004, 0.005, 0.006, 0.007, 0.008, 0.009, 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.10, 0.20, 0.30, 0.40, 0.50, 0.60, 0.70, 0.80, 0.90, 1.0, 2. 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 to about 20% by weight, including intermediate increments and ranges.

[0128] In some embodiments, the cosmetic cleansing composition may include one or more oils. In some embodiments, the cosmetic cleansing composition is essentially free, free of, or devoid of oils.

[0129] In some examples, the oils may be selected from hydrocarbon-based oils. For example, the hydrocarbon-based oil may be a saturated hydrocarbon, an unsaturated hydrocarbon, lipids, triglycerides, a natural oil, and / or a synthetic oil. In some embodiments, the cosmetic cleansing composition may include a synthetic oil selected from the group consisting of hydrogenated polyisobutene and hydrogenated polydecene. A hydrocarbon-based oil may be a non-volatile hydrocarbon-based oil, such as: i. hydrocarbon oils of vegetable origin, such as glyceride triesters, which are generally triesters of fatty acids and glycerol, the fatty acids of which may have chain lengths varying from C4 to C24, these chains being able to be saturated or unsaturated and linear or branched;These oils include wheat germ oil, sunflower oil, grape seed oil, sesame oil, corn oil, apricot oil, castor oil, shea oil, avocado oil, olive oil, soybean oil, sweet almond oil, palm oil, rapeseed oil, cottonseed oil, hazelnut oil, macadamia oil, jojoba oil, alfalfa oil, poppy seed oil, cucurbitaceae oil, pumpkin oil, blackcurrant oil, evening primrose oil, millet oil, barley oil, quinoa oil, rye oil, safflower oil, candlenut oil, passionflower oil, rosehip oil and essential oils, such as Helianthus Annuus Seed Oil, Lavandula Angustifolia (Lavender) Oil, Mentha Piperita Oil, Rosmarinus Officinalis Leaf Oil (Rosemary), Pelargonium Graveolens Flower Oil, Citrus Aurantium Dulcis (Orange) Peel Oil, Mint Leaf Oil; Viridis (Spearmint), Citrus Aurantifolia (Lime) Oil, Melaleuca Altemifolia (Tea Tree) Leaf Oil, Citrus Grandis (Grapefruit) Peel Oil, Citrus Medica Limonum (Lemon) Peel Oil, Rose Flower Oil, Eucalyptus Globulus Leaf Oil, and combinations thereof. ii. synthetic ethers containing from 10 to 40 carbon atoms; iii. linear or branched hydrocarbons of mineral or synthetic origin, such as petroleum jelly, polydecenes, hydrogenated polyisobutene such as Parleam and squalane 40; iv. synthetic esters, for example oils of formula RCOOR' in which R represents a linear or branched fatty acid residue containing from 1 to 40 carbon atoms and R' represents a hydrocarbon-based chain which is in particular branched, containing from 1 to 40 carbon atoms provided that R + R' is equal to 10, for example, Purcellin oil (cetearyl octanoate), isopropyl myristate, isopropyl palmitate, C12-C15 alkyl benzoate, such as the product sold under the trade name Finsolv TN(TM) or Witconol TN(TM) by Witco or Tegosoft TN(TM) by Evonik Goldschmidt, 2-ethylphenyl benzoate, such as the commercial product sold under the name X-Tend 226 by ISP, isopropyl lanolate, hexyl laurate, diisopropyl, isononyl isononanoate, oleyl erucate, 2-ethylhexyl palmitate, isostearyl isostearate, diisopropyl sebacate, such as the product sold under the name "Dub Dis" by Stéarinerie Dubois, octanoates,alcohol or polyalcohol decanoates or ricinoleates, such as propylene glycol dioctanoate; hydroxylated esters, such as isostearyl lactate or diisostearyl malate; and pentaerythritol esters; citrates or tartrates, such as di(linear C12-C13 alkyl) tartrates, such as those sold under the name Cosmacol ETI(TM) by Enichem Augusta Industriale, as well as di(linear C14-C15 alkyl) tartrates, such as those sold under the name Cosmacol ETL(TM) by the same company; or acetates; , v. fatty alcohols which are liquid at room temperature, containing a branched and / or unsaturated carbon chain containing from 12 to 26 carbon atoms, for example octyldodecanol, isostearyl alcohol, oleyl alcohol, 2-hexyldecanol, 2-butyloctanol and 2-undecylpentadecanol; vi. higher fatty acids, such as oleic acid, linoleic acid or linolenic acid; vii. carbonates, such as dicaprylyl carbonate, such as the product sold under the name Cetiol CC(TM) by Cognis; viii. fatty amides, such as isopropyl N-lauroyl sarcosinate, such as the product sold under the trade name Eldew SL 205(TM) of Ajinomoto; and ix. essential oils selected from the group consisting of sunflower oil, sesame oil, peppermint oil, macadamia nut oil, tea tree oil, evening primrose oil, sage oil, rosemary oil, coriander oil, thyme oil, chili berry oil, rose oil, anise oil, balsam fir oil, bergamot oil, rosewood oil, cedarwood oil, chamomile oil, sage oil, clary sage oil, clove oil, cypress oil, eucalyptus oil, fennel oil, sea fennel oil, frankincense oil, geranium oil, ginger oil, grapefruit oil, jasmine oil, juniper berry oil, lavender oil, lemon oil, lemongrass oil, lime oil, mandarin oil, marjoram oil, myrrh oil, neroli, orange oil, patchouli oil, pepper oil, black pepper oil, petitgrain bigarade oil,pine oil, rose otto oil, rosemary oil, sandalwood oil, spearmint oil, spikenard oil, vetiver oil, wintergreen oil, and ylang ylang.

[0130] In some embodiments, the cosmetic cleansing composition may include at least one liquid alkane, branched or linear, having a carbon chain length of C11 to C20. In various embodiments, the liquid alkanes may be selected from those having a carbon chain length of C11 to C20. The liquid alkanes may be selected from those having a carbon chain length of C11 to C20, or C15 to C19, or one of C11, C12, C13, C14, C15, C16, C17, C18 and C19. In some particular embodiments, suitable liquid alkanes that may be used according to the disclosure include hydrocarbon-based oils containing from 8 to 16 carbon atoms, and in particular branched C8-C16 alkanes such as C8-C16 isoalkanes.In some exemplary embodiments, these liquid alkanes may be selected from isoparaffins, for example, isododecane (also known as 2,2,4,4,6-pentamethylheptane), isodecane, and isohexadecane.

[0131] The amount of each of the at least one branched or linear liquid alkane may be present in the cosmetic cleansing composition in a range of from about 1% to about 35%, or from about 15% to about 30%, or from about 10% to about 20%, or any suitable combination, subcombination, range or subrange thereof by weight, based on the weight of the cosmetic cleansing composition. A person of ordinary skill in the art will appreciate, however, that other ranges are within the scope of the invention.

[0132] Thus, each of the at least one branched or linear liquid alkane in the cosmetic cleansing composition may be present by weight, relative to the total weight of the com cosmetic cleansing position, from about 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 128, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, to about 35 percent, including intermediate increments and ranges.

[0133] Although the optional additives are given by way of example, it will be appreciated that other optional components compatible with suitable cosmetic applications known in the art may be used. It will be appreciated by a person skilled in the art that any optional additives are present only to the extent and in amounts that do not materially adversely affect the fundamental and novel feature(s) of the claimed disclosure. Thus, in certain embodiments that include optional additives, these optional additives will not materially affect the cosmetic cleansing composition.

[0134] More generally, it will be appreciated by a skilled person that all solvents, humectants, preservatives and other additives are present only to the extent and in amounts that do not materially adversely affect the fundamental and novel feature(s) of the claimed disclosure. EXAMPLES

[0135] The following examples are intended to further illustrate the present disclosure. They are not intended to limit the disclosure in any way. Unless otherwise indicated, all parts are by weight. Raw materials

[0136] [Table l]Table 1: Materials used include: Raw Material % Active (if <~100%); Components / Solvents in addition to the active Chitosan 85%: (includes beta-glucan at 15%) Polylysine 25% Cocamidopropyl Hydroxy-Sultaine 50% Coco Betaine 30% Polyglyceryl-4 Caprate 90% Example 1: Compositions

[0137] Exemplary embodiments of cosmetic cleansing composition are shown in Table 1, below.

[0138] [Table 2]Table 2: Inventive Compositions Ingredient INV 1 INV 2 INV 3 INV 4 INV 5 INV 6 INV 7 INV 8 INV 9 CAPRYLYL GLYCOL 0.50 GLYCERYL CAPRYLATE 0.50 0.50 0.50 0.50 POLYEPSILON-LYSI NE 0.10 0.10 0.10 0.10 0.4 TETRASODIUM GLUTAMATE DIACETATE 0.12 PENTYLENE GLYCOL 3.00 3.00 3.00 3.00 3.00 3.00 3.00 1.50 1.0 GLYCERIN 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 CITRIC ACID 0.05 0.05 0.00 5 0.00 5 0.05 0.05 0.05 0.05 0.05 GUAR HYDROXY-PROPYLTRIMONIUM CHLORIDE 0.10 0.10 0.10 COCAMIDOPROPYL HYDROXYSULTAIN E 0.40 0.40 0.60 0.60 0.60 0.60 1.2 COCO-BETAINE 0.20 1 0.20 1 POLY-GLYCERYL-4 CAPRATE 0.99 9 0.99 9 0.39 6 0.39 6 0.39 6 0.39 6 0.80 1 0.80 1 0.44 SODIUM CHLORIDE 0.04 0.04 WATER / QS ~94 ~94 ~94 ~94 ~94 ~94 ~94 ~95 ~96 CHITOSAN 0.08 5 BETA-GLUCAN 0.01 5 HYDROXYACETOPHENONE 0.30 0.30 0.30 0.30 0.3

[0139] Table 3 provides examples of inventive and comparative compositions. A, B, C, D are inventive micellar water formulations with chitosan; A1, B1, Cl, DI are comparative micellar waters without chitosan as baselines to illustrate the benefit of the cationic polymer, chitosan.

[0140] [Table 3] Table 3: Inventive and comparative compositions INCI (US / EU) Inventive With Chitosan Comparative Without Chitosan Formulation Identifier ABCD Al B1 Cl DI WATER / AQUA 92.7 1 92.7 1 93.2 4 93.2 4 92.8 1 92.8 1 93.3 4 93.34 CHITOSAN 0.1 0.1 0.1 0.1 COCAMIDOPROPYL HY-DROXYSULTAINE 2 2 0.8 0.8 2 2 0.8 0.8 PG-4 CAPRATE 0.44 0.44 1.11 1.11 0.44 0.44 1.11 1.11 GLYCERYL CAPRYLATE 0.5 0.5 0.5 0.5 HYDROXYACETOPHENONE 0.5 0.5 0.5 0.5 GLYCERIN 1 1 1 1 1 1 1 1 PENTYLENE GLYCOL 3 3 3 3 3 3 3 3 PH 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0

[0141] [Table 4] Table 4: Inventive compositions with polylysine & various solvents Ingredient INV8 (from Table 2) VAR1 VAR2 VAR3 pentylene glycol + caprylyl glycol butylene glycol + caprylyl glycol triethyl citrate + caprylyl glycol triethyl citrate + propylene glycol COCO-BETAIN E ~0.2 ~0.2 ~0.2 ~0.2 WATER ~95 ~93 ~94 ~91 GLYCERIN 1 1 1 1 POLYGLYCERYL-4 CAPRATE ~0.8 ~0.8 ~0.8 ~0.8 HYDROXYACETOPHENONE 0.3 0.3 0.3 0.3 PENTYLENE GLYCOL 1,5 BUTYLENE GLYCOL 3 TRIETHYLENE CITRATE 2,5 3 PROPYLENE GLYCOL 3 CAPRYLYL GLYCOL 0.5 0.5 0.5 CITRIC ACID 0.05 0.05 0.05 0.05 POLYEPSILON -LYSINE ~0.1 ~0.1 ~0.1 ~0.1

[0142] Comparative Reference Composition #1 (COMP I) (commercial micellar water with PEG surfactant. No cationic polymer)

[0143] Water, hexylene glycol, glycerin, disodium cocoamphodiacetate, poloxamer 184 (PEG surfactant), preservative / chelator. Comparative Reference Composition #2 (COMP 2)

[0144] MICELLAR WATER MILK

[0145] Aloe barbadensis leaf juice, hexylene glycol, water, glycerin, poloxamer 184, Agave tequilana leaf extract, Cannabis sativa (hemp) seed extract, caffeine, niacinamide, disodium cocoamphodiacetate, citric acid, 1,2-hexanediol, caprylyl glycol, glycolipids, polylysine, sodium hydroxide, sodium hyaluronate, phenoxyethanol, sodium benzoate, potassium sorbate. Inventive Compositions

[0146] Example 2, Removal Efficiency of Long-Lasting Foundation Removal in Vitro

[0147] Foundation: Maybelline Super Stay Long-Lasting Liquid Foundation

[0148] Referring to Table 3, the indicated compositions were tested and compared to reference composition #1. The results are shown below in Table 5.

[0149] [Table 5]Table 5: Percentage of elimination Composition ABCD Al B1 Cl DI COMP1 % elimination 43 35 47 43 28 22 26 22 19

[0150] The results show that the chitosan-free formulations (Al-Dl) demonstrate a removal efficiency of about 22% to 28%. In contrast, the inventive compositions with chitosan (AD) demonstrate a removal efficiency of about 35% to 47%. The performance of the inventive compositions is significantly better than the commercial reference COMP 1.

[0151] Example 3, Long-lasting foundation removal efficiency in vitro i residue after cleaning

[0152] The compositions were evaluated for the ability to remove foundation makeup from an artificial skin protein substrate based on color change.

[0153] Method for determining color change: The color difference associated with makeup removal, AE (delta-E; color difference in a rectangular coordinate system), was measured by Datacolor 600.

[0154] Clean reference: completely clean substrate, without makeup applied.

[0155] Black reference: substrate with makeup applied, but before makeup removal.

[0156] Sample after makeup removal: substrate with makeup applied, and after makeup removal carried out.

[0157] The equation below was used to calculate the removal efficiency. _ . ... after remoral reference Remavamhty = —-—:---------------------- nz? ___n,? Te / erence reference

[0158] Referring to Table 3, the indicated compositions were tested and compared to Reference #1 COMP 1. The results are shown below in Table 6.

[0159] [Table 6]Table 6: Foundation retained on the skin (delta E) Formulations with chitosan (delta E of residue) A (23.5) B (25.8) C (20.4) D (20.7) Formulations without chitosan (delta E of residue) Al (29.4) B1 (31.0) Cl (30.0) DI (30.6) COMP1 (34.6)

[0160] A lesser amount of residual foundation was measured on the substrate cleaned with compositions containing chitosan compared to compositions that did not include chitosan, demonstrating the improved makeup removal efficacy of chitosan.

[0161] Example 4, In vivo Long-lasting Makeup Removal Efficacy

[0162] The compositions were evaluated for lipstick and mascara removal capacity.

[0163] Maybelline Matte Ink Long Lasting Lipstick and Maybelline Big Shot Waterproof Mascara were applied to the skin of clinical subjects for in vivo removal capacity testing on the test subject's arms against long-lasting lipstick and waterproof mascara.

[0164] After the lipstick and mascara had dried, 0.4 grams of each composition formulation being evaluated was applied to remove the makeup.

[0165] Compared to reference #1 COMP 1, the inventive composition of Table 3, inventive C (with chitosan), picked up more makeup on cotton rounds and left less residue on the arms of test subjects.

[0166] Example 5, Long-lasting makeup removal efficacy in vivo with varied cationic polymer

[0167] The compositions were evaluated for lipstick and mascara removal capacity.

[0168] Maybelline Matte Ink Long Lasting Lipstick and Maybelline Big Shot Waterproof Mascara were applied to the skin of clinical subjects for in vivo removal capacity testing on the test subject's arms against long-lasting lipstick and waterproof mascara.

[0169] After the lipstick and mascara had dried, 0.4 grams of each composition formulation being evaluated was applied to remove the makeup.

[0170] Three different cationic polymers were evaluated in a base composition with hydroxysultaine with and without the co-emulsifier, polyglyceryl-4 caprate. The test compositions included 0.1% chitosan, 0.1% polylysine, and 0.1% guar.

[0171] Each of the three showed improved makeup removal capacity compared to Reference #1 COMP 1, and the addition of the co-emulsifier did not significantly affect the removal capacity. It is argued that under acidic conditions, protonated chitosan is positively charged, and through electrostatic interaction, the sulfonate group of amphoteric surfactant hydroxysultaine in the inventive cosmetic cleansing composition can be strongly bonded to the activated amino group to form surfactant aggregates / micelles.

[0172] Example 6, Evaluation of cationic polymers compared to other bio- polymers

[0173] The compositions were evaluated for the foundation removal capacity in the presence of different biopolymers selected from cationic, anionic and non-ionic polymers.

[0174] The super long-lasting foundation was applied to the skin of clinical subjects to allow its removal in vivo.

[0175] Each of the following polymers was tested in the bases hydroxysultaine on polyglyceryl-4 to 6 / 4 caprate and hydroxysultaine on polyglyceryl-4 to 2 / 8 caprate: chitosan, polylysine and guar (all cationic), xanthan and carrageenan (polyanionic), and sclerotium and pullulan (nonionic).

[0176] The results show that the anionic polymers xanthan and carrageenan demonstrate some enhancement of in vitro foundation removal, comparable to the polycations, likely due to the attraction of counterions or hydrogen bonding between the anionic polymer and sultaine / PG-4. The nonionic polymer demonstrated significantly lower efficacy than the polycationic and polyanionic polymers. The results of in vivo mascara tests show that the carrageenan polyanions are comparable to or slightly better than Reference #1 COMP 1, but do not perform as well as the polycations, which may be due to the polyanion-surfactant complex having a negative charge, not conducive to attraction with the makeup / skin surface. In addition, formulations with this anionic polymer are either phase-separated or very cloudy.

[0177] Example 7, Effect of Dolvlvsine as a cationic polymer versus PEG surfactant with added polvlvsine polymers

[0178] The compositions were evaluated for the ability to remove foundation makeup from an artificial skin protein substrate. Referring to Table 1, inventive 8 was evaluated against Reference 1 COMP 1 (which includes a PEG surfactant) with added polylysine and Reference 2 COMP 2. The results are shown below.

[0179] [Table 7]Table 7: Removal efficiency Inventive 8 Reference #1 COMP 1 (which includes a PEG surfactant) with added polylysine Reference 2 COMP 2 45.7% 19.7% 35.2%

[0180] The results demonstrate that the inventive composition proved more effective in removing makeup, and the addition of polycation (polylysine) did not improve the effectiveness of the reference which includes a PEG surfactant.

[0181] Example 8, Effect of polylysine as a cationic polymer

[0182] The compositions were evaluated for the ability to remove foundation makeup from the skin substrate. Referring to Table 1, inventive 8 was evaluated relative to the same formulation without polylysine.

[0183] The results demonstrate that the inventive composition was more effective in removing makeup, as evidenced by a removal efficiency of 45.7% for the inventive versus 31.3% for the comparative (inventive minus polylysine). An additional cotton pad was required to remove mascara and lipstick using the comparative. Similar results were obtained with the removal of mascara and lipstick, where the inventive composition outperformed each of the reference composition #1 and the comparative (inventive minus polylysine).

[0184] Example 9, Effect of surfactant ratio, amount of polylysine, pH in a range of 4 to 6 and osmotic pressure

[0185] The effects of varying amphoteric surfactant / coemulsifier ratios demonstrated no significant impact on performance, but higher amounts of a polyglyceryl-4 caprate coemulsifier had little effect on stability at low temperatures. Varying the pH demonstrated that a lower pH (about 4) shows better removal capacity likely attributed to greater polylysine protonation, although generally a pH >=4.5 is recommended for eye safety. Varying the polylysine level from 0.1% to 0.5% showed no significant difference in performance. An evaluation of the osmotic pressure of the compositions with polylysine and guar demonstrates that they are comparable to Reference #1, which, along with other commercial makeup removers, demonstrates an osmotic pressure higher than that of tears (at 304 mOsm / L).It is understood in the art that an osmotic pressure between 100 and 500 mOsm / L is considered safe. Table 8, below, provides osmotic pressure data for the inventive and comparative compositions.

[0186] [Table 8]Table 8: Osmotic pressure of various compositions COMPOSITION Reference #1 COMP1 INV 9 INV 3 INV 6 INV 5 OSMOTIC PRESSURE (mOsm / L) 451 276 484 480 468

[0187] Example 9. Effect of solvents (combination of two solvents)

[0188] Referring now to the compositions of Table 4, solvents were varied in a base formulation corresponding to INV 8 (VAR 1, VAR 2, VAR 3). The results are shown in Table 9 below.

[0189] [Table 9] Table 9: Effect of solvents Ingredient INV 8 (from Table 2) VAR1 VAR 2 VAR3 Solvent mixture pentylene glycol + caprylyl glycol butylene glycol + caprylyl glycol triethyl citrate + caprylyl glycol triethyl citrate + propylene glycol Removal capacity 51.5% 49.0% 62.3% 49.6%

[0190] Referring to Table 9, the results show that all of the inventive compositions tested, including INV 8 and the VAR 1-VAR 3 variants, are capable of removing makeup from the protein substrate of the artificial skin by at least about 50%. The data further show that a combination of triethyl citrate and caprylyl glycol in the composition also including glycerin demonstrated enhanced performance, suggesting that the inclusion of triethyl citrate and caprylyl glycol may further enhance the makeup removal efficiency in embodiments of the inventive composition according to the disclosure.

[0191] Although the disclosure has been described with reference to described embodiments, it will be understood by those skilled in the art that various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the disclosure. In addition, numerous modifications may be made to adapt a particular situation or a particular material to the teachings of the disclosure without departing from the essential scope thereof. Accordingly, it is intended that the disclosure not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this disclosure, but that the disclosure include all embodiments falling within the scope of the appended claims.

[0192] The articles "a" and "an", as used herein, mean one or more when applied to any feature in embodiments of the present disclosure described in the specification and claims. The use of "a" and "an" does not limit the meaning to a single feature, unless such a limitation is expressly indicated. The article "the", "the", "the" preceding singular or plural nouns or noun phrases denotes a specified particular feature or specified particular features and may have a singular or plural connotation depending on the context in which it is used. The adjective "any", "all" means one, some or all indiscriminately, regardless of the quantity.

[0193] “At least one” or “one or more”, as used herein, means one, two, three or more and thus includes individual components as well as mixtures / combinations.

[0194] The transitional terms "comprising", "consisting essentially of" and "consisting of", when used in the appended claims, in their original and amended form, define the scope of the claim with respect to additional unmentioned elements or steps, if any, which are excluded from the scope of the claim(s). The term "comprising" is intended to be inclusive or broad and does not exclude any additional, unmentioned element, process, step or material. The term "consisting of" excludes any element, step or material other than those specified in the claim and, in the latter case, impurities ordinarily associated with the specified material(s). The term "consisting essentially of" limits the scope of a claim to the specified elements, steps or material(s) and to those which do not materially affect the fundamental and novel feature(s) of the claimed disclosure.All materials and methods described herein that embody the present disclosure may, in other embodiments, be more specifically defined by any of the transitional terms "comprising", "consisting essentially of", and "consisting of".

[0195] The terms "free" and "devoid" indicate that no reliably measurable excluded material is present in the cosmetic cleansing composition, typically 0% by weight, based on the total weight of the cosmetic cleansing composition. The term "substantially free" means that, although it is preferable that no excluded material be present in the composition, it is possible to have very small amounts of the excluded material in the cosmetic cleansing composition of the invention, provided that such amounts do not materially affect the beneficial properties of the cosmetic cleansing composition. In particular, "substantially free" means that the excluded material may be present in the cosmetic cleansing composition in an amount of less than about 0.1% by weight, based on the total weight of the cosmetic cleansing composition.

[0196] Other than in the working examples, or unless otherwise indicated, all numbers expressing amounts of ingredients and / or reaction conditions should be understood to be modified in all cases by the term "about," meaning to within 10% of the number indicated (e.g., "about 10%" means 9% to 11% and "about 2%" means 1.8% to 2.2%).

[0197] All percentages and ratios are calculated by weight unless otherwise indicated. All percentages are calculated based on the total composition unless otherwise indicated. In general, unless expressly stated otherwise in the herein, "weight" or "amount" as used herein with respect to the percentage of an ingredient refers to the amount of raw material comprising the ingredient, where the raw material may be described herein as comprising less than and up to 100% of the ingredient's activity. Accordingly, the weight percentage of an active in a composition is represented as the amount of raw material containing the active that is used and may or may not reflect the final percentage of the active, where the final percentage of the active depends on the weight percentage of the active in the raw material.

[0198] All ranges and amounts set forth herein are intended to include subranges and amounts using any disclosed point as a boundary. Thus, a range of "1% to 10%, such as 2% to 8%, such as 3% to 5%" is intended to encompass ranges of "1% to 8%," "1% to 5%," "2% to 10%," and so on. Similarly, a given range of "about 1% to 10%" is intended to have both its 1% and 10% boundaries modified by the term "about." Furthermore, it is understood that when an amount of a component is given, it is intended to mean the amount of active ingredient unless expressly stated otherwise. In this document, all ranges proposed are intended to include each specific range within the given ranges, and all combinations of subranges therebetween. So a range of 1 to 5 specifically includes 1, 2, 3, 4, and 5, as well as the subranges 2 to 5, 3 to 5, 2 to 3, 2 to 4, 1 to 4, etc.As used herein, a ratio range is meant to include each specific ratio within the subranges and a combination of subranges between the given ranges.

[0199] Although the numerical ranges and parameters within the general scope of the disclosure are approximations, unless otherwise indicated, the numerical values ​​presented in the specific examples are reported as accurately as possible. However, any numerical value inherently contains certain errors necessarily resulting from the standard deviation observed in their respective test measurements. The following example serves to illustrate embodiments of the present disclosure without being limiting in nature.

Claims

Claims

1. A cosmetic cleansing composition comprising: a single-phase micellar water comprising: (a) at least one amphoteric surfactant present in an amount that is greater than about 0.05%, by weight, relative to the weight of the composition; (b) at least one cationic polymer present in an amount that is greater than about 0.01%, by weight, based on the weight of the composition; (c) optionally comprising a mixture of solvents selected from the group consisting of glycerin, pentylene glycol, caprylyl glycol, butylene glycol, triethyl citrate, propylene glycol or a combination thereof, wherein each solvent is present in a range of about 1% to about 10%, by weight of the cosmetic cleansing composition; (d) optionally comprising one or more co-emulsifiers comprising a polyglycerol ester selected from the group consisting of polyglyceryl-3 caprylate, polyglyceryl-3 cocoate, polyglyceryl-4 caprate, polyglyceryl-5 laurate, polyglyceryl-6 caprylate, or a combination thereof, and wherein the one or more co-emulsifiers are present in the cosmetic cleansing composition in a range of from about 0.05% to about 10%, by weight, based on the total weight of the cosmetic; and (e) an aqueous carrier comprising at least water, wherein the cosmetic cleansing composition is essentially free of PEG / POE surfactants.

2. The cosmetic cleansing composition of claim 1, wherein the at least one amphoteric surfactant is present in the cosmetic cleansing composition in a range of from about 0.05% to about 10%, by weight, based on the total weight of the cosmetic cleansing composition, and is selected from the group consisting of coca-midopropyl hydroxysultaine, cocamidopropyl betaine, coco betaine, sodium lauroamphoacetate, disodium cocoamphodiacetate, and combinations thereof, and wherein each of the at least one cationic polymer is present in an amount of from about 0.01% to about 5% by weight based on the total weight of the cosmetic cleansing composition, and is selected from the group consisting of chitosan, po- lylysine, guar hydroxypropyltrimonium chloride, dextran hydroxypropyltrimonium chloride and combinations thereof.

3. The cosmetic cleansing composition of claim 1, wherein the at least one amphoteric surfactant comprises (i) cocamidopropyl hydroxysultaine present in the cosmetic cleansing composition in a range of about 0.05% to about 10%, (ii) coco-betaine present in the cosmetic cleansing composition in a range of about 0.05% to about 10%, or combinations thereof, all amounts by weight, based on the total weight of the cosmetic cleansing composition, and wherein the at least one cationic polymer is selected from (i) chitosan present in the cosmetic cleansing composition in a range of about 0.01% to about 5%, (ii) polylysine present in the cosmetic cleansing composition in a range of about 0.01% to about 5%, (iii) guar hydroxypropyltrimonium chloride present in the cosmetic cleansing composition in a range of about 0.01% to about 5%, or combinations thereof,all quantities by weight, relative to the total weight of the cosmetic cleansing composition.,

4. The cosmetic cleansing composition of claim 1, wherein the at least one amphoteric surfactant comprises (i) cocamidopropyl hydroxysultaine present in the cosmetic cleansing composition in a range of about 0.5% to about 2.5%, (ii) coco-betaine present in the cosmetic cleansing composition in a range of about 0.1% to about 0.25%, or a combination thereof, and wherein each of the at least one cationic polymer is present in an amount of about 0.05% to about 2.5% by weight, all amounts by weight, based on the total weight of the cosmetic cleansing composition, wherein the at least one cationic polymer is selected from (i) chitosan present in the cosmetic cleansing composition in a range of about 0.05% to about 0.15%, (ii) polylysine present in the cosmetic cleansing composition in a range of about 0.05% to about 0.15%,(iii) guar hydroxypropyltrimonium chloride present in the cosmetic cleansing composition in a range of from about 0.05% to about 0.15%, or (iv) combinations thereof, all amounts by weight, based on the total weight of the cosmetic cleansing composition, and wherein the cosmetic cleansing composition includes a mixture, of solvents selected from the group consisting of (i) glycerin present at about 1%, pentylene glycol present at about 1.5% and caprylyl glycol present at about 0.5%, (ii) glycerin present at about 1%, butylene glycol present at about 3% and caprylyl glycol present at about 0.5%, (iii) glycerin present at about 1%, triethyl citrate present at about 2.5% and caprylyl glycol present at about 0.5%, (iv) glycerin present at about 1%, triethyl citrate present at about 3% and propylene glycol present at about 3%, and (v) a combination thereof.

5. The cosmetic cleansing composition of claim 1, wherein the cosmetic cleansing composition is substantially free of PEG / POE surfactants selected from the group consisting of PEG-20 glyceryl triisostearate, PEG-7 glyceryl cocoate, PEG-20 methylglucoside ses-quistearate, PG-5 dioleate, PG-4 diisostearate, PG-10 isostearate, PEG-60 hydrogenated castor oil, PEG-8 stearate, PEG-8 isostearate, PEG-60 hydrogenated castor oil, PEG-150 laurate, PEG-150 distearate, PEG-150 pentaerythrityl tetrastearate, PEG-78 glyceryl cocoate, PEG-30 glyceryl cocoate, ceteareth-20, ceteth-10, ceteth-20, isoceteth-20, laureth-4, laureth-23, oleth-10, oleth-20, steareth-10, steareth-20, steareth-100 and steareth-21, PEG-20 glyceryl laurate, PEG-40 hydrogenated castor oil, poloxamer 184 (polyoxyethylene polyoxy-propylene glycol), and combinations thereof, and wherein, when present,the one or more coemulsifiers comprise polyglyceryl-4 caprate present in the cosmetic cleansing composition in a range of about 0.4% to about 1.2%, based on the total weight of the cosmetic cleansing composition.,

6. The cosmetic cleansing composition of claim 1, wherein the composition has a pH in the range of about 4.0 to about

7. o,v. A cosmetic cleansing composition according to claim 1, comprising at least one of hydroxyacetophenone, caprylyl glycol, sodium chloride, citric acid, tetrasodium glutamate diacetate, or combinations thereof.

8. A cosmetic cleansing composition comprising: a single-phase micellar water comprising: (a) at least one amphoteric surfactant comprising (i) cocami- dopropyl hydroxysultaine present in the cosmetic cleansing composition in a range of about 0.05% to about 10%, (ii) coco-betaine present in the cosmetic cleansing composition in a range of about 0.05% to about 10%, or combinations thereof; (b) at least one cationic polymer selected from (i) chitosan present in the cosmetic cleansing composition in a range of about 0.01% to about 5%, (ii) polylysine present in the cosmetic cleansing composition in a range of about 0.01% to about 5%, (ii) guar hydroxypropyltrimonium chloride present in the cosmetic cleansing composition in a range of about 0.01% to about 5%, or combinations thereof; (c) one or more co-emulsifiers are selected from poly-glyceryl-4 caprate, glyceryl caprylate, or a combination thereof, and wherein the at least one co-emulsifier is present in the cosmetic cleansing composition in a range of about 0.05% to about 10%; (d) an aqueous carrier comprising water and a water-based solvent or combination of water-based solvents selected from the group consisting of glycerin, pentylene glycol or a combination thereof; and (e) at least one of hydroxyacetophenone, caprylyl glycol, sodium chloride, citric acid, tetrasodium glutamate diacetate, or combinations thereof, all quantities by weight, relative to the total weight of the cosmetic cleansing composition, in which the cosmetic cleansing composition excludes PEG / POE surfactants, wherein the cosmetic cleansing composition has a pH in the range of about 4.0 to about 8.0, and wherein the at least one cationic polymer is selected from (i) chitosan present in the cosmetic cleansing composition in a range of about 0.05% to about 0.15%, (ii) polylysine present in the cosmetic cleansing composition in a range of about 0.05% to about 0.15%, (iii) guar hydroxypropyltrimonium chloride present in the cosmetic cleansing composition in a range of about 0.05% to about 0.15%, or combinations thereof, all amounts by weight, based on the total weight of the cosmetic cleansing composition.

9. A cosmetic cleansing composition comprising: a single-phase micellar water comprising: (a) at least one amphoteric surfactant present in an amount that is greater than about 0.05%, by weight, relative to the weight of the composition; (b) at least one cationic polymer comprising chitosan, polylysine, guar hydroxypropyltrimonium chloride or combinations thereof, the at least one cationic polymer being present in an amount that is greater than about 0.01%, by weight, based on the weight of the composition; and (c) an aqueous carrier comprising at least water, all amounts by weight, based on the total weight of the cosmetic cleansing composition, wherein the cosmetic cleansing composition is essentially free of PEG / POE surfactants, and wherein the cosmetic cleansing composition has a pH of about 5, and wherein the cosmetic cleansing composition when applied to keratinous tissue demonstrates cleansing of foundation and long-lasting lipstick.

10. The cosmetic cleansing composition of claim 1, wherein the at least one amphoteric surfactant comprises (i) cocami-dopropyl hydroxysultaine present in the cosmetic cleansing composition in a range of about 0.05% to about 10%, (ii) coco-betaine present in the cosmetic cleansing composition in a range of about 0.05% to about 10%, or combinations thereof, and wherein the cationic polymer is chitosan present in a range of about 0.01% to about 5%, the cosmetic cleansing composition comprising one or more co-emulsifiers, and one or a combination of water-based solvents, and wherein the one or more co-emulsifiers are selected from polyglyceryl-4 caprate, glyceryl caprylate, or a combination thereof, present in the cosmetic cleansing composition in a range of about 0.05% at about 10%,and wherein (a) the at least one cationic polymer is selected from chitosan, guar, or a combination thereof, the cosmetic cleansing composition including a water-soluble solvent mixture comprising glycerin present at about 1%, and pentylene glycol present at about 3%, or (b) the at least one cationic polymer is po-, lylysine, the cosmetic cleansing composition including a mixture of solvents selected from the group consisting of (i) glycerin present at about 1%, pentylene glycol present at about 1.5% and caprylyl glycol present at about 0.5%, (ii) glycerin present at about 1%, butylene glycol present at about 3% and caprylyl glycol present at about 0.5%, (iii) glycerin present at about 1%, triethyl citrate present at about 2.5% and caprylyl glycol present at about 0.5%, (iv) glycerin present at about 1%, triethyl citrate present at about 3% and propylene glycol present at about 3%, and (v) a combination thereof.