CLEANING COMPOSITION AND ITS APPLICATION

Abstract

CLEANING COMPOSITION AND APPLICATION This disclosure proposes a composition comprising at least one amino acid-based surfactant and propylene glycol laurate in an amount ranging from 1.5 to 6.5% by weight, wherein the composition has a pH in the range of 4.5 to 6.5. This disclosure also proposes a method for treating a keratinous surface and a method for removing makeup from a keratinous surface. Figure for abstract: none

Description

Title of the invention: CLEANING COMPOSITION AND ITS APPLICATION FIELD OF INVENTION

[0001] This disclosure relates to the field of personal care products and, in particular, to cleansing compositions. This disclosure also relates to a composition for cleansing and removing makeup from keratinous surfaces such as skin, and associated processes. CONTEXT OF THE INVENTION

[0002] An optimized cleansing regimen is the first key step to achieving luminous and radiant skin. Consumers are increasingly aware of the importance of skin-friendly cleansers that have an optimal pH and deliver an improved complexion.

[0003] Many consumer products on the market claim to provide an instant, one-step cleansing action that replaces a lengthy skincare routine. However, cosmetic formulations face challenges in delivering multiple desirable results at once. Products need to provide and maintain soft, smooth skin while simultaneously managing instant and lasting sebum regulation, retaining moisture for a non-drying feel, and providing a cleansing effect.

[0004] In today's world, makeup use has increased considerably, and makeup removal has become an essential part of the skincare routine. Generally, makeup removal is a multi-step process, such as cleansing with cream or oil, followed by washing the face with soap or cleansing foam. Therefore, users are seeking cleansers that can remove makeup and also lather well, to cleanse the skin while remaining skin-friendly.

[0005] Therefore, there is a need to develop a cleansing composition with an optimized combination of mild cleansing agents and a desired product texture that is capable of simultaneously removing makeup and cleansing the skin. Summary of the invention

[0006] In one aspect of this disclosure, a cosmetic composition is proposed comprising: i. at least one amino acid-based surfactant; and ii. propylene glycol laurate in an amount from 1.5 to 6.5% by weight, wherein the composition has a pH in the range of 4.5 to 6.5.

[0007] In another aspect of this disclosure, a method for treating a keratinous surface is proposed, the method comprising applying the composition as disclosed herein to the keratinous surface to obtain foam and rinsing off the composition.

[0008] In another aspect of this disclosure, a cosmetic method for removing makeup from a keratinous surface is proposed, the method comprising applying the composition as disclosed herein to a makeup-covered keratinous surface, removing the composition and removing makeup from the makeup-covered keratinous surface.

[0009] These features, aspects, and advantages, as well as others, of the present subject matter will be better understood by reference to the following description and the attached claims. This summary is provided to present a selection of concepts in a simplified form. This summary is not intended to identify key features or essential features of the claimed subject matter, nor to be used to limit the scope of the claimed subject matter. DETAILED DESCRIPTION OF THE INVENTION

[0010] The term “INCI” is an abbreviation for International Nomenclature of Cosmetic Ingredients, which is a system of names provided by the International Nomenclature Committee of the Personal Care Products Council to identify cosmetic or personal care ingredients.

[0011] As mentioned in the context, self-administered skincare is increasing daily, and there is a continued need for an effective composition for cleansing and removing makeup. Existing cleansing compositions face challenges in terms of both cleansing and makeup removal capabilities, while also requiring a skin-friendly pH. Furthermore, existing cleansers often suffer from stability issues and low foaming characteristics. Therefore, the present composition offers a cleansing composition that provides immediate skin cleansing with high foaming and makeup removal capabilities. The composition of this disclosure comprises an amino acid-based surfactant and propylene glycol laurate, with a pH in the range of 4.5 to 6.5. The composition provides a significant makeup removal effect.The presence of propylene glycol laurate in the formula is advantageous because it is insoluble in water and oil and effectively disperses makeup residue at the interface. Furthermore, the amino acid-based surfactants stabilize the formula and provide a skin-friendly pH. In addition, the combination of amino acid-based surfactants and propylene glycol laurate delivers excellent foaming properties.

[0012] Accordingly, embodiments of this disclosure include a cleansing composition, a self-administered skincare product comprising a composition and a method for treating the keratinous surface, such as the skin. The disclosed embodiments of this disclosure demonstrate the makeup-removing capability of the cleansing composition. Other embodiments of this disclosure further propose a cleansing composition that functions as a kind of "recovery" skin cleanser and thus has a soothing effect after sun exposure. Furthermore, the composition is gentle on skin lipids and proteins, and provides brightening, nourishment, radiance, and luminosity to the skin.

[0013] Accordingly, the present invention provides a cosmetic composition comprising at least one amino acid-based surfactant and propylene glycol laurate in an amount from 1.5 to 6.5% by weight, wherein the composition has a pH in the range of 4.5 to 6.5. The present invention further provides a method for treating and / or cleansing a keratinous surface, such as skin, and a cosmetic method for removing makeup from a keratinous surface. The present invention further provides a use for the composition to cleanse and remove makeup from a keratinous surface such as skin. Composition

[0014] Embodiments of the present invention provide a cosmetic composition for cleansing and treating a keratinous surface, particularly the skin. The composition of the present invention has cleansing and makeup-removing capabilities at a skin-friendly pH. The composition is highly foaming, with a rich and stable lather, without residual dryness, with balanced hydration, and gentle and easy rinsing of the keratinous surface.

[0015] The composition according to embodiments of the present is a combination of at least one amino acid-based surfactant and propylene glycol laurate, with an optimal pH for the skin.

[0016] Embodiments of the present formulation provide a composition comprising at least one amino acid-based surfactant and propylene glycol laurate in an amount ranging from 1.5 to 6.5% by weight, wherein the composition has a pH in the range of 4.5 to 6.5. The composition according to the present embodiments includes at least one pH-adjusting agent and surfactants selected from an amphoteric surfactant and a nonionic surfactant. The composition also includes water.

[0017] Some embodiments of the present provide a composition having a capacity for both cleansing and makeup removal.

[0018] Some embodiments of the present also propose a transparent composition having a rich foaming capacity.

[0019] Some embodiments of this article further provide a composition for cleaning and / or treating a keratinous surface such as skin. In particular, some embodiments of this article provide a composition for removing makeup from a keratinous surface and for cleaning keratinous surfaces such as skin. Propylene glycol laurate

[0020] Some embodiments of the present provide a cosmetic composition comprising propylene glycol laurate. In particular, the composition according to some embodiments of the present comprises propylene glycol laurate in an amount ranging from 1.5 to 6.5% by weight.

[0021] Embodiments of the present propose a composition preferably comprising propylene glycol laurate in an amount ranging from 1.5 to 6% by weight, relative to the total weight of the composition.

[0022] In one embodiment, propylene glycol laurate is present in an amount ranging from 1.5% to 6% by weight, relative to the total weight of the composition. Amino acid-based surfactant

[0023] Some embodiments of the present provide a cosmetic composition comprising at least one amino acid-based surfactant.

[0024] The composition, according to embodiments hereof, includes at least one amino acid-based surfactant. The term "amino acid-based surfactant" refers to anionic surfactants comprising anionic amino acid-based surfactant groups that decrease the surface tension or interfacial tension between two liquids, a liquid and a gas, or a liquid and a solid.

[0025] This surfactant carries at least one permanent negative charge or can be ionized into a negatively charged species, under the conditions of use of the composition of the present invention (for example the medium or the pH) and does not include any cationic charge.

[0026] In one embodiment, the amino acid-based surfactant is chosen from formula (I)

[0027] [Chem.l] O ^(CH2)n^COOM XY

[0028] in which

[0029] - Z represents a linear or branched alkyl or alkenyl group having 6 to 22 atoms of carbon,

[0030] - X is hydrogen or a methyl group,

[0031] - n is chosen from 0 to 2,

[0032] - Y is chosen from hydrogen, -CH3, -CH(CH3)2, -CH2CH(CH3)2, -CH(CH3 )CH2CH3, -CH2C6H5, -CH2C2H4OH, -CH2OH, -CH(OH)CH3, -(CH2)4NH2, -(CH2)3 NHC(NH)NH2, -CH2C(O)O M+' -(CH2)2C(O)OH, and -(CH2)2C(O)O M+, and M is a salt-forming cation in which COO is a counter-anion.

[0033] Examples of amino acid-based surfactants include, but are not limited to, salts of alanine, arginine, aspartic acid, glutamic acid, glycine, isoleucine, leucine, lysine, phenylalanine, serine, tyrosine, valine, sarcosine, and any mixtures thereof. Preferably, amino acid-based surfactants include alaninate, glycinates, glutamates, sarcosinates, or combinations thereof.

[0034] More specifically, the amino acid-based surfactant is preferably selected from sodium cocoyl alaninate, sodium cocoyl glycinate, sodium cocoyl sarcosinate, sodium lauroyl methylaminopropionate, dipotassium capryloyl glutamate, dipotassium undecylenoyl glutamate, disodium capryloyl glutamate, disodium cocoyl glutamate, disodium lauroyl glutamate, disodium stearoyl glutamate, disodium undecylenoyl glutamate, potassium capryloyl glutamate, potassium cocoyl glutamate, potassium lauroyl glutamate, potassium myristoyl glutamate, potassium stearoyl glutamate, potassium undecylenoyl glutamate, sodium capryloyl glutamate, sodium cocoyl glutamate, sodium lauroyl glutamate, sodium myristoyl glutamate, sodium olivoyl glutamate, sodium palmitoyl glutamate, sodium stearoyl glutamate, sodium undecylenoyl glutamate, potassium lauroyl sarcosinate, potassium cocoyl sarcosinate, sodium cocoyl sarcosinate,sodium lauroyl sarcosinate, sodium myristoyl sarcosinate, sodium oleoyl sarcosinate, sodium palmitoyl sarcosinate, ammonium lauroyl sarcosinate, or combinations thereof. ,

[0035] Reference may be made to commercially available amino acid-based surfactants, for example, acylsarcosinates, such as sodium lauroyl sarcosinate sold under the name Sarkosyl NL 97® by Ciba or Oramix L 30® by SEPPIC, sodium myristoyl sarcosinate sold under the name Nikkol Sarcosinate MN® by Nikkol, or sodium palmitoyl sarcosinate sold under the name Nikkol Sarcosinate PN® by Nikkol; N-acylglutamates, such as triethanolamine monococoylglutamate sold under the name Acylglutamate CT-12® by the Ajinomoto company and triethanolamine lauroylglutamate sold under the name Acylglutamate LT-12® by the Ajinomoto company; and any of their mixtures.

[0036] In a preferred embodiment, the amino acid-based surfactant is selected from sodium cocoyl alaninate, sodium cocoyl glycinate, sodium cocoyl sarcosinate, sodium lauroyl methylaminopropionate, disodium cocoyl glutamate, sodium cocoyl glutamate, or combinations thereof.

[0037] In a preferred embodiment, the amino acid-based surfactant is present in an amount ranging from 1% to 40% by weight, preferably from 3% to 40% by weight, and more preferably from 4% to 35% by weight, relative to the total weight of the composition. pH adjusting agent

[0038] Some embodiments of the present provide a cosmetic composition comprising at least one pH-correcting agent.

[0039] The composition, according to embodiments hereof, includes at least one pH-adjusting agent. The pH-adjusting agent forming part of the composition maintains the pH of the composition within a range of 4.5 to 6.5.

[0040] The pH correcting agent that can be used in the present invention is selected from citric acid, potassium acetate, potassium hydroxide, sodium carbonate, sodium hydroxide, phosphoric acid, succinic acid, sodium citrate, boric acid, lactic acid, sodium hydrogen carbonate, ethanolamines, or combinations thereof.

[0041] In a preferred embodiment, the pH correcting agent is chosen from citric acid, potassium acetate, potassium hydroxide, or combinations thereof.

[0042] The amount of pH correcting agent in the composition, according to embodiments of the present, may vary.

[0043] In one embodiment, the pH correcting agent is in an amount ranging from 0.01% to 10% by weight, preferably from 0.1% to 5% by weight, and more preferably from 0.1% to 1% by weight or less, relative to the total weight of the composition. Amphoteric surfactant

[0044] The composition, according to embodiments of the present, comprises at least one amphoteric surfactant.

[0045] Some embodiments of the present propose a composition comprising at least one amphoteric surfactant.

[0046] The term "amphoteric surfactant," as used herein, refers to a surfactant having both anionic and cationic groups as ionizable groups. In one embodiment of this disclosure, an entity is described as "amphoteric" when it has the ability to switch between anionic properties, the isoelectric neutral stage and cationic properties, under the conditions of use of the composition of this disclosure (medium, pH, for example)

[0047] The amphoteric surfactant(s) used in the composition according to an embodiment of the present may optionally be quaternized amine derivatives containing at least one anionic group, for example a carboxylate, sulfonate, sulfate, phosphate or phosphonate group, and in which the aliphatic group or at least one of the aliphatic groups is a linear or branched chain comprising 8 to 22 carbon atoms.

[0048] In one embodiment, the amphoteric surfactant is selected from (C8-C20)alkylbetaines, a sulfobetaine, a hydroxysulfobetaine, a (C8-C20)alkylamido(C2-C8)betaine, a (C8-C20)alkylamido(C2-C8)sulfobetaine, (C8-C14acyl)amphoacetates, (C8-C14acyl)amphoglycinates, or combinations thereof, preferably selected from (C8-C20)alkylbetaines, a (C8-C20)alkylamido(C2-C8)betaine, (C8-C20)alkylamido(C2-C8)hydroxysulfobetaines, (C8-C20)alkylamido(C2-C8)alkylsulfobetaines, or their combinations.

[0049] In one embodiment, the (C8-C20)alkylbetaines are selected from phenylbetaine, cetylbetaine, cocoylbetaine, decylbetaine, or combinations thereof. Among the alkylbetaines, cocoylbetaine is preferred, for example, the products sold by Rhodia under the trade name Mirataine® BB / FLA.

[0050] In one embodiment, the amphoteric surfactants include the optionally quaternized amine derivatives of structures (II) and (III) respectively shown below:

[0051] Ra-CON(Z#)CH2 (CH2)m-N+(Rb)(Rc)(CH2COO) (II)

[0052] in which:

[0053] - Ra represents an alkyl or alkenyl group in C10-C3O, preferably a group alkyl or alkenyl present in hydrolyzed coconut oil, a heptyl group, a nonyl group, or an undecyl group,

[0054] - Rb represents a hydrogen, an alkyl group or [3-hydroxyethyl,

[0055] - Rc represents a hydrogen, an alkyl or carboxy methyl group;

[0056] - m is equal to 0, 1 or 2,

[0057] - Z' represents a hydrogen atom or a hydroxyethyl group or carboxymethyl;

[0058] Ra-CON(Z)CH2.(CH2)mN(B)(B') (III)

[0059] in which:

[0060] - B represents -CH2CH2OX', with X' representing -CH2-COOH, CH2-COOZ', -CH2 CH2-COOH, -CH2CH2-COOZ', or a hydrogen atom,

[0061] - B' represents -(CH2)Z-Y', with z = 1 or 2, and Y' representing -COOH, -COOZ", -CH2-CHOH-SO3H or -CH2-CHOH-SO3Z",

[0062] - m' is equal to 0, 1 or 2,

[0063] - Z' represents a hydrogen atom or a hydroxyethyl group or carboxymethyl,

[0064] - Z" represents an ion resulting from an alkali or alkaline earth metal, such as the sodium, potassium or magnesium; an ammonium ion; or an ion resulting from an organic amine and in particular from an amino alcohol, such as monoethanolamine, diethanolamine and triethanolamine, monoisopropanolamine, diisopropanolamine or triisopropanolamine, 2-amino-2-methyl-l-propanol, 2-amino-2-methyl-l,3-propanediol and tris(hydroxymethyl)aminomethane,

[0065] - Ra represents a C10-C30 alkyl or alkenyl group, preferably an alkyl or alkenyl present in linseed oil or hydrolyzed coconut oil, an alkyl group, in particular a Cp alkyl group, and its iso form, or an unsaturated Cp group.

[0066] In particular, according to one embodiment, the amphoteric surfactants may be an amphoteric surfactant based on betaine, for example, (C8-C20)alkylbetaines, sulfobetaines, hydroxysulfobetaines, (C8-C20alkyl)amido(C2-C8alkyl)betaines, and (C8-C20alkyl)amido(C2-C8alkyl)sulfobetaines. Preferably, the amphoteric surfactants are selected from (C8-C20 alkyl)betaines, (C8-C20 alkyl)amido(C2-C8 alkyl)betaines, or combinations thereof. Preferably, the amphoteric surfactant is selected from cocamidopropylbetaine (CAPB), cocoylbetaine, or combinations thereof.

[0067] In one embodiment, the amphoteric surfactant is in an amount ranging from 10 to 50% by weight, preferably from 15 to 45% by weight, and more preferably from 20 to 40% by weight, relative to the total weight of the composition. Non-ionic surfactant

[0068] The composition, according to embodiments of the present, comprises at least one non-ionic surfactant.

[0069] Embodiments of the present here propose a composition comprising at least one non-ionic surfactant.

[0070] The non-ionic surfactant includes an alkyl polyglycoside of formula (IV):

[0071] R1O-(R2O)t-(G)v (IV)

[0072] in which,

[0073] - Ri is a linear or branched alkyl or alkenyl radical comprising 6 to 24 atoms of carbon, preferably 8 to 18 carbon atoms, or an alkylphenyl radical whose A linear or branched alkyl radical comprises 6 to 24 carbon atoms, and preferably 8 to 18 carbon atoms.

[0074] - R2 is an alkylene radical comprising 2 to 4 carbon atoms,

[0075] - G is a sugar motif comprising 5 to 6 carbon atoms,

[0076] -1 is a value ranging from 0 to 4 and preferably from 0 to 2, and

[0077] - v is a value from 1 to 10 and preferably from 1 to 4.

[0078] The glucoside bonds between the sugar motifs are generally of type 1-6 or 1-4, preferably of type 1-4. Preferably, the alkylpolyglycoside surfactant is an alkylpolyglucoside surfactant, more preferably the alkylpolyglucoside is a C8 to C16 alkyl polyglycoside and in particular selected from coco glucoside, decyl glucosides, caprylyl / capryl glucosides, or their combinations.

[0079] Among the commercial products, we can mention the products sold by the company COGNIS under the names Plantaren® (600 CS / U, 1200 and 2000) or Plantacare® (818, 1200 and 2000); the products sold by the company SEPPIC under the names Oramix CG 110 and Oramix NS 10; the products sold by the company BASF under the name Lutensol GD 70, or the products sold by the company Chem Y under the name AGIO LK.

[0080] In one embodiment, the nonionic surfactant present in the composition includes acyl glucamides selected from lauroyl methyl glucamide, myristoyl methyl glucamide, capryloyl methyl glucamide, capryl methyl glucamide, cocoyl methyl glucamide, caproyl methyl glucamide, lauryl methyl glucamide, caprylol / capryol methyl glucamide, oleoyl methyl glucamide oleate, stearoyl methyl glucamide stearate, sunflower methyl glucamide, tocopheryl succinate methyl glucamide, or combinations thereof, preferably lauroyl methyl glucamide, myristoyl methyl glucamide, or one of their combinations.

[0081] In other embodiments, the nonionic surfactant also includes fatty amides, oxyalkylated glycerol esters, or combinations thereof. In one embodiment, the fatty amide is selected from cocamide MEA (coco monoethanolamide) and cocamide MIPA (coco monoisopropanolamide), cocamide DEA (coco diethanolamide), cocamide DIPA (coco diisopropanolamine), lauramide MEA (lauryl monoethanolamide), lauramide DEA (lauryl diethanolamide), or combinations thereof.

[0082] In another embodiment, the nonionic surfactant can also be selected from oxyalkylated glycerol esters. Oxyalkylated glycerol esters are, in particular, polyoxyethylenated derivatives of glycerol esters and a fatty acid and their hydrogenated derivatives. These oxyalkylated glycerol esters can be selected, for example, from hydrogenated and oxyethylenated glycerol and fatty acid esters, such as PEG-200 hydrogenated glyceryl palmate, sold under the name Rewoderm LLS 80 by Goldschmidt; glycerol cocoates oxyethylenated, such as PEG-7 glyceryl cocoate, sold under the name Tegosoft GC by the Goldschmidt company, and PEG-30 glyceryl cocoate, sold under the name Rewoderm LI-63 by the Goldschmidt company; and mixtures thereof.

[0083] In one embodiment, the nonionic surfactant is chosen from an alkyl polyglycoside, acyl glucamides, fatty amides, oxyalkylated glycerol esters, or combinations thereof.

[0084] In one embodiment, the non-ionic surfactant is in an amount ranging from 1% to 20% by weight, preferably from 1.5% to 15% by weight, and more preferably from 2% to 10% by weight, relative to the total weight of the composition. Water

[0085] Some embodiments of the present provide a composition comprising water.

[0086] In one embodiment, the water is in an amount ranging from 2% to 55% by weight, preferably from 3% to 52% by weight, and more preferably from 3% to 50% by weight, relative to the total weight of the composition. Additives

[0087] The composition, according to embodiments of the present, may also include one or more additives, in particular cosmetic additives, which may be chosen in particular from a perfume, a humectant, a chelating agent, a neutralizer, or combinations thereof.Examples of additives include, but are not limited to, those selected from niacinamide, salicylic acid, glycerin, menthol, methyl diisopropyl propionamide, menthyl lactate, menthone glycerin acetal, menthyl lactate, ethyl menthane carboxamide, menthoxypropanediol, vitamin E, beta hydroxybutanoic acid, tropic acid, trethocanic acid, panthenol, glycolic acid, mandelic acid, malic acid, tartaric acid, lactobionic acid, gluconic acid or ester thereof, zinc gluconate, zinc sulfate, zinc salt of pyrrolidone carboxylic acid, vitamin B2, vitamin B6, vitamin C, ascorbyl glucoside, ascorbyl tetraisopalmitate, ascorbyl magnesium phosphate, phenoxyethanol, perfumes, sodium benzoate, essential oils, or combinations thereof.It is understood that a person skilled in the art will ensure that the optional additives and / or their quantity are selected so that the advantageous properties of the composition used according to the disclosure are not adversely affected by the contemplated addition. All such embodiments, including optional additives, are understood to be included within the scope of this disclosure. Product

[0088] One embodiment of the present invention provides a product comprising a cosmetic composition as disclosed herein. The product, according to embodiments of The product described herein may, more specifically, be a cleansing composition for cleaning keratinous surfaces, such as human skin. Preferably, the product, according to embodiments herein, is a cleansing and makeup-removing composition for a keratinous surface.

[0089] In one embodiment, the product is a transparent liquid cleaning composition having a rich foaming capacity. Process

[0090] Embodiments of the present include a process for treating keratinous surface.

[0091] In one embodiment, the keratinous surface treatment process includes applying the composition of the present invention to the keratinous surface to obtain foam and rinsing off the composition.

[0092] The process, according to embodiments herein, comprises applying the composition to a keratinous surface, preferably with water on the skin, followed by working the composition into a foam and rinsing the composition off. It is possible that the process according to this disclosure may include leaving the composition on the keratinous surface for a certain period after its application and before rinsing to enhance the desired skin benefits.

[0093] The process, according to embodiments herein, includes the cleaning and de-staining of a keratinous surface.

[0094] Some embodiments of the present provide a cosmetic process for removing makeup from a keratinous surface.

[0095] For the purposes of the present invention, the term "made-up keratinous surface" refers to a keratinous surface such as skin that has had any known makeup component applied to it. Makeup components include, but are not limited to, foundation, cream, cosmetic lotion, powder, makeup base, concealer, blush, highlighters, setting sprays / powders, serum, eye / lip makeup components, etc. The keratinous surface coated with such makeup components is referred to as the made-up keratinous surface.

[0096] In one embodiment, the cosmetic process for removing makeup from a keratinous surface such as the skin, includes applying the composition to a made-up keratinous surface, removing the composition and removing makeup from the made-up keratinous surface. Use

[0097] Some embodiments of the present propose the use of a composition according to the present invention.

[0098] The composition, according to embodiments hereof, can be used to treat and / or clean a keratinous surface, in particular the skin.

[0099] In one embodiment, the composition according to the present invention is used for removing makeup from a keratinous surface that has been made up.

[0100] In one embodiment, the composition according to the present invention is used to provide instant cleansing and makeup removal after the first use, and furthermore to provide significant soothing to the skin even after sun exposure.

[0101] Therefore, the composition, in various embodiments of the present, can be useful as a facial cleanser, makeup remover, cleansing milk, micellar or liquid cleanser.

[0102] Although the subject has been described in great detail with reference to certain examples and implementations thereof, it is understood that other implementations are possible and included within the scope of the present invention. EXAMPLES

[0103] The disclosure will now be illustrated by practical examples, which are intended to demonstrate how the disclosure works and are not intended to be restrictive in any way that would limit the scope of this disclosure. Unless otherwise defined, all technical and scientific terms and expressions used herein have the same meanings as those commonly understood by a person skilled in the art of this disclosure. Although processes and materials similar or equivalent to those described herein may be used in practice for the disclosed processes and compositions, examples of such processes, devices, and materials are described herein. It should be understood that this disclosure is not limited to the particular processes and experimental conditions described, as such processes and conditions may be applicable.

[0104] In the following examples, unless otherwise indicated, percentages are given as a percentage of the total weight of the composition. The percentages are percentages by weight per active ingredient or active material. Example 1

[0105] Composition C1 (according to the present invention) was prepared by mixing the amino acid-based surfactant, namely 8.34% (w / w) sodium cocoyl alaninate (30%), 9.00% (w / w) disodium cocoyl glutamate (and) sodium cocoyl glutamate (25%), an amphoteric surfactant, namely 30.00% (w / w) coco-betaine (30%), a non-ionic surfactant, namely 2.50% (w / w) coco-glucoside, 1.50% (w / w) propylene glycol laurate (100%), a pH adjuster, namely 0.25% (w / w) citric acid; and a sufficient quantity of water (Table 1). Similarly, compositions C2, C3, C4, C5 and C6 were prepared using the components as mentioned in Table 1 below.

[0106] Comparative compositions CPI, CP2 and CP3 were prepared by mixing said components as shown in Table 1 below. Composition CPI was free of propylene glycol laurate and compositions CP2 and CP3 were prepared using 0.50% (w / w) and 8% (w / w) propylene glycol laurate as shown in Table 1 below.

[0107] [Tables] Compositions Ingrédients (INC I) (% en poids) Cl C2 C3 C4 C5 C6 CPI CP 2 CP 3 Cocoyl Alaninate de sodium (Sodiu m Cocoyl Alanin ate) 8,34 0 8,34 15 - - 8,34 8,34 8,34 15 Cocoyl sarcosinat e de sodium (Sod ium Cocoyl Sarco sinate) - - - 8,34 - - - - - Lauroyl méthyl a minopropionate d e sodium (Sodium Lauroyl Methyl A minopropionate) 8,34 Cocoyl glutamate disodique (et) Coc oyl glutamate de s odium (Disodium Cocoyl Glutamate (and) Sodium Coc oyl Glutamate) 9,00 9,00 16,2 9,00 9,00 9,00 9,00 9,00 16,2 Coco-Bétaïne (Co co-Betaine) 30,0 0 30,0 0 54,0 0 30,0 0 30,0 0 30,0 0 30,0 0 30,0 0 54,00 Coco-Glucoside 2,50 2,50 4,50 2,50 2,50 2,50 2,50 2,50 4,50 Propylene Glycol Laurate (Propy lene Glycol Laura te) 1.50 3.00 6.00 3.00 3.00 2.00 0.00 0.50 8.00 Water Qs 1 00 Qs 1 00 Qs 1 00 Qs 1 00 Qs 1 00 Qs 1 00 Qs 1 00 Qs 1 00 Qs 100 Citric Acid 0.25 0.24 0.31 0.22 0.31 0.62 0.25 0.22 0.31 pH of the composition 6.0 6.0 6.0 6.0 6.0 4.6 6.0 6.0 Unstable composition Turbidity (NTU) 5.37 3.58 1.92 13.9 0 3.62 5.70 2.55 11.2 0 Separated

[0108] The turbidity of the compositions was measured in nephelometric turbidity units (NTUs) and is a measure of the turbidity or cloudiness of a fluid composition, indicating the presence, absence, and extent of suspended particles in the fluid composition. A lower NTU indicates lower turbidity and a very clear composition.

[0109] The turbidity of the Cl, C2, C3, C4, C5, and C6 compositions was found to be 5.37, 3.58, 1.92, 13.90, 3.62, and 5.70, respectively. The turbidity of the comparative compositions CPI and CP2 was 2.55 and 11.20, respectively. The comparative composition CP3 was unstable and exhibited component separation. Example 2 Makeup removal capacity

[0110] For the purposes of this disclosure for the makeup removal studies, a frictiometer (Tribomaster TL-201- Sa Trinity Lab, Inc) and a colorimeter (Spectrophorometer Konica Minolta CM-700d) were used; and the makeup removal studies were performed on a bioskin (No 10C #WHITE).

[0111] Protocol: (i) Preparation step: The color of the bioskin was measured at 5 points within the 3 cm x 3 cm area using a handheld colorimeter. The color values ​​were indicated by "L", "a", and "b", where "L" is lightness and "a" and "b" were color elements. Next, approximately 0.015 g of liquid foundation was applied evenly to the 9 cm² area and dried with a hairdryer for 2 minutes to completely dry the surface. When the liquid foundation was completely dry, the color in the area of ​​bioskin (made-up skin) with the dried foundation was measured with the colorimeter. The difference The difference between the color value of the bare bioskin and the color of the bioskin with dried foundation was calculated as follows (Equation i). Here, AEmax refers to the maximum value corresponding to the case where the foundation was completely removed compared to the bare bioskin.

[0112] AEmax = ^(AL^+Aa^+Ab^)--------------------------------------------(i)

[0113] where ALi = value L for Bioskin nude - value L for Bioskin + foundation

[0114] Aai = a value for Bioskin nude - a value for Bioskin + foundation

[0115] Abi = value b for Bioskin Nude - value b for Bioskin + Foundation

[0116] (ii) Removal step: Foundation removal was investigated using a frictiometer. The frictiometer parameters were set to a distance of 50 mm, a speed of 1200 mm / min, and 20 repetitions. The prepared (made-up) bioskin from the preparation step was placed and secured on the base of the frictiometer. It was positioned directly below its adapter. A cotton swab soaked in 1 g of the composition was attached to the frictiometer adapter and placed horizontally with the bioskin. The distance between them was adjusted and maintained in a position where they would simply adhere to each other. 100 g of external weight was placed on the adapter, and the measurement began. The base of the frictiometer was moved to the left, and the bioskin was wiped with the cotton swab to the right, as the adapter was secured in position with a force of 100 g.Once the frictiometer had been moved across the cotton to a distance of 50 mm, it was moved backward to return to its original position, and the adapter was held in place during its return. The adapter was then released, made contact with the bioskin again, and wiped by the frictiometer. This process was repeated until the bioskin had been wiped 20 times. Rinsing was performed using the same protocol. The cotton was soaked with 2 g of purified water and attached to the adapter. The bioskin was then removed and dried for 1 minute using a hairdryer.

[0117] (iii) Evaluation step: The completely dried bioskin was used for the evaluation step. 5 points within the area were measured and the % makeup removal (% removal of liquid foundation) was calculated as follows (Equation ii).

[0118] % makeup removal = (average AE / maximum AE)*100--------------------(ii)

[0119] The average of 5 points was calculated by the following equation iii.

[0120] AEmean = A / (AL22+Aa22+Ab22)--------------------------------------(iii)

[0121] where AL2 = value L for cleansed skin - value L for Bioskin+foundation

[0122] Aa2 = a value for cleansed skin - a value for Bioskin+foundation

[0123] Ab2 = value b for cleansed skin - value b for Bioskin+foundation.

[0124] Observations and results: The makeup removal capacity data in % obtained for the prepared compositions are shown schematically in Table 2. As the As shown in Table 2, the makeup removal capacity (%) for compositions Cl, C2, C3, C4, and C6 was >80% (score A) and for C5, 70-80% (score B). The comparative compositions CPI and CP2 had a makeup removal capacity <70% (score C). In contrast, composition CP3 was unstable and offered no makeup removal.

[0125] [Tables2] Cl C2 C3 C4 C5 C6 CPI CP 2 Makeup Removal Ability 84% 93% 88% 91% 79% 87% 65% 69% Makeup Removal Ability Score AAAABACC

[0126] The above observations and the % makeup removal capacity data revealed that the compositions of the present invention were less cloudy, worked effectively for makeup removal and offered a skin-friendly pH. BENEFITS OF THIS DISCLOSURE

[0127] This disclosure proposes a cleansing composition comprising at least one amino acid-based surfactant; propylene glycol laurate in an amount ranging from 1.5 to 6.5% by weight, wherein the composition has a pH in the range of 4.5 to 6.5. The composition further includes at least one amphoteric and nonionic surfactant and at least one pH-adjusting agent. The composition is a cleansing composition for cleaning keratinous surfaces, such as human skin. Preferably, the composition is a keratinous surface cleansing and makeup-removing composition. The composition provides instant cleansing and makeup removal after the first use and also offers significant skin soothing.

Claims

Demands

1. Cosmetic composition comprising: at least one amino acid-based surfactant; and propylene glycol laurate in an amount from 1.5 to 6.5% by weight; wherein the composition has a pH in the range of 4.5 to 6.

5.

2. Composition according to claim 1, wherein the composition comprises at least one pH-correcting agent; the pH-correcting agent preferably being selected from citric acid, potassium acetate, potassium hydroxide, sodium carbonate, sodium hydroxide, phosphoric acid, succinic acid, sodium citrate, boric acid, lactic acid, sodium hydrogen carbonate, ethanolamines, or combinations thereof; and / or the pH-correcting agent preferably being in an amount from 0.01% to 10% by weight, preferably from 0.1% to 5% by weight, and more preferably from 0.1% to 1% by weight, relative to the total weight of the composition.

3. Composition according to any one of the preceding claims, wherein propylene glycol laurate is preferably in an amount from 1.5% to 6.0% by weight, relative to the total weight of the composition.

4. A composition according to any one of the preceding claims, wherein the amino acid-based surfactant is present in an amount from 1% to 40% by weight, preferably from 3% to 40% by weight, and more preferably from 4% to 35% by weight, relative to the total weight of the composition; and / or wherein the amino acid-based surfactant is preferably selected from the formula (A) [Chem.2] O (C H2)n,COOM

5. in which - Z represents a linear or branched alkyl or alkenyl group having 6 to 22 carbon atoms, - X is hydrogen or a methyl group, - n is chosen from 0 to 2, - Y is chosen from hydrogen; -CH3, -CH(CH3)2, -CH2CH(CH3)2, -CH(CH3)CH2CH3, -CH2C6H5, -CH2C2H4OH, -CH2OH, -CH(OH)CH 3, -(CH2)4NH2, -(CH2)3NHC(NH)NH2, -CH2C(O)O M+' -(CH2)2 C(O)OH, and -(CH2)2C(O)O M+, and M is a salt-forming cation in which COO is a counter-anion;and / or, the amino acid-based surfactant is preferably selected from sodium cocoyl alaninate, sodium cocoyl glycinate, sodium cocoyl sarcosinate, sodium lauroyl methylaminopropionate, dipotassium capryloyl glutamate, dipotassium undecylenoyl glutamate, disodium capryloyl glutamate, disodium cocoyl glutamate, disodium lauroyl glutamate, disodium stearoyl glutamate, disodium undecylenoyl glutamate, potassium capryloyl glutamate, potassium cocoyl glutamate, potassium lauroyl glutamate, potassium myristoyl glutamate, potassium stearoyl glutamate, potassium undecylenoyl glutamate, sodium capryloyl glutamate, sodium cocoyl glutamate, sodium lauroyl glutamate, sodium myristoyl glutamate, sodium olivoyl glutamate, palmitoyl glutamate sodium, sodium stearoyl glutamate, sodium undecylenoyl glutamate, potassium lauroyl sarcosinate, potassium cocoyl sarcosinate, sodium cocoyl sarcosinate, sodium lauroyl sarcosinate,Sodium myristoyl sarcosinate, sodium oleoyl sarcosinate, sodium palmitoyl sarcosinate, ammonium lauroyl sarcosinate, or combinations thereof. Composition according to any one of the preceding claims, wherein the composition comprises at least one amphoteric surfactant; and / or the amphoteric surfactant is preferably chosen from among the (C8-C2o)alkylbetaines, (C8-C20)alkylsulfobetaines, (C8-C20)alkylamido(C3-C8)alkylbetaines, or (C8-C20)alkylamido(C6-C8)alkylsulfobetaines.

6. Composition according to any one of the preceding claims, wherein the composition comprises at least one nonionic surfactant; and / or the nonionic surfactant is preferably selected from an alkyl polyglycoside, acyl glucamides, fatty amides, oxyalkylated glycerol esters, or combinations thereof.

7. Composition according to any one of the preceding claims, wherein the composition comprises water.

8. Composition according to any one of the preceding claims, wherein the composition has both cleansing and makeup-removing properties; and / or the composition is preferably transparent and has a rich foaming capacity.

9. A method for treating a keratinous surface, the method comprising applying the composition according to any one of the preceding claims to the keratinous surface to obtain foam and rinsing off the composition.

10. Cosmetic method for removing makeup from a keratinous surface, the method comprising applying the composition according to any one of the preceding claims to a made-up keratinous surface, removing the composition and removing makeup from the made-up keratinous surface.