CLEANING COMPOSITION AND ASSOCIATED PROCESSES

Abstract

CLEANSING COMPOSITION AND ASSOCIATED PROCESSES This disclosure proposes a cleansing composition comprising at least two fatty acids, at least one sulfate-based surfactant, at least one amphoteric surfactant, and at least one polymer, with the sulfate-based surfactant and fatty acids in a weight ratio range of 1:1 to 1:5.5. The composition also comprises at least one deposition active and at least one deposition aid. This disclosure also proposes a process for instant and long-lasting skin lightening and detanning comprising the application of the composition. Figure for abstract: none

Description

Title of the invention: CLEANING COMPOSITION AND ASSOCIATED PROCESSES FIELD OF INVENTION

[0001] This disclosure relates, in general, to the field of cosmetics, in particular to a cleansing composition and, more specifically, to a composition and processes for instant and lasting skin lightening and detanning. BACKGROUND OF THE INVENTION

[0002] Due to increased exposure to the sun and pollution in the recent past, tanning and dullness of the skin are inevitable. Therefore, radiant and glowing skin requires an optimized skincare ritual. This is generally a multi-step process involving a kit including a cleanser, scrub, toner, mask, and moisturizer.

[0003] A powerful cleanser typically performs a deep clean to remove dirt and sebum from the surface. Exfoliation removes dead skin cells, lightening the tan and significantly reducing pigmentation. The detanning regimen results in tightened pores and hydration of the skin to retain moisture.

[0004] Many consumer products on the market claim to use a single cleanser to provide instant radiance in one step, replacing a lengthy skincare routine. However, cosmetic formulas cannot achieve several desired results at once. They must maintain soft, smooth skin while simultaneously providing instant and lasting sebum regulation and hydration for a non-drying feel, as well as a tanning and brightening effect.

[0005] Furthermore, there is a growing market demand for an easy-to-spread, highly foaming formula that rinses off easily, avoids leaving residue on the skin, and remains stable over a wide temperature range. The product should provide multiple benefits to the skin, improving complexion by targeting tanning and pigmentation from the first wash.

[0006] Therefore, there is a need for a cleansing formula with optimized stability and a pleasant texture, which not only provides instant tan removal and radiance, but also manages permanent sebum regulation and hydration, to obtain silky, smooth and radiant skin. Summary of the invention

[0007] In one aspect of this disclosure, a cleaning composition is proposed comprising: a) at least two fatty acids; b) at least one sulfate-based surfactant; c) at least one amphoteric surfactant; and d) at least one polymer, wherein the sulfate-based surfactant and the fatty acids are in a weight ratio range of 1:1 to 1:5.5.

[0008] In another aspect of this disclosure, a method for instant and lasting skin lightening and detanning is proposed, the method comprising the application of a cleansing composition comprising a) at least two fatty acids; b) at least one sulfate-based surfactant; c) at least one amphoteric surfactant; and d) at least one polymer, wherein the sulfate-based surfactant and the fatty acids are in a weight ratio range of 1:1 to 1:5.5, to form a foam and its rinsing.

[0009] In another aspect of this disclosure, it is proposed to use a cleaning composition comprising a) at least two fatty acids; b) at least one sulfate-based surfactant; c) at least one amphoteric surfactant; and d) at least one polymer, wherein the sulfate-based surfactant and the fatty acids are in a weight ratio range of 1:1 to 1:5.5, for cleaning and brightening a keratinous surface.

[0010] 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. The purpose of this summary is 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

[0011] Those skilled in the art will be aware that this disclosure is subject to variations and modifications other than those specifically described. It should be understood that this disclosure includes all such variations and modifications. The disclosure also includes all such steps, features, compositions, and compounds designated or indicated in this patent memorandum, individually or collectively, and any combination of one or more of these steps or features.

[0012] Definitions

[0013] For convenience, before describing this disclosure in more detail, certain terms used in the patent memorandum and examples are defined here. These definitions should be read in light of the rest of the disclosure and understood as by a person skilled in the art. The terms used here have meanings recognized and known to a person skilled in the art; however, for reasons of For convenience and completeness, specific terms and their meanings are presented below.

[0014] The terms “include” and “comprising” are used in an inclusive and open sense, meaning that additional elements may be included. They are not intended to be interpreted as “consists solely of”.

[0015] The expression "at least one" is used to mean one or more and therefore includes individual components as well as mixtures / combinations.

[0016] Throughout this patent memorandum, unless the context otherwise requires, the term "include", and variations such as "includes" and "comprising", shall be understood to imply the inclusion of any element or step or group of elements or steps stated, but not the exclusion of any other element or step or group of elements or steps.

[0017] The term "including" is used to mean "including but not limited to". "Including" and "including but not limited to" are used interchangeably.

[0018] The term "approximately" is used to denote an acceptable range of error for the particular value as determined by a person skilled in the art, which may depend in part on how the value is measured or determined, i.e., on the limitations of the measuring system. For example, "approximately" may mean within 1 or more standard deviations, according to industry practice. Where particular values ​​are described in this disclosure, unless otherwise indicated, the term "approximately" is to be assumed to mean within an acceptable range of error for the particular value.

[0019] 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.

[0020] All percentages, parts, and ratios are based on the total weight of the compositions in this disclosure, unless otherwise stated. Ratios, concentrations, quantities, and other numerical data may be presented herein in a range format. It should be understood that this range format is used solely for convenience and conciseness and should be interpreted flexibly as including not only the numerical values ​​explicitly stated as the range limits, but also as including all individual numerical values ​​or subranges encompassed within that range as if each numerical value and subrange were explicitly stated. For example, a percentage range of approximately 0.01% to 10% should be interpreted as including not only the explicitly stated limits of approximately 0.01% to approximately 10%, but also as including subranges, such as 0.01% to 5%, 6% to 10%, etc. %, and so on, as well as individual quantities, including fractional quantities, within specified ranges, such as 2.84% and 3%, for example.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by a person skilled in the art of this disclosure. Although all processes and materials similar or equivalent to those described herein may be used in the practice or testing of the disclosure, preferred processes and materials are hereby described.

[0022] This disclosure shall not be limited in scope by the specific embodiments described herein, which are intended for illustrative purposes only. Functionally equivalent products, compositions, and processes clearly fall within the scope of the disclosure as described herein.

[0023] The embodiments presented herein provide a composition, in particular a cleansing composition. The composition of this disclosure has a unique, transparent, serum-like texture, which is useful for providing skin brightening, tan removal, and long-lasting sebum regulation. The composition of this disclosure has a fluid texture and produces instant skin brightening from the first use. The composition produces a large amount of foam and is easily rinsed off the skin. The cleansing composition is stable at temperatures ranging from 4°C to 60°C. The composition also offers other benefits for the skin, such as preventing dryness, providing immediate radiance, and evening out skin tone, thus improving the overall complexion.The formula contains a specific combination of surfactants and fatty acids that provide instant and lasting brightening and also target tanning, a known concern for consumers in emerging markets. The formula's unique milky, serum-like texture makes it easy to spread on the skin and create a lather.

[0024] Various embodiments of this disclosure provide a method for treating a keratinous surface, such as skin. The methods of this disclosure provide an instant and lasting brightening and detanning effect on the skin. The composition and methods of this disclosure also reduce brown spots on the skin and advantageously provide skin softness, radiance, and a matte finish from the first use. The embodiments of this disclosure also provide the use of the composition for cleansing and brightening a keratinous surface, in particular skin. Composition

[0025] The composition, according to one embodiment herein, is a cleansing composition for a keratinous surface, in particular the skin. The composition provides an instant skin-brightening and detanning effect. In addition, the composition is gentle For the skin's lipids and proteins, it provides acne regulation and further offers enhanced skin benefits, such as sebum regulation, balanced hydration, an even skin tone, a reduction in acne marks, and a radiant, glowing complexion. Moreover, the composition, as described herein, has a serum-like texture, allowing for easy application with optimal lather, suitable for use with minimal water. The composition, as described herein, is lightweight, transparent, and stable even at higher temperatures for extended periods.

[0026] The composition of this disclosure is a cleansing composition comprising at least two fatty acids, at least one sulfate-based surfactant, at least one amphoteric surfactant, and at least one polymer. The composition of this disclosure comprises the sulfate-based surfactant and the fatty acids in a weight ratio range of 1:1 to 1:5.5. The composition, according to embodiments herein, comprises at least one deposition agent and at least one deposition aid. The composition, according to various embodiments herein, comprises at least one humectant, a chelating agent, a pH adjuster, a fragrance, a preservative, a cosmetic active ingredient, or combinations thereof. The cleansing composition is gentle on the skin and has a pH in the range of 7.5 to 12. The composition provides instant radiance and brightening to the skin. Fatty acid

[0027] The composition, according to the embodiments presented herein, includes at least two C10-C20 fatty acids which, through saponification, produce soaps and yield an oil-free composition with cleansing properties, thus helping to remove dirt, grease, and sebum from clogged pores of the skin. Two different types of C10-C20 or higher fatty alcohols may be used in combination. The fatty acids may be linear or branched, saturated or unsaturated, cyclic or acyclic.

[0028] The fatty acids may be selected in particular from C10-C20 fatty acids and in particular from lauric acid, myristic acid, stearic acid, palmitic acid or combinations thereof. Preferably, the fatty acids are a combination of lauric acid, myristic acid, stearic acid and palmitic acid.

[0029] The amount of C10-C20 fatty acids in the composition, according to the embodiments herein, may vary. The total amount of C10-C20 fatty acids, according to the embodiments herein, is present in the composition in a weight range of 0.01 to 20%, preferably 0.1 to 18%, and more preferably 5 to 15%, relative to the total weight of the composition. Sulfate-based surfactants

[0030] The composition, according to embodiments herein, comprises at least one sulfate-based surfactant.

[0031] The composition, according to embodiments herein, comprises at least one sulfate-based surfactant selected from alkyl ethersulfates, alkylsulfates, or combinations thereof, preferably selected from sodium laureth sulfate, ammonium lauryl sulfate, sodium lauryl sulfate, sodium dodecyl sulfate, or combinations thereof, and more preferably selected from sodium laureth sulfate, sodium lauryl sulfate, or combinations thereof.

[0032] In a particular embodiment, the sulfate-based surfactant is present in an amount ranging from 0.01 to 10% by weight, preferably from 1 to 5% by weight, relative to the total weight of the composition.

[0033] In another embodiment, the sulfate-based surfactant and the fatty acids are in a weight ratio range of 1:1 to 1:5.5, preferably 1:2 to 1:5 and more preferably 1:3 to 1:4. Amphoteric surfactant

[0034] The composition, according to embodiments herein, comprises at least one amphoteric surfactant.

[0035] 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 state, and cationic properties, under the conditions of use of the composition of this disclosure (e.g., medium, pH).

[0036] The amphoteric surfactant(s) used in the composition according to one embodiment herein 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 20 carbon atoms. According to one embodiment of this disclosure, the amphoteric surfactant is selected from (C8-C20 alkyl)betaines, sulfobetaines, a (C8-C20 alkyl)amido(C2-C8 alkyl)betaine, a (C8-C20 alkyl)amido(C2-C8 alkyl)sulfobetaine, (Cx acyl C12-acyl amphoacetates, (C8-C14 acyl)amphoglycinates, or combinations thereof.

[0037] In one embodiment, the (C8-C20 alkyl)betaines are selected from behenylbetaine, cetylbetaine, cocoylbetaine, decylbetaine, or their combinations. Among the alkylbetaines, cocoylbetaine is preferred, for example the products sold by the company Rhodia under the trade name Mirataine® BB / FLA.

[0038] In one embodiment, the amphoteric surfactants include the optionally quaternized amine derivatives, of structures (I) and (II) respectively shown below:

[0039] Ra-CON(Z)CH2 (CH2)m-N+(Rb)(Rc)(CH2COO) (I)

[0040] in which:

[0041] Ra represents a C10-C30 alkyl or alkenyl group, preferably an alkyl or alkenyl group present in hydrolyzed coconut oil, a heptyl group, a nonyl group or an undecyl group,

[0042] Rb represents a hydrogen, an alkyl group or [3-hydroxyethyl,

[0043] Rc represents a hydrogen, an alkyl or carboxymethyl group;

[0044] m is equal to 0, 1 or 2,

[0045] Z represents a hydrogen atom or a hydroxyethyl or carboxymethyl group;

[0046] Ra-CON(Z)CH2.(CH2)mN(B)(B') (II)

[0047] in which:

[0048] - B represents -CH2CH2OX', with X' representing -CH2-COOH, CH2-COOZ', -CH2 CH2-COOH, -CH2CH2-COOZ', or a hydrogen atom,

[0049] - B' represents -(CH2)Z-Y', with z = 1 or 2, and Y' representing -COOH, -COOZ', -CH2 -CHOH-SO3H or -CH2-CHOH-SO3Z',

[0050] - m' is equal to 0, 1 or 2,

[0051] - Z represents a hydrogen atom or a hydroxyethyl group or carboxymethyl,

[0052] - 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,

[0053] - 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.

[0054] In particular, according to one embodiment, the amphoteric surfactants may be an amphoteric surfactant based on betaine, for example, C8-C20 alkyl betaines, sulfobetaines, C8-C20 alkyl amido(C2-C8 alkyl) betaines, and C8-C20 alkyl amido(C2-C8 alkyl) sulfobetaines. Preferably, the amphoteric surfactants are selected from C8-C20 alkyl betaines, C8-C20 alkyl amido(alkyl in C2-C8)betaines, or their combinations. Preferably, the amphoteric surfactant is chosen from cocamidopropylbetaine (CAPB), cocoylbetaine, sodium cocoamphoacetate, laurylbetaine, sodium cocodiamphoacetate or their combinations.

[0055] In one embodiment, the amphoteric surfactant is present in the composition in a total quantity ranging from 0.01 to 10% by weight, preferably from 0.1 to 5% by weight, relative to the total weight of the composition.

[0056] In one embodiment, the combined weight of the sulfate-based surfactant with the amphoteric surfactant and fatty acids is within a weight ratio range of 1:1 to 1:2.1, preferably 1:1.2 to 1:2.05, and more preferably 1:1.5 to 1:2.05. Polymer

[0057] The composition, according to the embodiments herein, includes one or more polymers. The polymers within the composition provide a skin-smoothing effect.

[0058] The composition, according to embodiments herein, includes one or more polymers selected from hydroxyalkylcellulose, xanthan gum, acrylates, inulins, celluloses, xyloses, cellobiose, maltodextrin, scleroglucan, chitosan, ulvan, fucoidan, alginate, pectin, heparin, or combinations thereof, preferably selected from hydroxyalkylcellulose, xanthan gum, acrylates, or combinations thereof. In one particular embodiment, the polymer is selected from hydroxypropylmethylcellulose, an acrylate copolymer, xanthan gum, or combinations thereof.

[0059] In one embodiment, the polymer present in the composition, according to the embodiments herein, may vary. The polymer, according to the embodiments herein, may be present in the composition in an amount ranging from 0.01% to 20% by weight, preferably from 0.1% to 10% by weight, more preferably from 0.1% to 7% by weight, relative to the total weight of the composition. Deposit asset

[0060] The composition, according to the embodiments herein, includes one or more deposition agents. The deposition agents in the composition provide skin-whitening effects upon application to the skin surface.

[0061] The composition, according to embodiments herein, comprises at least one deposition agent selected from titanium dioxide, zinc oxide, magnesium oxide or combinations thereof.

[0062] According to embodiments herein, the deposition agent is titanium dioxide having a primary particle size in the range of 0.10 pm to 0.30 pm.

[0063] According to preferred embodiments herein, the deposition agent is titanium dioxide, for example of grade PF-671, having a primary particle size of 0.21 pm.

[0064] The amount of deposit asset in the composition, according to the embodiments herein, may vary. The deposit asset, according to the embodiments herein, is present in the composition in an amount ranging from 0.1% to 10% by weight, preferably from 1% to 5% by weight relative to the total weight of the composition. Depositary assistant

[0065] The composition, according to embodiments herein, comprises one or more deposition auxiliaries.

[0066] The composition, according to the embodiments presented herein, comprises at least one deposition agent. The deposition agent in the composition aids in the accumulation of a deposition agent on the skin surface and thus provides skin-brightening effects. Examples of deposition agents include, but are not limited to, polybutene, starch, hectorite, or mixtures thereof.

[0067] In a particular embodiment, the deposition agent is a polybutene.

[0068] The amount of deposition agent in the composition, according to the embodiments herein, may vary. The deposition agent, according to the embodiments herein, is present in the composition in an amount ranging from 0.1% to 10% by weight, preferably from 1% to 5% by weight relative to the total weight of the composition. Additives

[0069] The composition, according to embodiments shown herein, comprises additives selected from a humectant, a chelating agent, a pH adjuster, perfumes, a preservative, a cosmetic active ingredient, or combinations thereof. Examples of additives include, but are not limited to, sorbitol, mannitol, xylitol, maltitol, maltitol syrup, lactitol, erythritol, isomalt, glycerin, propylene glycol, tetrasodium glutamate diacetate, ethylenediaminetetraacetic acid, essential oils, phenoxyethanol, sodium chloride, etc.

[0070] It is understood that a person skilled in the art will take care to select the optional additives and / or their quantity 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. Water

[0071] The composition, according to embodiments herein, includes water in a weight range of 30 to 90%, preferably 40 to 85%, more preferably 50 to 80%, relative to the total weight of the composition. Use and method

[0072] A composition, according to the embodiments herein, may more particularly be a composition for cleaning keratinous surfaces, such as human skin. Preferably, the composition, according to the embodiments presented herein, is a composition for cleansing and brightening the skin. More preferably, the composition provides an instant brightening and detanning effect on the skin after the first use, and also significantly reduces dark spots on the skin. Consequently, the composition, in various embodiments presented herein, can be a facial cleanser, a cleansing serum, a makeup remover, a cleansing milk, a facial scrub, a clay face mask, a skin cleansing balm, a micellar solution, or a liquid cleanser.

[0073] In one embodiment, the composition is a liquid cleanser having a transparent, fluid texture. According to the embodiments presented herein, the composition can preferably be applied to the skin with water, then worked into a foam and rinsed off. It is possible to leave the composition, according to this disclosure, on the keratinous surface for a certain period, such as a few minutes, after its application to the keratinous surface and before rinsing, to enhance the desired skin benefits.

[0074] Although this disclosure has been described in great detail with reference to certain embodiments and their implementations, other embodiments are possible to cover modifications and variations to this disclosure. EXAMPLES

[0075] 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.

[0076] 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

[0077] The compositions were prepared by mixing appropriate quantities of the components listed in Table 1 below. In one example, the Al cleaning composition was prepared by mixing fatty acids, i.e. 5.03% by weight of myristic acid, 5% by weight of lauric acid, 1% by weight of stearic acid and 0.44% by weight of palmitic acid, a sulfate-based surfactant, i.e. 2.80% by weight of sodium laureth sulfate, an amphoteric surfactant, i.e. 2.66% by weight of cocamidopropyl betaine, 0.4% by weight of hydroxypropyl ethylcellulose, 2.50% by weight of polybutene, 2.50% by weight of titanium dioxide and other components as mentioned in Table 1. Similarly, compositions A2, B1, B2, B3, B4, B5 and B6 were prepared using the components mentioned in Table 1 below.

[0078] [Table 1] Table 1 Composition Al A2 Bl B2 B3 B4 B5 B6 Glycerin 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.01 Myristic acid 5.03 5.03 9 8.5 5 9 3.6 3.63 Lauric acid 5.00 5.00 8 7.5 4 8 4.5 4.50 Titanium dioxide 2.50 3.00 2.50 2.50 2.50 2.50 2.50 2.50 Potassium hydroxide 2.83 2.83 2.83 2.83 2.83 2.83 2.83 2.85 Sodium laureth sulfate 2.80 2.80 2.8 2.8 1.5 2.8 - - Acrylates copolymer 2.70 2.70 2.70 2.70 2.70 2.70 2.70 2.61 Cocamidopropyl betaine 2.66 2.66 2.7 2.7 3 2.7 4.5 - Polybutene 2.50 2.50 2.50 2.50 2.50 2.50 2.50 - Perfume 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 Phenoxyethanol 0.70 0.70 0.70 0.70 0.70 0.70 0.70 0.70 Stearic acid 1 1 1 1 1 1 1 1 Chloride Sodium 0.49 0.49 0.49 0.49 0.49 0.49 0.49 0.98 Palmitic acid 0.44 0.44 0.44 0.44 0.44 0.44 0.44 0.44 Hydroxypropyl methylcellulose 0.40 0.40 0.40 0.40 0.40 0.40 0.40 - Xanthan gum 0.20 0.20 0.20 0.20 0.20 0.20 0.20 - Tetrasodium glutamate diacetate 0.19 0.19 0.19 0.19 0.19 0.19 0.19 - Lemon (Citrus) Fruit Extract 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 Citric Acid 0.02 0.02 0.02 0.02 0.02 0.02 0.02 - Ascorbyl Glucoside 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 Caprylyl Glycol - - - - - - - - Sodium Lauroyl Sarcosinate - - - - - - - - Aluminum Hydroxide - - - - - - - - Sodium Benzoate - - - - - - - - Propylene Glycol - - - - - - - 1.00 Glycol Distearate - - - - - - - 0.50 Coco-Betaine - - - - - - - 4.50 Salicylic acid - - - - - - - 0.01 Silica - - - - - - - Capryloyl salicylic acid - - - - - - - 0.02 Glycolic acid - - - - - - - 0.01 Niacinamide - - - - - - - 0.50 Boron nitride - - - - - - - - Water qs qs qs qs qs qs qs qs qs Weight ratio of sulfate-based surfactant to fatty acids 4.10 4.10 6.59 6.23 6.96 6.59 NA* Absence of sulfate-based surfactant Weight ratio of total surfactants to fatty acids 2.10 2.10 3.35 3.17 2.32 3.35

[0079] The prepared compositions were transformed into foam and the volume of foam was observed. The observed stability and texture of the prepared compositions are presented in Table 2 below.

[0080] [Table 2] Table 2 Stability and texture of compositions A1 & A2 Serum texture, creamy and good foam volume B1 Unstable foam, very low viscosity B2 Unstable foam, very low viscosity B3 Unstable formula, unstable foam, reduced foam volume and density B4 Thickened formula, not the texture of a serum B5 Watery liquid texture, very reduced foam volume and density

[0081] It can be observed that the weight ratio between the sulfate-based surfactant and the fatty acids is significant for the serum-like texture and the stability of the composition. Reduced amounts of fatty acids resulted in an unstable composition (as observed in compositions B3 and B5), and higher amounts of fatty acids relative to the surfactants led to an unstable serum-like texture and resulted in thickening of the composition (as observed in composition B4). Thus, the fatty acids and surfactants synergistically produce a stable serum-like composition with the desired foam volume and density. Example 2 Instant Clarification

[0082] The brightening effect of the composition was tested by measuring skin color and skin radiance.

[0083] Protocol: Twenty healthy Indian women were recruited for the trial. Skin color and skin radiance measurements were performed using a spectrophotometer and Lightcam instruments, respectively, under controlled conditions. All women were asked to apply the test compositions (500 mg / half of the face) and were asked to wait 4 hours on site. Subsequent real-time and instrumental parameters, such as color and radiance, were then measured. Changes in the color reference scores, i.e., color shift (dE) and radiance (Gc), were measured. Measurements were taken immediately after washing, after 30 minutes, 1 hour, 2 hours, and 4 hours, and the results are presented in Tables 2 and 3 below.

[0084] [Table 3] Table 2 Compositions dE_T0 dE_T30 dE_Tlhr dE_2hr dE_4hr Al 0.54 0.56 0.58 0.42 0.72 A2 0.53 0.48 0.47 0.55 0.61 B6 0.57 0.64 0.60 0.70 0.74

[0085] It can be noted that the composition according to the present disclosure worked at parity at all times, while composition B6 showed a significant increase in dE values ​​confirming the decrease in the shine and radiance of the skin.

[0086] [Table 4] Table 3 Compositions Gc_T0 Gc _T30 Gc _Tlhr Gc _2hr Gc_4hr Al -5.37 -4.57 -4.26 -3.21 -2.11 A2 -5.37 -4.24 -4.23 -3.22 -1.91 B6 -5.94 -5.47 -5.13 -4.37 -2.97

[0087] Gloss measurements have shown that the compositions of this disclosure deliver instant gloss as well as lasting gloss for a longer period. Control gloss measurements have confirmed that the composition of this disclosure does not exhibit a significant reduction in gloss and that the composition provides a glossy effect for up to 2 to 4 hours.

[0088] Thus, the data in Tables 2 and 3 illustrate the lasting brightness effect over a prolonged period of time. Tanning effectiveness

[0089] The composition of this disclosure has been tested for tanning efficacy by persistent pigmentation (PPD) measurements.

[0090] Protocol: 22 healthy Indian women with average skin were recruited for the trial, and measurements were taken using a spectrophotometer. The women were not exposed to direct sunlight for approximately 7 days. After 7 days, the unexposed skin was subjected to brightness measurements, i.e., a T-0 (L*) measurement was taken. Following this, for approximately 15 minutes, the women were exposed to controlled UV light to induce skin pigmentation, and a T-imm measurement was taken. After 24 hours, a new instrumental L* measurement was taken to record a PPD baseline. Then, the composition (Al) was applied to the skin according to the standard application procedure for 7 days, and measurements were taken on days 3 and 7.

[0091] It was observed that the Al composition exhibited a significant reduction in tanning (PPD) after 3 and 7 days of use. After 3 and 7 days of use, the PPD (tanning loss) was found to be 0.19 and 0.52, respectively, which confirmed a significant reduction in tanning loss. BENEFITS OF THIS DISCLOSURE

[0092] This disclosure proposes a cleansing composition comprising a combination of fatty acids and a combination of surfactants, as well as a polymer. The cleansing composition of this disclosure is a transparent serum that provides instant and lasting radiance and luminosity. The composition of this disclosure provides an instant tanning and brightening effect. The composition is highly foaming, easy to rinse off, and suitable for a wide range of skin tones. The cleansing composition also leaves the skin soft and smooth, while instantly and lastingly regulating sebum and protecting it from dryness. The composition of this disclosure provides multiple benefits for the skin, such as sebum regulation, soft and supple skin, radiance, tanning, and a non-drying sensation.

Claims

Demands

1. Cleaning composition comprising: a. at least two fatty acids; b. at least one sulfate-based surfactant; c. at least one amphoteric surfactant; and d. at least one polymer, wherein the sulfate-based surfactant and the fatty acids are in a weight ratio range of 1:1 to 1:5.

5.

2. Composition according to claim 1, wherein the combined weight of the sulfate-based surfactant with the amphoteric surfactant and fatty acids is in a weight ratio range of 1:1 to 1:2.

1.

3. Composition according to claim 1 or 2, wherein the fatty acids are selected from the C1O-C2O fatty acids, preferably from lauric acid, myristic acid, stearic acid, palmitic acid, or combinations thereof; preferably the fatty acids are in an amount from 0.01 to 20% by weight, preferably from 0.1 to 18% by weight, relative to the total weight of the composition.

4. Composition according to any one of the preceding claims, wherein the sulfate-based surfactant is selected from alkyl ethersulfates, alkylsulfates, or combinations thereof, preferably selected from sodium laureth sulfate, ammonium lauryl sulfate, sodium lauryl sulfate, sodium dodecyl sulfate, or combinations thereof; preferably the sulfate-based surfactant is in an amount from 0.01 to 10% by weight, preferably from 1 to 5% by weight, relative to the total weight of the composition.

5. A composition according to any one of the preceding claims, wherein the amphoteric surfactant is selected from C8-C20 alkyl betaines, a sulfobetaine, a C8-C20 alkyl amido(C2-C8 alkyl)betaine, a C8-C20 alkyl amido(C2-C8 alkyl)sulfobetaine, C8-C14 acyl amphoacetates, C8-C14 acyl amphoglycinates, or combinations thereof, preferably selected from cocamidopropyl betaine, cocobetaine, sodium cocoamphoacetate, lauryl betaine, sodium cocodiamphoacetate, or combinations thereof; preferably the amphoteric surfactant is in an amount ranging from 0.01 to 10 % by weight, preferably from 0.1 to 5% by weight, relative to the total weight of the composition.

6. Composition according to any one of the preceding claims, wherein the polymer is selected from hydroxyalkylcellulose, xanthan gum, acrylates, inulins, celluloses, xyloses, cellobiose, maltodextrin, scleroglucan, chitosan, ulvan, fucoidan, alginate, pectin, heparin, or combinations thereof, preferably selected from hydroxyalkylcellulose, xanthan gum, acrylates, or combinations thereof; preferably the polymer is in an amount from 0.01 to 20% by weight, preferably from 0.1 to 10% by weight, relative to the total weight of the composition.

7. Composition according to any one of the preceding claims, wherein the composition comprises at least one deposition agent and at least one deposition aid; preferably the deposition agent is selected from titanium dioxide, zinc oxide, magnesium oxide, or combinations thereof; and preferably the deposition aid is selected from polybutene, starch, hectorite, or combinations thereof; preferably the deposition agent is in an amount from 0.1 to 10% by weight relative to the total weight of the composition; preferably the deposition aid is in an amount from 0.1 to 10% by weight relative to the total weight of the composition.

8. Composition according to any one of the preceding claims, wherein the composition comprises at least one additive selected from a humectant, a chelating agent, a pH adjuster, perfumes, a preservative, a cosmetic active, or combinations thereof; and preferably the composition has a pH in the range of 7.5 to 12; and preferably the composition provides a brightening and detanning effect after use.

9. A method for instant and lasting skin lightening and detanning, the method comprising applying the cleansing composition according to any one of the preceding claims to the skin to form a foam and rinsing it off.

10. Use of the composition according to claims 1 to 9, for cleaning and brightening a keratinous surface.