FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION (See section 10, rule 13)
1. Title of the invention: A COSMETIC COMPOSITION FOR ACNE CONTROL AND
METHODS THEREOF
2. Applicant(s)
NAME NATIONALITY ADDRESS
L'OREAL French 14, rue Royale 75008 PARIS, FRANCE
3. Preamble to the description
COMPLETE SPECIFICATION
The following specification particularly describes the invention and the manner in which it
is to be performed.

FIELDOFINVENTION
[0001] The present disclosure relates to the field of cosmetic compositions, in particular, relates to compositions for acne control. The present disclosure also relates to the process of preparing the composition and a method for treating acne.
BACKGROUNDOFINVENTION
[0002] Acne is the most common skin condition that affects people of all ages and races. Specifically, acne is an inflammatory condition, wherein the hair follicles gets clogged with dead skin cells and excess oil. Further, the clogged hair follicles provides a nutritious milieu for skin bacteria to thrive and cause inflammation in the form of swelling, redness, heat, and pain. In worst case, the wall of clogged follicles ruptures, releasing the dead skin cells and bacteria on to the neighbouring skin, resulting in lesions or pimples, which later transform into acne marks, causing either temporary or even permanent textural irregularities of the skin. Thus, acne causes mental stress especially for teenagers and youngsters alike.
[0003] Severe cases of acne incidence require medical intervention. However, for early and mild cases of acne, consumers prefer to use over the counter cosmetic or dermatological products for quick relief of inflammation as well as to get rid of acne marks.
[0004] Though there are several acne control products in market, which aims to treat acne based on skin peeling, tend to be harsh and suffer from product instability and poor sensorial aspects. Also, such products are not effective in providing dual benefits of treating existing acne and reducing past acne marks.
[0005] Therefore, there exists a need for an all-in-one acne control product to effectively control acne, reduce acne marks, provide even and brighter skin tone, along with sensorial comfortability.

SUMMARYOFTHEINVENTION
[0006] The present invention relates to a composition comprising: (a) at least one polymer; (b) two or more alpha hydroxy acids; and (c) at least one poly(hydroxy) acid, wherein the alpha hydroxy acid has 2 to 4 carbon atoms; and the two or more alpha hydroxy acids and the poly(hydroxy)acid is in a weight ratio range of 3:2 to 1.5:0.5.
[0007] Another object of the invention is a method for treating a keratin material, preferably the skin, comprising the step of applying the composition comprising: (a) at least one polymer; (b) two or more alpha hydroxy acids; and (c) at least one poly(hydroxy) acid, on the skin, wherein the alpha hydroxy acid has 2 to 4 carbon atoms; and the two or more alpha hydroxy acids and the poly(hydroxy) acid is in a weight ratio range of 3:2 to 1.5:0.5.
[0008] Another object of the invention is the use of the composition comprising: (a) at least one polymer; (b) two or more alpha hydroxy acids; and (c) at least one poly(hydroxy) acid, for treating acne on the skin, wherein the alpha hydroxy acid has 2 to 4 carbon atoms; and the two or more alpha hydroxy acids and the poly(hydroxy)acid is in a weight ratio range of 3:2 to 1.5:0.5.
[0009] Another object of the invention is a method of treating acne on skin, the method comprising: applying the composition as described herein on the skin. [0010] These and other features, aspects, and advantages of the present subject matter will be better understood with reference to the following description and appended claims. This summary is provided to introduce 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 is it intended to be used to limit the scope of the claimed subject matter.
DETAILEDDESCRIPTIONOFTHEINVENTION
[0011] Those skilled in the art will be aware that the present disclosure is subject to variations and modifications other than those specifically described. It is to be

understood that the present disclosure includes all such variations and
modifications. The disclosure also includes all such steps, features, compositions,
and compounds referred to or indicated in this specification, individually or
collectively, and any and all combinations of any or more of such steps or features.
Definitions
[0012] For convenience, before further description of the present disclosure, certain
terms employed in the specification, and examples are delineated here. These
definitions should be read in light of the remainder of the disclosure and understood
as by a person of skill in the art. The terms used herein have the meanings
recognized and known to those of skill in the art, however, for convenience and
completeness, particular terms and their meanings are set forth below.
[0013] The articles “a”, “an” and “the” are used to refer to one or to more than one
(i.e., to at least one) of the grammatical object of the article.
[0014] The terms “comprise” and “comprising” are used in the inclusive, open
sense, meaning that additional elements may be included. It is not intended to be
construed as “consists of only”.
[0015] The term "at least one" is used to mean one or more and thus includes
individual components as well as mixtures/combinations.
[0016] Throughout this specification, unless the context requires otherwise the
word “comprise”, and variations such as “comprises” and “comprising”, will be
understood to imply the inclusion of a stated element or step or group of element or
steps but not the exclusion of any other element or step or group of element 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 “about” is used to mean an acceptable error range for the particular
value as determined by one of ordinary skill in the art, which can depend in part on
how the value is measured or determined, i.e., the limitations of the measurement
system. For example, "about" can mean within 1 or more than 1 standard deviation,
per the practice in the art. Where particular values are described in the present
disclosure, unless otherwise stated the term "about" meaning within an acceptable
error range for the particular value should be assumed.

[0019] The term “INCI” is an abbreviation of 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] The term “salicylic acid free composition” or “composition free of salicylic acid” as used herein, means that the cosmetic composition as disclosed herein is essentially free of salicylic acid containing ingredients. In particular, “essentially free of any salicylic acid containing ingredients” means that the salicylic acid containing ingredients may be present in the composition in an amount less than 0.5% by weight relative to the total weight of the composition, preferably less than 0.1% by weight relative to the total weight of the composition. Preferably, the composition is completely free of salicylic acid.
[0021] The term “silicone free composition” or “composition free of silicone” as used herein, means that the cosmetic composition as disclosed herein is essentially free of silicone containing ingredients. In particular, “essentially free of any silicone containing ingredients” means that the silicone containing ingredients may be present in the composition in an amount of less than 0.5% by weight relative to the total weight of the composition, preferably less than 0.1% by weight relative to the total weight of the composition. Preferably, the composition is completely free of silicone.
[0022] All percentages, parts and ratios are based upon the total weight of the compositions of the present disclosure unless otherwise indicated. Ratios, concentrations, amounts, and other numerical data may be presented herein in a range format. It is to be understood that such range format is used merely for convenience and brevity and should be interpreted flexibly to include not only the numerical values explicitly recited as the limits of the range, but also to include all the individual numerical values or sub-ranges encompassed within that range as if each numerical value and sub-range is explicitly recited. For example, a percentage range of about 0.05 % to 5 % should be interpreted to include not only the explicitly recited limits of about 0.05 % to about 5 %, but also to include sub-ranges, such as 1% to 4 %, 3 % to 5%, and so forth, as well as individual amounts, including

fractional amounts, within the specified ranges, such as 2.84 %, and 3 %, for example.
[0023] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. Although any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the disclosure, the preferred methods and materials are now described. All publications mentioned herein are incorporated herein by reference.
[0024] The present disclosure is not to be limited in scope by the specific embodiments described herein, which are intended for the purposes of exemplification only. Functionally equivalent products, compositions, and methods are clearly within the scope of the disclosure, as described herein.
[0025] The present invention relates to a composition, preferably a cosmetic composition for treating a keratin material. The disclosed embodiments include a composition, a method for treating a keratin material, and a use of the composition for treating acne on the skin and the associated method of treating acne on the skin. In various embodiments herein, the composition as disclosed herein has improved cosmetic properties, which addresses the drawbacks of existing acne control products. Generally, acne control products which are of low pH, may be harsh, sticky, and non-suitable for prolonged use due to the inappropriate use of peeling agents and smoothening actives. Also, cosmetic products claiming high level of alpha hydroxy acids (AHAs) and polyhydroxy acids (PHAs) at low pH may suffer from product instability and high irritancy issues. Hence, the composition according to the invention herein is transparent, stable across all temperatures even with a low pH, -along with being fast absorbing on the skin. Significantly, the composition provides instant oil control with effective acne control and over consistent usage, aids in improved hydration, thereby resulting in a clear glowing skin free from acne marks and spots. Additionally, the composition has positive sensorial aspects, such as non-sticky feel, water breaking effect and non-noodling feel post use with no reported irritancy.

[0026] Preferably, the composition according to the invention is free of salicylic acid and free of silicone.
Composition
[0027] The composition, according to the invention, is a cosmetic composition for treating acne on a keratin material, in particular the skin. Further, apart from acne control, the composition, according to an embodiment herein offers enhanced skin benefits, such as instant and long lasting oil control, balanced hydration, even skin tone, reduction of acne marks and glow. The composition comprises at least one polymer; two or more alpha hydroxy acids; at least one poly(hydroxy) acid; wherein the alpha hydroxy acid has 2 to 4 carbon atoms; and the two or more alpha hydroxy acids and the poly(hydroxy) acid is in a weight ratio range of 3:2 to 1.5:0.5, preferably in a weight ratio range of 2.9:1.6 to 1.5:0.8, more preferably 2:1 to 1:0.8; and the composition has a pH in a range of 3 to 6, preferably 3.5 to 5.5. The composition may also comprise a polyol, an alcohol, a surfactant, and an anti-acne active. The composition may further include an additive selected from a UV filter, a moisturizer, an antioxidant, a conditioning agent, a humectant, a fragrance, a pH modifier, a carrier, a lubricant, or mixtures thereof.
Polymer
[0028] The composition, according to the invention, includes at least one polymer.
Preferably the polymer is a polysaccharide.
[0029] Examples of polymer that can be used include but not limited to
hydroxyalkyl cellulose, inulins, celluloses, starches, guar gums, xanthan gums,
pullulan gums, alginate gums, agar-agar gums, carrageenan gums, gellan gums,
gum arabics, xyloses, tragacanth gums, cellobiose, maltodextrin, scleroglucan,
chitosan, ulvan, fucoidan, alginate, pectin, heparin, or mixtures thereof.
[0030] Non-limiting examples of gums include acacia, agar, algin, alginic acid,
ammonium alginate, amylopectin, calcium alginate, calcium carrageenan, carnitine,
carrageenan, dextrin, gelatin, gellan gum, pullulan gum, guar gum, hectorite,
hydroxypropyl guar gum, karaya gum, kelp gum, locust bean gum, natto gum,
potassium alginate, potassium carrageenan, propylene glycol alginate, sclerotium

gum, sodium carboxymethyl dextran, sodium carrageenan, tragacanth gum, xanthan gum, dehydroxanthan gum, and biosaccharide gum. Modified gums or derivatives of gums may also be used, such as, for example, deacylated gellan gum, welan gum, or hydroxypropylated guar gum, such as Jaguar HP 105 sold by Rhodia. [0031] Non-limiting examples of celluloses include hydroxyalkyl celluloses, such as hydroxy methylcellulose, methyl hydroxyethyl cellulose, hydroxy ethyl celluloses, hydroxy propyl methyl cellulose, hydroxy butyl cellulose, hydroxy ethyl methyl cellulose (also known as methyl hydroxy ethyl cellulose) or hydro propyl celluloses, which may or may not contain a fatty chain. One particularly suitable hydroxy propyl methyl cellulose is Methocel F4M sold by Dow Chemicals (INCI name: hydroxy propyl methyl cellulose). Celluloses modified with groups comprising one or more nonionic fatty chains that can be used include hydroxy ethyl celluloses, preferably non-ionic hydroxy ethyl celluloses, modified by groups comprising at least one fatty chain, such as alkyl, arylalkyl or alkylaryl groups, or their mixtures, and in which the alkyl groups are preferably C8-C22 alkyl groups, such as the product NATROSOLTM Plus Grade 330 CS (C16 alkyls), sold by Aqualon, corresponding to the INCI name cetyl hydroxy ethyl cellulose, or the product BERMOCOLL® EHM 100 sold by Berol Nobel, and those modified with alkyl phenyl poly alkylene glycol ether groups, such as the product AMERCELL POLYMER® HM-1500 (nonyl phenyl polyethylene glycol (15) ether) sold by Amerchol that corresponds to the INCI name nonoxynyl hydroxy ethyl cellulose.. [0032] Non-limiting examples of starches include modified starches, starch-based polymers, methyl hydroxy propyl starch, potato starch, modified potato starch, wheat starch, rice starch, starch crosslinked with octenyl succinic anhydride, starch oxide, dialdehyde starch, dextrin, acetyl starch, starch phosphate, carboxymethyl starch, hydroxyethyl starch, and hydroxypropyl starch.
[0033] Preferably, the polymer is chosen from hydroxy alkyl cellulose, inulins, celluloses, starches, guar gums, xanthan gums, pullulan gums, alginate gums, agar-agar gums, carrageenan gums, gellan gums, gum arabics, xyloses, tragacanth gums,

cellobiose, maltodextrin, scleroglucan, chitosan, ulvan, fucoidan, alginate, pectin,
heparin, or mixtures thereof.
[0034] More preferably, the polymer is selected from hydroxy alkyl cellulose or
hydroxypropyl guar gum and their mixtures thereof, more preferably the polymer
is selected from hydroxy alkyl cellulose such as hydroxyethyl cellulose.
[0035] The amount of polymer in the composition, according to the invention, may
vary. The polymer, according to the invention, may be present in the composition
in a weight range of 0.05 to 5%, preferably 0.1 to 3wt%, more preferably 0.1 to 1
wt %, more preferably 0.1 to 0.7 wt % with respect to total weight of the
composition.
Alpha Hydroxy Acid
[0036] The composition, according to the invention, includes at least two or more alpha hydroxy acids, wherein the alpha hydroxy acid has 2 to 4 carbon atoms. [0037] Preferably, the alpha hydroxy acid is of general formula(I):
wherein
R is OH;
R1 is selected from H, OH, CH2-COOH or C1-C2 alkyl which is optionally
substituted;
R2 is H, COOH, CHOH-COOH, CF3, CH═CH2, NHCONH2, or C1-C2 alkyl
optionally substituted with a radical chosen from OH, Cl, NH2, COOH, CF3, or
SCH3; or
R1 and R2 may also together form an oxo radical (═O) or a cyclopropyl with the
carbon atom that bears them, or alternatively a radical
[0038] Preferably, the alpha hydroxy acid is chosen from glycolic acid, oxalic acid,
lactic acid, 1-hydroxy-1-cyclopropanecarboxylic acid, 2-hydroxy-3-butenoic acid,

2-hydroxyisobutyric acid, 2-hydroxy-n-butyric acid, isoserine, glyceric acid, 4-
amino-2-hydroxybutyric acid, dihydroxyfumaric acid, , tartaric acid, glyoxylurea,
2-trifluoromethyl-2-hydroxypropionic acid, tartronic acid, tartaric acid, |3-
chlorolactic acid, malic acid, and the stereoisomers, organic or mineral salts and
solvates thereof.
[0039] Preferably, the alpha hydroxy acid is of general formula (I) wherein:
R is OH;
R1 is H, OH, NH2, CH2-COOH or C1-C2 alkyl such as methyl, or ethyl and R2 is
H, COOH, CHOH-COOH, CH2OH, CH2NH2, CH2Cl, NHCONH2 or CF3; or
R1 and R2 may also together form an oxo radical (=0) or a cyclopropyl with the
carbon atom that bears them, or alternatively a radical
[0040] Preferably, the alpha hydroxy acid is of general formula (I) wherein:
R is OH,
R1 is H, OH, NH2, CH2-COOH or C1-C2 alkyl such as methyl, or ethyl, and R2 is
H.
[0041] More preferably, the alpha hydroxy acid is chosen from glycolic acid, L-
lactic acid, DL-lactic acid, D-lactic acid, oxalic acid, malic acid, tartaric acid, DL-
glyceric acid, or mixtures thereof.
[0042] In one embodiment the alpha hydroxy acid may be chosen from salt form of
the acids. The type of the salt is not limited. Examples of the salt include but not
limited to alkaline metal salts such as sodium salt and potassium salt; alkaline earth
metal salts such as calcium salt and magnesium salt; zinc salts; iron salts;
ammonium salts; amine salts such as monoethanolamine salt, diethanolamine salt
and triethanolamine salt; and mixtures thereof. If two or more salts are used, they
may be the same or different.
[0043] Even more preferably, the alpha hydroxy acid is chosen from glycolic acid,
L-lactic acid, DL-lactic acid, D-lactic acid, and their mixtures.
[0044] The amount of two or more alpha hydroxy acid in the composition,
according to the invention, may vary. The two or more alpha hydroxy acidmay be

present in the composition in a weight range of 0.1 to 10 wt %, preferably 0.1 to 8 wt %, more preferably 0.1 to 5 wt % with respect to total weight of the composition.
Poly(hydroxy)acid
[0045] The composition, according to the invention, includes at least one
poly(hydroxy)acid.
[0046] The term “poly(hydroxy)acid” used herein means an organic compound
which has at least one carboxyl group and a plurality of hydroxy groups. The
number of carboxyl groups in the poly(hydroxy)acid is not limited, but one or two
carboxyl groups are preferable, and one carboxyl group is more preferable. The
number of hydroxyl groups in the poly(hydroxy)acid is also not limited, but 2 to 10
are preferable, and 2 to 6 are more preferable. The number of carbon atoms in the
poly(hydroxy)acid is not limited, but 3 to 11 are preferable, and 3 to 8 are more
preferable.
[0047] The above organic compound may be aliphatic or aromatic. In other words,
the poly(hydroxy)acid may be selected from aliphatic poly(hydroxy)acids or
aromatic poly(hydroxy)acids. It is preferable that the aliphatic poly(hydroxy)acid
be selected from sugar acids.
[0048] Examples of the poly(hydroxy)acid include, but not limited to dihydroxy
propanoic acid such as glyceric acid; trihydroxy butanoic acid such as erythronic
acid and threonic acid; tetrahydroxy pentanoic acid such as ribonic acid, arabinoic
acid, xylonic acid, and lyxonic acid; pentahydroxy hexanoic acid such as allonic
acid, altronic acid, gluconic acid, mannoic acid, gulonic acid, idonic acid,
galactonic acid, and talonic acid; hexahydroxy heptanoic acid such as
glucoheptanoic acid, galactoheptonic acid; tartaric acid; lactobionic acid,
maltobionic acid, and mixtures thereof.
[0049] It is preferable that the poly(hydroxy)acid be in the form of a lactone. The
lactone ring of the poly(hydroxy)acid in the form of a lactone may be saturated.
Examples of the poly(hydroxy)acid include, gluconolactone, ribonolactone, and
mixtures thereof.
[0050] It is more preferable that the poly(hydroxy)acid be gluconolactone.

[0051] In one embodiment the poly hydroxy acid may be chosen from salt form of the acids. The type of the salt is not limited. Examples of the salt include but not limited to alkaline metal salts such as sodium salt and potassium salt; alkaline earth metal salts such as calcium salt and magnesium salt; zinc salts; iron salts; ammonium salts; amine salts such as monoethanolamine salt, diethanolamine salt and triethanolamine salt; and mixtures thereof. Sodium salt is preferable. If two or more salts are used, they may be the same or different.
[0052] The amount of poly(hydroxy)acid in the composition may vary. The poly(hydroxy)acid, according to the invention, may be present in the composition in a weight range of 0.1 to 10%, preferably 0.2 to 7 wt %, more preferably 0.5 to 5 wt %, most preferably 1 to 3 wt % with respect to total weight of the composition.
Anti-acne active
[0053] The composition, according to the invention, includes an anti-acne active. [0054] The term “anti-acne active” used herein means any active agent that has effects on the specific flora of greasy skin, for instance Propionibacterium acnes (P. acnes). These effects may be bactericidal.
[0055] Examples of anti-acne active include but not limited to niacinamide, niacin, and nicotinic acid esters; peroxides, including benzoyl peroxide, stabilized hydrogen peroxide and peroxides of organic acids, such as a lauroyl peroxide; metal gluconate, such as zinc gluconate, copper gluconate or their mixtures; asiatic acid, the monoethanolamine salt of 1-hydroxy-4-methyl 6-trimethylpentyl-2-pyridone (INCI name: piroctone olamine), marketed especially under the trademark Octopirox® by Clariant, citronellic acid, perillic acid (or 4-isopropenylcyclohex-1-enecarboxylic acid), glyceryl 2-ethylhexyl ether (INCI name: ethylhexylglycerine), for example marketed under the trademark Sensiva SC 50® by Schulke & Mayr, -10-hydroxy-2-decanoic acid such as Acnacidol P® from Vincience, sodium ursolate, azelaic acid, potassium azeloyl diglycinate, vitamin E, diiodo methyl p-tolyl sulfone such as Amical Flowable® from Angus, malachite powder, octadecenedioic acid such as Arlatone dioic DCA® from Uniqema; ellagic acid; 2,4,4'-trichloro-2'-hydroxydiphenyl ether (or triclosan), 1-(3',4'-dichlorophenyl)-3-

(4′-chlorophenyl)urea (ortriclocarban), 3,4,4′-trichlorocarbanilide, 3′,4′,5′-
trichlorosalicylanilide, phenoxyethanol, phenoxy propanol, phenoxyisopropanol,
hexamidine isethionate, metronidazole and salts thereof, miconazole and salts
thereof, itraconazole, terconazole, econazole, ketoconazole, saperconazole,
fluconazole, clotrimazole, butoconazole, oxiconazole, sulfaconazole, sulconazole,
terbinafine, ciclopirox, ciclopiroxolamine, undecylenic acid and salts thereof, 3-
hydroxybenzoic acid, 4-hydroxybenzoic acid, phytic acid, N-acetyl-L-cysteine,
lipoic acid, arachidonic acid, resorcinol, 3,4,4′-trichlorocarbanalide,
octoxyglycerine or octoglycerine, octanoylglycine such as Lipacid C8G® from SEPPIC, , 10- hydroxy-2-decanoic acid, dichlorophenylimidazoldioxolane and derivatives thereof described in WO 93/18743, iodopropynyl butylcarbamate, 3,7,11-trimethyldodeca-2,5,10-trienol or farnesol, phytosphingosines; quaternary ammonium salts, for instance cetyltrimethylammonium salts and cetylpyridinium salts, and mixtures thereof.
[0056] Preferably the anti-acne active is selected from niacinamide and derivatives, niacin, nicotinic acid esters, metal gluconate, or mixtures thereof. [0057] More preferably the anti-acne active is niacinamide.
[0058] The amount of anti-acne active in the composition may vary. The anti-acne activemay be present in the composition in a weight range of 0.5 to 15 wt % with respect to total weight of the composition, preferably 1 to 10 wt %, more preferably 2 to 10 wt %.
Surfactant
[0059] The composition, according to the invention, includes a surfactant.
[0060] The surfactant is selected from non-ionic surfactant, anionic surfactant,
cationic surfactant, amphoteric surfactant, or mixtures thereof.
[0061] Preferably, the surfactant is a non-ionic surfactant selected from fatty acid
esters, fatty esters of sorbitan, fatty esters of glycerol, oxyalkylenated fatty esters of
glycerol, oxyalkylenated fatty esters of sorbitan, alkylene oxide polycondensates,
or mixtures thereof, preferably the non-ionic surfactant is oxyalkylenated fatty
esters of sorbitan. .

[0062] Oxyalkylenated fatty esters of glycerol are fatty acid esters (particularly C8-C24 acid, and preferably C16-C22 acid) and oxyethylenated and/or oxypropylenated glycerol ethers (that may include 1 to 150 oxyethylenated and/or oxypropylenated groups), such as PEG-200 glyceryl monostearate sold particularly under the name Simulsol 220 TM® by SEPPIC; polyethoxylated glyceryl stearate with ethylene oxide groups such as the TAGAT S® product sold by GOLDSCHMIDT, polyethoxylated glyceryl oleate with ethylene oxide groups like the TAGAT O® product sold by GOLDSCHMIDT, polyethoxylated glyceryl cocoate with ethylene oxide groups like the VARIONIC LI 13® product sold by SHEREX, polyethoxylated glyceryl isostearate with 30 ethylene oxide groups such as the TAGAT L® product sold by GOLDSCHMIDT and polyethoxylated glyceryl laurate with groups of ethylene oxide like the TAGAT I® product from GOLDSCHMIDT.
[0063] Oxyalkylenated fatty esters of sorbitan are fatty acid esters (particularly C8-C24 acid and preferably C16-C22 acid) and oxyethylenated and/or oxypropylenated sorbitol ethers (possibly containing 1 to 150 oxyethylenated and/or oxypropylenated groups), such as polysorbate 20 sold under the name Tween 20® by CRODA, polysorbate sold under the name Tween 60® by CRODA. [0064] Alkylene oxide polycondensates are copolymers of propylene oxide and of ethylene oxide (also called EO/PO polycondensates), and more particularly copolymers consisting of polyethylene glycol / polypropylene glycol blocks, such as for example polyethylene glycol / polypropylene glycol / polyethylene glycol triblock polycondensates, for example those having the following chemical structure: H-(O-CH2-CH2)a-(O-CH(CH3)-CH2)b-(O-CH2-CH2)a-OH, in which ‘a’ ranges from 2 to 120, and ‘b’ ranges from 1 to 100. As EO/PO polycondensates that can be used, mention can be made of polyethylene glycol / polypropylene glycol / polyethylene glycol triblock polycondensates sold under the trade names SYNPERONIC® such as SYNPERONIC PE/ L44® and SYNPERONIC PE/F127® by ICI.
[0065] Examples of alkylene oxide polycondensates includes polyoxyethylenated (1-40 EO) and polyoxypropylenated (1-30 PO) alkyl (C16-C30) ethers, may be

selected from the group consisting of PPG-6 decyltetradeceth-30 (polyoxyethylene (30) polyoxypropylene (6) tetradecyl ether), PPG-6 decyltetradeceth-12 (polyoxyethylene (12) polyoxypropylene (6) tetradecyl ether), PPG-13 decyltetradeceth-24 (polyoxyethylene (24) polyoxypropylene (13) decyltetradecyl ether), PPG-6 decyltetradeceth-20 (polyoxyethylene (20) polyoxypropylene (6) decyltetradecyl ether), PPG-4 ceteth-1(polyoxyethylene (1) polyoxypropylene (4) cetyl ether), PPG-8 ceteth-1(polyoxyethylene (1) polyoxypropylene (8) cetyl ether), PPG-4 ceteth-10(polyoxyethylene (10) polyoxypropylene (4) cetyl ether), PPG-4 ceteth-20(polyoxyethylene (20) polyoxypropylene (4) cetyl ether), PPG-5 ceteth-20(polyoxyethylene (20) polyoxypropylene (5) cetyl ether), PPG-8 ceteth-20 (polyoxyethylene (20) polyoxypropylene (8) cetyl ether), and PPG-23 steareth-34 (polyoxyethylene polyoxypropylene stearyl ether (34 EO) (23 PO). One type of preferred nonionic surfactants include alkoxylated alcohols such as a polyethylene derivative of hydrogenated castor oil, for example, PEG-40 hydrogenated castor oil, commercially available from the company Cognis (BASF) under the tradename Eumulgin® HRE 40 or Cremophor® CO 40; and PEG-60 hydrogenated castor oil. [0066] More preferably the non-ionic surfactant is selected from oxyalkylenated fatty esters of sorbitan comprising C8-C24 fatty acid with 1 to 150 oxyalkylenated sorbitan or mixtures thereof and is polysorbate 20.
[0067] The amount of surfactant in the composition may vary. The surfactantmay be present in the composition in a weight range of 0.1 to 8 wt% with respect to total weight of the composition, preferably 0.5 to 5 wt %, more preferably 1 to 3 wt %.
Polyol
[0068] The composition, according to the invention, includes a polyol.
[0069] The term “polyol” as used herein means an alcohol having two or more
hydroxy groups and does not encompass a saccharide or a derivative thereof. The
derivative of a saccharide includes a sugar alcohol which is obtained by reducing
one or more carbonyl groups of a saccharide, as well as a saccharide or a sugar
alcohol in which the hydrogen atom or atoms in one or more hydroxy groups thereof

has or have been replaced with at least one substituent such as an alkyl group, a
hydroxyalkyl group, an alkoxy group, an acyl group or a carbonyl group.
[0070] Polyols used in the present invention are liquid at ambient temperature such
as 25°C under atmospheric pressure (760 mmHg or 105 Pa).
[0071] The polyol may be a C2-24 polyol, preferably a C2-9 polyol, comprising at
least 2 hydroxy groups, and preferably 2 to 5 hydroxy groups.
[0072] The polyol may be a natural or synthetic polyol. The polyol may have a
linear, branched, or cyclic molecular structure.
[0073] The polyol may be selected from glycerine and derivatives thereof, and
glycols and derivatives thereof. The polyol may be selected from the group
consisting of glycerin, diglycerin, polyglycerin, ethyleneglycol, diethyleneglycol,
propylene glycol, dipropyleneglycol, butyleneglycol, pentyleneglycol,
hexyleneglycol, C6-C24 polyethyleneglycol, 1,3-propanediol, 1,4-butanediol, and
1,5-pentanediol.
[0074] Preferably the polyol is selected from propylene glycol, dipropylene glycol,
1,3-propanediol, butylene glycol, pentylene glycol, hexylene glycol, or mixtures
thereof, more preferably the polyol is selected from propylene glycol, dipropylene
glycol, or mixtures thereof.
[0075] The amount of polyol in the composition, according to embodiments herein,
may vary. The polyol, according to embodiments herein, may be present in the
composition in a weight range of 1 to 20 wt % with respect to total weight of the
composition, preferably 3 to 15 wt %, more preferably 5 to 10 wt %.
Alcohol
[0076] The composition, according to the invention, includes an alcohol.
[0077] The alcohol is a monoalcohol which is in the form of a liquid at room
temperature (25°C), such as a linear or branched monoalcohol comprising from 1
to 6 carbon atoms.
[0078] Preferably, the alcohol is selected from ethanol, propanol, butanol,
isopropanol, isobutanol, pentanol, hexanol, or mixtures thereof.
[0079] More preferably, the alcohol is ethanol.

[0080] The amount of the alcohol in the composition may vary. The alcoholmay be present in the composition in a weight range of 3 to 30 wt % with respect to total weight of the composition, preferably 5 to 20 wt %, more preferably 6 to 15 wt %.
Water
[0081] The composition, according to the invention, includes water in a weight range of 40 to 80 wt %, preferably 50 to 70 wt %, more preferably 50 to 65 wt % by weight with respect to total weight of the composition.
Other additives
[0082] The composition may also include one or more additives, particularly cosmetic additives, which may be notably chosen from a UV filter, a moisturizer, an antioxidant, a conditioning agent, a humectant, a fragrant, a pH modifier, a carrier, a lubricant, a preservative, neutralizer such as sodium hydroxide, or mixtures thereof.. It is understood that a person skilled in the art will take care to select the optional additives and/or the amount thereof such that the advantageous properties of the composition used according to the disclosure are not, or are not substantially, adversely affected by the envisaged addition. All such embodiments including the optional additives are understood to be included within the scope of the present disclosure.
Methods and use
[0083] Another object of the invention relates to a method of treating a keratin material, comprising the step of applying the composition of the present disclosure to the keratin material.
[0084] Preferably the present disclosure relates to a method for treating acne on the skin, comprising the step of applying the composition of the present disclosure on the skin.
[0085] Another object of the invention also relates to the use of the composition of the present disclosure for treating acne on the skin.

[0086] Although the present disclosure has been described in considerable detail with reference to certain embodiments and implementations thereof, other embodiments are possible to cover the modifications and variations of the present disclosure.
Examples
[0087] The disclosure will now be illustrated with working examples, which is intended to illustrate the working of disclosure and not intended to take restrictively to imply any limitations on the scope of the present disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood to one of ordinary skill in the art to which this disclosure belongs. Although methods and materials similar or equivalent to those described herein can be used in the practice of the disclosed methods and compositions, the exemplary methods, devices, and materials are described herein. It is to be understood that this disclosure is not limited to particular methods, and experimental conditions described, as such methods and conditions may apply.
[0088] In the following examples, unless indicated otherwise, the percentages are indicated by weight of the total weight of the composition (% w/w – AM : Active Material).
Example 1
Comparison between compositions according to the present disclosure and comparative compositions
[0089] The compositions listed in Table 1 including C1*, a composition prepared according to the process described below, and C2 and C3, the comparative compositions are prepared similar to the process as described below using the components as provided in Table 1 below.
[0090] The process includes: blending of at least one polymer, at least one polyol , at least one poly (hydroxy)acid with two or more alpha hydroxy acid in water with deflocculator blade at about 500-600 rpm to obtain a first solution; adding at least one surfactant at least one anti-acne active, and at least one alcohol and optionally

additives to the first solution with deflocculator blade at about 500-600 rpm to obtain the composition.
Table 1

Ingredient INCI Ingredient (% w/w) C1* C2 C3
Water Water qs 100 qs 100 qs 100
Alpha hydroxy acid Lactic acid 2 (1.8% AM) - 3 (2.7% AM)
Alpha hydroxy acid Glycolic acid 1.5
(1.05%
AM) 1.5 (1.05% AM) 2 (1.4% AM)
Additive Terephthalylidene
dicamphor Sulfonic
acid 0.5
(0.165%
AM) 0.5
(0.165%
AM) 0.5 (0.165% AM)
Additive Allantoin 0.3 0.3 0.3
Poly(hydroxy) acid Gluconolactone 1.5 1.5 2
Anti-acne active Niacinamide 6 6 6
Alcohol Alcohol (Ethanol) 12 12 12
Polyol Propylene glycol 6 6 6
Polymer Hydroxyethylcellulose 0.3 0.3 0.3
Additive PEG/PPG/Polybutylene Glycol-8/5/3 Glycerin 0.25 0.25 0.25
Surfactant Polysorbate 20 1 1 1
Additive Moisturizing agent 0.25 0.25 0.25
Additive Sodium hydroxide 0.3 0.3 0.3

Evaluation Sensory analysis Non-sticky Acceptable stickiness Very sticky

Avg. Stickiness (n= 15) ± Std Dev 1.60 ± 0.71 3.03 ± 0.53 3.93 ± 0.25

Avg. Softness /
Slipperiness (n=15) ±
Std Dev 4.33 ± 0.47 2.60 ± 0.49 2.46 ± 0.50

Avg. Irritancy (n=15) None reported irritancy Yes, 27% Yes, 60%

Stability Stable Unstable Unstable
Stability is measured as follows:
[0091] The short term stability of the compositions was evaluated by centrifugation. The composition was placed in a glass tube, which was in turn placed in a cup and subjected to a relative centrifugal force of 900 g for 1 hour at 25°C and any change in the texture and colour of the composition was observed.
Transparency is measured as follows:
[0092] The transparency of the compositions was evaluated by visually observing the transparency of the formula against a black background.
Sensorial Analysis
[0093] Sensorial analysis was carried out by 15 experts to evaluate aspects such as stickiness and slipperiness of the compositions.
Stickiness measurement Protocol:
[0094] Using an Eppendorf micropipette equipped with a 0.5 mL combitips®, a quantity of 50 .0 μL of composition to be evaluated was placed on a SKIN FX (Ref: SHEET MEDIUM BACK K6 LANGUETTE from AXON CABLE SAS ). The composition was spread on the skin in 15 rounds or for 15 seconds and then the

tights were evaluated using the index and middle finger. After waiting for 15 seconds, repeated 15 rounds or 15 seconds and then the tights was evaluated again. The fingers were rinsed with a cloth moistened with hot water. After waiting for 120 seconds, stickiness was evaluated again. The fingers were rinsed between each product with a cloth moistened with hot water. The result was calculated as a consensus average of 15 individual results, rounded up to half a unit. Slipperiness was assessed using a scale rated from 1 to 5 with:
[0095] - NOTE <3: Not sticky at all
[0096] - NOTE =3: Average perception
[0097] - NOTE >3: Sticky - NOT ACCEPTABLE
[0098] A composition was said to be sticky if, in the protocol described, it had an overall slip rating greater than or equal to 3.0.
Softness/Slipperiness Measurement Protocol
[0099] Using an Eppendorf micropipette equipped with a 0.5 mL combitips, a quantity of 50 .0 uL of composition to be evaluated was placed on a SKIN FX (Ref SHEET MEDIUM BACK K6 LANGUETTE from AXON CABLE SAS ).
[0100] The evaluation of the amount of residue on the fingers was done using a scale rated from 1 to 5 with:
[0101] - NOTE <3: No softness
[0102] - NOTE = 3: Moderate slipperiness / softness acceptable
[0103] - NOTE >3: Slippery / soft
[0104] A composition was said to be giving soft/slippery feel if, in the protocol described, it has an overall softness rating greater than or equal to 3.0.
Irritancy measurement protocol:
About 15 respondents were selected to assess the irritancy of the composition. Post application and complete absorption of the composition on face, the respondents were allowed to wait for 10 minutes. The respondents were then asked to report any

stinging, itching, irritating or slight burning sensation and the observations were recorded.
Results
[0105] As illustrated in Table 1, the composition C1* according to the present invention was stable with acceptable stickiness and slipperiness and also with no reported irritancy.
[0106] The comparative compositions C2 and C3 were unstable, affecting the transparency of the composition at a lower temperature of 4°C after 1 month. Composition C2 without any lactic acid was found to have an acceptable stickiness, lacked desirable slipperiness, and also was observed to be slightly irritant on the skin. The composition C3 comprising the AHA:PHA ratio as 5:2 (4.1:2 ratio of active material (AM)), which was beyond the desired ratio was found to be very sticky, lacked desirable slipperiness and was also observed to be irritant by 60% of the users, hence was an undesirable composition.
[0107] Accordingly, it was observed that the use of specific ingredients in the disclosed weight ranges as disclosed in various embodiments herein facilitated in achieving the cosmetic composition with desired sensorial properties and stability.

I/We claim:
1. A composition comprising:
a. at least one polymer;
b. two or more alpha hydroxy acids; and
c. at least one poly(hydroxy) acid,
wherein the alpha hydroxy acid has 2 to 4 carbon atoms; and the two or more alpha hydroxy acids and the poly(hydroxy) acid is in a weight ratio range of 3:2 to 1.5:0.5.
2. The composition as claimed in claim 1, wherein the two or more alpha hydroxy acids and the poly(hydroxy) acid is preferably in a weight ratio range of 2.9:1.6 to 1.5:0.8, more preferably 2:1 to 1:0.8.
3. The composition according to any one of the preceding claims, wherein the composition has pH in a range of 3 to 6, preferably 3.5 to 5.5.
4. The composition according to any one of the preceding claims, wherein the polymer is a polysaccharide, preferably the polymer is selected from hydroxy alkyl cellulose or hydroxypropyl guar gum, more preferably the polymer is hydroxy alkyl cellulose such as hydroxy ethyl cellulose.
5. The composition according to any one of the preceding claims, wherein the alpha hydroxy acid is of general formula (I):

wherein
R is OH;
R1 is selected from H, OH, CH2-COOH or C1-C2 alkyl which is optionally substituted;

R2 is selected from H, COOH, CHOH-COOH, CF3, CH═CH2, NHCONH2, or C1-C2 alkyl optionally substituted with a radical chosen from OH, Cl, NH2, COOH, CF3, or SCH3; or
R1 and R2 may also together form an oxo radical (═O) or a cyclopropyl with the carbon atom that bears them, or alternatively a
radical
6. The composition according to any one of the preceding claims, wherein the alpha hydroxy acid is selected from glycolic acid, L-lactic acid, DL-lactic acid, D-lactic acid, oxalic acid, malic acid, tartaric acid, DL-glyceric acid, 1-hydroxy-1-cyclopropanecarboxylic acid, 2-hydroxyisobutyric acid, 2-hydroxy-n-butyric acid, isoserine, 4-amino-2-hydroxybutyric acid, dihydroxyfumaric acid, β-chlorolactic acid, tartronic acid, glyoxylurea, 2-trifluoromethyl-2-hydroxypropionic acid, or mixtures thereof, preferably the alpha hydroxy acid is selected from glycolic acid, L-lactic acid, DL-lactic acid, D-lactic acid, or mixtures thereof.
7. The composition according to any one of the preceding claims, wherein the poly(hydroxy) acid is a lactone, preferably gluconolactone.
8. The composition according to any one of the preceding claims, wherein the at least one polymer is in a weight range of 0.05 to 5%, preferably 0.1 to 3 wt %, more preferably 0.1 to 1 wt %, most preferably 0.1 to 0.7 wt % with respect to total weight of the composition.
9. The composition according to any one of the preceding claims, wherein the two or more alpha hydroxy acids are in a weight range of 0.1 to 10%, preferably 0.1 to 8 wt %, more preferably 0.1 to 5 wt % with respect to total weight of the composition.
10. The composition according to any one of the preceding claims, wherein the at least one poly(hydroxy) acid is in a weight range of 0.1 to 10 %, preferably 0.2 to 7 wt %, more preferably 0.5 to 5 wt %, most preferably 1 to 3 wt % with respect to total weight of the composition.

11. The composition according to any one of the preceding claims, wherein the composition comprises at least one anti-acne active selected from niacinamide, niacin, nicotinic acid esters, peroxides, metal gluconate, asiatic acid, monoethanolamine salt of 1-hydroxy-4-methyl 6-trimethylpentyl-2-pyridone, citronellic acid, perillic acid, glyceryl 2-ethylhexyl ether, 10-hydroxy-2-decanoic acid, sodium ursolate, azelaic acid, diiodomethyl p-tolyl sulfone, malachite powder, octadecenedioic acid, ellagic acid, 2,4,4′-trichloro-2′- hydroxydiphenyl ether, 1-(3′,4′-dichlorophenyl)-3-(4′-chlorophenyl)urea, 3,4,4′-trichlorocarbanilide, 3′,4′,5′-trichlorosalicylanilide, phenoxyethanol, phenoxypropanol, phenoxyisopropanol, hexamidine isethionate, metronidazole, miconazole, itraconazole, terconazole, econazole, ketoconazole, saperconazole, fluconazole, clotrimazole, butoconazole, oxiconazole, sulfaconazole, sulconazole, terbinafine, ciclopirox, ciclopiroxolamine, undecylenic acid, 3-hydroxybenzoic acid, 4-hydroxybenzoic acid, phytic acid, N-acetyl-L-cysteine, lipoic acid, arachidonic acid, resorcinol, 3,4,4′-trichlorocarbanalide, octoglycerine, octanoylglycine, hydroxy-2-decanoic acid, dichlorophenylimidazoldioxolane, iodopropynyl butylcarbamate, 3,7,11-trimethyldodeca-2,5,10- trienol, phytosphingosines, quaternary ammonium salts, or mixtures thereof, preferably the anti-acne agent is selected from niacinamide, niacin, nicotinic acid esters, metal gluconate, or mixtures thereof.
12. The composition according to any one of the preceding claims, wherein the composition comprises at least one surfactant selected from non-ionic surfactant, anionic surfactant, cationic surfactant, amphoteric surfactant, or mixtures thereof, preferably the surfactant is a non-ionic surfactant.
13. The composition as claimed in claim 12, wherein the non-ionic surfactant is selected from fatty acid esters, fatty esters of sorbitan, fatty esters of glycerol, oxyalkylenated fatty esters of glycerol, oxyalkylenated fatty esters of sorbitan, alkylene oxide polycondensates, alkoxylated alcohols, or

mixtures thereof, preferably the non-ionic surfactant is oxyalkylenated fatty esters of sorbitan.
14. The composition according to any one of the preceding claims, wherein the composition comprises at least one polyol selected from C2-24 polyol, preferably the polyol is selected from C2-9 polyol, comprising at least 2 hydroxy groups, and preferably 2 to 5 hydroxy groups.
15. The composition according to any one of the preceding claims, wherein the composition comprises at least one alcohol, preferably the alcohol is selected from ethanol, propanol, butanol, isopropanol, isobutanol, pentanol, hexanol or mixtures thereof, more preferably ethanol.
16. The composition as claimed in claims 1 to 15, wherein the composition is free of salicylic acid and is free of silicone.
17. A method for treating a keratin material, preferably the skin, comprising the step of applying the composition as claimed in claims 1 to 16 on the skin.
18. Use of the composition as claimed in claims 1 to 16, for treating acne on the skin.