Composition for cleansing and / or caring for keratin materials
The composition with acrylates copolymer, niacinamide, and xanthine derivatives addresses the need for transparent, user-friendly hair care products that reduce hair loss by creating stable foam, enhancing hair volume and texture.
Patent Information
- Application Number
- PCT/CN2024/101509
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2026-01-02
AI Technical Summary
Existing hair care products fail to provide comprehensive benefits such as transparent appearance, good-to-use texture, hair volumizing look, and superior foam properties while effectively reducing hair loss during the washing phase, leading to potential hair fall and fiber breakage.
A composition comprising acrylates copolymer, niacinamide, and xanthine derivatives, along with optional anionic and amphoteric surfactants, creates abundant, bouncy, and long-lasting stable foam, reducing fiber friction and enhancing hair loss resistance.
The composition generates a stable foam with a large contact area, reducing hair loss and providing a pleasant user experience with improved hair volume and texture.
Smart Images

Figure PCTCN2024101509-FTAPPB-I100001 
Figure PCTCN2024101509-FTAPPB-I100002 
Figure PCTCN2024101509-FTAPPB-I100003
Abstract
Description
COMPOSITION FOR CLEANSING AND / OR CARING FOR KERATIN MATERIALSTechnical field
[0001] The present disclosure relates to a composition, preferably for cleansing and / or caring for keratin materials, especially scalp and / or hair. The present disclosure also relates to a method for cleansing and / or caring for keratin materials, especially scalp and / or hair, using the composition according to the present disclosure.Background
[0002] Many people suffer from hair loss problem and have sought for a long time to reduce hair loss amount while cleansing and conditioning scalp and / or hair. Various products are developed to deal with the requirement of anti-hair loss (AHL) , many of which apply caffeine alone or in combination with other actives for AHL efficacy and / or good hair conditioning.
[0003] Meanwhile, it is well known that washing / rinsing phase is a critical moment for people with strong hair loss concern. Rubbing, pulling, and combing will lead to strong fiber friction, and finally cause either hair fall from the root or fiber breakage from the length. It’s super important that a shampoo can efficiently reduce hair loss during washing / rinsing phase and provide an enjoyable usage experience for stress relieving and better scalp condition.
[0004] Abundant, bouncy, long-lasting stable foam is quite desirable for consumers when they wash hair. Quick foaming can contribute to less friction force among the fibers during rubbing. Creamy foam with extremely dense bubbles can make even distribution on scalp and fibers, leaving a large contact area for better deposition and penetration. Abundant foam gives rich care and nourish feel, which acts like a buffer among fibers that reducing pulling force. Long-lasting stable foam prolongs the holding time, rolling over all the dirt and sebum inside the foam completely, making a deep-clean scalp condition.
[0005] Moreover, it is also desirable for consumers that an AHL product shows a transparent appearance and a good-to-use texture, which brings a pleasant mood when making use of such a product.
[0006] Therefore, there is a need to develop a cosmetic product for cleansing and / or caring for keratin materials with comprehensive benefits in terms of transparent appearance, good-to-use texture, delivering hair volumized look, better hair loss resistance, and / or superior foam properties.Summary of the invention
[0007] The inventors have found that such a need can be achieved by the composition according to the present disclosure.
[0008] According to a first aspect, the present disclosure relates to a composition, preferably for cleansing and / or caring for keratin materials, relative to the total weight of the composition, comprising:
[0009] A) from 0.3 wt. %to 5 wt. %of at least one acrylates copolymer;
[0010] B) niacinamide and / or derivatives thereof;
[0011] C) xanthine and / or derivatives thereof.
[0012] According to a second aspect, the present disclosure relates to a method for cleansing and / or caring for keratin materials, especially scalp and / or hair, comprising at least one step of applying the above composition to the keratin materials.
[0013] According to a third aspect, the present disclosure relates to use of the above composition for cleansing and / or caring for keratin materials, especially scalp and / or hair.
[0014] Other subjects and characteristics, aspects and advantages of the present invention will emerge even more clearly on reading the detailed description and the examples that follow.Detailed description of the invention
[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art the present disclosure belongs to. When the definition of a term in the present description conflicts with the meaning as commonly understood by those skilled in the art the present disclosure belongs to, the definition described herein shall apply.
[0016] Throughout the present application, all ranges provided are meant to include every specific range within, and combination of sub ranges between, the given ranges. Thus, a range from 1-5, includes specifically 1, 2, 3, 4 and 5, as well as sub ranges such as 2-5, 3-5, 2-3, 2-4, 1-4, etc.
[0017] Throughout the present application, the term "comprising a" should be understood as being synonymous with "comprising at least one" , unless otherwise mentioned. Moreover, the expression "at least one" used in the present description is equivalent to the expression "one or more" .
[0018] Throughout the present application, an embodiment defined with "comprising" or the like should be understood to encompass a preferable embodiment defined with "consisting substantially of" and a preferable embodiment defined with "consisting of" .
[0019] Other than in the operating examples, or where otherwise indicated, all numbers expressing quantities of components and / or reaction conditions are to be understood as being modified in all instances by the term "about" with conventionally known meaning in the art, e.g., within 10%of the indicated number (e.g., "about 10%" means 9%-11 %and "about 2%" means 1.8%-2.2%) .
[0020] As used herein, the term "keratin material (s) " is intended to encompass skin, hair, scalp, eyelashes, eyebrows, bodily hair, nails, lips and / or mucous membranes, preferably scalp and / or hair.
[0021] 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 describe personal care ingredients.
[0022] In the application, unless specifically mentioned otherwise, contents, parts and percentages are expressed on a weight basis.
[0023] For the purposes of the present disclosure and unless otherwise indicated:
[0024] - an "alkyl" radical denotes a linear or branched saturated radical containing, for example, from 1 to 30 carbon atoms;
[0025] - an "alkylene" radical denotes a linear or branched divalent saturated C1-C10 hydrocarbon-based group such as methylene, ethylene or propylene;
[0026] - an "aryl" radical is a monocyclic, bicyclic or tricyclic, fused or non-fused, unsaturated and aromatic hydrocarbon-based cyclic radical, comprising from 6 to 30 carbon atoms, preferably between 6 and 14 carbon atoms, more preferably between 6 and 12 carbon atoms; preferably, the aryl group comprises at least one ring (s) of 6 carbon atoms such as phenyl, naphthyl, anthryl, phenanthryl and biphenyl, it being understood that the aryl radical may be substituted with one or more (C1-C4) alkyl groups such as methyl, preferably tolyl, xylyl, or methylnaphthyl; preferably, the aryl group represents a phenyl.
[0027] Acrylates copolymer
[0028] The composition according to the present disclosure comprises at least one acrylates copolymer.
[0029] As used herein, the term "acrylates copolymer" is intended to mean a polymer resulting from the copolymerization of at least two chemically different monomers, at least one of which is selected from unsaturated carboxylic acids, preferably acrylic acid or methacrylic acid, or esters thereof, preferably acrylate or methacrylate.
[0030] Preferably, the acrylates copolymer is derived from at least one unsaturated carboxylic acid and from at least one ester of an unsaturated carboxylic acid and of a monoalcohol comprising from 1 to 6 carbon atoms and preferably from 1 to 4 carbon atoms.
[0031] More particularly, the unsaturated carboxylic acid, which is in particular α, β-monoethylenically unsaturated, is a monomer corresponding to formula (I) below:
[0032] in which R1 denotes H or CH3 or C2H5, which corresponds to acrylic acid, methacrylic acid or ethacrylic acid units.
[0033] Preferably, the other monomeric ester of an unsaturated carboxylic acid and of a monoalcohol comprising from 1 to 6 carbon atoms and preferably from 1 to 4 carbon atoms is a monomer of formula (II) below:
[0034] in which R1 denotes H or CH3 or C2H5 (i.e., acrylate, methacrylate or ethacrylate units) and preferably H (acrylate units) or CH3 (methacrylate units) , and R2 denotes an alkyl group comprising from 1 to 6 carbon atoms and preferably from 1 to 4 carbon atoms.
[0035] As esters of an unsaturated carboxylic acid and of a fatty monoalcohol comprising from 1 to 6 carbon atoms according to formula (II) , mention may be made more particularly of methyl acrylate, ethyl acrylate, propyl acrylate and butyl acrylate, and the corresponding methacrylate, methyl methacrylate, ethyl methacrylate, propyl methacrylate and butyl methacrylate.
[0036] According to one embodiment, the acrylates copolymer may be crosslinked, for example, with a crosslinking agent, which is a well-known copolymerizable polyethylenic unsaturated monomer, for instance diallyl phthalate, allyl (meth) acrylate, divinylbenzene, (poly) ethylene glycol dimethacrylate or methylenebisacrylamide.
[0037] Among acrylates copolymers of this type, use will more particularly be made of the polymers constituted of the following monomers:
[0038] i) of an unsaturated carboxylic acid, which is in particular α, β-monoethylenically unsaturated, corresponding to formula (I) below:
[0039] in which R1 denotes H or CH3 or C2H5, which corresponds to acrylic acid, methacrylic acid or ethacrylic acid units;
[0040] (ii) of an ester of an unsaturated carboxylic acid and of a monoalcohol comprising from 1 to 6 carbon atoms and preferably from 1 to 4 carbon atoms, of formula (II) below:
[0041] in which R1 denotes H or CH3 or C2H5 (i.e., acrylate, methacrylate or ethacrylate units) and preferably H (acrylate units) or CH3 (methacrylate units) , and R2 denotes an alkyl group comprising from 1 to 6 carbon atoms and preferably from 1 to 4 carbon atoms,
[0042] (iii) and optionally a crosslinking agent, which is a well-known copolymerizable polyethylenic unsaturated monomer, such as diallyl phthalate, allyl (meth) acrylate, divinylbenzene, (poly) ethylene glycol dimethacrylate or methylenebisacrylamide.
[0043] Examples of acrylates copolymer as defined above are the crosslinked copolymer of acrylic acid and of ethyl acrylate sold under the trade name Aculyn 33 by the company &Haas, which is in aqueous dispersion containing 28%by weight of active material, the methacrylic acid / ethyl acrylate crosslinked copolymer in the form of an aqueous dispersion at 30%by weight sold under the name Carbopol Aqua SF-1 Polymer by the company Lubrizol, and the copolymer of (meth) acrylic acid and of a C1-C4 alkyl (meth) acrylate sold under the name Synthalen W400 by the company 3V Sigma, at 30%by weight of active material in water.
[0044] Preferably, the acrylates copolymer is selected from crosslinked copolymers of (meth) acrylic acid and of a C1-C4 alkyl (meth) acrylate, and mixtures thereof, and preferably crosslinked copolymers of (meth) acrylic acid and of ethyl (meth) acrylate.
[0045] Preferably, the acrylates copolymer used according to the present disclosure is the crosslinked copolymer of (meth) acrylic acid and of ethyl (meth) acrylate which may be commercially available from the supplier LUBRIZOL under the tradename of CARBOPOL AQUA SF-1 POLYMER.
[0046] Preferably, the acrylates copolymer is present in the composition according to the present disclosure in an amount ranging from 0.3 wt. %to 5 wt. %, preferably from 0.4 wt. %to 4 wt. %, and more preferably from 0.5 wt. %to 3 wt. %, relative to the total weight of the composition.
[0047] The inventors have discovered that, compared to xanthan gum, guar gum, cellulose, or derivatives thereof, the acrylates copolymer is particularly suitable for the composition of the present disclosure and can contribute to good-to-use texture when used in a specific amount.
[0048] Niacinamide and / or derivatives thereof
[0049] The composition according to the present disclosure comprises niacinamide and / or derivatives thereof.
[0050] Niacinamide, also called Vitamin B3, is a compound of the following formula (III) :
[0051] Niacinamide derivatives that may be mentioned includes, for example, nicotinic acid, nicotinyl alcohol, nicotinuric acid, nicotinyl hydroxamic acid, nicotinic acid esters such as tocopherol nicotinate, amides derived from niacinamide by substitution of the hydrogen of -CONH2, products from reaction with carboxylic acids and amino acids, esters of nicotinyl alcohol and of carboxylic acids such as acetic acid, salicylic acid, glycolic acid, or palmitic acid.
[0052] Mention may also be made of the following niacinamide derivatives: 2-chloronicotinamide, 6-methylnicotinamide, 6-aminonicotinamide, N-methylnicotinamide, N, N-dimethylnicotinamide, N- (hydroxymethyl) nicotinamide, quinolinic acid imide, nicotinanilide, N-benzylnicotinamide, N-ethylnicotinamide, nifenazone, nicotinaldehyde, isonicotinic acid, methylisonicotinic acid, thionicotinamide, nialamide, 2-mercaptonicotinic acid, nicomol and niaprazine, methyl nicotinate and sodium nicotinate.
[0053] Preferably, niacinamide and / or derivatives thereof is selected from niacinamide, 2-chloronicotinamide, 6-methylnicotinamide, 6-aminonicotinamide, N-methylnicotinamide, N, N-dimethylnicotinamide, N- (hydroxymethyl) nicotinamide, quinolinic acid imide, nicotinanilide, N-benzylnicotinamide, N-ethylnicotinamide, nifenazone, nicotinaldehyde, isonicotinic acid, methylisonicotinic acid, thionicotinamide, nialamide, 2-mercaptonicotinic acid, nicomol, niaprazine, methyl nicotinate, sodium nicotinate, and mixtures thereof, and more preferably niacinamide.
[0054] Preferably, niacinamide and / or derivatives thereof used according to the present disclosure is niacinamide which may be commercially available from the supplier DSM NUTRITIONAL PRODUCTS under the tradename of NIACINAMIDE PC.
[0055] Preferably, niacinamide and / or derivatives thereof is present in the composition according to the present disclosure in an amount ranging from 0.001 wt. %to 20 wt. %, preferably from 0.002 wt. %to 15 wt. %, more preferably from 0.005 wt. %to 10 wt. %, and even more preferably from 0.005 wt. %to 8 wt. %, relative to the total weight of the composition.
[0056] Xanthine and / or derivatives thereof
[0057] The composition according to the present disclosure comprises xanthine and / or derivatives thereof.
[0058] Xanthine and / or derivatives thereof refers to one or more compound corresponding to formula (IV) below,
[0059] wherein R1, R2 and R3 are independent from each other H, substituted or unsubstituted C1 to C6 alkyl, or substituted or unsubstituted C1 to C6 alkenyl, wherein alkyl or alkenyl may be substituted with one or more substituent selected from hydroxyl, carboxyl, carbonyl, amino (said amino may be substituted with 1 or 2 C1 to C6 alkyl) or halogen.
[0060] Xanthine and / or derivatives thereof that may be mentioned includes, for example, xanthine, caffeine, theobromine, theophylline, paraxanthine, diprophylline, uric acid, dyphylline, and IBMX (3-isobutyl-l-methylxanthine) .
[0061] Mention may also be made of the following xanthine derivatives: acefylline, xanthinol nicotinate, diniprophylline, etamiphylline, etophylline, proxyphylline, pentophylline, propentophylline, pyridophylline, and bamiphylline.
[0062] Preferably, the xanthine and / or derivatives thereof is selected from xanthine, caffeine, theobromine, theophylline, paraxanthine, diprophylline, uric acid, dyphylline, IBMX (3-isobutyl-l-methylxanthine) , xanthinol nicotinate, acefylline, diniprophylline, etamiphylline, etophylline, proxyphylline, pentophylline, propentophylline, pyridophylline and mixtures thereof, and more preferably caffeine.
[0063] Preferably, the xanthine and / or derivatives thereof used according to the present disclosure is caffeine which may be commercially available from the supplier BASF under the tradename of CAFFEINE.
[0064] Preferably, the xanthine and / or derivatives thereof is present in the composition according to the present disclosure in an amount ranging from 0.001 wt. %to 15 wt. %, preferably from 0.002 wt. %to 10 wt. %, and more preferably from 0.005 wt. %to 5 wt. %, relative to the total weight of the composition.
[0065] Anionic surfactant
[0066] The composition according to the present disclosure optionally comprises at least one anionic surfactant.
[0067] As used herein, the term "anionic surfactant" means a surfactant comprising, as ionic or ionizable groups, only anionic groups. In the present description, a species is termed as being "anionic" when it bears at least one permanent negative charge or when it can be ionized as a negatively charged species, under the conditions of use of the composition of the invention (for example the medium or the pH) and not comprising any cationic charge.
[0068] Preferably, the anionic group of the anionic surfactant belongs to the group selected from: -C (O) OH, -C (O) O-, -SO3H, -S (O) 2O-, -OS (O) 2OH, -OS (O) 2O-, -P (O) OH2, -P (O) 2O-, -P (O) O2-, -P (OH) 2, =P (O) OH, -P (OH) O-, =P (O) O-, =POH, =PO-. Mention may be made, as anionic surfactants, of surfactants comprising carboxylate, sulfate, sulfonate, sulfoacetate, sulfosuccinate, phosphate, isethionate, sarcosinate, glutamate, lactylate or taurate anionic groups, salts of fatty acids, salts of galactosiduronic acids, salts of ether carboxylic acids surfactants and their mixtures, with a cationic counterion which is generally metallic (alkali metal or alkaline earth metal, such as Na, K, or Mg) or organic (such as ammonium, amine, or aminoalcohol) .
[0069] Preferably, the anionic surfactant is selected from:
[0070] · (C6-C30) alkyl sulfates, (C6-C30) alkyl ether sulfates, (C6-C30) alkylamido ether sulfates, alkylaryl polyether sulfates or monoglyceride sulfates; preferably for this type of anionic surfactants, (C6-C30) alkyl sulfates, (C6-C30) alkyl ether sulfates, or a mixture is used. Mention may be made of sulfate of ether of lauryl alcohol and alkylene oxide, containing from 1 to 50 alkylene oxide groups; more preferably, the anionic surfactant is selected from sulfate of ether of lauryl alcohol and alkylene oxide containing from 1 to 4 alkylene oxide groups, especially ethylene oxide groups; for example, sodium laureth sulfate containing in average 2.2 ethylene oxide groups that are sold by the company Cognis (BASF) under the name AOS 225 UP, Rhodia under the name esb-70 / fla3, Clariant under the name LRO L'O, and sodium laureth sulfate containing in average 1 ethylene oxide group that is sold by the company Zhejiang Zanyu Technology under the name SLES (N1EO) ; use will be made more particularly of sodium laureth sulfate;
[0071] · (C6-C30) alkyl sulfonates, (C6-C30) alkylamidesulfonates, (C6-C30) alkylaryl sulfonates, α-olefin sulfonates, paraffin sulfonates;
[0072] · (C6-C30) akyl phosphates;
[0073] · (C6-C30) alkyl sulfosuccinates, (C6-C30) alkyl ether sulfosuccinates or (C6-C30) alkylamido sulfosuccinates;
[0074] · (C6-C30) alkyl sulfoacetates;
[0075] · (C6-C24) acyl sarcosinates, for example lauroyl sarcosinates, myristoyl sarcosinates, palmitoyl sarcosinates;
[0076] · (C6-C24) acylglutamates;
[0077] · (C6-C30) alkylpolyglycoside carboxylic ethers;
[0078] · (C6-C30) alkylpolyglycoside sulfosuccinates;
[0079] · (C6-C30) alkyl sulfosuccinamates;
[0080] · (C6-C24) acylsarcosinates, for example sodium lauroyl methyl isethionate, sodium cocoyl isthionate;
[0081] · N- [ (C6-C24) acyl] taurates, for example sodium methyl cocoyl taurate;
[0082] · salts of fatty acids;
[0083] · (C8-C20) acyl lactylates;
[0084] · salts of (C6-C30) alkyl-D-galactosiduronic acids;
[0085] · salts of (C6-C30) alkyl polyoxyalkylenated ether carboxylic acids, of (C6-C30) alkylaryl polyoxyalkylenated ether carboxylic acids or of (C6-C30) alkylamido polyoxyalkylenated ether carboxylic acids;
[0086] · and their mixtures.
[0087] Preferably, the alkyl or acyl radicals of these various anionic surfactants comprise from 12 to 20 carbon atoms. Preferably, the oxyalkylenated or polyoxyalkylenated anionic surfactants comprise from 1 to 50 alkylene oxide groups, preferably from 1 to 30 alkylene oxide groups, more preferably from 1 to 10 alkylene oxide groups, in particular ethylene oxide groups.
[0088] More preferably, the composition according to the present disclosure comprises at least one sulfate anionic surfactant. Preferably, the sulfate anionic surfactant is selected from alkali metal, alkaline earth metal or ammonium salt of (C6-C30) alkyl sulfates, (C6-C30) alkyl ether sulfates, and mixtures thereof.
[0089] More preferably, the anionic surfactant is selected from sodium lauryl sulfate, sodium laureth sulfate, ammonium lauryl sulfate, ammonium laureth sulfate, and mixtures thereof.
[0090] Most preferably, the anionic surfactant is sodium laureth sulfate, preferably containing in average 0.8-2.2 ethylene oxide groups.
[0091] Preferably, the anionic surfactant used according to the present disclosure is sodium laureth sulfate which may be commercially available from the supplier BASF under the tradename of TEXAPON AOS 225 UP.
[0092] Preferably, the anionic surfactant is present in the composition according to the present disclosure in an amount ranging from 1 wt. %to 50 wt. %, preferably from 2 wt. %to 40 wt. %, and more preferably from 3 wt. %to 30 wt. %, relative to the total weight of the composition.
[0093] Amphoteric surfactant
[0094] The composition according to the present disclosure optionally comprises at least one amphoteric surfactant.
[0095] As used herein, the term "amphiphilic surfactant" is intended to mean a molecule or a substance comprising a hydrophobic group and one or more hydrophilic groups comprising two moieties of opposite formal charges or capable of bearing opposite formal charges (as a function of acid-base properties and solution pH) .
[0096] Suitable amphiphilic surfactants include, but are not limited to: alkyl betaines, alkyl amidoalkyl betaines, alkyl sulphobetaines, alkyl glycinates, alkyl carboxyglycinates, alkyl amphoacetates, alkyl amidoalkyl hydroxysultaines, acyl taurates and acyl glutamates, wherein the alkyl and acyl groups have, for example, from 8 to 18 carbon atoms.
[0097] Preferably, the amphoteric surfactant is selected from (C8-C18) alkylamido (C1-C6) alkyl betaines, (C8-C18) alkylamido (C1-C6) alkyl hydroxysultaines, (C8-C18) alkyl amphoacetates, and mixtures thereof, and preferably selected from cocamidopropyl betaine, cocamidopropyl hydroxysultaine, sodium cocoamphoacetate, disodium cocoamphodiacetate, and mixtures thereof, and more preferably cocamidopropyl betaine.
[0098] Preferably, the amphoteric surfactant used according to the present disclosure is cocamidopropyl betaine which may be commercially available from the supplier BASF under the tradename of DEHYTON PK
[0099] Preferably, the amphiphilic surfactant is present in the composition according to the present disclosure in an amount ranging from 0.5 wt. %to 20 wt. %, preferably from 1 wt. %to 15 wt. %, and more preferably from 1.5 wt. %to 10 wt. %, relative to the total weight of the composition.
[0100] Aqueous solvent
[0101] The composition according to the present disclosure may comprise at least one aqueous solvent.
[0102] Suitable aqueous solvents include, but are not limited to: water, C2-C6 polyols, or C2-C8 monoalcohols, such as ethanol and isopropanol. The term "polyol" should be understood as meaning any organic molecule comprising at least two free hydroxyl groups. Examples of polyols that may be mentioned include glycols, for instance butylene glycol, propylene glycol, dipropylene glycol, isoprene glycol, hexylene glycol, glycerol (i.e., glycerin) and polyethylene glycols.
[0103] Preferably, the composition according to the present disclosure comprises water. Advantageously, the water content in the composition according to the present disclosure ranges from 25 wt. %to 95 wt. %, preferably from 30 wt. %to 90 wt. %, and more preferably from 35 wt. %to 80 wt. %, relative to the total weight of the composition.
[0104] Additional ingredients
[0105] According to various embodiments, the compositions of the present disclosure are provided for application to keratin materials, such as scalp and / or hair. In accordance with these embodiments, the compositions of the present disclosure can comprise various ingredients conventionally useful in compositions for cleansing and / or caring for keratin materials, such as, active ingredients, humectants, fatty substances, antidandruff agents, thickening agents, anti-seborrhoea agents, other agents for preventing hair loss and / or for promoting hair regrowth, vitamins and provitamins including panthenol, sequestrants, pH adjusters, chelating agents, colorants, plasticizers, acidifying agents, opacifiers, pearlescent or nacreous agents, antioxidants, hydroxyacids, fragrances, preserving agents and other multifunctional additives.
[0106] A non-exhaustive listing of such ingredients can be found in U.S. patent application publication No. 2004 / 0170586, the entire contents of which is hereby incorporated by reference. Still further examples of such additional ingredients may be found in the International Cosmetic Ingredient Dictionary and Handbook (9th ed. 2002) .
[0107] A person skilled in the art will take care to select the optional additional ingredients and / or the amount thereof such that the advantageous properties of the composition according to the present disclosure are not, or are not substantially, adversely affected by the envisaged addition.
[0108] These ingredients may be selected variously by the person skilled in the art in order to prepare a composition which has the desired properties, for example, consistency or fragrance. In particular, the ingredients, if used, and the amounts thereof are particularly determined according to the specific products / applications thereof, e.g., lotion, shampoo, rinse-off conditioner, emulsion and the like.
[0109] These ingredients (if present) may be present in the composition in an amount ranging from 0.01%to 80%, such as from 0.1%to 50%, relative to the total weight of the composition.
[0110] Composition
[0111] The composition according to the present disclosure may be a cosmetic composition, preferably for cleansing and / or caring for keratin materials.
[0112] Preferably, the present disclosure is directed to a composition for cleansing and / or caring for keratin materials, relative to the total weight of the composition, comprising:
[0113] A) from 0.3 wt. %to 5 wt. %of at least one acrylates copolymer;
[0114] B) from 0.001 wt. %to 20 wt. %of niacinamide and / or derivatives thereof;
[0115] C) from 0.001 wt. %to 15 wt. %of xanthine and / or derivatives thereof;
[0116] D) optionally, from 1 wt. %to 50 wt. %of at least one anionic surfactant; and
[0117] E) optionally, from 0.5 wt. %to 20 wt. %of at least one amphoteric surfactant.
[0118] Preferably, the composition has a pH value in a range of 5.5-7, and more preferably 5.6-6.2.
[0119] More preferably, the present disclosure is directed to a composition for cleansing and / or caring for keratin materials, relative to the total weight of the composition, comprising:
[0120] A) from 0.4 wt. %to 4 wt. %of at least one acrylates copolymer selected from crosslinked copolymers of (meth) acrylic acid and of a C1-C4 alkyl (meth) acrylate, and mixtures thereof;
[0121] B) from 0.002 wt. %to 15 wt. %of niacinamide and / or derivatives thereof selected from niacinamide, 2-chloronicotinamide, 6-methylnicotinamide, 6-aminonicotinamide, N-methylnicotinamide, N, N-dimethylnicotinamide, N- (hydroxymethyl) nicotinamide, quinolinic acid imide, nicotinanilide, N-benzylnicotinamide, N-ethylnicotinamide, nifenazone, nicotinaldehyde, isonicotinic acid, methylisonicotinic acid, thionicotinamide, nialamide, 2-mercaptonicotinic acid, nicomol, niaprazine, methyl nicotinate, sodium nicotinate, and mixtures thereof;
[0122] C) from 0.002 wt. %to 10 wt. %of xanthine and / or derivatives thereof selected from xanthine, caffeine, theobromine, theophylline, paraxanthine, chlorotheophylline, diprophylline, uric acid, dyphylline, cafaminol, aminophylline, IBMX (3-isobutyl-l-methylxanthine) , xanthinol nicotinate, acefylline, diniprophylline, etamiphylline, etophylline, proxyphylline, pentophylline, propentophylline, pyridophylline, bamiphylline and mixtures thereof;
[0123] D) optionally, from 2 wt. %to 40 wt. %of at least one anionic surfactant selected from alkali metal, alkaline earth metal or ammonium salt of (C6-C30) alkyl sulfates, (C6-C30) alkyl ether sulfates, and mixtures thereof; and
[0124] E) optionally, from 1 wt. %to 15 wt. %of at least one amphoteric surfactant selected from (C8-C18) alkylamido (C1-C6) alkyl betaines, (C8-C18) alkylamido (C1-C6) alkyl hydroxysultaines, (C8-C18) alkyl amphoacetates, and mixtures thereof.
[0125] Even more preferably, the present disclosure is directed to a composition for cleansing and / or caring for keratin materials, relative to the total weight of the composition, comprising:
[0126] A) from 0.5 wt. %to 3 wt. %of a crosslinked copolymer of (meth) acrylic acid and of ethyl (meth) acrylate;
[0127] B) from 0.005 wt. %to 8 wt. %of niacinamide;
[0128] C) from 0.005 wt. %to 5 wt. %of caffeine;
[0129] D) optionally, from 3 wt. %to 30 wt. %of an alkali metal, alkaline earth metal or ammonium salt of (C6-C30) alkyl sulfates, (C6-C30) alkyl ether sulfates, or mixtures thereof; and
[0130] E) optionally, from 1.5 wt. %to 10 wt. %of a (C8-C18) alkylamido (C1-C6) alkyl betaine.
[0131] The inventors have discovered that, the composition according to the present disclosure can achieve comprehensive benefits in terms of transparent appearance, good-to-use texture, better hair loss resistance, and superior foam properties. After the application of the above composition on the keratin materials, especially scalp and / or hair, the composition can generate very abundant, bouncy and long-lasting stable foam with extreme large contact area with hair fibers and scalp, that efficiently reduce fiber friction during hair shampooing and reduce hair loss amount.
[0132] The composition according to the present disclosure is particularly useful for a cosmetic product for cleansing and / or caring for keratin materials, preferably an anti-hair loss shampoo.
[0133] Preparation and use
[0134] The composition of the present disclosure can be generally prepared according to the general knowledge of a person skilled in the art. Nevertheless, it is to be understood that a person skilled in the art can choose the method of preparation, on the basis of his / her general knowledge, taking into account the nature of the constituents used, for example, their solubility in the vehicle, and the application envisaged for the compositions or the kit.
[0135] According to an embodiment, the composition according to the present disclosure can be used for cleansing and / or caring for keratin materials, especially scalp and / or hair. This use may manifest itself as a method for cleansing and / or caring for keratin materials, especially scalp and / or hair, comprising at least one step of applying the composition of the present disclosure to the keratin materials, especially scalp and / or hair.
[0136] The composition according to the present disclosure may be applied by any means enabling a uniform distribution of the composition on the keratin materials and a generation of foam with large contact area with hair fibers and scalp, preferably using fingers.
[0137] The invention will be further illustrated by the following examples, which set forth particularly advantageous embodiments.
[0138] Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the present disclosure are approximations, the numerical values set forth in the specific examples are reported as precisely as possible. Any numerical value, however, inherently contain certain errors necessarily resulting from the standard deviation found in their respective measurements.
[0139] Examples
[0140] The following examples are given by way of illustration of the present invention and shall not be interpreted as limiting the scope.
[0141] Main raw materials used, trade names and suppliers thereof were listed in Table 1 below. Other materials without specification here were each commercially available.
[0142] Table 1
[0143] Inventive Examples 1-2 and Comparative Examples 1-6
[0144] Compositions of Inventive Examples (Ex. ) 1-2 and Comparative Examples (CE. ) 1-6 were prepared according to the amounts of ingredients given in Table 2. The amount of each ingredient was given in %by weight with regard to the total weight of the composition unless otherwise indicated–AM: active material.
[0145] Preparation Procedure:
[0146] The compositions above were prepared according to the following steps:
[0147] 1) . weighing each of raw materials in proportion;
[0148] 2) . adding SLES and CAPB into water and mixing to complete dispersion;
[0149] 3) . adding caffeine and / or niacinamide into the mixture obtained in step 2) and mixing to complete dispersion;
[0150] 4) . adding acrylates copolymer, xanthan gum or cellulose into the mixture obtained in step 3) and mixing to complete dispersion;
[0151] 5) . adjusting pH to 6.0 with SODIUM HYDROXIDE or CITRIC ACID.
[0152] Table 2
[0153] *QSP 100 denotes quantity sufficient to 100%.
[0154] Evaluation
[0155] 1. Texture, Clarity
[0156] 1.1 Texture
[0157] Texture of each composition of Ex. 1-2 and CE. 1-6 was evaluated by applying and spreading each composition on the back of a hand of a specialist for texture evaluation.
[0158] The results were summarized in Table 3.
[0159] Table 3
[0160] 1.2 Clarity
[0161] Clarity of each composition of Ex. 1-2 was evaluated by the equipment of 2100N TURBIDMETER. The results showed that the compositions of Ex. 1-2 were transparent with clarity score of <50 NTU.
[0162] 2. Hair loss resistance and Hair volumizing look
[0163] The compositions of Ex. 1, Ex. 2, CE. 1, CE. 2, and CE. 6 were evaluated in terms of hair volumizing look and hair loss resistance according to the following consumer test protocols:
[0164] 1) recruiting 30 subjects (young females, aged 22-35) with self-claiming of hair loss problem;
[0165] 2) dividing the subjects into 5 groups (6 subjects / group) ;
[0166] 3) instructing the subjects of each group to use each composition of Ex. 1, Ex. 2. CE. 1, CE. 2, and CE. 6, respectively, every day at home for two weeks, and the usage instruction is as follows:
[0167] - applying 12 g of the composition on full-head hair and scalp,
[0168] - massaging for 2 minutes,
[0169] - rinsing off the composition,
[0170] - blowing the hair to completely dry;
[0171] 4) after 2 weeks of usage period, getting the feedback of subjects via questionnaire based on their usage experience during test period with the questions of:
[0172] - I feel less hair fall during hair wash than before;
[0173] - I feel my hair having more volumizing look than before.
[0174] The questions were answered according to the following score standard, and the scores for each composition were averaged.
[0175] - 5 stands for very likely.
[0176] - 4 stands for likely.
[0177] - 3 stands for no difference.
[0178] - 2 stands for unlikely.
[0179] - 1 stands for very unlikely.
[0180] The results were summarized in Table 4.
[0181] Table 4
[0182] 3. Foam Properties
[0183] The compositions of Ex. 1-2 and CE. 1 were tested for foam properties, including foam volume, bubble count, and bubble stability, on the KRUSS dynamic foam analyzer DFA100 (KRUSS GmbH, Hamburg Germany) according to the following test protocols:
[0184] 1) . mixing the composition with water at a ratio of 2: 40 to obtain a mixture;
[0185] 2) . injecting 40 mL of the mixture into the sample vessel of DFA100;
[0186] 3) . inserting the sample vessel into the analyzer, fixing the position;
[0187] 4) . starting the test and collecting the data of foam properties.
[0188] The results were summarized in Table 5.
[0189] Table 5
[0190] Ex. 1-2 generated very abundant, bouncy, long-lasting stable foam which showed desirable properties in terms of foam volume and bubble stability. While CE. 1 showed low foam volume and low bubble stability. This type of bubble could not stand for gravity, stretch force or pressure on air / liquid interface, and was easy to collapse along time.
[0191] These results demonstrated that the compositions of Inventive Examples exhibited comprehensive benefits in terms of transparent appearance, good-to-use texture, delivering hair volumized look, better hair loss resistance, and superior foam properties.
[0192] The foregoing description illustrates and describes the disclosure. Additionally, the disclosure shows and describes only the preferred embodiments, but as mentioned above, it is to be understood that it is capable to use in various other combinations, modifications, and environments and is capable of changes or modifications within the scope of the invention concepts as expressed herein, commensurate with the above teachings and / or the skill or knowledge of the relevant art. The embodiments described herein above are further intended to explain best modes known by applicant and to enable others skilled in the art to utilize the disclosure in such, or other, embodiments and with the various modifications required by the particular applications or uses thereof.
[0193] Accordingly, the description is not intended to limit the invention to the form disclosed herein. Also, it is intended to the appended claims be construed to include alternative embodiments.
Claims
1.A composition, preferably for cleansing and / or caring for keratin materials, relative to the total weight of the composition, comprising:A) from 0.3 wt. %to 5 wt. %of at least one acrylates copolymer;B) niacinamide and / or derivatives thereof; andC) xanthine and / or derivatives thereof.2.The composition according to claim 1, further comprising D) at least one anionic surfactant.3.The composition according to any one of preceding claims, further comprising E) at least one amphoteric surfactant.4.The composition according to any one of preceding claims, wherein the acrylates copolymer is selected from crosslinked copolymers of (meth) acrylic acid and of a C1-C4 alkyl (meth) acrylate, and mixtures thereof, and preferably crosslinked copolymers of (meth) acrylic acid and of ethyl (meth) acrylate.5.The composition according to any one of preceding claims, wherein the acrylates copolymer is present in the composition in an amount ranging from 0.3 wt. %to 4.5 wt. %, preferably from 0.4 wt. %to 4 wt. %, and more preferably from 0.5 wt. %to 3 wt. %, relative to the total weight of the composition.6.The composition according to any one of preceding claims, wherein the niacinamide and / or derivatives thereof is selected from niacinamide, 2-chloronicotinamide, 6-methylnicotinamide, 6-aminonicotinamide, N-methylnicotinamide, N, N-dimethylnicotinamide, N- (hydroxymethyl) nicotinamide, quinolinic acid imide, nicotinanilide, N-benzylnicotinamide, N-ethylnicotinamide, nifenazone, nicotinaldehyde, isonicotinic acid, methylisonicotinic acid, thionicotinamide, nialamide, 2-mercaptonicotinic acid, nicomol, niaprazine, methyl nicotinate, sodium nicotinate, and mixtures thereof, and preferably niacinamide.7.The composition according to any one of preceding claims, wherein the niacinamide and / or derivatives thereof is present in the composition in an amount ranging from 0.001 wt. %to 20 wt. %, preferably from 0.002 wt. %to 15 wt. %, more preferably from 0.005 wt. %to 10 wt. %, and even more preferably from 0.005 wt. %to 8 wt. %, relative to the total weight of the composition.8.The composition according to any one of preceding claims, wherein the xanthine and / or derivatives thereof is selected from xanthine, caffeine, theobromine, theophylline, paraxanthine, chlorotheophylline, diprophylline, uric acid, dyphylline, cafaminol, aminophylline, IBMX (3-isobutyl-l-methylxanthine) , xanthinol nicotinate, acefylline, diniprophylline, etamiphylline, etophylline, proxyphylline, pentophylline, propentophylline, pyridophylline, bamiphylline and mixtures thereof, and preferably caffeine.9.The composition according to any one of preceding claims, wherein the xanthine and / or derivatives thereof is present in the composition in an amount ranging from 0.001 wt. %to 15 wt. %, preferably from 0.002 wt. %to 10 wt. %, and more preferably from 0.005 wt. %to 5 wt. %, relative to the total weight of the composition.10.The composition according to any one of claims 2 to 9, wherein the anionic surfactant is selected from alkali metal, alkaline earth metal or ammonium salt of (C6-C30) alkyl sulfates, (C6-C30) alkyl ether sulfates, and mixtures thereof, and preferably selected from sodium laureth sulfate, sodium lauryl sulfate, ammonium laureth sulfate, ammonium lauryl sulfate, and mixtures thereof.11.The composition according to any one of claims 2 to 10, wherein the anionic surfactant is present in the composition in an amount ranging from 1 wt. %to 50 wt. %, preferably from 2 wt. %to 40 wt. %, and more preferably from 3 wt. %to 30 wt. %, relative to the total weight of the composition.12.The composition according to any one of claims 3 to 11, wherein the amphoteric surfactant is selected from (C8-C18) alkylamido (C1-C6) alkyl betaines, (C8-C18) alkylamido (C1-C6) alkyl hydroxysultaines, (C8-C18) alkyl amphoacetates, and mixtures thereof, and preferably selected from cocamidopropyl betaine, cocamidopropyl hydroxysultaine, sodium cocoamphoacetate, disodium cocoamphodiacetate, and mixtures thereof.13.The composition according to any one of claims 3 to 12, wherein the amphoteric surfactant is present in the composition in an amount ranging from 0.5 wt. %to 20 wt. %, preferably from 1 wt. %to 15 wt. %, and more preferably from 1.5 wt. %to 10 wt. %, relative to the total weight of the composition.14.The composition according to any one of preceding claims, relative to the total weight of the composition, comprising:A) from 0.5 wt. %to 3 wt. %of an acrylates copolymer;B) from 0.005 wt. %to 8 wt. %of niacinamide;C) from 0.005 wt. %to 5 wt. %of caffeine;D) from 3 wt. %to 30 wt. %of an alkali metal, alkaline earth metal or ammonium salt of (C6-C30) alkyl sulfates, (C6-C30) alkyl ether sulfates, or mixtures thereof; andE) from 1.5 wt. %to 10 wt. %of a (C8-C18) alkylamido (C1-C6) alkyl betaine.15.A non-therapeutic method for cleansing and / or caring for keratin materials, especially scalp and / or hair, comprising at least one step of applying the composition according to any one of claims 1 to 14 to the keratin materials.
Citation Information
Patent Citations
Hair-loss-prevention shampoo
CN111714429A
Composition for preventing hair loss and thickening hair and preparation method thereof
CN112043624A
Liquid cleansing composition comprising at least one anionic surfactant and its use for cleansing human keratin materials
US20060135397A1
Hair treatment comprising silicone grafted starch
US20130302267A1
Composition for treating hair, scalp and skin
WO2022069738A1