Keratin treatment composition and mask containing this

Abstract

KERATINOUS MATERIAL CARE COMPOSITION AND MASK COMPRISING THEREOF The present invention relates to a composition, preferably for the care of keratinous materials, comprising: (i) at least one non-ionic polysaccharide selected from mannose homopolymers, mannose and glucose copolymers, mannose and galactose copolymers, and a combination thereof; (ii) at least one ionic polysaccharide selected from xanthan gum, carrageenan, gellan gum, and a combination thereof;and (iii) at least one preservative selected from chlorophenyl glyceryl ethers, aromatic ketone compounds represented by the following chemical formula (I), and a combination thereof, (I) wherein R5, R6, and R7, each independently, represent a hydrogen atom, a hydroxyl group, a C1-C6 alkyl group, or a C1-C6 alkoxy group, provided that at least one of R5, R6, and R7 represents a hydroxyl group, and R represents a C1-C6 alkyl group or an aryl group, wherein the weight ratio of the at least one nonionic polysaccharide to the at least one ionic polysaccharide is at least 1:5. The present invention also relates to a mask comprising said composition and a non-therapeutic process for the treatment of keratinous materials. Figure for abstract: none;

Description

Title of the invention: Keratinous material care composition and mask comprising therethereon technical field

[0001] The present invention relates to a composition and a mask containing it. In particular, the present invention relates to a composition for the treatment of keratinous materials, and a mask comprising it. The present invention also relates to a non-therapeutic process for the treatment of keratinous materials. STATE OF THE ART

[0002] In the cosmetics industry, laminated non-woven material is widely used in sheet mask products to ensure good occlusion.

[0003] The most common occlusive films for sheet mask products are made of polyethylene (PE), polypropylene (PP), polyurethane (PU), or aluminate film. For greater environmental friendliness, mask film made with natural cellulose fibers is becoming a viable option. The best-known natural polymer film on the market is cellulose film, but it is very rigid and cannot be laminated to non-woven fabric without chemical bonding.

[0004] The natural solid hydrogel made from different types of polysaccharides is widely used as a mask sheet; it is suitable for coating onto non-woven fabric by thermal compression without any chemical adhesion.

[0005] Surface stickiness is the challenge to overcome when using a solid hydrogel as a laminating material. Since solid hydrogels are normally made from various polysaccharides containing a high level of hydroxyl groups, this will cause stickiness on the hydrogel surface. This is why the laminated film is not easy to unfold as a mask fabric.

[0006] Therefore, it is desirable to reduce the stickiness of the hydrogel surface. Summary of the invention

[0007] An object of the present invention is to propose a solution to reduce the stickiness of the hydrogel surface intended for mask products.

[0008] Another object of the present invention is to propose a non-therapeutic process for the care of keratinous materials.

[0009] Thus, according to a first aspect, the present invention proposes a composition, preferably for the care of keratinous materials, comprising:

[0010] (i) at least one non-ionic polysaccharide selected from the homopolymers of mannose, mannose-glucose copolymers, mannose copolymers and of galactose, and a combination thereof;

[0011] (ii) at least one ionic polysaccharide selected from xanthan gum, carrageenan, gellan gum and a combination thereof; and

[0012] (iii) at least one preservative selected from chlorophenyl glyceryl ethers, aromatic ketone compounds represented by the following chemical formula (I), and a combination thereof,

[0013] in which

[0014] R5, R6 and R7, each independently, represent a hydrogen atom, a group hydroxyl, a C1-C6 alkyl group or a C1-C6 alkoxy group, provided that at least one of R5, R6 and R7 represents a hydroxyl group, and

[0015] R represents a C1-C6 alkyl group or an aryl group,

[0016] wherein the weight ratio between the at least one non-ionic polysaccharide and the at least one ionic polysaccharide is at least 1:5.

[0017] The surface of the hydrogel formed from the composition according to the present invention is not sticky.

[0018] The composition according to the present invention is suitable for a mask, in particular for masks for the treatment of keratinous materials.

[0019] According to a second aspect, the present invention proposes a mask, preferably for the treatment of keratinous materials, comprising:

[0020] A) a water-insoluble mask fabric, and

[0021] B) the composition according to the first aspect of the present invention on the water-insoluble mask fabric.

[0022] The composition and mask according to the present invention can be used for the care of keratinous materials.

[0023] According to a third aspect, the present invention also proposes a non-therapeutic process for the care of keratinous materials, comprising the application of the mask according to the present invention to the keratinous materials.

[0024] Other subjects and features, aspects and advantages of the present invention will become even clearer upon reading the detailed description and examples that follow. DETAILED DESCRIPTION OF THE INVENTION

[0025] As used herein, unless otherwise indicated, the limits of a range of values ​​are included in that range, in particular in the expressions "between...and..." and "from...to...".

[0026] As used here, the term "including" should be interpreted as encompassing all the specifically cited features as well as optional, additional, unspecified features.

[0027] As used herein, the use of the term "comprising" also discloses the embodiment in which no features other than the specifically cited features are present (i.e., "consisting of").

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as that commonly accepted by a person skilled in the art of the present invention. Where the definition of a term in this description conflicts with the meaning commonly accepted by a person skilled in the art of the present invention, the definition described herein shall prevail.

[0029] Unless otherwise specified, all numerical values ​​expressing a quantity of ingredients and the like used in the description and claims shall be understood as modified by the term "approximately". Accordingly, unless otherwise stated, the numerical values ​​and parameters described herein are approximate values ​​that may be changed according to the desired performance as required.

[0030] As used herein, the expression "at least one" used in this description is equivalent to the expression "one or more".

[0031] For the purposes of the present invention, the term "keratinous material" is understood to refer to the skin. Facial skin and the skin around the eyes are particularly considered in the context of the present invention.

[0032] The composition according to the present invention comprises

[0033] (i) at least one non-ionic polysaccharide selected from homopolymers of mannose, mannose-glucose copolymers, mannose-galactose copolymers, and combinations thereof;

[0034] (ii) at least one ionic polysaccharide selected from xanthan gum, carrageenan, gellan gum and a combination thereof; and

[0035] (iii) at least one preservative selected from chlorophenyl glyceryl ethers, aromatic ketone compounds represented by chemical formula (I) cited above, and a combination thereof,

[0036] wherein the weight ratio between at least one non-ionic polysaccharide and at least one ionic polysaccharide is at least 1:5. Non-ionic polysaccharides

[0037] According to the first aspect, the composition of the present invention comprises at least a non-ionic polysaccharide selected from mannose homopolymers, mannose-glucose copolymers, mannose-galactose copolymers, and a combination thereof.

[0038] Preferably, homopolymers indicate polymers with a degree of polymerization between 2 and 6.

[0039] Preferably, the copolymers indicate polymers with a number average molecular weight of 10,000 to 2,000,000 g / mol, preferably 20,000 to 1,000,000 g / mol, more preferably 50,000 to 500,000 g / mol.

[0040] Preferably, the non-ionic polysaccharide is chosen from mannan, glu-comannan, galactomannan, and a combination thereof.

[0041] Gums comprising mannan, glucomannan, galactomannan, or a combination thereof may also be used as a non-ionic polysaccharide in the composition of the present invention.

[0042] Thus, preferably, the non-ionic polysaccharide is chosen from mannan, glucomannan, galactomannan, konjac gum, Bletilla striata gum, guar gum, fenugreek gum, sesbania gum, carob gum, cassia gum and a combination thereof.

[0043] More preferably, the non-ionic polysaccharide is chosen from glucomannan, konjac gum, Bletilla striata gum and a combination thereof.

[0044] As examples of commercial glucomannan products useful in the composition according to the present invention, we can cite those sold under the name KONJAC GEL CKAA1220 by the company XieLi, and those sold under the name KONJAC FLOUR HWG1002 by the company BLG.

[0045] Advantageously, the non-ionic polysaccharide is present in the composition of the present invention in an amount ranging from 0.03% by weight to 10% by weight, preferably from 0.04% by weight to 5% by weight, more preferably from 0.05% by weight to 1.4% by weight, even more preferably from 0.1% by weight to 1.3% by weight, most preferably from 0.15% by weight to 1.2% by weight, relative to the total weight of the composition. Ionic polysaccharides

[0046] According to the first aspect, the composition of the present invention comprises at least one ionic monosaccharide selected from xanthan gum, carrageenan, gellan gum, and a combination thereof.

[0047] Xanthan gum is a heteropolysaccharide produced by the aerobic fermentation of the bacterium Xanthomonas campestris. Its structure consists of a main chain of [3-D-glucoses [3(1,4)-linked, similar to cellulose. Every other glucose molecule has a trisaccharide side chain composed of an α-D-mannose, an [3- D-glucuronic acid and a terminal [3-D-mannose]. The internal mannose residue is usually acetylated at carbon 6. Approximately 30% of the terminal mannose residues bear a chelated pyruvate group between carbons 4 and 6. The charged glucuronic and pyruvic acids are ionizable and are therefore responsible for the anionic nature of xanthan gum (negative charge up to pH 1). These groups can be neutralized in commercial products with Na+, K+, or Ca2+ ions (Satia Company, 1986). The neutralized form can be converted to the acidic form by ion exchange or by dialysis of an acidic solution.

[0048] The carrageenans that can be used may be chosen in particular from carrageenans of type q, K, v, t, X, y and their mixtures in all proportions.

[0049] The carrageenans of the present invention can be used in acidic or salt form. Acceptable salts, which may be cited without limitation, include lithium, sodium, potassium, calcium, zinc, and ammonium salts, or salts obtained with an organic base counterion, such as a primary, secondary, or tertiary (C1-C6) alkylamine, in particular triethylamine or butylamine. This primary, secondary, or tertiary alkylamine may comprise one or more nitrogen and / or oxygen atoms and may thus include, for example, one or more alcohol functional groups; examples include 2-amino-2-methyl-2-propanol, triethanolamine, and 2-dimethylamino-2-propanol. Lysine or 3-(dimethylamino)propylamine may also be mentioned. These sulfated polysaccharides may also include a mixture of counterions from among those defined above without limitation.

[0050] Gellan gum has a recurring tetrasaccharide structure composed of (glucose-glucuronic acid-glucose-rhamose) motifs.

[0051] The partial structure of gellan gum is as follows:

[0052] -4)-L-Rhap-(al-3)-D-Glcp-([3-l-4)-D-GlcpA-([3-l-4)-D-Glcp-([3-l-,

[0053] Preferably, the composition according to the present invention comprises xanthan gum.

[0054] As examples of commercial xanthan gum products useful in the composition according to the present invention, one can cite those sold under the name KELTROL CG-T by the company CP KELCO.

[0055] Advantageously, the ionic polysaccharide is present in the composition of the present invention in an amount ranging from 0.03% by weight to 10% by weight, preferably from 0.04% by weight to 5% by weight, more preferably from 0.05% by weight to 1.4% by weight, even more preferably from 0.1% by weight to 1.3% by weight, most preferably from 0.15% by weight to 1.2% by weight, relative to the total weight of the composition.

[0056] Preferably, the total amount of the non-ionic polysaccharide and the polysaccharide ionic in the composition of the present invention is 0.1% by weight to 15% by weight, preferably 0.3% by weight to 10% by weight, more preferably 0.5% by weight to 2.5% by weight, even more preferably 0.6% by weight to 2.0% by weight, most preferably 0.8% by weight to 1.5% by weight, relative to the total weight of the composition.

[0057] Preferably, the weight ratio between the non-ionic polysaccharide and the ionic polysaccharide in the composition of the present invention is from 1:4 to 10:1, more preferably from 1:3 to 8:1, more preferably from 1:3 to 5:1, even more preferably from 1:3 to 4:1. Conservatives

[0058] According to the first aspect, the composition of the present invention comprises at least one preservative selected from chlorophenyl glyceryl ethers, aromatic ketone compounds represented by the following chemical formula (I) and a combination thereof, R?

[0059] in which

[0060] R5, R6 and R7, each independently, represent a hydrogen atom, a group hydroxyl, a C1-C6 alkyl group or a C1-C6 alkoxy group, provided that at least one of R5, R6 and R7 represents a hydroxyl group, and

[0061] R represents a Ci-C6 alkyl group or an aryl group.

[0062] As an alkyl group in Ci-C6, one may cite, for example, a methyl group, an ethyl group and a propyl group; a methyl group being preferable.

[0063] As an alkoxy group in Ci-C6, one may cite, for example, a methoxy group, an ethoxy group and a propoxy group; a methoxy group being preferable.

[0064] Examples of aryl groups include, for instance, a phenyl group, a substituted phenyl group, a naphthyl group, and a substituted naphthyl group; a phenyl group being preferable. Examples of substituents include a hydroxyl group and a Ci-C6 alkyl group such as a methyl group.

[0065] It is preferable that the R in the chemical formula (I) above represent a methyl group, an ethyl group or a phenyl group, preferably a methyl group or a phenyl group, and more preferably a methyl group.

[0066] Examples of aromatic ketone compounds include, for instance,

[0067] 2-hydroxyacetophenone,

[0068] 3-hydroxyacetophenone,

[0069] 4-hydroxyacetophenone,

[0070] 2,5-dihydroxyacetophenone,

[0071] 2,6-dihydroxy acetophenone,

[0072] 4-hydroxy-3-methoxyacetophenone,

[0073] 3,4,5-trihydroxy acetophenone,

[0074] 2',2'-dihydroxybenzophenone

[0075] 2-hydroxybenzophenone,

[0076] 2,2',4,4'-tetrahydroxybenzophenone, and

[0077] 3,4,2',4',6'-pentahy droxybenzophenone.

[0078] It is preferable that the aromatic ketone compound be hydroxyacetophenone, more preferably monohydroxyacetophenone, and even more preferably 4-hydroxyacetophenone.

[0079] Preferred examples of chlorophenyl glyceryl ether include chlorphenesin and its derivatives.

[0080] Chlorphenesin is 3-(4-chlorophenoxy)propane-l,2-diol and has the following structure:

[0081] Thus, more preferably, the preservative is chosen from chlorphenesin and its derivatives, hydroxyacetophenone, and a combination of these, preferably the preservative is chosen from chlorphenesin, 4-hydroxyacetophenone, and a combination of these.

[0082] Advantageously, the preservative is present in the composition of the present invention in an amount ranging from 0.02% by weight to 10% by weight, preferably from 0.05% by weight to 5% by weight, more preferably from 0.1% by weight to 1.0% by weight, even more preferably from 0.2% by weight to 0.8% by weight, most preferably from 0.25% by weight to 0.6% by weight, relative to the total weight of the composition. Aqueous phase

[0083] Preferably, the composition of the present invention comprises an aqueous phase.

[0084] Said aqueous phase comprises water.

[0085] Advantageously, water is present in the composition of the present invention in an amount ranging from 60% by weight to 99% by weight, preferably from 65% by weight to 95% by weight, relative to the total weight of the composition.

[0086] Optionally, the aqueous phase comprises an organic solvent miscible with water (at room temperature at 25 °C) selected from ethanol, glycols and polyols having from 2 to 20 carbon atoms, preferably from 2 to 10 carbon atoms, and preferably having from 2 to 6 carbon atoms, such as glycerin, propylene glycol, butylene glycol, pentylene glycol, hexylene glycol, caprylyl glycol, dipropylene glycol, diethylene glycol; and mixtures thereof.

[0087] Preferably, the water-miscible organic solvent, in particular glycerin, is present in the composition of the present invention in an amount ranging from 0.5% by weight to 20% by weight, preferably from 1% by weight to 10% by weight, relative to the total weight of the composition.

[0088] Advantageously, the aqueous phase is present in the composition of the present invention in an amount ranging from 60% by weight to 99.5% by weight, preferably from 65% by weight to 99% by weight, relative to the total weight of the composition.

[0089] Preferably, the composition according to the present invention is oil-free.

[0090] As used herein, "oil-free" indicates that the amount of oil in the product the position of the present invention is less than 2% by weight, relative to the total weight of the composition.

[0091] Preferably, the quantity of oil in the composition of the present invention is less than 1% by weight, relative to the total weight of the composition.

[0092] More preferably, the quantity of oil in the composition of the present invention is less than 0.5% by weight, relative to the total weight of the composition.

[0093] Even more preferably, the composition according to the present invention does not even include oil. cosmetic active ingredients

[0094] Depending on the end purpose, the composition according to the present invention may comprise one or more cosmetic active ingredients.

[0095] It is easy for a person skilled in the art to adjust the quantity of the cosmetic active ingredient based on the end use of the composition according to the present invention. Additional adjuvants or additives

[0096] The composition of the present invention may include additional conventional cosmetic adjuvants or additives, for example, perfumes, chelating agents, pH correcting agents, and mixtures thereof.

[0097] A person skilled in the art can choose the quantity of additional adjuvants or additives so that it does not have a negative impact on the final use of the composition according to the present invention.

[0098] Preferably, the composition according to the present invention comprises salicylic acid, preferably in an amount ranging from 0.005% by weight to 5% by weight, of preferably from 0.01% by weight to 1% by weight, more preferably from 0.05% by weight to 0.5% by weight, relative to the total weight of the composition of the present invention.

[0099] In some embodiments, the composition according to the present invention does not include a surfactant.

[0100] According to a preferred embodiment, the present invention provides a hydrogel composition comprising, relative to the total weight of the composition,

[0101] (i) from 0.15% by weight to 1.2% by weight of at least one non-ionic polysaccharide chosen from glucomannan, konjac gum, Bletilla striata gum and a combination thereof;

[0102] (ii) from 0.15% by weight to 1.2% by weight of at least one ionic polysaccharide selected from xanthan gum, carrageenan, gellan gum and a combination thereof; and

[0103] (iii) from 0.25% by weight to 0.6% by weight of at least one preservative selected from chlorphenesin, 4-hydroxyacetophenone and a combination thereof,

[0104] wherein the weight ratio between the at least one non-ionic polysaccharide and the at least one ionic polysaccharide is from 1:3 to 4:1.

[0105] The composition according to the present invention is intended to be used in combination with a water-insoluble mask fabric.

[0106] According to the second aspect, the present invention proposes a mask, preferably for the treatment of keratinous materials, comprising:

[0107] A) a water-insoluble mask fabric, and

[0108] B) the composition according to the first aspect of the present invention on the water-insoluble mask fabric. Water-insoluble mask fabric

[0109] For the purposes of the invention, the expression "insoluble in water" means that the mask fabric is not soluble in water and does not disintegrate when immersed in water.

[0110] A person skilled in the art can choose a suitable mask fabric and the weight ratio between the mask fabric used and the composition according to the present invention on the basis of the nature of the composition.

[0111] The mask fabric may be a woven, knitted, or non-woven fabric made of natural fibers such as cotton, paper pulp, bamboo, cellulose, alginate, collagen, and protein, of semi-natural fibers such as rayon viscose fibers, or of synthetic fibers such as polyester fibers, polyethylene terephthalate fibers, polyethylene fibers, and polypropylene fibers. Two or more fibers selected from the above may be used in combination.

[0112] The mask fabric may consist of one or more layers. If a multi-layered fabric A multilayer fabric is used, and the material of each layer can be the same or different from the others. Multilayer fabric can be prepared by layering multiple layers made from the materials mentioned above.

[0113] Mask fabric can have a wide variety of shapes, depending on the intended use and the characteristics of the mask.

[0114] The mask fabric is typically designed to adapt to the area on which topical application is desired. For example, when the mask is applied to the face, the mask fabric is designed to conform to the shape of the face, avoiding, if necessary, the areas of the eyes, nostrils, and mouth.

[0115] A person skilled in the art can determine the thickness and texture of the mask fabric according to the intended purpose. Preparation and use

[0116] The composition and mask according to the present invention can be prepared by routine practice.

[0117] Preferably, the composition according to the present invention is in the form of a hydrogel.

[0118] The composition and mask according to the present invention are intended for topical application and can be used in particular for the care of keratinous materials, and in particular human skin.

[0119] According to the third aspect, the present invention proposes a non-therapeutic process for the care of keratinous materials, comprising the application of the mask according to the present invention to the keratinous materials.

[0120] In particular, keratinous materials are the skin of the face and / or the skin around the eyes. Examples

[0121] The present invention is illustrated in more detail by the examples described below, which are given by way of non-limiting illustration.

[0122] The main raw materials used, their trade names and their suppliers are listed in Table 1.

[0123] [Tables 1] INCI Name Trade Name Supplier Glucomannan KONJAC FLOUR HWG1002 BLG Xanthan gum KELTROL CG-T CP KELCO Chlorphenesin NIPAGUARD® CP HP CLARIANT

[0124] Inventive Examples 1 to 6 and Comparative Examples 1 and 2

[0125] The compositions of Inventive Examples (El.) 1 to 6 and of Comparative Examples (EC.) 1 to 2 were prepared according to the quantities of components given in the Table 2. The quantity of each component is given as a percentage by weight of the total weight of the composition containing it.

[0126] [Tables2] Components DI 1 DI 2 DI 3 El. 4 El. 5 El. 6 EC. 1 EC. 2 Glucomannan 0.4 0.2 0.8 0.5 0.5 0.4 0.4 0.1 Xanthan Gum 0.4 0.6 0.2 0.5 1.0 0.4 0.4 0.9 Glycerin 5 5 5 5 5 5 5 5 Salicylic Acid 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Chlorphenesin 0.3 0.3 0.3 0.3 0.3 0 0 0.3 Hydroxyacetophenone 0 0 0 0 0 0.5 0 0 Ethyl Lauroyl Arginate HCl 0 0 0 0 0 0 0.1 0 Water QS100 QS100 QS100 QS100 QS100 QS100 QS100 QS100

[0127] The compositions of Inventive Examples 1 to 6 represent the compositions of the present invention.

[0128] The composition of Comparative Example 1 includes ethyl lauroyl arginate HCl instead of at least one preservative selected from chlorophenyl glyceryl ethers, aromatic ketone compounds represented by chemical formula (I) and a combination thereof.

[0129] The composition of Comparative Example 2 comprises at least one non-ionic polysaccharide and at least one ionic polysaccharide with the weight ratio between the at least one non-ionic polysaccharide and the at least one ionic polysaccharide less than 1:5. Preparation of compositions

[0130] The above compositions were prepared as follows:

[0131] 1) introduction of salicylic acid, chlorphenesin or hydroxyacetophenone or ethyl lauroyl arginate HCl, in water at a temperature of 80 °C, stirring to obtain mixture A;

[0132] 2) mixing glucomannan and xanthan gum in glycerin at temperature room temperature with stirring to obtain mixture B; and

[0133] 3) mixing of mixture A and mixture B at a temperature of 80 °C with stirring to obtain hydrogels. Preparing the masks

[0134] The hydrogels obtained above were heated to 80 °C for 30 minutes and coated onto a cellulose-based fabric using a coating machine to form a 0.3 mm thick film, thus obtaining masks. Evaluation

[0135] The stickiness on the surface of each hydrogel was evaluated as follows.

[0136] 50 g of a hydrogel at 80 °C were poured into a container with a diameter of 40 mm and 60 mm high, cooled to room temperature and stored for 24 hours.

[0137] Synthetic leather (available under the name Supplare from Komatsu seiren) above a probe (P20) on a texture analyzer (Model: Stable Micro Systems TAXT Plus from Xiamen Lotun science co., Ltd).

[0138] The probe was lowered to 1 cm above the hydrogel surface. The test program was started, and the probe moved continuously over 25 mm and then back to the point of separation. The force between the probe and the hydrogel surface was detected and recorded. The lowest point force was used to assess the stickiness of the hydrogel surface; the lower the value, the less sticky it is. When the force is > 8 N, the hydrogel is considered sticky.

[0139] The stickiness of the surface of the hydrogels formed from the compositions of the Comparative Examples and the Inventive Examples is listed in Table 3.

[0140] [Tables3] Properties EL 1 EL 2 EL 3 EL 4 EL 5 EL 6 EC 1 EC 2 Stickiness (N) 1.37 2.33 2.10 1.76 1.88 6.67 10.88 11.89

[0141] It can be seen that the surface of the hydrogels formed from the composition according to the present invention is not sticky.

Claims

Demands

1. Composition, preferably for the care of keratinous materials, comprising (i) at least one non-ionic polysaccharide selected from mannose homopolymers, mannose-glucose copolymers, mannose-galactose copolymers, and a combination thereof; (ii) at least one ionic polysaccharide selected from xanthan gum, carrageenan, gellan gum, and a combination thereof;and (iii) at least one preservative selected from chlorophenyl glyceryl ethers, aromatic ketone compounds represented by the following chemical formula (I), and a combination thereof, » ® KC-0 R? in which R5, R6 and R7, each independently, represent a hydrogen atom, a hydroxyl group, a Ci-C6 alkyl group or a Ci-C6 alkoxy group, provided that at least one of R5, R6 and R7 represents a hydroxyl group, and R represents a Ci-C6 alkyl group or an aryl group, in which the weight ratio between the at least one nonionic polysaccharide and the at least one ionic polysaccharide is at least 1:5.;

2. Composition according to claim 1, wherein the non-ionic polysaccharide is selected from mannan, glucomannan, galactomannan, konjac gum, Bletilla striata gum, guar gum, fenugreek gum, sesbania gum, carob gum, cassia gum, and a combination thereof, more preferably, the non-ionic polysaccharide is selected from glucomannan, konjac gum, Bletilla striata gum, and a combination thereof.

3. Composition according to any one of claims 1 or 2, wherein the total amount of the nonionic polysaccharide and the poly- ionic saccharide is 0.1% by weight to 15% by weight, preferably 0.3% by weight to 10% by weight, more preferably 0.5% by weight to 2.5% by weight, even more preferably 0.6% by weight to 2.0% by weight, most preferably 0.8% by weight to 1.5% by weight, relative to the total weight of the composition.

4. Composition according to any one of claims 1 to 3, wherein the weight ratio of the non-ionic polysaccharide to the ionic polysaccharide in the composition is from 1:4 to 10:1, more preferably from 1:3 to 8:1, more preferably from 1:3 to 5:1, even more preferably from 1:3 to 4:

1.

5. Composition according to any one of claims 1 to 4, wherein the preservative is selected from chlorphenesin and its derivatives, hydroxyacetophenone, and a combination thereof, preferably the preservative is selected from chlorphenesin, 4-hydroxyacetophenone, and a combination thereof, preferably the preservative is present in an amount from 0.02% by weight to 10% by weight, preferably from 0.05% by weight to 5% by weight, more preferably from 0.1% by weight to 1.0% by weight, even more preferably from 0.2% by weight to 0.8% by weight, most preferably from 0.25% by weight to 0.6% by weight, relative to the total weight of the composition.

6. Composition according to any one of claims 1 to 5, which is oil-free.

7. Composition according to any one of claims 1 to 6, which is in hydrogel form.

8. Composition according to claim 1, which is in the form of a hydrogel comprising, relative to the total weight of the composition, (i) 0.15% by weight to 1.2% by weight of at least one non-ionic polysaccharide selected from glucomannan, konjac gum, Bletilla striata gum and a combination thereof; (ii) 0.15% by weight to 1.2% by weight of at least one ionic polysaccharide selected from xanthan gum, carrageenan, gellan gum and a combination thereof; and (iii) from 0.25% by weight to 0.6% by weight of at least one preservative selected from chlorphenesin, 4-hydroxyacetophenone and a combination thereof, wherein the weight ratio between the at least one non-ionic polysaccharide and the at least one ionic polysaccharide is 1:3 to 4:

1.

9. Mask, preferably for the care of keratinous materials, comprising: A) a water-insoluble mask fabric; and B) the composition according to any one of claims 1 to 8 on the water-insoluble mask fabric.

10. Non-therapeutic process of care of keratinous materials, comprising the application of the mask according to claim 9 on keratinous materials.