Skin care formulations

By using functionalized maltodextrin as the film forming agent, the problem of insufficient long-term wear resistance and metastasis resistance of the skin care preparation in the prior art is solved, and the sustainable skin care effect with high biocarbon content is achieved.

CN119968192APending Publication Date: 2025-05-09DOW SILICONES CORP +1
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Patent Information

Application Number
CN202380069581.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2022-10-18
Filing Date
2023-10-12
Publication Date
2025-05-09

AI Technical Summary

Technical Problem

Film-forming agents in existing skin care formulations are difficult to provide long-term wear resistance and metastasis resistance, while lacking sustainable biocarbon solutions.

Method used

Functionalized maltodextrin is used as the film-forming polymer, and the maltodextrin base polymer functionalized by the -Si(R1)3 group has a substitution degree of 1.7 to 3, and does not contain vinyl carbon, forming a bio-based material.

Benefits of technology

Provides water and sebum resistance, skin care products suitable for long-term use, such as colored cosmetics, sunscreen preparations and antiperspirants/deodorants, while increasing biocarbon content.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

There is provided a skin care formulation comprising: a film-forming polymer wherein the film-forming polymer is a functionalized maltodextrin comprising a maltodextrin base polymer functionalized with a-Si (R1) 3 group; wherein each R1 is independently a C1-10 linear or branched saturated alkyl group; wherein the maltodextrin base polymer has a dextrose equivalent (DE) of from 1 to 24; wherein the functionalized maltodextrin has a degree of substitution, DS, of the-Si (R1) 3 group of 1.7 to 3; and wherein the functionalized maltodextrin is free of vinyl carbons.
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Description

[0001] The present invention relates to a skin care preparation. In particular, the present invention relates to a skin care preparation comprising a film-forming polymer, wherein the film-forming polymer is a functionalized maltodextrin, the functionalized maltodextrin comprising a -Si(R 1 ) 3 A maltodextrin base polymer functionalized with a group; wherein each R 1 Independently C 1-10 A linear or branched saturated alkyl group; wherein the maltodextrin base polymer has a dextrose equivalent DE of 1 to 24; wherein the functionalized maltodextrin has a -Si(R 1 ) 3 The functionalized maltodextrin contains no vinyl carbon.

[0002] Many skin care compositions, including pigmented cosmetics (e.g., foundation, concealer, lipstick, mascara) and sunscreens have been developed for longer wear resistance and transfer resistance properties. These properties are usually achieved by using a composition that forms a film after application. Such compositions usually contain volatile solvents that evaporate when in contact with the skin or other keratinous tissue, leaving a layer containing waxes and / or resins, pigments, fillers and active substances. Conventional film formers with desired aesthetic properties, such as polyvinyl pyrrolidone, acrylates, acrylamides and copolymers thereof, often fail to provide the sustainable solutions now sought by brand owners and consumers.

[0003] Therefore, there remains a need for new film-forming ingredients that contribute to the demand for improved long-lasting skin care formulations while at the same time having an increased biochar content when compared to conventional film-forming ingredients.

[0004] The present invention provides a skin care preparation comprising: a film-forming polymer, wherein the film-forming polymer is a functionalized maltodextrin, the functionalized maltodextrin comprising -Si(R 1 ) 3 A maltodextrin base polymer functionalized with a group; wherein each R 1 Independently C 1-10 A linear or branched saturated alkyl group; wherein the maltodextrin base polymer has a dextrose equivalent DE of 1 to 24; wherein the functionalized maltodextrin has a -Si(R 1 ) 3 The functionalized maltodextrin contains no vinyl carbon. DETAILED DESCRIPTION

[0005] Surprisingly, a film-forming polymer has been discovered wherein the film-forming polymer is a functionalized maltodextrin comprising a -Si(R 1 ) 3 A maltodextrin base polymer functionalized with a group; wherein each R 1 Independently C 1-10 A linear or branched saturated alkyl group; wherein the maltodextrin base polymer has a dextrose equivalent DE of 1 to 24; wherein the functionalized maltodextrin has a -Si(R 1 ) 3 The functionalized maltodextrin contains no vinyl carbons. The film-forming polymers of the present invention are bio-based materials. In addition, it has been surprisingly found that the film-forming polymers of the present invention provide water resistance and sebum resistance, which are beneficial for the long-term use of products with desirable aesthetic characteristics, such as color cosmetics, sunscreen formulations, and antiperspirants / deodorants.

[0006] Unless otherwise indicated, ratios, percentages, parts, etc. are by weight.

[0007] The term "dextrose equivalent DE" as used herein and in the appended claims refers to the degree of starch hydrolysis, specifically, the reducing value of a starch hydrolysate material compared to the reducing value of an equal weight of dextrose, expressed as a percentage on a dry basis, as measured by the Lane and Eynon method described in Standard Analytical Method E-26, Corn Refiners Association, 6th Edition, 1977, E-26, pp. 1-3. For example, a maltodextrin with a DE of 10 will have 10% of the reducing power of a dextrose with a DE of 100.

[0008] As used herein and in the appended claims, the term "vinyl carbon" refers to a carbon that participates in a double bond with another carbon.

[0009] As used herein and in the appended claims, the term "free of vinyl carbon" with respect to functionalized maltodextrin means that the functionalized maltodextrin contains vinyl carbon below the detectable limit.

[0010] As used herein and appended hereto, the term "dermatologically acceptable" refers to ingredients typically used in personal care compositions and is intended to emphasize that materials that are toxic when present in amounts typically found in personal care compositions are not contemplated as part of this invention.

[0011] As used herein and in the appended claims, the term "aesthetic characteristics" in connection with skin care formulations refers to visual and tactile sensory properties (eg, smoothness, stickiness, lubricity, texture, color, clarity, turbidity, uniformity).

[0012] Preferably, the skin care preparation according to the invention is selected from the group consisting of: color cosmetic preparations, sunscreen preparations, hand creams, skin creams, face creams, antiperspirant preparations and deodorant preparations. More preferably, the skin care preparation according to the invention is selected from the group consisting of: color cosmetic preparations, sunscreen preparations, antiperspirant preparations and deodorant preparations. Most preferably, the skin care preparation according to the invention is a color cosmetic preparation.

[0013] Preferably, the skin care preparation of the present invention is provided in a product form selected from the group consisting of: cream, non-aqueous solution, emulsion, oil, ointment, paste, gel, lotion, milk, foam, stick and suspension. More preferably, the skin care preparation of the present invention is provided as an emulsion.

[0014] Preferably, the skin care formulation of the present invention comprises: a film-forming polymer (preferably 0.1 wt% to 100 wt% (more preferably 0.5 wt% to 50 wt%; still more preferably 1 wt% to 25 wt%; most preferably 1.5 wt% to 7.5 wt%) of the film-forming polymer, based on the weight of the skin care formulation), wherein the film-forming polymer is a functionalized maltodextrin comprising a -Si(R 1 ) 3 A maltodextrin base polymer functionalized with a group; wherein each R 1 Independently C 1-10 wherein the maltodextrin base polymer has a dextrose equivalent DE of 1 to 24 (preferably, 1 to 20; more preferably, 1 to 18; still more preferably, 1 to 15; most preferably, 1); wherein the functionalized maltodextrin has a -Si(R 1 ) 3The functionalized maltodextrin contains no vinyl carbons; optionally, a dermatologically acceptable carrier (based on the weight of the skin care formulation, preferably, 0 wt % to 98 wt % (more preferably, 30 wt % to 92 wt %; still more preferably, 35 wt % to 90 wt %; most preferably, 40 wt % to 80 wt %) of the dermatologically acceptable carrier); optionally, a color component (based on the weight of the skin care formulation % to 90 wt. % (more preferably, 0.01 wt. % to 65 wt. %; still more preferably, 1 wt. % to 50 wt. %; most preferably, 5 wt. % to 25 wt. %) of the color ingredient, based on the weight of the formulation); and optionally, a sunscreen active substance (preferably, 0 wt. % to 70 wt. % (more preferably, 0.1 wt. % to 65 wt. %; still more preferably, 5 wt. % to 60 wt. %; most preferably, 10 wt. % to 25 wt. %) of the sunscreen active substance, based on the weight of the skin care formulation). More preferably, the skin care formulation of the present invention comprises: a film-forming polymer (preferably, 0.1 wt% to 100 wt% (more preferably, 0.5 wt% to 50 wt%; still more preferably, 1 wt% to 25 wt%; most preferably, 1.5 wt% to 7.5 wt%) of the film-forming polymer, based on the weight of the skin care formulation), wherein the film-forming polymer is a functionalized maltodextrin comprising a -Si(R 1 ) 3 The maltodextrin base polymer is functionalized with a group; wherein -Si(R 1 ) 3 The group is connected to the maltodextrin base polymer via a CO-Si bond; wherein each R 1 Independently C 1-10 wherein the maltodextrin base polymer has a dextrose equivalent DE of 1 to 24 (preferably, 1 to 20; more preferably, 1 to 18; still more preferably, 1 to 15; most preferably, 1); wherein the functionalized maltodextrin has a -Si(R 1 ) 3and a degree of substitution DS of the functionalized maltodextrin group (preferably, 1.8 to 3; more preferably, 2 to 3; most preferably, 2.1 to 2.8); and wherein the functionalized maltodextrin does not contain vinyl carbons; optionally, a dermatologically acceptable carrier (based on the weight of the skin care formulation, preferably, 0 wt % to 98 wt % (more preferably, 30 wt % to 92 wt %; still more preferably, 35 wt % to 90 wt %; most preferably, 40 wt % to 80 wt %) of the dermatologically acceptable carrier); optionally, a color component (based on the weight of the skin care formulation % to 90 wt. % (more preferably, 0.01 wt. % to 65 wt. %; still more preferably, 1 wt. % to 50 wt. %; most preferably, 5 wt. % to 25 wt. %) of the color ingredient, based on the weight of the skin care formulation); and optionally, a sunscreen active substance (preferably, 0 wt. % to 70 wt. % (more preferably, 0.1 wt. % to 65 wt. %; still more preferably, 5 wt. % to 60 wt. %; most preferably, 10 wt. % to 25 wt. %) of the sunscreen active substance, based on the weight of the skin care formulation).

[0015] Preferably, the skin care formulation of the present invention comprises 0.1 wt % to 100 wt % (preferably, 0.5 wt % to 50 wt %; more preferably, 1 wt % to 25 wt %; most preferably, 1.5 wt % to 7.5 wt %) of a film-forming polymer, based on the weight of the skin care formulation; wherein the film-forming polymer is a functionalized maltodextrin comprising a -Si(R 1 ) 3 A maltodextrin base polymer functionalized with a group; wherein each R 1 Independently C 1-10 A linear or branched saturated alkyl group (preferably, a methyl group, an ethyl group, a propyl group, a butyl group and a pentyl group; more preferably, a methyl group, an ethyl group, a propyl group and a butyl group; still more preferably, a methyl group, an ethyl group and a propyl group; still more preferably, a methyl group and an ethyl group; most preferably, a methyl group); wherein the maltodextrin base polymer has a dextrose equivalent DE of 1 to 24 (preferably, 1 to 20; more preferably, 1 to 18; still more preferably, 1 to 15; most preferably, 1); wherein the functionalized maltodextrin has a -Si(R) of 1.7 to 3 1 ) 3The functionalized maltodextrin has a degree of substitution DS of 1.8 to 3; more preferably, 2 to 3; most preferably, 2.1 to 2.8; and wherein the functionalized maltodextrin does not contain vinyl carbons. More preferably, the skin care formulation of the present invention comprises 0.1 wt % to 100 wt % (preferably, 0.5 wt % to 50 wt %; more preferably, 1 wt % to 25 wt %; most preferably, 1.5 wt % to 7.5 wt %) of a film-forming polymer based on the weight of the skin care formulation; wherein the film-forming polymer is a functionalized maltodextrin comprising a -Si(R 1 ) 3 The maltodextrin base polymer is functionalized with a group; wherein -Si(R 1 ) 3 The group is connected to the maltodextrin base polymer via a CO-Si bond; wherein each R 1 Independently C 1-10 A linear or branched saturated alkyl group (preferably, a methyl group, an ethyl group, a propyl group, a butyl group and a pentyl group; more preferably, a methyl group, an ethyl group, a propyl group and a butyl group; still more preferably, a methyl group, an ethyl group and a propyl group; still more preferably, a methyl group and an ethyl group; most preferably, a methyl group); wherein the maltodextrin base polymer has a dextrose equivalent DE of 1 to 24 (preferably, 1 to 20; more preferably, 1 to 18; still more preferably, 1 to 15; most preferably, 1); wherein the functionalized maltodextrin has a -Si(R) of 1.7 to 3 1 ) 3 The degree of substitution DS of the groups (preferably, 1.8 to 3; more preferably, 2 to 3; most preferably, 2.1 to 2.8); and wherein the functionalized maltodextrin contains no vinyl carbons.

[0016] Preferably, the maltodextrin base polymer has a dextrose equivalent DE of 1 to 24 (preferably, 1 to 20; more preferably, 1 to 18; still more preferably, 1 to 15; most preferably, 1). More preferably, the maltodextrin base polymer has a dextrose equivalent DE of 1 to 24 (preferably, 1 to 20; more preferably, 1 to 18; still more preferably, 1 to 15; most preferably, 1); wherein the maltodextrin base polymer is a linear or branched maltodextrin polymer comprising a plurality of glucose structural units. Most preferably, the maltodextrin base polymer has a dextrose equivalent DE of 1 to 24 (preferably, 1 to 20; more preferably, 1 to 18; still more preferably, 1 to 15; most preferably, 1); wherein the maltodextrin base polymer is a linear or branched maltodextrin polymer comprising a plurality of glucose structural units; wherein 90 mol% to 100 mol% (preferably, 92 mol% to 100 mol%; more preferably, 93 mol% to 100 mol%; most preferably, 94.5 mol% to 100 mol%) of the glucose structural units are linked by α-1,4 bonds, and 0 mol% to 10 mol% (preferably, 0 mol% to 8 mol%; more preferably, 0 mol% to 7 mol%; most preferably, 0 mol% to 5.5 mol%) of the glucose structural units are linked by α-1,6 bonds.

[0017] Preferably, the maltodextrin base polymer contains less than 0.01 wt. % alternan, based on the weight of the maltodextrin base polymer. More preferably, the maltodextrin base polymer contains less than 0.001 wt. % alternan, based on the weight of the maltodextrin base polymer. Most preferably, the maltodextrin base polymer contains alternan below the detectable limit.

[0018] Preferably, <0.1 mol % (preferably, <0.01 mol %; more preferably, <0.001 mol %; most preferably, < detectable limit) of the glucose building blocks in the maltodextrin base polymer are linked via β-1,4 bonds.

[0019] Preferably, <0.1 mol % (preferably, <0.01 mol %; more preferably, <0.001 mol %; most preferably, < detectable limit) of the glucose building blocks in the maltodextrin base polymer are linked via β-1,3 bonds.

[0020] Preferably, the skin care formulation of the present invention comprises 0 wt % to 98 wt % (preferably 30 wt % to 92 wt %; more preferably 35 wt % to 90 wt %; most preferably 40 wt % to 80 wt %) of a dermatologically acceptable carrier, based on the weight of the skin care formulation. More preferably, the skin care formulation of the present invention comprises 0 wt % to 98 wt % (preferably 30 wt % to 92 wt %; more preferably 35 wt % to 90 wt %; most preferably 40 wt % to 80 wt %) of a dermatologically acceptable carrier; wherein the dermatologically acceptable carrier is selected from the group consisting of: water; glycols (e.g., ethylene glycol, propylene glycol, butylene glycol, pentylene glycol, hexylene glycol, dipropylene glycol, ethoxydiglycol); C 1-10 Straight or branched alcohols (e.g., methanol, ethanol, propanol, isopropanol, butanol, 2-butoxyethanol); ketones (e.g., acetone); acetates (e.g., methyl acetate); butyl cellosolve; dimethicone; polydimethylsiloxane; alkanes (e.g., isododecane, isohexane); alkanoates (e.g., methyl undecanoate), dermatologically acceptable hydrophobic ester oils (e.g., caprylic capric triglyceride); dicaprylyl carbonate; alkyl benzoates (e.g., C benzoate); 12-15 alkyl esters); hemi-squalane; dioctyl ether; keto acids (e.g., levulinic acid) and mixtures thereof. Still more preferably, the skin care formulations of the present invention comprise 0 wt % to 98 wt % (preferably, 30 wt % to 92 wt %; more preferably, 35 wt % to 90 wt %; most preferably, 40 wt % to 80 wt %) of a dermatologically acceptable carrier; wherein the dermatologically acceptable carrier is selected to evaporate when the skin care formulation is applied to the skin (preferably, human skin). Most preferably, the skin care formulations of the present invention comprise 0 wt % to 98 wt % (preferably, 30 wt % to 92 wt %; more preferably, 35 wt % to 90 wt %; most preferably, 40 wt % to 80 wt %) of a dermatologically acceptable carrier; wherein the dermatologically acceptable carrier comprises isododecane; and wherein the dermatologically acceptable organic carrier is selected to evaporate when the skin care formulation is applied to the skin (preferably, human skin).

[0021] Preferably, the skin care formulation of the present invention comprises 0 wt % to 90 wt % (preferably 0.01 wt % to 65 wt %; more preferably 1 wt % to 50 wt %; preferably 5 wt % to 25 wt %) of a color component, based on the weight of the skin care formulation. More preferably, the skin care formulation of the present invention comprises 0 wt % to 90 wt % (preferably 0.01 wt % to 65 wt %; more preferably 1 wt % to 50 wt %; preferably 5 wt % to 25 wt %) of a color component, based on the weight of the skin care formulation; wherein the color component is selected from the group consisting of an inorganic pigment, an organic pigment, an aqueous pigment dispersion, and mixtures thereof. Still more preferably, the skin care formulation of the present invention comprises from 0 wt.% to 90 wt.% (preferably, from 0.01 wt.% to 65 wt.%; more preferably, from 1 wt.% to 50 wt.%; preferably, from 5 wt.% to 25 wt.%) of a color ingredient, based on the weight of the skin care formulation; wherein the color ingredient is selected from the group consisting of Ext. D&C Yellow No. 2, Ext. D&C Violet No. 2, FD&C Red No. 4, FD&C Red No. 40, FD&C Yellow No. 5, FD&C Yellow No. 6, FD&C Green No. 3, FD&C Blue No. 1, D&C Yellow No. 7, D&C Yellow No. 8, D&C Yellow No. 10, D&C Yellow No. 11, D&C Violet No. 2, D&C Red No. 6, D&C Red No. 7, D&C Red No. 17, D&C Green No. 3, D&C Blue No. 1 D&C Red No. 21, D&C Red No. 22, D&C Red No. 27, D&C Red No. 28, D&C Red No. 30, D&C Red No. 31, D&C Red No. 34, D&C Red No. 33, D&C Red No. 36, D&C Green No. 5, D&C Green No. 6, D&C Green No. 8, D&C Blue No. 4, D&C Orange No. 4, D&C Orange No. 5, D&C Orange No. 10, D&C Orange No. 11, D&C Brown No. 1, aluminum powder, carmine, bismuth citrate, bismuth oxychloride, bronze powder, caramel, carmine, beta-carotene, chromium green hydroxide, chromium green oxide, copper chlorophyll, copper powder, dihydroxyacetone, ammonium ferric ferrocyanide, ferric ferrocyanide, guanine, iron oxide, manganese violet, mica, silver, titanium dioxide, ultramarine, zinc oxide, and mixtures thereof. Still more preferably, the skin care formulation of the present invention comprises 0 wt % to 90 wt % (preferably 0.01 wt % to 65 wt %; more preferably 1 wt % to 50 wt %; preferably 5 wt % to 25 wt %) of a color component based on the weight of the skin care formulation; wherein the color component comprises at least one iron oxide. Most preferably, preferably, the skin care formulation of the present invention comprises 0 wt % to 90 wt % (preferably 0.01 wt % to 65 wt %; more preferably 1 wt % to 50 wt %; preferably 5 wt % to 25 wt %) of a color component based on the weight of the skin care formulation; wherein the color component comprises a mixture of iron oxides.

[0022] Preferably, the color cosmetic preparation according to the invention comprises 0% to 70% by weight (more preferably, 0.1% to 65% by weight; still more preferably, 5% to 60% by weight; most preferably, 10% to 25% by weight) of sunscreen actives, based on the weight of the skin care preparation. More preferably, the skin care preparation according to the invention comprises 0% to 70% by weight (more preferably, 0.1% to 65% by weight; still more preferably, 5% to 60% by weight; most preferably, 10% to 25% by weight) of sunscreen actives, based on the weight of the skin care preparation; wherein the sunscreen active is a UV radiation absorber. Still more preferably, the skin care formulations of the present invention comprise from 0% to 70% by weight (more preferably, from 0.1% to 65% by weight; still more preferably, from 5% to 60% by weight; most preferably, from 10% to 25% by weight) of a sunscreen active, based on the weight of the skin care formulation; wherein the sunscreen active is a UV radiation absorber selected from the group consisting of: physical blockers (e.g., red petrolatum, titanium dioxide, zinc oxide); chemical absorbers (e.g. , 1-(4-methoxyphenol)-3-(4-tert-butylphenyl)propane-1,3-dione (INCI: butyl methoxydibenzoylmethane); 2-hydroxy-4-methoxybenzophenone (INCI: benzophenone-3); dioxybenzophenone; sulisophenone; menthyl anthranilate; p-aminobenzoic acid; p-dimethylaminobenzoic acid valeric acid; octyl p-dimethylaminobenzoate; 4-bis(hydroxypropyl) ethyl p-aminobenzoate; polyethylene glycol (PEG-25) Aminobenzoic acid esters; ethyl 4-bis(hydroxypropyl)aminobenzoate; diethanolamine p-methoxycinnamate; 2-ethoxyethyl p-methoxycinnamate; ethylhexyl p-methoxycinnamate; octyl p-methoxycinnamate; isoamyl p-methoxycinnamate; 2-ethylhexyl-2-cyano-3,3-diphenyl-acrylate; 2-ethylhexyl-2-cyano-3,3-diphenyl-2-acrylate (INCI: octocrylene); 2-ethylhexyl-2-hydroxybenzoate ( INCI: ethylhexyl salicylate); homomanic salicylate; aminobenzoic acid glyceryl ester; triethanolamine salicylate; gallylgallate trioleate; anacardium containing dihydroxyacetone; 2-phenylbenzimidazole-5-sulfonic acid; 4-methylbenzylidene camphor; avobenzone; triazine; benzotriazole; amide containing vinyl group; cinnamic acid amide; sulfonated benzimidazole; 3,3,5-trimethylcyclohexyl 2-hydroxybenzoate (INCI: homosalate); and mixtures thereof. Still more preferably, the skin care preparation of the present invention comprises 0% to 70% by weight (more preferably, 0.1% to 65% by weight; still more preferably, 5% to 60% by weight; most preferably, 10% to 25% by weight) of a sunscreen active, based on the weight of the skin care preparation; wherein the sunscreen active is a UV radiation absorber comprising a mixture of UV radiation absorbers.Most preferably, the skin care formulations of the present invention comprise from 0% to 70% by weight (more preferably, from 0.1% to 65% by weight; still more preferably, from 5% to 60% by weight; most preferably, from 10% to 25% by weight) of a sunscreen active, based on the weight of the skin care formulation; wherein the sunscreen active is a UV radiation absorber which is a mixture of UV absorbers comprising at least one of the following: titanium dioxide; 1-(4-methoxyphenol)-3-(4-tert-butylphenyl)propane-1,3-dione; 2-ethylhexyl-2-hydroxybenzoate; 2-ethylhexyl-2-cyano-3,3 diphenyl-2-acrylate; 2-hydroxy-4-methoxybenzophenone and 3,3,5-trimethylcyclohexyl 2-hydroxybenzoate.

[0023] Preferably, the skin care formulation of the present invention optionally further comprises an additive. More preferably, the skin care formulation of the present invention further comprises an additive, wherein the additive is selected from the group consisting of: a water-proofing agent, an emollient, a preservative, an antioxidant, a fragrance, a humectant, a rheology modifier, an aesthetic modifier, a vitamin, a skin protectant, an oil, an emulsifier, a surfactant, a pearlescent agent, a consistency factor, a thickener, a super fattening agent, a stabilizer, a polymer, a silicone compound, a fat, a wax, a lecithin, a phospholipid, a filler, a light control powder, an antiperspirant active substance (e.g., an aluminum salt, a zirconium salt) and a mixture thereof.

[0024] Preferably, the skin care formulations of the present invention have a pH of 4 to 9. More preferably, the skin care formulations of the present invention have a pH of 4.5 to 8.5. Still more preferably, the skin care formulations of the present invention have a pH of 5.0 to 8.0. Most preferably, the skin care formulations of the present invention have a pH of 5.5 to 7.5.

[0025] Some embodiments of the present invention will now be described in detail in the following examples.

[0026] Synthesis S1: Silylated maltodextrin

[0027] Combine ammonium chloride (412.4 mg, 0.05 eq.) and 1 maltodextrin (DE 1, from Roquette) (25.0 g, 0.154 mol, 1.0 eq.). The resulting mixture was transferred to the reactor. Hexamethyldisilazane (80.87 g, 3.25 eq.) was then added dropwise to the reactor contents. Dimethyl sulfoxide (10.8 g) was then added to the reactor contents. The reactor was then sealed and flushed continuously with nitrogen. The reactor contents were stirred at 20 Hz. Heat was applied to the reactor using a heating jacket set at 40 ° C, and stirring was increased to 50 Hz. After 30 minutes, the heating jacket was set to 50 ° C. The temperature setting of the heating jacket was then increased to 80 ° C in increments of 10 ° C within 1 hour. After the temperature of the reactor contents reached 71 ° C, the reactor contents were stirred for 1 hour. The heating jacket was then removed and stirring was reduced to 25 Hz. When the reactor contents cooled to <50 ° C, stirring was stopped and 400 mL of ethyl acetate was added to the reactor contents. Stirring was then continued at 25 Hz for 5 minutes. Stirring was then stopped and the organic layer was transferred to a collection tank. Ethyl acetate (100 mL) was then added to the reactor contents and stirring was continued at 25 Hz for 5 minutes. Stirring was then stopped and the organic layer was transferred to the contents of the collection tank. The contents of the collection tank were transferred to a separatory funnel and washed twice with distilled water (2×250 mL). The organic layer was collected in a conical flask and dried over sodium sulfate. The organic layer was then concentrated under vacuum to obtain a fine white powder (about 46.3 g). By 1 H NMR determination of -Si(CH 3 ) 3 The degree of substitution DS is 1.67.

[0028] Synthesis S2: Silylated maltodextrin

[0029] Combine ammonium chloride (454.4 mg, 0.05 eq.) and 1 maltodextrin (DE 1, from Roquette) (27.0g, 0.166mol, 1.0 equivalent). The resulting mixture is transferred to the reactor. Then hexamethyldisilazane (87.34g, 3.25 equivalents) is added dropwise to the reactor contents. Then dimethyl sulfoxide (11.66g) is added to the reactor contents. The reactor is then sealed and flushed continuously with nitrogen. The reactor contents are stirred at 20Hz. A heating jacket with a temperature setting of 92°C is used to apply heat to the reactor, and stirring is increased to 50Hz. After the temperature of the reactor contents reaches 83°C, the reactor contents are stirred for 1.5 hours. The heating jacket is then removed and stirring is reduced to 25Hz. When the reactor contents are cooled to <50°C, stirring is stopped and 400mL of ethyl acetate is added to the reactor contents. Then stirring is continued for 5 minutes at 25Hz. Then stirring is stopped and the organic layer is transferred to a collection tank. Then ethyl acetate (100mL) is added to the reactor contents, and stirring is continued for 5 minutes at 25Hz. Then stop stirring and transfer the organic layer to the contents of the collection tank. Transfer the contents of the collection tank to a separatory funnel and wash twice with distilled water (2 x 250 mL). Collect the organic layer in a conical flask and dry over sodium sulfate. The organic layer is then concentrated under vacuum to give a fine white powder (about 56.6 g). 1 H NMR determination of -Si(CH 3 ) 3 The degree of substitution DS is 2.1.

[0030] Synthesis S3: Silylated maltodextrin

[0031] Combine ammonium chloride (445.4 mg, 0.05 eq.) and 1 maltodextrin (DE 1, from Roquette) (27.0g, 0.167mol, 1.0 equivalent). The resulting mixture is transferred to the reactor. Then hexamethyldisilazane (60.47g, 2.25 equivalents) is added dropwise to the reactor contents. Then dimethyl sulfoxide (11.7g) is added to the reactor contents. The reactor is then sealed and flushed continuously with nitrogen. The reactor contents are stirred at 20Hz. Heat is applied to the reactor using a heating jacket set at 55°C, and stirring is increased to 50Hz. After 5 minutes, the heating jacket is set to 102°C. The reactor contents are stirred for 2 hours. The heating jacket is then removed and stirring is reduced to 25Hz. When the reactor contents are cooled to <50°C, stirring is stopped and 400mL of ethyl acetate is added to the reactor contents. Then stirring is continued for 5 minutes at 25Hz. Then stirring is stopped and the organic layer is transferred to a collection tank. Then ethyl acetate (100mL) is added to the reactor contents, and stirring is continued for 5 minutes at 25Hz. Then stop stirring and transfer the organic layer to the contents of the collection tank. Transfer the contents of the collection tank to a separatory funnel and wash twice with distilled water (2 x 250 mL). Collect the organic layer in a conical flask and dry over sodium sulfate. The organic layer is then concentrated under vacuum to give a fine white powder (about 407.3 g). 1 H NMR determination of -Si(CH 3 ) 3 The degree of substitution DS is 2.55.

[0032] Synthesis S4: Silylated maltodextrin

[0033] Ammonium chloride (33.0 mg, 0.05 eq) and Maltrin M250 maltodextrin (DE 23-27 from Grain Processing Corporation) (2.0 g, 12.3 mM, 1.0 eq) were added to a 25 mL scintillation vial. Hexamethyldisilazane (4.48 g, 2.25 eq) was then added dropwise to the vial contents. Dimethyl sulfoxide (1 g) was then added to the vial contents and the vial was capped with a screw cap septum with two venting needles on the top. The vial was placed on an aluminum heating block set to 85 °C for 1.5 hours. The vial contents were then cooled to <50 °C and diluted with ethyl acetate (150 mL). The organic layer was transferred to a separatory funnel and washed three times with distilled water (3×50 mL). The organic layer was collected in a conical flask and dried over sodium sulfate. The organic layer was then concentrated under vacuum to give a fine white powder (approximately 4.15 g). By 1 H NMR determination of -Si(CH 3 )3 The degree of substitution DS is 2.2.

[0034] Synthesis S5: Silylated cellulose

[0035] Polysaccharide (BioFloc XV, 15.0 g, from Tartas) was weighed in a 2L three-necked flask equipped with a nitrogen inlet and a temperature controller. Solvent (N, N-dimethylacetamide, 331 g, from Sigma-Aldrich) was added and the reaction mixture was placed under a nitrogen atmosphere with an outlet to avoid overpressure in the reactor. Silane (hexamethyldisilazane, 30 g, from The Dow Chemical Company) was added to the reaction mixture at one time. The mixture was slowly heated to a set temperature of 130°C and stirred for 7.5 hours. The solution was cooled naturally, and then xylene (600 g, from Sigma-Aldrich) was added to the reaction mixture together with additional hexamethyldisilazane (20 g), and the mixture was stirred for 4 hours at a set temperature of 125°C. The reactor contents were cooled to room temperature overnight. The reactor contents were then transferred to a separatory funnel and non-solvent precipitated by dropwise addition to 2 L of vigorously stirred methanol. The product was isolated by filtration and dried overnight at 50 ° C in a vacuum oven. The product was then suspended in 500 ml of methanol, then filtered and dried overnight at 50 ° C in a vacuum oven. The product was analyzed by attenuated total reflection infrared to determine that the DS was 2.23.

[0036] Synthesis S6: Silylated cellulose

[0037] Polysaccharide (E-60, 15.2g, from GP Cellulose) was weighed in a 2L three-necked flask equipped with a nitrogen inlet and a temperature controller. Add solvent (N, N-dimethylacetamide, 324g) and place the reaction mixture under a nitrogen atmosphere with an outlet to avoid reactor overpressure. Silane (hexamethyldisilazane, 50.2g, from Dow Chemical Company) was added to the reaction mixture at one time with saccharin catalyst (850mg, from Sigma-Aldrich). The mixture was slowly heated to a set temperature of 130°C and stirred for 5 hours. The solution was cooled naturally, then xylene (400g) was added to the reaction mixture and the mixture was stirred at 120°C for 8 hours. The reactor contents were cooled to room temperature overnight. Then, the cooled reactor contents were transferred to a separatory funnel, and non-solvent precipitation was carried out by dropwise addition to 2L of vigorously stirred methanol. The product was separated by filtration and dried overnight at 50°C in a vacuum oven. The product was then suspended in 500 ml of methanol, then filtered again and dried overnight in a vacuum oven at 50° C. The DS was determined to be 2.6 by attenuated total reflection infrared analysis.

[0038] Synthesis S7: Silylated maltodextrin

[0039] To a 25 mL scintillation vial was added ammonium chloride (33.0 mg, 0.05 eq) and Maltrin M200 maltodextrin (DE range 16.5-19.9, from Grain Processing Company) (2.0 g, 12.3 mM, 1.0 eq). Hexamethyldisilazane (3.58 g, 1.80 eq) was then added dropwise to the vial contents. Dimethyl sulfoxide (0.75 g) was then added to the vial contents, and the vial was equipped with a septum cap with two vent needles. The vial was placed on a heating block set to 80 °C for 1 hour. The vial contents were then cooled to <50 °C and diluted with ethyl acetate (150 mL). The organic layer was transferred to a separatory funnel and washed three times with distilled water (3×50 mL). The organic layer was collected in a conical flask and dried over sodium sulfate. The organic layer was then concentrated under vacuum to give a fine white powder (approximately 3.6 g). By 1 H NMR determination of -Si(CH 3 ) 3 The degree of substitution DS is 2.76.

[0040] Synthesis S8: Silylated maltodextrin

[0041] To a 25 mL scintillation vial was added ammonium chloride (33.0 mg, 0.05 eq) and Maltrin M040 (DE 4-7 from Grain Processing Company) (2.0 g, 12.3 mM, 1.0 eq). Hexamethyldisilazane (4.48 g, 2.25 eq) was then added dropwise to the vial contents. Dimethyl sulfoxide (1 g) was then added to the vial contents, and the vial was equipped with a septum cap with two vent needles. The vial was placed on a heating block set to 85 °C for 1.5 hours. The vial contents were then cooled to <50 °C and diluted with ethyl acetate (150 mL). The organic layer was transferred to a separatory funnel and washed three times with distilled water (3×50 mL). The organic layer was collected in a conical flask and dried over sodium sulfate. The organic layer was then concentrated under vacuum to give a fine white powder (approximately 4.15 g). By 1 H NMR determination of -Si(CH 3 ) 3 The degree of substitution DS is 2.5.

[0042] Synthesis S9: Silylated maltodextrin

[0043] Combine ammonium chloride (445.4 mg, 0.05 eq.) and 1 maltodextrin (DE 1, from Roquette) (27.0g, 0.166mol, 1.0 equivalent). The resulting mixture is transferred to the reactor. Then hexamethyldisilazane (87.34g, 3.25 equivalents) is added dropwise to the reactor contents. Then dimethyl sulfoxide (11.66g) is added to the reactor contents. The reactor is then sealed and flushed continuously with nitrogen. The reactor contents are stirred at 20Hz. A heating jacket with a temperature setting of 50°C is used to apply heat to the reactor, and stirring is increased to 50Hz. After 20 minutes, the heating jacket is set to 100°C. The reactor contents are stirred for 2 hours. The heating jacket is then removed and stirring is reduced to 25Hz. When the reactor contents are cooled to <50°C, stirring is stopped and 400mL of ethyl acetate is added to the reactor contents. Then stirring is continued for 5 minutes at 25Hz. Then stirring is stopped and the organic layer is transferred to a collection tank. Ethyl acetate (100 mL) was then added to the reactor contents and stirring was continued at 25 Hz for 5 minutes. Stirring was then stopped and the organic layer was transferred to the contents of the collection tank. The contents of the collection tank were transferred to a separatory funnel and washed twice with distilled water (2×250 mL). The organic layer was collected in a conical flask and dried over sodium sulfate. The organic layer was then concentrated under vacuum to obtain a fine white powder (about 53 g). 1H NMR determination of -Si(CH 3 ) 3 The degree of substitution DS is 2.23.

[0044] Synthesis of S10: Silylated maltodextrin

[0045] To a 25 mL scintillation vial was added ammonium chloride (33.0 mg, 0.05 eq) and 1 maltodextrin (DE1, from Roquette) (2.0 g, 12.3 mM, 1.0 equiv). Hexamethyldisilazane (4.48 g, 2.25 equiv) was then added dropwise to the vial contents. Dimethyl sulfoxide (1 g) was then added to the vial contents, and the vial was equipped with a septum cap with two vent needles. The vial was placed on a heating block set to 85°C for 2 hours. The vial contents were then cooled to <50°C and diluted with ethyl acetate (150 mL). The organic layer was transferred to a separatory funnel and washed three times with distilled water (3×50 mL). The organic layer was collected in a conical flask and dried over sodium sulfate. The organic layer was then concentrated under vacuum to give a fine white powder (approximately 3.96 g). By 1 H NMR determination of -Si(CH 3 ) 3 The degree of substitution DS is 2.51.

[0046] Synthesis of S11: Silylated maltodextrin

[0047] Combine ammonium chloride (445.4 mg, 0.05 eq.) and 1 maltodextrin (DE 1, from Roquette) (27.0g, 0.166mol, 1.0 equivalent). The resulting mixture is transferred to the reactor. Then hexamethyldisilazane (87.34g, 3.25 equivalents) is added dropwise to the reactor contents. Then dimethyl sulfoxide (11.66g) is added to the reactor contents. The reactor is then sealed and flushed continuously with nitrogen. The reactor contents are stirred at 20Hz. A heating jacket with a temperature setting of 50°C is used to apply heat to the reactor, and stirring is increased to 50Hz. After 20 minutes, the heating jacket is set to 100°C. The reactor contents are stirred for 2 hours. The heating jacket is then removed and stirring is reduced to 25Hz. When the reactor contents are cooled to <50°C, stirring is stopped and 400mL of ethyl acetate is added to the reactor contents. Then stirring is continued for 5 minutes at 25Hz. Then stirring is stopped and the organic layer is transferred to a collection tank. Ethyl acetate (100 mL) was then added to the reactor contents and stirring was continued at 25 Hz for 5 minutes. Stirring was then stopped and the organic layer was transferred to the contents of the collection tank. The contents of the collection tank were transferred to a separatory funnel and washed twice with distilled water (2×250 mL). The organic layer was collected in a conical flask and dried over sodium sulfate. The organic layer was then concentrated under vacuum to obtain a fine white powder (about 56.3 g). 1 H NMR determination of -Si(CH 3 ) 3 The degree of substitution DS is 2.42.

[0048] Synthesis of S12: Silylated maltodextrin

[0049] To a 25 mL scintillation vial was added ammonium chloride (24.7 mg, 0.05 eq) and dried 1 maltodextrin (DE 1, from Roquette) (1.5 g, 3.25 eq.). Hexamethyldisilazane (4.85 g, 3.25 eq.) was then added dropwise to the vial contents. Dimethyl sulfoxide (0.8 g) was then added to the vial contents, and the vial was equipped with a septum cap with two vent needles. The vial was placed on a heating block set to 90°C for 4 hours. The vial contents were then cooled to <50°C and diluted with ethyl acetate (200 mL). The organic layer was transferred to a separatory funnel and washed three times with a 50 / 50 vol / vol mixture of brine and distilled water (3×60 mL). The organic layer was collected in a conical flask and dried over sodium sulfate. The organic layer was then concentrated under vacuum to give an off-white crystalline solid, which was easily reduced to a fine powder with a spatula. The product powder was dried in an oven at 50°C under vacuum for 5 hours. By 1 H NMR determination of -Si(CH3 ) 3 The degree of substitution DS is 2.42.

[0050] Synthesis of S13: Silylated maltodextrin

[0051] Ammonium chloride (24.7 mg, 0.05 eq.) and dry Maltrin M150 maltodextrin (DE 13-17, from a grain processing company) (1.5 g, 1.0 eq.) were added to a 25 mL scintillation vial. Hexamethyldisilazane (4.85 g, 3.25 eq.) was then added dropwise to the vial contents. Dimethyl sulfoxide (0.8 g) was then added to the vial contents, and the vial was equipped with a septum cap with two exhaust needles. The vial was placed on a heating block set at 90 ° C for 2.5 hours. The vial contents were then cooled to <50 ° C and diluted with ethyl acetate (200 mL). The organic layer was transferred to a separatory funnel and washed three times (3 × 60 mL) with a mixture of 50 / 50 vol / vol saline and distilled water. The organic layer was collected in a conical flask and dried over sodium sulfate. The organic layer was then concentrated under vacuum to give an off-white crystalline solid which was easily reduced to a fine powder with a spatula. The product powder was dried in an oven at 50 °C under vacuum for 5 hours. 1 H NMR determination of -Si(CH 3 ) 3 The degree of substitution DS is 2.64.

[0052] Solubility Screening (2 wt%)

[0053] As shown in Table 1, the products of synthetic S1-S6 (0.1 g) and commercial maltodextrin with a DE of 1 ( 1, from Roquette) was combined with various solvents (4.9 g) in separate vials to evaluate the solubility of the products of Synthesis S1-S6 and commercial maltodextrin in different carriers. The resulting 2 wt% solutions were stirred with a magnetic stir bar at about 22°C for 1 hour. The carrier and solubility observations are provided in Table 1.

[0054] Table 1

[0055]

[0056] Solubility Screening (50 wt%)

[0057] The products of syntheses S2-S3 and S7 (2 g) were evaluated for solubility in isododecane (2 g) as shown in Table 2. The resulting 50 wt% solution was stirred with a magnetic stir bar at about 22° C. for 1 hour. The support and solubility observations are provided in Table 2.

[0058] Table 2

[0059]

[0060] Viscosity in Isododecane

[0061] As shown in Table 3, the products of synthesizing S5-S6 and S9 were dissolved in isododecane at different concentrations. The viscosity of the resulting solution was then measured at about 22°C and 100 rpm using a Brookfield DV-111-ultra viscometer equipped with an SC4-28 spindle. The results are provided in Table 3.

[0062] Table 3

[0063] Solute Concentration (weight %) Viscosity(cP) Synthesis of S5 2 3,500 Synthesis of S6 2 3,200 Synthesis of S6 5 gel Synthesis of S9 2 0 Synthesis of S9 5 2 Synthesis of S9 20 5 Synthesis of S9 40 305 Synthesis of S9 50 1,260

[0064] Comparative Examples CF1-CF2 and Examples F1-F4: Colored Dispersions

[0065] In Comparative Examples CF1-CF2 and Examples F1-F4, a pigmented dispersion was prepared by mixing red iron oxide (CI 77491) (and) triethoxycaprylylsilane pigment from Gelest (1 g), carrier (9.8 g) with the ingredients described in Table 4 (0.2 g).

[0066] Table 4

[0067] Example Carrier Element Comparative Example CF1 Isododecane none Comparative Example CF2 Isododecane Synthesis of S7 Example F1 Isododecane Synthesis of S8 Example F2 Isododecane Synthesis of S9 Example F3 Isododecane Synthetic S3 Example F4 Isododecane Synthetic S10

[0068] Erasure resistance

[0069] By using an automatic coating machine and a rectangular applicator to be coated on Vitro-skin (from IMS) with 50 μm (wet thickness), a dispersion film prepared according to Comparative Examples CF1-CF2 and Examples F1-F4 was deposited. The deposited film was air-dried overnight in an environmentally controlled room (about 22°C and 50% RH). Collagen was perforated and adhered to the XRF cylindrical support using double-sided tape. The initial L value, a value, and b value were measured using a spectrophotometer from BYK-Gardner (Germany). The ΔE value of the film was calculated according to the measured L value, a value, and b value. Then, the XRF cylinder was placed on a felt tape (thickener / film coating was in contact with the tape) and consumed using a washability tester (Braive Instruments SA, Belgium). The felt tape was replaced between each erasing cycle. The results of the erase test are provided in Table 5. In the erase cycle, the erase resistance (also known as wear resistance) is directly related to ΔE. The lower the ΔE, the better the wear resistance.

[0070] Table 5

[0071] Film of Example Carrier DE DS ΔE(50 cycles) Comparative Example CF1 Isododecane -- -- 26.5 Comparative Example CF2 Isododecane 16.9-19.9 2.76 3.01 Example F1 Isododecane 4-7 2.5 2.10 Example F2 Isododecane 1 2.2 2.73 Example F3 Isododecane 1 2.55 2.10 Example F4 Isododecane 1 2.51 2.0

[0072] Comparative Examples CF3-CF5 and Examples F5-F9: Water Repellency

[0073] The water repellency of the film is strongly affected by the surface energy. High water repellency is desired for skin care applications. The water repellency of the preparation can be evaluated by measuring the water contact angle of the deposited film of the preparation. Specifically, a film from a dispersion formed using the ingredients described in Table 6 was coated onto a glass slide (50 μm) using a blade applicator, wherein the gap with the received polymer solution was set to 6 mils (0.1524 mm), and the film was air-dried in an environmentally controlled room (about 22 ° C and 50% RH) for at least 72 hours. Then a drop shape analyzer (Kruss DSA100) was used to measure the water contact angle (in degrees) of the deposited film 4 seconds and 120 seconds after the water droplets were deposited on the substrate. The results of the water contact angle measurement are provided in Table 6. The larger the contact angle, the greater the water repellency. Contact angles exceeding 90° are considered excellent.

[0074] Table 6

[0075]

[0076] Comparative Examples CF6-CF9 and Examples F10-F12: Colored Cosmetic Formulations

[0077] Color cosmetic formulations were prepared in Comparative Examples CF6-CF9 and Examples F10-F12 having the formulations described in Table 7. The Phase A ingredients and Phase B ingredients were mixed in a separate container. The Phase B ingredients and Phase C ingredients were combined in a separate beaker and mixed until uniform. The mixed Phase B ingredients and Phase C ingredients were then added to the combined Phase A ingredients and mixed until uniform.

[0078] Table 7

[0079]

[0080] Erasure resistance

[0081] By using an automatic coating machine and a rectangular applicator to coat Vitro-skin (from IMS) with 25 μm (wet thickness), a film is deposited by a colored cosmetic preparation prepared according to Comparative Example CF6 and Example F10. The deposited film is air-dried overnight in an environmentally controlled room (about 22°C and 50% RH). The felt is perforated and adhered to the XRF cylindrical support using double-sided tape. The initial L value, a value, and b value are measured using a spectrophotometer from BYK-Gardner (Germany). The ΔE value of the film is calculated according to the measured L value, a value, and b value. Then, the XRF cylinder is placed on a felt tape (thickener / film coating is in contact with the tape) and a washability tester (Braive Instruments SA, Belgium) is used for consumption (runthrough). The felt tape is replaced between each erasing cycle. The results of the erasing test are provided in Table 8. In the erasing cycle, the erasure resistance (also known as wear resistance) is directly related to ΔE. The lower the ΔE, the better the wear resistance.

[0082] Table 8

[0083] Film of Example ΔE after 50 cycles Comparative Example CF6 17 Example F10 4

[0084] Stability of formulation

[0085] The storage stability of the color cosmetic formulations prepared according to Comparative Examples CF7-CF9 and Examples F10-F12 was evaluated after 6 months of storage at room temperature (21° C.) and 40° C. The results are provided in Table 9.

[0086] Table 9

[0087]

[0088] Comparative Examples CF10-CF12 and Example F13: Dispersions

[0089] Dispersions were prepared in Comparative Examples CF10-CF12 and Example F13 by mixing isododecane (9.8 g) with the ingredients described in Table 10 (0.2 g).

[0090] Table 10

[0091]

[0092] Water repellency

[0093] The water repellency of the film is strongly affected by the surface energy. High water repellency is desired for colored cosmetic applications. The water repellency of the formulation can be evaluated by measuring the water contact angle of the deposited film of the formulation. Specifically, the polymer solution received as is used a square film applicator with a gap set to 50 μm (wet thickness), and the film was deposited on glass by the dispersion prepared according to Comparative Examples CF10-CF12 and Example F13, and the film was air dried in an oven (about 32°C and 50% RH) for at least 16 hours. Using a drop shape analyzer (Kruss DSA100), the water contact angle (in degrees) was measured at approximately 4 seconds and 115 seconds after the water droplets were deposited on the substrate. The results of the water contact angle measurements are provided in Table 11. The contact angle retention reported in Table 11 is according to the following formula:

[0094] Retention rate (in %) = [(contact angle at time = 115 seconds) / (contact angle at time = 4 seconds)] * 100

[0095] Table 11

[0096]

Claims

1. A skin care preparation comprising: The film-forming polymer is a functionalized maltodextrin comprising a -Si(R 1 )3 groups functionalized maltodextrin base polymer; wherein each R 1 Independently C 1-10 A linear or branched saturated alkyl group; wherein the maltodextrin base polymer has a dextrose equivalent DE of 1 to 24; wherein the functionalized maltodextrin has a -Si(R 1 )3 groups; and wherein the functionalized maltodextrin does not contain vinyl carbons.

2. The skin care preparation according to claim 1, further comprising a dermatologically acceptable carrier.

3. The skin care formulation according to claim 2, wherein the dermatologically acceptable carrier is selected from the group consisting of: water; glycols; C 1-10 Straight or branched chain alcohols; ketones; acetates; butyl cellosolve; dimethicone; polydimethylsiloxane; alkanes; alkanoates, dermatologically acceptable hydrophobic ester oils; dicaprylyl carbonate; alkyl benzoate; hemi-squalane; dicaprylyl ether; keto acids and mixtures thereof.

4. The skin care preparation according to claim 3, further comprising a color component.

5. The skin care formulation according to claim 4, wherein the color component is selected from the group consisting of inorganic pigments, organic pigments, aqueous pigment dispersions, and mixtures thereof.

6. The colored cosmetic formulation according to claim 4, wherein the color ingredient is selected from the group consisting of: Ext. D&C Yellow No. 2, Ext. D&C Violet No. 2, FD&C Red No. 4, FD&C Red No. 40, FD&C Yellow No. 5, FD&C Yellow No. 6, FD&C Green No. 3, FD&C Blue No. 1, D&C Yellow No. 7, D&C Yellow No. 8, D&C Yellow No. 10, D&C Yellow No. 11, D&C Violet No. 2, D&C Red No. 6, D&C Red No. 7, D&C Red No. 17, D&C Red No. 21, D&C Red No. 22, D&C Red No. 27, D&C Red No. 28, D&C Red No. 29, D&C Red No. 30, D&C Red No. 31, D&C Red No. 32, D&C Red No. 33, D&C Red No. 34, D&C Red No. 35 D&C Red No. 30, D&C Red No. 31, D&C Red No. 34, D&C Red No. 33, D&C Red No. 36, D&C Green No. 5, D&C Green No. 6, D&C Green No. 8, D&C Blue No. 4, D&C Orange No. 4, D&C Orange No. 5, D&C Orange No. 10, D&C Orange No. 11, D&C Brown No. 1, aluminum powder, carmine, bismuth citrate, bismuth oxychloride, bronze powder, caramel, carmine, beta-carotene, chromium hydroxide green, chromium oxide green, copper chlorophyll, copper powder, dihydroxyacetone, ammonium ferric ferrocyanide, ferric ferrocyanide, guanine, iron oxide, manganese violet, mica, silver, titanium dioxide, ultramarine, zinc oxide, and mixtures thereof.

7. The colored cosmetic formulation according to claim 4, wherein the color component comprises at least one iron oxide.

8. The color cosmetic formulation of claim 7, wherein the dermatologically acceptable carrier comprises isododecane.

9. The color cosmetic preparation according to claim 4, further comprising a sunscreen active substance.

10. The color cosmetic preparation according to claim 4, wherein the pH of the color cosmetic preparation is from 5.5 to 7.5.