Gel-like composition for cosmetics as well as preparation method and application of gel-like composition

Abstract

The invention relates to the technical field of cosmetics, in particular to an emulsion gel-like composition for cosmetics as well as a preparation method and application of the emulsion gel-like composition. According to the emulsion gel composition for the cosmetics, hydrophilic colloid glucomannan and bacterial cellulose are compounded to serve as a gelatinizing agent, the gelatinizing agent is jointly added into an oil-containing cosmetic emulsion, the viscosity of the oil-containing emulsion can be remarkably improved, and a stable emulsion gel system is formed. The gelatinous composition product provided by the invention overcomes the prejudice of the traditional technology, and provides a new thought for the development of emulsified gel cosmetics. The preparation method of the gelatinous composition for cosmetics provided by the invention is simple, and after all the components are mixed in proportion, a high-viscosity gelatinous oil-containing cosmetic emulsion product can be formed and is stable in property.

Description

Technical Field

[0001] The present invention relates to the technical field of cosmetics, and in particular to a gel composition for cosmetics, a preparation method and application thereof. Background Art

[0002] In the field of cosmetics, gelling agents or thickeners are often used to give products unique viscosity or elasticity in order to improve the feel when applied to the skin or prevent dripping.

[0003] The commonly used gelling agent in the water-in-oil emulsion system is a water-based gelling agent of polyacrylic resin, which has the advantages of high thickening efficiency and light feel, but it is not green and environmentally friendly, so it does not conform to the industry trend and faces elimination. Commonly used green or natural polysaccharide gelling agents such as xanthan gum can also thicken, but there is a problem of low thickening efficiency. If a higher amount is added to increase the viscosity, it will cause a sticky feel and unpleasant user experience. Therefore, finding a natural and environmentally friendly method of gelling with high thickening efficiency has become an urgent problem to be solved in this industry.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The present invention provides a gel composition for cosmetics and a preparation method and application thereof. The gel composition for cosmetics uses hydrophilic colloid glucomannan as a gelling agent, is compounded with bacterial cellulose, and is added to an oil-containing cosmetic emulsion to form a stable emulsion gel system.

[0006] Specifically, the technical solution of the present invention is as follows:

[0007] In a first aspect, the present invention provides a gel composition for cosmetics, comprising, by mass percentage, 5%-30% of an oil phase and 70%-95% of an aqueous phase, wherein the components of the aqueous phase include water, bacterial cellulose and glucomannan, and the mass ratio of the bacterial cellulose to the oil phase is 0.02-0.2:5-30; the mass ratio of the glucomannan to the oil phase is 0.1-1:5-30.

[0008] Glucomannan, also known as konjac gum, is a hydrophilic gelling agent and thickener, usually used in oil-free gel systems. Experiments show that when the system contains more oil, the thickening effect of glucomannan is significantly weakened, and it is difficult to form a gel product.

[0009] The present invention uses hydrophilic colloid glucomannan as a gelling agent, compounded with bacterial cellulose, and added together to a cosmetic emulsion containing 5%-30% oil: when the mass ratio of the bacterial cellulose to the oil phase is 0.02-0.2:5-30, and the mass ratio of the glucomannan to the oil phase is 0.1-1:5-30, the viscosity of the oil-containing cosmetic emulsion is significantly improved under the joint action of glucomannan and bacterial cellulose, and a stable gel system can be formed. When glucomannan is replaced with other aqueous gelling agents such as xanthan gum, although bacterial cellulose is also compounded, the viscosity of the product does not change significantly, indicating that not any aqueous gelling agent compounded with bacterial cellulose can obtain a gel-like product of oil-containing cosmetics.

[0010] In the present invention, the mass ratio of the bacterial cellulose to the oil phase is 0.02-0.2:5-30, preferably 0.04-0.12:10-20, and more preferably 0.06-0.08:10-15. The mass ratio of the glucomannan to the oil phase is 0.1-1:5-30, preferably 0.3-0.8:10-20, and more preferably 0.5-0.8:10-15. The gel composition obtained by compounding in the preferred ratio has higher viscosity and better stability, and will not solidify or otherwise affect the appearance.

[0011] Further, in the present invention, the diameter of the bacterial cellulose is preferably 5-200nm, more preferably 40-80nm, more preferably 50nm; the length is preferably 500-100000nm, more preferably 5000-20000nm, more preferably 10000nm. The present invention does not particularly limit the source of the bacterial cellulose, and the bacterial cellulose obtained from conventional commercial channels in this field can be used. In the preferred embodiments and embodiments provided by the present invention, the bacterial cellulose is prepared by the method disclosed in reference to patent application No. 201910801923.X (diameter range is 45-55nm, length range is 8000-12000nm). The above-mentioned preferred specifications and sources of bacterial cellulose compounded with glucomannan are used for the gelation of oil-containing cosmetic emulsions, and the effect is better.

[0012] Furthermore, the cosmetic gel composition of the present invention comprises 5%-30% of an oil phase and 70%-95% of a water phase.

[0013] Preferably, the cosmetic gel composition comprises 5%-15% of an oil phase and 85%-95% of a water phase.

[0014] More preferably, the cosmetic gel composition comprises 8%-12% of an oil phase and 88%-92% of a water phase.

[0015] More preferably, the cosmetic gel composition comprises 10% of an oil phase and 90% of an aqueous phase.

[0016] In the present invention, the components of the water phase preferably further include at least one of polyols, preservatives, skin functional ingredients, emulsifiers, and flavors.

[0017] In the present invention, the polyol can be selected from glycerol, 1,3-butylene glycol, propylene glycol, hexylene glycol, propylene glycol, ethylene glycol, diethylene glycol, dipropylene glycol, diglycerol, sorbitol and other sugars that are liquid at room temperature, and can also be selected from water-soluble alkoxylated nonionic polymers such as polyethylene glycol. Further, in a more specific embodiment of the present invention, the polyol is selected from glycerol, and the mass ratio of the glycerol to the oil phase is preferably 0.5-15:5-30, more preferably 2.5-7.5:5-15, more preferably 4-6:10, and more preferably 5:10. The glycerol added in this ratio can exert a good moisturizing effect.

[0018] In the present invention, the addition of preservatives helps to prevent the product from breeding bacteria. The type and amount of preservatives can be added in appropriate amounts according to the use requirements and in compliance with national cosmetic standards. In the preferred embodiments and examples provided by the present invention, the preservative preferably includes one or more of sodium benzoate, benzoic acid, 1,2-hexanediol, ethylhexylglycerin, and p-hydroxyacetophenone. More preferably, the preservative is sodium benzoate, and its mass proportion in the cosmetic gel composition is preferably 0.4%-0.8%, more preferably 0.6%.

[0019] In the present invention, the skin functional ingredients include but are not limited to viscosity enhancers, gelling agents, bactericides, moisturizers, wetting agents, colorants, touch enhancers, anti-inflammatory agents, whitening agents, antiperspirants, ultraviolet absorbers, etc. The present invention does not particularly limit the source of the skin functional ingredients, and any conventional commercially available products that meet the standards in this field can be used. Furthermore, in a more specific embodiment of the present invention, the functional ingredient can be selected from collagen peptides. The mass proportion of the collagen peptide in the cosmetic gel composition is preferably 0.1%-0.3%, more preferably 0.2%. The preferred amount of collagen peptide added will not adversely affect the gelation and stability of the product while providing skin care active ingredients.

[0020] The present invention does not specifically limit the specific type of the emulsifier, and any commercially available amphoteric emulsifier, anionic emulsifier, cationic emulsifier or nonionic emulsifier may be used. The emulsifier may be used alone or in combination (and may optionally contain an auxiliary emulsifier).

[0021] More specifically, the gel composition of the present invention belongs to an oil-in-water (W / O) emulsion. For O / W emulsions, the emulsifier preferably uses a nonionic emulsifier, such as oxyalkylene (especially polyoxyethylene) esters of fatty acid 25 acid esters and glycerol; oxyalkylene esters of fatty acids and sorbitan; oxyalkylene (oxyethylene and / or oxypropylene) esters of fatty acids; oxyethylene (oxyethylene and / or oxypropylene) ethers of fatty alcohols; sugar esters, such as sucrose stearate; alkyl glycosides, such as glycosides of carbon 8-22; and mixtures thereof, such as a mixture of stearic acid glyceryl and PEG-40 stearate, etc.

[0022] The present invention does not specifically limit the amount of the emulsifier, and any conventional amount in the art can be used. In a more specific embodiment provided by the present invention, the weight of the emulsifier preferably accounts for 0.3%-30% of the total weight of the composition, and more preferably 0.5%-20%.

[0023] More specifically, in the present invention, the emulsifier preferably includes alkyl glycoside and / or potassium stearate, more preferably alkyl glycoside. The mass ratio of the alkyl glycoside to the oil phase is preferably 0.5-15:5-30, more preferably 0.5-1.5:5-15, more preferably 0.5-1.5:10, more preferably 1:10.

[0024] The present invention does not specifically limit the type of the flavor, and any flavor commonly available in the market can be used. The amount of the flavor can be added in appropriate amounts according to the product instructions and actual needs.

[0025] In the preferred solutions and embodiments provided by the present invention, the components of the aqueous phase preferably include glycerol and alkyl glycoside at the same time. Under the above preferred ratio conditions of glycerol and alkyl glycoside, the product obtained has more stable properties.

[0026] In the present invention, the oil phase may be all kinds of cosmetic oils.For example: mono- or di-esters of linear and / or branched mono- and / or di-carboxylic acids having 2 to 44 carbon atoms and saturated or unsaturated linear and / or branched alcohols having 1 to 22 carbon atoms; esters of difunctional aliphatic alcohols having 2 to 36 carbon atoms and monofunctional aliphatic carboxylic acids having 1 to 22 carbon atoms; esters of long-chain aromatic carboxylic acids, such as benzoic acid esters (especially benzoic acid esters of saturated or unsaturated linear or branched alcohols having 1 to 22 carbon atoms), isostearyl benzoate or octyldodecyl benzoate; monoesters, which can be selected from methyl esters of fatty acids having 12 to 22 carbon atoms and isopropyl esters, methyl laurate, methyl stearate, methyl oleate, methyl erucate, Isopropyl palmitate, isopropyl myristate, isopropyl stearate or isopropyl oleate; other monoesters, including n-butyl stearate, n-hexyl laurate, n-decyl oleate, isooctyl stearate, isononyl palmitate, isononyl isononanoate, 2-ethylhexyl palmitate, 2-ethylhexyl laurate, 2-hexyl-decyl stearate, 2-octyldodecyl 2-palmitate, oleyl oleate, oleyl erucate or erucyl oleate; esters obtained from industrial fatty alcohol fractions and industrial aliphatic carboxylic acid mixtures, such as esters of unsaturated fatty alcohols having 12 to 22 carbon atoms and saturated and unsaturated fatty acids having 12 to 22 carbon atoms, or other esters obtained from animal and vegetable oils; naturally occurring monoesters or wax esters mixtures of these compounds, such as monoesters or wax esters present in jojoba oil or spermaceti oil; dicarboxylic acid esters, such as di-n-butyl adipate, di-n-butyl sebacate, di(2-ethyl-hexyl) adipate, di(2-hexyldecyl) succinate or diisotridecyl azelate; glycol esters, such as ethylene glycol dioleate, ethylene glycol diisotridecanoate, propylene glycol di(2-ethylhexanoate), butylene glycol diisostearate and neopentyl glycol dioctanoate; fatty acid esters, such as C12-15-alkylbenzoic acid esters, dicaprylyl carbonate or diethylhexyl carbonate; long-chain triglycerides, i.e. triple esters of glycerol with three acid molecules, at least one of which is a relatively long-chain acid molecule, for example fatty acid triglycerides; natural plant Oils, such as olive oil, sunflower oil, soybean oil, peanut oil, rapeseed oil, almond oil, palm oil, coconut oil, palm shell oil (liquid); animal oils, such as neatsfoot oil, tallow (liquid); synthetic triglycerides of caprylic / capric acid mixtures, industrial triglycerides of oleic acid, triglycerides of isostearic acid or triglycerides of palmitic / oleic acid mixtures; hydrocarbons, in particular liquid paraffins and isoparaffins, such as paraffin oil, isohexadecane, polydecene, petroleum jelly, light liquid paraffin, squalane; linear or branched fatty alcohols, such as oleyl alcohol or octyldodecanol; fatty alcohol ethers, such as dicaprylyl ether; silicone oils and waxes, such as polydimethylsiloxane, cyclomethicone; aryl-, alkyl- or alkoxy-substituted polymethylsiloxane or cyclomethicone, etc.The present invention does not specifically limit the source of the cosmetic oil, and any cosmetic oil commonly used in the art can be used.

[0027] In a more preferred embodiment of the present invention, the components of the oil phase are preferably caprylic capric triglyceride and / or octyl palmitate.

[0028] In a second aspect, the present invention provides a method for preparing the cosmetic gel composition, comprising the following steps:

[0029] S1, mixing water, bacterial cellulose and glucomannan to obtain an aqueous phase;

[0030] S2, mixing the oil phase with the water phase described in step S1 to obtain a gel composition for cosmetics.

[0031] Preferably, the mixing in step S1 or step S2 is preferably carried out by high-pressure homogenization, and the parameters of the high-pressure homogenization are preferably set to 30-50 MPa, 10000-15000 r / min; more preferably 40 MPa, 12000 r / min.

[0032] The preparation method provided by the invention is simple, and after the components are mixed in proportion, a high-viscosity gel-like oil-containing cosmetic product with stable properties can be formed.

[0033] In a third aspect, the present invention also provides a cosmetic.

[0034] In the present invention, the cosmetic contains the gel composition for cosmetics, and corresponding functional ingredients may be further added according to needs.

[0035] The cosmetics of the present invention not only have the oily components required for skin care, but also maintain a good gel state without adding other gelling agents and thickeners, and are safe and environmentally friendly.

[0036] Beneficial effects:

[0037] The present invention provides a gel composition for cosmetics, a preparation method and an application thereof. The gel composition for cosmetics uses hydrophilic colloid glucomannan as a gelling agent, is compounded with bacterial cellulose, and is added to an oil-containing cosmetic emulsion, which can significantly improve the viscosity of the oil-containing emulsion and form a stable gel system. The gel composition product provided by the present invention overcomes the traditional technical prejudice and provides a new idea for the development of gel-type cosmetics.

[0038] The preparation method of the cosmetic gel composition provided by the present invention is simple, and after the components are mixed in proportion, a high-viscosity gel-like oil-containing cosmetic product with stable properties can be formed. DETAILED DESCRIPTION

[0039] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention. Without departing from the spirit and essence of the present invention, modifications or substitutions made to the methods, steps or conditions of the present invention all fall within the scope of protection of the present invention.

[0040] Unless otherwise specified, the experimental materials, reagents, instruments, etc. used in the examples of the present invention are all commercially available; unless otherwise specified, all technical means in the examples of the present invention are conventional means well known to those skilled in the art.

[0041] Example 1

[0042] This embodiment provides a gel composition for cosmetics, and its specific formula is as follows:

[0043] 16 kg of bacterial cellulose solution (concentration 1.0%), 10 kg of glycerol, 0.6 kg of sodium benzoate, 0.2 kg of collagen peptide, 149.6 kg of water, 20 kg of caprylic capric triglyceride, 2 kg of alkyl glycoside, and 1.6 kg of glucomannan.

[0044] This embodiment also provides a method for preparing the above-mentioned cosmetic gel composition, and the specific preparation steps are as follows:

[0045] The formulated amount of bacterial cellulose solution, glycerin, sodium benzoate, collagen peptide, water, alkyl glycoside, and gelling agent (glucomannan) were mixed and homogenized at high pressure (40 MPa, 12000 r / min) for 1 minute; caprylic capric triglyceride was then added, mixed, and homogenized at high pressure (40 MPa, 12000 r / min) for 1 minute to obtain a gel composition for cosmetics.

[0046] Example 2

[0047] This embodiment provides a gel composition for cosmetics, and its specific formula is as follows:

[0048] 16 kg of bacterial cellulose solution (concentration 1.0%), 10 kg of glycerol, 0.6 kg of sodium benzoate, 0.2 kg of collagen peptide, 150.2 kg of water, 20 kg of caprylic capric triglyceride, 2 kg of alkyl glycoside, and 1 kg of glucomannan.

[0049] The preparation method of the cosmetic gel composition described in this embodiment is the same as that in Example 1.

[0050] Example 3

[0051] This embodiment provides a gel composition for cosmetics, and its specific formula is as follows:

[0052] 12 kg of bacterial cellulose solution (concentration 1.0%), 10 kg of glycerol, 0.6 kg of sodium benzoate, 0.2 kg of collagen peptide, 154.2 kg of water, 20 kg of caprylic capric triglyceride, 2 kg of alkyl glycoside, and 1 kg of glucomannan.

[0053] The preparation method of the cosmetic gel composition described in this embodiment is the same as that in Example 1.

[0054] Example 4

[0055] This embodiment provides a gel composition for cosmetics, and its specific formula is as follows:

[0056] 8 kg of bacterial cellulose solution (concentration 1.0%), 10 kg of glycerol, 0.6 kg of sodium benzoate, 0.2 kg of collagen peptide, 158.2 kg of water, 20 kg of caprylic capric triglyceride, 2 kg of alkyl glycoside, and 1 kg of glucomannan.

[0057] The preparation method of the cosmetic gel composition described in this embodiment is the same as that in Example 1.

[0058] Example 5

[0059] This embodiment provides a gel composition for cosmetics, and its specific formula is as follows:

[0060] 4 kg of bacterial cellulose solution (concentration 1.0%), 10 kg of glycerol, 0.6 kg of sodium benzoate, 0.2 kg of collagen peptide, 162.2 kg of water, 20 kg of caprylic capric triglyceride, 2 kg of alkyl glycoside, and 1 kg of glucomannan.

[0061] The preparation method of the cosmetic gel composition described in this embodiment is the same as that in Example 1.

[0062] Example 6

[0063] This embodiment provides a gel composition for cosmetics, and its specific formula is as follows:

[0064] 16 kg of bacterial cellulose solution (concentration 1.0%), 15 kg of glycerol, 0.8 kg of p-hydroxyacetophenone, 0.1 kg of collagen peptide, 155.1 kg of water, 10 kg of caprylic capric triglyceride, 1 kg of alkyl glycoside, and 2 kg of glucomannan.

[0065] The preparation method of the cosmetic gel composition described in this embodiment is the same as that in Example 1.

[0066] Example 7

[0067] This embodiment provides a gel composition for cosmetics, and its specific formula is as follows:

[0068] 20 kg of bacterial cellulose solution (concentration 1.0%), 5 kg of glycerol, 0.4 kg of ethylhexylglycerol, 0.3 kg of collagen peptide, 139.3 kg of water, 30 kg of caprylic capric triglyceride, 3 kg of alkyl glycoside, and 2 kg of glucomannan.

[0069] The preparation method of the cosmetic gel composition described in this embodiment is the same as that in Example 1.

[0070] Example 8

[0071] This embodiment provides a gel composition for cosmetics, and its specific formula is as follows:

[0072] 16 kg of bacterial cellulose solution (concentration 1.0%), 10 kg of glycerol, 0.6 kg of sodium benzoate, 0.2 kg of collagen peptide, 149.2 kg of water, 20 kg of octyl palmitate, 2 kg of alkyl glycoside, and 2 kg of glucomannan.

[0073] The preparation method of the cosmetic gel composition described in this embodiment is the same as that in Example 1.

[0074] Example 9

[0075] This embodiment provides a gel composition for cosmetics, and its specific formula is as follows:

[0076] 16 kg of bacterial cellulose solution (concentration 1.0%), 10 kg of glycerol, 0.6 kg of sodium benzoate, 0.2 kg of collagen peptide, 149.2 kg of water, 20 kg of caprylic capric triglyceride, 2 kg of potassium stearate, and 2 kg of glucomannan.

[0077] The preparation method of the cosmetic gel composition described in this embodiment is the same as that in Example 1.

[0078] Comparative Example 1

[0079] This comparative example provides a cosmetic, the specific formula of which is as follows:

[0080] Glycerin 10kg, sodium benzoate 0.6kg, collagen peptide 0.2kg, water 166.2kg, caprylic capric triglyceride 20kg, alkyl glycoside 2kg, glucomannan 1kg.

[0081] No bacterial cellulose solution was added to the formulation of Comparative Example 1. When the bacterial cellulose solution was omitted, the preparation method was the same as that of Example 1.

[0082] Comparative Example 2

[0083] This comparative example provides a cosmetic, the specific formula of which is as follows:

[0084] Bacterial cellulose solution (concentration 1.0%) 16 kg, glycerol 10 kg, sodium benzoate 0.6 kg, collagen peptide 0.2 kg, water 150.2 kg, caprylic acid capric acid triglyceride 20 kg, alkyl glycoside 2 kg, xanthan gum 1 kg.

[0085] In the formulation of Comparative Example 2, the gelling agent is xanthan gum instead of the glucomannan in Example 1, and the preparation method is the same as that of Example 1.

[0086] Comparative Example 3

[0087] This comparative example provides a cosmetic, the specific formula of which is as follows:

[0088] Glycerin 10kg, sodium benzoate 0.6kg, collagen peptide 0.2kg, water 166.2kg, caprylic capric triglyceride 20kg, alkyl glycoside 2kg, xanthan gum 1kg.

[0089] In the formulation of Comparative Example 3, no bacterial cellulose solution was added, and the gelling agent was selected from xanthan gum to replace the glucomannan in Example 1. In the case where the bacterial cellulose solution was omitted, the preparation method was the same as that in Example 1.

[0090] Comparative Example 4

[0091] This comparative example provides a cosmetic product that does not contain oil, and its formula is as follows:

[0092] 16 kg of bacterial cellulose solution (concentration 1.0%), 183 kg of water, and 1 kg of glucomannan.

[0093] The preparation method of the cosmetic gel composition described in Comparative Example 4 is as follows: the formulated amount of bacterial cellulose solution, water, and gelling agent (glucomannan) are mixed, and high-pressure homogenization (40 MPa, 12000 r / min) is performed for 1 minute.

[0094] Comparative Example 5

[0095] This comparative example provides a cosmetic product that does not contain oil, and its specific formula is as follows:

[0096] 199kg water, 1kg glucomannan.

[0097] Compared with Comparative Example 4, no bacterial cellulose solution was added to the formulation of Comparative Example 5. In the case where the bacterial cellulose solution was omitted, the preparation method was the same as that of Comparative Example 4.

[0098] Experimental Example 1

[0099] This experimental example selected the products prepared in Examples 1-9 and Comparative Examples 1-5, and used a rotor viscometer to perform viscosity testing.

[0100] The experimental results are shown in Table 1.

[0101] Table 1 Viscosity test results

[0102] Group Viscosity 1rpm Viscosity 5rpm Viscosity 10rpm Viscosity 20rpm (25℃) Properties Example 1 93600 55200 36540 22680 No flow emulsion gel Example 2 93000 44760 26520 14790 No flow emulsion gel Example 3 78600 30960 18840 11190 Slightly flowing gel Example 4 46200 23640 13440 7500 Slightly flowing gel Example 5 45600 21960 12240 7380 Slightly flowing gel Example 6 92810 51230 27400 15600 No flow emulsion gel Example 7 94620 56300 37620 25770 No flowing jelly, partial solidification Example 8 93200 49600 27000 15330 No flow emulsion gel Example 9 91600 53200 39080 19900 No flow emulsion gel Comparative Example 1 19200 6600 3600 2190 Mobile emulsion Comparative Example 2 33000 9240 5280 2910 Mobile emulsion Comparative Example 3 27000 7560 4320 2370 Mobile emulsion Comparative Example 4 43800 17880 10500 6330 Flowing liquid Comparative Example 5 57000 23520 11340 6750 Flowing liquid

[0103] Comparative Examples 4 and 5 are both oil-free gel compositions, wherein the viscosity of the product of Comparative Example 5 is greater than that of Comparative Example 4, indicating that the compounding of bacterial cellulose and glucomannan does not increase the viscosity of the product, but rather reduces the viscosity of the gel product using glucomannan alone. Comparative Examples 2 and 3 both use xanthan gum as a gelling agent, wherein in Comparative Example 2, bacterial cellulose is added to the xanthan gum, and the compounding of the two does not significantly increase the viscosity of the product, and a gel state cannot be formed, whereas Comparative Example 1 and Example 2 both use glucomannan as a gelling agent, wherein in Example 2, bacterial cellulose is added to the glucomannan, and the compounding of the two significantly increases the viscosity of the product, and the product can form a gel state.

[0104] Examples 1-9 all use glucomannan as a gelling agent and compound bacterial cellulose, which significantly improves the viscosity of the product and can form a gel system. Among them, the product of Example 1-3 has high viscosity, stable gel state, no solidification, and beautiful appearance.

[0105] Although the present invention has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements may be made thereto based on the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all fall within the scope of protection claimed by the present invention.

Claims

1. A gel composition for cosmetics, characterized in that: In terms of mass percentage, the invention comprises 5%-30% of an oil phase and 70%-95% of an aqueous phase, wherein the components of the aqueous phase include water, bacterial cellulose and glucomannan, and the mass ratio of the bacterial cellulose to the oil phase is 0.02-0.2:5-30; the mass ratio of the glucomannan to the oil phase is 0.1-1:5-30.

2. The cosmetic gel composition according to claim 1, characterized in that: The mass ratio of the bacterial cellulose to the oil phase is 0.04-0.12:10-20; the mass ratio of the glucomannan to the oil phase is 0.3-0.8:10-20; Preferably, the mass ratio of the bacterial cellulose to the oil phase is 0.06-0.08:10-15; the mass ratio of the glucomannan to the oil phase is 0.5-0.8:10-15.

3. The cosmetic gel composition according to claim 1 or 2, characterized in that: The bacterial cellulose has a diameter of 5-200 nm and a length of 500-100000 nm.

4. The cosmetic gel composition according to claim 3, characterized in that: The bacterial cellulose has a diameter of 40-80 nm and a length of 5000-20000 nm.

5. The cosmetic gel composition according to any one of claims 1 to 4, characterized in that: The components of the water phase also include at least one of polyols, preservatives, skin functional ingredients, emulsifiers, and flavors; Preferably, the emulsifier comprises alkyl glycoside and / or potassium stearate.

6. The cosmetic gel composition according to claim 5, characterized in that: The mass ratio of the polyol to the oil phase is 0.5-15:5-30.

7. The cosmetic gel composition according to claim 5 or 6, characterized in that: The mass ratio of the emulsifier to the oil phase is 0.5-5:5-30.

8. The cosmetic gel composition according to any one of claims 1 to 7, characterized in that: The oil phase is octyl palmitate and / or caprylic capric triglyceride.

9. The method for preparing the cosmetic gel composition according to any one of claims 1 to 8, characterized in that: The steps include: S1, mixing water, bacterial cellulose and glucomannan to obtain an aqueous phase; S2, mixing the oil phase with the water phase described in step S1 to obtain a gel composition for cosmetics.

10. A cosmetic, characterized in that The cosmetic comprises the gel composition for cosmetics according to any one of claims 1 to 9.