Soft emulsified composition and application thereof

Abstract

The invention provides a soft emulsified composition and application thereof. The soft emulsified composition comprises a bacillus fermentation product, glycerol, a rehmannia chinensis root extract, xylose and cetostearyl alcohol. According to the soft emulsifying composition, the components are matched for use, so that the soft emulsifying composition shows outstanding emulsifying performance and compatibility to various oil phases, can emulsify various types of grease difficult to emulsify, and has high chemical stability. Compared with a common emulsifying agent, the soft emulsifying composition is friendly to skin micro-ecology, and the moisturizing and soothing effects are assisted and enhanced. After the liquid crystal composition is applied to cosmetics, a liquid crystal structure can be formed, and the liquid crystal composition has good makeup quality, is convenient to use, soft in touch, smooth in appearance and capable of being melted once touching skin and has skin feeling similar to that of cotton.

Description

Technical Field

[0001] This invention belongs to the field of daily cosmetics technology, specifically relating to a soft emulsified composition and its application. Background Technology

[0002] Emulsification is a common synthetic technique in cosmetic formulations, frequently used in lotions, creams, and other cosmetic products. An emulsion system mainly consists of the following components: Oil phase: Contains oils, waxes, esters, etc., providing moisturizing and water-locking effects; common components include plant oils, silicone oils, and fatty alcohols. Aqueous phase: Contains water, humectants, thickeners, etc., providing hydration and moisturizing effects; common components include water, glycerin, and butylene glycol. Emulsifier: Connects the oil and aqueous phases to form a stable emulsion. It is an important component of cosmetic raw materials, playing roles such as emulsification, dispersion, solubilization, lubrication, softening, and stabilization. Common components include Tween, Span, and lecithin.

[0003] The principle of emulsification is that the hydrophilic and lipophilic groups in the emulsifier molecules reduce the interfacial tension between oil and water, allowing the oil and water phases to disperse evenly and form a stable emulsion. Common emulsion systems include water-in-oil emulsions and oil-in-water emulsions. Water-in-oil emulsions are highly moisturizing but have a thick texture, making them suitable for dry skin. In contrast, oil-in-water emulsions have a light texture, are easy to apply, and are refreshing and non-greasy, making them suitable for all skin types and popular with consumers. The emulsion system is the core of the formulation system for creams and lotions, directly affecting the product's texture, stability, and efficacy. Therefore, choosing a suitable emulsifier is an essential and fundamental step in the synthesis of cosmetics.

[0004] However, although cosmetic emulsification technology is becoming more and more mature, there are still some problems. First, some emulsification systems have problems with layering and flocculation. For example, after long-term storage or long-term placement under high and low temperature conditions, the oil phase and water phase may separate, resulting in product layering or flocculation. Second, there is the issue of skin feel. The combination of emulsifiers has a significant impact on skin feel and texture. Some emulsifiers, due to the characteristics of their molecular structure, have a sticky and oily feel, and a rough texture that is not delicate and soft enough. Some emulsion systems have large emulsion particle sizes, which can slow down skin absorption and hinder the absorption of active ingredients. Thirdly, there are issues with ionic resistance; currently available emulsifiers and emulsion systems have poor compatibility with highly ionic raw materials or sunscreens, limiting the use of many ingredients and hindering the expansion and extension of their efficacy. Fourthly, there are safety concerns; the addition of some PEG-based or polyether-based emulsifiers has low biodegradability, which may lead to difficulties in skin metabolism and absorption, and the residue of emulsifiers on the skin can cause skin problems. Additionally, some lotions or creams on the market contain ingredients with safety risks, such as glyceryl stearate, stearic acid, isostearic acid, and cyclopentamethoxysiloxane, to provide a smooth, soft, easily spreadable, and easily absorbed texture. However, the addition of these ingredients may cause skin or eye irritation and is not suitable for infants or people with sensitive skin. In conclusion, there is an urgent need to provide an emulsion product with excellent emulsifying properties and more comprehensive and safer efficacy to meet application needs. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a soft emulsified composition and its application. The composition provided by this invention, through scientific formulation, has excellent emulsifying power, small emulsion particle size, good stability, and a certain degree of ion resistance. It can also assist and enhance moisturizing effects. In addition, the emulsified composition of this invention also has a special sustained-release technology, which can not only slow down the penetration of active ingredients but also ensure the effective exertion of active ingredients.

[0006] To achieve this objective, the present invention employs the following technical solution:

[0007] In a first aspect, the present invention provides a soft emulsifying composition comprising Bacillus fermentation product, glycerol, Rehmannia glutinosa root extract, xylose, and cetearyl alcohol.

[0008] In the composition of this invention, xylose and cetearyl alcohol, when combined, possess amphiphilic and lipophilic groups, and are rich in alkyl polypentosides. The hydrophilic portion of xylose is obtained from hydrolyzed wood, while the lipophilic portion of cetearyl alcohol is obtained from palm oil and rapeseed oil. Bacillus fermentation products are a class of fermentation-derived small-molecule polysaccharides with both hydrophilic and lipophilic groups, enabling the formation of smaller emulsion particle sizes and resulting in more stable emulsions. Rehmannia glutinosa root extract is a polysaccharide composed of multiple monosaccharides. On one hand, due to the structural similarity between polysaccharides and xylose, they are tightly bound together, ensuring the stability of the emulsion composition. On the other hand, polysaccharides can form a network framework in the emulsion system through intermolecular forces. The hydroxyl groups and carbon-carbon double bonds within this framework can interact with groups in oils, thereby strengthening the network framework's ability to bind oils and enhancing the stability of the emulsion system. Unlike ordinary emulsifiers, the soft emulsion composition of this invention is composed of all naturally derived components, is mild, safe, non-toxic, non-irritating to the skin, and is completely and easily biodegradable. Regarding emulsification performance, the soft emulsifying composition of this invention can emulsify high-content oils, exhibits good compatibility with various oils, and demonstrates significantly superior emulsification performance compared to traditional alkyl polyglucosides. Even at low addition levels, it can still form a stable emulsion system. In terms of ionic resistance, the soft emulsifying composition of this invention possesses electrolyte compatibility, making it applicable to salt-containing formulations. It also exhibits good compatibility with some ionic active ingredients, such as hyaluronic acid. Due to the formation of the polysaccharide network framework, the system displays better stability. Regarding the microecology, the soft emulsifying composition of this invention has minimal instantaneous disturbance and cumulative impact on the activity of the skin microbiota. Even after discontinuation of use, the microbiota retains its recovery ability, indicating that the soft emulsifying composition of this invention is safe and friendly to the skin microbiota, and may even improve or restore healthy flora. In terms of efficacy, the presence of the two polysaccharide structures can increase the protein expression of AQP3 in human epidermal keratinocytes, promote the proliferation and migration of human skin fibroblasts, protect and repair the skin, and assist in providing the system's moisturizing, repairing, and soothing effects. When applied to cosmetics, it has excellent cosmetic properties, is easy to use, has a soft touch, a smooth appearance, melts upon contact with the skin, and has a cotton-like feel.

[0009] In addition, the soft emulsified composition of the present invention can form skin moisturizing molecules with liquid crystal structure at the O / W interface, which can limit transdermal water loss and prevent epidermal dehydration, thereby having a moisturizing effect. Therefore, it has a good moisturizing and nourishing effect and can help improve the moisturizing and nourishing effect of the formulation system.

[0010] Preferably, the soft emulsifying composition comprises, by weight, 1-10 parts of Bacillus fermentation product, 20-40 parts of glycerol, 1-5 parts of Rehmannia glutinosa root extract, 20-40 parts of xylose, and 30-50 parts of cetearyl alcohol;

[0011] The Bacillus fermentation product in the soft emulsified composition of the present invention can be 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, or 9 parts, etc.

[0012] The amount of glycerin added can be 22 parts, 25 parts, 28 parts, 30 parts, 32 parts, 35 parts, 38 parts, or 40 parts, etc.

[0013] The Chinese Rehmannia root extract may be in the form of 1 part, 2 parts, 3 parts, 4 parts, or 5 parts, etc.

[0014] The amount of xylose added can be 22 parts, 25 parts, 28 parts, 30 parts, 32 parts, 35 parts, 38 parts, or 40 parts, etc.

[0015] The amount of cetearyl alcohol added can be 32 parts, 35 parts, 38 parts, 40 parts, 42 parts, 45 parts, 48 ​​parts, or 50 parts, etc.

[0016] Preferably, the mass ratio of the Bacillus fermentation product, glycerol, Rehmannia glutinosa root extract, xylose, and cetearyl alcohol is 2:8:1:(4-20):(6-30). For example, it can be 2:8:1:6:10, 2:8:1:8:12, 2:8:1:10:14, 2:8:1:12:14, 2:8:1:14:18, 2:8:1:16:20, 2:8:1:16:24, or 2:8:1:18:28, etc.

[0017] All the specific point values ​​within the above range can be selected, and will not be elaborated on here.

[0018] Secondly, the present invention provides a method for preparing a soft emulsified composition as described in the first aspect, the method comprising: mixing Bacillus fermentation product, Rehmannia glutinosa root extract and glycerin evenly; homogenizing cetearyl alcohol and xylose at 75-90°C; then adding the mixture of Bacillus fermentation product, Rehmannia glutinosa root extract and glycerin, mixing evenly, and then cooling.

[0019] Thirdly, the present invention provides the use of the soft emulsified composition as described in the first aspect in the preparation of cosmetics;

[0020] The cosmetics include any one of the following: serum, gel, cream, or lotion.

[0021] Preferably, the soft emulsified composition has a cosmetic mass percentage of 1-10%, for example, 2%, 3%, 4%, 5%, 6%, 7%, 8%, or 9%.

[0022] All the specific point values ​​within the above range can be selected, and will not be elaborated on here.

[0023] Fourthly, the present invention provides a moisturizing and soft-textured face cream, wherein the components of the moisturizing and soft-textured face cream, by weight, include 1-10 parts of the soft emulsified composition as described in the first aspect, 10-30 parts of emollient, 1-10 parts of polyol, 0.1-2 parts of thickener, 0.1-1 parts of antioxidant and 45-90 parts of deionized water.

[0024] This invention relates to a face cream with a liquid crystal structure, prepared by adding a soft emulsifying composition. Structurally, the liquid crystal structure exhibits high order, with alternating lipid bilayers and aqueous layers forming a three-dimensional network. In terms of stability, the viscoelasticity and high interfacial capacity of the liquid crystal structure reduce oil droplet aggregation or precipitation, preventing layering or emulsion breakdown. Furthermore, the layered structure of the liquid crystal can encapsulate active ingredients, isolating them from oxygen and photodegradation, delaying oxidation, and preventing discoloration and precipitation. Therefore, the face cream with the liquid crystal structure has better stability. In terms of efficacy, the layered structure of the liquid crystal is similar to the lipids of the stratum corneum (the principle of like compatibility), promoting transdermal absorption of active ingredients by disrupting the orderliness of the stratum corneum lipids. The cubic liquid crystal phase can form "nanochannels," enabling sustained-release technology, effectively protecting active ingredients and continuously releasing them, slowing down the diffusion rate and duration of action of active ingredients, thereby further promoting absorption and enhancing their efficacy. The strong interlayer water-binding capacity of the liquid crystal effectively improves long-lasting moisturizing effects. Efficacy tests show that the face cream with the liquid crystal structure of this invention has more significant immediate and long-lasting moisturizing effects.

[0025] The amount of the soft emulsifying composition added to the face cream of the present invention can be 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, or 9 parts, etc.

[0026] The amount of the emollient added can be 11 parts, 13 parts, 15 parts, 18 parts, 20 parts, 22 parts, 25 parts, 27 parts, or 29 parts, etc.

[0027] The amount of polyol added can be 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, or 9 parts, etc.

[0028] The amount of the thickener added can be 0.2 parts, 0.3 parts, 0.4 parts, 0.5 parts, 0.6 parts, 0.7 parts, 0.8 parts, 0.9 parts, 1 part, 1.1 parts, 1.2 parts, 1.3 parts, 1.4 parts, 1.5 parts, 1.6 parts, 1.7 parts, 1.8 parts, or 1.9 parts, etc.

[0029] The amount of antioxidant added can be 0.2 parts, 0.3 parts, 0.4 parts, 0.5 parts, 0.6 parts, 0.7 parts, 0.8 parts, or 0.9 parts, etc.

[0030] The amount of deionized water added can be 50 parts, 55 parts, 60 parts, 65 parts, 70 parts, 75 parts, 80 parts, or 85 parts, etc.

[0031] Preferably, the emollient comprises any one or a combination of at least two of the following: polydimethylsiloxane, phenylisopropylpolydimethylsiloxane, isononyl isononate, pentaerythritol tetra(ethylhexanoate), dimeric pentaerythritol hexahydroxystearate / hexastearate / hexapineate, phytosterol oleate, phytosterols, C13-14 isoparaffins, lauryl ether-7, cetyl alcohol, beeswax, microcrystalline wax, synthetic wax, candelilla wax, caprylic / capric triglyceride, hydrogenated coconut oil glycerides, squalane, camellia seed oil, argana sinosa kernel oil, or ceramide NP.

[0032] Preferably, the emollient is a combination of polydimethylsiloxane, dipolypentaerythritol hexahydroxystearate / hexastearate / hexapine ester, caprylic / capric triglyceride, hydrogenated coconut oil glycerides, and squalane.

[0033] Preferably, the mass ratio of polydimethylsiloxane, dipolypentaerythritol hexahydroxystearate / hexastearate / hexapine ester, caprylic / capric triglyceride, hydrogenated coconut oil glycerides and squalane is (5-15):(1-4):(1-2):(1-5):(1-5).

[0034] "5-15" can be 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 or 15, etc.

[0035] “1-4” can be 1.1, 1.3, 1.5, 1.7, 1.9, 2, 2.1, 2.3, 2.5, 2.7 or 2.9, etc.

[0036] “1-2” can be 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8 or 1.9, etc.

[0037] “1-5” can be 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5 or 5, etc.

[0038] Preferably, the polyol comprises any one or a combination of at least two of glycerol, butylene glycol, 1,3-propanediol, isopentylene glycol, ethylhexylglycerol, 1,2-pentanediol, or octylglycol.

[0039] Preferably, the polyol is a combination of glycerol, 1,2-hexanediol, 1,2-pentanediol, octyl glycol and butylene glycol.

[0040] Preferably, the thickener is a combination of xanthan gum and polyacrylamide.

[0041] Preferably, the mass ratio of xanthan gum to polyacrylamide is 1:(2-10), for example, it can be 1:3, 1:5, 1:5, 1:6, 1:7, 1:8 or 1:9, etc.

[0042] Preferably, the antioxidant includes any one or a combination of at least two of p-hydroxyacetophenone, raspberry ketone, or capryloyl hydroxamic acid.

[0043] Preferably, the face cream also includes 0.1-5 parts of skin conditioning agent by weight, for example, 0.2 parts, 0.5 parts, 0.8 parts, 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts or 4.5 parts, etc.

[0044] Preferably, the skin conditioning agent comprises any one or a combination of at least two of the following: β-glucan, extracts of Scutellaria alpina flower / leaf / stem, algal oligosaccharides, glyceryl glucoside, tetrahydromethylpyrimidine carboxylic acid, saccharide isomers, extract of rambutan peel, extract of Camellia japonica flower, extract of alfalfa (Medicago sativa), extract of Haematopois pulvinarius, extract of Nelumbo nucifera flower, extract of Calendula officinalis flower, aluminum octenyl succinate, hyaluronic acid, or sodium hyaluronate.

[0045] Preferably, the skin conditioning agent is a combination of Scutellaria baicalensis flower / leaf / stem extract, algal oligosaccharides, glyceryl glucoside, camellia flower extract and hyaluronic acid.

[0046] All the specific point values ​​within the above range can be selected, and will not be elaborated on here.

[0047] Fifthly, the present invention provides a method for preparing a moisturizing and soft-textured face cream as described in the fourth aspect, the method comprising:

[0048] (1) Heat deionized water, then add polyol, thickener and antioxidant, mix and homogenize to obtain an aqueous phase liquid;

[0049] The soft emulsion composition and emollient are heated and then mixed and homogenized to obtain an oil phase liquid;

[0050] (2) Mix the oil phase liquid and the aqueous phase liquid, and homogenize to obtain the moisturizing and soft-textured face cream.

[0051] Preferably, the deionized water in step (1) is heated to 80-90°C, for example, to 81°C, 83°C, 85°C, 87°C or 89°C.

[0052] In step (1), the oil phase liquid is prepared by heating to 80-90℃, for example, 81℃, 83℃, 85℃, 87℃ or 89℃.

[0053] After mixing in step (2), the mixture is cooled down and then a skin conditioning agent is added.

[0054] The temperature is reduced to 40-50℃, for example, 41℃, 43℃, 45℃, 47℃ or 49℃, etc.

[0055] All the specific point values ​​within the above range can be selected, and will not be elaborated on here.

[0056] Compared with the prior art, the present invention has the following beneficial effects:

[0057] (1) The soft emulsifying composition of the present invention is used in combination with specific components. The soft emulsifying composition of the present invention is safe and mild, and is completely and easily biodegradable. The soft emulsifying composition of the present invention has good emulsifying properties, can emulsify high-content oils, and has good compatibility with various oils. Even at low addition levels, it can still form a stable emulsion system. The soft emulsifying composition of the present invention has electrolyte compatibility and good compatibility with some ionic active ingredients, and can be applied to various formulations. The soft emulsifying composition of the present invention is safe and friendly to the skin microbiome and has the ability to regulate the microecological balance. When applied to cosmetics, it can form a liquid crystal structure, has good cosmetic quality, is easy to use, has a soft touch, a smooth appearance, melts upon contact with the skin, and has a cotton-like feel.

[0058] (2) The face cream of the present invention has a soft and moisturizing skin feel by adding a soft emulsifying composition. It is not only convenient to use, but also has a soft touch, smooth appearance, and melts upon contact with the skin, with a cotton-like feel. The face cream of the present invention has moisturizing, repairing, and soothing effects. Attached Figure Description

[0059] Figure 1 This is a liquid crystal structure diagram of the face cream of the present invention as shown under a polarizing microscope. Detailed Implementation

[0060] The technical solution of the present invention will be further illustrated below through specific embodiments. Those skilled in the art should understand that the embodiments described are merely illustrative of the present invention and should not be construed as limiting the invention in any way.

[0061] The sources of some of the raw materials used in the embodiments or comparative examples of this invention are shown in Table 1 below:

[0062] Table 1

[0063]

[0064] The extracts of Scutellaria baicalensis flowers / leaves / stems or Camellia japonica flowers used in the embodiments and comparative examples of this invention can be extracted using conventional water extraction or alcohol extraction methods.

[0065] An exemplary method for extracting camellia flower extract includes:

[0066] Camellia flowers are dried, pulverized, and then subjected to high-efficiency reflux extraction, multi-stage separation and purification, and concentration and enrichment to obtain the final product.

[0067] The extraction method for the extracts of Scutellaria baicalensis flowers / leaves / stems can be carried out in accordance with the above method.

[0068] All other raw materials can be used as long as they are purchased from authorized distributors.

[0069] Examples 1-3

[0070] The embodiments provide three soft emulsion compositions, the components of which are described in Table 2.

[0071] Table 2

[0072]

[0073] The preparation method of the emulsified composition described in Example 1 is as follows:

[0074] Bacillus fermentation product, Chinese rehmannia root extract, and glycerin are mixed evenly. Cetearyl alcohol and xylose are homogenized and mixed evenly at 75-90℃, then the mixture of Bacillus fermentation product, Chinese rehmannia root extract, and glycerin is added, mixed evenly, and then cooled.

[0075] The preparation methods of the emulsified compositions in Examples 2-3 are the same as those in Example 1.

[0076] Application Example 1

[0077] This application example provides a moisturizing and soft-textured face cream, which is composed of the following: 25 parts emollient, 5 parts of the soft emulsified composition of Example 1, 3.5 parts skin conditioner, 0.8 parts thickener, 5 parts polyol, 0.5 parts p-hydroxyacetophenone, and the balance is made up to 100 parts by water.

[0078] The emollient is polydimethylsiloxane, dipolypentaerythritol hexahydroxystearate / hexastearate / hexapine ester, caprylic / capric triglyceride, hydrogenated coconut oil glycerides and squalane in a mass ratio of 13:4:2:4:2.

[0079] The skin conditioning agent is composed of Scutellaria baicalensis flower / leaf / stem extract, algal oligosaccharides, glyceryl glucoside, camellia flower extract and hyaluronic acid in a mass ratio of 0.1:3:2:5:1;

[0080] The thickener is xanthan gum and polyacrylamide in a mass ratio of 1:5;

[0081] The polyol is glycerol, 1,2-hexanediol, 1,2-pentanediol and octyl glycol in a mass ratio of 5:1:0.02:0.05.

[0082] The method for preparing the moisturizing and soft-textured face cream is as follows:

[0083] (1) Add water to the emulsification pot, heat to 85°C, then add polyol, thickener and p-hydroxyacetophenone, stir and homogenize to obtain an aqueous phase liquid;

[0084] (2) The soft emulsion composition and emollient are stirred evenly at 85°C to obtain an oil phase liquid;

[0085] (3) Add the oil phase liquid to the emulsification pot, homogenize it, cool it down to 45°C, add the skin conditioning agent, and stir evenly to obtain the moisturizing and soft face cream.

[0086] Application Example 2

[0087] This application example provides a moisturizing and soft-textured face cream, which is composed of the following: 20 parts emollient, 4 parts of the soft emulsified composition of Example 2, 3 parts skin conditioner, 1.5 parts thickener, 3 parts polyol, 0.8 parts p-hydroxyacetophenone, and the balance is made up to 100 parts by water.

[0088] The emollient is polydimethylsiloxane, dipolypentaerythritol hexahydroxystearate / hexastearate / hexapine ester, caprylic / capric triglyceride, hydrogenated coconut oil glycerides and squalane in a mass ratio of 5:3:1:5:2:4;

[0089] The skin conditioning agent is composed of extracts of Scutellaria baicalensis flower / leaf / stem, algal oligosaccharides, glyceryl glucoside, camellia flower extract and hyaluronic acid in a mass ratio of 0.5:2:3:4:1.5.

[0090] The thickener is xanthan gum and polyacrylamide in a mass ratio of 1:3;

[0091] The polyol is glycerol and butanediol in a mass ratio of 1:1.

[0092] The preparation method of the moisturizing and soft-textured face cream is as follows:

[0093] (1) Add water to the emulsification pot, heat to 80°C, then add polyol, thickener and p-hydroxyacetophenone, stir and homogenize to obtain an aqueous phase liquid;

[0094] (2) The soft emulsion composition and emollient are stirred evenly at 90°C to obtain an oil phase liquid;

[0095] (3) Add the oil phase liquid to the emulsification pot, homogenize it, cool it down to 40°C, add the skin conditioning agent, and stir evenly to obtain the moisturizing and soft face cream.

[0096] Application Example 3

[0097] This application example provides a moisturizing and soft-textured face cream, which is composed of the following: 28 parts emollient, 8 parts of the soft emulsified composition of Example 3, 4 parts skin conditioning agent, 1.8 parts thickener, 6 parts polyol, 0.4 parts p-hydroxyacetophenone, and the balance is made up to 100 parts by water.

[0098] The emollient is polydimethylsiloxane, dipolypentaerythritol hexahydroxystearate / hexastearate / hexapine ester, caprylic / capric triglyceride, hydrogenated coconut oil glycerides and squalane in a mass ratio of 7:3:1:2:2.

[0099] The skin conditioning agent is an extract of Scutellaria baicalensis flower / leaf / stem, algal oligosaccharides, glyceryl glucoside, camellia flower extract and hyaluronic acid in a mass ratio of 0.6:4:1:6:2.

[0100] The thickener is xanthan gum and polyacrylamide in a mass ratio of 1:6;

[0101] The polyol is glycerol, butylene glycol and caprylyl glycol in a mass ratio of 1:3:1.

[0102] The preparation method of the moisturizing and soft-textured face cream is as follows:

[0103] (1) Add water to the emulsification pot, heat to 90°C, then add polyol, thickener and p-hydroxyacetophenone, stir and homogenize to obtain an aqueous phase liquid;

[0104] (2) The soft emulsion composition and emollient are stirred evenly at 80°C to obtain an oil phase liquid;

[0105] (3) Add the oil phase liquid to the emulsification pot, homogenize it, cool it down to 50°C, add the skin conditioning agent, and stir evenly to obtain the moisturizing and soft face cream.

[0106] Application Example 4

[0107] This application example provides a moisturizing and soft-textured face cream, which differs from Application Example 1 only in that the emollient does not include polydimethylsiloxane. The reduced amount is allocated to the remaining emollient in proportion to the parts. The remaining components and the amount added are the same as in Application Example 1, and the preparation method is the same as in Application Example 1.

[0108] Application Example 5

[0109] This application example provides a moisturizing and soft-textured face cream, which differs from Application Example 1 only in that the emollient does not include dimeric pentaerythritol hexahydroxystearate / hexastearate / hexapineate. The reduced amount is allocated to the remaining emollient in proportion to the parts. The remaining components and the amount added are the same as in Application Example 1, and the preparation method is the same as in Application Example 1.

[0110] Application Example 6

[0111] This application example provides a moisturizing and soft-textured face cream, which differs from Application Example 1 only in that the emollient does not include caprylic / capric triglyceride. The reduced amount is allocated to the remaining emollient in proportion to the parts. The remaining components and the amount added are the same as in Application Example 1, and the preparation method is the same as in Application Example 1.

[0112] Application Example 7

[0113] This application example provides a moisturizing and soft-textured face cream, which differs from Application Example 1 only in that the emollient does not include hydrogenated coconut oil glycerides. The reduced amount is allocated to the remaining emollients in proportion to the parts. The remaining components and amounts are the same as in Application Example 1, and the preparation method is the same as in Application Example 1.

[0114] Application Example 8

[0115] This application example provides a moisturizing and soft-textured face cream, which differs from Application Example 1 only in that the emollient does not include squalane. The reduced amount is allocated to the remaining emollient in proportion to the parts. The remaining components and the amount added are the same as in Application Example 1, and the preparation method is the same as in Application Example 1.

[0116] Application Example 9

[0117] This application example provides a moisturizing and soft-textured face cream, which differs from Application Example 1 only in that the face cream does not include a skin conditioning agent, the reduction of which is made up by water. The remaining components and amounts are the same as in Application Example 1, and the preparation method is the same as in Application Example 1.

[0118] Application Example 10

[0119] This application example provides a moisturizing and soft-textured face cream, which differs from Application Example 1 only in that the skin conditioning agent does not include the extract of Scutellaria baicalensis flower / leaf / stem. The reduced amount is allocated to the oligosaccharides, glyceryl glucoside, camellia extract and hyaluronic acid in proportion to the amount of each component. The remaining components and amounts are the same as in Application Example 1, and the preparation method is the same as in Application Example 1.

[0120] Application Example 11

[0121] This application example provides a moisturizing and soft-textured face cream, which differs from Application Example 1 only in that the skin conditioning agent does not include algae oligosaccharides. The reduced amount is allocated in proportion to the extracts of Scutellaria baicalensis flowers / leaves / stems, glyceryl glucoside, Camellia japonica extract and hyaluronic acid. The remaining components and their amounts are the same as in Application Example 1, and the preparation method is the same as in Application Example 1.

[0122] Application Example 12

[0123] This application example provides a moisturizing and soft-textured face cream, which differs from Application Example 1 only in that the skin conditioning agent does not include glyceryl glucoside. The reduced amount is allocated in proportion to the extracts of Scutellaria baicalensis flowers / leaves / stems, algal oligosaccharides, Camellia japonica extract and hyaluronic acid. The remaining components and amounts are the same as in Application Example 1, and the preparation method is the same as in Application Example 1.

[0124] Application Example 13

[0125] This application example provides a moisturizing and soft-textured face cream, which differs from Application Example 1 only in that the skin conditioning agent does not include camellia extract. The reduced amount is allocated to Scutellaria baicalensis flower / leaf / stem extract, algal oligosaccharides, glyceryl glucoside and hyaluronic acid in proportion. The remaining components and their amounts are the same as in Application Example 1, and the preparation method is the same as in Application Example 1.

[0126] Application Example 14

[0127] This application example provides a moisturizing and soft-textured face cream, which differs from Application Example 1 only in that the skin conditioning agent does not include hyaluronic acid. The reduced amount is allocated in parts to Scutellaria baicalensis flower / leaf / stem extract, algal oligosaccharides, glyceryl glucoside and Camellia extract. The remaining components and amounts are the same as in Application Example 1, and the preparation method is the same as in Application Example 1.

[0128] Comparative Application Example 1

[0129] This comparative application example provides five moisturizing and soft-textured face creams. The only difference between these and Application Example 1 is that the soft emulsifying composition provided in Example 1 is not added. The other components and amounts added are the same as in Application Example 1, and the preparation method is the same as in Application Example 1.

[0130] Test Example 1, Stability Evaluation

[0131] Test conditions: Samples from Application Examples 1-14 and Comparative Application Example 1 were stored at -16℃, 25℃, and 45℃ for 3 months, respectively. The appearance of the materials after 3 months under each condition was observed, and the results are recorded in Table 3 below.

[0132] Table 3

[0133]

[0134] As shown in Table 3, the face cream prepared with the soft emulsifying composition has good stability, while the formulation without the soft emulsifying composition results in a layered liquid that cannot form a soft and moisturizing face cream.

[0135] As can be seen from Application Examples 4-5 and 7, the ratio of the emollients affects the state and stability of the face cream.

[0136] Test Example 2: User Trial Evaluation Test

[0137] Subjects: Seventy volunteers with sensitive skin, aged 18 to 35, were randomly divided into 14 groups of 5 people each. Each group of volunteers tried application examples 1-14.

[0138] Test Method: After washing their faces and allowing them to air dry, volunteers took an appropriate amount of the test product on their hands and massaged it into their faces in circular motions until fully absorbed. They used the product twice daily for 28 consecutive days. Follow-up was conducted using a questionnaire. Volunteers rated the product on four aspects: skin softness (the softness of the skin after using the sample), moisturizing effect, gentleness, and soothing effect, using a 5-point scale (5 being the best and 1 being the worst). Volunteers could choose any value between 1 and 5. The average value was taken, and the results are shown in Table 4.

[0139] Table 4

[0140]

[0141] As shown in Table 4, the face cream prepared using the soft emulsified composition of the present invention has an excellent soft feel.

[0142] In addition, skin conditioning agents have a significant impact on efficacy. Scutellaria baicalensis flower / leaf / stem extract, algal oligosaccharides, and hyaluronic acid have a significant impact on gentleness and soothingness, while algal oligosaccharides, glyceryl glucoside, camellia flower extract, and hyaluronic acid have a significant impact on moisturizing effect.

[0143] Test Example 3: Safety Evaluation Experiment

[0144] The specific method was as follows: Forty women aged 18-35 years with no history of allergies were selected. Each subject used samples prepared according to Examples 1-14. After cleaning the subject's back, the patch applicator containing the sample was applied to the selected location on the back using non-irritating adhesive tape. After application, the patch was gently pressed with the fingers to ensure even application to the skin, and left for 48 hours. During these 48 hours, the subject kept the patch area dry and avoided strenuous exercise, scratching, and prolonged sun exposure. After 48 hours, the applicator was removed and marked. After 30 minutes, once the pressure marks disappeared, the subjects were assessed under sufficient light.

[0145] The grading criteria for adverse skin reactions are shown in Table 5:

[0146] Table 5

[0147]

[0148] The results are shown in Table 6:

[0149] Table 6

[0150]

[0151] As shown in Table 6, no adverse skin reactions were observed in any of the volunteers after the spot tester was removed. This indicates that the raw materials used in the essence of this invention are safe and non-irritating, have no adverse reactions on the human body, and are highly safe.

[0152] Test Example 4: Moisturizing, Soothing, and Repairing Efficacy Test

[0153] (1) Test substance: The sample of Example 1;

[0154] (2) Subjects: 30 volunteers aged 18 to 60 were selected.

[0155] (3) Testing methods: A pre- and post-test control was adopted. After 30 people used the sample continuously, the moisturizing effect of the sample was evaluated by statistically analyzing the initial value before use, and the skin stratum corneum moisture content values ​​after 5 minutes, 48 ​​hours, and 72 hours of sample use. A pre- and post-test control was adopted. After 30 people used the sample continuously, the repairing effect of the sample was evaluated by statistically analyzing the initial value before use, and the skin color a value and skin erythema index (EI) value after 5 minutes of sample use. A pre- and post-test control was adopted. After 30 people used the sample continuously, the soothing effect of the sample was evaluated by statistically analyzing the initial value before use, the skin color a value after 5 minutes of sample use, and the skin erythema index (EI) value.

[0156] The results of the skin stratum corneum moisture content test are shown in Table 7.

[0157] Table 7

[0158]

[0159] Note: Significance rating method: P≥0.05 indicates no statistical difference ("ns"); 0.01≤P≤0.05 indicates a significant difference ("*"); 0.001≤P≤0.01 indicates a significant difference ("**"); P≤0.001 indicates a significant difference ("***").

[0160] As shown in Table 7, the soft moisturizing face cream prepared using the soft emulsified composition of the present invention significantly increased the stratum corneum moisture content of the subjects' skin after 5 minutes, 48 ​​hours, and 72 hours of use, compared with before use, with improvement rates of 33.19%, 16.36%, and 19.01%, respectively.

[0161] The results of the transepidermal water loss (TWEL) value test are shown in Table 8.

[0162] Table 8

[0163]

[0164] Note: Significance rating method: P≥0.05 indicates no statistical difference ("ns"); 0.01≤P≤0.05 indicates a significant difference ("*"); 0.001≤P≤0.01 indicates a significant difference ("**"); P≤0.001 indicates a significant difference ("***").

[0165] As shown in Table 8, the soft moisturizing face cream prepared using the soft emulsified composition of the present invention significantly reduced the transepidermal water loss (TWEL) values ​​of the subjects' skin at 5 minutes and 72 hours after use, compared with the values ​​before use, with downregulation rates of 13.67% and 8.88%, respectively.

[0166] The results of skin color a* value testing are shown in Table 9.

[0167] Table 9

[0168]

[0169] Note: Significance rating method: P≥0.05 indicates no statistical difference ("ns"); 0.01≤P≤0.05 indicates a significant difference ("*"); 0.001≤P≤0.01 indicates a significant difference ("**"); P≤0.001 indicates a significant difference ("***").

[0170] As shown in Table 9, the soft moisturizing face cream prepared using the soft emulsified composition of the present invention significantly reduced the skin color of the subjects after 5 minutes of use compared with before use, with a downregulation rate of 9.12%.

[0171] The results of the Erythema Index (EI) test are shown in Table 10.

[0172] Table 10

[0173]

[0174] Note: Significance rating method: P≥0.05 indicates no statistical difference ("ns"); 0.01≤P≤0.05 indicates a significant difference ("*"); 0.001≤P≤0.01 indicates a significant difference ("**"); P≤0.001 indicates a significant difference ("***").

[0175] As shown in Table 10, the soft moisturizing face cream prepared using the soft emulsified composition of the present invention significantly reduced the EI value of the subjects' skin erythema index 5 minutes after use, compared with the value before use, with a downregulation rate of 7.68%.

[0176] In summary, the soft moisturizing face cream prepared using the soft emulsified composition of the present invention has moisturizing, repairing, and soothing effects, and has significant effects in both short-term and long-term use.

[0177] The applicant declares that the present invention is illustrated by the above embodiments to provide a soft emulsified composition and its application, but the present invention is not limited to the above embodiments, that is, it does not mean that the present invention must rely on the above embodiments to be implemented. Those skilled in the art should understand that any improvements to the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present invention.

[0178] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0179] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

Claims

1. A soft emulsified composition, characterized in that, The soft emulsified composition includes Bacillus fermentation product, glycerin, Rehmannia glutinosa root extract, xylose, and cetearyl alcohol.

2. The soft emulsified composition as claimed in claim 1, characterized in that, The soft emulsified composition comprises, by weight, 1-10 parts of Bacillus fermentation product, 20-40 parts of glycerin, 1-5 parts of Rehmannia glutinosa root extract, 20-40 parts of xylose and 30-50 parts of cetearyl alcohol. The mass ratio of the Bacillus fermentation product, glycerol, Rehmannia glutinosa root extract, xylose and cetearyl alcohol is 2:8:1:(4-20):(6-30).

3. A method for preparing a soft emulsified composition as described in claim 1 or 2, characterized in that, The preparation method includes: mixing Bacillus fermentation product, Rehmannia glutinosa root extract, and glycerin evenly. Cetearyl alcohol and xylose are homogenized and mixed evenly at 75-90℃, then the mixture of Bacillus fermentation product, Rehmannia glutinosa root extract, and glycerin is added, mixed evenly, and then cooled.

4. The use of a soft emulsified composition as described in claim 1 or 2 in the preparation of cosmetics; The cosmetics include any one of the following: serum, gel, cream, or lotion.

5. The application as described in claim 4, characterized in that, The soft emulsified composition is present in the cosmetic at a mass percentage of 1-10%.

6. A moisturizing and soft-textured face cream, characterized in that, The moisturizing and soft-textured face cream comprises, by weight, 1-10 parts of the soft emulsified composition as described in claim 1 or 2, 10-30 parts of emollient, 1-10 parts of polyol, 0.1-2 parts of thickener, 0.1-1 parts of antioxidant, and 45-90 parts of deionized water.

7. The moisturizing and soft-textured face cream as described in claim 6, characterized in that, The emollient is a combination of polydimethylsiloxane, dimeric pentaerythritol hexahydroxystearate / hexastearate / hexapine ester, caprylic / capric triglyceride, hydrogenated coconut oil glycerides and squalane; The polyols include any one or a combination of at least two of the following: glycerol, butylene glycol, 1,3-propanediol, isopentylene glycol, ethylhexylglycerol, 1,2-pentanediol, or octyl glycol. The thickener is a combination of xanthan gum and polyacrylamide; The antioxidants include any one or a combination of at least two of p-hydroxyacetophenone, raspberry ketone, or capryloyl hydroxamic acid.

8. The moisturizing and soft-textured face cream as described in claim 6, characterized in that, The face cream also includes 0.1-5 parts by weight of a skin conditioning agent; The skin conditioning agent is a combination of Scutellaria baicalensis flower / leaf / stem extract, algal oligosaccharides, glyceryl glucoside, camellia flower extract and hyaluronic acid.

9. A method for preparing a moisturizing and soft-textured face cream as described in any one of claims 6-8, characterized in that, The preparation method includes: (1) Heat deionized water, then add polyol, thickener and antioxidant, mix and homogenize to obtain an aqueous phase liquid; The soft emulsion composition and emollient are heated and then mixed and homogenized to obtain an oil phase liquid; (2) Mix the oil phase liquid and the aqueous phase liquid, and homogenize to obtain the moisturizing and soft-textured face cream.

10. The preparation method according to claim 9, characterized in that, In step (1), the deionized water is heated to 80-90℃; In step (1), the oil phase liquid is prepared by heating to 80-90℃; After mixing in step (2), the mixture is cooled down, and then a skin conditioning agent is added; The temperature was lowered to 40-50℃.

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