Skin care composition, bead type essence and preparation method of bead type essence

Abstract

The invention relates to the technical field of cosmetics, and particularly discloses a skin care composition, bead type essence and a preparation method of the bead type essence. The skin care composition comprises the following components in percentage by mass: a water phase: 2-5% of a plant extract I, 1-11% of a humectant, 1-3% of nicotinamide and 0.5-1% of a thickening agent; the plant extract I is a kangaroo claw extract, a gleditsia tristata seed extract, a roselle extract and hydrolyzed ginsenoside; an oil phase: 0.5-2% of a plant extract II, 0.5-1.5% of an emollient and 0.1-0.3% of an antioxidant; the plant extract II is a simmondsia chinensis seed oil and dunaliella salina extract; and water. The skin care composition provided by the invention can be used for preparing independent oil-bead-shaped condensed bead type essence, and can realize efficient permeation and deep moistening of skin while keeping excellent dispersity and stability, so that a very good repairing effect is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of cosmetics, and in particular to a skin care composition, a bead-type essence and a preparation method thereof. Background Art

[0002] As consumers' requirements for the efficacy and user experience of skin care products continue to increase, the field of skin care products has developed rapidly. Among them, essence, as a high-efficiency skin care product, has made significant progress in its formula design and preparation technology in recent years. The types of essence products currently on the market mainly include emulsion type, water-based type, etc. These products play an important role in moisturizing, anti-oxidation, anti-aging and other aspects, and greatly meet the needs of user groups with different skin types and needs.

[0003] In recent years, in order to improve the efficacy of skin care products, the preparation of essences mainly adopts emulsification technology to mix the water phase and the oil phase, and adds emulsifiers at the same time to ensure the stability and uniformity of the two phases; however, the above method has some limitations; for example: on the one hand, due to the natural incompatibility of the water phase and the oil phase, even after the essence is emulsified, some of the active ingredients in it may still be stratified or aggregated during storage, especially in water-based products, oil-soluble components are difficult to disperse evenly in water, resulting in reduced protection and utilization of the active ingredients; on the other hand, the above system mainly relies on emulsifiers to maintain stability, and the presence of some emulsifiers may cause discomfort to some users with sensitive skin.

[0004] Therefore, how to achieve more effective protection and uniform dispersion of effective ingredients has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] In order to overcome the problems of poor dispersibility and stability and limited effect of effective ingredients in existing essences, the present application provides a skin care composition, a bead-type essence and a preparation method thereof.

[0006] In the first aspect, the present application provides a skin care composition, which adopts the following technical solution: A skin care composition, comprising the following components by mass percentage: Aqueous phase: 2-5% of plant extract I, 1-11% of moisturizer, 1-3% of niacinamide and 0.5-1% of thickener; wherein the plant extract I is kangaroo paw extract, Gleditsia sinensis seed extract, Hibiscus sabdariffa extract and hydrolyzed ginsenosides in a weight ratio of (0.1-0.3):(0.2-0.4):(0.1-0.3):1; Oil phase: plant extract II 0.5-2%, emollient 0.5-1.5% and antioxidant 0.1-0.3%; wherein the plant extract II is jojoba seed oil and Dunaliella salina extract in a weight ratio of 1:(0.5-0.8); water.

[0007] The present application provides a skin care composition, which can ensure the stability and effectiveness of active ingredients, so that the active ingredients can be evenly distributed and effectively absorbed by the skin, thereby achieving a good repair and nourishing effect. Specifically: the water phase of the skin care composition adopts plant extract I, which is compounded by kangaroo paw extract, Gleditsia trispinata seed extract, roselle extract and hydrolyzed ginsenosides in a specific proportion, which can effectively improve the skin's moisturizing and antioxidant capabilities, and improve skin elasticity; the oil phase adopts plant extract II, which is compounded by jojoba seed oil and Dunaliella salina extract in a specific proportion. These ingredients are rich in natural oils and antioxidants. On the one hand, they can form a protective film on the skin surface, and on the other hand, they can strengthen the skin's antioxidant capacity; on the other hand, they can effectively lock in moisture, making the skin soft, moisturized and elastic. Importantly, the present application forms stably dispersed granular oil droplets in the system of the oil phase by specifically selecting and mixing the plant extract I in the water phase and the plant extract II in the oil phase. Compared with the emulsion and water-soluble type, the active ingredients in this independently existing oil droplet dosage form can achieve better effects, and the dosage form is more stable, and the skin care effect of the obtained skin care composition is better. In addition, the present application disperses the plant extract I and the plant extract II in the water phase and the oil phase respectively, so that the oil-soluble components and the water-soluble components are each in the optimal protective environment, thereby avoiding the problem of easy aggregation and uneven distribution of active substances in traditional water-based products. In summary, in the skin care composition provided by the present application, by controlling the proportion of each component in the plant extract I in the aqueous phase and the plant extract II in the oil phase within the above-mentioned range, and mixing the aqueous phase and the oil phase in a reasonable ratio, the oil phase can be evenly dispersed in the aqueous phase in the form of tiny oil droplets, thereby preparing an oil droplet-shaped condensed essence, which not only has good dispersion stability, but also can ensure that the active ingredients are effectively maintained, thereby being fully and effectively absorbed by the skin, achieving good repair and nourishing effects, and providing users with a gentle and efficient skin care experience.

[0008] In the present application, after the kangaroo paw extract, three-thorned sapodilla seed extract, roselle extract and hydrolyzed ginsenosides in plant extract I are compounded in a specific weight ratio, there is a hydrogen bond between the active ingredients, and this intermolecular force can effectively enhance the stability of the aqueous phase system, thereby ensuring the uniform dispersion and stability of the oil droplets in the oil phase; in addition, the above-mentioned plant extracts are rich in polyphenolic compounds and polysaccharides, wherein the polysaccharides have good film-forming properties and steric hindrance effects, and can form a protective layer on the surface of the oil phase particles, thereby avoiding the aggregation or stratification of the oil phase particles in the aqueous phase, forming a large number of stable oil droplets. The jojoba seed oil in plant extract II has a good moisturizing and penetration-promoting effect; and the Dunaliella salina extract is rich in carotenoids and polyunsaturated fatty acids, which can form a stable micellar structure in the oil phase, ensuring the stability and uniformity of the oil phase. The present application adopts kangaroo paw extract, Gleditsia sinensis seed extract, Hibiscus sabdariffa extract and hydrolyzed ginsenosides as the active ingredients of the water phase; jojoba seed oil and Dunaliella salina extract as the active ingredients of the oil phase. On the one hand, during use, the active ingredients in the oil phase can enhance the efficacy of the active ingredients in the water phase, creating a healthy microenvironment for the skin, thereby meeting the skin's deep moisturizing, hydrating, anti-oxidation and other needs; on the other hand, through the intermolecular force and steric hindrance effect between the active ingredients in the oil phase and the water phase, the oil phase can be evenly dispersed in the water phase in the form of tiny oil droplets, forming a condensed essence with visible oil droplets and maintaining long-lasting stability. This not only avoids the use of some emulsifiers that are not good for the skin and reduces irritation to sensitive skin, but also significantly improves the stability and utilization rate of the effective ingredients, thereby achieving a more efficient skin care effect.

[0009] In the present application, the kangaroo paw extract has deep moisturizing, anti-oxidation and skin repairing effects. On the one hand, the extract of Gleditsia sinensis seeds can remove the aging keratin on the surface of the skin, tighten the skin, and make the skin smoother and more delicate; on the other hand, it can also balance the oil and moisture of the skin, improve the overall condition of the skin, and make the skin healthier and more elastic. Roselle extract is rich in antioxidant ingredients, which helps to resist free radical damage. Hydrolyzed ginsenosides can not only whiten and moisturize, but also resist oxidation, maintain skin elasticity and firmness, and improve uneven skin tone. Jojoba seed oil is similar to natural skin oil, can easily penetrate into the epidermis of the skin and be quickly absorbed by the skin, provide good moisturizing effect, and make the skin soft, moisturized and more elastic. Dunaliella salina extract can enhance the antioxidant capacity of the skin and enhance the defense against environmental pressure. In addition, the present application makes the essence achieve efficient penetration and deep moisturizing while maintaining excellent stability and dispersibility, thereby achieving better skin care effect.

[0010] In some embodiments, the weight ratio of the kangaroo paw extract, Gleditsia sabdariffa seed extract, Roselle extract and hydrolyzed ginsenosides can be (0.1-0.2):0.3:0.2:1, (0.2-0.3):0.3:0.2:1, 0.2:(0.2-0.3):0.2:1, 0.2:(0.3-0.4):0.2:1, 0.2:0.3:(0.1-0.2):1 or 0.2:0.3:(0.2-0.3):1.

[0011] In a specific embodiment, the weight ratio of the kangaroo paw extract, Gleditsia sabdariffa seed extract, Roselle extract and hydrolyzed ginsenosides can also be 0.1:0.3:0.2:1, 0.2:0.3:0.2:1, 0.3:0.3:0.2:1, 0.2:0.2:0.2:1, 0.2:0.4:0.2:1, 0.2:0.3:0.1:1 or 0.2:0.3:0.3:1.

[0012] In some embodiments, the weight ratio of the jojoba seed oil to the Dunaliella salina extract may be 1:(0.5-0.6), 1:(0.5-0.7), 1:(0.6-0.7), 1:(0.6-0.8) or 1:(0.7-0.8).

[0013] In a specific embodiment, the weight ratio of the jojoba seed oil to the Dunaliella salina extract may also be 1:0.5, 1:0.6, 1:0.7 or 1:0.8.

[0014] Optionally, the plant extract I is kangaroo paw extract, Gleditsia trispinata seed extract, Hibiscus sabdariffa extract and hydrolyzed ginsenosides in a weight ratio of 0.2:0.3:0.2:1; The plant extract II is jojoba seed oil and Dunaliella salina extract in a weight ratio of 1:0.7.

[0015] Optionally, the humectant is selected from one or more of butylene glycol, xylitol glucoside, anhydroxylitol, xylitol, glycerol, erythritol, 1,2-hexanediol, 1,2-pentanediol and 1,3-propylene glycol; The thickener is polyacrylate cross-linked polymer-6; The emollient is selected from one or more of diphenyl dimethicone, pentaerythritol tetra(ethylhexanoate) and sea buckthorn fruit oil; The antioxidant is tocopheryl acetate and / or tocopherol.

[0016] Optionally, the aqueous phase further comprises 0.5-1% of a solubilizer, 0.2-1 part of a preservative and 0.2-0.5% of a pH adjuster.

[0017] Optionally, the oil phase further comprises 0.1-0.2% caprylic / capric triglyceride, 0.1-0.2% dimethyl isosorbide and 0.1-0.3% fragrance.

[0018] Optionally, the fragrance is essence.

[0019] Optionally, the solubilizer is PEG-60 hydrogenated castor oil; the preservative is phenoxyethanol and / or ethylhexylglycerin; and the pH adjuster is citric acid.

[0020] In a second aspect, the present application provides a bead-type essence liquid, which is prepared using the skin care composition.

[0021] In a third aspect, the present application provides a method for preparing a bead-type essence, comprising the following steps: Preparation of water phase: first, heat part of the water to 70-80°C, then add the thickener, stir until uniformly dispersed and deaerated; then cool to 40-65°C, add niacinamide, moisturizer and other components, stir until uniformly dispersed and deaerated, and obtain the water phase; Preparation of oil phase: Mix the components of the oil phase and stir until they are evenly dispersed to obtain the oil phase; Mixing: Slowly add the oil phase to the water phase, add the remaining water, and stir the oil phase evenly into the water phase by moving it up and down to obtain a bead-type essence.

[0022] The present application provides a method for preparing a bead-type essence, which wraps the oil-soluble components in the form of oil droplets and evenly disperses them in the aqueous phase, thereby being able to effectively avoid the common uneven aggregation phenomenon in aqueous solutions, thereby better protecting the oil-soluble components. Specifically: During the preparation of the aqueous phase, the stability of the aqueous phase system is ensured by uniform dispersion and degassing of the thickener, providing a good foundation for subsequent mixing. During the preparation of the oil phase, the uniform dispersion of each component ensures the uniformity and stability of the oil phase, and further enhances the effect of oil encapsulation of the extracted substance. In the mixing step, by slowly adding the oil phase and combining the specific operation of "up and down stirring" with the design of the extract selection of the present application, the use of emulsifiers that are not conducive to the skin is omitted, and the uniform distribution of the oil phase in the aqueous phase is achieved, forming a stable oil droplet structure, and effectively avoiding the problem of oil-water stratification or oil droplet aggregation.

[0023] Optionally, in the mixing step, the stirring speed is 10-30 rpm, and the up and down movement speed is 3-5 cm / s.

[0024] In some embodiments, the stirring speed may be 10-20 rpm, 10-30 rpm, 10-40 rpm, 20-30 rpm, 20-40 rpm or 30-40 rpm.

[0025] In a specific embodiment, the stirring speed can also be 10 rpm, 20 rpm, 30 rpm or 40 rpm.

[0026] In some embodiments, the speed of the up and down movement can be 3-4 cm / s, 3-5 cm / s, 3-6 cm / s, 4-5 cm / s, 4-6 cm / s or 5-6 cm / s.

[0027] In a specific embodiment, the speed of the up and down movement can also be 3 cm / s, 4 cm / s, 5 cm / s or 6 cm / s.

[0028] In summary, this application has the following beneficial effects: 1. The present application provides a skin care composition, which uses kangaroo paw extract, Gleditsia sinensis seed extract, Hibiscus sabdariffa extract and hydrolyzed ginsenosides in a weight ratio of (0.1-0.3): (0.2-0.4): (0.1-0.3): 1 as plant extract I of the aqueous phase, and uses jojoba seed oil and Dunaliella salina extract in a weight ratio of 1: (0.5-0.7) as plant extract II of the oil phase, and mixes the aqueous phase and the oil phase by up and down stirring, so that the oil phase can be evenly dispersed in the aqueous phase in the form of independent oil droplets, forming a bead-type essence with oil droplets visible to the naked eye. The bead-type essence not only has good dispersion stability, but also has excellent use effect, is conducive to the exertion of effective ingredients, can improve skin dryness, roughness and wrinkles, etc., and make the skin smooth, tender, moisturized and elastic.

[0029] 2. The present application further controls the stirring speed in the mixing step to 10-30 rpm and the up and down movement speed to 3-5 cm / s, which can further improve the dispersion stability of the bead-type essence, avoid the problem of oil-water stratification or oil droplet aggregation, and thus extend the shelf life of the bead-type essence. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a sample schematic diagram of the bead-type essence prepared in Example 2 of the present application; Figure 2 It is a sample schematic diagram of the essence prepared in Comparative Example 9 of the present application. DETAILED DESCRIPTION

[0031] The present application provides a skin care composition, which comprises the following components by mass percentage: Aqueous phase: 2-5% plant extract I, 1-11% moisturizer, 1-3% niacinamide, 0.5-1% thickener, 0.5-1% solubilizer, 0.2-1 part preservative and 0.2-0.5% pH adjuster; wherein the plant extract I is kangaroo paw extract, Gleditsia sinensis seed extract, Hibiscus sabdariffa extract and hydrolyzed ginsenosides in a weight ratio of (0.1-0.3):(0.2-0.4):(0.1-0.3):1; Oil phase: plant extract II 0.5-2%, emollient 0.5-1.5%, antioxidant 0.1-0.3%, caprylic / capric triglyceride 0.1-0.2%, isosorbide dimethyl ether 0.1-0.2% and fragrance 0.1-0.3%; wherein the plant extract II is jojoba seed oil and Dunaliella salina extract in a weight ratio of 1:(0.5-0.7); water.

[0032] Among them, the moisturizer is selected from one or more of butylene glycol, xylitol glucoside, dehydrated xylitol, xylitol, glycerin, erythritol, 1,2-hexanediol, 1,2-pentanediol and 1,3-propylene glycol; the thickener is polyacrylate crosspolymer-6; the emollient is selected from one or more of diphenyl dimethicone, pentaerythritol tetra(ethylhexanoate) and sea buckthorn fruit oil; the antioxidant is tocopheryl acetate and / or tocopherol; the solubilizer is PEG-60 hydrogenated castor oil; the preservative is phenoxyethanol and / or ethylhexylglycerin; the pH adjuster is citric acid.

[0033] The present application provides a bead-type essence liquid, and the preparation method of the bead-type essence liquid comprises the following steps: (1) Preparation of water phase: first, heat part of the water to 70-80°C, then add the thickener, stir until uniformly dispersed and deaerated; then cool to 40-65°C, add niacinamide, moisturizer and other components, stir until uniformly dispersed and deaerated, and obtain the water phase; (2) Preparation of oil phase: Mix the various components of the oil phase and stir until they are evenly dispersed to obtain the oil phase; (3) Mixing: Slowly add the oil phase to the water phase, add the remaining water, and evenly stir the oil phase into the water phase by stirring and moving up and down to obtain a bead-type essence; the stirring speed is 10-30 rpm, and the up and down speed is 3-5 cm / s.

[0034] In the examples of the present application, the trade names of kangaroo paw extract, Gleditsia trispinata seed extract, roselle extract, Dunaliella salina extract and jojoba seed oil are SKINectura, INST'TIGHT, HYDROSELLA, DUNALIELLA and SIMMONDSIA, respectively, all of which are purchased from Lucas Meyer Cosmetics; the product name of hydrolyzed ginsenosides is surfactant, purchased from Shanghai Yuyu New Material Technology Co., Ltd.; the remaining raw materials, reagents, solvents, etc. used in this application can be obtained commercially.

[0035] The present application is further described in detail below in conjunction with embodiments and performance testing experiments. Examples 1-7

[0036] Examples 1-7 each provide a bead-type essence.

[0037] The difference between the above embodiments is that the weight ratios of the components in the plant extract I are specifically shown in Table 1 below.

[0038] The preparation method of the bead-type essence provided in Examples 1-7 comprises the following steps: (1) Preparation of aqueous phase: first, heat 80 g of water to 75° C., then add 0.8 g of polyacrylate cross-linked polymer-6 thereto, stir until uniformly dispersed and deaerated; then cool to 60° C., add 2 g of butylene glycol; then cool to 40° C., add 3 g of plant extract I, 2 g of niacinamide, 0.5 g of xylitol glucoside, 0.5 g of dehydrated xylitol, 0.5 g of xylitol, 0.8 g of PEG-60 hydrogenated castor oil, 0.5 g of phenoxyethanol, and 0.4 g of citric acid, stir until uniformly dispersed and deaerated, and obtain an aqueous phase; (2) Preparation of oil phase: 1.5 g of plant extract II (jojoba seed oil and Dunaliella salina extract in a weight ratio of 1:0.7), 1 g of emollient (diphenyl dimethicone, pentaerythritol tetra(ethylhexanoate) and sea buckthorn fruit oil in a weight ratio of 1:0.6:0.3), 0.2 g of tocopherol acetate, 0.2 g of caprylic / capric triglyceride, 0.2 g of dimethyl isosorbide and 0.2 g of essence were mixed and stirred until uniformly dispersed to obtain an oil phase; (3) Mixing: Slowly add the oil phase to the water phase, add water to the essence to 100g, then stir and move up and down reciprocatingly at a stirring speed of 20rpm and an up and down movement speed of 4cm / s for 5min to evenly disperse the oil phase into the water phase to obtain a bead-type essence.

[0039] Table 1 Weight ratio of each component in the plant extract I used in the aqueous phase of Examples 1-7 Examples 8-10

[0040] Examples 8-10 each provide a bead-type essence.

[0041] The difference between the above embodiment and embodiment 2 is that the weight ratio of each component in the plant extract II is specifically shown in Table 2 below.

[0042] Table 2 Weight ratio of each component in the plant extract I used in the aqueous phase of Example 2 and Examples 8-10 Examples 11-16

[0043] Examples 11-16 each provide a bead-type essence.

[0044] The difference between the above embodiment and embodiment 2 is that in the mixing step, the stirring speed and the speed of up and down movement are specifically shown in Table 3 below.

[0045] Table 3 The stirring speed and the speed of up and down movement in the mixing step of Examples 11-16 Comparative Example 1

[0046] Comparative Example 1 provides an essence.

[0047] The difference between the above comparative example and Example 2 is that the plant extract I uses kangaroo paw extract, Gleditsia sinensis seed extract, Roselle extract and hydrolyzed ginsenosides in a weight ratio of 1:1:1:1. Comparative Example 2

[0048] Comparative Example 2 provides an essence.

[0049] The difference between the comparative example and Example 2 is that the plant extract I uses Gleditsia sinensis seed extract, Roselle extract and hydrolyzed ginsenosides in a weight ratio of 0.5:0.2:1. Comparative Example 3

[0050] Comparative Example 3 provides an essence.

[0051] The difference between the comparative example and Example 2 is that the plant extract I uses kangaroo paw extract, roselle extract and hydrolyzed ginsenosides in a weight ratio of 0.2:0.5:1. Comparative Example 4

[0052] Comparative Example 4 provides an essence.

[0053] The difference between the comparative example and Example 2 is that the plant extract I uses kangaroo paw extract, Gleditsia trispinata seed extract and hydrolyzed ginsenosides in a weight ratio of 0.4:0.3:1. Comparative Example 5

[0054] Comparative Example 5 provides an essence.

[0055] The difference between the comparative example and Example 2 is that the plant extract I uses kangaroo paw extract, Gleditsia sinensis seed extract and Roselle extract in a weight ratio of 1.2:0.3:0.2. Comparative Example 6

[0056] Comparative Example 6 provides an essence.

[0057] The difference between the comparative example and Example 2 is that the plant extract II is jojoba seed oil and Dunaliella salina extract in a weight ratio of 1:1.5. Comparative Example 7

[0058] Comparative Example 7 provides an essence.

[0059] The difference between the comparative example and Example 2 is that the plant extract II only uses jojoba seed oil. Comparative Example 8

[0060] Comparative Example 8 provides an essence.

[0061] The difference between the comparative example and Example 2 is that the plant extract II only uses the Dunaliella salina extract. Comparative Example 9

[0062] Comparative Example 9 provides an essence.

[0063] The difference between the comparative example and Example 2 is that: (3) the mixing step is: slowly adding the oil phase to the water phase, adding water to 100 g of the essence, and then stirring at a speed of 50 rpm for 10 min to obtain a bead-type essence. Performance testing 1. Efficacy determination

[0064] The efficacy of the essence obtained in Examples 1-16 and Comparative Examples 1-9 was measured, and the detection method was as follows: Test method: 50 female subjects aged 30-40 years old, 50 female subjects aged 40-50 years old, and 50 female subjects aged 50-60 years old were selected, and the subjects were randomly divided into 25 groups (16 experimental groups, 9 control groups; each group contained 2 subjects of each age group); experimental groups 1-16 used the bead-type essence provided in Examples 1-16; control groups 1-9 used the essence provided in Comparative Examples 1-9. The subjects used the essence every morning and evening after cleansing their faces, and gently massaged until the essence was completely absorbed, for a total of 28 days. During the entire test period, long-term sun exposure, outdoor sports, travel, etc. were not allowed, and cosmetics or medicines with similar efficacy to the product were not allowed to be used. During the test period, the subjects were not allowed to change their daily care habits.

[0065] Before and 28 days after using the essence, the subjects used the skin moisture tester Corneometer CM 825 to measure the moisture content of the stratum corneum of the cheeks, the Glossymeter GL200 to measure the skin gloss, the skin elasticity tester Corneometer MPA580 to test the skin elasticity of the highest part of the bilateral zygomatic bones, and the skin fast three-dimensional imaging system PRIMOS to detect skin wrinkles; the improvement rate of each index before and after the test was calculated, and the average value of each index in each group was obtained. The calculation formula for the improvement rate of each index is as follows, and the results are shown in Table 4 below; Improvement rate of each indicator = (data of a certain indicator after 28 days of use - data of a certain indicator before use) / data of a certain indicator before use × 100%; The bead-type essence prepared in Example 1 is as follows: Figure 1 As shown; Comparative Example 9 prepared essence as Figure 2 shown. Figure 1 It can be seen that the oil phase in the bead-type essence prepared in Example 1 can be evenly dispersed in the water phase in the form of independent oil droplets, forming oil droplets visible to the naked eye; Figure 2 It can be seen that the oil droplet particles in the essence prepared in Comparative Example 9 are not obviously formed.

[0066] Table 4 Efficacy test results of the bead-type essence obtained in Examples 1-16 and Comparative Examples 1-9

[0067] According to the test results in Table 4, the bead-type essence obtained in Examples 1-16 of the present application can increase the water content of the stratum corneum of the cheeks of the subjects by 15.2-18.5%, the glossiness by 23.4-26.3%, the skin elasticity by 1.1-1.5%, and the wrinkles by 13.2-15.1% after 28 days of use. However, the essence obtained in Comparative Examples 1-9 can increase the water content of the stratum corneum of the cheeks of the subjects by only 9.2-15.4%, the glossiness by only 14.8-23.4%, the skin elasticity by only 0.5-1.2%, and the wrinkles by only 9.6-12.5% ​​after 28 days of use. Therefore, it is explained that the present application uses kangaroo paw extract, Gleditsia sinensis seed extract, Hibiscus sabdariffa extract and hydrolyzed ginsenosides in a weight ratio of (0.1-0.3): (0.2-0.4): (0.1-0.3): 1 as plant extract I of the aqueous phase, and jojoba seed oil and Dunaliella salina extract in a weight ratio of 1: (0.5-0.8) as plant extract II of the oil phase, and mixes the aqueous phase and the oil phase by stirring and moving up and down. The prepared bead-type essence has excellent use effect, can improve skin dryness, roughness and wrinkles, etc., and make the skin smooth, tender, moisturized and elastic. (II) Stability test

[0068] The bead-type essences of Examples 1-16 and Comparative Examples 1-8 were placed at 25±5°C and 45±5°C for 14d, 30d, 60d, and 90d, respectively, and the bead-type essences were observed or tested for stratification, aggregation, and the results are shown in Table 5 below.

[0069] Among them, the essence prepared in Comparative Example 9 did not form obvious oil droplets, and the essence obtained was more of an emulsion, so the stability test was not performed.

[0070] Table 5 Stability test results of the bead-type essence obtained in Examples 1-16 and Comparative Examples 1-8

[0071] Table 5

[0072] The test results in Table 5 show that the bead-type essence obtained in Examples 1-14 of the present application has no obvious change in appearance after being placed at 25±5℃ and 45±5℃ for 14d, 30d, 60d, and 90d; while the bead-type essence obtained in Comparative Examples 1-8 will have a small amount of oil phase aggregation, a reduction in oil strain particles, slight stratification, obvious stratification, etc. after being placed at high temperature / for a long time. Explanation: This application uses kangaroo paw extract, Gleditsia trispinata seed extract, Hibiscus sabdariffa extract, and hydrolyzed ginsenosides in a weight ratio of (0.1-0.3): (0.2-0.4): (0.1-0.3): 1 as plant extract I in the water phase, and uses jojoba seed oil and Dunaliella salina extract in a weight ratio of 1: (0.5-0.8) as plant extract II in the oil phase, and mixes the phase with the oil phase by stirring up and down, so that the oil phase can be evenly dispersed in the water phase in the form of tiny oil droplets for a long time.

[0073] The test results of Example 2 and Examples 15-16 show that the appearance of the bead-type essence of Example 2 remained completely unchanged after being placed in an environment of 25±5℃ and 45±5℃ for 14d, 30d, 60d and 90d, while the bead-type essence of Examples 15-16 had a small amount of oil phase aggregation after being placed in an environment of 45±5℃ for 90d, indicating that the present application further controls the stirring speed in the mixing step to 10-30rpm and the up and down movement speed to 3-5cm / s, which can further improve the dispersion stability of the oil droplets in the bead-type essence, avoid the problem of oil droplet aggregation, and thereby extend the shelf life of the bead-type essence.

[0074] 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 skin care composition, characterized in that In terms of mass percentage, it includes the following components: Aqueous phase: 2-5% of plant extract I, 1-11% of moisturizer, 1-3% of niacinamide and 0.5-1% of thickener; wherein the plant extract I is kangaroo paw extract, Gleditsia sinensis seed extract, Hibiscus sabdariffa extract and hydrolyzed ginsenosides in a weight ratio of (0.1-0.3):(0.2-0.4):(0.1-0.3):1; Oil phase: plant extract II 0.5-2%, emollient 0.5-1.5% and antioxidant 0.1-0.3%; wherein the plant extract II is jojoba seed oil and Dunaliella salina extract in a weight ratio of 1:(0.5-0.8); water.

2. The skin care composition according to claim 1, characterized in that The plant extract I is kangaroo paw extract, Gleditsia trispinata seed extract, Roselle extract and hydrolyzed ginsenosides in a weight ratio of 0.2:0.3:0.2:1; The plant extract II is in a weight ratio of 1: 0.7 of jojoba seed oil and Dunaliella salina extract.

3. The skin care composition according to claim 1, characterized in that The humectant is selected from one or more of butylene glycol, xylitol glucoside, anhydroxylitol, xylitol, glycerol, erythritol, 1,2-hexanediol, 1,2-pentanediol and 1,3-propylene glycol; The thickener is polyacrylate cross-linked polymer-6; The emollient is selected from one or more of diphenyl dimethicone, pentaerythritol tetra(ethylhexanoate) and sea buckthorn fruit oil; The antioxidant is tocopheryl acetate and / or tocopherol.

4. The skin care composition according to claim 1, characterized in that The aqueous phase also includes 0.5-1% of a solubilizer, 0.2-1 part of a preservative and 0.2-0.5% of a pH adjuster.

5. The skin care composition according to claim 1, characterized in that The oil phase further comprises 0.1-0.2% of caprylic / capric triglyceride, 0.1-0.2% of dimethyl isosorbide and 0.1-0.3% of fragrance.

6. The skin care composition according to claim 4, characterized in that The solubilizer is PEG-60 hydrogenated castor oil; the preservative is phenoxyethanol and / or ethylhexylglycerin; and the pH regulator is citric acid.

7. A bead-type essence, characterized in that: The skin care composition is prepared using the skin care composition described in any one of claims 1 to 6.

8. The method for preparing the bead-type essence according to claim 7, characterized in that: The following steps are involved: Preparation of water phase: First, heat part of the water to 70-80°C, then add the thickener, stir until evenly dispersed and deaerated; Then cool to 40-65°C, add niacinamide, moisturizer and other components, stir until evenly dispersed and defoamed, and obtain a water phase; Preparation of oil phase: Mix the components of the oil phase and stir until they are evenly dispersed to obtain the oil phase; Mixing: Slowly add the oil phase to the water phase, add the remaining water, and stir the oil phase evenly into the water phase by moving it up and down to obtain a bead-type essence.

9. The method for preparing the bead-type essence according to claim 8, characterized in that: In the mixing step, the stirring speed is 10-30 rpm, and the up and down moving speed is 3-5 cm / s.

Images