A three-phase foundation liquid and its preparation method

Abstract

This invention relates to the field of cosmetics, particularly to the A61K8 / 00 field, and more specifically to a three-phase foundation and its preparation method. The three-phase foundation of this invention comprises phase A, phase B, and phase C; the raw materials for phase A include oil A, a film-forming agent, and an activator; the raw materials for phase B include a moisturizer, a thickener, contouring powder beads, a water-soluble active ingredient, and water; the raw materials for phase C include oil ester B and an oil-soluble active ingredient. The three-phase foundation prepared by this invention has a novel formulation, beautiful appearance, is moisturizing and lightweight, adheres well to the skin, and possesses excellent skincare effects, including moisturizing, brightening, oil control, soothing and repairing, and anti-dullness skincare benefits.

Description

Technical Field

[0001] This invention relates to the field of cosmetics, particularly to the A61K8 / 00 field, and more specifically to a three-phase foundation and its preparation method. Background Technology

[0002] With the rapid development of China's color cosmetics market, people's demands for color cosmetics products are becoming increasingly diversified, especially for base makeup products. Because these products come into direct contact with facial skin for extended periods, consumers have higher requirements and more precise market positioning. Besides seeking lighter, more skin-friendly formulations, they also demand the integration of skincare ingredients to enhance the functionality of base makeup products. Furthermore, in addition to basic usage needs, consumers often pay more attention to and seek products with novel formulations, attractive packaging, and engaging application methods.

[0003] Compared to the past pursuit of high coverage and a bright, white complexion in foundation makeup, today's consumers are more focused on healthy and radiant base makeup products. Analysis of the basic foundation makeup market trends shows that keywords such as "skincare ingredients," "serum," "hydration," "glow," and "natural-looking makeup" are frequently mentioned. Therefore, foundation products that nourish, moisturize, adhere well to the skin, brighten, and give the skin a radiant glow are increasingly favored by consumers. However, most common liquid foundation products on the market are primarily oil-in-water or water-in-oil formulations, with limited product appearance and often suffering from drawbacks such as a greasy and heavy feel, tendency to clog pores, insufficient moisturizing power, uneven makeup application due to powder buildup, caking, emphasizing pores, poor stability, and limited functionality.

[0004] Existing technology, patent CN110974710A, discloses a foundation liquid and its preparation method. The raw materials for preparing this foundation liquid include concealer, emulsifier, film-forming agent, emollient, suspending agent, preservative, moisturizer, colorant, fragrance, and solvent. The foundation liquid provided by this invention solves the problem of color migration during long-term standing of existing foundation liquids. It has a light and moisturizing feel, does not harm the skin, has good absorption, does not easily cake, does not smudge for a long time, has good moisturizing properties and storage stability, and maintains good reproducibility. However, the raw materials for preparing this foundation liquid include an emulsifier. Adding the emulsifier during the preparation process requires emulsification at a temperature above 80°C, which can affect the stability of the effective ingredients and the uniformity of the powder.

[0005] Existing technology, patent CN201710815071.0, discloses an anti-wrinkle oil-in-water foundation and its preparation method. The foundation prepared by this invention provides a good makeup effect, a soft and smooth texture, a silky feel, and is moisturizing and waterproof, instantly concealing fine lines, with long-lasting makeup effects. Long-term use provides a real anti-wrinkle effect, achieving a combination of makeup and skincare. However, the raw materials used in the preparation of this foundation include waterproof-treated pigments, which have a certain water-absorbing and oil-absorbing effect. Therefore, this can affect the moisturizing and skincare effects of the foundation and may lead to an oily and heavy feel on the skin, and cause breakouts. Summary of the Invention

[0006] To address the aforementioned issues, this invention provides a novel, aesthetically pleasing, moisturizing, and lightweight three-phase foundation with skincare benefits, offering multiple skincare effects such as moisturizing, brightening, oil control, and soothing repair.

[0007] The first aspect of the present invention provides a three-phase foundation liquid, wherein the raw materials for preparing the three-phase foundation liquid include phase A, phase B, and phase C; wherein the mass ratio of phase A, phase B, and phase C is 6-20:35-80:8-22.

[0008] Preferably, the raw materials for preparing phase A include oil A, film-forming agent, and activator.

[0009] More preferably, the raw materials for preparing phase A include 6-10 parts of oil ester A, 0.5-2 parts of film-forming agent, and 0.01-1 parts of active ingredient by mass.

[0010] Preferably, the raw materials for preparing phase B include humectants, thickeners, cosmetic powder beads, water-soluble active ingredients, and water.

[0011] More preferably, the raw materials for preparing phase B include, by weight, 0.5-3 parts of moisturizer, 0.1-1.5 parts of thickener, 5-15 parts of contouring powder beads, 0.01-5 parts of water-soluble active ingredient, and 30-75 parts of water;

[0012] Preferably, the raw materials for preparing the C phase include oil ester B and oil-soluble active ingredients.

[0013] More preferably, the raw materials for preparing the C phase include 8-20 parts of oil ester B and 0.01-2 parts of oil-soluble active ingredient by mass.

[0014] Preferably, the grease A is a low-polarity grease.

[0015] Preferably, the low-polarity grease includes at least one or more of isododecane, isohexadecane, squalane, hydrogenated polyisobutylene, cyclodimethylsiloxane, and polydimethylsiloxane.

[0016] Preferably, the film-forming agent includes at least one or more of polymethylsilsesquioxane, trimethylsiloxysilicate, and cyclopentadimethylsiloxane.

[0017] Preferably, the activator includes at least one or more of vitamins B, C, E, and P.

[0018] Preferably, the moisturizer includes at least one or more of glycerin, propylene glycol, butylene glycol, xylitol, and sorbitol.

[0019] Preferably, the thickener includes at least one or more of the following: ammonium acryloyldimethyl taurate / VP copolymer, sodium polyacryloyldimethyl taurate, carob gum (Ceratonia siliqua), chondrus crISPUS, sodium alginate, and sodium hyaluronate.

[0020] Preferably, the contour powder beads include at least soft bead particles.

[0021] The inventors have discovered that when the contour powder beads are soft beads and their mass fraction is 5-15 parts, the three-phase foundation can achieve better adherence and moisturizing effects. The inventors hypothesize that when the mass fraction of the contour powder beads is less than 5 parts, the mesh-gel structure of the beads is not dense enough, resulting in poor adherence of the three-phase foundation to the skin. Simultaneously, the foundation's coverage and moisturizing ability are insufficient, leading to an uneven and less adherent makeup finish. When the mass fraction of the contour powder beads is greater than 15 parts, the foundation becomes thicker, making it difficult to spread evenly, and excess pigment cannot adhere well to the skin, resulting in poor adherence. Only when the mass fraction of the contour powder beads is 5-15 parts does not only improve the moisturizing effect of the three-phase foundation but also effectively adhere to the skin, increasing its adherence. In addition, since the contour powder beads exist in the form of powder beads, the amount of oil esters and emulsifiers used in the formula can be reduced. The uniform mesh structure of the hydrogel contour powder beads makes the distribution of component B more uniform, presenting a healthy and natural makeup effect.

[0022] Preferably, the water-soluble activator includes at least Lotus Corniculata seed extract.

[0023] Preferably, the oil B is a highly polar oil.

[0024] More preferably, the highly polar oil includes at least one or more of octyl dodecyl lactate, ethylhexyl hydroxystearate, castor oil, propylene glycol dibenzoate, diisopropyl adipate, and diisopropyl sebacate.

[0025] Preferably, the oil-soluble activator includes at least red yeast rice oil.

[0026] The inventors have discovered that the mass ratio of phases A, B, and C in a three-phase foundation has a certain impact on its moisturizing effect. When the mass ratios of phases A and C are too low and the mass ratio of phase B is too high, the foundation cannot effectively retain moisture in the skin, leading to increased moisture loss and insufficient skin hydration. When the mass ratios of phases A and C are too high and the mass ratio of phase B is too low, the three-phase foundation will not spread evenly, will form a slow film, and will not adhere well to the skin, thus affecting its overall moisturizing effect. Furthermore, the foundation will feel oily and heavy. Only when the mass ratio of phases A, B, and C is 6-20:35-80:8-22 does the three-phase foundation not only effectively provide moisturizing effects but also spread evenly without causing an oily feeling on the skin, increasing user comfort.

[0027] A second aspect of the present invention provides a method for preparing a three-phase foundation liquid, comprising at least the following steps:

[0028] S1. Mix and stir the oil A, film-forming agent, and activator until completely homogeneous to obtain component A;

[0029] S2. Mix the thickener and water until a transparent gel is formed; then add the moisturizer and water-soluble active ingredients, and mix until completely homogeneous; then add the contour powder beads and mix well to obtain component B.

[0030] S3. Mix and stir the oil-soluble activator and oil B until homogeneous to obtain component C;

[0031] S4. Fill the container with phase C, phase B and phase A in sequence to obtain the three-phase foundation liquid.

[0032] Preferably, the stirring temperature in step S1 is 20-30℃, the stirring time is 5-10 min, and the stirring speed is 1000-2000 r / min.

[0033] Preferably, in step S2, the stirring temperature after adding the thickener and water is 20-30℃, the stirring time is 5-30 min, and the stirring speed is 1000-3000 r / min; the stirring temperature after adding the humectant and water-soluble active ingredient is 20-30℃, the stirring time is 5-30 min, and the stirring speed is 1000-3000 r / min; the stirring temperature after adding the contour powder beads is 20-30℃, the stirring time is 10-30 min, and the stirring speed is 300-600 r / min.

[0034] Preferably, the stirring temperature in step S3 is 20-30℃, the stirring time is 5-10 min, and the stirring speed is 1000-2000 r / min.

[0035] Preferably, the container in step S4 is a container with a pump head.

[0036] The inventors discovered that when the stirring speed after adding contour powder beads is 300-600 r / min, the effect of the three-phase foundation liquid can be effectively improved. When the stirring speed is less than 300 r / min, the various raw material components cannot be mixed evenly. When the stirring speed is greater than 600 r / min, the excessive speed will destroy the network cross-linked structure formed by the polymer of the contour powder beads, affecting the cosmetic effect of the three-phase foundation liquid.

[0037] Beneficial effects

[0038] (1) In this invention, by limiting the mass ratio of phase A, phase B and phase C to 6-20:35-80:8-22, not only can the moisturizing effect of the three-phase foundation be improved, but it can also prevent the skin from feeling oily, thus enhancing the user experience of the product.

[0039] (2) The three-phase foundation liquid prepared by this invention has a novel formulation, beautiful appearance, and high fun to use. Furthermore, by adding specific active ingredients such as red yeast rice oil and Paeonia lactiflora seed extract to phases A, B, and C, it can meet the basic skin-care function while also having multiple skin-nourishing effects such as moisturizing, brightening, oil control, and soothing repair.

[0040] (3) The preparation process of this invention is carried out at room temperature, which effectively prevents the influence of high temperature on the stability of the effective ingredients of the foundation. In addition, the raw materials for preparing this three-phase foundation do not include color powder, emulsifier, etc., which can effectively improve the moisturizing and skin care effect of this invention. Color powder and emulsifier have a certain oil and water absorption effect, which will affect the use efficacy of the three-phase foundation.

[0041] (4) In this invention, the contour powder beads are soft beads, and the mass fraction of the contour powder beads is further defined. The soft beads have a network cross-linked structure formed by high molecular polymers, which can effectively lock in beauty and moisturizing ingredients, enhance the product's adherence, beauty effect and skin comfort.

[0042] (5) In this invention, by adding specific water-soluble and oil-soluble activators, the anti-dulling effect of the three-phase foundation liquid can be improved, the antioxidant capacity of the foundation liquid can be improved, and the oil control and moisturizing effect can be better. Attached Figure Description

[0043] Figure 1 The graph shows the foundation adherence test data for Example 3 and Comparative Examples 1-4.

[0044] Figure 2 The images show the results of foundation adherence tests for Examples 3 and Comparative Examples 1-4. Detailed Implementation

[0045] Example 1

[0046] The first aspect of this embodiment provides a three-phase foundation liquid, the raw materials of which include phase A, phase B, and phase C; the mass ratio of phase A, phase B, and phase C is 8.6:78.7:12.7. The raw materials for phase A, by mass, include: 6.6 parts of oil A, 1 part of film-forming agent, and 1 part of activator; oil A is a low-polarity oil, and by mass, it includes: 1.5 parts of isododecane (CAS No.: 62199-62-6), 2 parts of squalane (CAS No.: 111-01-3), 1.1 parts of hydrogenated polyisobutylene (CAS No.: 59030-00-1), and 2 parts of cyclodimethylsiloxane (CAS No.: 69430-24-6); the film-forming agent, by mass, includes... The formula consists of: 0.5 parts polymethylsilsesquioxane (CAS No.: 68554-70-1), 0.5 parts trimethylsiloxysilicate (CAS No.: 68988-56-7), and vitamin E (CAS No.: 2074-53-5) as the activator; Phase B, by weight, includes 5 parts contour powder beads, 71.3 parts water, 0.4 parts thickener, 1 part moisturizer, and 1 part water-soluble activator; the contour powder beads are soft beads (purchased from Huzhou Kaipuxiu Biotechnology Co., Ltd., model Coslipid). BB-14-01), the thickeners by weight include: 0.05 parts ammonium acryloyl dimethyl taurate / VP copolymer (purchased from Clariant, model Aristoflex AVC), 0.025 parts chondrus crispus (purchased from Neochem Korea, model PM2), 0.025 parts sodium hyaluronate (CAS No.: 9067-32-7); the humectants by weight include: 0.5 parts glycerin (56-81-5), 0.5 parts propylene glycol (CAS No.: 57-55-6); the water-soluble activator is Paeonia lactiflora seed extract (purchased from CMTECH CHINA INC, model CMC LCSE). GK-30); Phase C, by mass parts, includes: 11.7 parts of oil B, 1 part of oil-soluble activator. Oil B is a highly polar oil, and by mass parts, it includes: 1 part of octyl dodecyl lactate (CAS No.: 57568-20-4), 1 part of ethylhexyl hydroxystearate (CAS No.: 29383-26-4), 9 parts of propylene glycol dibenzoate (CAS No.: 19224-26-1), and 0.7 parts of diisopropyl adipate (CAS No.: 6938-94-9); The oil-soluble activator is red yeast rice oil (purchased from Beijing Dongfang Miaosen Biotechnology Co., Ltd.).

[0047] The second aspect of this embodiment provides a method for preparing a three-phase foundation liquid, including the following steps:

[0048] S1. Mix and stir the oil A, film-forming agent, and activator until completely homogeneous. Stir at 25°C for 8 minutes and at 1500 r / min to obtain phase A.

[0049] S2. Mix the thickener and water until a transparent gel is formed. The mixing temperature is 25℃, the mixing time is 9 minutes, and the mixing speed is 2000 rpm. Then add the moisturizer and water-soluble active ingredients, and mix until completely homogeneous. The mixing temperature is 25℃, the mixing time is 8 minutes, and the mixing speed is 2000 rpm. Then add the contour powder beads, and mix evenly. The mixing temperature is 25℃, the mixing time is 8 minutes, and the mixing speed is 400 rpm. Phase B is obtained.

[0050] S3. Mix the oil-soluble activator and oil B until homogeneous. The mixing temperature is 25℃, the mixing time is 6 min, and the mixing speed is 2000 r / min; to obtain phase C.

[0051] S4. Fill the C phase, B phase and A phase into the container with the pump head in sequence to obtain the three-phase foundation liquid.

[0052] Example 2

[0053] The first aspect of this embodiment provides a three-phase foundation liquid, the raw materials of which include phase A, phase B, and phase C; the mass ratio of phase A, phase B, and phase C is 9.85:75.65:14.5. The raw materials for phase A, by mass, include: 7.35 parts of oil A, 1.5 parts of film-forming agent, and 1 part of activator; oil A is a low-polarity oil, and by mass, it includes: 1.5 parts of isododecane (CAS No.: 62199-62-6), 2 parts of squalane (CAS No.: 111-01-3), 1.85 parts of hydrogenated polyisobutylene (CAS No.: 59030-00-1), and 2 parts of cyclodimethylsiloxane (CAS No.: 69430-24-6); the film-forming agent, by mass, includes... The composition consists of: 1 part polymethylsilsesquioxane (CAS No.: 68554-70-1), 0.5 parts trimethylsiloxysilicate (CAS No.: 68988-56-7), and vitamin E (CAS No.: 2074-53-5) as the activator; Phase B, by weight, includes 7.5 parts contour powder beads, 65.05 parts water, 0.5 parts thickener, 1.6 parts moisturizer, and 1 part water-soluble activator; the contour powder beads are soft beads (purchased from Huzhou Kaipuxiu Biotechnology Co., Ltd., model Coslipid). BB-14-01), the thickeners by weight include: 0.15 parts ammonium acryloyl dimethyl taurate / VP copolymer (purchased from Clariant, model Aristoflex AVC), 0.15 parts chondrus crispus (purchased from Neochem Korea, model PM2), 0.2 parts sodium hyaluronate (CAS No.: 9067-32-7); the humectants by weight include: 0.8 parts glycerin (56-81-5), 0.8 parts propylene glycol (CAS No.: 57-55-6); the water-soluble activator is Paeonia lactiflora seed extract (purchased from CMTECH CHINA INC, model CMC LCSE). GK-30); Phase C, by mass parts, includes: 13.5 parts of oil B, 1 part of oil-soluble activator. Oil B is a highly polar oil, and by mass parts, it includes: 1.5 parts of octyl dodecyl lactate (CAS No.: 57568-20-4), 1.5 parts of ethylhexyl hydroxystearate (CAS No.: 29383-26-4), 10 parts of propylene glycol dibenzoate (CAS No.: 19224-26-1), and 0.5 parts of diisopropyl adipate (CAS No.: 6938-94-9); The oil-soluble activator is red yeast rice oil (purchased from Beijing Dongfang Miaosen Biotechnology Co., Ltd.).

[0054] The second aspect of this embodiment provides a method for preparing a three-phase foundation liquid, including the following steps:

[0055] S1. Mix and stir the oil A, film-forming agent, and activator until completely homogeneous. Stir at 25°C for 5 minutes and at 1500 r / min to obtain phase A.

[0056] S2. Mix the thickener and water until a transparent gel is formed. The mixing temperature is 25℃, the mixing time is 20 minutes, and the mixing speed is 2000 rpm. Then add the humectant and water-soluble active ingredients, and mix until completely homogeneous. The mixing temperature is 25℃, the mixing time is 20 minutes, and the mixing speed is 2000 rpm. Then add the contour powder beads, and mix evenly. The mixing temperature is 25℃, the mixing time is 20 minutes, and the mixing speed is 400 rpm. Phase B is obtained.

[0057] S3. Mix the oil-soluble activator and oil B until homogeneous. The mixing temperature is 25℃, the mixing time is 5 min, and the mixing speed is 2000 r / min; to obtain phase C.

[0058] S4. Fill the C phase, B phase and A phase into the container with the pump head in sequence to obtain the three-phase foundation liquid.

[0059] Example 3

[0060] The first aspect of this embodiment provides a three-phase foundation liquid, the raw materials of which include phase A, phase B, and phase C; the mass ratio of phase A, phase B, and phase C is 13:73.2:13.8. The raw materials for phase A, by mass, include: 10 parts oil A, 2 parts film-forming agent, and 1 part activator; oil A is a low-polarity oil, and by mass, it includes: 3 parts isododecane (CAS No.: 62199-62-6), 2.5 parts squalane (CAS No.: 111-01-3), 2 parts hydrogenated polyisobutylene (CAS No.: 59030-00-1), and 2.5 parts cyclopolydimethylsiloxane (CAS No.: 69430-24-6); the film-forming agent, by mass, includes... The composition includes: 1 part polymethylsilsesquioxane (CAS No.: 68554-70-1), 1 part trimethylsiloxysilicate (CAS No.: 68988-56-7), and vitamin E (CAS No.: 2074-53-5) as the activator; Phase B, by weight, includes 10 parts contour powder beads, 58.7 parts water, 1.5 parts thickener, 2 parts moisturizer, and 1 part water-soluble activator; the contour powder beads are soft beads (purchased from Huzhou Kaipuxiu Biotechnology Co., Ltd., model Coslipid). BB-14-01), the thickeners by weight include: 0.1 parts ammonium acryloyl dimethyl taurate / VP copolymer (purchased from Clariant, model Aristoflex AVC), 0.7 parts chondrus crispus (purchased from Neochem Korea, model PM2), 0.7 parts sodium hyaluronate (CAS No.: 9067-32-7); the humectants by weight include: 1 part glycerin (56-81-5), 1 part propylene glycol (CAS No.: 57-55-6); the water-soluble activator is Paeonia lactiflora seed extract (purchased from CMTECHCHINA INC, model CMC LCSE). GK-30); Phase C, by mass parts, includes: 12.8 parts of oil B, 1 part of oil-soluble activator. Oil B is a highly polar oil, and by mass parts, it includes: 1.1 parts of octyl dodecyl lactate (CAS No.: 57568-20-4), 1.1 parts of ethylhexyl hydroxystearate (CAS No.: 29383-26-4), 10 parts of propylene glycol dibenzoate (CAS No.: 19224-26-1), and 0.6 parts of diisopropyl adipate (CAS No.: 6938-94-9); The oil-soluble activator is red yeast rice oil (purchased from Beijing Dongfang Miaosen Biotechnology Co., Ltd.).

[0061] The second aspect of this embodiment provides a method for preparing a three-phase foundation liquid, including the following steps:

[0062] S1. Mix and stir the oil A, film-forming agent, and activator until completely homogeneous. Stir at 25°C for 8 minutes and at 1500 r / min to obtain phase A.

[0063] S2. Mix the thickener and water until a transparent gel is formed. The mixing temperature is 25℃, the mixing time is 9 minutes, and the mixing speed is 2000 rpm. Then add the moisturizer and water-soluble active ingredients, and mix until completely homogeneous. The mixing temperature is 25℃, the mixing time is 8 minutes, and the mixing speed is 2000 rpm. Then add the contour powder beads, and mix evenly. The mixing temperature is 25℃, the mixing time is 8 minutes, and the mixing speed is 400 rpm. Phase B is obtained.

[0064] S3. Mix the oil-soluble activator and oil B until homogeneous. The mixing temperature is 25℃, the mixing time is 6 min, and the mixing speed is 2000 r / min; to obtain phase C.

[0065] S4. Fill the C phase, B phase and A phase into the container with the pump head in sequence to obtain the three-phase foundation liquid.

[0066] Example 4

[0067] The first aspect of this embodiment provides a three-phase foundation liquid, the raw materials of which include phase A, phase B, and phase C; the mass ratio of phase A, phase B, and phase C is 8.85:73.35:17.8. The raw materials for phase A, by mass, include: 6.35 parts of oil A, 1.5 parts of film-forming agent, and 1 part of activator; oil A is a low-polarity oil, and by mass, it includes: 1 part of isododecane (CAS No.: 62199-62-6), 2 parts of squalane (CAS No.: 111-01-3), 1.35 parts of hydrogenated polyisobutylene (CAS No.: 59030-00-1), and 2 parts of cyclodimethylsiloxane (CAS No.: 69430-24-6); the film-forming agent, by mass, includes: The composition consists of 1 part polymethylsilsesquioxane (CAS No.: 68554-70-1), 0.5 parts trimethylsiloxysilicate (CAS No.: 68988-56-7), and vitamin E (CAS No.: 2074-53-5) as the activator; phase B, by weight, includes 12.5 parts contour powder beads, 57.05 parts water, 0.5 parts thickener, 2.3 parts moisturizer, and 1 part water-soluble activator; the contour powder beads are soft beads (purchased from Huzhou Kaipuxiu Biotechnology Co., Ltd., model Coslipid). BB-14-01), the thickeners by weight include: 0.15 parts ammonium acryloyl dimethyl taurate / VP copolymer (purchased from Clariant, model Aristoflex AVC), 0.1 parts chondrus crispus (purchased from Neochem Korea, model PM2), and 0.25 parts sodium hyaluronate (CAS No.: 9067-32-7); the humectants by weight include: 1.15 parts glycerin (56-81-5), and 1.15 parts propylene glycol (CAS No.: 57-55-6); the water-soluble activator is Paeonia lactiflora seed extract (purchased from CMTECH CHINA INC, model CMC LCSE). GK-30); Phase C, by mass parts, includes: 16.8 parts of oil B, 1 part of oil-soluble activator. Oil B is a highly polar oil, and by mass parts, it includes: 2 parts of octyl dodecyl lactate (CAS No.: 57568-20-4), 2 parts of ethylhexyl hydroxystearate (CAS No.: 29383-26-4), 12 parts of propylene glycol dibenzoate (CAS No.: 19224-26-1), and 0.8 parts of diisopropyl adipate (CAS No.: 6938-94-9); The oil-soluble activator is red yeast rice oil (purchased from Beijing Dongfang Miaosen Biotechnology Co., Ltd.).

[0068] The second aspect of this embodiment provides a method for preparing a three-phase foundation liquid, including the following steps:

[0069] S1. Mix and stir the oil A, film-forming agent, and activator until completely homogeneous. Stir at 25°C for 8 minutes and at 1500 r / min to obtain phase A.

[0070] S2. Mix the thickener and water until a transparent gel is formed. The mixing temperature is 25℃, the mixing time is 9 minutes, and the mixing speed is 2000 rpm. Then add the moisturizer and water-soluble active ingredients, and mix until completely homogeneous. The mixing temperature is 25℃, the mixing time is 8 minutes, and the mixing speed is 2000 rpm. Then add the contour powder beads, and mix evenly. The mixing temperature is 25℃, the mixing time is 8 minutes, and the mixing speed is 400 rpm. Phase B is obtained.

[0071] S3. Mix the oil-soluble activator and oil B until homogeneous. The mixing temperature is 25℃, the mixing time is 6 min, and the mixing speed is 2000 r / min; to obtain phase C.

[0072] S4. Fill the C phase, B phase and A phase into the container with the pump head in sequence to obtain the three-phase foundation liquid.

[0073] The container in step S4 is a container with a pump head.

[0074] Example 5

[0075] The first aspect of this embodiment provides a three-phase foundation liquid, the raw materials of which include phase A, phase B, and phase C; the mass ratio of phase A, phase B, and phase C is 11:70.5:18.5. The raw materials for phase A, by mass, include: 8 parts of oil A, 2 parts of film-forming agent, and 1 part of activator; oil A is a low-polarity oil, and by mass, it includes: 2 parts of isododecane (CAS No.: 62199-62-6), 2 parts of squalane (CAS No.: 111-01-3), 2 parts of hydrogenated polyisobutylene (CAS No.: 59030-00-1), and 2 parts of cyclodimethylsiloxane (CAS No.: 69430-24-6); the film-forming agent, by mass, includes: 1.5... The composition consists of 0.5 parts polymethylsilsesquioxane (CAS No.: 68554-70-1), 0.5 parts trimethylsiloxysilicate (CAS No.: 68988-56-7), and vitamin E (CAS No.: 2074-53-5) as the activator; phase B, by weight, includes 15 parts contour powder beads, 50.8 parts water, 1 part thickener, 2.7 parts moisturizer, and 1 part water-soluble activator; the contour powder beads are soft beads (purchased from Huzhou Kaipuxiu Biotechnology Co., Ltd., model Coslipid). BB-14-01), the thickeners by weight include: 0.2 parts acrylamide dimethyl taurate / VP copolymer (purchased from Clariant, model Aristoflex AVC), 0.4 parts chondrus crispus (purchased from Neochem Korea, model PM2), 0.4 parts sodium hyaluronate (CAS No.: 9067-32-7); the humectants by weight include: 0.5 parts glycerin (56-81-5), 0.5 parts propylene glycol (CAS No.: 57-55-6); the water-soluble activator is Paeonia lactiflora seed extract (purchased from CMTECH CHINA INC, model CMC LCSE). GK-30); Phase C, by mass parts, includes: 17.5 parts of oil B, 1 part of oil-soluble activator. Oil B is a highly polar oil, and by mass parts, it includes: 2 parts of octyl dodecyl lactate (CAS No.: 57568-20-4), 1 part of ethylhexyl hydroxystearate (CAS No.: 29383-26-4), 14 parts of propylene glycol dibenzoate (CAS No.: 19224-26-1), and 0.5 parts of diisopropyl adipate (CAS No.: 6938-94-9); The oil-soluble activator is red yeast rice oil (purchased from Beijing Dongfang Miaosen Biotechnology Co., Ltd.).

[0076] The second aspect of this embodiment provides a method for preparing a three-phase foundation liquid, including the following steps:

[0077] S1. Mix and stir the oil A, film-forming agent, and activator until completely homogeneous. Stir at 25°C for 8 minutes and at 1500 r / min to obtain phase A.

[0078] S2. Mix the thickener and water until a transparent gel is formed. The mixing temperature is 25℃, the mixing time is 9 minutes, and the mixing speed is 2000 rpm. Then add the moisturizer and water-soluble active ingredients, and mix until completely homogeneous. The mixing temperature is 25℃, the mixing time is 8 minutes, and the mixing speed is 2000 rpm. Then add the contour powder beads, and mix evenly. The mixing temperature is 25℃, the mixing time is 8 minutes, and the mixing speed is 400 rpm. Phase B is obtained.

[0079] S3. Mix the oil-soluble activator and oil B until homogeneous. The mixing temperature is 25℃, the mixing time is 6 min, and the mixing speed is 2000 r / min; to obtain phase C.

[0080] S4. Fill the C phase, B phase and A phase into the container with the pump head in sequence to obtain the three-phase foundation liquid.

[0081] Comparative Example 1

[0082] This example provides a three-phase foundation liquid, the raw materials of which include phase A, phase B, and phase C; the mass ratio of phase A, phase B, and phase C is 7.5:83.5:9. The raw materials for phase A, by mass, include: 6 parts oil A, 0.5 parts film-forming agent, and 1 part activator; oil A is a low-polarity oil, and by mass, it includes: 1 part isododecane (CAS No.: 62199-62-6), 2 parts squalane (CAS No.: 111-01-3), 1 part hydrogenated polyisobutylene (CAS No.: 59030-00-1), and 2 parts cyclopolydimethylsiloxane (CAS No.: 69430-24-6); the film-forming agent, by mass, includes: 0.25... The composition consists of 0.25 parts polymethylsilsesquioxane (CAS No.: 68554-70-1), 0.25 parts trimethylsiloxysilicate (CAS No.: 68988-56-7), and vitamin E (CAS No.: 2074-53-5) as the activator; phase B, by weight, includes 2.5 parts contour powder beads, 79.4 parts water, 0.1 parts thickener, 0.5 parts moisturizer, and 1 part water-soluble activator; the contour powder beads are soft beads (purchased from Huzhou Kaipuxiu Biotechnology Co., Ltd., model Coslipid). BB-14-01), the thickeners by weight include: 0.05 parts ammonium acryloyl dimethyl taurate / VP copolymer (purchased from Clariant, model Aristoflex AVC), 0.025 parts chondrus crispus (purchased from Neochem Korea, model PM2), 0.025 parts sodium hyaluronate (CAS No.: 9067-32-7); the humectants by weight include: 0.25 parts glycerin (56-81-5), 0.25 parts propylene glycol (CAS No.: 57-55-6); the water-soluble activator is coix seed extract (purchased from CMTECH CHINA INC, model CMC LCSE). GK-30); Phase C, by mass parts, includes: 12.8 parts of oil B, 1 part of oil-soluble activator. Oil B is a highly polar oil, and by mass parts, it includes: 0.5 parts of octyl dodecyl lactate (CAS No.: 57568-20-4), 0.55 parts of ethylhexyl hydroxystearate (CAS No.: 29383-26-4), 6 parts of propylene glycol dibenzoate (CAS No.: 19224-26-1), and 0.95 parts of diisopropyl adipate (CAS No.: 6938-94-9); The oil-soluble activator is red yeast rice oil (purchased from Beijing Dongfang Miaosen Biotechnology Co., Ltd.).

[0083] The second aspect of this example provides a method for preparing a three-phase foundation liquid, comprising the following steps:

[0084] S1. Mix and stir the oil A, film-forming agent, and activator until completely homogeneous. Stir at 25°C for 8 minutes and at 1500 r / min to obtain phase A.

[0085] S2. Mix the thickener and water until a transparent gel is formed. The mixing temperature is 25℃, the mixing time is 9 minutes, and the mixing speed is 2000 rpm. Then add the moisturizer and water-soluble active ingredients, and mix until completely homogeneous. The mixing temperature is 25℃, the mixing time is 8 minutes, and the mixing speed is 2000 rpm. Then add the contour powder beads, and mix evenly. The mixing temperature is 25℃, the mixing time is 8 minutes, and the mixing speed is 400 rpm. Phase B is obtained.

[0086] S3. Mix the oil-soluble activator and oil B until homogeneous. The mixing temperature is 25℃, the mixing time is 6 min, and the mixing speed is 2000 r / min; to obtain phase C.

[0087] S4. Fill the C phase, B phase and A phase into the container with the pump head in sequence to obtain the three-phase foundation liquid.

[0088] Comparative Example 2

[0089] This example provides a three-phase foundation liquid, the raw materials of which include phase A, phase B, and phase C; the mass ratio of phase A, phase B, and phase C is 11:67:22. The raw materials for phase A, by mass, include: 8 parts oil A, 2 parts film-forming agent, and 1 part activator; oil A is a low-polarity oil, and by mass, it includes: 2 parts isododecane (CAS No.: 62199-62-6), 2 parts squalane (CAS No.: 111-01-3), 2 parts hydrogenated polyisobutylene (CAS No.: 59030-00-1), and 2 parts cyclodimethylsiloxane (CAS No.: 69430-24-6); the film-forming agent by mass includes: 0.5... The composition consists of 1 part polymethylsilsesquioxane (CAS No.: 68554-70-1), 1.5 parts trimethylsiloxysilicate (CAS No.: 68988-56-7), and vitamin E (CAS No.: 2074-53-5) as the activator; phase B, by weight, includes 17.5 parts contour powder beads, 45 parts water, 0.5 parts thickener, 3 parts moisturizer, and 1 part water-soluble activator; the contour powder beads are soft beads (purchased from Huzhou Kaipuxiu Biotechnology Co., Ltd., model Coslipid). BB-14-01), the thickeners by weight include: 0.1 parts ammonium acryloyl dimethyl taurate / VP copolymer (purchased from Clariant, model Aristoflex AVC), 0.1 parts chondrus crispus (purchased from Neochem Korea, model PM2), 0.3 parts sodium hyaluronate (CAS No.: 9067-32-7); the humectants by weight include: 1.5 parts glycerin (56-81-5), 1.5 parts propylene glycol (CAS No.: 57-55-6); the water-soluble activator is Paeonia lactiflora seed extract (purchased from CMTECH CHINA INC, model CMC LCSE). GK-30); Phase C, by mass parts, includes: 21 parts of oil B, 1 part of oil-soluble activator. Oil B is a highly polar oil, and by mass parts, it includes: 2 parts of octyl dodecyl lactate (CAS No.: 57568-20-4), 2 parts of ethylhexyl hydroxystearate (CAS No.: 29383-26-4), 16 parts of propylene glycol dibenzoate (CAS No.: 19224-26-1), and 1 part of diisopropyl adipate (CAS No.: 6938-94-9); The oil-soluble activator is red yeast rice oil (purchased from Beijing Dongfang Miaosen Biotechnology Co., Ltd.).

[0090] The second aspect of this example provides a method for preparing a three-phase foundation liquid, comprising the following steps:

[0091] S1. Mix and stir the oil A, film-forming agent, and activator until completely homogeneous. Stir at 25°C for 8 minutes and at 1500 r / min to obtain phase A.

[0092] S2. Mix the thickener and water until a transparent gel is formed. The mixing temperature is 25℃, the mixing time is 9 minutes, and the mixing speed is 2000 rpm. Then add the moisturizer and water-soluble active ingredients, and mix until completely homogeneous. The mixing temperature is 25℃, the mixing time is 8 minutes, and the mixing speed is 2000 rpm. Then add the contour powder beads, and mix evenly. The mixing temperature is 25℃, the mixing time is 8 minutes, and the mixing speed is 400 rpm. Phase B is obtained.

[0093] S3. Mix the oil-soluble activator and oil B until homogeneous. The mixing temperature is 25℃, the mixing time is 6 min, and the mixing speed is 2000 r / min; to obtain phase C.

[0094] S4. Fill the C phase, B phase and A phase into the container with the pump head in sequence to obtain the three-phase foundation liquid.

[0095] Comparative Example 3

[0096] This example provides a three-phase foundation liquid, the raw materials of which include phase A, phase B, and phase C; the mass ratio of phase A, phase B, and phase C is 12:75.2:12.8. The raw materials for phase A, by mass, include: 10 parts of oil A and 2 parts of film-forming agent; oil A is a low-polarity oil, and by mass, it includes: 3 parts of isododecane (CAS No.: 62199-62-6), 2.5 parts of squalane (CAS No.: 111-01-3), 2 parts of hydrogenated polyisobutylene (CAS No.: 59030-00-1), and 2.5 parts of cyclic polydimethylsiloxane (CAS No.: 69430-24-). 6); The film-forming agent, by weight parts, includes: 1 part polymethylsilsesquioxane (CAS No.: 68554-70-1), 1 part trimethylsiloxysilicate (CAS No.: 68988-56-7); Phase B, by weight parts, includes: 10 parts contouring powder beads, 61.7 parts water, 1.5 parts thickener, and 2 parts moisturizer; The contouring powder beads are soft beads (purchased from Huzhou Kaipuxiu Biotechnology Co., Ltd., model Coslipid BB-14-01); The thickener, by weight parts, includes: 0.1 parts ammonium acryloyl dimethyl taurate / VP copolymer (purchased from Clariant, model Aristoflex AVC), and 0.7 parts carrageenan (purchased from Neochem). The product is from a Korean company (model PM2), containing 0.7 parts sodium hyaluronate (CAS No.: 9067-32-7); the moisturizer, by weight, includes: 1 part glycerin (56-81-5), 1 part propylene glycol (CAS No.: 57-55-6); the C phase, by weight, includes: 12.8 parts oil B, which is a highly polar oil, and by weight includes: 1.1 parts octyl dodecyl lactate (CAS No.: 57568-20-4), 1.1 parts ethylhexyl hydroxystearate (CAS No.: 29383-26-4), 10 parts propylene glycol dibenzoate (CAS No.: 19224-26-1), 0.6 parts diisopropyl adipate (CAS No.: 6938-94-9); the oil-soluble activator is red yeast rice oil (purchased from Beijing Dongfang Miaosen Biotechnology Co., Ltd.).

[0097] The second aspect of this example provides a method for preparing a three-phase foundation liquid, comprising the following steps:

[0098] S1. Mix and stir the oil A, film-forming agent, and activator until completely homogeneous. Stir at 25°C for 8 minutes and at 1500 r / min to obtain phase A.

[0099] S2. Mix the thickener and water until a transparent gel is formed. The mixing temperature is 25℃, the mixing time is 9 minutes, and the mixing speed is 2000 rpm. Then add the moisturizer and water-soluble active ingredients, and mix until completely homogeneous. The mixing temperature is 25℃, the mixing time is 8 minutes, and the mixing speed is 2000 rpm. Then add the contour powder beads, and mix evenly. The mixing temperature is 25℃, the mixing time is 8 minutes, and the mixing speed is 400 rpm. Phase B is obtained.

[0100] S3. Mix the oil-soluble activator and oil B until homogeneous. The mixing temperature is 25℃, the mixing time is 6 min, and the mixing speed is 2000 r / min; to obtain phase C.

[0101] S4. Fill the C phase, B phase and A phase into the container with the pump head in sequence to obtain the three-phase foundation liquid.

[0102] Comparative Example 4

[0103] The first aspect of this comparative example provides a three-phase foundation liquid, the raw materials of which include phase A, phase B, and phase C; the mass ratio of phase A, phase B, and phase C is 15:73.2:13.8. The raw materials for phase A, by mass, include: 10 parts oil A, 2 parts film-forming agent, 1 part activator, and 2 parts emulsifier; oil A is a low-polarity oil, and by mass, it includes: 3 parts isododecane (CAS No.: 62199-62-6), 2.5 parts squalane (CAS No.: 111-01-3), 2 parts hydrogenated polyisobutylene (CAS No.: 59030-00-1), and 2.5 parts cyclic polydimethylsiloxane (CAS No.: 69430-24-6); the film-forming agent, by mass, includes: 1 part polymethylsilsesquioxane (CAS No.... The composition includes: 68554-70-1), 1 part trimethylsiloxysilicate (CAS No.: 68988-56-7), emulsifiers including 1 part PEG / PPG-10 / 1 polydimethylsiloxane and 1 part PEG / PPG-18 / 18 polydimethylsiloxane by weight; activator is vitamin E (CAS No.: 2074-53-5); phase B includes 13.89 parts colorant, 54.81 parts water, 1.5 parts thickener, 2 parts humectant, and 1 part water-soluble activator by weight; colorant by weight fraction includes: 11 parts CI 77891, 0.9 parts CI; 77492, 0.22 parts CI; 77491, 0.07 parts CI; 77499, 1.7 parts polymethyl methacrylate; Thickeners by weight include: 0.1 parts ammonium acryloyl dimethyl taurate / VP copolymer (purchased from Clariant, model Aristoflex AVC), 0.7 parts chondrus crispus (purchased from Neochem Korea, model PM2), 0.7 parts sodium hyaluronate (CAS No.: 9067-32-7); Moisturizers by weight include: 1 part glycerin (56-81-5), 1 part propylene glycol (CAS No.: 57-55-6); Water-soluble activator is Paeonia lactiflora seed extract (purchased from CMTECH CHINA INC, model CMCLCSE). GK-30); Phase C, by mass parts, includes: 12.8 parts of oil B, 1 part of oil-soluble activator. Oil B is a highly polar oil, and by mass parts, it includes: 1.1 parts of octyl dodecyl lactate (CAS No.: 57568-20-4), 1.1 parts of ethylhexyl hydroxystearate (CAS No.: 29383-26-4), 10 parts of propylene glycol dibenzoate (CAS No.: 19224-26-1), and 0.6 parts of diisopropyl adipate (CAS No.: 6938-94-9); The oil-soluble activator is red yeast rice oil (purchased from Beijing Dongfang Miaosen Biotechnology Co., Ltd.).

[0104] The second aspect of this comparative example provides a method for preparing a three-phase foundation liquid, comprising the following steps:

[0105] S1. Mix and stir the oil A, film-forming agent, activator and emulsifier until completely homogeneous. Stir at 75℃ for 8 minutes and at 1500 rpm to obtain phase A.

[0106] S2. Mix the thickener and water until a transparent gel is formed. The mixing temperature is 75℃, the mixing time is 9 minutes, and the mixing speed is 2000 rpm. Then add the humectant and water-soluble active ingredient, and mix until completely homogeneous. The mixing temperature is 75℃, the mixing time is 8 minutes, and the mixing speed is 2000 rpm. Then add the colorant, and mix until homogeneous. The mixing temperature is 75℃, the mixing time is 8 minutes, and the mixing speed is 400 rpm. Phase B is obtained.

[0107] S3. Mix the oil-soluble activator and oil B until homogeneous. The mixing temperature is 25℃, the mixing time is 6 min, and the mixing speed is 2000 r / min; to obtain phase C.

[0108] S4. Add phase C, phase B and phase A into the emulsifier in sequence, emulsify at 75°C for 25 minutes, and then cool naturally to 30°C for filling to obtain the three-phase foundation liquid.

[0109] Performance testing

[0110] I. Moisturizing Effect Test

[0111] Test samples: Three-phase foundation liquids prepared in Examples 1-5 and Comparative Examples 1-4;

[0112] Testing instrument: Corneometer MPA580;

[0113] Test subjects: female volunteers aged 20-40, 10 people in each group;

[0114] Test method:

[0115] 1. Select a 2x2cm measurement area on the inner wall of the subject's forearm and apply the product evenly to the area to be tested;

[0116] 2. Measurements were taken using a Corneometer MPA580 before and 4 hours after using the test sample.

[0117] 3. Take measurements at the same point 5 times, exclude the maximum and minimum values, and record the average of the 3 measurements.

[0118] The formula for calculating the stratum corneum moisture growth rate is as follows:

[0119] Moisture growth rate = (Difference in stratum corneum moisture content before and after use) / (Stratum corneum moisture content before use) * 100%

[0120] The results are shown in Table 1.

[0121] Table 1

[0122] serial number Moisture growth rate serial number Moisture growth rate Example 1 13.82％ Comparative Example 1 10.17％ Example 2 14.64％ Comparative Example 2 12.84％ Example 3 14.70％ Comparative Example 3 10.37％ Example 4 13.93％ Comparative Example 4 11.06％ Example 5 14.24％

[0123] As can be seen from the test data of Examples 1-5 and Comparative Examples 1-2, the ratio of phases A, B, and C within the preferred range of this invention has a certain impact on the moisturizing effect. Too much phase B and too little phases A and C will fail to provide the skin with adequate water-locking ability, increasing transepidermal water loss and resulting in insufficient skin hydration. Too little phase B and too much phases A and C will lead to uneven sample application, slow film formation, and insufficient skin adhesion, thus affecting the overall moisturizing properties of the sample, and the foundation will feel oily and heavy.

[0124] The test data from Example 3 and Comparative Example 3 show that active ingredients and oil-soluble active ingredients have a significant impact on the moisturizing effect of foundation. When no active ingredients or oil-soluble active ingredients are added, the moisturizing ability of the three-phase foundation on the skin is significantly reduced.

[0125] The test data from Example 3 and Comparative Example 4 show that the addition of colorants also affects the overall moisturizing effect of the foundation, with the most significant improvement in moisturizing effect observed when the preferred ratio is increased. When contouring powder beads are replaced with colorants, the moisturizing ability of the foundation is reduced due to the water- and oil-absorbing properties of the colorants. Ordinary emulsification processes require high temperatures, which can easily lead to a decrease in the efficacy of active ingredients, thus affecting the skin-nourishing function of the foundation. Furthermore, because ordinary colorants lack the network structure of contouring powder beads, powder accumulation is more likely to occur, leading to oxidation, dullness, and powder embedding.

[0126] II. Foundation Adhesion Test

[0127] Test samples: Example 3 and Comparative Examples 1-4

[0128] Testing instruments: C-Cube (PIXIENCE, France), CM2500D Spectrometer (KM, Japan);

[0129] Test subjects: 5 women aged 30-35;

[0130] Test method: 1. Clean the inside of the forearm, rest for 20 minutes in a laboratory with a temperature of 21±1℃ and a relative humidity of 50±10%, and select a 2×2cm area on the inside of the forearm as the test area;

[0131] 2. Apply equal amounts of the product from Example 3 and the samples from Comparative Examples 1-4 to the area to be tested;

[0132] 3. Place a 1.5×1.5cm filter paper sheet over the test area and press it down 5 times with the same pressure;

[0133] 4. Photograph the filter paper using a C-Cube and measure the L value of the filter paper using a CM2500D. The results are as follows: Figure 1 , Figure 2 As shown.

[0134] Parameter explanation:

[0135] The L value of the filter paper was analyzed using the CM2500D. The L value is the brightness. The larger the L value, the better the product fit (L value represents brightness).

[0136] Observe the amount of makeup residue on the filter paper in the C-Cube image; the less residue, the better it adheres.

[0137] As can be seen from the test data of Example 3 and Comparative Examples 1-2, contour powder beads have a better adherence effect on foundation within the preferred range of the present invention. When the contour powder beads are below the preferred range of the present invention, the mesh gel structure of the contour powder beads is not dense enough, resulting in poor adherence of foundation to skin. At the same time, the coverage and moisturizing ability of foundation are insufficient, which also leads to uneven and poor adherence of makeup. When the contour powder beads are above the preferred range of the present invention, the consistency of foundation becomes higher, making it difficult to spread evenly. Excess pigment cannot adhere well to the skin, resulting in poor adherence.

[0138] As can be seen from the test data of Example 3 and Comparative Example 4, when contour powder beads are replaced with colorants, the colorants do not have the mesh-gel structure of contour powder beads, resulting in uneven dispersion of the colorants and insufficient adhesion to the skin, thus reducing the adherence.

[0139] The test data from Example 3 and Comparative Example 3 show that, in the short term, there is no significant difference in the adherence of foundation liquid whether or not the active ingredient is present.

[0140] Figure 1 The graph shows the foundation adherence test data for Example 3 and Comparative Examples 1-4.

[0141] Figure 2 The images show the results of foundation adherence tests for Examples 3 and Comparative Examples 1-4.

[0142] III. Anti-dullness test

[0143] Test samples: Product of Example 3 and products of Comparative Example 3 and Comparative Example 4

[0144] Testing instrument: Antera 3D (Miravex, Ireland)

[0145] Test subjects: Facial area, 15 women aged 25-36.

[0146] Test method: 1. Cleanse face and rest for 20 minutes in a laboratory with a temperature of 21±1℃ and a relative humidity of 50±10%;

[0147] 2. Use Antera 3D to take facial photos and measure the L-value of the face;

[0148] 3. Apply the samples from Example 3 and Comparative Examples 3 and 4 to the test sites;

[0149] 4. After 8 hours, and after resting for 20 minutes in a laboratory at a temperature of 21±1℃ and a relative humidity of 50±10%, facial photos were taken using Antera 3D to measure the L* value of the face.

[0150] Anti-dullness calculation formula:

[0151] L* value change rate (difference from before sample use) = (Immediate measurement after sample use - Measurement before sample use) / Measurement before sample use × 100%

[0152] L* value change rate before use (difference from before sample use) = (Measurement value after 8 hours of sample use - Measurement value before sample use) / Measurement value before sample use × 100%

[0153] The rate of change of L* value after use (the difference between the value immediately after sample use) = (Measurement value 8 hours after sample use - Measurement value immediately after sample use) / Measurement value immediately after sample use × 100%

[0154] Parameter explanation: L* represents skin brightness. The greater the change rate of L* value (the difference from before using the sample), the brighter the skin. The closer the change rate of L* value (the difference from immediately after using the sample) is to 0, the better the anti-dullness effect.

[0155] The experimental results are shown in Tables 2 and 3.

[0156] Table 2

[0157] Example 3 Comparative Example 3 Comparative Example 4 Rate of change of L* value (difference from before sample use) 1.24％ 1.31％ 1.06％ The rate of change of L* value before use (the difference between the L* value and the L* value before sample use). 0.54％ 0.48％ 0.39％

[0158] Table 3

[0159]

[0160] The test data from Example 3 and Comparative Example 3 show that after 8 hours, the skin brightness of Example 3 was slightly stronger than that of Comparative Example 3, and the anti-dullness effect was significantly stronger. This is mainly due to the addition of skin-nourishing active ingredients, which can improve the antioxidant capacity of the foundation and provide better oil control and moisturizing effects. Since excessive skin oil content can also accelerate the dulling of foundation, a foundation with oil control and moisturizing effects can reduce the dulling rate of the foundation.

[0161] The test data from Example 3 and Comparative Example 4 show that after 8 hours, the skin brightness and anti-dullness effect of Example 3 are stronger than those of Comparative Example 4. This is mainly because the colorant has a certain water and oil absorption capacity, which reduces the luster of oil to some extent, especially in dry skin, making it more prone to dryness and dullness. In contrast, the color powder in the contouring powder beads is firmly locked in a network structure formed by high molecular polymers, resulting in a more stable arrangement of the color powder. Therefore, it is better than the colorant at reducing dullness caused by changes in optical effects. On the other hand, the oils A and B in the foundation effectively moisturize and nourish the skin, resulting in a radiant makeup effect. Analysis of the performance test results of Comparative Example 4 shows that the high-temperature, long-duration emulsification process also affects the activity of active ingredients, especially antioxidants, to some extent, weakening the antioxidant effect of the foundation and making the skin more prone to oxidation and dullness.

Claims

1. A three-phase foundation liquid, characterized in that, The raw materials for preparation include phase A, phase B, and phase C; The mass ratio of phase A, phase B, and phase C is 6-20:35-80:8-22; The raw materials for preparing phase A include, by mass, 6-10 parts of oil A, 0.5-2 parts of film-forming agent, and 0.01-1 parts of vitamin E; oil A is a low-polarity oil composed of isododecane, squalane, hydrogenated polyisobutylene, and cyclodimethylsiloxane; the film-forming agent is composed of polymethylsilsesquioxane and trimethylsiloxysilicate. Phase B, by weight, comprises 0.5-3 parts of moisturizer, 0.1-1.5 parts of thickener, 5-15 parts of contouring powder beads, 0.01-5 parts of water-soluble active ingredient, and 30-75 parts of water; the contouring powder beads are soft beads, model Coslipid BB-14-01, purchased from Huzhou Kaipuxiu Biotechnology Co., Ltd.; the thickener is composed of ammonium acryloyl dimethyl taurate / VP copolymer, carrageenan, and sodium hyaluronate; the moisturizer is composed of glycerin and propylene glycol. The C phase comprises 8-20 parts by mass of oil ester B and 0.01-2 parts by mass of oil-soluble active ingredient; oil ester B is a highly polar oil composed of octyl dodecyl lactate, ethylhexyl hydroxystearate, propylene glycol dibenzoate, and diisopropyl adipate. The preparation method of the three-phase foundation liquid includes at least the following steps: S1. Mix and stir the oil A, film-forming agent, and vitamin E until completely homogeneous to obtain component A; S2. Mix the thickener and water until a transparent gel is formed; then add the moisturizer and water-soluble active ingredients, mix and stir until completely uniform, then add the contour powder beads and stir evenly to obtain component B. S3. Mix and stir the oil-soluble activator and oil B until homogeneous to obtain component C; S4. Fill the container with phase C, phase B and phase A in sequence to obtain the three-phase foundation liquid.

2. The three-phase foundation liquid according to claim 1, characterized in that, The stirring temperature in step S1 is 20-30℃, the stirring time is 5-10 min, and the stirring speed is 1000-2000 r / min; the stirring temperature in step S3 is 20-30℃, the stirring time is 5-10 min, and the stirring speed is 1000-2000 r / min.

3. The three-phase foundation liquid according to claim 1, characterized in that, In step S2, the stirring temperature after adding the thickener and water is 20-30℃, the stirring time is 5-30 min, and the stirring speed is 1000-3000 r / min; the stirring temperature after adding the humectant and water-soluble active ingredient is 20-30℃, the stirring time is 5-30 min, and the stirring speed is 1000-3000 r / min; the stirring temperature after adding the contour powder beads is 20-30℃, the stirring time is 10-30 min, and the stirring speed is 300-600 r / min.

4. The three-phase foundation liquid according to claim 1, characterized in that, The container in step S4 is a container with a pump head.

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