A surfactant composition for makeup remover oil and a preparation method thereof

Abstract

The present invention relates to the technical field of cosmetics, and particularly relates to a surfactant composition for makeup remover oil and a preparation method thereof. The surfactant composition for makeup remover oil includes sorbitan polyether-30 tetraoleate, sorbitan polyether-30 tetraisostearate, PEG-7 glyceryl cocoate, polyglycerol-4 caprate, emollient, polyhydric alcohol, vegetable oil, purslane extract, fenugreek extract, cucumber extract and the balance of water. The composition of the present invention has high makeup removal power, good skin comfort after makeup removal, can endow the skin with a moistening effect, and has high stability.

Description

Technical Field

[0001] The present invention relates to the technical field of cosmetics, and particularly relates to a surfactant composition for makeup remover oil and a preparation method thereof. Background Art

[0002] Makeup remover oil is an emulsion-type makeup remover with less burden on the skin, excellent makeup removal ability, which can well dissolve makeup cosmetics, remove dirt on the skin, make the skin fresh, and help the skin maintain normal physiological functions. The function of makeup remover oil is to remove dirt on the skin, and the types of dirt include sebum, horny debris, residues of beauty cosmetics, etc. Apply the makeup remover oil product evenly on the face, gently massage for a moment, and wipe it off with a cotton pad or tissue after the dirt on the skin surface is fully dissolved with the product, or it can also be rinsed with water.

[0003] Surfactants, chemically synthesized oils and chemical accessories are often added to makeup remover oil, which will cause irritation to the skin, make the skin dry, uncomfortable for makeup removal, and the stability of the makeup remover lotion is poor due to the addition of oil. Therefore, providing a composition for makeup remover oil with high makeup removal power, good skin comfort after makeup removal, moistening effect on the skin and high stability is a technical problem to be solved at present. Summary of the Invention

[0004] In view of the above technical problems, the present invention proposes the technical solution of the present invention, and the technical solution of the present invention includes a surfactant composition for makeup remover oil and a preparation method thereof.

[0005] When preparing the composition of the present invention, the surfactants used include sorbitan polyether-30 tetraoleate, sorbitan polyether-30 tetraisostearate, PEG-7 glyceryl cocoate and polyglyceryl-4 caprate.

[0006] Among them, sorbitan polyether-30 tetraoleate is a non-ionic surfactant with emulsifying effect; it can be derived from plants and is biodegradable; it can also be used as an emulsifier in the water-in-oil reaction process, makeup remover oil, etc., and is suitable for the emulsification of polar and non-polar oils. It can form a stable emulsion system with a small amount of oil and fat; it has good compatibility with oil agents, has excellent solubilization ability, can solubilize vegetable oils and synthetic esters, and improves the stability of the product; it has strong makeup dissolution ability for makeup and good makeup removal effect, and is also suitable for removing heavy makeup.

[0007] Sorbitan polyether-30 tetraisostearate is a non-ionic surfactant with emulsifying effect, which can be used as an emulsifier, solubilizer and stabilizer; it is soluble in ethanol and most oils and fats, can be emulsified in water, is suitable for makeup remover products, and significantly improves the emulsification effect on synthetic esters and alkane oils.

[0008] PEG-7 glyceryl cocoate is a highly hydrophilic ester non-ionic surfactant, which has excellent makeup removal effect for water-based makeup, has relatively high transparency when emulsified in water, does not sting the eyes, and is fresh and non-greasy.

[0009] Polyglyceryl-4 caprate is a polyglycerol ester of natural origin. It is a non-ionic surfactant without PEG groups. It can be used as a mild surfactant and moisturizer for cosmetics. It has strong skin affinity and good permeability, can enhance its deep cleaning effect, has a mild cleaning ability, can reduce the irritation of the surfactant, and can make the skin smooth.

[0010] The surfactants used in the present invention, namely sorbitan polyether-30 tetraoleate, sorbitan polyether-30 tetraisostearate, PEG-7 glyceryl cocoate and polyglyceryl-4 caprate, are combined to have the effects of high-efficiency makeup removal, mildness to the skin and easy rinsing.

[0011] The present invention provides a surfactant composition for makeup remover oil, which includes sorbitan polyether-30 tetraoleate, sorbitan polyether-30 tetraisostearate, PEG-7 glyceryl cocoate, polyglyceryl-4 caprate and water.

[0012] Furthermore, by mass percentage, the surfactant composition for makeup remover oil includes 5-15% of sorbitan polyether-30 tetraoleate, 3-8% of sorbitan polyether-30 tetraisostearate, 3-8% of PEG-7 glyceryl cocoate, 1-5% of polyglyceryl-4 caprate and the balance of water.

[0013] Furthermore, by mass percentage, the surfactant composition for makeup remover oil further includes 3-6% of emollient, 6-13% of polyol and 4-10% of vegetable oil.

[0014] Furthermore, the emollient includes at least one of isocetane, cetyl ethylhexanoate, propylene glycol dicaprylate / dicaprate.

[0015] Furthermore, the polyol includes at least one of propylene glycol, butylene glycol, glycerol, polyethylene glycol, ethylene glycol.

[0016] Furthermore, the vegetable oil includes at least one of camellia oil, jojoba oil, rosehip oil, olive oil, sweet almond oil.

[0017] Furthermore, the composition, by mass percentage, further includes 0.05-0.6% of purslane extract, 0.1-1.2% of fenugreek extract, 0.1-0.8% of cucumber extract.

[0018] Furthermore, the mass ratio of the fenugreek extract to the cucumber extract is 1.5-3:1.

[0019] Further, the purslane extract can be obtained through commercial channels.

[0020] Further, the preparation method of the fenugreek extract comprises the following steps:

[0021] Step S1: Dry and crush fenugreek, and then mix it with an ethanol aqueous solution with a concentration of 20 - 35 wt% according to a mass ratio of 1:25 - 60, heat to 50 - 60 °C, and stir for 6 - 12 hours to obtain a material;

[0022] Step S2: Coarsely filter the material, ultrafilter the coarse filtrate with an ultrafiltration membrane with a molecular weight cut-off lower than 3000 Da, and concentrate the filtrate under reduced pressure and freeze-dry it until the water content is lower than 6.52 wt% to obtain the extract.

[0023] Further, the preparation method of the cucumber extract comprises the following steps:

[0024] Step S1: Dry and crush cucumber, and then mix it with water according to a mass ratio of 1:25 - 60, heat to 40 - 55 °C, and stir for 10 - 20 hours to obtain a stirred product;

[0025] Step S2: Coarsely filter the stirred product, ultrafilter the coarse filtrate with an ultrafiltration membrane with a molecular weight cut-off lower than 1500 Da, and concentrate the filtrate under reduced pressure and freeze-dry it until the water content is lower than 7.2 wt% to obtain the extract.

[0026] Further, the surfactant composition for the cleansing oil of the present invention comprises 5 - 15% sorbitan polyether-30 tetraoleate, 3 - 8% sorbitan polyether-30 tetraisostearate, 3 - 8% PEG-7 glyceryl cocoate, 1 - 5% polyglycerol-4 decanoate, 3 - 6% emollient, 6 - 13% polyol, 4 - 10% vegetable oil, 0.05 - 0.6% purslane extract, 0.1 - 1.2% fenugreek extract, 0.1 - 0.8% cucumber extract, and the balance water.

[0027] Further, the present invention also provides a preparation method of the composition, which comprises the following steps: Add water to a container, heat it, add an emollient, a vegetable oil, sorbitan polyether-30 tetraoleate, sorbitan polyether-30 tetraisostearate, PEG-7 glyceryl cocoate, and polyglycerol-4 decanoate, and stir; then add the remaining raw materials and stir to obtain the composition.

[0028] Further, heat to 50 - 70 °C.

[0029] Further, the stirring speed is 55 - 1000 rpm.

[0030] Further, it also comprises the steps of filling and sterilizing after adding the remaining raw materials and stirring.

[0031] Advantages of the present invention:

[0032] The surfactants used in the present invention, namely sorbitan polyether-30 tetraoleate, sorbitan polyether-30 tetraisostearate, PEG-7 glyceryl cocoate, and polyglyceryl-4 caprate, are combined to achieve high-efficiency makeup removal, mildness to the skin, and easy rinsing.

[0033] In the composition of the present invention, when the extracts of Portulaca oleracea, Trigonella foenum-graecum, and Cucumis sativus are omitted, the irritation test result shows positive. The present invention uses the extracts of Portulaca oleracea, Trigonella foenum-graecum, and Cucumis sativus to prepare the composition, which is non-irritating to the skin.

[0034] The composition of the present invention has good stability. The zeta potential after dilution to 100 times is -68.32 mV, and the products prepared according to the scheme of the present invention have a long shelf life. The combination of sorbitan polyether-30 tetraoleate and polyglyceryl-4 caprate used in the preparation system of the present invention can further improve the stability of the composition. When the surfactant system of the present invention is replaced, the stability of the prepared composition decreases significantly.

[0035] The combination prepared by the present invention has good makeup removal effect, and has a good effect of refreshing and moisturizing the skin when applied.

[0036] The composition of the present invention has good moisturizing effect. When removing makeup, it will not make the skin after makeup removal become dry and uncomfortable, and has the effect of moisturizing the skin after makeup removal. In the composition of the present invention, the extracts of Trigonella foenum-graecum and Cucumis sativus are used, and the two produce a compounding relationship, enhancing the moisturizing effect of the composition mutually. Especially when the ratio of the two is 1.5 - 3:1, the moisturizing effect on the skin is better. Detailed implementation manners

[0037] The following will elaborate on the present invention in combination with specific implementation manners, and various effects of the present invention will be presented more clearly therefrom. Those skilled in the art should understand that these specific implementation manners are for explaining the present invention rather than limiting the present invention.

[0038] Unless otherwise specifically stated, all kinds of raw materials, reagents, instruments, and equipment used in the present invention can be obtained through market purchase or can be prepared by existing methods.

[0039] The raw material information used in the specific implementation manners of the present invention is as follows:

[0040] Extract of Portulaca oleracea: Baoji Cosmax Cosmetic Raw Material Development Co., Ltd.

[0041] The preparation method of the extract of Trigonella foenum-graecum is as follows:

[0042] Step S1: Dry and crush fenugreek, then select powder with a particle size of 10 - 800 microns and mix it with an ethanol aqueous solution with a concentration of 32 wt% in a mass ratio of 1:42, heat to 57 °C, and stir at 55 rpm for 10 hours to obtain a material;

[0043] Step S2: Cool the material to room temperature, conduct rough filtration with a filter membrane with a pore size of 5 microns, ultrafilter the rough filtrate with an ultrafiltration membrane with a molecular weight cut-off of 1500 Da, concentrate the filtrate under reduced pressure, and freeze-dry it to a water content of about 5.12 wt% to obtain a fenugreek extract.

[0044] The preparation method of cucumber extract is as follows:

[0045] Step S1: Dry and crush cucumbers, then mix them with water in a mass ratio of 1:50, heat to 50 °C, and stir at 60 rpm for 15 hours to obtain a stirred product;

[0046] Step S2: Cool the material to room temperature, conduct rough filtration with a filter membrane with a pore size of 5 microns, ultrafilter the rough filtrate with an ultrafiltration membrane with a molecular weight cut-off of 1000 Da, concentrate the filtrate under reduced pressure, and freeze-dry it to a water content of about 4.78 wt% to obtain a cucumber extract.

[0047] I. Preparation of makeup remover products

[0048] Composition 1:

[0049] Step 1: Prepare raw materials, measured by mass percentage: 6.2% sorbitan polyether-30 tetraoleate, 4.3% sorbitan polyether-30 tetraisostearate, 4.5% PEG-7 glyceryl cocoate, 2.2% polyglycerol-4 caprate, 4.5% emollient, 12.5% polyol, 7.5% vegetable oil camellia oil, 0.5% purslane extract, 1.0% fenugreek extract, 0.4% cucumber extract, and the balance water.

[0050] Among them, the emollient composition is: 1.5% isocetane, 2.5% cetyl ethylhexanoate, and 0.5% propylene glycol dicaprylate / dicaprate; the polyol composition is: 8% 1,3-propanediol and 4.5% 1,3-butanediol; the mass ratio of fenugreek extract to cucumber extract is 2.5:1.

[0051] Step 2: Add water to a container, heat to 65 °C, add the emollient, vegetable oil, sorbitan polyether-30 tetraoleate, sorbitan polyether-30 tetraisostearate, PEG-7 glyceryl cocoate, and polyglycerol-4 caprate, and stir at 60 rpm for 0.8 hours; then cool to room temperature, add the remaining raw materials, and stir at 70 rpm for 0.3 hours to obtain the Composition 1.

[0052] Composition 2:

[0053] Step 1: Prepare raw materials, measured by mass percentage: 8% sorbitan polyether-30 tetraoleate, 3% sorbitan polyether-30 tetraisostearate, 3% PEG-7 glyceryl cocoate, 3.5% polyglyceryl-4 caprate, 4.2% emollient, 12% polyol, 8% vegetable oil camellia seed oil, 0.52% purslane extract, 0.83% fenugreek extract, 0.55% cucumber extract and the balance of water.

[0054] Among them, the emollient composition is: 2% isocetane, 2% cetyl ethylhexanoate and 0.2% propylene glycol dicaprylate / dicaprate; the polyol composition is: 6% 1,3-propanediol and 6% 1,3-butanediol; the mass ratio of fenugreek extract to cucumber extract is 1.51:1.

[0055] Step 2: Add water to a container, heat to 67 °C, add the emollient, vegetable oil, sorbitan polyether-30 tetraoleate, sorbitan polyether-30 tetraisostearate, PEG-7 glyceryl cocoate, polyglyceryl-4 caprate, and stir at 70 rpm for 1 hour; then cool to room temperature, add the remaining raw materials, and stir at 60 rpm for 0.5 hour to obtain the composition 2.

[0056] Composition 3:

[0057] Step 1: Prepare raw materials, measured by mass percentage: 8.4% sorbitan polyether-30 tetraoleate, 4.3% sorbitan polyether-30 tetraisostearate, 4.5% PEG-7 glyceryl cocoate, 4.5% emollient, 12.5% polyol, 7.5% vegetable oil camellia seed oil, 0.5% purslane extract, 1.0% fenugreek extract, 0.4% cucumber extract and the balance of water.

[0058] Among them, the emollient composition is: 1.5% isocetane, 2.5% cetyl ethylhexanoate and 0.5% propylene glycol dicaprylate / dicaprate; the polyol composition is: 8% 1,3-propanediol and 4.5% 1,3-butanediol; the mass ratio of fenugreek extract to cucumber extract is 2.5:1.

[0059] Step 2: Add water to a container, heat to 65 °C, add the emollient, vegetable oil, sorbitan polyether-30 tetraoleate, sorbitan polyether-30 tetraisostearate, PEG-7 glyceryl cocoate, and stir at 60 rpm for 0.8 hour; then cool to room temperature, add the remaining raw materials, and stir at 70 rpm for 0.3 hour to obtain the composition 3.

[0060] Composition 4:

[0061] Step 1: Prepare raw materials, measured by mass percentage: 4.3% sorbitan polyether-30 tetraisostearate, 4.5% PEG-7 glyceryl cocoate, 8.4% polyglyceryl-4 caprate, 4.5% emollient, 12.5% polyol, 7.5% vegetable oil camellia oil, 0.5% purslane extract, 1.0% fenugreek extract, 0.4% cucumber extract, and the balance water.

[0062] Among them, the emollient composition is: 1.5% isocetane, 2.5% cetyl ethylhexanoate, and 0.5% propylene glycol dicaprylate / dicaprate; the polyol composition is: 8% 1,3-propanediol and 4.5% 1,3-butanediol; the mass ratio of fenugreek extract to cucumber extract is 2.5:1.

[0063] Step 2: Add water to a container, heat to 65°C, add the emollient, vegetable oil, sorbitan polyether-30 tetraoleate, sorbitan polyether-30 tetraisostearate, PEG-7 glyceryl cocoate, polyglyceryl-4 caprate, stir at 60 rpm for 0.8 hours; then cool to room temperature, add the remaining raw materials, stir at 70 rpm for 0.3 hours to obtain the composition 4.

[0064] Composition 5:

[0065] Step 1: Prepare raw materials, measured by mass percentage: 6.2% sorbitan polyether-30 tetraoleate, 4.3% sorbitan polyether-30 tetraisostearate, 4.5% PEG-7 glyceryl cocoate, 2.2% polyglyceryl-4 caprate, 4.5% emollient, 12.5% polyol, 7.5% vegetable oil camellia oil, 0.5% purslane extract, 1.4% fenugreek extract, and the balance water.

[0066] Among them, the emollient composition is: 1.5% isocetane, 2.5% cetyl ethylhexanoate, and 0.5% propylene glycol dicaprylate / dicaprate; the polyol composition is: 8% 1,3-propanediol and 4.5% 1,3-butanediol.

[0067] Step 2: Add water to a container, heat to 65°C, add the emollient, vegetable oil, sorbitan polyether-30 tetraoleate, sorbitan polyether-30 tetraisostearate, PEG-7 glyceryl cocoate, polyglyceryl-4 caprate, stir at 60 rpm for 0.8 hours; then cool to room temperature, add the remaining raw materials, stir at 70 rpm for 0.3 hours to obtain the composition 5.

[0068] Composition 6:

[0069] Step 1: Prepare raw materials, measured by mass percentage: 6.2% sorbitan polyether-30 tetraoleate, 4.3% sorbitan polyether-30 tetraisostearate, 4.5% PEG-7 glyceryl cocoate, 2.2% polyglyceryl-4 caprate, 4.5% emollient, 12.5% polyol, 7.5% vegetable oil camellia seed oil, 0.5% purslane extract, 1.4% cucumber extract, and the balance water.

[0070] Among them, the emollient composition is: 1.5% isocetane, 2.5% cetyl ethylhexanoate, and 0.5% propylene glycol dicaprylate / dicaprate; the polyol composition is: 8% 1,3-propanediol and 4.5% 1,3-butanediol.

[0071] Step 2: Add water to a container, heat to 65 °C, add the emollient, vegetable oil, sorbitan polyether-30 tetraoleate, sorbitan polyether-30 tetraisostearate, PEG-7 glyceryl cocoate, polyglyceryl-4 caprate, stir at 60 rpm for 0.8 hours; then cool to room temperature, add the remaining raw materials, stir at 70 rpm for 0.3 hours to obtain the composition 1.

[0072] Composition 7:

[0073] Step 1: Prepare raw materials, measured by mass percentage: 6.2% sorbitan polyether-30 tetraoleate, 4.3% sorbitan polyether-30 tetraisostearate, 4.5% PEG-7 glyceryl cocoate, 2.2% polyglyceryl-4 caprate, 4.5% emollient, 12.5% polyol, 7.5% vegetable oil camellia seed oil, 0.5% purslane extract, 0.6% fenugreek extract, 0.8% cucumber extract, and the balance water.

[0074] Among them, the emollient composition is: 1.5% isocetane, 2.5% cetyl ethylhexanoate, and 0.5% propylene glycol dicaprylate / dicaprate; the polyol composition is: 8% 1,3-propanediol and 4.5% 1,3-butanediol; the mass ratio of fenugreek extract to cucumber extract is 0.75:1.

[0075] Step 2: Add water to a container, heat to 65 °C, add the emollient, vegetable oil, sorbitan polyether-30 tetraoleate, sorbitan polyether-30 tetraisostearate, PEG-7 glyceryl cocoate, polyglyceryl-4 caprate, stir at 60 rpm for 0.8 hours; then cool to room temperature, add the remaining raw materials, stir at 70 rpm for 0.3 hours to obtain the composition 7.

[0076] Composition 8:

[0077] Step 1: Prepare the raw materials, measured by mass percentage: 6.2% sorbitan polyoxyethylene (30) tetraoleate, 4.3% sorbitan polyoxyethylene (30) tetraisostearate, 4.5% PEG-7 glyceryl cocoate, 2.2% polyglyceryl-4 caprate, 4.5% emollient, 12.5% polyol, 7.5% vegetable oil camellia oil, 0.5% portulaca extract, 1.25% fenugreek extract, 0.15% cucumber extract, and the balance water.

[0078] Among them, the emollient composition is: 1.5% isocetane, 2.5% cetyl ethylhexanoate, and 0.5% propylene glycol dicaprylate / dicaprate; the polyol composition is: 8% 1,3-propanediol and 4.5% 1,3-butanediol; the mass ratio of fenugreek extract to cucumber extract is 8.3:1.

[0079] Step 2: Add water to the container, heat to 65°C, add the emollient, vegetable oil, sorbitan polyoxyethylene (30) tetraoleate, sorbitan polyoxyethylene (30) tetraisostearate, PEG-7 glyceryl cocoate, and polyglyceryl-4 caprate, stir at 60 rpm for 0.8 hours; then cool to room temperature, add the remaining raw materials, stir at 70 rpm for 0.3 hours to obtain the composition 8.

[0080] Composition 9:

[0081] Step 1: Prepare the raw materials, measured by mass percentage: 6.2% sorbitan polyoxyethylene (30) tetraoleate, 4.3% sorbitan polyoxyethylene (30) tetraisostearate, 4.5% PEG-7 glyceryl cocoate, 2.2% polyglyceryl-4 caprate, 4.5% emollient, 12.5% polyol, 7.5% vegetable oil camellia oil, and the balance water.

[0082] Among them, the emollient composition is: 1.5% isocetane, 2.5% cetyl ethylhexanoate, and 0.5% propylene glycol dicaprylate / dicaprate; the polyol composition is: 8% 1,3-propanediol and 4.5% 1,3-butanediol.

[0083] Step 2: Add water to the container, heat to 65°C, add the emollient, vegetable oil, sorbitan polyoxyethylene (30) tetraoleate, sorbitan polyoxyethylene (30) tetraisostearate, PEG-7 glyceryl cocoate, and polyglyceryl-4 caprate, stir at 60 rpm for 0.8 hours; then cool to room temperature, add the remaining raw materials, stir at 70 rpm for 0.3 hours to obtain the composition 9.

[0084] Composition 10:

[0085] Step 1: Prepare raw materials, measured by mass percentage: 6.2% PEG-10 isostearate, 4.3% sorbitan polyether-30 tetra-isostearate, 4.5% PEG-7 glyceryl cocoate, 2.2% polyglyceryl-4 caprate, 4.5% emollient, 12.5% polyol, 7.5% vegetable oil camellia seed oil, 0.5% purslane extract, 1.0% fenugreek extract, 0.4% cucumber extract and the balance of water.

[0086] Among them, the emollient composition is: 1.5% isocetane, 2.5% cetyl ethylhexanoate and 0.5% propylene glycol dicaprylate / dicaprate; the polyol composition is: 8% 1,3-propanediol and 4.5% 1,3-butanediol; the mass ratio of fenugreek extract to cucumber extract is 2.5:1.

[0087] Step 2: Add water to a container, heat to 65°C, add the emollient, vegetable oil, sorbitan polyether-30 tetraoleate, sorbitan polyether-30 tetra-isostearate, PEG-7 glyceryl cocoate, polyglyceryl-4 caprate, and stir at 60 rpm for 0.8 hours; then cool to room temperature, add the remaining raw materials, and stir at 70 rpm for 0.3 hours to obtain the composition 10.

[0088] II. Performance Test

[0089] 1. Irritation Test

[0090] The irritation of the composition of the present invention was tested by the human patch test; the specific method was: 30 male volunteers aged 35-45 without allergic dermatitis were recruited and randomly divided into 10 groups, with 3 in each group; 1.5 g of the above composition was evenly applied to a four-layer gauze of 5×5 cm in size, applied to the normal skin on the outer side of the right upper arm of the volunteer, covered with glass paper, and then fixed. After 0.5 hours of the experiment, the gauze was torn off, and the skin condition of the test area was observed. Skin turning red or having a pain sensation indicates positive, representing that the composition is irritating to the skin; skin not turning red and having no pain sensation indicates negative, representing that the composition is not irritating to the skin; among them, during the experiment, if the skin in the test area feels pain, the experiment can be terminated, representing that the combination is irritating. The test results are shown in Table 1.

[0091] Table 1: Irritation Test

[0092]

[0093]

[0094] According to the irritation test, when testing the composition 9 omitting Portulaca oleracea extract, Trigonella foenum-graecum extract, and Cucumis sativus extract, the test result was positive, indicating irritation to the skin. Compositions 1-8 and 10 have low skin irritation. The other effects of Compositions 1-8 and 10 were verified in subsequent tests, and Composition 9 was not experimented on.

[0095] II. Stability Test

[0096] The above composition was diluted 100-fold with a 20 wt% ethanol deionized aqueous solution, stirred at 35 °C and 100 rpm for 0.5 h for mixing, cooled to room temperature to obtain a dilution, and then the zeta potential was measured. The stability of the composition was characterized by the zeta potential. The greater the negative value of the measured zeta potential, the more stable the composition. The results are shown in Table 2.

[0097] Table 2: Stability Test

[0098] Test Zeta potential / mV Composition 1 -68.32 Composition 2 -66.74 Composition 3 -64.23 Composition 4 -60.57 Composition 5 -68.01 Composition 6 -67.46 Composition 7 -69.45 Composition 8 -67.92 Composition 10 -54.37

[0099] From the test results in Table 2, it can be seen that the composition of the present invention has good stability. The zeta potential after dilution 100-fold is -68.32 mV, and the product prepared according to the scheme of the present invention has a long shelf life. From the test results of Compositions 1, 3-4, and 10, it can be seen that the combination of sorbitan polyoxyethylene-30 tetraoleate and polyglycerol-4 decanoate used in the preparation system of the present invention can further improve the stability of the composition. After the surfactant system of the present invention is replaced, the stability of the prepared composition decreases significantly.

[0100] III. Makeup Removing Effect Test

[0101] Lipstick (brand: NAYOU / Na You, 605 pure red) was applied 5 times with the same force on a 2×5 cm area of artificial leather, and after standing for 30 min; a cotton swab was moistened and wiped with 0.7 mL of the above composition, and the artificial leather coated with the makeup product was wiped 12 times respectively, and then the makeup removing effect was recorded and scored (the lowest score is 0 and the highest score is 10). The higher the score, the stronger the makeup removing ability. Each group of tests was performed in parallel three times. The results of the makeup removing lipstick test of different compositions are shown in Table 3.

[0102] 54 volunteers aged 35-45 years without allergic dermatitis were recruited and randomly divided into 9 groups, with 3 males and 3 females in each group. Each volunteer used the corresponding composition in the following way: 0.4 g of the composition was evenly applied on the same 3×3 cm area of the right arm; the refreshment degree and moisturizing degree during the application process were recorded and scored, and the average value was taken (the lowest score is 0 and the highest score is 10. The higher the score, the better the effect). The results are shown in Table 3.

[0103] Table 3: Makeup Removing Effect

[0104]

[0105] As can be seen from the test results in Table 3, the combination prepared by the present invention has a good makeup removing effect, and has a good effect of refreshing and moisturizing the skin when applied.

[0106] IV. Moisturizing effect test

[0107] The relative water content on the skin surface and its change rate were used to characterize the moisturizing effect of the composition by using a skin moisture content tester Corneometer CM825. During the experiments on the refreshing degree and moisturizing degree of the above-mentioned application, before applying the composition, and 0.5 hour and 5 hours after application, the relative water content on the skin surface of the experimental area was measured by using the skin moisture content tester Corneometer CM825 (when conducting each test, skin data at 5 different positions in the test area were collected and summarized), and then the increased proportion of the water content compared with that before application at different times was calculated. The test results of the moisturizing effect of each composition are shown in Table 4.

[0108] Table 4: Moisturizing effect test

[0109]

[0110]

[0111] As can be seen from the test results in Table 4, the composition of the present invention has a good moisturizing effect. When removing makeup, it will not make the skin after makeup removal become dry and uncomfortable, and has the effect of moisturizing the skin after makeup removal. From the test results of Compositions 1, 5-8, it can be seen that fenugreek extract and cucumber extract are used in the composition of the present invention, and the two have a compound relationship, promoting each other to enhance the moisturizing effect of the composition. Especially when the ratio of the two is 1.5-3:1, the moisturizing effect on the skin is better.

[0112] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these changes and modifications.

Claims

1. Application of the combination of fenugreek extract and cucumber extract with a mass ratio of 1.5 - 3:1 in synergistically enhancing the moisturizing effect of a composition, characterized in that: In terms of mass percentage, the raw materials of the composition are: 5 - 15% sorbitan polyether - 30 tetraoleate, 3 - 8% sorbitan polyether - 30 tetraisostearate, 3 - 8% PEG - 7 glyceryl cocoate, 1 - 5% polyglyceryl - 4 caprate, 3 - 6% emollient, 6 - 13% polyol, 4 - 10% vegetable oil, 0.05 - 0.6% purslane extract, 0.1 - 1.2% fenugreek extract, 0.1 - 0.8% cucumber extract, and the balance water; Among them, the mass ratio of the fenugreek extract to the cucumber extract is 1.5 - 3:1; The preparation method of the fenugreek extract comprises the following steps: Step S1: Dry and crush fenugreek, then mix it with an ethanol aqueous solution with a concentration of 20 - 35 wt% according to a mass ratio of 1:25 - 60, heat to 50 - 60 °C, and stir for 6 - 12 hours to obtain a material; Step S2: Coarsely filter the material, ultrafilter the coarse filtrate using an ultrafiltration membrane with a molecular weight cut - off lower than 3000 Da, and concentrate the filtrate under reduced pressure and freeze - dry it until the water content is lower than 6.52 wt% to obtain the extract; The preparation method of the cucumber extract comprises the following steps: Step S1: Dry and crush cucumber, then mix it with water according to a mass ratio of 1:25 - 60, heat to 40 - 55 °C, and stir for 10 - 20 hours to obtain a stirred product; Step S2: Coarsely filter the stirred product, ultrafilter the coarse filtrate using an ultrafiltration membrane with a molecular weight cut - off lower than 1500 Da, and concentrate the filtrate under reduced pressure and freeze - dry it until the water content is lower than 7.2 wt% to obtain the extract.

2. The application according to claim 1, characterized in that The emollient includes at least one of isododecane, cetyl ethylhexanoate, propylene glycol dicaprylate / dicaprate.

3. The application according to claim 1, characterized in that The polyol includes at least one of propylene glycol, butylene glycol, glycerol, polyethylene glycol, ethylene glycol.

4. The application according to claim 1, characterized in that The vegetable oil includes at least one of camellia oil, jojoba oil, rosehip oil, olive oil, sweet almond oil.

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