Emulsion loaded with antioxidant composition, emulsion mask and preparation method

Abstract

The present application discloses an emulsion loaded with an antioxidant composition, a facial mask and a preparation method. The emulsion loaded with an antioxidant composition of the present application includes an antioxidant composition, and the antioxidant composition includes one or more of astaxanthin, troxerutin and hydroxymethoxyphenyl decanone. The emulsion facial mask of the present application has strong antioxidant properties and stability, and can effectively retain the color of astaxanthin. The present application also provides an emulsion facial mask, in which the emulsion in the emulsion facial mask has good compatibility with the membrane cloth, can instantly improve skin moisture, improve skin brightness, reduce skin redness, and reduce skin yellowness. Long-term use can improve skin moisture, improve barrier, reduce skin redness, improve skin brightness, reduce ultraviolet spots, and improve skin fineness.

Description

Technical Field

[0001] The present application relates to the technical field of cosmetics, and in particular to an emulsion loaded with an antioxidant composition, an emulsion mask, and a preparation method thereof. Background Art

[0002] As the atmospheric ozone layer is damaged and the intensity of solar ultraviolet radiation increases, the skin will produce oxidative stress after being exposed to ultraviolet radiation. Oxidative stress refers to the excessive production of reactive oxygen species (ROS) by the skin after being exposed to ultraviolet radiation. When there are too many ROS in the body, it can induce cell apoptosis and reduce collagen, leading to rough skin, aggravated ultraviolet spots, dull skin and other aging appearances. With the continuous development of facial rejuvenation technology, photoelectric, chemical peeling, microneedle and other technologies can effectively improve the appearance of aging skin, but they will cause damage to the skin barrier. If you do not pay attention to subsequent maintenance, it will cause pigmentation and damage the skin barrier. In the fast-paced era, consumers' pursuit of efficacy requires not only long-term, but also quick and immediate results.

[0003] Facial masks refer to skin care products that are applied to the surface of the human body and have specific effects on the skin. Facial masks can form a closed space with the skin surface, increase the skin surface temperature, expand the skin surface pores, moisturize the skin with water and active nutrients, and quickly achieve the desired effect. The mask base fabric and mask essence in the mask are an inseparable whole. To achieve a good use effect, not only the addition of the essence's functional ingredients must be considered, but also the compatibility of the mask base fabric and the essence must be examined. At present, research on facial masks mainly focuses on the performance of the mask fabric itself or the performance of the mask liquid, and less attention is paid to the compatibility of the two. In addition, with the upgrading of consumer demand, the application scenarios of facial masks have also diversified, and there is a lack of antioxidant masks for after-sun repair and reducing ultraviolet spots. Summary of the invention

[0004] Purpose of the invention: The present application provides an emulsion loaded with an antioxidant composition, an emulsion mask, and a preparation method. The emulsion loaded with an antioxidant composition provided by the present application has a natural orange low-viscosity appearance, good stability, and good antioxidant effect. The emulsion in the emulsion mask provided by the present application has good compatibility with the membrane cloth, and can instantly increase skin moisture, increase skin brightness, reduce skin redness, and reduce skin yellowness. Long-term use can increase skin moisture, improve the barrier, reduce skin redness, increase skin brightness, reduce ultraviolet spots, and improve skin fineness.

[0005] Technical solution: The embodiment of the present application provides an emulsion loaded with an antioxidant composition, including an antioxidant composition, wherein the antioxidant composition includes one or more of astaxanthin, troxerutin and hydroxymethoxyphenyldecanoate.

[0006] In some embodiments, the mass percentage of astaxanthin in the emulsion is 0.005% to 0.2%, the mass percentage of troxerutin in the emulsion is 0.005% to 0.2%, and the mass percentage of hydroxymethoxyphenyldecanone in the emulsion is 0.01% to 0.05%.

[0007] In some embodiments, the emulsion also includes an emulsifier composition, which includes cetearyl glucoside / cetearyl alcohol, polyglyceryl-10 oleate and C20-22 alcohol phosphate / C20-22 alcohol; the mass percentage of the cetearyl glucoside / cetearyl alcohol in the emulsion is 0.1% to 2%, the mass percentage of the polyglyceryl-10 oleate in the emulsion is 0.1% to 2%, and the mass percentage of the C20-22 alcohol phosphate / C20-22 alcohol in the emulsion is 0.2% to 1%.

[0008] In some embodiments, the emulsion further includes an aqueous phase, wherein the aqueous phase includes a polyol and a water-soluble polymer; based on the total mass of the emulsion, the mass percentage of the polyol in the emulsion is 3% to 7%, and the mass percentage of the water-soluble polymer in the emulsion is 0.1% to 0.5%.

[0009] In some embodiments, the polyol comprises glycerol; and the water-soluble polymer comprises xanthan gum.

[0010] In some embodiments, the emulsion further comprises an oil phase, and the mass percentage of the oil phase in the emulsion is 1% to 5% based on the total mass of the emulsion.

[0011] In some embodiments, the oil phase comprises squalane.

[0012] In some embodiments, the emulsion further comprises a preservative, and the mass percentage of the preservative in the emulsion is 0.1% to 5% based on the total mass of the emulsion.

[0013] In some embodiments, the preservative includes one or both of phenoxyethanol and ethylhexylglycerin.

[0014] In some embodiments, the viscosity of the emulsion is 1000 mPa·s to 1500 mPa·s.

[0015] The embodiment of the present application also provides a method for preparing an emulsion loaded with an antioxidant composition, comprising the following steps:

[0016] The emulsifier composition and the oil phase are heated and dissolved at 70°C to 75°C to form a uniform phase to obtain phase A;

[0017] Mix and dissolve water, polyol and water-soluble polymer at 70°C to 75°C until a uniform phase is obtained to obtain phase B;

[0018] Add phase A to phase B, mix and homogenize to obtain phase C;

[0019] Accurately weigh an antioxidant composition, wherein the antioxidant composition includes one or more of astaxanthin, troxerutin and hydroxymethoxyphenyl decanone, and evenly disperse the antioxidant composition to obtain phase E;

[0020] The obtained phase C is cooled to 60-65°C, phase E is added to phase C, homogenized, cooled to 40-45°C, and a preservative is added to obtain an emulsion loaded with an antioxidant composition.

[0021] The emulsion loaded with the antioxidant composition of the present application can increase skin moisture, increase skin brightness, reduce skin redness, and reduce skin yellowness. Long-term use can increase skin moisture, improve skin barrier, reduce skin redness, increase skin brightness, reduce UV spots, and improve skin smoothness.

[0022] Beneficial effects: The present application provides an emulsion loaded with an antioxidant composition, a facial mask and a preparation method. The emulsion loaded with an antioxidant composition of the present application includes an antioxidant composition, and the antioxidant composition includes one or more of astaxanthin, troxerutin and hydroxymethoxyphenyl decanone. The emulsion mask of the present application has a natural orange low-viscosity appearance, strong antioxidant properties, high stability, and can effectively retain the color of astaxanthin. The present application also provides an emulsion mask, in which the emulsion in the emulsion mask has good compatibility with the membrane cloth, instantly improves skin moisture and brightness, reduces skin redness, reduces skin yellowness, and long-term improves skin moisture, skin barrier, reduces skin redness, enhances skin brightness, reduces ultraviolet spots, and improves fineness. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The test results of the skin improvement of the subjects using the lotion mask prepared in the examples of this application;

[0024] Figure 2 The test results of the skin improvement of the subjects using the lotion mask prepared in the examples of this application;

[0025] Figure 3 The test results of the skin improvement of the subjects using the lotion mask prepared in the examples of this application;

[0026] Figure 4 The test results of the skin improvement of the subjects using the lotion mask prepared in the examples of this application;

[0027] Figure 5 The test results of the improvement of ultraviolet pigmentation spots on the skin of the subjects using the emulsion mask prepared in the examples of the present application;

[0028] Figure 6These are the test results of the improvement of ultraviolet pigmentation on the skin of test subjects using the emulsion mask prepared in the examples of this application. DETAILED DESCRIPTION

[0029] The above contents of the present application are further described in detail below through examples. For technicians in this research field, this should not be understood as the above subject matter scope of the present application is limited to the following examples, and the technologies implemented based on the above contents of the present application all belong to the scope of the present application.

[0030] In order to reduce the damage of ultraviolet rays to the skin, an embodiment of the present application provides an emulsion loaded with an antioxidant composition, including an antioxidant composition, wherein the antioxidant composition includes one or more of astaxanthin, troxerutin and hydroxymethoxyphenyldecanoate.

[0031] In some embodiments, based on the total mass of the emulsion, the mass percentage of the antioxidant composition in the emulsion is 0.02% to 0.45%. For example, the mass percentage of the antioxidant composition in the emulsion is any value among 0.02%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.45%, or a range consisting of any two values.

[0032] In some embodiments, the mass percentage of astaxanthin in the emulsion is 0.005% to 0.2%, such as the mass percentage of astaxanthin in the emulsion is any value among 0.005%, 0.01%, 0.05%, 0.1%, 0.2%, or a range consisting of any two values.

[0033] In some embodiments, the mass percentage of troxerutin in the emulsion is 0.005% to 0.2%, such as the mass percentage of troxerutin in the emulsion is any value among 0.005%, 0.01%, 0.05%, 0.1%, 0.2%, or a range consisting of any two values.

[0034] In some embodiments, the mass percentage of hydroxymethoxyphenyl decanone in the emulsion is 0.01% to 0.05%, such as the mass percentage of hydroxymethoxyphenyl decanone in the emulsion is any value among 0.01%, 0.02%, 0.03%, 0.04%, 0.05%, or a range consisting of any two values.

[0035] In some embodiments, the emulsion loaded with the antioxidant composition further includes an emulsifier composition, the emulsifier composition includes cetearyl glucoside / cetearyl alcohol, polyglycerol-10 oleate and C20-22 phosphate alcohol ester / C20-22 alcohol; based on the total mass of the emulsion, the mass percentage of the emulsion by the emulsifier composition is 0.4% to 5%. For example, the mass percentage of the emulsion by the emulsifier composition is any value among 0.4%, 0.5%, 1%, 2%, 3%, 4%, 5%, or a range consisting of any two values.

[0036] In some embodiments, the mass percentage of cetearyl glucoside / cetearyl alcohol in the emulsion is 0.1% to 2%. For example, the mass percentage of cetearyl glucoside / cetearyl alcohol in the emulsion is any value among 0.1%, 0.5%, 1%, 2%, or a range consisting of any two values.

[0037] In some embodiments, the mass percentage of polyglycerol-10 oleate in the emulsion is 0.1% to 2%, such as the mass percentage of polyglycerol-10 oleate in the emulsion is any value among 0.1%, 0.5%, 1%, 2%, or a range consisting of any two values.

[0038] In some embodiments, the mass percentage of C20-22 alcohol phosphate ester / C20-22 alcohol in the emulsion is 0.2% to 1%. For example, the mass percentage of C20-22 alcohol phosphate ester / C20-22 alcohol in the emulsion is any value among 0.2%, 0.5%, 1%, or a range consisting of any two values.

[0039] In some embodiments, the emulsion loaded with the antioxidant composition further includes an aqueous phase, wherein the aqueous phase includes a polyol and a water-soluble polymer; based on the total mass of the emulsion, the mass percentage of the polyol in the emulsion is 3% to 7%. For example, the mass percentage of the polyol in the emulsion is any value among 3%, 4%, 5%, 6%, 7%, or a range consisting of any two values.

[0040] In some embodiments, the polyol includes glycerol.

[0041] In some embodiments, the mass percentage of the water-soluble polymer in the emulsion is 0.1% to 0.5%, such as 0.1%, 0.2%, 0.3%, 0.4%, 0.5% or any range consisting of any two values.

[0042] In some embodiments, the water-soluble polymer comprises xanthan gum.

[0043] In some embodiments, the emulsion loaded with the antioxidant composition further includes a preservative, and the mass percentage of the preservative in the emulsion is 0.1% to 5% based on the total mass of the emulsion.

[0044] In some embodiments, the emulsion loaded with the antioxidant composition further comprises water, and the content of water is added to 100%.

[0045] In some embodiments, the emulsion loaded with the antioxidant composition further comprises an oil phase, and the mass percentage of the oil phase in the emulsion is 1% to 5% based on the total mass of the emulsion, such as the mass percentage of the oil phase in the emulsion is any value of 1%, 2%, 3%, 4%, 5%, or a range consisting of any two values.

[0046] In some embodiments, the oil phase includes squalane.

[0047] In some embodiments, the viscosity of the emulsion loaded with the antioxidant composition is 1000mPa·s to 1500mPa·s. For example, the viscosity of the emulsion is any value of 1100mPa·s, 1200mPa·s, 1300mPa·s, 1400mPa·s, 1500mPa·s, or a range consisting of any two values. The emulsion loaded with the antioxidant composition of the present application has both an aqueous phase and an oil phase, has good permeability and emollient ability, and can solubilize oil-soluble antioxidants, and is a better choice for the film liquid in the antioxidant mask. When the viscosity of the emulsion is above 3000mPa.s, the fluidity is poor, and it is difficult to match the film cloth as a film liquid. When the viscosity of the emulsion is reduced to below 1000mPa.s, the free activity of the particles in the emulsion is greatly hindered, and the product is easily stratified, resulting in product instability and affecting product performance. The present application controls the viscosity within the range of 1000 mPa·s to 1500 mPa·s by controlling the type and content of the emulsifier combination, so that the film can be well matched with the membrane cloth.

[0048] The present application provides a method for preparing an emulsion loaded with an antioxidant composition, comprising the following steps:

[0049] The emulsifier composition and the oil phase are heated and dissolved at 70°C to 75°C to form a uniform phase to obtain phase A;

[0050] Mix and dissolve water, polyol and water-soluble polymer at 70°C to 75°C until a uniform phase is obtained to obtain phase B;

[0051] Add phase A to phase B, mix and homogenize to obtain phase C;

[0052] Accurately weigh an antioxidant composition, the antioxidant composition comprising one or more of astaxanthin, troxerutin and hydroxymethoxyphenyldecanoate, and uniformly disperse the antioxidant composition to obtain phase E;

[0053] The obtained phase C is cooled to 60-65°C, phase E is added to phase C, homogenized, cooled to 40-45°C, and a preservative is added to obtain an emulsion loaded with an antioxidant composition.

[0054] In some embodiments, the present application also provides an emulsion facial mask, which includes a membrane cloth and the emulsion loaded with the antioxidant composition.

[0055] In some embodiments, the membrane cloth is a diatomaceous earth membrane cloth, and the diatomaceous earth membrane cloth structure includes viscose fiber, diatomaceous earth bio-fiber and toon fiber, wherein the proportions of viscose fiber, diatomaceous earth bio-fiber and toon fiber are 30% to 40%, 30% to 40%, and 20% to 40% respectively, and the gram weight of the membrane cloth is 40g to 55g, and the amount of each lotion mask is 25g.

[0056] The experimental methods used in the following examples are conventional methods unless otherwise specified; the reagents, materials, instruments, etc. used in the following examples are all commercially available unless otherwise specified. Among them, astaxanthin is from Guangzhou Meiren Biotechnology Co., Ltd.; troxerutin is from Guangzhou Tinglan Biotechnology Co., Ltd.; hydroxymethoxyphenyl decanone is from Dezhixin Flavors and Fragrances (Nantong) Co., Ltd.; cetearyl glucoside / cetearyl alcohol, C20-22 phosphate alcohol ester / C20-22 alcohol are from SEPPIC SA; polyglycerol-10 oleate is from Guangzhou Naibo Biotechnology Co., Ltd.; squalane is from Aprinnova LLC; phenoxyethanol / ethylhexylglycerin is from SEPPIC SA.

[0057] 1. Sample preparation

[0058] Example 1: Preparation of an emulsion loaded with an antioxidant composition

[0059] The emulsifier composition is composed of cetearyl glucoside / cetearyl alcohol, polyglyceryl-10 oleate and C20-22 alcohol phosphate / C20-22 alcohol, and the oil phase is squalane. The emulsifier composition and the oil phase are heated and dissolved at 70° C. to 75° C. until they are uniform, to obtain phase A;

[0060] The polyol is glycerol, the water-soluble polymer is xanthan gum, water, the polyol and the water-soluble polymer are mixed and dissolved at 70° C. to 75° C. until uniform, to obtain phase B;

[0061] Add phase A to phase B and mix, then homogenize for 5 minutes to obtain low-viscosity emulsion phase C;

[0062] The antioxidant composition is astaxanthin, troxerutin and hydroxymethoxyphenyl decanone, the antioxidant composition is accurately weighed and pre-dispersed to obtain phase E;

[0063] Phase C is cooled to 60℃~65℃, and phase E is added to phase C. Homogenize for 2 minutes to obtain a low-viscosity emulsion;

[0064] The temperature is lowered to 40° C. to 45° C., and a preservative is added to obtain an emulsion loaded with an antioxidant composition.

[0065] Examples 2-3: The preparation method is the same as that of Example 1, except that the content of components in the antioxidant composition is adjusted, as shown in Table 1.

[0066] Examples 4-5: The preparation method is the same as that of Example 1, except that the content of the components in the emulsifier composition is adjusted, as shown in Table 1 for details.

[0067] Example 6: The preparation method is the same as that of Example 1, except that the emulsifier is cetearyl glucoside / cetearyl alcohol, see Table 1 for details.

[0068] Example 7: The preparation method is the same as that of Example 1, except that the emulsifier is polyglycerol-10 oleate, as shown in Table 1 for details.

[0069] Example 8: The preparation method is the same as that of Example 1, except that the emulsifier is C20-22 phosphate alcohol ester / C20-22 alcohol, see Table 1 for details.

[0070] Comparative Example 1: The preparation method is the same as that of Example 1, except that the antioxidant composition is astaxanthin and hydroxymethoxyphenyldecanone, see Table 1 for details.

[0071] Comparative Example 2: The preparation method is the same as that of Example 1, except that the antioxidant composition is astaxanthin and troxerutin, see Table 1 for details.

[0072] Comparative Example 3: The preparation method is the same as that of Example 1, except that the antioxidant composition contains astaxanthin, as shown in Table 1 for details.

[0073] Comparative Example 4: The preparation method is the same as that of Example 1, except that the antioxidant composition contains astaxanthin and 26-di-tert-butyl-4-methylphenol (BHT) in percentage by mass, as shown in Table 1 for details.

[0074] Table 1 Components of Examples 1 to 8 and Comparative Examples 1 to 4

[0075]

[0076] 2. Performance Test

[0077] 1. Stability and antioxidant properties

[0078] 1.1 Stability test: The samples were subjected to accelerated stability test at high temperature of 50°C and placed under this condition for 30 days. After 30 days, they were taken out and returned to room temperature to observe the color of the emulsion and whether the emulsion was stratified to determine the preliminary sample stability, and the product viscosity and product antioxidant performance were tested. The results are shown in Table 2.

[0079] Viscosity test method: Use BROOKFIELDDV2T viscometer for measurement. Put an appropriate amount of product into the container, put the shaft into the sample, connect the shaft to the nut, press the run button, and record the viscosity test data.

[0080] 1.2 Antioxidant performance test: The antioxidant efficacy of the product is determined by evaluating its ability to scavenge DPPH free radicals. DPPH is a stable organic free radical with a maximum absorption peak of 517nm in the visible light region. In ethanol solution, each DPPH molecule can generate a stable nitrogen-containing free radical in the solution, which has a typical purple color. When it reacts with a free radical scavenger that provides 1 electron, it generates a colorless product, which makes the typical purple color of the solution lighter. The degree of fading is stoichiometrically related to the number of paired electrons. Therefore, spectrophotometry can be used for quantitative analysis to detect the free radical scavenging situation, thereby evaluating the free radical scavenging ability of the sample.

[0081] 1) Take an equal volume (1.5 mL) of the test solution and 2 × 10 -4 mol / L DPPH solution and mix well (tube A1);

[0082] 2) Take an equal volume of anhydrous ethanol (solvent for the test substance) and 2×10 -4 mol / L DPPH solution and mix well (tube A2);

[0083] 3) Take an equal volume of anhydrous ethanol and mix it with the test solution (tube A3);

[0084] 4) After reacting in the dark for 30 minutes, measure the absorbance of tubes A1, A2, and A3 at 517 nm.

[0085] DPPH free radical scavenging rate (%) = [(A2 + A3) - A1] / A2 × 100

[0086] Data statistics: SPSS.26 was used to perform descriptive statistics on the data of the antioxidant experiment. The quantitative data were expressed as mean ± standard deviation. The data were tested for difference. If P ≤ 0.05, the difference was significant; if P > 0.05, the difference was not significant.

[0087] The test results of the emulsions of Examples 1 to 8 and Comparative Examples 1 to 4 are shown in Table 2.

[0088] Table 2 Test results of free radical scavenging rate of emulsions prepared in Examples 1 to 8 and Comparative Examples 1 to 4

[0089]

[0090]

[0091] As can be seen from Table 2, emulsifiers can affect the viscosity and stability of the product. From the results of Examples 2 and 4, it can be seen that when the emulsifier content is too low, the product viscosity decreases, and the product undergoes stratification after the stability test. From the results of Examples 2 and 5, it can be seen that when the emulsifier content is too high, the viscosity of the prepared emulsion increases, close to the viscosity of conventional emulsion products, and does not meet the viscosity requirements of the emulsion mask in this application. From the results of Examples 2 and 6 to 8, it can be seen that when one emulsifier is used alone, instability can occur. Only when the three are matched together can the product viscosity be between 1000mPa.s and 1500mPa.s and the prepared emulsion product be stable.

[0092] It can be seen from the results of Example 2 and Comparative Example 3 that when astaxanthin is used alone as an antioxidant, the free radical scavenging rate is only 6.05±0.07%. In Comparative Example 1, when astaxanthin is compounded with hydroxymethoxyphenyldecanone, the free radical scavenging rate is 13.67±0.16%. In Comparative Example 2, astaxanthin can improve the antioxidant effect of astaxanthin by compounding troxerutin, and the free radical scavenging rate is 18.85±0.06%. It can be seen from the results of Example 1 that when astaxanthin, troxerutin and hydroxymethoxyphenyldecanone are used in combination, the free radical scavenging efficiency can be significantly improved. It can be seen from the results of Example 2 and Example 1 that when the dosage of the three is adjusted, the free radical scavenging rate is significantly increased, which can reach 77.03±0.44%. It can be seen from the results of Example 3 that as the content of troxerutin and hydroxymethoxyphenyldecanone increases, the free radical scavenging rate tends to be stable, which can reach 77.22±0.75%, but there is no significant difference compared with the free radical scavenging rate of the group in Example 2 (P>0.5). Similarly, it can be seen from the results of Example 2 and Comparative Example 4 that the free radical scavenging rate of the antioxidant composition of the present application is better than the effect of the traditional antioxidant BHT. Considering the formula cost, the scheme of Example 2 is preferred.

[0093] 3. Membrane cloth adaptability test

[0094] The mask base fabric and the mask essence in the facial mask are an inseparable whole. The mask essence can help improve the performance of the membrane cloth, such as the liquid absorption of the membrane cloth. In this experiment, five kinds of membrane cloths, including protein velvet, ultrafine cotton, eucalyptus velvet, diatomaceous earth, and Manyueling S50, were selected. 25 g of the emulsion prepared in Example 2 was taken and thoroughly mixed with the five kinds of membrane cloths, and then the liquid absorption and liquid retention properties of the membrane cloths were tested.

[0095] (1) Test of membrane cloth liquid absorption performance

[0096] Test standard GB / T 24218.6-2010 Textiles - Test methods for nonwoven fabrics - Part 6 "Determination of absorbency", Sample preparation: Due to the limitations of the sample size structure, the test plan is modified based on the standard.

[0097] Cut the membrane cloth sample into 6.5×6.5cm samples, three samples each. Weigh the weighing bottle with the bottle stopper, record it as m0. Weigh the weighing bottle and the sample together, record it as m1. Immerse the sample in deionized water, take it out after 1 minute, hang it vertically and let it stand for 2 minutes, then put it in the weighing bottle and weigh it, record it as m2. Measure each sample three times and take the average value.

[0098] The liquid absorption capacity (LAC) is calculated as follows: LAC = m 2- m1 / m1-m0*100%

[0099] (2) Test of membrane cloth liquid retention performance

[0100] Cut the membrane cloth samples into 6.5×6.5cm samples, three for each type. Weigh the weighing bottle with the bottle stopper, recorded as n0. According to the actual use of the mask, immerse the sample in deionized water, take it out after 1 minute, hang it vertically and let it stand for 2 minutes, then put it in the weighing bottle and weigh it, recorded as n2. Immediately place the sample in a 37℃ oven (a stability test chamber can also be used here) and bake it for 15 minutes, take it out and weigh it, recorded as n3. Measure each sample three times and take the average value. The calculation formula for liquid retention (N) is:

[0101] N=n3-n0 / n2-n0*100%

[0102] (3) Skin feel test

[0103] Ten subjects were selected and used protein velvet, diatomaceous earth and ultra-fine cotton mask masks on Monday, Wednesday and Friday of the first week, respectively; eucalyptus velvet and Manyueling S50 mask masks were used on Monday and Wednesday of the second week. After use, the subjects scored the moisturizing feeling, absorbency and overall liking of the masks on a 5-point scale: no feeling at all (not moisturizing, not absorbed, not liked) (1 point); slight (slightly moisturizing, slightly absorbed, slightly liked) (2 points); average (average moisturizing, average absorption, average liked) (3 points); more obvious (more moisturizing, easier to absorb, more liked) (4 points); obvious (very moisturizing, very easily absorbed, liked) (5 points).

[0104] The test results are shown in Table 3.

[0105] Table 3 Test results of the compatibility test between the emulsion prepared in Example 2 of the present application and the membrane cloth

[0106] Membrane cloth performance Protein Velvet diatomite Superfine cotton Eucalyptus Manyueling S50 Liquid absorption 2608.33％ 3181.94％ 2313.64％ 2010.58％ 1850.00％ Fluid retention 77.81％ 79.13％ 77.00％ 76.75％ 75.58％ Moisturizing score 4.11±0.24 4.67±0.21 3.9±0.31 3.7±0.48 3.5±0.66 Absorbance score 4.08±0.23 4.74±0.24 4.03±0.16 3.73±0.41 3.58±0.72 Overall liking score 4.13±0.35 4.81±0.25 4.05±0.15 3.75±0.42 3.6±0.74

[0107] It can be seen from Table 3 that the emulsion prepared in Example 2 and the diatomaceous earth membrane cloth have the best matching performance, and are most popular after trial evaluation by the subjects, so the emulsion mask of the present application uses diatomaceous earth membrane cloth.

[0108] 4. Human efficacy test

[0109] Sample preparation: The emulsion prepared in Example 2 was used in combination with diatomaceous earth mask cloth to prepare a facial mask, and the amount of the emulsion mask essence in a can was 25 g.

[0110] Subject conditions: 30 subjects will be recruited this time. The selected subjects should meet the following conditions:

[0111] (1) People aged 25 to 60 with obvious dark complexion on their face.

[0112] (2) Willing to use the product on time as required during the entire study period and not use other brightening or oil-control products.

[0113] The following persons are not eligible for inclusion as subjects: pregnant, lactating, or trying-to-be-pregnant women. People who are currently taking the same type of test. People who have recently received facial treatment, cosmetic surgery, or facial surgery. People with serious chronic diseases, endocrine diseases, major infectious diseases, or facial skin diseases that affect the physiological condition of the skin or color changes that affect the evaluation. Other persons who are deemed unsuitable to participate in the trial by the trial researchers.

[0114] Test steps:

[0115] After the subjects received the samples, they were divided into two groups for an immediate test and a four-week test. The immediate test was as follows: the subjects used a facial mask (used for 20 minutes to 30 minutes), removed the mask, cleaned the face, and tested 10 minutes later. The four-week test was as follows: the subjects used a lotion mask before going to bed every Tuesday, Thursday, and Sunday. Facial skin tests were performed before the test, in the first week, the third week, and the fourth week. In each round, VISIA-CR was used to collect images of the front, left side, and right side of the subject's face, and the Dermalab skin tester was used to collect data from the subject.

[0116] Hydration of the stratum corneum: Use the Dermalab skin tester, click the "Hydration" button on the screen to enter the moisture test interface. Place the moisture probe on the test site. The moisture probe has a spring effect. When the probe is pressed on the skin, the measurement will start. The moisture measurement can be tested 8 times by default. The average value is automatically taken after the test. The data obtained after the test is obtained. The higher the value, the higher the moisture content of the stratum corneum of the skin.

[0117] Skin TEWL value: Use the Dermalab skin tester and click the "TEWL" button on the screen to enter the test interface. Press the "start" button to start the TEWL measurement. The higher the value, the worse the barrier.

[0118] Skin color: Click "Skin color" on the screen to enter the color measurement interface. Place the measuring probe on the skin and press Start to measure the skin color. During the measurement, a short light will be emitted from the probe, and the test will end when the light goes out. Each point is tested 4 times by default, and the average value is automatically obtained after the test is completed. L*a*b* represents the color of the skin, where L* reflects the brightness of the skin color, a* reflects the color change value from red to green, and b* reflects the change value from yellow to blue. The higher the L* value, the brighter the skin, the higher the a* value, the redder the skin, and the higher the b* value, the yellower the skin.

[0119] UV spots: The VISIA CR facial image analysis system was used to capture the subjects' facial images and analyze the skin UV spots. The UV spot counts on the subjects' front skin were used to evaluate the improvement of facial UV spots. The lower the UV spot counts, the fewer skin UV spots.

[0120] Skin texture: The VISIA CR facial image analysis system was used to capture the subject's facial image and analyze the skin texture. The frontal skin texture of the subject was used to evaluate the improvement in facial fineness. The lower the texture count, the finer the skin.

[0121] The test data are expressed as mean ± standard deviation. The immediate and long-term effects of the subjects using the emulsion mask are shown in Tables 4 and 5.

[0122] Table 4 Test results of immediate skin improvement using the emulsion mask prepared in this application

[0123] Before use After use Skin stratum corneum moisture (μS) 96.4±21.10 117.15±25.88 <![CDATA[Skin TEWL value ((g / m 2 / h))]]> 10.70±4.93 9.57±4.27 Skin L* Value 63.74±2.26 64.35±2.74 Skin a* value 14.29±2.35 12.74±2.50 Skin b* value 11.02±2.35 10.04±2.07

[0124] It can be seen from Table 4 that after the subjects used the emulsion mask prepared in Example 2, the moisture content of the skin keratin was immediately increased, the skin barrier was improved, the skin brightness was increased, the redness was reduced, and the yellowness was reduced.

[0125] Table 5 Skin improvement test results using the emulsion mask prepared in this application

[0126]

[0127] From Table 5, it can be seen that the emulsion mask prepared in Example 2 increased the moisture of the stratum corneum, improved the barrier ability, increased the skin brightness, reduced the redness and yellowness, improved the skin ultraviolet spots, and made the skin more delicate in the first week. After 4 weeks of use, the skin continued to improve.

[0128] The present application adopts the lotion mask prepared in Example 2 to test the skin improvement test results of some typical cases, such as Figure 1 As shown, case 1 is a 38-year-old woman. After using the product for 4 weeks, the red area of ​​her skin changed, including: Figure 1 The left picture shows the test result before use. Figure 1 The right picture in the figure shows the test results after 4 weeks of use; Figure 2 As shown in the figure, case 2 is the changes in the red area of ​​the skin of a 36-year-old woman after using the product for 4 weeks. Figure 2 The left picture shows the test result before use. Figure 2 The right picture in the figure shows the test results after 4 weeks of use; Figure 3 As shown, case 3 is a 40-year-old woman. After using the product for 4 weeks, the red area of ​​the skin changed, among which, Figure 3 The left picture shows the test result before use. Figure 3 The right picture in the figure shows the test results after 4 weeks of use; Figure 4 As shown, case 4 is a 28-year-old female. After using the product for 4 weeks, the red area of ​​the skin changed, among which, Figure 4 The left picture shows the test result before use. Figure 4 The right picture shows the test results after 4 weeks of use.

[0129] Figure 5 and Figure 6 The improvement of skin ultraviolet spots in some typical cases tested by the emulsion mask prepared in Example 2 are as follows: Figure 5 As shown, case 1 is a 40-year-old female. Figure 5 The left picture shows the test result before use. Figure 5 The right picture in the figure shows the test results after 4 weeks of use; Figure 6 As shown, case 2 is a 48-year-old female, Figure 6 The left picture shows the test result before use. Figure 6 The right picture in the figure shows the test results after 4 weeks of use.

[0130] From the above results, it can be seen that the emulsion in the emulsion mask prepared in the embodiment of the present application has good compatibility with the membrane cloth, instantly improves skin moisture and brightness, reduces skin redness, reduces skin yellowness, and long-term improves skin moisture, skin barrier, reduces skin redness, enhances skin brightness, reduces UV spots, and improves fineness.

[0131] The above is a detailed introduction to an emulsion, an emulsion mask and a preparation method loaded with an antioxidant composition provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technical personnel in this field, according to the ideas of the present application, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An emulsion loaded with an antioxidant composition, characterized in that: An antioxidant composition is included, which includes one or more of astaxanthin, troxerutin and hydroxymethoxyphenyldecanoate.

2. The emulsion loaded with an antioxidant composition according to claim 1, characterized in that: Based on the total mass of the emulsion, the mass percentage of astaxanthin in the emulsion is 0.005% to 0.2%, the mass percentage of troxerutin in the emulsion is 0.005% to 0.2%, and the mass percentage of hydroxymethoxyphenyl decanone in the emulsion is 0.01% to 0.05%.

3. The emulsion loaded with an antioxidant composition according to claim 1, characterized in that: The emulsion also includes an emulsifier composition, which includes cetearyl glucoside / cetearyl alcohol, polyglyceryl-10 oleate and C20-22 alcohol phosphate / C20-22 alcohol; the mass percentage of the cetearyl glucoside / cetearyl alcohol in the emulsion is 0.1% to 2%, the mass percentage of the polyglyceryl-10 oleate in the emulsion is 0.1% to 2%, and the mass percentage of the C20-22 alcohol phosphate / C20-22 alcohol in the emulsion is 0.2% to 1%.

4. The emulsion loaded with an antioxidant composition according to claim 1, characterized in that: The emulsion also includes an aqueous phase, which includes a polyol and a water-soluble polymer. Based on the total mass of the emulsion, the mass percentage of the polyol in the emulsion is 3% to 7%, and the mass percentage of the water-soluble polymer in the emulsion is 0.1% to 0.5%.

5. The emulsion loaded with an antioxidant composition according to claim 4, characterized in that: The polyol includes glycerol; and the water-soluble polymer includes xanthan gum.

6. The emulsion loaded with an antioxidant composition according to claim 1, characterized in that: The emulsion further comprises an oil phase, and the mass percentage of the oil phase in the emulsion is 1% to 5% based on the total mass of the emulsion; and / or, The emulsion also includes a preservative. Based on the total mass of the emulsion, the mass percentage of the preservative in the emulsion is 0.1% to 5%.

7. The emulsion loaded with an antioxidant composition according to claim 6, characterized in that: The oil phase includes squalane.

8. The emulsion loaded with an antioxidant composition according to claim 1, characterized in that: The viscosity of the emulsion is 1000 mPa·s to 1500 mPa·s.

9. A method for preparing an emulsion loaded with an antioxidant composition, characterized in that: The following steps are involved: The emulsifier composition and the oil phase are heated and dissolved at 70°C to 75°C to form a uniform phase to obtain phase A; Mix and dissolve water, polyol and water-soluble polymer at 70°C to 75°C until a uniform phase is obtained to obtain phase B; Add phase A to phase B, mix and homogenize to obtain phase C; Accurately weigh an antioxidant composition, wherein the antioxidant composition includes one or more of astaxanthin, troxerutin and hydroxymethoxyphenyl decanone, and evenly disperse the antioxidant composition to obtain phase E; The obtained phase C is cooled to 60-65°C, phase E is added to phase C, homogenized, cooled to 40-45°C, and a preservative is added to obtain an emulsion loaded with an antioxidant composition.

10. A lotion facial mask, characterized in that: The invention comprises a membrane cloth and an emulsion loaded with an antioxidant composition as claimed in any one of claims 1 to 8.

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