CN114191319A

CN114191319A - Semitransparent emulsion composition for improving skin color and preparation method thereof

Info

Publication number: CN114191319A
Application number: CN202111181314.2A
Authority: CN
Inventors: 陈雨平; 王靖
Original assignee: Jiangsu Futide Biotechnology Co ltd
Current assignee: Jiangsu Futide Biotechnology Co ltd
Priority date: 2021-10-11
Filing date: 2021-10-11
Publication date: 2022-03-18
Anticipated expiration: 2041-10-11
Also published as: CN114191319B

Abstract

The invention discloses a semitransparent emulsion composition for improving skin color and a preparation method thereof. Comprises 1.46 to 6.3 weight portions of a first whitening composition, 0.415 to 1.7 weight portions of a second whitening composition and 0.13 to 3.3 weight portions of a third whitening composition. The skin care product provided by the invention can be used for caring skin through multiple angles of moisturizing, repairing, anti-allergy, anti-inflammation, anti-oxidation and melanin generation inhibition, so that the whiteness and brightness of skin color are improved, and the whitening effect is finally achieved.

Description

Semitransparent emulsion composition for improving skin color and preparation method thereof

Technical Field

The invention belongs to the technical field of cosmetic preparation, and particularly relates to a semitransparent emulsion composition for improving skin color and a preparation method thereof.

Background

With the development of social economy, the pace of life is faster and faster, the mental stress is higher, the work and rest are irregular, the skin state is poorer, the problems of skin sensitivity and the like are increased gradually, and the attention of people to the skin is increased gradually. With the age, the skin function is gradually degraded, and a series of problems of loss of luster, dryness, dark yellow and dull complexion and the like exist.

In recent years, many whitening agents have been developed in the field of cosmetic development, and one of the most effective skin whitening agents is hydroquinone, which is prohibited from being used as a cosmetic ingredient in most countries of the world because it destroys melanocytes of the skin and induces inflammation.

Most of traditional whitening products are emulsified by adding an emulsifier, and the like, but most of the emulsifiers have certain skin irritation, cytotoxicity and the like, and easily induce the problems of skin allergy and the like, and other types of surfactants also have certain skin irritation.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.

The invention provides a translucent emulsion composition for improving skin color, which comprises 1.46-6.3 parts by weight of a first whitening composition, 0.415-1.7 parts by weight of a second whitening composition and 0.13-3.3 parts by weight of a third whitening composition;

the first whitening composition comprises 0.01-0.3 part by weight of thiotaurine, 0.2-1 part by weight of trehalose, 0.02-0.4 part by weight of calcium pantetheine sulfonate, 0.03-0.4 part by weight of hydroxyphenylpropionamide benzoic acid, 0.2-0.8 part by weight of glucosyl rutin and 1-3.5 parts by weight of purslane (Portulaca oleracea) extract;

the second whitening composition comprises nonapeptide-10.01-0.2 weight parts, nicotinamide 0.2-0.5 weight parts, 4-butyl resorcinol 0.1-0.6 weight parts, 3-o-ethyl ascorbic acid 0.1-0.3 weight parts, and glycyrrhetinic acid 0.005-0.3 weight parts;

the third whitening composition comprises 0.01-0.5 part by weight of adenosine, 0.05-2 parts by weight of Alcaligenes polysaccharide, 0.01-0.5 part by weight of beta-glucan, 0.01-0.1 part by weight of pentaerythritol tetra (bis-tert-butyl hydroxy hydrocinnamate), 0.05-0.2 part by weight of benzotriazolyl dodecyl p-cresol and 0.5-2 parts by weight of Arabic gum;

the balance of water to 100 parts by weight.

As a preferred embodiment of the translucent emulsion composition for improving skin color of the present invention: the emulsion-type acrylate copolymer also comprises an emulsion-type thickening component, wherein the emulsion-type thickening component comprises 0.1-0.5 part by weight of acrylic acid (ester)/C10-30 alkanol acrylate cross-linked polymer, 0.04-0.2 part by weight of acryloyl dimethyl tauryl/VP copolymer and 0.1-0.3 part by weight of hydrogenated phosphatidylcholine.

As a preferred embodiment of the translucent emulsion composition for improving skin color of the present invention: the skin-moistening cream also comprises a skin-moistening component, wherein the skin-moistening component comprises 1-6 parts by weight of butanediol, 1-5 parts by weight of glycerol, 1-5 parts by weight of 1, 2-pentanediol, 202-3 parts by weight of methyl glucitol polyether, 260.5-1.5 parts by weight of glycerol polyether, 0.1-0.4 part by weight of caprylic/capric triglyceride and 1-2 parts by weight of polydimethylsiloxane.

As a preferred embodiment of the translucent emulsion composition for improving skin color of the present invention: the first whitening composition consists of 0.05 to 0.1 weight part of thiotaurine, 0.3 to 0.6 weight part of trehalose, 0.1 to 0.3 weight part of calcium pantetheine sulfonate, 0.1 to 0.3 weight part of hydroxyphenylpropionamide benzoic acid, 0.3 to 0.6 weight part of glucosyl rutin and 1.98 to 2.5 weight parts of purslane (Portulaca oleracea) extract; the second whitening composition consists of nonapeptide-10.1-0.15 weight parts, nicotinamide 0.25-0.4 weight parts, 4-butyl resorcinol 0.25-0.5 weight parts, 3-o-ethyl ascorbic acid 0.13-0.2 weight parts, and glycyrrhetinic acid 0.05-0.2 weight parts; the third whitening composition comprises 0.1-0.2 part by weight of adenosine, 0.1-0.2 part by weight of Alcaligenes polysaccharide, 0.07-0.1 part by weight of beta-glucan, 0.03-0.05 part by weight of pentaerythritol tetra (di-tert-butyl hydroxy hydrocinnamate), 0.1-0.15 part by weight of benzotriazolyl dodecyl p-cresol and 0.6-1 part by weight of gum arabic.

As a preferred embodiment of the translucent emulsion composition for improving skin color of the present invention: also comprises 0.01 to 0.2 portion of chelating agent; 0.1-0.5 part of preservative.

As a preferred embodiment of the translucent emulsion composition for improving skin color of the present invention: the preservative comprises p-hydroxyacetophenone and caprylic glyceride, wherein the addition amount of the p-hydroxyacetophenone is 0.1-0.3 part by weight, and the addition amount of the caprylic glyceride is 0.03-0.05 part by weight.

As another aspect of the present invention, the present invention also provides a method for preparing a translucent emulsion composition for improving skin color, which consists of the steps of,

step 1: uniformly mixing 0.1-0.5 part by weight of acrylic acid (ester)/C10-30 alkanol acrylate cross-linked polymer, chelating agent, 0.04-0.2 part by weight of ammonium acryloyl dimethyl taurate/VP copolymer and deionized water, homogenizing, and heating to 80-85 ℃;

step 2: sequentially adding 0.01-0.5 weight part of adenosine, 0.05-2 weight parts of Alcaligenes polysaccharide, 1-6 weight parts of butanediol and 0.01-0.5 weight part of beta-glucan, and mixing uniformly, wherein the temperature of the mixture is maintained at 80-85 ℃;

and step 3: preheating 0.1-0.4 part by weight of caprylic/capric triglyceride and 0.01-0.1 part by weight of pentaerythritol tetrakis (bis-tert-butyl hydroxyhydrocinnamate) to 85-90 ℃ respectively to be heated and completely dissolved, mixing 1-5 parts by weight of glycerol, 0.1-0.3 part by weight of hydrogenated phosphatidylcholine and 1-5 parts by weight of 1, 2-pentanediol, preheating to 50-55 ℃ to be dissolved, and then adding the caprylic/capric triglyceride and the pentaerythritol tetrakis (bis-tert-butyl hydroxyhydrocinnamate) into the mixture of glycerol, hydrogenated phosphatidylcholine and 1, 2-pentanediol in sequence and uniformly mixing; then adding 1-2 parts by weight of polydimethylsiloxane and 0.05-0.2 part by weight of benzotriazolyl dodecyl p-cresol, and uniformly mixing to keep the temperature of the mixture at 50-55 ℃;

and 4, step 4: cooling the mixture obtained in the step 2 to 55-75 ℃, adding the mixture with the temperature of 50-55 ℃ obtained in the step 3 at the stirring speed of 4000-;

and 5: cooling the mixture obtained in the step (4) to 50-55 ℃, adding a preservative, and stirring and mixing uniformly;

step 6: cooling the mixture obtained in the step 5 to 45 ℃; dissolving 2-3 parts by weight of methyl glucitol polyether-20, 0.5-1.5 parts by weight of glyceryl polyether-26, 0.01-0.3 part by weight of thiotaurine, 0.2-1 part by weight of trehalose, 0.02-0.4 part by weight of calcium pantetheine sulfonate, 0.03-0.4 part by weight of hydroxyphenylpropionamide benzoic acid, 0.2-0.8 part by weight of glucosylrutin, and 1-3.5 parts by weight of purslane (Portulaca OLERACEA) extract in 5-20 parts by weight of water, adding the mixture obtained in the step 5, and uniformly mixing;

and 7: cooling the mixture obtained in the step 6 to 40 ℃, dissolving 0.01-0.2 part by weight of nonapeptide-1, 0.2-0.5 part by weight of nicotinamide, 0.1-0.6 part by weight of 4-butyl resorcinol, 0.1-0.3 part by weight of 3-o-ethyl ascorbic acid, 0.005-0.3 part by weight of glycyrrhetinic acid and 0.5-2 parts by weight of gum arabic in 5-20 parts by weight of water, adding the mixture obtained in the step 6, stirring and mixing uniformly, adjusting the pH value to 5.0-5.2, filtering a 200-mesh filter screen and discharging; the total weight portion of all the raw materials in the preparation process is 100.

As a preferred embodiment of the method for preparing a translucent emulsion composition for improving skin color according to the present invention: in step 1, the homogenization is performed at 3000rpm for 1-5min at 2500-.

As a preferred embodiment of the method for preparing a translucent emulsion composition for improving skin color according to the present invention: in step 4, the homogenization is carried out at a speed of 5000-5500 rpm.

As a preferred embodiment of the method for preparing a translucent emulsion composition for improving skin color according to the present invention: in the step 4, the temperature of the mixture obtained in the step 2 is reduced to 55-75 ℃, namely the temperature of the mixture obtained in the step 2 is reduced to 65-70 ℃.

The invention has the beneficial effects that: the skin care product provided by the invention can be used for caring skin through multiple angles of moisturizing, repairing, anti-allergy, anti-inflammation, anti-oxidation and melanin generation inhibition, so that the whiteness and brightness of skin color are improved, and the whitening effect is finally achieved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Wherein:

FIG. 1 shows a translucent emulsion obtained in example 1.

FIG. 2 is a graph of the transparency of the resulting emulsion at different mean rates.

FIG. 3 shows the transparency of the resulting emulsion at different emulsification temperatures.

Fig. 4 shows the ITA ° test results.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with examples are described in detail below.

Example 1:

the formula of the translucent whitening emulsion composition comprises the following components:

the above raw materials are all commercial raw materials.

The preparation method of the semitransparent whitening composition comprises the following steps:

step 1: uniformly mixing acrylic acid (ester)/C10-30 alkanol acrylate cross-linked polymer, EDTA disodium, acryloyl dimethyl ammonium taurate/VP copolymer and deionized water which are raw materials of a P1 group, homogenizing at 3000rpm for 5min, heating to 85 ℃, and preserving heat for 20 min;

step 2: sequentially adding adenosine which is a raw material of P2 group, polysaccharide which is an alcaligenes, butanediol and beta-glucan which are raw materials of P3 group into the mixed raw materials of P1 group, uniformly mixing, and maintaining the temperature of the mixture at 85 ℃;

and step 3: respectively preheating octoic acid/capric acid triglyceride and pentaerythritol tetra (di-tert-butyl hydroxy hydrocinnamate) ester which are raw materials in a P5 group to 90 ℃, heating for 10min to completely dissolve the octoic acid/capric acid triglyceride and the pentaerythritol tetra (di-tert-butyl hydroxy hydrocinnamate) ester, mixing glycerol, hydrogenated phosphatidylcholine and 1, 2-pentanediol which are raw materials in a P4 group, preheating to 50 ℃ to dissolve the glycerol, the hydrogenated phosphatidylcholine and the 1, 2-pentanediol, and then sequentially adding the octoic acid/capric acid triglyceride and the pentaerythritol tetra (di-tert-butyl hydroxy hydrocinnamate) ester which are raw materials in a P5 group to the raw materials in a P4 group, and uniformly mixing; then adding P6 raw materials of polydimethylsiloxane and benzotriazolyl dodecyl P-cresol, uniformly mixing, and keeping the temperature of the mixture at 55 ℃;

and 4, step 4: cooling the mixture obtained in the step (2) to 70 ℃, adding the mixture obtained in the step (3) with the temperature of 55 ℃ at the stirring speed of 5000rpm, homogenizing at 5000rpm for 5min, and defoaming;

and 5: cooling the mixture obtained in the step (4) to 55 ℃, adding P7 group raw materials of P-hydroxyacetophenone and glyceryl caprylate, and uniformly mixing;

step 6: dissolving P8 group raw materials of methyl glucitol polyether-20, glyceryl polyether-26, thiotaurine, trehalose, calcium pantetheine sulfonate, hydroxyphenyl propionamide benzoic acid, glucosyl rutin and herba Portulacae (Portulaca OLERACEA) extract in 10 weight parts of deionized water; cooling the mixture obtained in the step 5 to 45 ℃; adding the P8 group raw materials dissolved in deionized water into the mixture obtained in the step 5, and uniformly mixing;

and 7: cooling the mixture obtained in step 6 to 40 ℃, and dissolving the P9 group raw materials of nonapeptide-1, nicotinamide, 4-butyl resorcinol, 3-o-ethyl ascorbic acid, glycyrrhetinic acid and gum arabic in 10 parts by weight of deionized water; and (3) adding the P9 group raw materials dissolved in the deionized water into the mixture obtained in the step (6), uniformly mixing, adjusting the pH value to 5.0-5.2, filtering by a 200-mesh filter screen, and discharging.

The emulsion was translucent in appearance and tested for visco, 1960. cps.

The difference of human skin color mainly depends on the content of skin epidermal melanin, the blood circulation condition of dermis, the thickness of stratum corneum and the like, and the main factors causing poor dark yellow color of skin are as follows: melanin is formed and accumulated in large quantities, skin oxidation, excessive deposition of keratinocytes, skin inflammation, etc. Nonapeptide-1 is a biomimetic peptide, competitively binds with MC1 receptor on melanocyte, prevents tyrosinase from being further activated to generate melanin, further reduces melanin production, and has effects of homogenizing and brightening skin color. Adenosine has effects of regulating skin, resisting aging, preventing wrinkle, interfering synthesis of virus nucleic acid, and has antibacterial and antiinflammatory effects. The Alcaligenes polysaccharide has effects of keeping moisture, assisting emulsification, and relieving. The thiotaurine can prevent lipid peroxidation on the surface of skin, can eliminate free radicals, and has antioxidant effect. The trehalose can form a layer of protective film on the cell surface layer under the environments of high temperature, dryness, strong ultraviolet rays and the like, not only can keep the original nutrition and moisture of the skin, but also can nourish the skin cells, simultaneously can avoid sunburn of the skin and reduce melanin deposition. Calcium pantetheine sulfonate is a vitamin B5 derivative, has an undefined whitening mechanism, and has been shown to inhibit melanin generation. The hydroxyphenylpropionamide benzoic acid can inhibit the degradation of keratinized cell nucleus factor NF-kB-alpha directly related to inflammation, prevent the phosphorylation of p65 protein subunit on the cell nucleus factor NF-kB, and block the generation process of cell inflammation; reducing the occurrence of inflammatory immune response and the reaction of neurodermatitis in the skin. Glucosyl rutin has excellent antioxidant and ultraviolet absorbing effects. The herba Portulacae extract can reduce secretion of inflammatory factor interleukin, has broad-spectrum antibacterial property and good oxygen radical scavenging ability, and also has moisture keeping effect. The nicotinamide has multiple functions, can reduce the generation and the precipitation of melanin, can prevent the melanin from migrating to an epidermal layer, has certain effects of accelerating the metabolism of a horny layer and resisting aging, and can repair the damaged horny layer lipid barrier and improve the skin resistance. 4-butyl resorcinol is a tyrosinase inhibitor and can inhibit the production of melanin. Glycyrrhetinic acid has antiinflammatory, antiallergic, bacterial reproduction inhibiting, and melanin production inhibiting effects.

The skin care product provided by the invention can be used for caring skin through multiple angles of moisturizing, repairing, anti-allergy, anti-inflammation, anti-oxidation and melanin generation inhibition, so that the whiteness and brightness of skin color are improved, and the whitening effect is finally achieved.

As the traditional surfactant serving as an emulsifier mostly has skin irritation, the emulsion added with the raw materials is easily applied to the facial skin for a long time to cause the problems of skin sensitivity, inflammation and the like, and further influences the skin color, and the traditional surfactant and other emulsifiers are not added into the whitening composition for improving the skin color. Instead, the P4 group raw material is used for replacing the traditional surfactant emulsifier, and the P4 group raw material is mixed with the oil phase P5 and the P6 group raw material and added into the water phase obtained in the step 2 to realize emulsification. It is worth mentioning that in the emulsifying formula of the invention, the emulsification can be smoothly realized even if the dosage of the hydrogenated phosphatidylcholine, the caprylic/capric triglyceride and the pentaerythritol tetra (di-tert-butyl hydroxy hydrocinnamic acid) ester is small, thereby greatly saving the production cost. The translucent emulsion obtained by the present invention is shown in FIG. 1.

To investigate the effect of the homogenization conditions of step 4 on the transparency of the emulsion, the transparency of the resulting emulsion was measured by setting the homogenization rate to 2000rpm, 3000rpm, 4000rpm, 5000rpm, and 6000rpm, respectively. The experimental result is shown in fig. 2, and it is seen from fig. 2 that the homogenization rate affects the emulsification effect and further affects the transparency of the emulsion, when the emulsification speed is low, the emulsion droplet size is large, the emulsification effect is poor, the solution is transparent, as the emulsification speed increases, the emulsion droplet size gradually decreases, the emulsification effect is enhanced, the solution becomes semitransparent, when the emulsification speed is too high, the emulsion particle size is broken, the emulsion particle size further decreases, the emulsification effect is affected, and thus the transparency of the emulsion is improved. Preferably, the emulsion has the best emulsifying effect at about 5000rpm, and the emulsion is translucent. (emulsion transparency measuring method: transparency of emulsion is measured by spectrophotometry, and transparency of emulsion is measured at 600 nm).

To investigate the influence of the emulsification temperature on the emulsification effect, the emulsification temperature in step 4 was adjusted to 90 ℃, 70 ℃ and 50 ℃, respectively, and the emulsion transparency was measured. As shown in FIG. 3, the emulsification at 70 ℃ is the best to obtain a translucent emulsion, probably because too high a temperature will cause damage to the P4 group material, while lower a temperature will reduce the sufficient dissolution and emulsification effect of the material molecules.

Comparative example:

the whitening formulations of comparative examples 1-4 are shown in table 1:

TABLE 1

Comparative example 5:

step 1: uniformly mixing acrylic acid (ester)/C10-30 alkanol acrylate cross-linked polymer, disodium EDTA, ammonium acryloyl dimethyl taurate/VP copolymer and deionized water which are raw materials of a P1 group, homogenizing at 3000rpm for 5min, and heating to 85 ℃;

and step 3: respectively preheating P5 group raw materials of caprylic acid/capric acid triglyceride and pentaerythritol tetra (di-tert-butyl hydroxy hydrocinnamate) to 90 ℃, heating for 10min to completely dissolve the caprylic acid/capric acid triglyceride and the pentaerythritol tetra (di-tert-butyl hydroxy hydrocinnamate), mixing P4 group raw materials of glycerin, water, hydrogenated phosphatidylcholine and 1, 2-pentanediol, preheating to 50 ℃ to dissolve the glycerin, and then sequentially adding P5 group raw materials of caprylic acid/capric acid triglyceride and pentaerythritol tetra (di-tert-butyl hydroxy hydrocinnamate) into P4 group raw materials, and uniformly mixing; then adding P6 raw materials of polydimethylsiloxane and benzotriazolyl dodecyl P-cresol, uniformly mixing, and keeping the temperature of the mixture at 55 ℃;

and 5: cooling the mixture obtained in the step (4) to 55 ℃, adding P7 groups of raw materials of P-hydroxyacetophenone and glyceryl caprylate, and stirring and mixing uniformly;

step 6: cooling the mixture obtained in the step 5 to 45 ℃; adding P8 group raw materials of methyl glucitol polyether-20, glyceryl polyether-26, thiotaurine, trehalose, pantetheine sulfonate calcium, hydroxyphenyl propionamide benzoic acid, glucosyl rutin, and herba Portulacae (Portulaca OLERACEA) extract into the mixture obtained in step 5, and stirring and mixing uniformly;

and 7: cooling the mixture obtained in the step 6 to 40 ℃, adding the P9 group raw materials of nonapeptide-1, nicotinamide, 4-butyl resorcinol, 3-o-ethyl ascorbic acid, glycyrrhetinic acid and gum arabic into the mixture obtained in the step 6, stirring and mixing uniformly, adjusting the pH to 5.0-5.2, filtering by a 200-mesh filter screen and discharging.

And (3) testing results:

and (3) emulsion stability test: placing at 48 deg.C for 15d, then placing at-8 deg.C for 15d, circulating for 3 times, and observing whether the color of emulsion has obvious difference or not and whether the emulsion is layered or not. The test results are shown in Table 2

TABLE 2

	Emulsion stratification	Significant difference in emulsion color
			Example 1	Whether or not	Whether or not
Comparative example 4	Is that	Whether or not

Experimental results show that the selection of the thickening agent can influence the stability of the emulsion, one of the thickening agents in comparative example 4 is carbomer, the stability of the emulsion is reduced compared with that in example 1, and probably because the acrylic acid (ester)/C10-30 alkanol acrylate cross-linked polymer can be matched with other emulsification systems to play a role in emulsification assistance, so that the stability of the emulsion is improved.

And (3) testing the whitening effect:

the instrument comprises the following steps: skin color test probe Skin-Colorimrtre CL400, CK company, germany.

The ITA value represents the skin brightness, and the larger the value is, the more white the color is, and the calculation formula is as follows:

ITA°＝[Arctan(L^*-50/b^*)]×180/π

wherein L is^*As skin lightness value, b^*Representing the blue-yellow colour.

And (3) testing environment: the temperature is 25 +/-1 ℃ and the humidity is 50% +/-10%.

Subject: searching a plurality of volunteers, washing the face, measuring the L value of the face, selecting volunteers with closer L values, counting 40 persons, randomly dividing the volunteers into 5 groups (an example 1 sample group, a control example 2 sample group, a control example 3 sample group and a control example 5 sample group), 8 persons in each group, and the age: 25-45 years old women, selecting the conditions: healthy people with no abnormal skin of the tested part and no other skin diseases.

Test area: the face.

The test method comprises the following steps: the test subject did not use cosmetics three days before the test, and the test sample was evenly applied to the right side face and the left side face twice a day in the morning and at night at the beginning of the testThe part was used as a blank control for 6 weeks, and the skin brightness values L were measured after 6 weeks^*And calculate the ITA °, before each test, the subject needs to wash his face and then perform the test. The ITA test results are shown in FIG. 4.^*p<0.05，^**p<0.01。

In the comparative example 2, no antioxidant, anti-inflammatory and anti-allergy components are added, the dosage of the whitening agent is increased, and although the whitening effect is a certain whitening effect, the whitening effect is weaker than that in the example 1. The comparative example 3 is a whitening combination system of salicylic acid, beta-arbutin and ellagic acid, and experimental results show that the whitening effect of the whitening combination in the example 1 is superior to that of the combination of salicylic acid, beta-arbutin and ellagic acid, probably because the bioavailability of ellagic acid is relatively low, salicylic acid has certain skin irritation, and the whitening effect of the whole raw material combination in the comparative example 3 is inferior to that of the combination in the example 1. In addition, the raw materials of the P8 and P9 groups are dissolved in water and then added into the emulsion system in the example 1, and the whitening effect is better than that of the comparative example 5 in which the raw materials of the P8 and P9 groups are directly added into the emulsion system.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims

1. A translucent emulsion composition for improving skin tone characterized by: comprises 1.46 to 6.3 weight portions of a first whitening composition, 0.415 to 1.7 weight portions of a second whitening composition and 0.13 to 3.3 weight portions of a third whitening composition;

the balance of water to 100 parts by weight.

2. The translucent skin tone improving emulsion composition according to claim 1, wherein: the emulsion-type acrylate copolymer also comprises an emulsion-type thickening component, wherein the emulsion-type thickening component comprises 0.1-0.5 part by weight of acrylic acid (ester)/C10-30 alkanol acrylate cross-linked polymer, 0.04-0.2 part by weight of acryloyl dimethyl tauryl/VP copolymer and 0.1-0.3 part by weight of hydrogenated phosphatidylcholine.

3. The translucent skin tone improving emulsion composition according to claim 2, wherein: the skin-moistening cream also comprises a skin-moistening component, wherein the skin-moistening component comprises 1-6 parts by weight of butanediol, 1-5 parts by weight of glycerol, 1-5 parts by weight of 1, 2-pentanediol, 202-3 parts by weight of methyl glucitol polyether, 260.5-1.5 parts by weight of glycerol polyether, 0.1-0.4 part by weight of caprylic/capric triglyceride and 1-2 parts by weight of polydimethylsiloxane.

4. The translucent skin tone improving emulsion composition according to claim 1, wherein: the first whitening composition consists of 0.05 to 0.1 weight part of thiotaurine, 0.3 to 0.6 weight part of trehalose, 0.1 to 0.3 weight part of calcium pantetheine sulfonate, 0.1 to 0.3 weight part of hydroxyphenylpropionamide benzoic acid, 0.3 to 0.6 weight part of glucosyl rutin and 1.98 to 2.5 weight parts of purslane (Portulaca OLERACEA) extract; the second whitening composition consists of nonapeptide-10.1-0.15 weight parts, nicotinamide 0.25-0.4 weight parts, 4-butyl resorcinol 0.25-0.5 weight parts, 3-o-ethyl ascorbic acid 0.13-0.2 weight parts, and glycyrrhetinic acid 0.05-0.2 weight parts; the third whitening composition comprises 0.1-0.2 part by weight of adenosine, 0.1-0.2 part by weight of Alcaligenes polysaccharide, 0.07-0.1 part by weight of beta-glucan, 0.03-0.05 part by weight of pentaerythritol tetra (di-tert-butyl hydroxy hydrocinnamate), 0.1-0.15 part by weight of benzotriazolyl dodecyl p-cresol and 0.6-1 part by weight of gum arabic.

5. The translucent skin tone improving emulsion composition according to any one of claims 1 to 4, wherein: also comprises 0.01 to 0.2 portion of chelating agent; 0.1-0.5 part of preservative.

6. The translucent skin tone improving emulsion composition according to claim 5, wherein: the preservative comprises p-hydroxyacetophenone and caprylic glyceride, wherein the addition amount of the p-hydroxyacetophenone is 0.1-0.3 part by weight, and the addition amount of the caprylic glyceride is 0.03-0.05 part by weight; the chelating agent comprises EDTA-2 Na.

7. A method of preparing a translucent emulsion composition for improving skin tone characterized by: the method comprises the following steps of (1),

8. The method of preparing a translucent emulsion composition for improving skin color according to claim 7, wherein: in step 1, the homogenization is performed at 3000rpm for 1-5min at 2500-.

9. The method of preparing a translucent emulsion composition for improving skin color according to claim 7 or 8, characterized in that: in step 4, the homogenization is carried out at a speed of 5000-5500 rpm.

10. The method of preparing a translucent emulsion composition for improving skin color according to claim 7 or 8, characterized in that: in the step 4, the temperature of the mixture obtained in the step 2 is reduced to 55-75 ℃, namely the temperature of the mixture obtained in the step 2 is reduced to 65-70 ℃.