Moisturizing whitening body milk containing composite plant extract and preparation method thereof

Abstract

The present application relates to a moisturizing and whitening body milk containing a composite plant extract and a preparation method thereof, and belongs to the technical field of cosmetics. The composite plant extract is prepared by pretreatment, compounding, fermentation and ultrasonic extraction of Dendrobium nobile Lindl. flowers and Dendrobium nobile Lindl. leaves, and combined with ginseng extract, salvia miltiorrhiza root extract and schizonia parilis fermentation technology, which significantly improves the stability of active ingredients. The moisturizing and whitening body milk formula contains the composite plant extract, supplemented with emollients, whitening agents, thickeners, colorants and other components, and is prepared by step-by-step mixing and homogenization of the water phase and the oil phase. The body milk of the present application has excellent moisturizing performance and whitening effect, the composition has high stability, no delamination phenomenon during long-term storage, and the preparation process is simple, suitable for industrial production.

Description

Technical Field

[0001] This invention belongs to the field of cosmetic technology and relates to a moisturizing and whitening body lotion containing compound plant extracts and its preparation method. Background Technology

[0002] With the changing climate cycles, the periodic fluctuations in solar radiation and atmospheric moisture content significantly impact human epidermal tissue. This is particularly pronounced across different geographical regions—the intense ultraviolet radiation in the south and the low humidity in the north can both weaken the stratum corneum's water-retention capacity, inducing epidermal dehydration. Initially, this damage to the epidermal barrier function may manifest as redness and microcracks; continued dehydration can progress to scaly peeling, and in severe cases, the cracks can penetrate the basal layer of the epidermis and invade the dermis, causing secondary infectious damage. Therefore, most existing moisturizing body lotions work by reducing skin contact with air or increasing the time moisture remains on the skin's surface, thus providing some moisturizing effect.

[0003] Currently available moisturizing and whitening body lotions generally suffer from poor stability of active ingredients and insufficient moisturizing longevity. Traditional plant extracts often suffer from loss of effective ingredients due to inadequate extraction processes. For example, some products use ordinary water or alcohol extraction processes, which easily lead to oxidation and degradation of active ingredients, affecting product efficacy; other moisturizing formulas rely on moisturizers, which may cause skin irritation. In addition, the compatibility between plant extracts and the formula matrix in existing technologies is poor, easily leading to lotion separation and affecting the user experience. To address these issues, this invention optimizes the release and stability of active ingredients through a complex plant fermentation technology and a multi-step ultrasonic extraction process, and combines it with a specific emollient and thickener system to develop a body lotion that combines highly effective moisturizing, whitening, and stability, filling the gaps in existing technologies. Summary of the Invention

[0004] The purpose of this invention is to provide a moisturizing and whitening body lotion containing compound plant extracts and its preparation method, which has the characteristics of good moisturizing and whitening effects.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A compound plant extract, said compound plant extract being prepared by the following method:

[0007] W1. Pre-treat the flowers of Dendrobium nobile and the leaves of Dendrobium simonii;

[0008] W2. By weight, the pretreated Dendrobium nobile flowers and Dendrobium simonii leaves are mixed in a ratio of 3-7:2-5, ground into powder, to obtain a mixed powder;

[0009] W3. Mix 8-10 parts of mixed powder, 1-3 parts of ginseng extract, and 4-7 parts of salvia miltiorrhiza root extract evenly, and inoculate with bacterial solution for fermentation;

[0010] W4. After fermentation is complete, steam is introduced to raise the temperature to 85℃ and maintain it for 15-20 minutes to obtain the compound plant fermentation product.

[0011] W5. Take the compound plant fermentation product, mix it with 3 times the volume of distilled water, extract it by ultrasonication, cycle it 3 times, combine the filtrates, and concentrate it to obtain the compound plant fermentation product extract.

[0012] W6. Freeze-dry the compound plant ferment extract to obtain the compound plant extract.

[0013] As a preferred technical solution of the present invention, the pretreatment described in W1 refers to breaking the flowers of Dendrobium nobile and the leaves of Dendrobium simonii into 1-2cm pieces, passing steam through them to raise the temperature to 70-80℃, moistening them for 15-20 minutes, and then drying them to a moisture content of 5-10%.

[0014] As a preferred embodiment of the present invention, the inoculation solution mentioned in W3 refers to an inoculation concentration of 1×10⁻⁵% at a ratio of 10-15% of the material weight. 8 -5×10 8 A CFU / mL suspension of *Porphyra yezoensis* was stirred thoroughly and then fermented.

[0015] As a preferred embodiment of the present invention, the fermentation is carried out at a temperature of 27-30°C for 7-9 days.

[0016] As a preferred technical solution of the present invention, step W5 specifically involves the following steps: by mass fraction, firstly, the compound plant fermentation product is mixed with distilled water at a ratio of 1:3, ultrasonically extracted at 35-45℃ for 15 minutes, and then filtered to obtain a first filtrate and a first filter residue; then, the first filter residue is mixed with distilled water at a ratio of 1:3, ultrasonically extracted at 35-45℃ for 15 minutes, and then filtered to obtain a second filtrate and a second filter residue; finally, the second filter residue is mixed with distilled water at a ratio of 1:3, ultrasonically extracted at 35-45℃ for 10 minutes, and then filtered to obtain a third filtrate and a third filter residue; the first filtrate, the second filtrate, and the third filtrate are mixed and concentrated to a volume fraction of 10% to obtain a compound plant fermentation product extract.

[0017] A composite plant extract prepared by the method described above.

[0018] A moisturizing and whitening body lotion containing a compound plant extract, comprising one of the aforementioned compound plant extracts.

[0019] As a preferred embodiment of the present invention, the product further comprises the following components by weight: 1-2 parts of emollient, 4-6 parts of whitening agent, 0.2-0.5 parts of colorant, 0.5-1 part of thickener, 0.05-0.1 parts of pH adjuster, 0.3-0.5 parts of preservative, and 80-90 parts of water.

[0020] As a preferred embodiment of the present invention, the emollient is composed of 1-1.5 parts of ethylhexyl palmitate and 0.2-0.5 parts of cyclohexylsiloxane by weight.

[0021] The whitening agent is composed of 0.1-0.3 parts niacinamide and 0.2-0.6 parts glutathione;

[0022] The colorant is titanium dioxide;

[0023] The thickener is composed of 0.5 parts lecithin and 0.2 parts xanthan gum;

[0024] The pH adjuster is triethanolamine;

[0025] The preservative consists of 0.3 parts of methylparaben and 0.2 parts of bis(hydroxymethyl)imidazolidinyl urea.

[0026] A method for preparing a moisturizing and whitening body lotion containing a complex plant extract, as described above, includes the following steps, by weight:

[0027] X1. Mix water, 6-9 parts of compound plant extract, whitening agent, and thickener, and stir evenly at 70°C to obtain an aqueous mixture;

[0028] X2. Mix the colorant, emollient, and preservative and stir evenly at 70°C to obtain an oil phase mixture;

[0029] X3. Stir the aqueous phase mixture into the oil phase mixture, homogenize at 75°C, add pH adjuster and vacuum stir to homogenize, keep warm and stir to obtain emulsified mixture;

[0030] X4. After cooling the emulsified mixture to 40°C, discharge the material to obtain a moisturizing and whitening body lotion containing compound plant extracts.

[0031] The beneficial effects of this invention are:

[0032] (1) The composite plant composition prepared by the process of the present invention has good stability. The composite plant extract obtained by the fermentation process of Fomitopsis thunbergii and multi-step ultrasonic extraction has active ingredients that interact with each other when dissolved in water, and is not easy to separate into layers, thus bringing good stability. When applied to moisturizing and whitening body lotion, it can form a long-lasting water-locking film and improve the moisturizing effect of the body lotion.

[0033] (2) It has a good moisturizing effect. The compound plant extract obtained by fermentation in the formula works synergistically with the emollient to form a long-lasting water-locking film, which significantly improves the moisturizing effect of the body lotion. Detailed Implementation

[0034] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with embodiments, is provided below.

[0035] To avoid unnecessary details, unless otherwise specified, all items used in the following examples are commercially available products, and all methods used are conventional methods unless otherwise specified.

[0036] Ginseng extract: purchased from Xi'an Chengxiang Biotechnology Co., Ltd.

[0037] Salvia miltiorrhiza root extract: purchased from Shaanxi Langde Biotechnology Co., Ltd.

[0038] Fomitopsis pinnatifida: purchased from Lanzhou Waterles Biotechnology Co., Ltd.

[0039] Codonopsis pilosula extract: purchased from Xi'an Tianlei Pharmaceutical Technology Co., Ltd.

[0040] Panax notoginseng extract: purchased from Shaanxi Angsheng Biomedical Technology Co., Ltd.

[0041] Example 1

[0042] A compound plant extract, said compound plant extract being prepared by the following method:

[0043] W1. Pre-treat the flowers of Dendrobium nobile and the leaves of Dendrobium simonii. Crush the flowers and leaves of Dendrobium nobile into 1cm pieces, pass steam through them, raise the temperature to 70℃, moisten them for 15 minutes, and then dry them to a moisture content of 5%.

[0044] W2. By weight, the pretreated Dendrobium nobile flowers and Dendrobium simonii leaves are mixed in a 3:2 ratio, ground into powder, to obtain a mixed powder;

[0045] W3. Mix 8 parts of the mixed powder, 1 part of ginseng extract, and 4 parts of salvia miltiorrhiza root extract evenly, and inoculate at a concentration of 1×10⁻⁶ at a ratio of 10% of the substrate weight. 8 A CFU / mL suspension of *Porphyra yezoensis* was stirred evenly and fermented at 27°C for 7 days.

[0046] W4. After fermentation is complete, steam is introduced to raise the temperature to 85°C and maintain it for 15 minutes to obtain the compound plant fermentation product.

[0047] W5. By mass, first mix the compound plant fermentation product with distilled water at a ratio of 1:3, extract by ultrasonication at 35°C for 15 min and filter to obtain the first filtrate and the first filter residue; then mix the first filter residue with distilled water at a ratio of 1:3, extract by ultrasonication at 35°C for 15 min and filter to obtain the second filtrate and the second filter residue; finally, mix the second filter residue with distilled water at a ratio of 1:3, extract by ultrasonication at 35°C for 10 min and filter to obtain the third filtrate and the third filter residue. Mix the first filtrate, the second filtrate and the third filtrate and concentrate to 10% by volume to obtain the compound plant fermentation product extract.

[0048] W6. Freeze-dry the compound plant ferment extract to obtain the compound plant extract.

[0049] A method for preparing a moisturizing and whitening body lotion containing the above-mentioned compound plant extracts, comprising the following steps by weight:

[0050] X1. Mix 80 parts water, 6 parts compound plant extract, 4 parts whitening agent composed of 0.1 parts nicotinamide and 0.2 parts glutathione, and 0.5 parts thickener composed of 0.5 parts lecithin and 0.2 parts xanthan gum, and stir evenly at 70°C to obtain an aqueous mixture;

[0051] X2. Mix 0.2 parts of titanium dioxide, 1 part of emollient composed of 1 part of ethylhexyl palmitate and 0.2 parts of cyclohexylsiloxane, and 0.3 parts of preservative composed of 0.3 parts of methylparaben and 0.2 parts of bis(hydroxymethyl)imidazolidinyl urea, and stir evenly at 70°C to obtain an oil phase mixture;

[0052] X3. Add the aqueous phase mixture to the oil phase mixture, homogenize at 75°C, add 0.05 parts of triethanolamine and homogenize under vacuum, keep warm and stir to obtain an emulsified mixture;

[0053] X4. After cooling the emulsified mixture to 40°C, discharge the material to obtain a moisturizing and whitening body lotion containing compound plant extracts.

[0054] Example 2

[0055] A compound plant extract, said compound plant extract being prepared by the following method:

[0056] W1. Pre-treat the flowers of Dendrobium nobile and the leaves of Dendrobium simonii. Crush the flowers and leaves of Dendrobium nobile into 1cm pieces, pass steam through them, raise the temperature to 75℃, moisten them for 17 minutes, and then dry them to a moisture content of 8%.

[0057] W2. By weight, the pretreated Dendrobium nobile flowers and Dendrobium simonii leaves are mixed in a ratio of 5:4, ground into powder, to obtain a mixed powder;

[0058] W3. Mix 9 parts of the mixed powder, 2 parts of ginseng extract, and 6 parts of salvia miltiorrhiza root extract evenly, and inoculate at a concentration of 3×10 at a ratio of 13% of the substrate weight. 8 A CFU / mL suspension of *Porphyra yezoensis* was stirred evenly and fermented at 28°C for 8 days.

[0059] W4. After fermentation is complete, steam is introduced to raise the temperature to 85°C and maintain it for 17 minutes to obtain a compound plant fermentation product.

[0060] W5. By mass, first mix the compound plant fermentation product with distilled water at a ratio of 1:3, extract by ultrasonication at 40℃ for 15 min and filter to obtain the first filtrate and the first filter residue; then mix the first filter residue with distilled water at a ratio of 1:3, extract by ultrasonication at 40℃ for 15 min and filter to obtain the second filtrate and the second filter residue; finally, mix the second filter residue with distilled water at a ratio of 1:3, extract by ultrasonication at 40℃ for 10 min and filter to obtain the third filtrate and the third filter residue. Mix the first filtrate, the second filtrate and the third filtrate and concentrate to 10% by volume to obtain the compound plant fermentation product extract.

[0061] W6. Freeze-dry the compound plant ferment extract to obtain the compound plant extract.

[0062] A method for preparing a moisturizing and whitening body lotion containing the above-mentioned compound plant extracts, comprising the following steps by weight:

[0063] X1. Mix 85 parts water, 7 parts compound plant extract, 5 parts whitening agent composed of 0.2 parts nicotinamide and 0.4 parts glutathione, and 0.7 parts thickener composed of 0.5 parts lecithin and 0.2 parts xanthan gum, and stir evenly at 70°C to obtain an aqueous mixture;

[0064] X2. Mix 0.3 parts of titanium dioxide, 2 parts of emollient composed of 1.2 parts of ethylhexyl palmitate and 0.4 parts of cyclohexylsiloxane, and 0.4 parts of preservative composed of 0.3 parts of methylparaben and 0.2 parts of bis(hydroxymethyl)imidazolidinyl urea, and stir evenly at 70°C to obtain an oil phase mixture;

[0065] X3. Add the aqueous phase mixture to the oil phase mixture, homogenize at 75°C, add 0.07 parts of triethanolamine and homogenize under vacuum, keep warm and stir to obtain an emulsified mixture;

[0066] X4. After cooling the emulsified mixture to 40°C, discharge the material to obtain a moisturizing and whitening body lotion containing compound plant extracts.

[0067] Example 3

[0068] A compound plant extract, said compound plant extract being prepared by the following method:

[0069] W1. Pre-treat the flowers of Dendrobium nobile and the leaves of Dendrobium simonii. Crush the flowers and leaves of Dendrobium nobile into 2cm pieces, pass steam through them, raise the temperature to 80℃, moisten them for 20 minutes, and then dry them to a moisture content of 10%.

[0070] W2. By weight, the pretreated Dendrobium nobile flowers and Dendrobium simonii leaves are mixed in a ratio of 7:5, ground into powder, to obtain a mixed powder;

[0071] W3. Mix 10 parts of the mixed powder, 3 parts of ginseng extract, and 7 parts of salvia miltiorrhiza root extract evenly, and inoculate at a concentration of 5×10 at a ratio of 15% of the substrate weight. 8 A CFU / mL suspension of *Porphyra yezoensis* was stirred evenly and fermented at 30°C for 9 days.

[0072] W4. After fermentation is complete, steam is introduced to raise the temperature to 85°C and maintain it for 20 minutes to obtain a compound plant fermentation product.

[0073] W5. By mass, first mix the compound plant fermentation product with distilled water at a ratio of 1:3, extract by ultrasonication at 45°C for 15 min and filter to obtain the first filtrate and the first filter residue; then mix the first filter residue with distilled water at a ratio of 1:3, extract by ultrasonication at 45°C for 15 min and filter to obtain the second filtrate and the second filter residue; finally, mix the second filter residue with distilled water at a ratio of 1:3, extract by ultrasonication at 45°C for 10 min and filter to obtain the third filtrate and the third filter residue. Mix the first filtrate, the second filtrate and the third filtrate and concentrate to 10% by volume to obtain the compound plant fermentation product extract.

[0074] W6. Freeze-dry the compound plant ferment extract to obtain the compound plant extract.

[0075] A method for preparing a moisturizing and whitening body lotion containing the above-mentioned compound plant extracts, comprising the following steps by weight:

[0076] X1. Mix 90 parts water, 9 parts compound plant extract, 6 parts whitening agent composed of 0.3 parts nicotinamide and 0.6 parts glutathione, and 1 part thickener composed of 0.5 parts lecithin and 0.2 parts xanthan gum, and stir evenly at 70°C to obtain an aqueous phase mixture;

[0077] X2. Mix 0.5 parts of titanium dioxide, 2 parts of emollient composed of 1.5 parts of ethylhexyl palmitate and 0.5 parts of cyclohexylsiloxane, and 0.5 parts of preservative composed of 0.3 parts of methylparaben and 0.2 parts of bis(hydroxymethyl)imidazolidinyl urea, and stir evenly at 70°C to obtain an oil phase mixture;

[0078] X3. Add the aqueous phase mixture to the oil phase mixture, homogenize at 75°C, add 0.1 parts of triethanolamine and homogenize under vacuum, keep warm and stir to obtain an emulsified mixture;

[0079] X4. After cooling the emulsified mixture to 40°C, discharge the material to obtain a moisturizing and whitening body lotion containing compound plant extracts.

[0080] Comparative Example 1

[0081] The difference from Example 2 above is that it does not contain Dendrobium nobile flowers.

[0082] Comparative Example 2

[0083] The difference from Example 2 above is that it does not contain Dendrobium nobile leaves.

[0084] Comparative Example 3

[0085] The difference from Example 2 above is that it does not contain ginseng extract, but contains 8 parts of salvia miltiorrhiza root extract.

[0086] Comparative Example 4

[0087] The difference from Example 2 above is that it does not contain tanshinone root extract, and the amount of ginseng extract is 8 parts.

[0088] Comparative Example 5

[0089] The difference from Example 2 above is that an equal amount of Dendrobium officinale is used instead of Dendrobium nobile flowers.

[0090] Comparative Example 6

[0091] The difference from Example 2 above is that an equal amount of Dendrobium officinale is used instead of Dendrobium nobile leaves.

[0092] Comparative Example 7

[0093] The difference from Example 2 above is that an equal amount of Codonopsis pilosula extract is used instead of ginseng extract.

[0094] Comparative Example 8

[0095] The difference from Example 2 above is that an equal amount of Panax notoginseng root extract was used instead of Salvia miltiorrhiza root extract.

[0096] Comparative Example 9

[0097] The difference from Example 2 above is that the fermentation process in step W3 is omitted.

[0098] Performance testing

[0099] 1. Stability test of compound plant extracts

[0100] The compound plant extracts obtained in Examples 1-3 and Comparative Examples 1-9 were mixed with deionized water to prepare a 10% compound plant extract solution. The solution was then placed in 50mL centrifuge tubes (Corning 50mL PP centrifuge tubes, self-standing, with a sealed cap, outer diameter 29.1mm, length 114.9mm) and allowed to stand at 25℃ for 0-48 hours. The appearance of the product was recorded. The test results are shown in Table 1.

[0101] When stratification occurs, if the stratification interface is less than 5 mm from the top surface of the liquid, it is considered slight stratification; if the stratification interface is 5-30 mm from the top surface of the liquid, it is considered severe stratification; and if the stratification interface is more than 30 mm from the top surface of the liquid, it is considered severe stratification.

[0102] Table 1

[0103]

[0104] 2. Moisturizing performance test

[0105] The moisturizing and whitening body lotions containing compound plant extracts prepared in Examples 1-3 and Comparative Examples 1-9 were tested for their moisturizing properties. The specific operating method was as follows:

[0106] Select a glass dish of appropriate size, weigh 20g of moisturizing skin care product, drop it onto the glass dish and spread it evenly. After placing it in a desiccator for 12 hours, weigh it again and calculate the water loss rate. The results are shown in Table 2.

[0107] Table 2

[0108]

[0109] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A compound plant extract, characterized in that, The compound plant extract was prepared by the following method: W1. Pre-treat the flowers of Dendrobium nobile and the leaves of Dendrobium simonii; W2. By weight, the pretreated Dendrobium nobile flowers and Dendrobium simonii leaves are mixed in a ratio of 3-7:2-5, ground into powder, to obtain a mixed powder; W3. Mix 8-10 parts of mixed powder, 1-3 parts of ginseng extract, and 4-7 parts of salvia miltiorrhiza root extract evenly, and inoculate with bacterial solution for fermentation; W4. After fermentation is complete, steam is introduced to raise the temperature to 85℃ and maintain it for 15-20 minutes to obtain the compound plant fermentation product. W5. Take the compound plant fermentation product, mix it with 3 times the volume of distilled water, extract it by ultrasonication, cycle it 3 times, combine the filtrates, and concentrate it to obtain the compound plant fermentation product extract. W6. Freeze-dry the compound plant ferment extract to obtain the compound plant extract; The pretreatment described in W1 refers to breaking the flowers of Dendrobium nobile and the leaves of Dendrobium simonii into 1-2cm pieces, passing steam through them to raise the temperature to 70-80℃, moistening them for 15-20 minutes, and then drying them to a moisture content of 5-10%. The inoculum solution mentioned in W3 refers to an inoculation concentration of 1×10⁻⁵% of the substrate weight, administered at a ratio of 10-15%. 8 -5×10 8 A CFU / mL suspension of *Porphyra yezoensis* was stirred thoroughly and then fermented. The fermentation process is carried out at a temperature of 27-30℃ for 7-9 days. Step W5 is as follows: First, mix the compound plant ferment with distilled water at a ratio of 1:3 by mass, extract by ultrasonication at 35-45℃ for 15 minutes and filter to obtain the first filtrate and the first filter residue; then mix the first filter residue with distilled water at a ratio of 1:3, extract by ultrasonication at 35-45℃ for 15 minutes and filter to obtain the second filtrate and the second filter residue; finally, mix the second filter residue with distilled water at a ratio of 1:3, extract by ultrasonication at 35-45℃ for 10 minutes and filter to obtain the third filtrate and the third filter residue; mix the first filtrate, the second filtrate and the third filtrate and concentrate to 10% by volume to obtain the compound plant ferment extract.

2. A composite plant extract prepared by the preparation method as described in claim 1.

3. A moisturizing and whitening body lotion containing compound plant extracts, characterized in that, Includes the compound plant extract described in claim 2.

4. A moisturizing and whitening body lotion containing compound plant extracts according to claim 3, characterized in that, By weight, it also includes the following components: 1-2 parts emollient, 4-6 parts whitening agent, 0.2-0.5 parts colorant, 0.5-1 part thickener, 0.05-0.1 part pH adjuster, 0.3-0.5 parts preservative, and 80-90 parts water.

5. A moisturizing and whitening body lotion containing compound plant extracts according to claim 4, characterized in that, The emollient, by weight, comprises 1-1.5 parts of ethylhexyl palmitate and 0.2-0.5 parts of cyclohexylsiloxane; The whitening agent is composed of 0.1-0.3 parts niacinamide and 0.2-0.6 parts glutathione; The colorant is titanium dioxide; The thickener is composed of 0.5 parts lecithin and 0.2 parts xanthan gum; The pH adjuster is triethanolamine; The preservative consists of 0.3 parts of methylparaben and 0.2 parts of bis(hydroxymethyl)imidazolidinyl urea.

6. A method for preparing a moisturizing and whitening body lotion containing a compound plant extract as described in any one of claims 3-5, characterized in that, By weight, the following steps are included: X1. Mix water, 6-9 parts of compound plant extract, whitening agent, and thickener, and stir evenly at 70°C to obtain an aqueous mixture; X2. Mix the colorant, emollient, and preservative and stir evenly at 70°C to obtain an oil phase mixture; X3. Stir the aqueous phase mixture into the oil phase mixture, homogenize at 75°C, add pH adjuster and vacuum stir to homogenize, keep warm and stir to obtain emulsified mixture; X4. After cooling the emulsified mixture to 40°C, discharge the material to obtain a moisturizing and whitening body lotion containing compound plant extracts.

Images