High-stability amino acid type cleansing product with oil control effect and preparation method thereof

Abstract

The application discloses a high-stability amino acid type facial cleanser with oil control efficacy and a preparation method thereof. The four components of sodium alginate, sodium gluconate, thick Saint grass leaf extract and Uncaria hirsuta flowers / leaves extract are applied to the amino acid type facial cleanser, so that the stability problems of the amino acid type facial cleanser, such as precipitation, thickening, yellowing and water discharge, can be improved, the performance of the amino acid type facial cleanser, such as foam amount, foam stability and foam density, can be improved, the foam is more abundant and dense, the irritability problem caused by the surfactant in the facial cleanser can be improved, the four components are used in cooperation, the facial cleanser has good oil control efficacy, and thus the amino acid type facial cleanser with high stability, abundant foam, mildness, no irritability and good oil control efficacy is obtained.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cosmetic technology, in particular to a high-stability amino acid type cleansing product with oil control effect and a preparation method thereof. BACKGROUND

[0002] Due to the problems of facial skin secreting sebum, sweat and environmental pollutants, cleansing products have become an indispensable part of daily skin care process. Cleansing products are mainly composed of surfactants, solvents, skin conditioning agents and preservatives, etc. Surfactants are an important component of cleansing products. Surfactants are amphiphilic substances with hydrophilic and lipophilic groups. The lipophilic group can be adsorbed on the interface of skin surface oil and dirt, and the hydrophilic group is directed to the water medium, which reduces the interfacial tension between them, resulting in a reduction in the work required to remove oil and dirt from the skin surface. Finally, the dirt is removed.

[0003] With the increasing number of oil-sensitive skin people in recent years, the choice of facial cleansing products has also attracted more and more attention. Oil-sensitive skin people hope that the cleansing product is clean, mild and non-irritating, rich in foam, and has oil control effect. At present, the market cleansing products are mainly based on soap and amino acid. The soap-based cleansing product is made by neutralizing fatty acids and alkali. Although it has the characteristics of rich foam, easy to clean and refreshing after washing, it has a high pH value, which is not mild enough for the skin, and can cause skin tightness and dryness after washing for sensitive skin people. The amino acid type cleansing product is a weak acid cleansing product composed of amino acid surfactants. Because its pH is close to that of the skin, it has low irritation and suitable cleaning, and is deeply loved by sensitive skin people. However, the amino acid type cleansing product may have problems such as precipitation, thickening, yellowing and water separation, so the stability of the amino acid type cleansing product is a great challenge.

[0004] At present, there are few studies on the stability of amino acid type cleansing products on the market. The market cleansing products are more focused on cleaning effect, and the oil control effect is not good, which cannot meet the needs of oil-sensitive skin people. Therefore, it is necessary to develop a cleansing product with cleaning function, good stability, rich foam, mildness and no irritation, which can greatly solve the problems of stability and function of cleansing products. SUMMARY

[0005] To solve the above problems, the application provides a high-stability amino acid type facial cleanser with oil control effect and a preparation method thereof. The four ingredients of sodium alginate, sodium gluconate, thick Saint grass leaf extract and Uncaria gambier leaf / flower extract are applied to the amino acid type facial cleanser, so that the stability problems of the amino acid type facial cleanser such as precipitation, thickening, yellowing and water discharge can be improved, the performance of the amino acid type facial cleanser such as foam amount, foam stability and foam density can be improved, the foam is more abundant and dense, the irritability problem caused by the surfactant in the facial cleanser can be improved, and the four ingredients are used in cooperation, so that the facial cleanser has good oil control effect, thereby obtaining the amino acid type facial cleanser with high stability, abundant foam, mildness, no irritability and good oil control effect.

[0006] To achieve the above object, the application provides the following technical scheme: a high-stability amino acid type facial cleanser with oil control effect, characterized by comprising effective components and additives, and the content (mass ratio) of the effective components in the facial cleanser is as follows: 0.05%-0.15% of sodium alginate, 0.05%-0.15% of sodium gluconate, 1%-10% of thick Saint grass leaf extract and 1%-10% of Uncaria gambier leaf / flower extract; the additives at least comprise surfactants (amino acid type surfactants and non-amino acid type surfactants), thickening agents, humectants, chelating agents and water, and can further comprise preservatives, pH regulators and pearl agents.

[0007] Further, the components of the above amino acid type facial cleanser and the content (mass ratio) in the facial cleanser are as follows: 15%-40% of surfactants (amino acid type surfactants and non-amino acid type surfactants, the mass ratio of the two is 10:1-5), 0.5%-5% of thickening agents, 5%-30% of humectants, 0.05%-0.15% of chelating agents, 0-3% of pH regulators, 0%-3% of preservatives, 0.05%-0.15% of sodium alginate, 0.05%-0.15% of sodium gluconate, 1%-10% of thick Saint grass leaf extract, 1%-10% of Uncaria gambier leaf / flower extract, 0%-4% of other auxiliary materials (such as pearl agents), and the balance is water.

[0008] The thick Saint grass leaf extract is prepared by the following method: the crushed thick Saint grass leaf is extracted by reflux extraction method / microwave extraction method with 45%-55% ethanol aqueous solution at 55-65 DEG C, the extract is filtered, glycerol is added to the concentrated filtrate in an amount of 0.8-1.2 times of the mass of the concentrated filtrate, and the thick Saint grass leaf extract is obtained, wherein the concentration is 0.05-0.2 g / mL (0.05-0.2 g of thick Saint grass leaf is used to obtain 1 ml of thick Saint grass leaf extract) based on the crude drug amount. In the above extraction method, the reflux extraction method is superior to the microwave extraction method.

[0009] The preparation method of Uncaria hirsuta flowers / leaves extract is as follows: dry Uncaria hirsuta flowers and / or leaves powder is taken, 55-65% ethanol aqueous solution is used as the extracting agent, and the extraction is carried out by using the ultrahigh pressure extraction method, the extract is filtered, and then the concentrated filtrate is mixed with 0.8-1.2 times the mass of butanediol to obtain the Uncaria hirsuta flowers / leaves extract, wherein the concentration is 0.05-0.06 g / mL (i.e., 0.05-0.06 g of dry Uncaria hirsuta flowers and / or leaves powder is used to obtain 1 ml of Uncaria hirsuta flowers / leaves extract).

[0010] Further, the dosage form of the amino acid type cleansing product includes but is not limited to cleansing mousse, cleansing jelly, cleansing paste, cleansing honey, etc.

[0011] The amino acid type surfactant is any one or more of potassium cocoyl glycinate, potassium lauroyl glycinate, TEA-cocoyl glycinate, sodium cocoyl glycinate, sodium lauroyl glycinate, sodium cocoyl glutamate, TEA-cocoyl glutamate, sodium lauroyl methyl taurate, disodium cocoyl glutamate, sodium cocoyl aminopropionate, sodium methyl cocoyl taurate, and sodium methyl cocoyl taurate.

[0012] The non-amino acid type surfactant is any one or more of lauryl betaine, cocoyl betaine, sodium lauroamphoacetate, sodium cocoyl amphoacetate, disodium lauroamphodiacetate, disodium cocoyl amphodiacetate, cocamidopropyl betaine, sodium C14-16 olefin sulfonate, cocamidopropyl hydroxysultaine, and decyl glucoside.

[0013] The humectant includes but is not limited to any one or a combination of more than one humectant of glycerin, dipropylene glycol, butanediol, propylene glycol, methyl propylene glycol, and sorbitol.

[0014] The chelating agent includes but is not limited to any one or a combination of more than one chelating agent of EDTA-disodium, EDTA-trisodium, and EDTA-tetrasodium.

[0015] The thickening agent includes but is not limited to any one or a combination of more than one thickening agent of sodium polyacrylate, carbomer, xanthan gum, hydroxyethyl cellulose, polyacrylate crosspolymer-6, acryloyldimethyltaurate / VP copolymer, hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer, magnesium aluminum silicate, hydroxypropyl starch phosphate, acrylate (class) copolymer, PEG-120 methyl glucose dioleate, PEG-150 distearate, sodium chloride, etc.

[0016] The preservative is any one or a combination of more than one preservative of p-hydroxyacetophenone, caprylyl hydroxysultaine, phenoxyethanol (amount <1%), and 1,2-hexanediol.

[0017] The pH adjusting agent includes, but is not limited to, any one of citric acid, tromethamine, sodium hydroxide, lactic acid, triethanolamine or a combination of multiple pH adjusting agents.

[0018] The second aspect of the present application provides a preparation method of the above-mentioned amino acid type cleansing product, characterized in that it specifically comprises the following steps:

[0019] S1: The surfactant, water, humectant, chelating agent and pH adjusting agent are put in, stirred and heated to 90-95 DEG C, and slowly cooled after complete dissolution;

[0020] S2: When the temperature is cooled to 80-85 DEG C, the thickening agent and other auxiliary materials (such as pearl agent, etc.) are added, the thickening agent is added directly or dispersed in water or humectant, and slowly cooled after complete dissolution;

[0021] S3: When the temperature is cooled to 65-70 DEG C, the preservative is added, and slowly cooled after complete dissolution;

[0022] S4: When the temperature is cooled to 40-50 DEG C, sodium alginate, sodium gluconate, thick leaf St. John's wort extract and Uncaria flower / leaf extract are added, and slowly cooled after complete dissolution; after creaming, continue to stir for 20-40 min.

[0023] The present application has the beneficial technical effects that:

[0024] 1. The present application applies sodium alginate, sodium gluconate, thick leaf St. John's wort extract and Uncaria flower / leaf extract to the amino acid type cleansing product after compounding, which can improve the stability of the amino acid type cleansing product, and can synergistically improve the stability problems of the existing amino acid type cleansing cream, such as low-temperature material body thickening, softening and high-temperature water yellowing. In addition, the four components have synergistic effect, and have good oil control effect. In addition, we have found that compared with the microwave extraction method, the thick leaf St. John's wort extract prepared by the reflux extraction method has more excellent oil control effect when synergistically acting with the other three components.

[0025] 2. The present application applies sodium alginate, sodium gluconate, thick leaf St. John's wort extract and Uncaria flower / leaf extract to the amino acid type cleansing product, and through the closed patch test, it is found that it can significantly reduce the irritation of the cleansing product, and is more friendly to sensitive skin. In addition, we have found through consumer evaluation that it can also significantly improve the foam amount, foam stability, foam density, skin feel after washing and cleaning effect of the cleansing product. DETAILED DESCRIPTION

[0026] The application will be further described in the following examples without thereby limiting the application to the examples described. Any variations of the application, which become apparent to those of skill in the art upon review of this disclosure, are intended to be within the scope of the application. In the examples of the application, all the raw materials are commercially available unless otherwise specified.

[0027] Examples 1-3

[0028] The formula of the amino acid type cleansing products of Examples 1-3 and Comparative Examples 1-6 is shown in Table 1.

[0029] The preparation method of Examples 1-3 is as follows:

[0030] S1: The surfactants (sodium cocoyl glycinate, imidazoline, betaine), water, humectants (glycerin), chelating agents (EDTA-2Na) are put in, and stirred to be heated to 90-95°C, and then stirred to be completely dissolved, with the stirring speed being 500-1000 rpm, and slowly cooled down;

[0031] S2: When the temperature is cooled down to 80-85°C, the thickening agent (Glucamate DOE-120 thickening agent) and the pearlescent agent are added, and stirred to be completely dissolved, with the stirring speed being 1000-1500 rpm, and slowly cooled down; TM

[0032] S3: When the temperature is cooled down to 65-70°C, the preservatives (p-hydroxyacetophenone, 1,2-hexanediol) are added, and stirred to be completely dissolved, with the stirring speed being 1000-1500 rpm, and slowly cooled down;

[0033] S4: When the temperature is cooled down to about 45°C, the sodium alginate, sodium gluconate, thickleaf hedyis diffusum leaf extract, and Uncaria tomentosa flower / leaf extract are added, and stirred to be completely dissolved, with the stirring speed being 1000-1500 rpm, and slowly cooled down; after the cream is formed, the stirring is continued for 30 min.

[0034] The preparation method of Comparative Examples 1-6 is as follows: on the basis of the above, the corresponding raw materials are reduced.

[0035] Table 1 Formula of the amino acid type cleansing products of Examples 1-3 and Comparative Examples 1-6

[0036]

[0037]

[0038] The preparation method of the thickleaf hedyis diffusum leaf extract ① is as follows:

[0039] ​(1) take the appropriate amount of thick leaf St. John's wort leaf powder, add 50% ethanol aqueous solution, the ratio of solid to liquid is 1:10, reflux extraction at 60℃ for 40min, filter the filtrate, filter residue repeated extraction 1 times, combined two times of filtrate;

[0040] (2) the filtrate prepared in step (1) is concentrated at 65℃ under reduced pressure, then glycerol is added to the same mass of concentrated solution, stirred and mixed uniformly, filtered to obtain thick leaf St. John's wort leaf extract, wherein the concentration is 0.1408g / mL in terms of crude drug amount.

[0041] The preparation method of the thick leaf St. John's wort leaf extract preparation method 2, the specific steps are as follows:

[0042] (1) take the appropriate amount of thick leaf St. John's wort leaf powder, add 50% ethanol aqueous solution, the ratio of solid to liquid is 1:10, microwave power is 400W, extraction 20min, filter the filtrate, filter residue repeated extraction 1 times, combined two times of filtrate;

[0043] (2) the filtrate prepared in step (1) is concentrated at 65℃ under reduced pressure, then glycerol is added to the same mass of concentrated solution, stirred and mixed uniformly, filtered to obtain thick leaf St. John's wort leaf extract, wherein the concentration is 0.1408g / mL in terms of crude drug amount.

[0044] The preparation method of the thick leaf St. John's wort leaf extract preparation method 2, the specific steps are as follows:

[0045] (1) take the appropriate amount of thick leaf St. John's wort leaf powder, add 50% ethanol aqueous solution, the ratio of solid to liquid is 1:10, microwave power is 400W, extraction 20min, filter the filtrate, filter residue repeated extraction 1 times, combined two times of filtrate;

[0046] (2) the filtrate prepared in step (1) is concentrated at 65℃ under reduced pressure, then glycerol is added to the same mass of concentrated solution, stirred and mixed uniformly, filtered to obtain thick leaf St. John's wort leaf extract, wherein the concentration is 0.1408g / mL in terms of crude drug amount.

[0047] In the above examples and comparative examples, sodium cocoyl glycinate is a strip-shaped solid; imidazoline INCI name: water 69%, sodium lauroamphoacetate 31%; betaine INCI name: water 70%, cocamidopropyl hydroxysultaine 30%; Glucamate TM DOE-120 thickening agent INCI name is PEG-120 methyl glucose dioleate 99.975%, tocopherol (vitamin E) 0.025%; pearlescent agent INCI name: ethylene glycol distearate 85%, ethylene glycol stearate 15%.

[0048] The raw materials and sources involved in the above examples and comparative examples are as follows:

[0049] Table 2 Raw materials involved in examples and comparative examples and sources

[0050]

[0051]

[0052] Test Example 1: Stability test

[0053] The samples of Examples 1-3 and Comparative Examples 1-6 were respectively placed at room temperature, -18℃, 4℃, 45℃, 40℃, and cold-heat cycle (-18℃, 4℃, 45℃, cycle once every 3 days) for stability observation for corresponding time. The stability of the product was judged by whether yellowing, water generation, softening of the material, and thickening of the material occurred or not. If no unstable phenomena such as yellowing, water generation, softening of the material, and thickening of the material occurred, the stability passed. If not, the reason was indicated. The specific results are shown in Table 3 below.

[0054] Table 3 Stability test results

[0055]

[0056]

[0057] As shown in Table 3, the stability of Examples 1-3 and Comparative Example 4 was not a problem. In Comparative Example 1, sodium gluconate was not added, and the material body yellowed at 45℃ and cold-heat cycle. In Comparative Example 2, sodium alginate was not added, and the material body generated water at 45℃ and cold-heat cycle. In Comparative Example 3, sodium alginate and sodium gluconate were not added, and the material body generated water and yellowed at 45℃, 40℃, and cold-heat cycle, and the material body thickened at -18℃. In Comparative Example 4, thickleaf hollyhock leaf extract ② was added, and the stability passed, indicating that thickleaf hollyhock leaf extract extracted by reflux extraction and microwave extraction could improve the high and low temperature stability when used in combination with the other three components. In Comparative Example 5, sodium alginate, sodium gluconate, thickleaf hollyhock leaf extract, and Uncaria macrophyllae flower / leaf extract were not added, and the material body thickened at -18℃, the material body softened at 4℃, and the material body generated water and yellowed at 45℃, 40℃, and cold-heat cycle. In Comparative Example 6, thickleaf hollyhock leaf extract and Uncaria macrophyllae flower / leaf extract were not added, and the material body thickened at -18℃, and the material body yellowed at 45℃ and cold-heat cycle. In Comparative Example 7, Uncaria macrophyllae flower / leaf extract was not added, and the material body thickened at -18℃, and the material body yellowed at 45℃. Therefore, sodium alginate, sodium gluconate, thickleaf hollyhock leaf extract, and Uncaria macrophyllae flower / leaf extract could synergistically improve the stability problems of the amino acid type facial cleanser, such as thickening and softening of the material body at low temperature, and yellowing of the material body at high temperature.

[0058] Test Example 2: Irritation evaluation test

[0059] 35 subjects (10 males, 25 females) aged 23-50 years were recruited for the experiment.

[0060] Human skin closed patch test method: The test samples of Examples 1-3 and Comparative Examples 1, 2, 4, 6 and 7 were diluted with distilled water to form a 1% solution as the test substance, and the diluent distilled water was used as the control group. Comparative Examples 3 and 5 were not stable and were not subjected to the irritation evaluation experiment. A qualified patch tester was selected, and 0.020-0.025 mL of the test substance was placed in the patch tester chamber. The patch tester with the test substance was applied to the flexor of the forearm of the subject for 24 h. After 24 h, the test substance patch tester was removed, and the skin reaction was observed at 0.5 h, 24 h and 48 h after removal, respectively. The results were recorded according to the skin reaction grading standard in the Cosmetic Safety Technical Specification 2015 (Table 4), and the detailed results are shown in Table 5.

[0061] Table 4 Skin reaction grading standard

[0062]

[0063]

[0064] The test results are shown in Table 5. Examples 1-3 and Comparative Example 4 did not have adverse reactions and were mild and non-irritating. Examples 1-2 and Comparative Examples 6-7 all had different degrees of adverse reactions, indicating that the four ingredients of sodium alginate, sodium gluconate, Hedyotis diffusa leaf extract and Uncaria macroceras flower / leaf extract used in combination can reduce the irritation of the amino acid type cleanser, making the amino acid type cleanser mild and non-irritating. When the Hedyotis diffusa leaf extract extracted by the reflux extraction method and the microwave extraction method is used in combination with the other three ingredients, the amino acid type cleanser becomes mild and non-irritating.

[0065] Table 5 Results of irritation evaluation experiment

[0066]

[0067]

[0068] Test Example 3: Skin feel test experiment

[0069] Investigation questionnaire (32 people were selected for this investigation questionnaire, 14 males and 18 females, aged 23-50 years.

[0070] Test method: the subjects respectively use the samples of examples 1-3 and comparative examples 1, 2, 4, 6 and 7, and comparative examples 3 and 5, which are poor in stability, do not conduct the skin feel test experiment. The subjects use daily skin care products normally during the day, and use one test product every night for 8 days (use method: wet the facial skin with clean water, take an appropriate amount of sample on the palm, add water and rub to generate abundant foam, apply the foam to the face and massage in a circle, avoid the eyes, and then wash thoroughly with clean water), and after the use, the subjects score the use effect, and the foam amount, foam stability, foam density, after-washing moisturizing feeling and cleaning effect are used as the evaluation criteria to score the examples and comparative examples: 1-5 points, and the higher the score, the more the sample is loved by the volunteers and the better the performance. The detailed results are shown in Table 6.

[0071] Table 6: Results of skin feel test experiment

[0072]

[0073] From Table 6, by comparing examples 1-3, comparative examples 1, 2, 4, 6, 7, the overall satisfaction is example 2 > example 3 > example 1 > comparative example 4 > comparative example 7 > comparative example 1 > comparative example 2 > comparative example 6, and the overall satisfaction score of example 2 is 24.6, which is the highest, indicating that the skin feel is more excellent, and the scores of the comparative examples are obviously lower than that of example 2, indicating that when the four ingredients of sodium alginate, sodium gluconate, thick-leaf holly leaf extract and Uncaria hookeriana flower / leaf extract are used synergistically, the foam amount, foam stability, foam density, after-washing skin feeling and cleaning effect and other performances can be increased, and secondly, when the thick-leaf holly leaf extract extracted by the reflux extraction method is used synergistically with the other three ingredients, the skin feel of the amino acid type cleanser is more excellent.

[0074] Test example 4: immediate oil control effect test

[0075] Test instrument: Sebumeter test probe.

[0076] Test selection criteria: 20-60 years old, and the oil content of the left and right forehead >110 μg / cm 2 , 50 men and 70 women who meet the above requirements, a total of 120 people, test the samples of examples 2 and comparative examples 2, 4 and 7, 30 people for each sample.

[0077] Test method: the test population washes the left forehead with the test sample as the experimental group, and washes the right forehead with clean water as the control group, and tests the oil content of the experimental group and the control group at different time nodes in a constant temperature and humidity environment. Before use, test the oil content of the test area and the control area at 0h, 1h and 4h after use.

[0078] Sample use method: wet the facial skin with water, take an appropriate amount of sample on the palm, add water and rub to generate abundant foam, apply the foam on the face and massage, avoid the eyes, then wash with water.

[0079] Oil content difference rate = (average oil content of experimental area - average oil content of control area) / average oil content of control area x 100%

[0080] The oil content difference rate test results are shown in Table 7.

[0081] Table 7 Oil content difference rate test results

[0082] Example 2 Comparative Example 2 Comparative Example 4 Comparative Example 7 0h -55.68％** -51.18％** -52.51** -52.64％** 1h -39.44％** -19.80％** -23.87％** -18.42％** 4h -22.12％** -6.59％* -11.28％** -6.06％*

[0083] Note: In the table, compared with the initial oil content, "*" indicates a significant difference (0.01≤P<0.05); "**" indicates a significant difference (0.001≤P<0.01).

[0084] From the analysis of the results in Table 7, it can be seen that after 0h, 1h, 4h, the oil content difference rates of Example 2, Comparative Examples 2, 4 and 7 compared with the control area after 1h and 4h are significantly different. The oil content difference rate of Example 2 is significantly higher than that of Comparative Examples 2, 4 and 7, indicating that sodium gluconate, sodium alginate, thick-leaf Saint George leaf extract and ancient Uncaria flower / leaf extract have a synergistic effect, and the extraction method of thick-leaf Saint George leaf extract is better than microwave extraction. The thick-leaf Saint George leaf extract extracted by reflux extraction method has a better oil control effect when used synergistically with the other three ingredients.

Claims

1. A high-stability amino acid-based cleansing product having an oil control effect, characterized by, The effective component and the auxiliary agent, the effective component and the mass percentage content are as follows: sodium alginate 0.05%-0.15%, sodium gluconate 0.05%-0.15%, thick leaf extract of Saint John's wort 1%-10%, Uncaria tomentosa flower / leaf extract 1%-10%; the auxiliary agent at least includes a surfactant, a thickening agent, a humectant, a chelating agent and water; the surfactant is a combination of an amino acid type surfactant and a non-amino acid type surfactant; The thick leaf extract of Saint John's wort is prepared by the following method: taking the crushed thick leaf of Saint John's wort, using 45-55% ethanol aqueous solution to extract by reflux extraction method / microwave extraction method at 55-65 DEG C, filtering the extract, adding glycerol to 0.8~1.2 times the mass of the concentrated solution after the filtrate is concentrated to obtain the thick leaf extract of Saint John's wort, wherein the concentration is 0.05~0.2g / mL based on the crude drug amount. The Uncaria tomentosa flower / leaf extract is prepared by the following method: taking Uncaria tomentosa flower and / or leaf powder, using 55-65% ethanol aqueous solution as the extracting agent, and extracting by ultra-high pressure extraction method, filtering the extract, adding butanediol to 0.8~1.2 times the mass of the concentrated solution after the filtrate is concentrated to obtain the Uncaria tomentosa flower / leaf extract, wherein the concentration is 0.05~0.06g / mL based on the crude drug amount. The amino acid type surfactant is any one or more of the following: potassium cocoyl glycinate, potassium lauroyl glycinate, TEA cocoyl glycinate, sodium cocoyl glycinate, sodium lauroyl glycinate, sodium cocoyl glutamate, TEA cocoyl glutamate, sodium lauroyl methylamide, disodium cocoyl glutamate, sodium cocoyl amino propionate and sodium methyl cocoyl taurate. The non-amino acid type surfactant is any one or more of the following: lauryl betaine, cocoyl betaine, sodium lauroamphoacetate, sodium cocoyl amphoacetate, disodium lauroamphoacetate, disodium cocoyl amphoacetate, cocamidopropyl betaine, sodium C14-16 alkene sulfonate, cocamidopropyl hydroxysultaine and decyl glucoside.

2. The highly stable amino acid-based facial cleanser as described in claim 1, characterized in that, The components of the high-stability amino acid type cleansing product and the mass percentage content are as follows: surfactant 15%-40%, thickening agent 0.5%-5%, humectant 5%-30%, chelating agent 0.05%-0.15%, pH regulator 0-3%, preservative 0%-3%, sodium alginate 0.05%-0.15%, sodium gluconate 0.05%-0.15%, thick leaf extract of Saint John's wort 1%-10%, Uncaria tomentosa flower / leaf extract 1%-10%, other auxiliary materials 0%-4%, and the balance is water.

3. The highly stable amino acid-based facial cleanser as described in claim 2, characterized in that, The surfactant is a combination of an amino acid type surfactant and a non-amino acid type surfactant, and the mass ratio of the two is 10:1-5.

4. The highly stable amino acid-based facial cleanser as described in claim 1, characterized in that, The dosage form of the amino acid type cleansing product is cleansing mousse, cleansing jelly, cleansing paste or cleansing honey.

5. The preparation method of the high-stability amino acid type cleansing product according to any one of claims 1-4, characterized in that, S1: the surfactant, water, humectant, chelating agent and pH regulator are put in, stirred and heated to 90-95 DEG C, and then kept stirring until completely dissolved, and then slowly cooled; S2: When the temperature is reduced to 80-85℃, add thickening agent and other auxiliary materials, keep stirring until completely dissolved, continue to slowly reduce the temperature; S3: When the temperature is reduced to 65-70℃, add preservatives, keep stirring until evenly mixed, continue to slowly reduce the temperature; S4: When the temperature is reduced to 40-50℃, add sodium alginate, sodium gluconate, thick leaf extract and Uncaria flower / leaf extract, keep stirring until evenly mixed, continue to slowly reduce the temperature, continue to stir for 20-40min after the cream is formed, to obtain high-stability amino acid type cleansing product.

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