A repairing and whitening composition and preparation method thereof

Abstract

The present application relates to the field of skin care products, and more specifically, it relates to a repairing and whitening composition and a preparation method thereof. A repairing and whitening composition, according to mass percentage, includes: phase A: moisturizer A, stabilizer, antioxidant A, water; phase B: thickener A, moisturizer B; phase C: skin conditioner A; phase D: emollient, Candida alba / glucose / rapeseed oleic acid methyl ester fermentation product, avocado tree fruit fat, dimethylmethoxychromanol; phase E: skin conditioner B, thickener B, antioxidant B; phase F: hydrolyzed rice protein, chlorella extract, plum extract, yeast lysate extract, baobab seed extract, alpine edelweiss callus extract, hops extract. The present application has a good mixing effect and can provide better whitening, repairing, moisturizing and other advantages while effectively reducing the amount of active ingredients.

Description

Technical Field

[0001] The present application relates to the field of skin care products, and more specifically, to a repairing and whitening composition and a preparation method thereof. Background Art

[0002] The skin serves as a "protective wall" between the body and the external environment. Its biggest function is to resist external stimuli and preserve moisture inside the skin. It not only prevents microorganisms, fungi, viruses, allergens, etc. from entering the skin, but also absorbs ultraviolet radiation, reduces mechanical damage, and protects the stability of the human body's internal environment. It is the human body's largest barrier.

[0003] The process of active ingredients such as whitening and anti-aging in skin care products penetrating into the skin will cause certain pressure on the skin barrier, because it is difficult to balance the health of the barrier and the strong efficacy. In particular, many skin care products now ensure their efficacy by increasing the amount of active ingredients added, which puts a lot of pressure on the skin barrier. Using products with higher active ingredients may have obvious results in the short term, but in the long run, the skin barrier cannot withstand it, and it will damage the barrier and be unable to absorb these active ingredients, which is counterproductive. Therefore, there is still room for improvement. Summary of the invention

[0004] In order to solve the above problems, the present application provides a repairing and whitening composition and a preparation method thereof.

[0005] In the first aspect, the present application provides a repairing and whitening composition, which adopts the following technical solution:

[0006] A repairing and whitening composition, comprising the following raw materials in percentage by mass:

[0007] Phase A: 0.1-3% moisturizer A, 0.1-2% stabilizer, 0-1% antioxidant A, and water to make up the balance;

[0008] Phase B: 0.1-1% thickener A, 3-8% moisturizer B;

[0009] Phase C: 0.01-3% skin conditioning agent A;

[0010] Phase D: 3-8% emollients, 1-5% Candida albicans / glucose / rapeseed methyl ester ferment, 0.1-2% avocado butter, 0.01-0.5% dimethylmethoxychromanol;

[0011] Phase E: 0.5-5% skin conditioning agent B, 0.01-1% thickener B, 0.01-0.1% antioxidant B;

[0012] Phase F: 0.01-0.1% hydrolyzed rice protein, 0.01-0.1% chlorella extract, 0.01-0.2% plum blossom extract, 0.01-0.5% yeast lysate extract, 0.00001-0.0001% baobab seed extract, 0.0001-0.005% alpine edelweiss callus extract, 0.00001-0.0001% hops extract.

[0013] By adopting the above technical scheme, a large amount of plant extracts are added to the composition of the present application, and the plant extracts have good skin-friendly and low-irritation effects. In addition, under the joint cooperation of honey-grown Candida albicans / glucose / rapeseed oleic acid methyl ester fermentation products, avocado tree fat, chlorella extract, and plum extract, the surface tension of the oil-water interface can be reduced, and a good emulsifying effect is achieved, so that the oils and fats in avocado tree fat, chlorella extract, and plum extract can be kept stable in an environment where the external phase is water under conditions similar to those with an emulsifier, and the long-term stability is maintained. At the same time, due to the reduction of surface tension, there is a more sufficient mixing effect between the raw materials, and it can be quickly and deeply penetrated when applied to the skin. Thus, excellent effects can still be shown in the case of effectively reducing the amount of active substances added in the formula, so that the repair whitening composition provides users with moisturizing skin feeling, and has excellent moisturizing, repairing, and whitening effects on the skin.

[0014] In practice, it is found that the combination of the four can make a small amount of hydrolyzed rice protein, yeast lysate extract, baobab seed extract, alpine edelweiss callus extract, and hops extract have a good mixing effect in the system, thereby exerting better efficacy.

[0015] The repairing and whitening composition provided in the present application can greatly reduce the amount of active ingredients used, thereby reducing the pressure on the skin barrier; and through a special combination to fully amplify the effects of the active ingredients, daily use can repair the barrier and whiten the skin, achieving multiple goals at one stroke.

[0016] Preferably, in terms of mass percentage, the Candida albicans / glucose / rapeseed oleic acid methyl ester fermentation product is 2-4%, the avocado butter is 0.1-0.5%, the Chlorella extract is 0.01-0.03%, and the plum blossom extract is 0.05-0.1%.

[0017] By adopting the above technical scheme, the specific dosage of the fermentation product of Candida albicans / glucose / rapeseed oleic acid methyl ester, avocado oil, chlorella extract and plum blossom extract in the system is further limited, which can more fully reduce the surface tension of the oil-water interface, help improve the mixing effect, and promote the penetration and absorption effect on the skin.

[0018] Although the amount of plum blossom extract and chlorella extract used is very small, they can still form a special combination in this special system, thereby effectively alleviating cell abnormalities induced by hydrogen peroxide, inhibiting the substitution reaction between the oxygen atoms of oxidized enzymes and the aromatic rings, and strongly slowing down the decomposition of related collagen in cells, reducing cell aging, and inhibiting the production of melanin in cells.

[0019] Preferably, the phase A also contains 0.1-1% low molecule sugar.

[0020] Preferably, the small molecule low sugar is at least a mixture of one or more of oligofructose, sucrose, glucose and fructose.

[0021] Preferably, the small molecule low sugar is oligofructose, sucrose, glucose, and fructose; in terms of the mass percentage of the small molecule low sugar, sucrose is 1-5%, fructose is 0.5-1%, glucose is 0.1-0.5%, and oligofructose is added to make up the balance to 100%.

[0022] Due to its own structure, small molecule low sugar can be easily absorbed by the skin. By adopting the above technical solution, adding small molecule low sugar to the composition, and further selecting the type and proportion of small molecule low sugar, there is a better coordination effect with baobab seed extract and alpine edelweiss callus extract.

[0023] First, small molecule low sugar is mixed with baobab seed extract and alpine edelweiss callus extract to form a special gel structure with water. The baobab seed extract and alpine edelweiss callus extract are absorbed by the skin along with the small molecule low sugar and form a film on the surface, thereby achieving a good moisturizing and water-locking effect.

[0024] Secondly, the mixture of small molecule low sugar with baobab seed extract and alpine edelweiss callus extract can proliferate beneficial bacteria, enhance the competitive advantage of beneficial bacteria over harmful bacteria in the fight for nutrients, and help the growth of beneficial bacteria, thereby effectively enhancing and repairing the skin's ecological flora microbial barrier, enabling it to effectively absorb more active substances and have better skin condition.

[0025] Preferably, in the phase E, the skin conditioner B comprises at least one of VC or VC derivatives, and the antioxidant B comprises at least ergothioneine.

[0026] Preferably, the skin conditioning agent B is 3-o-ethyl ascorbic acid, and the antioxidant B is ergothioneine.

[0027] By adopting the above technical scheme, under the combination of the dual-phase super antioxidant structure of ergothioneine in the water phase and dimethylmethoxychromanol in the oil phase, VC and VC derivatives can greatly maintain their own activity and exert the maximum effect, thereby achieving a good effect of strong whitening.

[0028] Preferably, the phase F further comprises an alcohol solvent, lactic acid and water coordinated with the chlorella extract, and the chlorella extract, the alcohol solvent, lactic acid and water are mixed in a mass ratio of 1: (35-40): (0.2-0.5): (80-90) to form a chlorella mixture.

[0029] By adopting the above technical scheme, the chlorella extract is pre-mixed with the alcohol solvent, lactic acid and water to prepare a chlorella mixture, which is convenient for preserving the active substances of the chlorella extract and is convenient for subsequent more sufficient and rapid coordination with the plum blossom extract, the fermentation product of Candida albicans / glucose / rapeseed oleic acid methyl ester and avocado tree fat, thereby helping to improve the mixing effect.

[0030] Preferably, the F phase further comprises cyclodextrin coordinated with plum blossom extract, and the cyclodextrin and plum blossom extract form a plum blossom mixture; based on the mass percentage of the plum blossom mixture, the plum blossom extract is 5-10%, and the cyclodextrin supplements the balance to 100%.

[0031] By adopting the above technical scheme, cyclodextrin is used to encapsulate plum blossom extract to form a plum blossom mixture, which is also for the purpose of enabling a more complete coordination effect with the subsequent mixture of Candida albicans / glucose / rapeseed methyl ester fermentation products, avocado butter, and Chlorella, further limiting cell RCS-induced damage, thereby more effectively playing the role of whitening the skin and repairing the barrier.

[0032] In a second aspect, the present application provides a method for preparing a repairing and whitening composition, using the following technical solution:

[0033] A method for preparing a repairing and whitening composition comprises the following steps:

[0034] Step 1: Heat the raw materials of phase A and phase D to 75-85°C respectively, dissolve until uniform, and obtain phase A and phase D for later use;

[0035] Step 2: Mix phase B, phase C and phase A, and stir at 75-85°C until uniform;

[0036] Step 3: Continue to add phase D and mix until uniform;

[0037] Step 4: Cool down to 55-65°C, add phase E, and mix until uniform;

[0038] Step 5: Cool down to 40-50°C, add phase F, and mix until uniform; obtain the finished product.

[0039] By adopting the above technical scheme, various raw materials are mixed evenly in a specific order, so as to achieve a better mixing effect, thereby giving full play to the coordination effect, having better whitening and repairing effects, and obtaining a more stable composition.

[0040] Preferably, step 3, step 4 and step 5 are performed under vacuum conditions, and the vacuum conditions are between -0.1 and -0.06.

[0041] In summary, this application has the following beneficial effects:

[0042] 1. The composition provided in the present application is an essence with the appearance and texture of a lotion, which is quickly absorbed and non-greasy; and can greatly reduce the amount of active ingredients used, thereby reducing the pressure on the skin barrier; and also fully amplifies the effects of the active ingredients through special combination and coordination, so that daily use can repair the barrier and whiten the skin, achieving multiple goals at one stroke.

[0043] 2. This application uses a special formula structure, and the fermentation products of Candida albicans / glucose / rapeseed methyl ester, avocado butter, chlorella extract, and plum blossom extract provide a special skin feel. Compared with most polyethylene, polyglycerol, and sucrose products on the market, the skin feel is lighter and the stability is also excellent. This formula system has a more obvious penetration addition, allowing the active ingredients to better exert their combined brightening and repairing effects.

[0044] 3. With the cooperation of baobab extract, small molecule polysaccharides and alpine edelweiss callus extract, it can provide comprehensive protection for the skin from repair to moisturizing, allowing the skin to maintain long-term life metabolism and purification and repair capabilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 The diagram is a diagram of the state of one of the volunteers who used the repairing and whitening composition of Example 1 at D0, D14, and D28. DETAILED DESCRIPTION

[0046] The present application is further described in detail below with reference to the accompanying drawings and embodiments.

[0047] All products used in the following examples and comparative examples are commercially available products.

[0048] Repairing and whitening composition:

[0049] 1. Phase A:

[0050] (1) Moisturizer A:

[0051] The moisturizer A may be any one or more of 1,2-hexanediol, 1,3-propylene glycol, caprylyl glycol, caprylylhydroxamic acid, sodium polyglutamate, etc., mixed.

[0052] Calculated by mass percentage of the repairing and whitening composition, the moisturizing agent A may be any value of 0.1%, 0.5%, 1.0%, 1.5%, 2.0%, 2.5%, 3.0%, etc.

[0053] (2) Stabilizer:

[0054] The stabilizer can be a mixture of one or more of hydroxyethylpiperazineethane sulfonic acid, dipotassium hydrogen phosphate, potassium dihydrogen phosphate, etc.

[0055] Calculated by mass percentage of the repairing and whitening composition, the stabilizer may be any value of 0.1%, 0.3%, 0.5%, 1.0%, 1.3%, 1.8%, 2.0%, etc.

[0056] (3) Antioxidant A:

[0057] The antioxidant A can be a mixture of one or more of p-hydroxyacetophenone, glutathione, ectoine, etc.

[0058] Calculated by mass percentage of the repairing and whitening composition, the antioxidant A may be any value among 0, 0.1%, 0.3%, 0.5%, 1.0%, etc.

[0059] (4) Small molecules and low sugar:

[0060] Small molecule low sugars can be a mixture of one or more of oligofructose, sucrose, glucose, fructose, etc.

[0061] Calculated by mass percentage of the repairing and whitening composition, the small molecule low sugar may be any value among 0, 0.1%, 0.3%, 0.5%, 1.0%, etc.

[0062] When the small molecule low sugar is oligofructose, sucrose, glucose, and fructose, the mass percentage of the small molecule low sugar is 1-5% for sucrose, 0.5-1% for fructose, 0.1-0.5% for glucose, and the balance of oligofructose is 100%; specifically, sucrose can be any value among 1%, 2%, 3%, 4%, 5%, etc., fructose can be any value among 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0%, etc., and glucose can be any value among 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, etc.

[0063] 2. Phase B:

[0064] (1) Moisturizer B:

[0065] The moisturizing agent B may be any one or more of 1,2-hexanediol, 1,3-propylene glycol, propanol, etc., mixed.

[0066] Calculated by mass percentage of the repairing and whitening composition, the moisturizer B may be any value of 3%, 3.5%, 4.0%, 4.5%, 5.0%, 5.5%, 6.0%, 6.5%, 7.0%, 7.5%, 8.0%, etc.

[0067] (2) Thickener A:

[0068] Thickener A can be a mixture of one or more of ammonium polyacryloyldimethyltaurate, polyacrylate cross-linked polymer-6, carbomer, etc.

[0069] In terms of mass percentage of the repairing and whitening composition, the thickener A may be any value among 0, 0.1%, 0.3%, 0.5%, 1.0%, etc.

[0070] 3. Phase C:

[0071] Skin Conditioner A:

[0072] The skin conditioning agent A can be a mixture of one or more of polyglyceryl-6, polyglyceryl-10, polyglyceryl-3, etc.

[0073] Calculated by mass percentage of the repairing and whitening composition, the skin conditioning agent A may be any value of 0.01%, 0.1%, 0.3%, 0.5%, 1.0%, 1.5%, 2.0%, 2.5%, 3.0%, etc.

[0074] 4. Phase D:

[0075] (1) Emollients:

[0076] The emollient may be a mixture of one or more of C15-19 alkane, dicaprylyl carbonate, rice (ORYZASATIVA) bran oil, isononyl isononanoate, caprylic / capric glycerides, and the like.

[0077] Calculated by mass percentage of the repairing and whitening composition, the emollient may be any value among 3%, 3.5%, 4.0%, 4.5%, 5.0%, 5.5%, 6.0%, 6.5%, 7.0%, 7.5%, 8.0%, etc.

[0078] (2) The fermentation product of Candida albicans / glucose / rapeseed methyl ester, in terms of mass percentage of the repair and whitening composition, can be any value among 1.0%, 1.5%, 2.0%, 2.5%, 3.0%, 3.5%, 4.0%, 4.5%, 5.0%, etc.

[0079] (3) Avocado tree (BUTYROSPERMUM PARKII) fruit fat, calculated as a percentage by mass of the repair and whitening composition, can be any value among 0.1%, 0.3%, 0.5%, 1.0%, 1.3%, 1.8%, 2.0%, etc.

[0080] (4) The content of dimethylmethoxychromanol in the repairing and whitening composition may be any value such as 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, etc., based on the mass percentage of the repairing and whitening composition.

[0081] 5. Phase E:

[0082] (1) Skin conditioning agent B:

[0083] The skin conditioning agent B may be VC or one of VC derivatives.

[0084] Calculated by mass percentage of the repairing and whitening composition, the skin conditioning agent B may be any value of 0.5%, 1.0%, 1.5%, 2.0%, 2.5%, 3.0%, 3.5%, 4.0%, 4.5%, 5.0%, etc.

[0085] (2) Thickener B:

[0086] The thickener B may be a mixture of one or more of ammonium acryloyldimethyltaurate / VP copolymer, ammonium polyacryloyldimethyltaurate, and the like.

[0087] In terms of mass percentage of the repairing and whitening composition, the thickener B may be any value of 0.01%, 0.05%, 0.1%, 0.3%, 0.5%, 0.7%, 1.0%, etc.

[0088] (3) Antioxidant B:

[0089] The antioxidant B can be a mixture of one or more of ergothioneine, tocopherol, etc.

[0090] Calculated by mass percentage of the repairing and whitening composition, the antioxidant B may be any value among 0.01%, 0.03%, 0.05%, 0.07%, 0.1% and the like.

[0091] 6. Phase F:

[0092] (1) The hydrolyzed rice protein, in terms of the mass percentage of the repairing and whitening composition, can be any value among 0.01%, 0.03%, 0.05%, 0.07%, 0.1%, etc.

[0093] (2) Chlorella Vulgaris Extract:

[0094] In terms of mass percentage of the repairing and whitening composition, the Chlorella extract may be any value among 0.01%, 0.03%, 0.05%, 0.07%, 0.1% and the like.

[0095] The chlorella extract can also be mixed with an alcohol solvent, lactic acid and water in a mass ratio of 1: (35-40): (0.2-0.5): (80-90), stirred and mixed to form a chlorella mixture, based on the mass of the chlorella extract.

[0096] The mass ratio of Chlorella extract to alcohol solvent, lactic acid and water can be 1:35:0.2:80, 1:36:0.25:83, 1:37:0.3:85, 1:38:0.35:87, 1:39:0.4:89, 1:40:0.5:90, etc.

[0097] (3) The Prunus mume flower extract, in terms of the mass percentage of the repair and whitening composition, can be any value among 0.01%, 0.03%, 0.05%, 0.07%, 0.09%, 0.10%, 0.11%, 0.13%, 0.15%, 0.17%, 0.2%, etc.

[0098] (4) The yeast lysate extract, in terms of mass percentage of the repair and whitening composition, can be any value among 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, etc.

[0099] (5) The baobab (Adansonia digitata) seed extract, in terms of mass percentage of the repair and whitening composition, can be any value among 0.00001%, 0.00003%, 0.00005%, 0.00007%, 0.0001%, etc.

[0100] (6) The extract of callus tissue of Leontopodium alpinum, in terms of the mass percentage of the repair and whitening composition, can be any value among 0.0001%, 0.0005%, 0.001%, 0.002%, 0.003%, 0.004%, 0.005%, etc.

[0101] (7) The hops (HUMULUS LUPULUS) extract, in terms of the mass percentage of the repair and whitening composition, may be any value of 0.00001%, 0.00003%, 0.00005%, 0.00007%, 0.0001%, etc.

[0102] Preparation Example

[0103] Preparation Example 1

[0104] A plum blossom mixture comprises 5-10% of plum blossom extract according to mass percentage, and cyclodextrin is used to make up the balance to 100%.

[0105] Specifically, in this preparation example, the plum blossom mixture includes 8% plum blossom extract and 92% cyclodextrin in terms of mass percentage. The cyclodextrin is preferably hydroxypropyl cyclodextrin.

[0106] The preparation method of the plum blossom mixture comprises the following steps:

[0107] Step (1): Add hydroxypropyl cyclodextrin into water and stir until it is completely dissolved to obtain a hydroxypropyl cyclodextrin aqueous solution.

[0108] The mass ratio of hydroxypropyl cyclodextrin to water is 1:5.

[0109] The plum blossom extract was added to anhydrous ethanol and shaken until completely dissolved to obtain a plum blossom extract solution; the mass ratio of anhydrous ethanol to the plum blossom extract was 1:200.

[0110] Step (2): Place the hydroxypropyl cyclodextrin aqueous solution in a 40° C. water bath and stir at a speed of 600 r / min, then dropwise add the plum blossom extract solution.

[0111] After the dropwise addition was completed, stirring was continued for 2 hours, allowed to stand for 2 hours, and then stirred for another hour.

[0112] Step (3): placing the material of step (2) in a water bath at 55° C. to concentrate under reduced pressure to recover ethanol until the solution is translucent and viscous, placing it in a water bath at 75° C. to further concentrate, and vacuum drying the concentrated solution to obtain a plum blossom mixture.

[0113] Example

[0114] Example 1

[0115] A repairing and whitening composition, comprising the following components in percentage by mass:

[0116] Phase A: 0.85% humectant A, 0.5% stabilizer, 0.401% antioxidant A, 0.3% small molecule low sugar, and water is finally added to the balance to 100% as needed.

[0117] Moisturizer A is 0.5% 1,2-hexanediol, 0.18% 1,3-propylene glycol, 0.105% caprylyl glycol, 0.015% caprylhydroxamic acid, and 0.05% sodium polyglutamate.

[0118] The stabilizer is hydroxyethylpiperazineethane sulfonic acid.

[0119] Antioxidant A is 0.3% p-hydroxyacetophenone and 0.101% ectoine.

[0120] Small molecule low sugars include oligofructose, sucrose, glucose and fructose; in terms of the mass percentage of small molecule low sugars, sucrose is 3%, fructose is 0.8%, glucose is 0.2%, and low fructose is 96%.

[0121] Phase B: 0.95% thickener A, 5% humectant B.

[0122] Thickener A is 0.8% ammonium polyacryloyldimethyltaurate and 0.15% polyacrylate crosspolymer-6.

[0123] Humectant B is 1,3-propylene glycol.

[0124] Phase C: 2% skin conditioning agent A, specifically polyglyceryl-6.

[0125] Phase D: 6.13965% emollients, 2.7% Candida albicans / glucose / methyl rapeseed oleate ferment, 0.3% avocado butter, 0.02% dimethylmethoxychromanol, 0.00035% tocopherol.

[0126] The emollients are 4% C15-19 alkane, 0.99965% dicaprylyl carbonate, 0.5% rice bran oil, 0.48% isononyl isononanoate, and 0.16% caprylic / capric glycerides.

[0127] Phase E: 2% skin conditioner B, 0.1% thickener B, 0.04% antioxidant B.

[0128] The skin conditioning agent B is 3-o-ethyl ascorbic acid, the thickener B is ammonium acryloyldimethyltaurate / VP copolymer, and the antioxidant B is ergothioneine.

[0129] Phase F: 0.01% hydrolyzed rice protein, 0.012% chlorella extract, 0.072% plum blossom extract, 0.1225% yeast lysate extract, 0.0000625% baobab seed extract, 0.001% alpine edelweiss callus extract, 0.0000975% hops extract.

[0130] Specific:

[0131] The hydrolyzed rice protein is also mixed with water, glycerine and sodium benzoate to form a hydrolyzed rice protein mixture. In the mass percentage of the hydrolyzed rice protein mixture, the hydrolyzed rice protein is 0.5%, the glycerine is 30%, the sodium benzoate is 0.5%, and the water is 69%.

[0132] The chlorella extract is also stirred and mixed with an alcohol solvent, lactic acid and water in a mass ratio of 1:37.5:0.25:86.25 to form a chlorella mixture; the alcohol solution is 1,3-propylene glycol.

[0133] The plum blossom extract is present in the repairing and whitening composition in the form of the plum blossom mixture of Preparation Example 1. In terms of the mass percentage of the repairing and whitening composition, the plum blossom extract is 0.072% and the hydroxypropyl cyclodextrin is 0.828%.

[0134] The yeast lysate extract is also mixed with water, phenoxyethanol and tetrasodium EDTA to form a yeast lysate extract mixed solution. In terms of mass percentage of the yeast lysate extract mixed solution, the yeast lysate extract is 24.5%, the phenoxyethanol is 1%, the tetrasodium EDTA is 0.1% and the water is 74.4%.

[0135] The baobab seed extract is also mixed with water, glycerin and phenoxyethanol to form a baobab seed extract mixed solution. In terms of mass percentage, the baobab seed extract is 1.25%, the phenoxyethanol is 1.5%, the glycerin is 30% and the water is 67.25%.

[0136] The alpine edelweiss callus extract is also mixed with glycerin, citric acid and xanthan gum to form an alpine edelweiss callus extract mixed solution. In terms of mass percentage of the alpine edelweiss callus extract mixed solution, the alpine edelweiss callus extract is 20%, the citric acid is 0.3%, the xanthan gum is 0.3% and the glycerin is 79.4%.

[0137] The hop extract is also mixed with 1,3-propylene glycol, glycerol and citric acid to form a hop extract mixed solution. In terms of mass percentage of the hop extract mixed solution, the hop extract is 1.95%, the 1,3-propylene glycol is 58.71%, the glycerol is 39.14% and the citric acid is 0.2%.

[0138] The specific amounts of each raw material are summarized in Table 1.

[0139] A method for preparing a repairing and whitening composition comprises the following steps:

[0140] Step 1: Heat the raw materials of phase A and phase D to 80°C respectively, dissolve until uniform, and obtain phase A and phase D for later use.

[0141] Pre-wet the raw materials of phase B to obtain phase B for standby use.

[0142] Step 2: Add phase B and phase C into phase A and mix at 80°C until uniform.

[0143] Step 3: Continue to add phase D to the material in step 2 (maintain 80°C) and mix, maintain vacuum (-0.08), and stir until uniform.

[0144] Then homogenize for another 5 minutes, and then stir and cool down.

[0145] Step 4: Cool to 60°C, add phase E, maintain vacuum (-0.08), mix until uniform, and homogenize for 3 minutes, then stir and cool.

[0146] Step 5: Cool to 45°C, add phase F, maintain vacuum (-0.08), and mix until uniform.

[0147] Step 6: Cool down to below 40°C, take samples for testing, filter (50-300 mesh) after passing the test, and discharge the sample to obtain the finished product.

[0148] Table 1

[0149]

[0150]

[0151]

[0152] Example 2

[0153] A repairing and whitening composition, which is different from Example 1 in that the small molecule low sugar is omitted and the amount of small molecule low sugar is supplemented with water in phase A.

[0154] Example 3

[0155] A repairing and whitening composition, which is different from Example 1 in that the small molecule low sugar is oligofructose.

[0156] Example 4

[0157] A repairing and whitening composition is different from Example 1 in that antioxidant B (ergothioneine) and dimethylmethoxychromanol are omitted, and the original amount of antioxidant B and dimethylmethoxychromanol is supplemented with water in phase A.

[0158] Example 5

[0159] A repairing and whitening composition, which is different from Example 1 in that the chlorella extract is directly added to the repairing and whitening composition; that is, it is not added in the form of a chlorella mixture mixed with an alcohol solvent, lactic acid and water, and the omitted alcohol solvent, lactic acid and water are supplemented with the water of phase A.

[0160] Example 6

[0161] A repairing and whitening composition, which is different from Example 1 in that the plum blossom extract is directly added to the repairing and whitening composition; that is, it is not added in the form of a plum blossom mixture as in Preparation Example 1, and the omitted amount of hydroxypropyl cyclodextrin is supplemented with water in phase A.

[0162] Comparative Example

[0163] Comparative Example 1

[0164] A repairing and whitening composition, which is different from Example 1 in that the fermentation product of Candida albicans / glucose / rapeseed oleic acid methyl ester is replaced by a yeast fermentation product extract.

[0165] Comparative Example 2

[0166] A repairing and whitening composition, which is different from Example 1 in that avocado tree butter is replaced by coconut (COCOS NUCIFERA) seed butter.

[0167] Comparative Example 3

[0168] A repairing and whitening composition, which is different from Example 1 in that the Chlorella extract is replaced by a Rhodophyta extract.

[0169] Comparative Example 4

[0170] A repairing and whitening composition, which is different from Example 1 in that the plum blossom extract is replaced by a jasmine flower extract.

[0171] Comparative Example 5

[0172] A repairing and whitening composition, which is different from Example 1 in that the fermentation product of Candida albicans / glucose / rapeseed oleic acid methyl ester is 0.1%, avocado butter is 0.084%, chlorella extract is 1.5%, and plum extract is 1.4%.

[0173] Performance testing

[0174] 1. Efficacy test: Volunteers aged 25-35 were selected and randomly divided into 11 groups. Each group consisted of 10 volunteers. One group of volunteers used a repairing and whitening composition in Examples 1-6 and Comparative Examples 1-5.

[0175] On the first day, the volunteers cleaned their arms with clean water in an environment with a temperature of 25°C and a humidity of 65%. A moisture tester, a transepidermal water loss meter, and a skin colorimeter were used to detect the water content, transepidermal water loss rate, and ITA° value of the test area. These were the initial values.

[0176] Then use 3g of the repairing and whitening composition after cleansing every morning and evening. After using it for 28 days, test the water content, transepidermal water loss rate and ITA° value again. This is the test value.

[0177] Calculate the rate of change according to the following formula and record it in Table 2.

[0178]

[0179] 2. Effect of Microbial Flora:

[0180] 1. Test samples: the repairing and whitening compositions of Examples 1-6 and Comparative Examples 1-5.

[0181] 2. Select strains: commercially available Staphylococcus epidermidis (beneficial bacteria) and commercially available Staphylococcus aureus (harmful bacteria).

[0182] 3. Test methods:

[0183] Take 2g of the test sample and add it to the LB culture medium. Adjust the pH of the culture medium to the optimal pH value for strain growth. Then inoculate the strain into the culture medium at a 5% inoculation rate and incubate at 37°C. Read the absorbance value A (OD value) of each culture medium at 0h and 24h of inoculation, and set a blank LB culture medium as the control group.

[0184] Calculate the growth rate according to the formula and record it in Table 2. Compare the growth rates of the control group and the experimental group.

[0185] 3. Human body evaluation: Questionnaires were distributed to the volunteers in Test 1, asking whether they thought the repair and whitening composition had a moisturizing effect, a whitening effect, and a good skin feel after using it for 28 days. The number of volunteers who chose "yes" was recorded in Table 2.

[0186] IV. Stability: The repairing and whitening compositions of Examples 1-6 and Comparative Examples 1-5 were stored at room temperature and 55°C for 6 months. After being taken out, the appearance of the repairing and whitening compositions was observed to see if there was any abnormality. The data are recorded in Table 2.

[0187] Table 2

[0188]

[0189]

[0190] According to the comparison of the test data of Examples 1-6 and Comparative Examples 1-5 in Table 2, it can be seen that the repairing and whitening composition prepared in the present application has good skin barrier repairing and whitening effects, and provides users with good skin feel. Although the repairing and whitening composition of the present application does not have an additional emulsifier, it still has good stability.

[0191] Figure 1 The following are the status diagrams of one of the volunteers who used the repairing and whitening composition of Example 1 at D0, D14, and D28. Figure 1 It can be seen that after using the repairing and whitening composition of Example 1, the volunteer's skin became significantly whiter, his complexion became better, and it became more hydrated.

[0192] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A repairing and whitening composition, characterized in that: In terms of mass percentage, it includes the following raw materials: Phase A: 0.1-3% humectant A, 0.1-2% stabilizer, 0-1% antioxidant A, and water to make up the balance; humectant A is 1,2-hexanediol, 1,3-propylene glycol, caprylyl glycol, caprylhydroxamic acid, sodium polyglutamate; stabilizer is hydroxyethylpiperazineethanesulfonic acid; antioxidant A is tetrahydromethylpyrimidine carboxylic acid and p-hydroxyacetophenone; Phase B: 0.1-1% thickener A, 3-8% humectant B; thickener A is ammonium polyacryloyldimethyltaurate and polyacrylate cross-linked polymer-6; humectant B is 1,3-propylene glycol; Phase C: 0.01-3% skin conditioning agent A; skin conditioning agent A is polyglycerol-6; Phase D: 3-8% emollient, 2-4% Candida albicans / glucose / rapeseed methyl ester fermentation product, 0.1-0.5% avocado butter, 0.01-0.5% dimethyl methoxychromanol; emollients are C15-19 alkane, dicaprylyl carbonate, tocopherol, rice bran oil, isononyl isononanoate, caprylic / capric glycerides; Phase E: 0.5-5% skin conditioner B; 0.01-1% thickener B; 0.01-0.1% antioxidant B; skin conditioner B is 3-o-ethyl ascorbic acid; thickener B is ammonium acryloyldimethyltaurate / VP copolymer; antioxidant B is ergothioneine; Phase F: 0.01-0.1% hydrolyzed rice protein, 0.01-0.03% chlorella extract, 0.05-0.1% plum extract, 0.01-0.5% yeast lysate extract, 0.00001-0.0001% baobab seed extract, 0.0001-0.005% alpine edelweiss callus extract, 0.00001-0.0001% hop extract; Phase F also includes an alcohol solvent, lactic acid and water that are matched with the chlorella extract. The chlorella extract, the alcohol solvent, the lactic acid and the water are mixed in a mass ratio of 1: (35-40): (0.2-0.5): (80-90) to form a chlorella mixture; Phase F also contains cyclodextrin coordinated with plum blossom extract, and the cyclodextrin and plum blossom extract form a plum blossom mixture; based on the mass percentage of the plum blossom mixture, the plum blossom extract is 5-10%, and the cyclodextrin supplements the balance to 100%.

2. The repairing and whitening composition according to claim 1, characterized in that: The phase A also contains 0.1-1% low molecule sugar.

3. The repairing and whitening composition according to claim 2, characterized in that: The small molecule low sugar is at least a mixture of one or more of oligofructose, sucrose, glucose and fructose.

4. The repairing and whitening composition according to claim 3, characterized in that: The small molecule low sugars are oligofructose, sucrose, glucose and fructose; in terms of the mass percentage of the small molecule low sugars, sucrose is 1-5%, fructose is 0.5-1%, glucose is 0.1-0.5%, and oligofructose is added to make up the balance to 100%.

5. A method for preparing the repairing and whitening composition according to any one of claims 1 to 4, characterized in that: The following steps are involved: Step 1: Heat the raw materials of phase A and phase D to 75-85°C respectively, dissolve until uniform, and obtain phase A and phase D for later use; Step 2: Mix phase B, phase C and phase A, and stir at 75-85°C until uniform; Step 3: Continue to add phase D and mix until uniform; Step 4: Cool down to 55-65°C, add phase E, and mix until uniform; Step 5: Cool down to 40-50°C, add phase F, and mix until uniform; obtain the finished product.

6. The method for preparing the repairing and whitening composition according to claim 5, characterized in that: The steps 3, 4 and 5 are carried out under vacuum conditions.

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