Repair essence for brightening skin color and preparation method thereof

Abstract

The invention provides a repairing essence for brightening skin color, which comprises the following components: phase A: 1, 2-pentanediol, 1, 2-hexanediol, caprylyl glycol and panthenol; phase B: plant active extract, hydrolyzed hyaluronic acid and lactobacillus fermentation lysate; phase C: ceramide, squalane, adenosine, hydrolyzed wheat protein and active peptide; a phase D: pomegranate seed oil, caprylic acid / capric triglyceride, polydimethylsiloxane, hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer, and PPG-13-decyl tetradecyl alcohol polyether-24; and deionized water. The invention further provides a preparation method of the repairing essence for brightening the skin color. The essence disclosed by the invention is mild, non-irritant and good in skin feeling when being used, and meanwhile, the essence effectively enhances skin barrier, repairs damaged skin, brightens skin color and improves darkness.

Description

Technical Field

[0001] The invention belongs to the technical field of beauty cosmetics, and particularly relates to a repairing essence for brightening skin tone and a preparation method thereof. Background Art

[0002] In the prior art, skin-lightening repair serums usually contain a variety of active ingredients, aiming to achieve skin lightening and repair, including: Galactomyces fermentation product filtrate, a comprehensive ingredient rich in vitamins, minerals, amino acids and organic acids, which can penetrate deep into the skin and have the effects of brightening the skin and anti-aging. Niacinamide, an ingredient with significant whitening effect, is usually added in an amount of more than 2% to ensure its whitening effect. Ascorbyl glucoside is mainly used to synergize with niacinamide to enhance the whitening effect. Plant extracts: such as lavender oil, peony root extract, lime peel extract, etc., these ingredients help to condition the skin. Moisturizers: such as glycerin, PEG / PPG / polybutylene glycol, etc., these ingredients help to maintain the moisture and softness of the skin.

[0003] Although the current skin-lightening repair serum performs well in brightening the skin, it still has some shortcomings: the multiple additions of effective ingredients make the product slightly insufficient in moisturizing performance, and the complexity of the ingredients may bring potential irritation risks to some sensitive skin. Complex formulas may lead to increased costs: Since the serum contains multiple active ingredients, its preparation process is complicated, which may lead to increased costs.

[0004] Future research and development should focus on simplifying formulations, improving product efficacy, reducing costs, and reducing irritation to meet a wider range of consumer needs. Summary of the invention

[0005] The present invention provides a skin-lightening repair essence and a preparation method thereof, which is mild and non-irritating and has a good skin feel when used, while effectively enhancing the skin barrier, repairing damaged skin, brightening the skin tone, and improving dullness.

[0006] The present invention provides a repairing essence for brightening skin tone, comprising the following ingredients:

[0007] Phase A: 1,2-pentanediol, 1,2-hexanediol, caprylyl glycol, panthenol;

[0008] Phase B: plant active extracts, hydrolyzed hyaluronic acid, lactic acid bacteria fermentation lysate;

[0009] Phase C: ceramide, squalane, adenosine, hydrolyzed wheat protein, active peptides;

[0010] Phase D: Punica Granatum Seed Oil, Caprylic / Capric Triglyceride, Dimethicone, Hydroxyethyl Acrylate / Sodium Acryloyldimethyl Taurate Copolymer, PPG-13-Decylteteth-24;

[0011] and deionized water.

[0012] Furthermore, the plant active extract is selected from one or more of purslane extract, asiatica glycoside and turmeric root extract.

[0013] Furthermore, the ceramide is selected from one or more of ceramide NP, ceramide AS, ceramide AP and ceramide NS / ceramide NG.

[0014] Furthermore, the active peptide is selected from one or more of palmitoyl dipeptide-7, palmitoyl tripeptide-1, palmitoyl tripeptide-8, palmitoyl tetrapeptide-7, palmitoyl pentapeptide-4, palmitoyl hexapeptide-12, palmitoyl hexapeptide-14, and palmitoyl hexapeptide-15.

[0015] Preferably, the skin-lightening repair serum further comprises a preservative.

[0016] Furthermore, the preservative is selected from one or more of phenoxyethanol, p-hydroxyacetophenone, benzyl alcohol, sodium benzoate and potassium sorbate.

[0017] The present invention provides a repairing essence for brightening skin tone, which comprises the following components by mass percentage:

[0018] Phase A: 2-6% 1,2-pentanediol, 3-12% 1,2-hexanediol, 0.3-3.5% caprylyl glycol, 2-10% panthenol;

[0019] Phase B: 1.5-8.5% plant active extract, 2-8% hydrolyzed hyaluronic acid, 0.5-15% lactic acid bacteria fermentation lysate;

[0020] Phase C: 0.6-2.5% ceramide, 1-7% squalane, 0.1-3.5% adenosine, 0.1-4% hydrolyzed wheat protein, 0.5-5% active peptide;

[0021] Phase D: 0.2-2% pomegranate seed oil, 1-7% caprylic / capric triglyceride, 0.1-13% dimethicone, 0.1-3% hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer, 0.01-1.5% PPG-13-decyltetradeceth-24;

[0022] and the balance is deionized water.

[0023] Preferably, the skin-lightening repair essence further comprises 0.01-0.15% preservative by mass.

[0024] The preservative is selected from one or more of phenoxyethanol, p-hydroxyacetophenone, benzyl alcohol, sodium benzoate and potassium sorbate.

[0025] The plant active extract is selected from one or more of purslane extract, asiatica glycoside and turmeric root extract.

[0026] The ceramide is selected from one or more of ceramide NP, ceramide AS, ceramide AP and ceramide NS / ceramide NG.

[0027] The active peptide is selected from one or more of palmitoyl dipeptide-7, palmitoyl tripeptide-1, palmitoyl tripeptide-8, palmitoyl tetrapeptide-7, palmitoyl pentapeptide-4, palmitoyl hexapeptide-12, palmitoyl hexapeptide-14 and palmitoyl hexapeptide-15.

[0028] The present invention provides a repairing essence for brightening skin tone, which comprises the following components by mass percentage:

[0029] Phase A: 2-6% 1,2-pentanediol, 3-12% 1,2-hexanediol, 0.3-3.5% caprylyl glycol, 2-10% panthenol;

[0030] Phase B: 1.5-8.5% plant active extract, 2-8% hydrolyzed hyaluronic acid, 0.5-15% lactic acid bacteria fermentation lysate;

[0031] Phase C: 0.6-2.5% ceramide, 1-7% squalane, 0.1-3.5% adenosine, 0.1-4% hydrolyzed wheat protein, 0.5-5% active peptide;

[0032] Phase D: 0.2-2% pomegranate seed oil, 1-7% caprylic / capric triglyceride, 0.1-13% dimethicone, 0.1-3% hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer, 0.01-1.5% PPG-13-decyltetradeceth-24;

[0033] and the balance of deionized water;

[0034] The plant active extract is selected from purslane extract, asiatica glycoside and turmeric root extract;

[0035] The mass percentages of the purslane extract, asiatica glycoside and turmeric root extract in the skin-lightening repair essence are 1-4%, 0.1-2% and 0.4-2.5% respectively;

[0036] The ceramide is selected from ceramide AP and ceramide NS / ceramide NG;

[0037] The mass percentages of the ceramide AP and ceramide NS / ceramide NG in the skin-lightening repair essence are 0.1-0.5% and 0.5-2% respectively;

[0038] The active peptide is selected from palmitoyl tripeptide-1 and palmitoyl tetrapeptide-7;

[0039] The mass percentages of the palmitoyl tripeptide-1 and the palmitoyl tetrapeptide-7 in the repairing essence for brightening skin tone are 0.25-2.5% and 0.25-2.5% respectively.

[0040] Preferably, the skin-lightening repair essence further comprises 0.01-0.15% preservative by mass.

[0041] The preservative is phenoxyethanol.

[0042] The present invention provides a method for preparing a repairing essence for brightening skin tone, comprising the following preparation steps:

[0043] (1) Weigh each ingredient;

[0044] (2) Dissolve component A in deionized water and stir to mix evenly;

[0045] (3) Mixing component C with the material obtained in step (2), heating to 30-50° C., and stirring evenly;

[0046] (4) The material obtained in step (3) is pumped into an emulsifying pot, and then component D is slowly added, heated to 60-85° C., stirred for 30-50 min, and then high-pressure homogenized for 5-10 min to ensure thorough mixing;

[0047] (5) Cool the material to 35-45°C, add component B, stir and mix evenly to obtain the product.

[0048] Preferably, the temperature of step (2) is 15-30°C.

[0049] Preferably, the stirring in step (3) is maintained for 15-30 minutes.

[0050] Preferably, the mixture is mixed evenly in step (4) and then kept warm for 25-40 minutes.

[0051] Preferably, the cooling in step (5) is vacuum cooling.

[0052] The present invention provides use of the skin-lightening repairing essence in brightening skin color and / or repairing skin redness.

[0053] The beneficial technical effects of the present invention are:

[0054] The skin-lightening repair essence of the present invention has a high content of active ingredients, a good skin feel, is safe and non-irritating, and is suitable for all kinds of people. Experiments show that the essence of the present invention has significant skin barrier repairing effects and moisturizing effects, and can effectively brighten the skin and improve uneven skin tone. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 Water content of facial skin stratum corneum. DETAILED DESCRIPTION

[0056] In order to more fully understand the technical content of the present invention, the present invention will be further introduced and illustrated in conjunction with specific embodiments below; obviously, the embodiments described below are only part of the embodiments of the present invention, rather than all of the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0057] A skin-lightening repair serum comprising the following ingredients by mass percentage:

[0058] Phase A: 2-6% 1,2-pentanediol, 3-12% 1,2-hexanediol, 0.3-3.5% caprylyl glycol, 2-10% panthenol;

[0059] Phase B: 1.5-8.5% plant active extract, 2-8% hydrolyzed hyaluronic acid, 0.5-15% lactic acid bacteria fermentation lysate;

[0060] Phase C: 0.6-2.5% ceramide, 1-7% squalane, 0.1-3.5% adenosine, 0.1-4% hydrolyzed wheat protein, 0.5-5% active peptide;

[0061] Phase D: 0.2-2% pomegranate seed oil, 1-7% caprylic / capric triglyceride, 0.1-13% dimethicone, 0.1-3% hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer, 0.01-1.5% PPG-13-decyltetradeceth-24;

[0062] and the balance of deionized water;

[0063] The plant active extract is composed of 1-4% by weight of purslane extract, 0.1-2% by weight of asiatica glycoside and 0.4-2.5% by weight of turmeric root extract in the essence;

[0064] The ceramide is composed of 0.1-0.5% ceramide AP and 0.5-2% ceramide NS / ceramide NG by mass percentage in the essence;

[0065] The active peptides are composed of 0.25-2.5% by mass of palmitoyl tripeptide-1 and 0.25-2.5% by mass of palmitoyl tetrapeptide-7 in the essence.

[0066] Preferably, the skin-lightening repair essence further comprises 0.01-0.15% preservative by mass.

[0067] The preservative is phenoxyethanol.

[0068] A method for preparing a repairing essence for brightening skin tone, comprising the following preparation steps:

[0069] (1) Weigh each ingredient;

[0070] (2) Dissolve component A in deionized water and stir to mix evenly;

[0071] (3) Mixing component C with the material obtained in step (2), heating to 40° C., and stirring evenly;

[0072] (4) The material obtained in step (3) was pumped into an emulsifying pot, and then component D was slowly added, heated to 75° C., stirred for 40 minutes, and then high-pressure homogenized for 8 minutes to ensure thorough mixing;

[0073] (5) Cool the material to 40°C, add component B, stir and mix evenly to obtain the product;

[0074] The temperature of step (2) is 15-30°C;

[0075] After the stirring in step (3) is uniform, keep stirring for 15-30 minutes;

[0076] After the mixing in step (4) is uniformly carried out, the mixture is kept warm for 25-40 minutes;

[0077] The cooling in step (5) is vacuum cooling.

[0078] Table 1 Formulation of Examples 1 to 3 (wt%)

[0079]

[0080]

[0081] The preparation method of Examples 1-3 comprises the following steps:

[0082] (1) Weigh each ingredient;

[0083] (2) dissolving component A (1,2-pentanediol, 1,2-hexanediol, caprylyl glycol, panthenol) in deionized water and stirring to mix well;

[0084] (3) Component C (ceramide AP, ceramide NS / ceramide NG, squalane, adenosine, hydrolyzed wheat protein, palmitoyl tripeptide-1, palmitoyl tetrapeptide-7) is mixed with the material obtained in step (2), heated to 40° C., and stirred evenly;

[0085] (4) The material obtained in step (3) is pumped into an emulsifier, and then component D (pomegranate seed oil, caprylic / capric triglyceride, polydimethylsiloxane, hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer, PPG-13-decyltetradecyl alcohol polyether-24) is slowly added, heated to 75° C., stirred for 40 minutes, and then high-pressure homogenized for 8 minutes to ensure thorough mixing;

[0086] (5) Cooling the material to 40° C., adding component B (purslane extract, Centella asiatica glycoside, turmeric root extract, hydrolyzed hyaluronic acid, lactic acid bacteria fermentation lysate), stirring and mixing evenly, and obtaining;

[0087] The temperature of step (2) is 25°C;

[0088] After the stirring in step (3) is uniform, keep stirring for 20 minutes;

[0089] After the mixing in step (4) is uniform, the mixture is kept warm for 30 minutes;

[0090] The cooling in step (5) is vacuum cooling.

[0091] Table 2 Formula table of comparative examples 1 to 4 (wt%)

[0092]

[0093]

[0094] The preparation steps of the comparative example are the same as those of the embodiment.

[0095] 1. Red blood cell hemolysis test

[0096] The red blood cell hemolysis test is a traditional method for evaluating eye irritation and has been widely used in the study of cosmetic irritation. The test samples (Examples 1-3, Comparative Examples 1-4) were subjected to the red blood cell hemolysis test to test the sample mass concentration HC when 50% red blood cell hemolysis was caused. 50 And protein denaturation index DI. Calculate the L / D value of the test sample, L / D = HC 50 / DI. The test results show that the essences of Examples 1-3 and Comparative Examples 1-4 are non-irritating and have good safety.

[0097] 2. Effect Test

[0098] 1. Moisturizing and hydrating effect

[0099] Dehydrated skin will weaken its barrier function and be more vulnerable to damage, while well-hydrated skin is more resistant, so moisturizing is the basis for strengthening the skin barrier and repairing damaged skin. The moisturizing efficacy test uses the "Guidelines for Evaluation of Cosmetic Moisturizing Efficacy" QB / T 4256-2011 to determine the water content of the stratum corneum of the skin. Each group of 5 female testers, aged 22 to 35 years old, and all screening indicators meet the inclusion and exclusion criteria of the test. After cleansing the face in the morning and evening, the tester takes an appropriate amount of the essence of Examples 1-3 and Comparative Examples 1-4 and gently applies it to the face, gently pats and massages until absorbed, and uses it continuously for 28 days. The water content of the stratum corneum of the facial skin is tested before use (Day 0) and after use (Day 28), and 3 test points are taken on each cheek. During the test, other functional skin care products shall not be used superimposed, and any activities that affect the test results shall not be performed.

[0100] like Figure 1 The results shown show that the testers of Examples 1-3 used the essence of the present invention for 28 consecutive days, which significantly increased the water content of the stratum corneum of the facial skin, proving that the essence of the present invention has a good moisturizing effect, can effectively repair damaged skin, and strengthen the skin barrier. Although the essence of Comparative Examples 1-4 can also increase the water content of the stratum corneum of the skin to a certain extent, there is a significant difference from the effect of Examples 1-3. According to statistical analysis, there is no significant difference between Examples 1-3 and Comparative Examples 1-4 on Day 0, and there is a significant difference (p<0.01) between the values ​​of Examples 1-3 and Comparative Examples 1-4 on Day 28, confirming that the addition of the functional ingredients enhances the moisturizing effect of the essence of the present invention.

[0101] 2. Repair effect

[0102] The repair effect test adopts the "Test Method for the Effect of Cosmetics on Transepidermal Water Loss" T / ZHCA 003-2018 to determine the transepidermal water loss. Each group of testers for the hydrating and moisturizing effect also measured the transepidermal water loss index of the face, that is, 5 female testers in each group, aged 22 to 35 years old, and various screening indicators met the inclusion and exclusion criteria of the test. After cleansing the face in the morning and evening, the tester took an appropriate amount of the essence of Examples 1-3 and Comparative Examples 1-4 and gently applied it to the face, gently patted and massaged until absorbed, and used it continuously for 28 days. The Tewameter TM300 instrument was used to test the transepidermal water loss of the face before use (Day 0) and after use (Day 28), and 3 test points were taken on each cheek. During the test, other functional skin care products shall not be superimposed and any activities that affect the test results shall not be performed.

[0103] Table 3 Transdermal water loss

[0104] Grouping Day 0 Day 28 Rate of change Example 1 23.56±1.71 13.67±3.68 -41.98％ Example 2 21.79±2.68 13.44±2.73 -38.32％ Example 3 23.01±2.09 12.82±3.50 -44.29％ Comparative Example 1 22.16±1.93 17.39±2.35* -21.53％ Comparative Example 2 23.43±2.84 15.53±3.43* -33.72％ Comparative Example 3 23.42±2.79 16.11±3.07# -31.21％ Comparative Example 4 22.18±3.10 16.80±3.21# -24.26％

[0105] *p<0.01, Example 2 vs. Comparative Examples 1-2; #p<0.01, Example 3 vs. Comparative Examples 3-4.

[0106] The transepidermal water loss of the face is closely related to the health of the skin barrier. The higher the transepidermal water loss value, the worse the skin barrier. As shown in Table 3, the testers of Examples 1-3 used the essence of the present invention for 28 consecutive days to significantly reduce the transepidermal water loss of the face, proving that the essence of the present invention has a good barrier repair effect.

[0107] 3. Brighten skin tone

[0108] A number of testers were screened based on the indicators that met the inclusion and exclusion criteria of the test, and the test was carried out after the testers gave their informed consent. Women aged 20-40 years old, with mild dull skin and uneven skin tone on the face. The testers were randomly divided into groups. After cleansing their faces in the morning and evening, the testers took an appropriate amount of the essence of Examples 1-3 and Comparative Examples 1-4 and gently applied it to the face, gently patted and massaged until absorbed, and used it continuously for 28 days. After the test, the skin brightening effect, skin tone evenness effect and skin feel were evaluated. Scoring was performed on a scale of 0 to 5 points, with 0 points indicating ineffective / poor and 5 points indicating completely effective / excellent. The higher the score, the better the effect.

[0109] Table 4 Evaluation of skin lightening effect

[0110] Grouping Brightens skin tone Improves even skin tone Use skin feeling Example 1 4.0 4.4 3.8 Example 2 4.3 4.6 3.7 Example 3 4.4 4.4 3.5 Comparative Example 1 3.6 3.5 3.8 Comparative Example 2 3.4 3.2 3.7 Comparative Example 3 3.7 3.6 3.5 Comparative Example 4 3.8 3.3 3.7

[0111] The testers' feedback showed that the essence of the present invention can obviously brighten the skin tone and improve the uniformity of the skin tone, and the essence formula is appropriate, and the product feels good when used. Compared with comparative examples 1-4, examples 1-3 have better effects of brightening the skin tone and improving the uniformity of the skin tone.

[0112] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A repairing essence for brightening the skin, comprising the following ingredients, Phase A: 1,2-pentanediol, 1,2-hexanediol, caprylyl glycol, panthenol; Phase B: plant active extracts, hydrolyzed hyaluronic acid, lactic acid bacteria fermentation lysate; Phase C: ceramide, squalane, adenosine, hydrolyzed wheat protein, active peptides; Phase D: Punica Granatum Seed Oil, Caprylic / Capric Triglyceride, Dimethicone, Hydroxyethyl Acrylate / Sodium Acryloyldimethyl Taurate Copolymer, PPG-13-Decylteteth-24; and deionized water; Preferably, the skin-lightening repair serum further comprises a preservative.

2. The essence according to claim 1, characterized in that The plant active extract is selected from one or more of purslane extract, asiatica glycoside and turmeric root extract.

3. The essence according to claim 2, characterized in that The ceramide is selected from one or more of ceramide NP, ceramide AS, ceramide AP and ceramide NS / ceramide NG.

4. The essence according to claim 3, characterized in that The active peptide is selected from one or more of palmitoyl dipeptide-7, palmitoyl tripeptide-1, palmitoyl tripeptide-8, palmitoyl tetrapeptide-7, palmitoyl pentapeptide-4, palmitoyl hexapeptide-12, palmitoyl hexapeptide-14 and palmitoyl hexapeptide-15.

5. The essence according to claim 1, characterized in that Contains the following ingredients by mass percentage: Phase A: 2-6% 1,2-pentanediol, 3-12% 1,2-hexanediol, 0.3-3.5% caprylyl glycol, 2-10% panthenol; Phase B: 1.5-8.5% plant active extract, 2-8% hydrolyzed hyaluronic acid, 0.5-15% lactic acid bacteria fermentation lysate; Phase C: 0.6-2.5% ceramide, 1-7% squalane, 0.1-3.5% adenosine, 0.1-4% hydrolyzed wheat protein, 0.5-5% active peptide; Phase D: 0.2-2% pomegranate seed oil, 1-7% caprylic / capric triglyceride, 0.1-13% dimethicone, 0.1-3% hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer, 0.01-1.5% PPG-13-decyltetradeceth-24; and the balance of deionized water; Preferably, the skin-lightening repair essence further comprises 0.01-0.15% preservative by mass.

6. The essence according to claim 5, characterized in that The plant active extract consists of 1-4% of purslane extract, 0.1-2% of asiatica glycoside and 0.4-2.5% of turmeric root extract in the essence.

7. The essence according to claim 5, characterized in that The ceramides are composed of 0.1-0.5% by weight of ceramide AP and 0.5-2% by weight of ceramide NS / ceramide NG in the essence.

8. The essence according to claim 5, characterized in that The active peptides are composed of 0.25-2.5% by mass of palmitoyl tripeptide-1 and 0.25-2.5% by mass of palmitoyl tetrapeptide-7 in the essence.

9. The method for preparing the skin-lightening repair essence according to claim 1, characterized in that: The method comprises the following preparation steps: (1) Weigh each ingredient; (2) Dissolve component A in deionized water and stir to mix evenly; (3) Mixing component C with the material obtained in step (2), heating to 30-50° C., and stirring evenly; (4) The material obtained in step (3) is pumped into an emulsifying pot, and then component D is slowly added, heated to 60-85° C., stirred for 30-50 min, and then high-pressure homogenized for 5-10 min to ensure thorough mixing; The material is cooled to 35-45°C, component B is added, and the mixture is stirred and mixed evenly.

10. Use of the skin-lightening repair essence according to claim 1 in brightening skin color and / or repairing skin redness.

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