A soothing repair composition for soothing post-shaving irritation and uses thereof

Abstract

The application belongs to the technical field of cosmetics, and particularly relates to a soothing and repairing composition for relieving after-shaving irritation and application thereof. The application provides a soothing and repairing composition for relieving after-shaving irritation, which comprises a pH-responsive carrier and active ingredients attached to the pH-responsive carrier. The pH-responsive carrier used in the application is carboxymethyl chitosan, Norwegian spruce leaf extract, Bordeaux tree leaf extract, myrtle fruit extract and fucus serratus extract are compounded as active ingredients, and the active ingredients are encapsulated in the pH-responsive carrier, so as to quickly reduce skin damage caused by barrier damage, improve the soothing and repairing effect of the composition, and solve the problem that existing after-shaving products lack soothing and repairing for different damaged conditions. The composition provided by the application also has the advantages of simple preparation method, suitability for industrial production and the like, can be applied to the preparation of after-shaving products, and has good market application value.

Description

Technical Field

[0001] This invention belongs to the field of cosmetic technology, specifically relating to a soothing and repairing composition for relieving aftershave irritation and its application. Background Technology

[0002] Shaving is one of the most common grooming practices for men, and it can cause some skin irritation, usually manifesting as temporary redness accompanied by burning and itching. This may involve mechanical neuroinflammatory reactions, where sensory nerve fibers are activated, leading to the release of neuropeptides and subsequently causing an inflammatory response. Furthermore, the friction and cutting action of the razor blade against the skin during shaving can damage part of the stratum corneum, weakening the skin's barrier function, and stimulating hair follicles to a certain extent, which prompts the sebaceous glands to secrete more sebum to moisturize and protect the skin.

[0003] Furthermore, men's facial skin exhibits heterogeneity in shape and roughness, with significant differences in physiological characteristics across different areas, and variations in hair distribution. For instance, cheek skin is relatively smooth, reducing the risk of irritation during shaving; however, neck skin is rougher, increasing the risk of irritation. The upper lip area, with its higher beard density, may require more force and strokes during shaving, thus increasing the risk of irritation. Additionally, differences in skin thickness and elasticity across different facial areas can affect the blade's contact and cutting efficiency, and variations in skin sensitivity to mechanical and thermal stimuli can also lead to differences in post-shave skin reactions.

[0004] Most aftershave products on the market focus on soothing and moisturizing effects, and no products have yet been developed specifically for the different levels of damage caused by shaving in different areas. In areas with less damage or no damage, releasing more active ingredients may cause skin irritation, while in areas with more severe damage, the concentration of active ingredients may be insufficient to provide soothing and moisturizing effects. Therefore, aftershave products need to be tailored to the different degrees of damage caused to different parts of the face after shaving, providing differentiated aftershave care to improve the product's soothing and repairing effects. Summary of the Invention

[0005] In view of the above-mentioned defects or improvement needs of the prior art, the present invention provides a soothing and repairing composition for relieving aftershave irritation, and an aftershave product prepared using the soothing and repairing composition, so as to solve the problem that existing aftershave products lack soothing and repairing products for different damage conditions.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A first aspect of the present invention provides a soothing and repairing composition for relieving aftershave irritation, comprising a pH-responsive carrier and an active ingredient attached to the pH-responsive carrier.

[0008] Preferably, the pH-responsive carrier is carboxymethyl deacetylated chitosan.

[0009] Preferably, the active ingredient comprises the following components: Norway spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract and Fucus dentata extract, wherein the weight ratio of the Norway spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract and Fucus dentata extract is (1-5):(0.1-1):(0.1-1):(0.1-2).

[0010] Norway spruce leaf extract is rich in polysaccharides, flavonoids, polyphenols, terpenoids, and other compounds. It can inhibit the secretion of lipids by sebaceous gland cells. Triterpenoids can improve the skin's water-oil balance, reduce dryness and itching, and inhibiting sebum secretion may reduce inflammation to some extent. In addition, it contains anti-inflammatory components such as flavonoids, and Norway spruce leaf extract also has a certain anti-inflammatory effect on the skin.

[0011] Myrtle fruit extract contains active ingredients such as polysaccharides and flavonoids. Polysaccharides have excellent hygroscopic properties, forming a moisturizing film on the skin surface to lock in moisture and prevent water loss. Furthermore, myrtle fruit extract can regulate sebum synthesis and reduce inflammation.

[0012] Bordeaux leaf extract contains active ingredients such as alkaloids and phenolic compounds, which have antioxidant and anti-inflammatory effects and can soothe the skin.

[0013] Fucus vesiculosus extract provides essential natural nutrients for rapid skin regeneration and normal cell growth, promoting skin metabolism, maintaining mitochondrial function, and facilitating skin regeneration. The glutamic acid it contains also increases skin softness and smoothness, effectively nourishing the skin and providing a protective lipid barrier.

[0014] More preferably, the weight ratio of the Norway spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract and Fucus dentata extract is 2:0.3:0.3:1.

[0015] A second aspect of this invention aims to provide a method for preparing the composition described in the first aspect of this invention, comprising the following steps:

[0016] S1. Weigh out carboxymethyl deacetylated chitosan, add deionized water, stir well to obtain carboxymethyl deacetylated chitosan aqueous solution;

[0017] S2. Weigh out the Norwegian spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract, and fucus vesiculosus extract according to the formula, add deionized water, stir well, and obtain mixture I.

[0018] S3. Add carboxymethyl deacetylated chitosan aqueous solution to mixture I, adjust the pH to 4.8-5.2 with 0.1 mol / L hydrochloric acid under magnetic stirring, centrifuge, collect the flocculent, and obtain the soothing and repairing composition.

[0019] Preferably, the concentration of the carboxymethyl deacetylated chitosan aqueous solution in step S1 is 2.5-3.5 mg / mL.

[0020] Preferably, in step S2, the ratio of Norway spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract, Fucus dentata extract, and deionized water is 5g:90-110mL.

[0021] Preferably, in step S3, the weight ratio of the carboxymethyl deacetylated chitosan aqueous solution to the mixture I is 8-12:1.

[0022] Preferably, in step S3, the centrifugation speed is 7500-8500 rpm and the centrifugation time is 4-7 min.

[0023] A third aspect of the present invention aims to provide an aftershave product comprising the composition described in the first aspect, comprising the following raw materials in weight percentages: 1-10% of the composition according to any one of claims 1-7, 3-8% glycerin, 1-6% sorbitol, 3-8% propylene glycol, 0.4-0.6% p-hydroxyacetophenone, 0.4-0.6% hexanediol, 0.04-0.06% EDTA-2Na, and the balance being deionized water.

[0024] Preferably, the aftershave product comprises the following raw materials in weight percentage: 5% composition according to any one of claims 1-7, 5% glycerin, 3% sorbitol, 5% propylene glycol, 0.5% p-hydroxyacetophenone, 0.5% hexanediol, 0.05% EDTA-2Na, and the balance being deionized water.

[0025] The fourth aspect of this invention aims to provide a method for preparing an aftershave product as described in the third aspect, comprising the following steps:

[0026] A1. Weigh p-hydroxyacetophenone, hexanediol and propylene glycol, mix them evenly and dissolve them at 55-65℃, then cool them down to 40-50℃ to obtain mixture II.

[0027] A2. Add the composition of any one of claims 1-7 to 4-6 times the amount of deionized water and mix evenly. Then add mixture II, stir evenly, and dispense to obtain the post-shave product.

[0028] The beneficial effects of this invention are:

[0029] This invention provides a soothing and repairing composition for relieving aftershave irritation. The composition comprises a pH-responsive carrier and active ingredients attached to the pH-responsive carrier. The pH-responsive carrier used in this invention is carboxymethyl deacetylated chitosan. The active ingredients are compounded from Norway spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract, and *Fucus vesiculosus* extract. These active ingredients are encapsulated in the pH-responsive carrier, allowing for slow release on normal skin and rapid release at sites of skin barrier damage. This rapidly reduces skin damage caused by barrier impairment, enhancing the soothing and repairing effect of the composition and addressing the lack of targeted soothing and repairing solutions for different types of skin damage in existing aftershave products. The composition provided by this invention also has advantages such as simple preparation method, suitability for industrial production, and applicability to the preparation of aftershave products, demonstrating significant market application value. Detailed Implementation

[0030] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features and effects of the present invention, in conjunction with embodiments, is provided below.

[0031] Unless otherwise specified, experimental methods in the following examples are generally performed under standard conditions or as recommended by the manufacturer. All materials and reagents used are commercially available unless otherwise specified.

[0032] The Norway spruce leaf extract was purchased from Norture, Canada.

[0033] Bordeaux leaf extract was purchased from Ningxia Xiangcao Biotechnology Co., Ltd.

[0034] The myrtle fruit extract was purchased from Shaanxi Lvshengyuan Biological Products Manufacturing Co., Ltd.

[0035] The extract of *Fucus dentata* was purchased from Guangzhou Baiyu Biotechnology Co., Ltd.

[0036] Example 1 Preparation of the composition

[0037] 1) Composition 1

[0038] An active ingredient comprises Norway spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract and Fucus dentata extract in a weight ratio of 2:0.3:0.3:1, wherein the total weight of the Norway spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract and Fucus dentata extract is 100 parts.

[0039] The preparation method of composition 1 specifically includes the following steps:

[0040] S1. Weigh out carboxymethyl deacetylated chitosan, add deionized water, stir well to obtain carboxymethyl deacetylated chitosan aqueous solution;

[0041] S2. Weigh out the Norwegian spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract, and fucus vesiculosus extract according to the formula, add deionized water, stir well, and obtain mixture I.

[0042] S3. Add carboxymethyl deacetylated chitosan aqueous solution to mixture I, adjust the pH to 5.0 with 0.1 mol / L hydrochloric acid under magnetic stirring, centrifuge, collect the flocculent, and obtain the soothing and repairing composition.

[0043] The concentration of the carboxymethyl deacetylated chitosan aqueous solution in step S1 is 3 mg / mL;

[0044] In step S2, the ratio of Norway spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract, fucus vesiculosus extract and deionized water is 5g:100mL.

[0045] In step S3, the weight ratio of the carboxymethyl deacetylated chitosan aqueous solution to mixture I is 10:1;

[0046] In step S3, the centrifugation speed is 8000 rpm and the centrifugation time is 5 min.

[0047] 2) Composition 2

[0048] An active ingredient comprises Norway spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract and Fucus dentata extract in a weight ratio of 1:1:1:2, wherein the total weight of the Norway spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract and Fucus dentata extract is 100 parts.

[0049] The preparation method of composition 2 specifically includes the following steps:

[0050] S1. Weigh out carboxymethyl deacetylated chitosan, add deionized water, stir well to obtain carboxymethyl deacetylated chitosan aqueous solution;

[0051] S2. Weigh out the Norwegian spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract, and fucus vesiculosus extract according to the formula, add deionized water, stir well, and obtain mixture I.

[0052] S3. Add carboxymethyl deacetylated chitosan aqueous solution to mixture I, adjust the pH to 4.8 with 0.1 mol / L hydrochloric acid under magnetic stirring, centrifuge, collect the flocculent, and obtain the soothing and repairing composition.

[0053] The concentration of the carboxymethyl deacetylated chitosan aqueous solution in step S1 is 3.5 mg / mL;

[0054] In step S2, the ratio of Norway spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract, fucus vesiculosus extract and deionized water is 5g:110mL.

[0055] In step S3, the weight ratio of the carboxymethyl deacetylated chitosan aqueous solution to mixture I is 8:1.

[0056] In step S3, the centrifugation speed is 7500 rpm and the centrifugation time is 7 min.

[0057] 3) Composition 3

[0058] An active ingredient comprises Norway spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract and Fucus dentata extract in a weight ratio of 5:0.1:0.1:0.1, wherein the total weight of the Norway spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract and Fucus dentata extract is 100 parts.

[0059] The preparation method of composition 3 specifically includes the following steps:

[0060] S1. Weigh out carboxymethyl deacetylated chitosan, add deionized water, stir well to obtain carboxymethyl deacetylated chitosan aqueous solution;

[0061] S2. Weigh out the Norwegian spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract, and fucus vesiculosus extract according to the formula, add deionized water, stir well, and obtain mixture I.

[0062] S3. Add carboxymethyl deacetylated chitosan aqueous solution to mixture I, adjust the pH to 5.2 with 0.1 mol / L hydrochloric acid under magnetic stirring, centrifuge, collect the flocculent, and obtain the soothing and repairing composition.

[0063] The concentration of the carboxymethyl deacetylated chitosan aqueous solution in step S1 is 2.5 mg / mL;

[0064] In step S2, the ratio of Norway spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract, fucus vesiculosus extract and deionized water is 5g:90mL.

[0065] In step S3, the weight ratio of the carboxymethyl deacetylated chitosan aqueous solution to mixture I is 12:1;

[0066] In step S3, the centrifugation speed is 8500 rpm and the centrifugation time is 4 min.

[0067] 4) Composition 4

[0068] The difference between composition 4 and composition 1 is that the active ingredients in composition 4 do not include Norway spruce leaf extract and myrtle fruit extract, and the missing amounts are made up by Bordeaux leaf extract and Fucus dentata extract in a weight ratio of 0.3:1.

[0069] 5) Composition 5

[0070] The difference between composition 5 and composition 1 is that the active ingredient in composition 5 does not contain Bordeaux leaf extract, and the missing amount is made up by using Norway spruce leaf extract, myrtle fruit extract and fucus vesiculosus extract in a weight ratio of 2:0.3:1.

[0071] 6) Composition 6

[0072] The difference between composition 6 and composition 1 is that composition 6 does not contain Fucus dentata extract as an active ingredient, and the missing amount is made up by using Norway spruce leaf extract, Bordeaux leaf extract and myrtle fruit extract in a weight ratio of 2:0.3:0.3.

[0073] 7) Composition 7

[0074] The difference between composition 7 and composition 1 is that the total weight of the composition remains the same, and the weight ratio of Norway spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract and Fucus dentata extract is 0.5:0.5:1.2:2.2.

[0075] 8) Composition 8

[0076] The difference between composition 8 and composition 1 is that the total weight of the composition remains the same, and the weight ratio of Norway spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract and Fucus dentata extract is 5.3:1.3:0.5:0.5.

[0077] 9) Composition 9

[0078] Composition 9 differs from Composition 1 in that it does not contain Bordeaux leaf extract, but is replaced with an equal amount of white perilla leaf extract.

[0079] 10) Composition 10

[0080] Composition 10 differs from Composition 1 in that it does not contain Fucus dentata extract, but instead uses an equal amount of Kappa longicornis extract.

[0081] Test Example 1: Hyaluronidase Inhibition Experiment

[0082] Test sample: The compositions 1-10 prepared in Example 1 of this invention were added to deionized water and mixed evenly to prepare a test sample with a concentration of 0.5%;

[0083] Hyaluronic acid, also known as hyaluronic acid, is a powerful moisturizer that can attract and lock in moisture, maintain skin hydration, and improve dry, rough, and dehydrated skin conditions. Hyaluronic acid also enhances cellular bioactivity, providing strong synergistic effects for skin repair and protection. Therefore, by inhibiting hyaluronidase, the rate at which hyaluronic acid is broken down in the skin is slowed, thus achieving long-lasting hydration and repair for the skin.

[0084] (1) Take four clean test tubes and label them A, B, C and D respectively. Add 50 μL of the sample to be tested to each of test tubes A and B, add 50 μL of distilled water to each of test tubes C and D, add 50 μL of 500 U / mL hyaluronidase solution to each of test tubes A and C, and add 50 μL of pH 5.6 acetate buffer to each of test tubes B and D. Place the test tubes in a 37℃ incubator for 20 min.

[0085] (2) Add 10 μL of 2.5 mol / L CaCl2 solution to each of the four test tubes, and then place them in a 37℃ incubator for 20 min.

[0086] (3) Add 50 μL of 0.5 mg / mL sodium hyaluronate solution to test tubes A and C, and add 50 μL of pH 5.6 acetate buffer to test tubes B and D. Place the test tubes in a 37℃ incubator for 40 min, and then take them out and let them stand at room temperature for 10 min.

[0087] (4) Add 50 μL of distilled water, 10 μL of 5 mol / L NaOH solution and 50 μL of acetylacetone solution to the four test tubes respectively. Place the test tubes in a water bath for 30 min of boiling water, then in an ice bath for 10 min, and finally in a room temperature bath for 10 min.

[0088] (5) Add 100 μL of P-DAB reagent to each test tube, and then measure the absorbance at 530 nm using an ELISA reader.

[0089] The hyaluronidase inhibition rate is calculated as follows:

[0090]

[0091] In the formula: A is the OD value of the sample solution; B is the OD value of the blank sample; C is the OD value of the control sample solution; D is the OD value of the blank control sample.

[0092] The calculated data are shown in Table 1 below;

[0093] Table 1 Hyaluronidase Inhibition Rate

[0094] Group Hyaluronidase inhibition rate (%) Composition 1 85.07 Composition 2 82.88 Composition 3 84.63 Composition 4 49.17 Composition 5 56.24 Composition 6 57.58 Composition 7 72.14 Composition 8 74.57 Composition 9 66.29 Composition 10 68.35

[0095] Compositions 1-3 are prepared according to the components and preparation method of this application. Compared with composition 1, compositions 4-6 do not contain Norway spruce leaf extract, myrtle fruit extract, Bordeaux leaf extract, or Fucus dentata extract, respectively. Compositions 7-8 have different ratios of Norway spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract, and Fucus dentata extract. Compositions 9-10 have different types of extracts, respectively using white perilla leaf extract and long-hearted Kappa algae extract to replace Bordeaux leaf extract and Fucus dentata extract.

[0096] As shown in Table 1, and combining the data from Composition 1 and Compositions 4-6, the soothing, moisturizing, and repairing properties are better when Norway spruce leaf extract, Bordeaux fruit leaf extract, myrtle fruit extract, and Fucus vesiculosus extract are used in combination. When Norway spruce leaf extract, myrtle fruit extract, Bordeaux fruit leaf extract, and Fucus vesiculosus extract are missing, the soothing, moisturizing, and repairing properties of the composition decrease.

[0097] Based on the data from compositions 1-3 and 7-8, it can be seen that when the weight ratio of Norway spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract and Fucus vesiculosus extract is (1-5):(0.1-1):(0.1-1):(0.1-2), the soothing, moisturizing and repairing properties of the composition reach a better level.

[0098] Based on the data from Composition 1 and Compositions 9-10, it can be seen that when Bordeaux leaf extract, Fucus vesiculosus extract, Norway spruce leaf extract, and Myrtle fruit extract are combined, the composition has an improved ability to inhibit hyaluronidase, and the combination of the four has relatively superior soothing, moisturizing and repairing properties.

[0099] Test Example 2: Release effect of the active ingredient of the composition at different pH levels

[0100] Test substances: Compositions 1-3 prepared in the embodiments of the present invention;

[0101] The release capacity of the composition under different pH conditions was investigated using flavonoids as an indicator: First, the flavonoid content in the test substance was determined by ultraviolet spectrophotometry. Then, 1g of the test substance was weighed and soaked in 20mL of acetate buffer (pH=6.5) or PBS buffer (pH=7.4) for 4h. After centrifugation at 4000rpm for 10min, the supernatant was collected and the flavonoid content in the supernatant was determined by ultraviolet spectrophotometry.

[0102] Referring to the method in the 2010 edition of the Chinese Pharmacopoeia, the flavonoid content was determined by ultraviolet spectrophotometry. The specific experimental procedure was as follows: The test substance was diluted with water to a concentration of 2%. 1.0 mL of the test solution and 1.0 mL of distilled water were placed in 15 mL stoppered colorimetric tubes. 0.5 mL of 5% sodium nitrite was added to each tube, mixed, and incubated at room temperature for 6 min. 0.5 mL of 10% aluminum nitrate was added to each tube, mixed, and incubated at room temperature for 6 min. 5 mL of 4% sodium hydroxide was added to each tube, mixed, and incubated at room temperature for 15 min. The absorbance was measured at 510 nm. A calibration curve was plotted with absorbance as the ordinate and mass concentration as the abscissa, using rutin standard solutions with a mass concentration range of 0.2–1.2 mg / mL, to obtain the linear equation.

[0103] ;

[0104] In the formula: X is the mass concentration of flavonoids in the test solution calculated by the linear equation, in mg / mL;

[0105] N is the dilution factor of the test solution;

[0106] V is the volume of the liquid to be tested;

[0107] The final results are expressed as flavonoid release rate, i.e., flavonoid content in the supernatant / flavonoid content in the composition, and the results are shown in Table 2:

[0108] Table 2 Data on flavonoid release rate

[0109]

[0110] Normal skin surface is slightly acidic, while the skin's pH value will rise to neutral or even slightly alkaline after the barrier is damaged. As shown in Table 2, the flavonoid release rate of compositions 1-3 was tested under pH=7.4 and pH=6.5 conditions, respectively. Compared with the flavonoid release rate under pH=6.5 conditions, the flavonoid release rate under pH=7.4 conditions was significantly higher, indicating that the flavonoid release rate of compositions 1-3 prepared in this invention is better under pH=7.4 conditions. Moreover, the four plant components are encapsulated in a pH-sensitive carrier, which allows the soothing and repairing composition to be slowly released on normal skin and quickly released at the site of barrier damage, thereby having a better soothing and repairing effect.

[0111] Application example: Preparation of aftershave products

[0112] The aftershave products 1-10 described in this application example are prepared according to the following weight percentages: 5% of the compositions 1-10 prepared in Example 1 of this invention, 5% glycerin, 3% sorbitol, 5% propylene glycol, 0.5% p-hydroxyacetophenone, 0.5% hexanediol, 0.05% EDTA-2Na, and the balance being deionized water.

[0113] The preparation method of aftershave products 1-10 includes the following steps:

[0114] A1. Weigh p-hydroxyacetophenone, hexanediol and propylene glycol, mix them evenly and dissolve them at 60°C, then cool them to 45°C to obtain mixture II;

[0115] A2. After mixing the composition prepared in this invention with 5 times the amount of deionized water, add mixture II, stir evenly, and then package to obtain the post-shave product.

[0116] Test Example 3: Product oil control, moisturizing, soothing, and repair effects test

[0117] Sixty male volunteers aged 18-45 were selected. On the day of the test, no skin care products were applied and the participants shaved. After washing their faces, the participants sat quietly for 30 minutes in a constant temperature and humidity room with a temperature of 21±1℃ and a humidity of 50±10%.

[0118] Subjects were randomly divided into 10 groups of 6 people each. Initial facial oil content, moisture content, and TEWL (Transdermal Water Loss) values ​​were measured using a Sebumeter (SM815, Courage and Khazaka), a Corneometer® CM 825 (Courage + Khazaka) moisture probe, and a Tewameter®™ Hex (Courage + Khazaka) transdermal water loss probe. Facial images were taken using a Visia-7 camera, and image analysis was performed on the exported red area images to obtain initial a* values. Subjects used the aftershave product prepared according to this invention daily after shaving, using approximately 1 mL each time. Each indicator was tested at 7 and 14 days post-shaving visits. The improvement in oil content, moisture content, TEWL value, and a* value of each subject at 7 and 14 days was analyzed. The improvement was expressed as an improvement rate for each value, calculated as follows:

[0119] ;

[0120] In the formula:

[0121] X 使用前 Data on various indicators tested before subjects used the product;

[0122] X 使用后 Data on various indicators tested before subjects used the product;

[0123] The calculated data are shown in Table 3-4 below;

[0124] Among them, the shaving requirements are to use an electric shaver, shave once a day, and not to apply heat or wet the relevant area before shaving. Each shaving time and pressure should be adjusted according to one's own habits to remove the beard cleanly.

[0125] Table 3 Results of the 7-day product use effect test

[0126] Group Oil improvement rate (%) Moisture improvement rate (%) TEWL value improvement rate (%) a* value improvement rate (%) Aftershave product 1 13.24 23.78 9.18 8.32 Aftershave product 2 11.36 18.89 7.94 6.56 Aftershave product 3 12.87 21.03 8.52 7.79 Aftershave product 4 5.13 9.29 2.87 2.05 Aftershave product 5 6.26 11.58 3.42 2.56 Aftershave product 6 6.52 11.79 3.69 2.77 Aftershave product 7 9.25 16.57 5.79 4.17 Aftershave product 8 9.65 16.96 5.58 4.85 Aftershave product 9 8.19 14.25 4.48 3.22 Aftershave product 10 8.88 14.94 4.74 3.86

[0127] Table 4 Results of the product efficacy test after 14 days of use.

[0128] Group Oil improvement rate (%) Moisture improvement rate (%) TEWL value improvement rate (%) a* value improvement rate (%) Aftershave product 1 17.32 45.83 16.18 14.46 Aftershave product 2 15.45 40.91 14.94 12.35 Aftershave product 3 16.98 43.15 15.36 13.28 Aftershave product 4 9.02 25.19 7.12 6.23 Aftershave product 5 10.61 29.79 8.63 7.54 Aftershave product 6 10.37 29.88 8.95 7.72 Aftershave product 7 12.16 35.57 10.86 9.25 Aftershave product 8 12.33 35.96 10.13 9.67 Aftershave product 9 11.02 32.95 9.87 8.14 Aftershave product 10 11.93 32.24 9.95 8.68

[0129] Aftershave products 1-3 are products prepared according to the components and preparation method of this application. Compared with aftershave product 1, aftershave products 4-6 do not contain Norway spruce leaf extract, myrtle fruit extract, Bordeaux leaf extract, or Fucus dentata extract, respectively. Aftershave products 7-8 have different ratios of Norway spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract, and Fucus dentata extract. Aftershave products 9-10 have different types of extracts, respectively using white perilla leaf extract and long-hearted Kappa algae extract to replace Bordeaux leaf extract and Fucus dentata extract.

[0130] As shown in Table 3-4, compared with aftershave products 4-10, aftershave products 1-3 showed significantly higher rates of improvement in oil control, moisture control, TEWL value, and a* value. This indicates that the combination of four ingredients—Norwegian spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract, and Fucus vesiculosus extract—synergistically enhances the product's oil control, moisturizing, soothing, and repairing effects.

[0131] Table 3 shows that, compared with aftershave product 1, the oil improvement rate, moisture improvement rate, TEWL value improvement rate, and a* value improvement rate of aftershave products 4-6 were all significantly lower. This indicates that the four ingredients—Norwegian spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract, and Fucus vesiculosus extract—work synergistically, thus affecting the product's oil control, moisturizing, soothing, and repairing effects. Compared with aftershave product 1, the oil improvement rate, moisture improvement rate, TEWL value improvement rate, and a* value improvement rate of aftershave products 7-10 were all significantly lower. Furthermore, the oil improvement rate, moisture improvement rate, TEWL value improvement rate, and a* value improvement rate of aftershave products 9-10 were even lower than those of aftershave products 7-8. This suggests that both the component ratio and the type of extract affect the product's oil control, moisturizing, soothing, and repairing effects, with the type of extract having a greater impact than the component ratio.

[0132] Combining the data from Tables 3 and 4 after seven and fourteen days of product use, respectively, it can be seen that the oil improvement rate, moisture improvement rate, TEWL value improvement rate, and a* value improvement rate of aftershave products 1-10 all increased significantly, indicating that the product has a better soothing and repairing effect on the skin as the usage time increases.

[0133] In summary, the composition of the present invention achieves synergistic effects through four components: Norway spruce leaf extract, Bordeaux leaf extract, myrtle fruit extract, and Fucus vesiculosus extract. Furthermore, its application in aftershave products significantly enhances its oil-controlling, moisturizing, soothing, and repairing effects. The present invention uses carboxymethyl deacetylated chitosan to prepare the composition, resulting in a composition with targeted care effects for areas with damaged skin barriers.

[0134] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A soothing repair composition for alleviating the irritation of aftershave, characterized in that, The composition is composed of a pH-responsive carrier and an active ingredient attached to the pH-responsive carrier; The pH-responsive carrier is carboxymethyl chitosan; The active ingredient is composed of Norway spruce leaf extract, Bordeaux tree leaf extract, myrtle fruit extract and tooth margin chondrus extract, and the weight ratio of the Norway spruce leaf extract, the Bordeaux tree leaf extract, the myrtle fruit extract and the tooth margin chondrus extract is (1-5):(0.1-1):(0.1-1):(0.1-2); The composition is prepared by a preparation method composed of the following steps: S1, carboxymethyl chitosan is weighed, deionized water is added, and stirring is uniformly performed to obtain a carboxymethyl chitosan aqueous solution; S2, Norway spruce leaf extract, Bordeaux tree leaf extract, myrtle fruit extract and tooth margin chondrus extract are respectively weighed according to the formula amount, deionized water is added, and stirring is uniformly performed to obtain a mixed solution I; S3, the carboxymethyl chitosan aqueous solution is added to the mixed solution I, 0.1 mol / L hydrochloric acid is used to adjust the pH to 4.8-5.2 under magnetic stirring, and then centrifugal treatment is performed to collect flocculation, thereby obtaining the soothing repair composition; wherein the weight ratio of the carboxymethyl chitosan aqueous solution to the mixed solution I is 8-12:

1.

2. The composition of claim 1, wherein The weight ratio of the Norway spruce leaf extract, the Bordeaux tree leaf extract, the myrtle fruit extract and the tooth margin chondrus extract is 2:0.3:0.3:

1.

3. The composition according to claim 1, wherein The concentration of the carboxymethyl chitosan aqueous solution in step S1 is 2.5-3.5 mg / mL.

4. The composition according to claim 1, wherein The liquid-solid ratio of the Norway spruce leaf extract, the Bordeaux tree leaf extract, the myrtle fruit extract, the tooth margin chondrus extract and the deionized water in step S2 is 5 g:90-110 mL.

5. The composition according to claim 1, wherein The rotation speed of centrifugation in step S3 is 7500-8500 rpm, and the centrifugation time is 4-7 min.

6. A product for after-shaving, characterized in that The raw materials include the following weight percentages: 1-10% of the composition according to any one of claims 1-5, 3-8% of glycerol, 1-6% of sorbitol, 3-8% of propylene glycol, 0.4-0.6% of p-hydroxyacetophenone, 0.4-0.6% of hexylene glycol, 0.04-0.06% of EDTA-2Na, and deionized water in the remainder.

7. The after-shave product according to claim 6, characterized in that The raw materials include the following weight percentages: 5% of the composition according to any one of claims 1-5, 5% of glycerol, 3% of sorbitol, 5% of propylene glycol, 0.5% of p-hydroxyacetophenone, 0.5% of hexylene glycol, 0.05% of EDTA-2Na, and deionized water in the remainder.

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