A soothing composition for men after shaving suitable for sensitive skin and application

Abstract

The application discloses a soothing after-shaving composition for men with sensitive skin and application, and relates to the technical field of cosmetics.The soothing after-shaving composition for men with sensitive skin provided by the application is composed of extracts of a wallaby paw, a lespedeza, a vitex agnus-castus and a alnus heteroloba.The composition provided by the application can reduce the damage caused by shaving, relieve pain after shaving, and make the skin smooth after long-term use.In addition, the after-shaving soothing composition is composed of plant components, and no alcohol is added in the after-shaving care product, so that the after-shaving soothing composition is more suitable for people with sensitive skin.

Description

An aftershave soothing composition for men with sensitive skin and its application Technical Field

[0001] This invention relates to the field of cosmetic technology, and in particular to an aftershave soothing composition for men with sensitive skin and its application. Background Technology

[0002] Shaving is a routine grooming step for men. However, shaving removes not only beard hairs but also the stratum corneum. Studies show that 20% of the material removed during shaving is skin. If the area isn't properly cared for after shaving, it can cause skin problems such as irritation and barrier damage. Shaving can also create tiny wounds that are susceptible to bacterial infection and inflammation. Furthermore, shaving can make the skin rough and dry, further exacerbating irritation. In addition, compared to women, men's skin is more uneven in shape and roughness, has higher transepidermal water loss, slower wound healing, larger pores, and higher skin temperature. The skin around the hair follicles in the beard area is highly sensitive to mechanical and thermal stimuli, especially for people with sensitive skin.

[0003] Aftershave products generally contain soothing ingredients that help relieve post-shave soreness and pain, as well as moisturizing ingredients to restore facial hydration and improve the skin barrier. However, current aftershave products primarily focus on soothing and hydrating the skin after shaving, with limited research on products specifically for men with sensitive skin, and even fewer addressing skin smoothing. Furthermore, existing aftershave products typically contain alcohol, making them unsuitable for sensitive skin. Therefore, finding a suitable aftershave product for men with sensitive skin is a pressing technical challenge in this field. Summary of the Invention

[0004] Based on this, the purpose of the present invention is to overcome the shortcomings of the prior art and provide an aftershave soothing composition and application suitable for sensitive skin in men.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] In a first aspect, the present invention provides an aftershave soothing composition for men with sensitive skin, the composition comprising kangaroo paw extract, Lespedeza bicolor extract, Vitex negundo extract and Alder leaf extract.

[0007] Kangaroo paw extract is rich in polysaccharides and amino acids, which can neutralize free radicals and reduce oxidative stress damage to skin cells. Additionally, kangaroo paw extract can stimulate fibroblast activity, promote collagen production, make skin firmer and more elastic, and reduce wrinkles. Lespedeza extract is rich in flavonoids, a natural antioxidant with significant antioxidant effects. It can neutralize free radicals, reduce oxidative damage to skin cells, and thus delay aging. In this invention, it is used as a cooling ingredient to lower skin temperature and reduce skin irritation. Vitex negundo extract is a flavonol derivative with antibacterial and anti-inflammatory effects. Vitex negundo extract is also rich in various antioxidants, which can help protect the skin from environmental pollution and UV damage. Alder leaf extract is rich in terpenes and flavonoids, which can resist free radical damage, protect skin health, slow down the aging process, and also have certain anti-inflammatory effects, reducing skin inflammation and helping to maintain skin stability.

[0008] The inventors discovered through experiments that when the above-mentioned plant extracts are specifically combined to form a composition, the composition has synergistic effects such as long-lasting moisturizing, cooling and soothing, and improvement of skin roughness, making it suitable for use after shaving by sensitive men.

[0009] As a preferred embodiment of the first aspect, the kangaroo paw extract is 1-6 parts by weight, the Lespedeza bicolor extract is 1-8 parts by weight, the Vitex trifolia extract is 0.1-2 parts by weight, and the Alder leaf extract is 0.1-1 parts by weight.

[0010] As a preferred embodiment of the first aspect, the kangaroo paw extract is 2-4 parts by weight, the Lespedeza bicolor extract is 2-6 parts by weight, the Vitex trifolia extract is 0.3-1.5 parts by weight, and the Alder leaf extract is 0.4-0.8 parts by weight.

[0011] In actual compatibility experiments, the inventors discovered that the amount of kangaroo paw extract, Lespedeza bicolor extract, Vitex negundo extract, and Alder leaf extract added affects the overall effect of the final aftershave soothing composition. The overall effect of the soothing composition is optimal when it is within the aforementioned specific range.

[0012] As a preferred embodiment of the first aspect, the weight ratio of the kangaroo paw extract, Lespedeza bicolor extract, Vitex negundo extract and Alder leaf extract is (1-3):(2-3):(0.5-1):(0.3-1).

[0013] As a preferred embodiment of the first aspect, the weight ratio of the kangaroo paw extract, Lespedeza bicolor extract, Vitex negundo extract and Alder leaf extract is 2:2.5:0.6:0.5.

[0014] In actual compatibility experiments, the inventors discovered that the weight ratio of kangaroo paw extract, Lespedeza bicolor extract, Vitex negundo extract, and Alder leaf extract affects the overall effect of the final aftershave soothing composition. The overall effect of the soothing composition is better when within the specific weight ratio range mentioned above. Furthermore, the optimal weight ratio is 2:2.5:0.6:0.5.

[0015] As a preferred embodiment of the first aspect, the alder leaf extract is prepared by the following method:

[0016] (1) Dry and pulverize the alder leaves to obtain powder;

[0017] (2) The powder was extracted by reflux with ethanol to obtain an extract;

[0018] (3) The extract is filtered, concentrated and dried to obtain the alder leaf extract.

[0019] As a preferred embodiment of the second aspect, the concentration of ethanol in step (2) is 80% (v / v), and the amount of ethanol added is 30 times that of the powder; the reflux extraction specifically involves reflux extraction twice at 60°C, with each extraction lasting 1 hour.

[0020] In a second aspect, the present invention provides the use of the soothing composition as described in the first aspect in the preparation of skin products.

[0021] Thirdly, the present invention provides a skin product comprising the soothing composition as described in the first aspect.

[0022] As a preferred embodiment of the third aspect, the skin products include any one of aftershave, lotion, emulsion, cream, eye cream, eye mask, serum, and spray.

[0023] As a preferred embodiment of the third aspect, the aftershave water comprises the following components in weight percentage: 4-10% of the above, 3-8% of glycerin, 1-6% of sorbitol, 3-8% of propylene glycol, 0.4-0.6% of p-hydroxyacetophenone, 0.4-0.6% of hexanediol, 0.04-0.06% of EDTA-2Na, and the balance being water.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] This invention discovers that extracts of mouse claws, Lespedeza bicolor, Vitex negundo, and Aldera leaf have a synergistic effect within a certain ratio range. Combinations of these extracts can address skin problems experienced by men with sensitive skin after shaving. For example, after shaving, the skin is damaged by the mechanical friction of the blade, causing both increased skin temperature and a stinging sensation. The composition of this invention not only lowers skin temperature but also alleviates stinging, thus providing soothing and analgesic effects. Furthermore, long-term shaving can lead to rough, uneven skin and enlarged pores. The composition of this invention not only improves skin roughness and smoothness but also shrinks pores, resulting in smoother skin. Additionally, mechanical damage to the skin surface after shaving can impair the skin barrier, leading to dryness. The combination of this invention provides long-lasting moisturizing effects, increasing skin hydration and improving dryness. Therefore, the composition of the present invention can reduce damage during the shaving process, relieve post-shaving pain, and make the skin smooth with long-term use; in addition, the aftershave soothing composition is composed of plant ingredients and does not contain alcohol, making it more suitable for people with sensitive skin. Detailed Implementation

[0026] To better illustrate the purpose, technical solution, and advantages of this invention, the invention will be further described below with reference to specific embodiments. The purpose is to provide a detailed understanding of the invention, not to limit it. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this invention. Unless otherwise specified, the experimental reagents and instruments designed in the embodiments and comparative examples of this invention are commonly used reagents and instruments, all of which are commercially available. Unless otherwise specified, the experimental methods used in the embodiments and comparative examples are conventional methods; and unless otherwise specified, the raw materials used in parallel experiments are from the same batch.

[0027] Further explanation of the raw materials used in this invention:

[0028] Kangaroo paw extract was purchased from Shaanxi Hana Biotechnology Co., Ltd.

[0029] Lespedeza extract was purchased from Clariant.

[0030] The extract of Vitex negundo flower was purchased from Baoji Liupanyun Biotechnology Co., Ltd.

[0031] Evening primrose extract was purchased from Shaanxi Changqing Biotechnology Co., Ltd.

[0032] White water lily extract was purchased from Guangzhou Youdao Biotechnology Co., Ltd.

[0033] Vitex negundo extract was purchased from Shaanxi Xintianyu Biotechnology Co., Ltd.

[0034] Hawthorn leaf extract was purchased from Shaanxi Ciyuan Biotechnology Co., Ltd.

[0035] Preparation of alder leaf extract: Take commercially available alder leaves, dry and pulverize them, add 30 times the amount of 80% ethanol solution, and let stand for 24 hours; reflux extract twice at 60℃, extracting for 1 hour each time, filter, collect the filtrate, concentrate and dry to obtain alder leaf extract.

[0036] The preparation method of the aftershave soothing composition for men with sensitive skin according to the present invention involves mixing the components according to the weight parts, adding water to a final volume of 20g, and stirring until homogeneous. The preparation method of the comparative example is the same as that of the embodiment, and therefore will not be repeated.

[0037] Examples and Comparative Examples

[0038] This application provides an aftershave soothing composition for men with sensitive skin. The components and weight parts of the soothing composition are shown in Table 1. The comparative example is based on Example 1. If any component is missing in the comparative example, its total amount is the same as that in Example 1.

[0039] Table 1: Components and their weight parts in the Examples and Comparative Examples

[0040]

[0041]

[0042] Example of results:

[0043] Anti-inflammatory ability test of the composition:

[0044] Plating: Logarithmically growing RAW264.7 cells were seeded into 24-well plates at a cell density of 2 × 10⁻⁶ cells / well. 5 Cells / mL, 0.5mL per well, after plating, mark the top cover of the cell plate and incubate in a CO2 incubator for 24h;

[0045] Sample processing: After cell incubation for 24 h, the supernatant was aspirated, and 0.5 mL of the following samples were added respectively: ① Blank control group: DMEM medium; ② LPS (lipopolysaccharide) inflammation model group: LPS (1 μg / mL); ③ Positive control group: 0.001% dexamethasone + LPS (1 μg / mL); ④ Experimental group: 2% of the example or comparative composition + LPS (1 μg / mL);

[0046] Detection of inflammatory factors in cell supernatant: After cell treatment for 24 hours, the supernatant was pipetted into centrifuge tubes, centrifuged at 1000 rpm for 5 minutes, the precipitate was discarded, and the supernatant was collected. The changes in inflammatory factors in the supernatant were detected using the Xinbosheng TNF-α inflammatory factor detection kit. The inhibition rate of TNF-α was calculated as: TNF-α inhibition rate = (TNF-α level in model group - TNF-α level in experimental group) / TNF-α level in model group × 100%. The results are shown in Table 2.

[0047] Table 2: Results of Anti-inflammatory Activity Tests of the Composition

[0048]

[0049]

[0050] Application examples

[0051] 1. Tests on the effects of aftershave containing the composition on skin cooling, smoothness, moisturizing, TEWL, and a* value improvement:

[0052] The compositions of Examples 1-5 and Comparative Examples 1-16 were prepared into post-shave aquatic products, and the preparation methods are as follows:

[0053] Aftershave water formulation: 10% composition, 5% glycerin, 3% sorbitol, 5% propylene glycol, 0.5% p-hydroxyacetophenone, 0.5% hexanediol, 0.05% EDTA-2Na, with the balance being water. Aftershave water products for Application Examples 1-5 and Comparative Examples 1-16 were prepared respectively.

[0054] Several male volunteers aged 18-45 were selected. On the day of the visit, no skin care products were applied. After cleansing their face, 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%.

[0055] Facial images were captured using the Visia-7, and image analysis was performed on the exported red area images to obtain the a* value (a measure of facial redness; a decrease in the a* value indicates improved facial redness and a soothing effect). The VisioScan (VC20plus, Courage and Khazaka) skin texture testing system was used to test the cheek area and analyze skin smoothness. A transdermal moisture loss probe was also used. TM Hex (Courage+Khazaka) and Moisture Probe The CM 825 (Courage+Khazaka) test measures the initial facial TEWL value and moisture content.

[0056] Next, volunteers were exposed to direct sunlight outdoors for 20 minutes, and their facial temperature was measured using a surface temperature thermometer. The subjects were randomly divided into 21 groups of 5 people each, and the application examples and comparison examples of the present invention were randomly applied to the entire face. The facial temperature was measured again after 10 minutes, and the decrease in temperature after application compared to before application was calculated. The average value of the calculation results was taken. The calculation method was: temperature decrease (°C) = skin temperature after irradiation (°C) - skin temperature after application of the composition (°C).

[0057] Following the above grouping, participants used the products from both the control and application groups daily. Tests were conducted on various indicators at 7 and 14 days. The improvements in hydration content, TEWL value, a* value, and skin smoothness at 14 days were analyzed. Improvements were expressed as improvement rates, calculated as follows:

[0058] Improvement rate (%) relative to the initial value = |(X) 使用后 -X 使用前 ) / X 使用前 ×100% |; The calculated data is shown in Table 3:

[0059] Table 3: Decrease in skin smoothness, moisture content, TEWL value, a* value, and temperature for each group of volunteers.

[0060]

[0061] 2. Test the cooling effect, as detailed below:

[0062] The compositions of Examples 1-3 and Comparative Examples 5-6, 9-10, and 12 were prepared into post-whisker aquatic products, and the preparation methods are as follows:

[0063] Aftershave water formulation: 10% composition, 5% glycerin, 3% sorbitol, 5% propylene glycol, 0.5% p-hydroxyacetophenone, 0.5% hexanediol, 0.05% EDTA-2Na, with the balance being water. Aftershave water products were prepared for application examples 1-3 and comparative examples 5-6, 9-10, and 12, respectively.

[0064] Test Method: Twenty-four volunteers were selected and divided into eight groups of three. A surface temperature thermometer was used to measure the cheek temperature of the subjects before shaving, after shaving, and after using shaving product. Calculation Method: Temperature decrease (°C) = Post-shaving temperature (°C) - Temperature after using shaving product (°C); Results are shown in Table 4.

[0065] Table 4: Results of Cooling Effect Test

[0066]

[0067] 3. The above-mentioned effects demonstrate that the composition of Example 1 has the best suitability and soothing effect for consumers with sensitive skin. Therefore, the product prepared using the composition of Example 1 was tested, as follows:

[0068] The composition of Example 1 was prepared into an aftershave product. The aftershave product formulation was as follows: 10% of the composition of Example 1, 5% glycerin, 3% sorbitol, 5% propylene glycol, 0.5% p-hydroxyacetophenone, 0.5% hexanediol, 0.05% EDTA-2Na, with the remainder being water.

[0069] The preparation method is as follows: mix p-hydroxyacetophenone, hexanediol, and propylene glycol, heat to 60°C to dissolve, cool to below 45°C, mix with other ingredients, stir evenly, and then dispense.

[0070] Thirty male subjects with sensitive facial skin and recent symptoms of sensitive skin were selected to participate in the test. They were given this product and each subject applied an appropriate amount of the aftershave product to the relevant area after shaving daily for 28 days to assess its suitability for sensitive skin. Consumers completed a questionnaire survey on the degree of improvement in indicators such as soothing effect, skin smoothness, irritation, and refreshing effect. The specific content of the questionnaire is shown in Table 5 below:

[0071] Table 5: Evaluation Indicators for the Survey Questionnaire

[0072]

[0073]

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A men's aftershave soothing composition suitable for sensitive skin, characterized in that, The composition comprises kangaroo paw extract, Lespedeza bicolor extract, Vitex negundo extract and Alder leaf extract; the kangaroo paw extract is 1-6 parts by weight, the Lespedeza bicolor extract is 1-8 parts by weight, the Vitex negundo extract is 0.1-2 parts by weight, and the Alder leaf extract is 0.1-1 parts by weight; the Alder leaf extract is prepared by the following method: (1) drying and pulverizing Alder leaves to obtain powder; (2) reflux extraction of the powder with ethanol to obtain extract; (3) filtering, concentrating and drying the extract to obtain Alder leaf extract.

2. The soothing composition as claimed in claim 1, characterized in that, The kangaroo paw extract is present in parts by weight of 2-4 parts, the Lespedeza bicolor extract in parts by weight of 2-6 parts, the Vitex trifolia extract in parts by weight of 0.3-1.5 parts, and the Alder leaf extract in parts by weight of 0.4-0.8 parts.

3. The soothing composition as claimed in claim 1, characterized in that, The weight ratio of the kangaroo paw extract, Lespedeza bicolor extract, Vitex negundo extract and Alder leaf extract is (1-3):(2-3):(0.5-1):(0.3-1).

4. The soothing composition according to claim 3, characterized in that, The weight ratio of the kangaroo paw extract, Lespedeza bicolor extract, Vitex negundo extract, and Alder leaf extract is 2:2.5:0.6:0.

5.

5. The use of the soothing composition as described in claims 1-4 in the preparation of facial skin care products.

6. A facial skin product, characterized in that, The facial skin care product includes the soothing composition as described in any one of claims 1-5.

7. The facial skin product as described in claim 6, characterized in that, The facial skin care products include any one of aftershave, lotion, cream, eye cream, eye mask, serum, and spray.

8. The facial skin product as described in claim 7, characterized in that, The aftershave water comprises the following components by mass percentage: The soothing composition as described in claim 1 comprises 4-10% glycerin, 3-8% sorbitol, 1-6% propylene glycol, 3-8% p-hydroxyacetophenone, 0.4-0.6% hexanediol, 0.4-0.6% EDTA-2Na, and the balance being water.

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