Summer soothing smoothie cream and preparation method thereof

Abstract

The invention relates to the technical field of cosmetics, in particular to summer soothing smoothie cream and a preparation method thereof. The summer soothing smoothie cream is prepared from the following preparation raw materials in parts by mass: 0.3 to 0.4 part of carbomer 980, 0.8 to 1.1 parts of glycerin monostearate, 1.8 to 2.2 parts of an emulsifier, 1.8 to 2.2 parts of 16 / 18 alcohol, 3.8 to 4.2 parts of 26 # white oil, 0.8 to 1.2 parts of an emollient, 0.1 to 0.12 part of L-menthol, 0.4 to 0.5 part of a functional auxiliary agent, 0.17 to 0.22 part of a soothing composition, 0.25 to 0.35 part of essence, 0.32 to 0.37 part of a sodium hydroxide aqueous solution with the mass concentration of 20 percent and 86 to 90 parts of deionized water. The soothing smoothie cream for summer disclosed by the invention not only has excellent moisturizing and soothing effects, but also can provide a quick cooling feeling, has good stability and the characteristic of being suitable for sensitive skin, and is a skin care product suitable for being used in summer.

Description

Technical Field

[0001] The present application relates to the technical field of cosmetics, and in particular to a soothing summer smoothie cream and a preparation method thereof. Background Art

[0002] Current summer skin care products (such as sunscreen and moisturizer) have the following technical defects: 1) Insufficient instant cooling: Traditional products rely on a single mint ingredient and cannot achieve rapid (≤3 minutes) and long-lasting skin cooling in high temperature environments; 2) Poor moisturizing and soothing synergy: The moisturizers (such as glycerin) and soothing ingredients (such as aloe vera) in existing formulas lack a synergistic enhancement mechanism, resulting in insufficient moisturizing time (<6 hours) and weak after-sun repair effect at high temperatures; 3) Low stability of the emulsification system: Conventional O / W emulsions are prone to stratification at high temperatures (>35°C), affecting the product shelf life and usage experience.

[0003] Although existing patents (such as CN 115919727 A) achieve rapid cooling of the skin surface through the synergistic effect of erythritol and sodium acrylate cross-linked polymer-2, they do not solve the technical problem of synergistic optimization of moisturizing, soothing and stability. Summary of the Invention

[0004] In response to the deficiencies in the prior art, the present application provides a summer soothing smoothie cream and a preparation method thereof. The summer soothing smoothie cream prepared in the present application has excellent soothing and moisturizing effects, can quickly reduce body temperature, and also has excellent stability. It is particularly suitable for use in summer and can add a cool feeling to people.

[0005] In the first aspect, the present application provides a summer soothing smoothie cream, which adopts the following technical solution: A summer soothing smoothie cream comprises the following raw materials, calculated by weight: 0.3-0.4 parts of carbomer 980, 0.8-1.1 parts of glyceryl monostearate, 1.8-2.2 parts of an emulsifier, 1.8-2.2 parts of 16 / 18 alcohol, 3.8-4.2 parts of 26# white oil, 0.8-1.2 parts of an emollient, 0.1-0.12 parts of L-menthol, 0.4-0.5 parts of a functional additive, 0.17-0.22 parts of a soothing composition, 0.25-0.35 parts of an essence, 0.32-0.37 parts of a 20% sodium hydroxide aqueous solution, and 86-90 parts of deionized water.

[0006] By employing this technical solution, carbomer forms a gel matrix, giving the smoothie cream a light, smoothie-like texture. After neutralization with sodium hydroxide, it forms a three-dimensional network structure, encapsulating the active ingredients and enhancing system stability. Emulsifiers (such as glyceryl stearate and PEG-100 stearate) create a stable O / W (oil-in-water) emulsion structure, ensuring uniform dispersion of the oil phase (white oil, silicone oil) and the aqueous phase. Glyceryl stearate provides emulsion stability, while PEG-100 stearate enhances hydrophilicity, synergistically enhancing skin freshness. 16 / 18 alcohol acts as an emulsifier and consistency regulator, enhancing emulsion system stability while also providing a lightly occlusive moisturizing effect. 26# white oil forms a breathable oil film, reducing water evaporation and synergizing with silicone oil to enhance skin smoothness. L-menthol activates the skin's TRPM8 cooling receptors, producing an immediate cooling sensation and relieving post-sunburn. Combined with glyceryl monostearate, glyceryl monostearate acts as a nonionic surfactant, promoting menthol penetration and extending the duration of the cooling effect. Soothing combinations (such as oat kernel extract + dipotassium glycyrrhizate + chlorphenesin): Oat kernel extract: Contains β-glucan and avenanthramide, which promote collagen production, fight inflammation and relieve itching, alleviating dryness and sensitivity; dipotassium glycyrrhizate: Inhibits inflammatory factors such as prostaglandins, rapidly reduces redness, and repairs UV damage; chlorphenesin: Provides a broad-spectrum antibacterial and antiseptic effect, reducing microbial irritation and assisting in regulating skin inflammation. These three ingredients form a synergistic "anti-inflammatory, antibacterial, and barrier-repairing" mechanism, addressing sensitive skin issues caused by summer heat and sun exposure. Functional additives (such as vitamin E and ethylhexylglycerin): Vitamin E: Neutralizes free radicals, repairs photodamage, and delays lipid oxidation; ethylhexylglycerin: Strengthens the moisture barrier, reduces transepidermal water loss, and synergizes with vitamin E to enhance antioxidant efficacy. Emollients (such as polydimethicone) provide a silky smooth application, reduce greasiness, and enhance water and sweat resistance. Glyceryl monostearate: Dual roles: co-emulsifier and penetration enhancer, enhancing transdermal absorption of active ingredients (such as menthol and the soothing combination). Sodium hydroxide is used to adjust the pH to 5.5-6.0 (close to the physiological value of the skin) to avoid irritation. The components work synergistically: 1. Instant cooling and long-lasting soothing: l-menthol + glyceryl monostearate provide rapid cooling, and the soothing composition continuously fights inflammation and inhibits bacteria, alleviating discomfort after sun exposure; 2. Stability and activity are balanced: The O / W emulsification system ensures a refreshing texture, silicone oil + white oil balances moisturizing and skin feel, and functional additives maintain ingredient activity; 3. Multi-dimensional protection: Vitamin E for antioxidant protection + dipotassium glycyrrhizate for photodamage protection + chlorphenesin for antibacterial protection, meeting the multiple challenges of high temperatures, ultraviolet rays, and microorganisms in summer. In short, this formula, through precise design, achieves the integrated functions of "cooling-soothing-moisturizing-protection" to meet the needs of summer skin care.

[0007] Preferably, the soothing composition is prepared by mixing oat kernel extract, dipotassium glycyrrhizate and chlorphenesin in a mass ratio of 4:1:18-20.

[0008] By adopting the above-mentioned technical solution, oat kernel extract has whitening, moisturizing, and skin-care benefits. It can promote the production of natural collagen, improve skin elasticity, and possess antioxidant properties, effectively delaying skin aging. Dipotassium glycyrrhizate inhibits the release of inflammatory factors, reducing redness and stinging caused by UV irritation or sensitive skin. Chlorphenesin has antibacterial, antiseptic, and skin-soothing properties, killing fungi and bacteria, thereby reducing the risk of skin infections. The synergistic effects between oat kernel extract, dipotassium glycyrrhizate, and chlorphenesin are primarily manifested in the following aspects: 1. Active ingredients in oat kernel extract, such as avenamide, can effectively relieve dry and itchy skin, providing immediate comfort; dipotassium glycyrrhizate can reduce redness and stinging caused by UV irritation or sensitive skin; and chlorphenesin has antibacterial, antiseptic, and skin-soothing properties. The synergistic effects of the three can more comprehensively alleviate skin discomfort. 2. Ingredients such as β-glucan in oat kernel extract can promote the synthesis of collagen, improve skin elasticity, and make the skin firmer; dipotassium glycyrrhizate has an immunomodulatory function and can quickly relieve the burning discomfort of the skin after sun exposure; chlorphenesin has a broad-spectrum bactericidal effect, which can kill fungi and bacteria and reduce the risk of skin infection. The synergistic effect of the three can more effectively protect skin health. 3. The synergistic effect between oat kernel extract, dipotassium glycyrrhizate and chlorphenesin can also enhance the stability and durability of the product, making the product less likely to deteriorate during use and maintaining a good use effect. In short, the soothing composition is prepared by mixing oat kernel extract, dipotassium glycyrrhizate and chlorphenesin in a mass ratio of 4:1:18-20. In this application, it mainly plays the role of soothing, anti-inflammatory, antibacterial and moisturizing. The synergistic effect between the three can more comprehensively relieve skin discomfort, protect skin health, and enhance the stability and durability of the product.

[0009] Preferably, the preparation method of the oat kernel extract comprises the following steps: S31, drying the oat kernels, grinding them and passing them through a 200-300 mesh sieve to obtain oat kernel powder; S32. Mix 10 parts of oat kernel powder and 40-50 parts of extraction solvent in parts by mass, and load them into the extraction kettle of the carbon dioxide supercritical extraction equipment. The extraction pressure is 12-15 MPa and the temperature is 25-30°C. The extraction is continued for 2-3 hours. The obtained extract is filtered and dried with anhydrous sodium sulfate to obtain the oat kernel extract.

[0010] By adopting the above technical solution, step S31: Dry and grind the oat kernels into a 200-300 mesh fine powder to increase the surface area to improve the subsequent extraction efficiency and ensure the full release of active ingredients (such as β-glucan and avenanthramide). Step S32: Supercritical CO2 extraction: Using triacetin + 1,2-pentanediol (3:2-3) as a solvent under conditions of 12-15MPa and 25-30°C, it combines polar and non-polar properties to efficiently extract fat-soluble (such as anthranilamide) and water-soluble (such as β-glucan) active ingredients. Drying with anhydrous sodium sulfate removes residual moisture, ensures the stability of the extract, and prevents microbial growth. The core functions of the prepared oat kernel extract are: 1. Soothing and anti-inflammatory: Anthranilamide directly inhibits inflammatory factors, alleviating redness and stinging after sun exposure. β-glucan promotes collagen production, repairs UV damage, and improves skin elasticity. 2. Moisturizing and Antioxidant: Avenamide enhances the stratum corneum's ability to lock in moisture, alleviating dryness and itching; polyphenols scavenge free radicals and slow photoaging. In summary, this preparation method maximizes the retention of oatmeal's active ingredients through supercritical extraction and a complex solvent. Combined with the synergistic effects of the formula's anti-inflammatory, antibacterial, and moisturizing ingredients, it achieves a triple-action chain: immediate cooling (menthol), long-lasting repair (oatmeal + dipotassium glycyrrhizate), and barrier strengthening (ethylhexylglycerin), perfectly meeting summer post-sun repair needs.

[0011] Preferably, the extraction solvent is composed of triacetin and 1,2-pentanediol in a mass ratio of 3:2-3.

[0012] Preferably, the emollient is polydimethylsiloxane.

[0013] Preferably, the emulsifier is composed of glyceryl stearate and PEG-100 stearate in a mass ratio of 1:1.

[0014] By adopting the above technical solution, the emulsifier is composed of glyceryl stearate and PEG-100 stearate in a 1:1 mass ratio. They work together to form a stable oil-in-water (O / W) emulsion structure, which is crucial for improving product stability and uniformity. Glyceryl stearate, as an emulsifier, helps to evenly mix the oil phase and the water phase, while PEG-100 stearate enhances the stability of the emulsion and prevents oil-water separation, ensuring that the product can be evenly applied and provides consistent skin care effects during use. This combination of emulsifiers helps maintain the product's texture and extend its shelf life, while ensuring that the active ingredients can be effectively absorbed and utilized by the skin.

[0015] Preferably, the functional auxiliary agent is prepared by mixing vitamin E and ethylhexylglycerin in a mass ratio of 3:2.

[0016] By adopting the above technical solution, the functional auxiliary agent is prepared by mixing vitamin E and ethylhexylglycerin in a mass ratio of 3:2. They work together to enhance the product's moisturizing and soothing effects. Vitamin E is a well-known antioxidant that can help protect the skin from damage by free radicals, promote skin healing, and help maintain skin health and elasticity. Ethylhexylglycerin can help the skin retain moisture, strengthen the skin's barrier function, reduce water loss, and has a soothing effect, which can reduce skin inflammation and irritation. The synergistic effect between vitamin E and ethylhexylglycerin lies in the fact that the antioxidant properties of vitamin E can protect skin cells from environmental factors, while ethylhexylglycerin helps the skin maintain hydration through its moisturizing effect. The combination of the two can more effectively improve skin comfort and satisfaction. This combination helps improve the overall health of the skin, especially in the summer when the skin is susceptible to high temperatures and ultraviolet rays.

[0017] Preferably, the essence is one of eucalyptus benzoate oil, rose essential oil, and vanilla essential oil.

[0018] In a second aspect, the present application provides a method for preparing a soothing summer smoothie cream, which adopts the following technical solution: As a general technical concept, the present application also provides a method for preparing the above-mentioned summer soothing smoothie cream, comprising the following steps: S91. Disperse Carbomer 980 in deionized water according to parts by mass, homogenize, and heat to 75-80°C to form an aqueous phase. S92. Homogenize glyceryl monostearate, emulsifier, 16 / 18 alcohol, 26# white oil, and emollient according to parts by mass, heat to 75-80°C, mix with the aqueous phase, and homogenize at 2000 rpm for 5-10 minutes. Then, add 20% sodium hydroxide aqueous solution when cooled to 60-65°C, and stir and keep warm under vacuum for 20 minutes. S93. After the heat preservation is completed, when the temperature is lowered to 44-45°C, add L-menthol, functional additives, soothing composition and essence according to the parts by mass, stir until completely dispersed, cool to 35°C and discharge to obtain summer soothing smoothie cream.

[0019] In summary, this application includes at least one of the following beneficial technical effects: 1. Excellent soothing and moisturizing effects: Through the soothing combination of oat kernel extract, dipotassium glycyrrhizate and chlorphenesin, as well as the functional adjuvants of vitamin E and ethylhexylglycerin, the product can provide deep moisturizing and soothing effects, suitable for summer use, helping the skin resist the stress caused by high temperature and ultraviolet rays.

[0020] 2. Rapid cooling: The synergistic effect of L-menthol and glyceryl monostearate can produce an instant cooling sensation, bringing an instant cooling experience to the skin, which is especially suitable for use in hot summer.

[0021] 3. Excellent stability: The special formula of the emulsifier can form a stable O / W emulsion structure, ensuring the stability and durability of the product during use.

[0022] 4. Whitening, moisturizing and skin care: The various active ingredients in oat kernel extract can promote the production of collagen and improve skin elasticity. At the same time, it has antioxidant ability and helps delay skin aging.

[0023] 5. Antibacterial, antiseptic and skin soothing: The addition of chlorphenesin can kill fungi and bacteria, reduce the risk of skin infection, and also has the effect of soothing the skin.

[0024] 6. Reduce ultraviolet stimulation: Dipotassium glycyrrhizate can inhibit the release of inflammatory factors, reduce redness, stinging and other reactions caused by ultraviolet stimulation or sensitive skin.

[0025] 7. Enhance skin barrier function: Ethylhexylglycerin can enhance the skin's barrier function, reduce water loss, and keep the skin hydrated.

[0026] 8. Antioxidant and repair: Vitamin E has antioxidant effects and can repair UV damage, enhancing user comfort and satisfaction.

[0027] 9. Suitable for sensitive skin: The ingredients in the product are suitable for sensitive skin and can effectively relieve skin dryness and discomfort caused by high temperature and ultraviolet rays. DETAILED DESCRIPTION

[0028] The embodiments of the present application will be described in detail below with reference to the examples, but it will be understood by those skilled in the art that the following examples are merely illustrative of the present application and should not be considered as limiting the scope of the present application. In the examples, if specific conditions are not specified, the conditions are carried out according to conventional conditions or manufacturer recommendations. The reagents or instruments used are not specified by the manufacturer and are conventional products that can be purchased commercially.

[0029] In the following examples and preparation examples, 1 part means 100 g.

[0030] Preparation Example 1 Preparation of oat kernel extract The preparation method of oat kernel extract comprises the following steps: S31, drying the oat kernels, grinding them and passing them through a 200-mesh sieve to obtain oat kernel fine powder; S32. Mix 10 parts of oat kernel powder and 47 parts of extraction solvent in parts by mass, wherein the extraction solvent consists of triacetin and 1,2-pentanediol in a mass ratio of 3:2.5, and put them into the extraction kettle of a supercritical carbon dioxide extraction equipment (model SFE LAB20L, France), with an extraction pressure of 14 MPa and a temperature of 26°C. The extraction is carried out continuously for 2.3 hours. After filtering the obtained extract, it is dried with anhydrous sodium sulfate to obtain an oat kernel extract.

[0031] Example 1 A summer soothing smoothie cream comprises the following raw materials, calculated by weight: 0.3 parts of carbomer 980, 0.8 parts of glyceryl monostearate, 1.8 parts of an emulsifier, 1.8 parts of 16 / 18 alcohol, 3.8 parts of 26# white oil, 0.8 parts of polydimethylsiloxane, 0.1 parts of L-menthol, 0.4 parts of a functional additive, 0.17 parts of a soothing composition, 0.25 parts of eucalyptus benzoate, 0.32 parts of a 20% aqueous sodium hydroxide solution, and 86 parts of deionized water. The soothing composition is prepared by mixing oat kernel extract, dipotassium glycyrrhizate, and chlorphenesin in a weight ratio of 4:1:18; the emulsifier is composed of glyceryl stearate and PEG-100 stearate in a weight ratio of 1:1; and the functional additive is prepared by mixing vitamin E and ethylhexylglycerin in a weight ratio of 3:2. The preparation method of the above-mentioned summer soothing smoothie cream comprises the following steps: S91. Disperse Carbomer 980 in deionized water according to parts by mass, homogenize, and heat to 75°C to form an aqueous phase. S92. Homogenize glyceryl monostearate, emulsifier, 16 / 18 alcohol, 26# white oil, and polydimethylsiloxane according to parts by mass, heat to 75°C, mix with the aqueous phase, and homogenize at 2000 rpm for 5 minutes. Then, add a 20% sodium hydroxide aqueous solution when the mixture is cooled to 60°C, and stir and keep warm under vacuum for 20 minutes. S93. After the heat preservation is completed, when the temperature is lowered to 44° C., add L-menthol, functional additives, soothing composition and eucalyptus oil according to the mass fractions, stir until completely dispersed, cool to 35° C. and discharge to obtain summer soothing smoothie cream.

[0032] Example 2 A summer soothing smoothie cream comprises the following raw materials, measured by weight: 0.4 parts of carbomer 980, 1.1 parts of glyceryl monostearate, 2.2 parts of an emulsifier, 2.2 parts of 16 / 18 alcohol, 4.2 parts of 26# white oil, 1.2 parts of polydimethylsiloxane, 0.12 parts of L-menthol, 0.5 parts of a functional additive, 0.22 parts of a soothing composition, 0.35 parts of rose essential oil, 0.37 parts of a 20% sodium hydroxide aqueous solution, and 90 parts of deionized water. The soothing composition is prepared by mixing oat kernel extract, dipotassium glycyrrhizate, and chlorphenesin in a weight ratio of 4:1:20; the emulsifier is composed of glyceryl stearate and PEG-100 stearate in a weight ratio of 1:1; and the functional additive is prepared by mixing vitamin E and ethylhexylglycerin in a weight ratio of 3:2. The preparation method of the above-mentioned summer soothing smoothie cream comprises the following steps: S91. Disperse Carbomer 980 in deionized water according to parts by mass, homogenize, and heat to 80°C to form an aqueous phase. S92. Homogenize glyceryl monostearate, emulsifier, 16 / 18 alcohol, 26# white oil, and polydimethylsiloxane according to parts by mass, heat to 80°C, mix with the aqueous phase, and homogenize at 2000 rpm for 10 minutes. Then, add a 20% sodium hydroxide aqueous solution when the mixture is cooled to 65°C, and stir and keep warm under vacuum for 20 minutes. S93. After the heat preservation is completed, when the temperature is lowered to 45°C, add L-menthol, functional additives, soothing composition and rose essential oil according to the parts by mass, stir until completely dispersed, cool to 35°C and discharge to obtain summer soothing smoothie cream.

[0033] Example 3 A summer soothing smoothie cream comprises the following raw materials, measured by weight: 0.35 parts of carbomer 980, 1 part of glyceryl monostearate, 2 parts of an emulsifier, 2 parts of 16 / 18 alcohol, 4 parts of 26# white oil, 1 part of polydimethylsiloxane, 0.11 parts of L-menthol, 0.45 parts of a functional aid, 0.2 parts of a soothing composition, 0.3 parts of vanilla essential oil, 0.35 parts of a 20% sodium hydroxide aqueous solution, and 88 parts of deionized water. The soothing composition is prepared by mixing oat kernel extract, dipotassium glycyrrhizate, and chlorphenesin in a weight ratio of 4:1:19; the emulsifier is composed of glyceryl stearate and PEG-100 stearate in a weight ratio of 1:1; and the functional aid is prepared by mixing vitamin E and ethylhexylglycerin in a weight ratio of 3:2. The preparation method of the above-mentioned summer soothing smoothie cream comprises the following steps: S91. Disperse Carbomer 980 in deionized water according to parts by mass, homogenize, and heat to 78°C to form an aqueous phase. S92. Homogenize glyceryl monostearate, emulsifier, 16 / 18 alcohol, 26# white oil, and polydimethylsiloxane according to parts by mass, heat to 78°C, mix with the aqueous phase, and homogenize at 2000 rpm for 8 minutes. Then, add a 20% sodium hydroxide aqueous solution when the mixture is cooled to 63°C, and stir and keep warm under vacuum for 20 minutes. S93. After the heat preservation is completed, when the temperature is lowered to 44.5°C, add L-menthol, functional additives, soothing composition and vanilla essential oil according to the parts by mass, stir until completely dispersed, cool to 35°C and discharge to obtain summer soothing smoothie cream.

[0034] Comparative Example 1 The same as Example 3, except that: an oat (AVENA SATIVA) kernel extract (CAS: 84012-26-0) produced by Wuhan Kemi Link Chemical Technology Co., Ltd. is used in an equal mass fraction instead of the oat kernel extract prepared in the present application.

[0035] Comparative Example 2 The same as Example 3, except that: the soothing composition is prepared by mixing oat kernel extract and dipotassium glycyrrhizate in a mass ratio of 4:1.

[0036] Comparative Example 3 The same as Example 3, except that: the soothing composition is prepared by mixing oat kernel extract and chlorphenesin in a mass ratio of 4:19.

[0037] Comparative Example 4 The same as Example 3, except that: the soothing composition is prepared by mixing dipotassium glycyrrhizate and chlorphenesin in a mass ratio of 1:19.

[0038] Comparative Example 5 The same as Example 3, except that: 0 part of functional additive.

[0039] Performance testing 1. Stability Test: Samples of the soothing summer smoothie cream prepared in Examples 1-3 were collected and subjected to stability testing according to the national light industry standard QB / T 1645-2004. Heat resistance test: The product was kept at (40±1)°C for 3 months. After returning to room temperature, the product was observed for changes. No changes were observed for passing. Cold resistance test: The product was kept in a refrigerator at -10°C for 3 months. After returning to room temperature, the product was observed for changes. No changes were observed for passing. Centrifugation test: The sample was centrifuged at 3000 rpm for 30 minutes to observe for stratification. No stratification or precipitation was observed for passing.

[0040] The above three stability tests show that the stability of the summer soothing smoothie creams prepared in Examples 1 to 3 of the present application are all qualified.

[0041] 2. Instant cooling test The Summer Soothing Smoothie Cream samples prepared in Examples 1-3 and Comparative Examples 1-5 were sampled and tested under ambient temperature of 38°C ± 1°C. After washing their arms, the subjects used a paper towel to ensure their arms were dry. The tester marked the test site (a 4x4 cm square on the inside of the arm, 5 cm from the elbow) and measured the temperature of the test site immediately after product application and 3 minutes after application. The skin surface temperature drop over 3 minutes was calculated. The results are shown in Table 1.

[0042] 3. Hyaluronidase inhibition rate test (which can characterize the soothing effect). According to T / JSRH 003-2023 "Hyaluronidase inhibition method for testing the anti-allergic activity of cosmetic raw materials", the hyaluronidase inhibition rates of the summer soothing smoothie creams prepared in Examples 1 to 3 and Comparative Examples 1 to 5 were tested. The results are shown in Table 1.

[0043] 4. Human patch test (to characterize soothing effect) 240 subjects, all females aged 18-60 years, who met the inclusion and exclusion criteria of the 2015 "Safety Technical Specifications for Cosmetics," were tested. The 240 subjects were divided into 8 groups, with 30 randomly selected from each group. The subjects were then treated with Examples 1-3 and Comparative Examples 1-5 to prepare a soothing summer smoothie cream. The skin on both sides of the upper back spine was selected as the test site. The skin was divided into two parts: one part was used as a blank control, and the other part was smeared with Examples 1-3 and Comparative Examples 1-5 to prepare a soothing summer smoothie cream. The patch tester tape containing the test substance was then firmly applied from bottom to top, and gently pressed with the palm of the hand to evenly apply it to the skin. The patch test was conducted for 48 hours. After 48 hours of application, the patch tester was removed, and the test results were observed and recorded 30 minutes later. For detailed operating procedures, refer to the patch test diagnostic kit instructions.

[0044] Result judgment: (±) - suspicious reaction; only weak erythema; (+) - weak positive reaction (erythema reaction); erythema, infiltration, edema, and papules may be present; (++) - strong positive reaction (herpes reaction); erythema, infiltration, edema, papules, and herpes; (+++) - very strong positive reaction (fusion herpes reaction); obvious erythema, severe infiltration, edema, and fusion herpes; (-) - negative reaction. The results are shown in Table 1. 5. Moisturizing test: 88 people were divided into 8 groups, with 11 people randomly selected from each group. Summer soothing smoothie cream was prepared using Examples 1-3 and Comparative Examples 1-5 respectively; it was applied to the entire face once a day, morning and evening, according to the instructions. The test lasted 4 weeks, with 3 visits in weeks 0, 2, and 4 for instrument testing. Corneometer was used to test the skin moisture content, and the results were averaged. The results are shown in Table 1.

[0045] Table 1 Performance test Analyzing the data in Table 1, we can see that: 1) The summer soothing smoothie cream prepared in Examples 1 to 3 has excellent soothing and moisturizing effects, quickly reduces body temperature, and also has a moisturizing function. It is particularly suitable for use in summer and adds a cool feeling to people.

[0046] 2) A comparative analysis of the performance of the summer soothing smoothie cream prepared in Example 3 and Comparative Example 1 shows that the oat kernel extract prepared in the present application maximizes the retention of oat active ingredients and can enhance the soothing and moisturizing effect of the smoothie cream.

[0047] 3) A comparative analysis of the performance of the summer soothing smoothie creams prepared in Example 3 and Comparative Examples 2-4 showed that the soothing composition was prepared by mixing oat kernel extract, dipotassium glycyrrhizate, and chlorphenesin in a mass ratio of 4:1:19. The synergistic effect between the oat kernel extract, dipotassium glycyrrhizate, and chlorphenesin was mainly reflected in the following aspects: 1. The active ingredients in the oat kernel extract, such as avenamide, can effectively relieve dry and itchy skin problems and provide immediate comfort; dipotassium glycyrrhizate can reduce reactions such as redness and stinging caused by ultraviolet stimulation or sensitive skin; chlorphenesin has antibacterial, antiseptic, and skin-soothing functions. The synergistic effect of the three can more comprehensively relieve skin discomfort. 2. Components like beta-glucan in oat kernel extract promote collagen synthesis, enhance skin elasticity, and make the skin firmer. Dipotassium glycyrrhizate has immunomodulatory properties, quickly relieving the burning sensation of sunburned skin. Chlorphenesin acts as a broad-spectrum antiseptic, killing fungi and bacteria and reducing the risk of skin infections. The synergistic effect of these three ingredients can more effectively protect skin health. 3. The synergistic effect between oat kernel extract, dipotassium glycyrrhizate, and chlorphenesin also enhances the stability and durability of the product, preventing it from deteriorating during use and maintaining its optimal performance. In short, the synergistic effect of these three ingredients can more comprehensively alleviate skin discomfort, protect skin health, and enhance the stability and durability of the product.

[0048] 4) A comparative analysis of the performance of the summer soothing smoothie creams prepared in Example 3 and Comparative Example 5 shows that the addition of a functional adjuvant (prepared by mixing vitamin E and ethylhexylglycerin in a mass ratio of 3:2) enhances the product's moisturizing and soothing effects, more effectively improving skin comfort and satisfaction. This is beneficial for improving overall skin health, especially in the summer, when skin is susceptible to high temperatures and ultraviolet rays.

[0049] The above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. Although the above embodiments provide a detailed description of the present application, relevant technical personnel should understand that the specific implementation methods of the present application may still be modified or replaced by equivalents. Any modifications and equivalent replacements that do not depart from the spirit and scope of the present application should be included in the scope of protection of the present application.

Claims

1. A summer soothing smoothie cream, characterized in that: The preparation comprises the following raw materials in parts by mass: 0.3-0.4 parts of carbomer 980, 0.8-1.1 parts of glyceryl monostearate, 1.8-2.2 parts of emulsifier, 1.8-2.2 parts of 16 / 18 alcohol, 3.8-4.2 parts of 26# white oil, 0.8-1.2 parts of emollient, 0.1-0.12 parts of L-menthol, 0.4-0.5 parts of functional additive, 0.17-0.22 parts of soothing composition, 0.25-0.35 parts of essence, 0.32-0.37 parts of 20% sodium hydroxide aqueous solution, and 86-90 parts of deionized water.

2. The summer soothing smoothie cream according to claim 1, characterized in that: The soothing composition is prepared by mixing oat kernel extract, dipotassium glycyrrhizate and chlorphenesin in a mass ratio of 4:1:18-20.

3. The summer soothing smoothie cream according to claim 2, characterized in that: The preparation method of the oat kernel extract comprises the following steps: S31, drying the oat kernels, grinding them and passing them through a 200-300 mesh sieve to obtain oat kernel powder; S32. Mix 10 parts of oat kernel powder and 40-50 parts of extraction solvent in parts by mass, and load them into the extraction kettle of the carbon dioxide supercritical extraction equipment. The extraction pressure is 12-15 MPa and the temperature is 25-30°C. The extraction is continued for 2-3 hours. The obtained extract is filtered and dried with anhydrous sodium sulfate to obtain the oat kernel extract.

4. The summer soothing smoothie cream according to claim 3, characterized in that: The extraction solvent consists of triacetin and 1,2-pentanediol in a mass ratio of 3:2-3.

5. The summer soothing smoothie cream according to claim 1, characterized in that: The emollient is polydimethylsiloxane.

6. The summer soothing smoothie cream according to claim 1, characterized in that: The emulsifier is composed of glyceryl stearate and PEG-100 stearate in a mass ratio of 1:

1.

7. The summer soothing smoothie cream according to claim 1, characterized in that: The functional auxiliary agent is prepared by mixing vitamin E and ethylhexylglycerin in a mass ratio of 3:

2.

8. The summer soothing smoothie cream according to claim 1, characterized in that: The essence is one of eucalyptus benzoate oil, rose essential oil and vanilla essential oil.

9. A method for preparing a soothing summer smoothie cream according to any one of claims 1 to 8, characterized in that: The following steps are involved: S91. Disperse Carbomer 980 in deionized water according to parts by mass, homogenize, and heat to 75-80° C. to form an aqueous phase; S92. Homogenize glyceryl monostearate, emulsifier, 16 / 18 alcohol, 26# white oil, and emollient according to parts by mass, heat to 75-80°C, mix with water, and homogenize at 2000 rpm for 5-10 minutes; then, add 20% sodium hydroxide aqueous solution when cooled to 60-65°C, and keep warm under vacuum with stirring for 20 minutes; S93. After the heat preservation is completed, when the temperature is lowered to 44-45°C, add L-menthol, functional additives, soothing composition and essence according to the parts by mass, stir until completely dispersed, cool to 35°C and discharge to obtain summer soothing smoothie cream.

Images