Body scrub cream with mild exfoliating effect and preparation method of body scrub cream

Abstract

The invention relates to the technical field of cosmetics, in particular to body scrub cream with a mild exfoliating effect and a preparation method of the body scrub cream. The body scrub cream with the mild exfoliating effect is prepared from the following preparation raw materials in parts by mass: 0.8 to 0.9 part of hydroxyethyl cellulose, 29 to 31 parts of a humectant, 5.5 to 6.5 parts of a surfactant, 61.5 to 63 parts of scrub particles and 0.35 to 0.45 part of essence. The body scrub cream with the mild exfoliating effect not only can effectively clean skin, exfoliate, moisturize and moisten, but also has an antibacterial effect and a good skin feeling experience effect, meanwhile, has a remarkable protection effect on a skin barrier, and is a safe and effective skin care product.

Description

Technical Field

[0001] The present application relates to the technical field of cosmetics, and in particular to a body scrub with mild exfoliating effect and a preparation method thereof. Background Art

[0002] The skin is mainly composed of three layers: the epidermis, the dermis and the hypodermis. The main function of the skin is to protect the human body from physical and chemical stimulation from the external environment. The stratum corneum is the outermost part of the epidermis, mainly composed of 10 to 20 layers of flat, dead cells without cell nuclei. When these cells fall off, the cells in the basal layer below will be pushed up to form a new stratum corneum. Taking the human forearm as an example, 1,300 stratum corneum cells fall off per square centimeter of epidermis every hour, forming fine dust. The outer layer of the stratum corneum that falls off is also called the separation layer. The stratum corneum is the outermost layer of the epidermis, composed of dead anucleated keratinocytes. The main function of the stratum corneum is to protect the subcutaneous tissue, prevent the subcutaneous tissue from infection, dehydration, and resist the pressure caused by chemicals and external forces.

[0003] Modern people often slow down their metabolism due to poor external environmental conditions, unbalanced diet, abnormal lifestyle, staying up late, smoking, drinking, emotional factors, etc. Abnormal metabolism prevents keratin cells from falling off naturally, and thickly accumulates on the surface, causing rough and dull skin. The applied skin care products are often blocked by this overly thick barrier and cannot be absorbed by the living cells below. Therefore, we must prevent the thickening of keratin. The surface of the skin metabolizes every week. Too much old and dead keratin accumulated on the skin will cause a burden on the skin. Therefore, use exfoliating products to remove the old and dead keratin on the skin surface and let the skin breathe again.

[0004] Most of the scrubs on the market now are chemical scrubs that use natural plant particles such as apple seeds, moringa seed shells, walnut shells, or artificial particles such as plastic particles. However, plastic particles are now banned because they cannot be degraded and pollute the environment; natural plant particles cannot be dissolved in water. After consumers use them, the particles may not flow away with the water, resulting in physical accumulation of particles, which may affect the skin. In addition, the particles that flow away with the water cannot be dissolved, which also brings a burden to sewage treatment. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present application provides a body scrub with mild exfoliating effect and a preparation method thereof. The body scrub with mild exfoliating effect prepared by the present application has excellent stability at both high and low temperatures, has excellent moisturizing, nourishing and antibacterial effects, causes minimal damage to the skin barrier, is highly soft and comfortable, and has a comfortable skin feel effect. At the same time, it has efficient skin cleansing effect and mild exfoliating effect.

[0006] In the first aspect, the present application provides a body scrub with mild exfoliating effect, adopting the following technical scheme: a body scrub with mild exfoliating effect, comprising the following preparation materials by mass: 0.8-0.9 parts of hydroxyethyl cellulose, 29-31 parts of moisturizer, 5.5-6.5 parts of surfactant, 61.5-63 parts of scrub particles, and 0.35-0.45 parts of fragrance.

[0007] By adopting the above technical solutions, hydroxyethyl cellulose can increase the viscosity and viscosity of the product, improve the texture and fluidity of the product. At the same time, it can absorb and retain moisture, forming a protective film on the skin surface, thereby providing a long-lasting moisturizing effect. In addition, hydroxyethyl cellulose can promote cell metabolism, stimulate the repair and regeneration of skin cells, and enhance the skin's self-repair ability. Humectants: such as glycerin and propylene glycol as humectants can deeply replenish moisture and provide long-lasting moisturizing effects. They are suitable for use in dry environments and can help the skin maintain moisture balance, reduce water loss, and avoid dryness and tightness of the skin. Surfactants such as lauryl hydroxysulfonate, cocamidopropyl hydroxysulfonate and sodium laureth sulfate improve the cleaning ability of the product while ensuring the mildness of the product. They can effectively remove oil and dirt on the skin surface without causing excessive irritation to the skin. Some of these ingredients also have antibacterial and antistatic properties. Scrub particles such as sodium chloride and white granulated sugar are used as scrub particles. They gradually dissolve during the massage process, providing a physical exfoliation effect, helping to remove dead skin cells and promote the generation of new cells, making the skin smoother and more delicate. At the same time, the dissolved sugar solution can also provide nutrition to the skin, enhancing the moisturizing and skin care effects. In addition, the dissolved white granulated sugar solution has the effect of repairing damaged skin and reducing inflammation, while the high content of sodium chloride has a certain antibacterial effect. Fragrance: Adds pleasure when using the product and enhances user experience. The synergistic effect of these components results in a gentle, efficient and multi-functional body scrub. It not only gently exfoliates, cleanses the skin, moisturizes and antibacterial, but also provides a comfortable skin experience. At the same time, the selection and ratio of these ingredients ensure that the product has excellent stability at both high and low temperatures.

[0008] Preferably, the moisturizing agent is prepared by mixing glycerol and propylene glycol in a mass ratio of 16.5:13.5.

[0009] By adopting the above technical scheme, in the preparation of a body scrub with mild exfoliating effect, the selection and ratio of moisturizers are crucial for the moisturizing effect and skin comfort of the product. Glycerin is a common moisturizer that can absorb moisture from the air and lock moisture in the skin, thereby improving the moisturizing ability of the skin. Glycerin has good permeability and hygroscopicity, can penetrate deep into the skin cells, and help maintain the moisture balance of the skin. In addition, glycerin also has the effect of softening the skin and reducing skin irritation. Propylene glycol is a versatile solvent and moisturizer that can help other ingredients in the product dissolve and disperse better, and can also increase the moistness and ductility of the product. The combination of glycerol and propylene glycol can provide a more comprehensive moisturizing effect because they can work at different skin levels, providing moisture from the skin surface to the deep skin. The presence of propylene glycol can improve the texture and fluidity of the product, making the scrub smoother and easier to apply, and also reducing skin discomfort. In summary, the mixed use of glycerol and propylene glycol can not only provide excellent moisturizing effect, but also improve the texture and stability of the product, which is very important for products such as body scrubs that need to be stored for a long time.

[0010] Preferably, the surfactant is at least one of lauryl hydroxysulfobetaine, cocamidopropyl hydroxysulfobetaine and sodium laureth sulfate.

[0011] Preferably, the surfactant is prepared by mixing lauryl hydroxysulfobetaine, cocamidopropyl hydroxysulfobetaine and sodium laureth sulfate in a mass ratio of 5:4:6.

[0012] By adopting the above technical scheme, sodium laureth sulfate has good decontamination ability and can effectively remove grease, dirt and other impurities. At the same time, lauryl hydroxysulfonyl betaine and cocamidopropyl hydroxysulfonyl betaine also have strong cleaning ability, and the synergistic effect of the three can provide a more comprehensive cleaning effect. Cocamidopropyl hydroxysulfonyl betaine is mild and safe to the skin, and can provide mild sterilization and antiseptic effects while cleaning. At the same time, lauryl hydroxysulfonyl betaine has little irritation to the skin and is stable to acid and alkali. These characteristics make the whole formula mild to the skin while cleaning. Sodium laureth sulfate can also help the skin maintain moisture balance and reduce water loss while cleaning. At the same time, cocamidopropyl hydroxysulfonyl betaine has the effect of moisturizing and nourishing, which can keep the skin hydrated and soft. The mixed use of the three surfactants can achieve complementary and synergistic effects. For example, sodium laureth sulfate can form an emulsion between water and oil, helping to emulsify and disperse oily dirt in water, while lauryl hydroxysultaine and cocamidopropyl hydroxysultaine can provide additional cleaning and moisturizing effects. This synergistic effect allows the scrub to provide good moisturizing effects while cleaning. In summary, this ratio of surfactants can not only provide efficient cleaning effects, but also maintain skin mildness and moisturizing effects, while having good synergistic effects. This formula design allows the body scrub to protect the skin barrier while exfoliating, reduce skin irritation, and provide a comfortable skin feel.

[0013] Preferably, the frosting particles are prepared by mixing sodium chloride and white sugar in a mass ratio of 32.75:30. Preferably, the particle size of the white sugar is 0.4-0.8 mm. Preferably, the particle size of the sodium chloride is 0.7-1.7 mm.

[0014] By adopting the above technical solution, the physical properties of white sugar and sodium chloride enable them to effectively remove dead skin cells on the surface of the skin. The particle size of white sugar is between 0.4-0.8mm, and the particle size of sodium chloride is between 0.7-1.7mm. Such a particle size range can ensure that the scrub particles can effectively rub the skin surface during the massage process without causing excessive physical damage to the skin. These scrub particles gradually dissolve during the massage process, not only providing a physical exfoliation effect, helping to remove dead skin cells, promoting the generation of new cells, and making the skin smoother and more delicate, but also the dissolved sugar solution can provide nutrition to the skin, enhance moisturizing and skin care effects. The dissolved white sugar solution has the effect of repairing damaged skin, reducing inflammation and redness; the high content of sodium chloride after dissolution has a certain antibacterial effect. In summary, the choice of this mixing ratio is intended to achieve a gentle exfoliation effect while providing additional skin care and antibacterial effects.

[0015] Preferably, the essence is one of eucalyptus oil, rose essential oil and peppermint essential oil.

[0016] In a second aspect, the present application provides a method for preparing a body scrub with mild exfoliating effect, using the following technical solution: As a general technical concept, the present application also provides a method for preparing the above-mentioned body scrub with mild exfoliating effect, comprising the following steps: S91, according to the mass fraction, add the moisturizer into the reactor, adjust the speed to 20-25 rpm, raise the temperature to 80-90° C., then add hydroxyethyl cellulose and the surfactant into the reactor together, start the homogenizer, adjust the homogenization speed to 1000-1500 r / min, homogenize for 10-13 min, and cool to 35-40° C. to obtain a mixture A; S92. Add the scrub particles to the mixture A according to the mass fraction and stir evenly, then add the essence and stir evenly to obtain a body scrub with a mild exfoliating effect.

[0017] In summary, the present application includes at least one of the following beneficial technical effects: 1. Gentle exfoliation: By using specific scrub particles (such as sodium chloride and white sand sugar), which gradually dissolve during the massage process, it not only provides a physical exfoliating effect, helps remove dead skin cells, promotes the formation of new cells, and makes the skin smoother and more delicate, but the dissolved sugar solution can also provide nutrition to the skin, enhance moisturizing and skin care effects.

[0018] 2. Effectively cleans the skin: The choice of surfactants enables the scrub to effectively remove oil and dirt from the skin surface without causing excessive irritation to the skin. Ingredients such as sodium laureth sulfate and lauryl hydroxysultaine have good cleansing ability and mildness.

[0019] 3. Moisturizing: The use of moisturizers such as glycerin and propylene glycol provides deep hydration and long-lasting moisturizing effects, suitable for use in dry environments. Hydroxyethyl cellulose can absorb moisture and remain on the skin surface, providing a long-lasting moisturizing effect.

[0020] 4. Antibacterial effect: Cocamidopropyl hydroxysulfobetaine has a mild bactericidal and preservative effect. At the same time, sodium laureth sulfate has a certain antibacterial effect. In addition, the high content of sodium chloride after dissolution also has a certain antibacterial effect.

[0021] 5. Skin barrier protection: Hydroxyethyl cellulose can form a protective film on the skin surface to prevent moisture loss, increase the moisture level of the skin, and at the same time promote cell metabolism and stimulate the repair and regeneration of skin cells.

[0022] 6. Skin feel experience: The product of this application has a comfortable skin feel experience, causes minimal damage to the skin barrier, and is highly soft and comfortable.

[0023] 7. Safety: All ingredients in this application are mild and safe, which are also friendly to sensitive skin and reduce the skin's response to external stimuli. DETAILED DESCRIPTION

[0024] The embodiments of the present application will be described in detail below in conjunction with the examples, but it will be appreciated by those skilled in the art that the following examples are only used to illustrate 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, they are carried out according to normal conditions or the conditions recommended by the manufacturer. If the manufacturer is not specified for the reagents or instruments used, they are all conventional products that can be purchased commercially.

[0025] In the following examples, 1 portion means 1 kg.

[0026] Example 1 A body scrub with mild exfoliating effect, comprising the following raw materials by weight: 0.8 parts of hydroxyethyl cellulose, 29 parts of a moisturizer, 5.5 parts of a surfactant, 61.5 parts of abrasive particles, and 0.35 parts of eucalyptus benzoate oil, wherein the moisturizer is prepared by mixing glycerin and propylene glycol in a weight ratio of 16.5:13.5, and the surfactant is lauryl hydroxysulfonyl betaine; the abrasive particles are prepared by mixing sodium chloride and white granulated sugar in a weight ratio of 32.75:30, the particle size of the white granulated sugar is 0.4-0.8 mm, and the particle size of the sodium chloride is 0.7-1.7 mm; The method for preparing the body scrub with mild exfoliating effect comprises the following steps: S91. Add the moisturizer into the reactor according to the mass fraction, adjust the speed to 20 rpm, raise the temperature to 80° C., add hydroxyethyl cellulose and the surfactant into the reactor together, start the homogenizer, adjust the homogenization speed to 1000 rpm, homogenize for 113 min, and cool to 35° C. to obtain a mixture A. S92. Add the scrub particles to the mixture A according to the mass fraction and stir evenly, then add the eucalyptus oil and stir evenly to obtain a body scrub with a mild exfoliating effect.

[0027] Example 2 A body scrub with mild exfoliating effect, comprising the following raw materials by weight: 0.9 parts of hydroxyethyl cellulose, 31 parts of a moisturizer, 6.5 parts of a surfactant, 63 parts of abrasive particles, and 0.45 parts of rose essential oil, wherein the moisturizer is prepared by mixing glycerin and propylene glycol in a weight ratio of 16.5:13.5, and the surfactant is cocamidopropyl hydroxysulfobetaine; the abrasive particles are prepared by mixing sodium chloride and white granulated sugar in a weight ratio of 32.75:30, the particle size of the white granulated sugar is 0.4-0.8 mm, and the particle size of the sodium chloride is 0.7-1.7 mm; The method for preparing the body scrub with mild exfoliating effect comprises the following steps: S91. Add the moisturizer into the reactor according to the mass fraction, adjust the speed to 25 rpm, raise the temperature to 90° C., add hydroxyethyl cellulose and the surfactant into the reactor together, start the homogenizer, adjust the homogenization speed to 1500 rpm, homogenize for 10 min, and cool to 40° C. to obtain a mixture A; S92. Add the scrub particles to the mixture A according to the mass fraction and stir evenly, then add the rose essential oil and stir evenly to obtain a body scrub with a mild exfoliating effect.

[0028] Example 3 A body scrub with mild exfoliating effect, comprising the following raw materials by weight: 0.85 parts of hydroxyethyl cellulose, 30 parts of a moisturizer, 6 parts of a surfactant, 62.5 parts of abrasive particles, and 0.4 parts of peppermint essential oil, wherein the moisturizer is prepared by mixing glycerin and propylene glycol in a weight ratio of 16.5:13.5, and the surfactant is sodium laureth sulfate; the abrasive particles are prepared by mixing sodium chloride and white granulated sugar in a weight ratio of 32.75:30, the particle size of the white granulated sugar is 0.4-0.8 mm, and the particle size of the sodium chloride is 0.7-1.7 mm; The method for preparing the body scrub with mild exfoliating effect comprises the following steps: S91. Add the moisturizer into the reactor according to the mass fraction, adjust the speed to 23 rpm, raise the temperature to 85° C., add hydroxyethyl cellulose and the surfactant into the reactor together, start the homogenizer, adjust the homogenization speed to 1200 rpm, homogenize for 12 min, and cool to 37° C. to obtain a mixture A. S92. Add the scrub particles to the mixture A according to the mass fraction and stir evenly, then add the peppermint essential oil and stir evenly to obtain a body scrub with a mild exfoliating effect.

[0029] Example 4 The same as Example 3, except that: the surfactant is lauryl hydroxysulfobetaine.

[0030] Example 5 The same as Example 3, except that: the surfactant is cocamidopropyl hydroxysulfobetaine.

[0031] Example 6 The same as Example 3, except that: the surfactant is prepared by mixing lauryl hydroxysulfonyl betaine, cocamidopropyl hydroxysulfonyl betaine and sodium laureth sulfate in a mass ratio of 5:4:6.

[0032] Comparative Example 1 The same as Example 3, except that the frosted particles are sodium chloride with a particle size of 0.7-1.7 mm.

[0033] Comparative Example 2 The same as Example 3, except that: the frosting particles are white sugar with a particle size of 0.4-0.8 mm.

[0034] Performance testing 1. Stability test: The body scrubs with mild exfoliating effect prepared in the above-mentioned Examples 1 to 6 and Comparative Examples 1 to 2 were sampled, and the stability test of the scrubs was carried out according to the national light industry standard QB / T1645-2004. Heat resistance test: (40±1)℃ for 3 months, cold resistance test: -10℃ refrigerator for 3 months. The high-temperature or low-temperature products were restored to room temperature, and the products were observed to see if there was any oil leakage problem. If there was such a problem, it was deemed unqualified. The results are shown in Table 1.

[0035] Table 1 Stability test 2. Volunteer Trial Experiment 80 healthy female volunteers aged 25-30 were selected as subjects and divided into 8 groups, each with 10 people. The above-mentioned Examples 1-6 and Comparative Examples 1-2 were used to prepare a body scrub with mild exfoliation effect. The test site was 3 test sites on the outer skin of the upper arm. The size of each test site was 20mm×20mm, and the spacing was not less than 10mm. The test results of each sample were averaged. The experimental time was 28 days, and the scrub was used once every 4 days. When using it, the test site was first wetted with clean water, and then 50mg of scrub was applied to each test site. After rubbing and massaging for 5min, it was rinsed clean to simulate the daily use of the scrub. The skin surface state was tested before and after the experiment. The skin surface roughness was tested, the use experience was recorded and scored, and the full score of each indicator was 10 points. The evaluation indicators are: moisturizing, fineness, comfort, mildness, cleansing and refreshing, and exfoliating effect. The higher the score, the better the effect of the project. The test results are shown in Table 2.

[0036] Table 2 Trial score record 3. Tewl test Transepidermal water loss rate (Tewl) refers to the rate of transepidermal water loss per unit time and per unit cross-sectional area. The higher the Tewl, the more water is lost per unit time and the weaker the skin's moisturizing ability.

[0037] Test method: 80 volunteers were selected and divided into 8 groups, with 10 people in each group. The above-mentioned Examples 1-6 and Comparative Examples 1-2 were used to prepare a body scrub with mild exfoliating effect. The test was conducted at a temperature of 20-22°C and a humidity of 50% RH. Each group of volunteers used the same test sample. The test site was a 6cm×6cm area on the inner side of the arm, which was fixed with a mold. No other cosmetics could be used during the test. Before using the sample, it was tested using a transepidermal water loss meter and the average value was taken. The sample usage was 5mg / cm 2 , the transepidermal water loss meter was used to test again 0.5 hours, 2 hours, and 4 hours after use, and the average value was taken. The results are shown in Table 3.

[0038] Table 3 Tewl test Analyzing the data in Table 1-3, we can see that: 1) The body scrub with mild exfoliating effect prepared in Examples 1 to 6 has excellent stability at both high and low temperatures, has excellent moisturizing and nourishing effects, causes minimal damage to the skin barrier, is highly soft and comfortable, and has a comfortable skin feel. At the same time, it has efficient skin cleansing effect and mild exfoliating effect.

[0039] 2) The performance comparison analysis of the body scrub with mild exfoliation effect prepared in Example 6 and Example 3-Example 5 shows that the surfactant is prepared by mixing lauryl hydroxysulfonyl betaine, cocamidopropyl hydroxysulfonyl betaine and sodium laureth sulfate in a mass ratio of 5:4:6. The synergistic effect between them can not only provide an efficient cleaning effect, but also maintain the mildness and moisturizing effect of the skin, and at the same time cooperate with the effect of moisturizer and scrub particles to achieve a mild and efficient exfoliation effect. This formula design allows the body scrub to protect the skin barrier while exfoliating, reduce skin irritation, and provide a comfortable skin feel experience.

[0040] 3) The performance comparison analysis of the body scrub with mild exfoliation effect obtained by Example 6 and Comparative Examples 1-2 shows that the scrub particles are prepared by mixing sodium chloride and white granulated sugar in a mass ratio of 32.75:30, the particle size of the white granulated sugar is between 0.4-0.8mm, and the particle size of the sodium chloride is between 0.7-1.7mm. Such a particle size range can ensure that the scrub particles can effectively rub the skin surface during the massage process without causing excessive physical damage to the skin. These scrub particles gradually dissolve during the massage process, not only providing a physical exfoliation effect, helping to remove dead skin cells, promoting the generation of new cells, and making the skin smoother and more delicate, but also the dissolved sugar solution can provide nutrition to the skin, enhance moisturizing and skin care effects. The dissolved white granulated sugar solution has the effect of repairing damaged skin, reducing inflammation and redness. The high content of sodium chloride after dissolution has a certain antibacterial effect. Utilizing the synergistic effect between them, the selection of this mixing ratio is intended to achieve a mild exfoliation effect while providing additional skin care and antibacterial effects.

[0041] The above embodiments are only used to explain the technical solutions of the present application rather than to limit them. Although the above embodiments provide a specific description of the present application, relevant technical personnel should understand that the specific implementation methods of the present application can still be modified or replaced by equivalents, and any modifications and equivalent replacements that do not depart from the spirit and scope of the present application should be included in the protection scope of the present application.

Claims

1. A body scrub with mild exfoliating effect, characterized in that: The preparation raw materials include the following by weight: 0.8-0.9 parts of hydroxyethyl cellulose, 29-31 parts of moisturizing agent, 5.5-6.5 parts of surfactant, 61.5-63 parts of frosting particles and 0.35-0.45 parts of essence.

2. A body scrub with mild exfoliating effect according to claim 1, characterized in that: The moisturizing agent is prepared by mixing glycerin and propylene glycol in a mass ratio of 16.5:13.

5.

3. A body scrub with mild exfoliating effect according to claim 1, characterized in that: The surfactant is at least one of lauryl hydroxysulfobetaine, cocamidopropyl hydroxysulfobetaine and sodium laureth sulfate.

4. A body scrub with mild exfoliating effect according to claim 2, characterized in that: The surfactant is prepared by mixing lauryl hydroxysulfobetaine, cocamidopropyl hydroxysulfobetaine and sodium laureth sulfate in a mass ratio of 5:4:

6.

5. A body scrub with mild exfoliating effect according to claim 1, characterized in that: The frosting particles are prepared by mixing sodium chloride and white sugar in a mass ratio of 32.75:

30.

6. A body scrub with mild exfoliating effect according to claim 5, characterized in that: The particle size of the white granulated sugar is 0.4-0.8 mm.

7. A body scrub with mild exfoliating effect according to claim 5, characterized in that: The particle size of the sodium chloride is 0.7-1.7 mm.

8. A body scrub with mild exfoliating effect according to claim 1, characterized in that: The essence is one of eucalyptus oil, rose essential oil and peppermint essential oil.

9. A method for preparing a body scrub with mild exfoliating effect as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: S91. Add the moisturizer into the reactor according to the mass fraction, adjust the speed to 20-25 rpm, raise the temperature to 80-90° C., add hydroxyethyl cellulose and the surfactant into the reactor together, start the homogenizer, adjust the homogenization speed to 1000-1500 r / min, homogenize for 10-13 min, and cool to 35-40° C. to obtain a mixture A; S92. Add the scrub particles to the mixture A according to the mass fraction and stir evenly, then add the essence and stir evenly to obtain a body scrub with a mild exfoliating effect.

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