Soothing and repairing composition as well as preparation method and application thereof

Abstract

The invention discloses a soothing and repairing composition as well as a preparation method and application thereof, and particularly belongs to the field of daily cosmetic preparations. The soothing and repairing composition is prepared from the following components: a kava pepper leaf / root / stem extract, a centella asiatica extract, euglena parvata polysaccharide, oat beta-glucan and rhamnose. The composition provided by the invention can reduce moisture evaporation on the skin surface to a certain extent, and has a certain repairing effect; according to the composition and the skin care preparation provided by the invention, the absolute value of the change rate of the skin heme value is greater than the absolute value of the change rate of the skin heme value of a blank control group, so that the composition and the skin care preparation provided by the invention have a certain stimulation relieving effect.

Description

Technical Field

[0001] The invention belongs to the field of daily cosmetic preparations, and in particular relates to a soothing and repairing composition and a preparation method and application thereof. Background Art

[0002] With the accelerated pace of modern life and increasingly complex environmental factors, people's skin faces more and more challenges, such as environmental pollution, ultraviolet radiation, climate change, and excessive use of cosmetics and skin care products, which may cause skin problems such as dryness, sensitivity, redness, stinging, and roughness. Especially after receiving medical beauty treatments or suffering skin damage, these uncomfortable symptoms are particularly obvious, and effective soothing and repairing products are urgently needed to deal with them.

[0003] Traditional skin care products focus on moisturizing and nourishing, but are often limited in soothing and repairing effects, and some products may contain irritating ingredients and are not suitable for sensitive or damaged skin. Therefore, the development of a safe, efficient, and non-irritating soothing and repairing composition has become an urgent need in the industry.

[0004] In recent years, with the in-depth study of natural plant extracts, it has been found that a variety of plant ingredients have significant anti-inflammatory, anti-allergic, skin barrier repair and other effects. For example, stevia extract is rich in active ingredients such as stevioside and has significant anti-inflammatory effects; tea polyphenols in tea extract have multiple effects such as antioxidant and anti-allergic effects; Magnolia officinalis bark extract can regulate immune response and reduce skin inflammation; extracts such as Schisandra chinensis and pomegranate fruit are also widely used in the field of skin care due to their rich antioxidant substances and nutrients.

[0005] In summary, combining the efficacy of natural plant extracts and modern preparation technology to develop a composition with soothing and repairing functions, and applying it to skin care products to solve common skin problems in modern life, has broad market prospects and application value. Summary of the invention

[0006] The purpose of the present invention is to provide a composition with soothing and repairing effects, and to apply the composition to skin care products to solve common skin problems in modern life.

[0007] To achieve the above object, the present invention discloses the following technical solutions:

[0008] In a first aspect, the present invention provides a soothing and repairing composition, comprising the following components in parts by mass:

[0009]

[0010] Preferably, the following components are included by weight:

[0011]

[0012] Further preferably, the following components are included by mass:

[0013]

[0014] More preferably, the preparation method of the soothing and repairing composition comprises the following steps:

[0015] (1) completely dissolving oat β-glucan, euglena polysaccharide and rhamnose in an ethanol aqueous solution with a concentration of 50 v / v% to obtain solution A;

[0016] (2) Adding Piper methysticum leaf / root / stem extract and Centella asiatica extract to the solution A obtained in step (1), stirring and dissolving them uniformly at a speed of 500 r / min and 23-25° C. to obtain a mixed solution B, removing ethanol from the mixed solution B, drying the mixed solution at 45-50° C. to a water content of ≤10%, and crushing and sieving to obtain a soothing and repairing composition.

[0017] In a second aspect, the present invention provides use of the soothing and repairing composition described in the first aspect in the preparation of a skin care preparation having anti-inflammatory, soothing, repairing and / or moisturizing effects.

[0018] In a third aspect, the present invention provides a soothing and repairing skin care preparation comprising the soothing and repairing composition described in the first aspect.

[0019] Preferably, the soothing and repairing composition is added in an amount of 1-2 wt % in the skin care preparation.

[0020] More preferably, it also contains a moisturizer, a thickener, a preservative and a solvent.

[0021] More preferably, the moisturizer is at least one of glycerin, allantoin, betaine, and butylene glycol;

[0022] The thickener Carbomer;

[0023] The preservative is at least one of phenoxyethanol, p-hydroxyacetophenone, and 1,2-hexanediol;

[0024] The solvent is deionized water.

[0025] In a fourth aspect, the present invention provides a method for preparing the soothing and repairing skin care preparation according to the third aspect, comprising the following steps:

[0026] S1. Add deionized water, the soothing and repairing composition, glycerin, allantoin, betaine and butylene glycol to a reaction vessel, raise the temperature to 70 ° C, stir evenly, and keep warm for 30 minutes to obtain a mixture;

[0027] S2. When the mixture is cooled to 45°C, carbomer, phenoxyethanol, p-hydroxyacetophenone and 1,2-hexanediol are added, stirred evenly, cooled to room temperature and then neutralized to obtain a soothing and repairing skin care preparation.

[0028] In the present invention:

[0029] The main components of Kava leaf / root / stem extract are kavalactone, capsaicin, capsaicin, dihydrocapsaicin, etc., which have significant anti-inflammatory effects and can reduce skin inflammation caused by exposure to a large number of compounds and ultraviolet rays. Kava leaf / root / stem extract helps improve skin hydration, helps the skin retain moisture, reduces discomfort caused by dryness, can reduce skin redness, erythema, tingling and itching and other uncomfortable symptoms, and provides effective soothing and repairing for sensitive skin.

[0030] Centella asiatica extract contains a large number of triterpenoid compounds, such as asiaticoside, madecassoside, asiatic acid and madecassoside, etc., which have antibacterial and anti-inflammatory activities, can reduce the production of inflammatory mediators, improve and repair the skin's own barrier function, and thus prevent and correct skin immune dysfunction. It has a strong antioxidant effect, can inhibit free radical activity, improve skin blood circulation, regenerate skin cells, and help melanin metabolize out of the body smoothly and dilute melanin deposition. After use, the skin is smooth, tender, white and bright. Centella asiatica extract can also promote the synthesis of collagen, fibronectin, etc. in the skin, increase the protein content of the skin, promote the healing of small skin wounds, and help repair sunburned skin.

[0031] The main effects of Euglena polysaccharide on the skin include moisturizing, anti-oxidation, anti-inflammatory and calming, repair and regeneration. This ingredient has multiple functions, which can improve the skin's moisturizing ability, help repair damaged skin, promote the metabolism of skin cells, and have antioxidant and anti-inflammatory effects. Because Euglena polysaccharide contains a large number of hydroxyl and carboxyl groups, it can increase the stability and antioxidant properties of the membrane. Euglena polysaccharide can form a network structure through cross-linking, enhancing the mechanical properties of the membrane.

[0032] Oat β-glucan is a polysaccharide with film-forming properties. It can form a protective film on the skin surface to reduce water evaporation and thus play a moisturizing role. Its film-forming property mainly comes from the hydrogen bonding between its polymer chains.

[0033] The present invention has found that during the blending process of oat β-glucan, fine algae polysaccharide and rhamnose, the long-chain polysaccharide molecules in the oat β-glucan and fine algae polysaccharide are physically entangled to form a network structure, rhamnose has antioxidant and anti-inflammatory effects, and a large number of hydroxyl groups in rhamnose can form hydrogen bonds with the above two components, thereby enhancing the protective properties of the film and promoting the formation of the film. In this way, the oat β-glucan / fine algae polysaccharide / rhamnose blend can effectively form a polysaccharide film on the skin surface that continuously releases active substances, so that the active substances act on the skin more effectively.

[0034] Beneficial effects of the present invention:

[0035] 1. The composition provided in this application can reduce the evaporation of water on the skin surface to a certain extent and has a certain repair effect;

[0036] 2. The absolute value of the change rate of the skin hemoglobin value of the composition and the skin care preparation provided in the present application is greater than the absolute value of the change rate of the skin hemoglobin value of the blank control group, indicating that the composition and the skin care preparation provided in the present application have stimulating, soothing and repairing effects. DETAILED DESCRIPTION

[0037] In order to better understand the present invention, the present invention is further described below in conjunction with specific examples, wherein the terms used in the examples are for describing specific embodiments and do not constitute limitations on the scope of protection of the present invention.

[0038] In the present invention:

[0039] Kava leaf / root / stem extract is Piper MethystICUM leaf / root / stem extract, INCI name is PIPER METHYSTICUM LEAF / ROOT / STEM EXTRACT, purchased from Zhengdong Biotechnology Co., Ltd.;

[0040] Centella asiatica extract is Centella asiatica extract, INCI name is CENTELLA ASIATICA EXTRACT, purchased from Shaanxi Xinyanghe Biotechnology Co., Ltd.;

[0041] Euglena gracilis polysaccharide is Euglena gracilis polysaccharide, INCI name is EUGLENAGRACILIS POLYSACCHARIDE, purchased from Shaanxi Mufan Biotechnology Co., Ltd.;

[0042] The INCI name of rhamnose is L-RHAMNOSE, CAS number: 3615-41-6, purchased from Hebei Chuangzhiyuan Biotechnology Co., Ltd.;

[0043] Oat β-glucan was AVENA SATIVA β-glucan purchased from Xi'an Tianguangyuan Biotechnology Co., Ltd.

[0044] Catechins were purchased from Jiangsu Duoyang Bioengineering Technology Co., Ltd. and extracted from green tea.

[0045] Preparation of the composition:

[0046] Step (1), weighing oat β-glucan, euglena polysaccharide and rhamnose according to the mass ratio in Table 1, stirring in an ethanol aqueous solution with a concentration of 50 v / v% until they are completely dissolved to obtain solution A;

[0047] Step (2), adding Piper mesona leaf / root / stem extract and Centella asiatica extract to the obtained solution A, stirring and dissolving them uniformly at a speed of 500 r / min and 25° C. to obtain a mixed solution B, removing ethanol from the mixed solution B, placing the mixed solution in a drying oven at a temperature of 50° C. and drying it for 36 hours until the water content is ≤10%, and crushing it through a 100-mesh sieve to obtain a soothing and repairing composition.

[0048] Table 1 Mass ratio of raw materials of the composition

[0049]

[0050] Note: “-” in the table means no addition, and the addition amount is in parts by mass. The above preparation steps are only for compositions ①-⑤ and comparative compositions ⑥-⑩. Comparative compositions ①-⑤ are single components and can be directly added to subsequent skin care preparations.

[0051] Preparation of skin care preparations:

[0052] The formula of the skin care preparation is: composition ①-⑤ or comparative composition ①-⑩, glycerin, allantoin, betaine, butylene glycol, carbomer, phenoxyethanol, p-hydroxyacetophenone, 1,2-hexanediol, and deionized water, as shown in Table 2. The comparative formula is shown in Table 3, and the individual components of the composition in Table 3 are converted into mass percentages.

[0053] Table 2 Mass percentage of raw materials of skin care preparations of Examples 1-7

[0054] Raw materials\grouping Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Composition No. ① ② ③ ④ ⑤ ③ ③ Composition dosage 2 2 2 2 2 1 1.5 glycerin 3 3 3 3 3 2 3 Allantoin 0.2 0.2 0.2 0.2 0.2 0.1 0.2 Betaine 0.5 0.5 0.5 0.5 0.5 0.2 0.5 Butanediol 5 5 5 5 5 3 5 Carbomer 0.03 0.03 0.03 0.03 0.03 0.03 0.03 Phenoxyethanol 0.2 0.2 0.2 0.2 0.2 0.2 0.2 p-Hydroxyacetophenone 0.02 0.02 0.02 0.02 0.02 0.02 0.02 1,2-Hexanediol 1 1 1 1 1 1 1 Deionized water Replenish to 100 Replenish to 100 Replenish to 100 Replenish to 100 Replenish to 100 Replenish to 100 Replenish to 100

[0055] Table 3 Mass percentage of raw materials of Example 3 and Comparative Examples 1-10

[0056]

[0057] Note: "-" in the table means no addition, and comparative examples 1-10 are based on the raw materials of Example 3 with corresponding deficiencies, and the deficiencies are supplemented with deionized water.

[0058] The preparation method of the skin care preparation is:

[0059] Step (1), adding deionized water, composition ①-⑤ or comparative composition ①-⑩, glycerol, allantoin, betaine and butanediol into a reaction pot, heating to 70° C., stirring evenly, and keeping warm for 30 minutes to obtain a mixture;

[0060] Step (2), when the mixture is cooled to 45° C., carbomer, phenoxyethanol, p-hydroxyacetophenone and 1,2-hexanediol are added, stirred evenly, cooled to room temperature and neutralized to obtain skin care preparation examples 1-7 and comparative examples 1-10.

[0061] Performance Test:

[0062] 1. Repair performance test

[0063] Test samples:

[0064] The skin care preparations of Examples 1-7 and Comparative Examples 1-10;

[0065] Matrix skin care preparation: Compositions ①-⑤ or comparison compositions ①-⑩ are not added to the matrix skin care preparation, and an equal mass of deionized water is used instead. The preparation method of the matrix skin care preparation is the same as the above-mentioned skin care preparation, and the matrix skin care preparation is used as the blank control group of the experiment.

[0066] Test method: 180 volunteers with sensitive skin, reddish facial skin, and facial skin with a transepidermal water loss value (TEWL value) greater than 20 were selected (randomly divided into 18 groups, 10 people in each group used a skin care preparation, and the test results were averaged). The volunteers used the sample skin care preparation or the matrix skin care preparation on their own, once in the morning and once in the evening, for a total of 2 times a day. During the test, the volunteers were not allowed to use skin care products with similar effects. Before using the sample skin care preparation or the matrix skin care preparation or 5 days after use, the transepidermal water loss value (TEWL value) of the volunteers' facial skin was tested (the test area must be cleaned with water and left to stand for 20 minutes before testing), and the change rate of the transepidermal water loss value of the volunteers' facial skin was calculated.

[0067] Calculation formula:

[0068] Change rate of skin transepidermal water loss value (%) = (T 5d -T 0d ) / T 0d ×100%

[0069] Where:

[0070] T 5d Refers to the transepidermal water loss value of volunteers' facial skin after 5 days of use;

[0071] T 0dRefers to the transepidermal water loss value of volunteers' facial skin before use.

[0072] Test instrument: Transepidermal water loss meter AS-VT100RS.

[0073] The transepidermal water loss value refers to the evaporation value of skin water. Appropriate skin water evaporation is normal skin metabolism. If the transepidermal water loss value is too large, it indicates that the skin barrier of the tester is damaged. After using the test sample, the transepidermal water loss value becomes smaller, which indicates that the skin barrier of the tester is restored, the skin condition is repaired, and the evaporation value of skin water is reduced. The greater the absolute value of the change rate of the transepidermal water loss value, the better the skin barrier is restored and the better the repair effect of the test sample. The test results are shown in Table 4.

[0074] Table 4 Change rate of skin transepidermal water loss value

[0075] Grouping Change rate of transepidermal water loss value (%) Blank control group -4.4 Example 1 -39.5 Example 2 -43.7 Example 3 -46.1 Example 4 -44.3 Example 5 -40.2 Example 6 -36.3 Example 7 -43.1 Comparative Example 1 -12.8 Comparative Example 2 -9.4 Comparative Example 3 -7.3 Comparative Example 4 -6.6 Comparative Example 5 -5.9 Comparative Example 6 -29.4 Comparative Example 7 -31.4 Comparative Example 8 -24.0 Comparative Example 9 -23.2 Comparative Example 10 -23.6

[0076] Result analysis:

[0077] The test results show that compared with the matrix skin care preparation, the absolute value of the change rate of the skin transepidermal water loss value of the skin care preparation containing the embodiments of the present application and the comparative example is larger, indicating that the embodiments of the present application and the comparative example can reduce the evaporation of water on the skin surface to a certain extent and have a certain repair effect.

[0078] Among them, the absolute value of the change rate of the transepidermal water loss value of the skin care preparations of Examples 1-7 is greater than that of the skin care preparations of Comparative Examples 1-10, indicating that the repair effect of Examples 1-7 is better than that of Comparative Examples 1-10; the repair effect of Comparative Examples 6 and 7 is better than that of Comparative Examples 8-10. Under normal theory, in the absence of the main components that have a repair effect (i.e., Kava Piper methysticum and Centella asiatica), the repair effect of Comparative Examples 6 and 7 should be worse than that of Comparative Examples 8-10, but in fact, the opposite is true, indicating that the complex polysaccharide formed by the fine algae polysaccharide, oat β-glucan and rhamnose in Comparative Examples 6 and 7 has a certain film-forming effect, and can form a polysaccharide film that stably loads the functional ingredients on the surface of the skin to act on the skin more effectively and continuously, while Comparative Examples 8-10 lack one of the components of fine algae polysaccharide, oat β-glucan and rhamnose, which destroys its structure, resulting in a significant decrease in the performance of the overall formula.

[0079] Therefore, there is a synergistic effect between the fine algae polysaccharide, oat β-glucan and rhamnose, and none of the three can be missing. At the same time, the three have a beneficial effect on the effective ingredients, and can promote the effective ingredients kava and Centella asiatica to act more effectively and continuously on the skin; the repair effect of Example 3 provided by the present invention is the best, followed by Examples 4 and 2, but in general, the repair effects of Examples 1-7 are excellent compared with the blank control group and the comparative example.

[0080] 2. Soothing performance test

[0081] Test samples: the skin care preparations of Examples 1-7 and Comparative Examples 1-10; the blank control group is the base skin care preparation.

[0082] Test steps: 90 volunteers with undamaged, unobstructed arms and smooth skin were selected, and the inner sides of the volunteers' left and right arms were used as test sites, with each volunteer having 2 test sites. A 2cm×2cm square area was marked on the inner side of the volunteer's arm as the test area, and 10 test areas were randomly arranged for each test sample (i.e., 5 people for each test sample, and 2 test sites for each person), and the test results were averaged. During the test phase, the test area was stimulated with a 50% capsaicin aqueous solution for 30 minutes, and the skin hemoglobin value of the test area was collected during the stimulation; the test sample was applied to the test area, and the skin hemoglobin value of the skin was collected again after waiting for 20 minutes, and the rate of change of the skin hemoglobin value before and after applying the test sample was calculated.

[0083] Calculation formula:

[0084] Skin hemoglobin value change rate (%) = (T 20min -T 0min ) / T 0min ×100%

[0085] Where:

[0086] T 20min Refers to the skin hemoglobin value after 20 minutes of use;

[0087] T 0min It refers to the skin hemoglobin value before use (i.e. the skin hemoglobin value after stimulation by 50% capsaicin aqueous solution).

[0088] Test instrument: Skin color tester CL400.

[0089] The skin hemoglobin value reflects the redness of the skin. After being stimulated by the capsaicin aqueous solution, the skin in the test area quickly turns red and the skin hemoglobin value increases. If the skin hemoglobin value in the test area decreases more and the absolute value of the skin hemoglobin value change rate is greater, it indicates that the test sample has a better soothing effect and a better redness-removing effect. The test results are shown in Table 5.

[0090] Table 5 Change rate of skin hemoglobin value

[0091]

[0092]

[0093] Result analysis:

[0094] The test results show that compared with the blank control group, the skin hemoglobin value of the skin was significantly reduced after the skin care preparation of the embodiment of the present application was used after stimulation. The skin care preparation of the embodiment of the present application makes the absolute value of the change rate of the skin hemoglobin value greater than that of the blank control group, indicating that the skin care preparation of the embodiment of the present application has a certain soothing effect.

[0095] Among them, the soothing effect of the skin care preparations of Examples 1-7 of the present application is better than that of Comparative Examples 1-10, indicating that the lack of one or more of the compositions of Kava Piper melongena leaf / root / stem extract, Centella asiatica extract, Euglena gracilis polysaccharide, oat β-glucan and rhamnose provided by the present invention leads to a decrease in the performance of the overall formula.

[0096] 3. Safety performance test:

[0097] 1. Animal Experiments

[0098] Safety performance testing is carried out in accordance with the skin irritation / corrosion test in Chapter 6 of the "Technical Specifications for Safety of Cosmetics" (2015 edition).

[0099] Experimental animals: rabbits; Experimental days: 14 days; The skin irritation intensity of rabbits was determined according to the Skin Irritation / Corrosion Test Table 4 of the "Technical Specification for Safety of Cosmetics" (2015 edition).

[0100] Test samples: skin care preparations prepared in Examples 1-7 and Comparative Examples 1-10.

[0101] The test results are shown in Table 6.

[0102] Table 6 Animal experiment results

[0103]

[0104]

[0105] 2. Human skin patch test:

[0106] Examples 1-7 and Comparative Examples 1-10 were subjected to the human skin patch test in accordance with the Technical Specifications for Safety of Cosmetics.

[0107] The skin reaction was observed according to the standard at 30 minutes (after the indentation disappears), 24 hours and 48 hours, and the observation results were recorded. See Table 7.

[0108] Table 7 Human safety test results

[0109] serial number 30min 24h 48h Example 1 Level 0, 30 players Level 0, 30 players Level 0, 30 players Example 2 Level 0, 30 players Level 0, 30 players Level 0, 30 players Example 3 Level 0, 30 players Level 0, 30 players Level 0, 30 players Example 4 Level 0, 30 players Level 0, 30 players Level 0, 30 players Example 5 Level 0, 30 players Level 0, 30 players Level 0, 30 players Example 6 Level 0, 30 players Level 0, 30 players Level 0, 30 players Example 7 Level 0, 30 players Level 0, 30 players Level 0, 30 players Comparative Example 1 Level 0, 30 players Level 0, 30 players Level 0, 30 players Comparative Example 2 Level 0, 30 players Level 0, 30 players Level 0, 30 players Comparative Example 3 Level 0, 30 players Level 0, 30 players Level 0, 30 players Comparative Example 4 Level 0, 30 players Level 0, 30 players Level 0, 30 players Comparative Example 5 Level 0, 30 players Level 0, 30 players Level 0, 30 players Comparative Example 6 Level 0, 30 players Level 0, 30 players Level 0, 30 players Comparative Example 7 Level 0, 30 players Level 0, 30 players Level 0, 30 players Comparative Example 8 Level 0, 30 players Level 0, 30 players Level 0, 30 players Comparative Example 9 Level 0, 30 players Level 0, 30 players Level 0, 30 players Comparative Example 10 Level 0, 30 players Level 0, 30 players Level 0, 30 players

[0110] Result analysis:

[0111] The test results show that the skin care preparations of the embodiments and comparative examples of the present application are safe, non-toxic and harmless, will not irritate the skin when directly applied to the skin, and are suitable for use by people of all ages.

[0112] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A soothing and repairing composition, characterized in that: By mass, it includes the following components:

2. The soothing and repairing composition according to claim 1, characterized in that: By mass, it includes the following components:

3. The soothing and repairing composition according to claim 2, characterized in that: By mass, it includes the following components:

4. The soothing and repairing composition according to any one of claims 1 to 3, characterized in that: The preparation method of the composition comprises the following steps: (1) completely dissolving oat β-glucan, euglena polysaccharide and rhamnose in an ethanol aqueous solution with a concentration of 50 v / v% to obtain solution A; (2) Adding Piper methysticum leaf / root / stem extract and Centella asiatica extract to the solution A obtained in step (1), stirring and dissolving them uniformly at a speed of 500 r / min and 23-25° C. to obtain a mixed solution B, removing ethanol from the mixed solution B, drying the mixed solution at 45-50° C. to a water content of ≤10%, and crushing and sieving to obtain a soothing and repairing composition.

5. Use of the soothing and repairing composition according to any one of claims 1 to 4 in the preparation of a skin care preparation having anti-inflammatory, soothing, repairing and / or moisturizing effects.

6. A soothing and repairing skin care preparation, characterized in that: A soothing and repairing composition comprising the soothing and repairing composition according to any one of claims 1 to 4.

7. The soothing and repairing skin care preparation according to claim 6, characterized in that: The soothing and repairing composition is added in an amount of 1-2 wt % in the skin care preparation.

8. The soothing and repairing skin care preparation according to claim 6 or 7, characterized in that: It also contains humectants, thickeners, preservatives and solvents.

9. The soothing and repairing skin care preparation according to claim 8, characterized in that: The moisturizing agent is at least one of glycerin, allantoin, betaine and butylene glycol; The thickener Carbomer; The preservative is at least one of phenoxyethanol, p-hydroxyacetophenone, and 1,2-hexanediol; The solvent is deionized water.

10. The method for preparing the soothing and repairing skin care preparation according to claim 9, characterized in that: The following steps are involved: S1. Add deionized water, the soothing and repairing composition, glycerin, allantoin, betaine and butylene glycol to a reaction vessel, raise the temperature to 70 ° C, stir evenly, and keep warm for 30 minutes to obtain a mixture; S2. When the mixture is cooled to 45°C, carbomer, phenoxyethanol, p-hydroxyacetophenone and 1,2-hexanediol are added, stirred evenly, cooled to room temperature and then neutralized to obtain a soothing and repairing skin care preparation.

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