Soother moisturizing composition, soother moisturizing cream and method of making same

Abstract

The application discloses a soothing and moisturizing composition, a soothing and moisturizing cream and a preparation method thereof. The soothing and moisturizing composition is composed of honeysuckle flower extract, forsythia suspensa extract, bisabalol, asiaticoside, glycerol, ceteareth, cetearyl alcohol, jojoba oil, squalane, acrylamide / sodium acryloyldimethyl taurate copolymer, phenoxyethanol, tocopherol, dimethicone, isohexadecane, isononyl isononanoate and water. The soothing and moisturizing cream has a particle size of less than 220 nm, is small in particle size, high in permeability, good in stability, long in moisturizing duration, has a soothing effect, can achieve deep moisturizing, relieves dry skin and soothes skin inflammation.

Description

Technical Field

[0001] This invention belongs to the field of cosmetic technology. Specifically, this invention relates to a moisturizing lotion, and more specifically, this invention relates to a soothing and moisturizing composition, a soothing and moisturizing lotion, and a method for preparing the same. Background Technology

[0002] The skin's moisture content is crucial for maintaining its health and appearance, serving as a core foundation for ensuring skin barrier function, elasticity, and firmness. Influenced by aging, environmental factors (such as UV radiation, dry climates, and pollution), and lifestyle, transepidermal water loss gradually intensifies. This not only directly leads to dryness, roughness, and loss of elasticity but also damages the skin barrier structure, inducing discomfort such as sensitivity and redness. Simultaneously, moisture loss further interferes with the synthesis and maintenance of collagen and elastin fibers in the dermis. Accelerated damage and degradation of these components further diminish skin elasticity and firmness, exacerbating skin damage and creating a vicious cycle of "moisture loss - barrier damage - collagen degradation."

[0003] Current moisturizing products on the market generally have multiple limitations: single moisturizing products rely solely on ingredients such as glycerin and hyaluronic acid to form a water-locking film on the surface of the stratum corneum, lacking proactive intervention on the collagen metabolism and barrier repair mechanisms of the dermis. They cannot fundamentally block the process of moisture loss, and some ingredients may even irritate the damaged barrier, exacerbating skin sensitivity and redness. They have not built a pathway of "deep moisturizing - barrier repair - effective soothing," and cannot simultaneously solve multiple problems such as moisture loss, barrier damage, and sensitivity and redness.

[0004] In addition, due to process limitations, the particle size reduction of active ingredients in moisturizing products is limited, and the system stability is poor, which still cannot meet the needs of deep penetration and targeted release of active ingredients. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a soothing moisturizing lotion with small particle size, high stability, and deep moisturizing, barrier repair and soothing and anti-allergy functions.

[0006] The specific technical solutions for achieving the above-mentioned objectives are as follows.

[0007] In a first aspect, the present invention provides a composition comprising the following raw materials in the indicated weight ratios: 0.5%–2% honeysuckle flower extract, 0.2%–1% forsythia extract, 0.2%–1% bisabolol, 0.1%–0.5% asiaticoside, 3%–5% glycerin, 5%–10% cetearyl alcohol polyether, 2%–3% cetearyl alcohol, 3%–5% jojoba oil, 1%–2% squalane, 1%–2% acrylamide / sodium acryloyl dimethyl taurate copolymer, 0.5%–1.0% phenoxyethanol, 0.05%–0.15% tocopherol, 1%–2% polydimethylsiloxane, 1%–3% isohexadecane, 3%–4% isononyl isononanoate, with the balance being water.

[0008] A second aspect of the invention provides the use of the above composition in the preparation of a soothing and moisturizing lotion.

[0009] In a third aspect, the present invention provides a soothing and moisturizing lotion prepared from the above-described composition.

[0010] A fourth aspect of the present invention provides a method for preparing a soothing and moisturizing lotion, comprising the following steps: (1) Add the honeysuckle flower extract, forsythia extract, asiaticoside, glycerin, and phenoxyethanol to water and heat to obtain an aqueous phase; (2) The bisabolol, cetearyl alcohol polyether, cetearyl alcohol, jojoba oil, squalane, tocopherol, polydimethylsiloxane, isohexadecane, and isononyl isononanoate are mixed until completely dissolved to obtain the oil phase; (3) Under conditions of 65℃~75℃, the aqueous phase is added to the oil phase while homogenizing. After the aqueous phase is completely added, homogenization is continued for 8min~12min to obtain an emulsion. (4) When the emulsion is stirred and cooled to 45°C~55°C, the acrylamide / acryloyldimethyltaurate copolymer is added and stirred until it is completely swollen; (5) Continue stirring until room temperature, and the product is ready.

[0011] The inventors of this invention have discovered that, using honeysuckle flower extract, forsythia extract, bisabolol, asiaticoside, glycerin, cetearyl alcohol polyether, cetearyl alcohol, jojoba oil, squalane, acrylamide / acryloyldimethyl taurate copolymer, phenoxyethanol, tocopherol, polydimethylsiloxane, isohexadecane, and isononyl isononanoate as raw materials, under specific process conditions, a nanoemulsion with a particle size of less than 220 nm can be prepared. This nanoemulsion has a small particle size, strong permeability, good stability, long-lasting moisturizing effect, and soothing effect, achieving deep moisturizing, relieving dry skin, and soothing skin inflammation. Attached Figure Description

[0012] Figure 1This is a particle size distribution chart of the moisturizing lotion from Example 1 of the present invention.

[0013] Figure 2 This is a particle size distribution chart of the moisturizing lotion in Example 2 of the present invention.

[0014] Figure 3 This is a particle size distribution chart of the moisturizing lotion in Example 3 of the present invention.

[0015] Figure 4 This is a particle size distribution chart of the moisturizing lotion in Example 4 of the present invention.

[0016] Figure 5 This is a particle size distribution chart of the moisturizing lotion in Comparative Example 5 of the present invention.

[0017] Figure 6 This is a particle size distribution chart of the moisturizing lotion in Comparative Example 9 of this invention. Detailed Implementation

[0018] To facilitate understanding of the present invention, a more complete description will be provided below. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the present invention.

[0019] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used in this invention includes any and all combinations of one or more of the associated listed items.

[0020] Unless otherwise specified, experimental methods in the following examples were performed under standard conditions, such as those described in Green and Sambrook et al., *Molecular Cloning: A Laboratory Manual* (2013), or as recommended by the manufacturer. All commonly used chemical reagents used in the examples are commercially available products.

[0021] In some embodiments of the present invention, a composition is disclosed comprising the following raw materials in the following weight ratios: 0.5%~2% honeysuckle flower extract, 0.2%~1% forsythia extract, 0.2%~1% bisabolol, 0.1%~0.5% asiaticoside, 3%~5% glycerin, 5%~10% cetearyl alcohol polyether, 2%~3% cetearyl alcohol, 3%~5% jojoba oil, 1%~2% squalane, 1%~2% acrylamide / sodium acryloyl dimethyl taurate copolymer, 0.5%~1.0% phenoxyethanol, 0.05%~0.15% tocopherol, 1%~2% polydimethylsiloxane, 1%~3% isohexadecane, 3%~4% isononyl isononanoate, with the balance being water.

[0022] In one embodiment, the composition comprises the following raw materials in the following weight ratios: 1%~2% honeysuckle flower extract, 0.5%~1% forsythia extract, 0.2%~0.5% bisabolol, 0.1%~0.3% asiaticoside, 4%~5% glycerin, 5%~10% cetearyl alcohol polyether, 2%~2.5% cetearyl alcohol, 3%~4% jojoba oil, 1%~1.5% squalane, 1.5%~2% acrylamide / acryloyl dimethyl taurate copolymer, 0.8%~1.0% phenoxyethanol, 0.08%~0.12% tocopherol, 1%~1.5% polydimethylsiloxane, 1%~2% isohexadecane, 3%~3.5% isononyl isononanoate, and the balance being water.

[0023] In one embodiment, the composition comprises the following raw materials in the following weight ratios: honeysuckle flower extract 1%~1.2%, forsythia extract 0.5%~0.6%, bisabolol 0.4%~0.5%, asiaticoside 0.2%~0.3%, glycerin 4%~4.5%, cetearyl alcohol polyether 8%~10%, cetearyl alcohol 2.4%~2.5%, jojoba oil 3.5%~4%, squalane 1.2%~1.5%, acrylamide / acryloyl dimethyl taurate copolymer 1.5%~1.8%, phenoxyethanol 0.8%~0.9%, tocopherol 0.09%~0.11%, polydimethylsiloxane 1.2%~1.5%, isohexadecane 1.8%~2%, isononyl isononanoate 3.2%~3.5%, with the balance being water.

[0024] In other embodiments of the present invention, the use of the above composition in the preparation of soothing and moisturizing lotions is disclosed.

[0025] In other embodiments of the present invention, a soothing and moisturizing lotion is disclosed, which is prepared from the above-described composition.

[0026] In other embodiments of the present invention, a method for preparing a soothing and moisturizing lotion is disclosed, comprising the following steps: (1) Add the honeysuckle flower extract, forsythia extract, asiaticoside, glycerin, and phenoxyethanol to water and heat to obtain an aqueous phase; (2) The bisabolol, cetearyl alcohol polyether, cetearyl alcohol, jojoba oil, squalane, tocopherol, polydimethylsiloxane, isohexadecane, and isononyl isononanoate are mixed until completely dissolved to obtain the oil phase; (3) Under conditions of 65℃~75℃, the aqueous phase is added to the oil phase while homogenizing. After the aqueous phase is completely added, homogenization is continued for 8min~12min to obtain an emulsion. (4) When the emulsion is stirred and cooled to 45°C~55°C, the acrylamide / acryloyldimethyltaurate copolymer is added and stirred until it is completely swollen; (5) Continue stirring until room temperature, and the product is ready.

[0027] In one embodiment, the temperature is heated to 65°C to 75°C in step (1).

[0028] In one embodiment, the temperature is heated to 68°C to 72°C in step (1).

[0029] In one embodiment, step (2) involves dissolving the material at 65°C to 75°C until completely dissolved.

[0030] In one embodiment, step (2) involves dissolving the material at 68°C to 72°C until completely dissolved.

[0031] In one embodiment, the rotational speed for homogenization in step (3) is 15,000 rpm to 18,000 rpm.

[0032] In one embodiment, the rotational speed for homogenization in step (3) is 16,000 rpm to 18,000 rpm.

[0033] In the following examples, the Forsythia suspensa extract was purchased from Shaanxi Yongyuan Biotechnology Co., Ltd., the Lonicera japonica extract from Guangdong Wengjiang Chemical Reagent Co., Ltd., the Sophora flavescens extract from Fufeng Sinote Biotechnology Co., Ltd., the Viola yedoensis extract from Shenzhen Tianqishun Biotechnology Co., Ltd., the Chamomile extract from Guangzhou Ming'an Biotechnology Co., Ltd., and the Polygonum cuspidatum root extract from Wuhan Kanos Technology Co., Ltd. Other raw materials not specified were all commercially available.

[0034] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Example 1: Soothing Moisturizing Lotion and its Preparation Method This embodiment provides a soothing and moisturizing lotion prepared from the following raw materials in weight percentages: honeysuckle flower extract 0.5%, forsythia extract 0.2%, bisabolol 1%, asiaticoside 0.5%, glycerin 5%, cetearyl alcohol polyether 5%, cetearyl alcohol 2%, jojoba oil 3%, squalane 1%, acrylamide / acryloyl dimethyl taurate copolymer 2%, phenoxyethanol 0.9%, tocopherol 0.1%, polydimethylsiloxane 1%, isohexadecane 1%, isononyl isononanoate 3%, and the balance is purified water.

[0036] The method for preparing the soothing and moisturizing lotion in this embodiment includes the following steps: (1) Add honeysuckle flower extract, forsythia extract, asiaticoside, glycerin, and phenoxyethanol to purified water, heat to 70°C and keep warm for later use to obtain the aqueous phase.

[0037] (2) Mix bisabolol, cetearyl alcohol polyether, cetearyl alcohol, jojoba oil, squalane, tocopherol, polydimethylsiloxane, isohexadecane, and isononyl isononanoate, place at 70°C until completely dissolved to obtain the oil phase.

[0038] (3) At 70°C, the aqueous phase is slowly added to the oil phase while homogenizing. The homogenization speed is 18000 rpm. After the aqueous phase is completely added, homogenize for another 10 min.

[0039] (4) Stir the emulsion and cool it to 50°C. Add the acrylamide / acryloyl dimethyl taurate copolymer and stir until homogenized and fully swollen.

[0040] (5) Stir again until room temperature to obtain soothing and moisturizing lotion.

[0041] Example 2: Soothing Moisturizing Lotion and its Preparation Method This embodiment provides a soothing and moisturizing lotion prepared from the following raw materials in weight percentage: 2% honeysuckle flower extract, 1% forsythia extract, 0.2% bisabolol, 0.1% asiaticoside, 5% glycerin, 5% cetearyl alcohol polyether, 2% cetearyl alcohol, 3% jojoba oil, 1% squalane, 2% acrylamide / acryloyl dimethyl taurate copolymer, 0.9% phenoxyethanol, 0.1% tocopherol, 1% polydimethylsiloxane, 1% isohexadecane, 3% isononyl isononanoate, and the balance is purified water.

[0042] The preparation method of the soothing and moisturizing lotion in this embodiment is the same as that in Embodiment 1.

[0043] Example 3: Soothing Moisturizing Lotion and its Preparation Method This embodiment provides a soothing and moisturizing lotion prepared from the following raw materials in weight percentages: honeysuckle flower extract 0.5%, forsythia extract 0.2%, bisabolol 1%, asiaticoside 0.5%, glycerin 3%, cetearyl alcohol polyether 10%, cetearyl alcohol 3%, jojoba oil 5%, squalane 2%, acrylamide / acryloyl dimethyl taurate copolymer 1%, phenoxyethanol 0.9%, tocopherol 0.1%, polydimethylsiloxane 2%, isohexadecane 3%, isononyl isononanoate 4%, and the balance is purified water.

[0044] The preparation method of the soothing and moisturizing lotion in this embodiment is the same as that in Embodiment 1.

[0045] Example 4: Soothing and Moisturizing Lotion and its Preparation Method This embodiment provides a soothing and moisturizing lotion prepared from the following raw materials in weight percentages: honeysuckle flower extract 1%, forsythia extract 0.5%, bisabolol 0.5%, asiaticoside 0.3%, glycerin 4%, cetearyl alcohol polyether 10%, cetearyl alcohol 2.5%, jojoba oil 4%, squalane 1.5%, acrylamide / acryloyl dimethyl taurate copolymer 1.5%, phenoxyethanol 0.9%, tocopherol 0.1%, polydimethylsiloxane 1.5%, isohexadecane 2%, isononyl isononanoate 3.5%, and the balance being purified water.

[0046] The preparation method of the soothing and moisturizing lotion in this embodiment is the same as that in Embodiment 1.

[0047] Comparative Example 1 The moisturizing lotion provided in this comparative example uses the same raw materials as in Example 4, except that it does not contain honeysuckle flower extract. Its preparation method is the same as in Example 1.

[0048] Comparative Example 2 The moisturizing lotion provided in this comparative example uses the same raw materials as in Example 4, except that it does not contain Forsythia extract. Its preparation method is the same as in Example 1.

[0049] Comparative Example 3 The moisturizing lotion provided in this comparative example uses the same raw materials as in Example 4, except that bisabolol is not added. Its preparation method is the same as in Example 1.

[0050] Comparative Example 4 The moisturizing lotion provided in this comparative example uses the same raw materials as in Example 4, except that it does not contain asiaticoside. Its preparation method is the same as in Example 1.

[0051] Comparative Example 5 The moisturizing lotion provided in this comparative example uses stearic acid instead of cetearyl alcohol polyether, and the other raw materials are the same as in Example 4. Its preparation method is the same as in Example 1.

[0052] Comparative Example 6 The moisturizing lotion provided in this comparative example uses xanthan gum instead of acrylamide / acryloyldimethyl taurate copolymer, and other raw materials are the same as in Example 4. Its preparation method is the same as in Example 1.

[0053] Comparative Example 7 The moisturizing lotion provided in this comparative example uses Sophora flavescens extract, Viola yedoensis extract, Chamomile extract, and Polygonum cuspidatum root extract instead of Lonicera japonica flower extract, Forsythia suspensa extract, bisabolol, and asiaticoside, while other raw materials are the same as in Example 4. Its preparation method is the same as in Example 1.

[0054] Comparative Example 8 The moisturizing lotion provided in this comparative example uses caprylic / capric triglyceride instead of jojoba oil, and the other raw materials are the same as in Example 4. Its preparation method is the same as in Example 1.

[0055] Comparative Example 9 The moisturizing lotion provided in this comparative example has the same raw material composition as in Example 4. The preparation method is the same as in Example 1, except that the homogenization speed in step (3) is 8000 rpm.

[0056] Performance testing of the moisturizing lotion in the test case The following performance tests were conducted on the moisturizing lotions prepared in Examples 1-4 and Comparative Examples 1-9: 1. Stability According to GB / T 29665-2013, the moisturizing emulsions of Examples 1-4 and Comparative Example 6 were tested for heat resistance, cold resistance, and centrifugation. No stratification after being kept at 40±1℃ for 24 hours and then returning to room temperature indicates heat resistance; no stratification after being kept at -8±2℃ for 24 hours and then returning to room temperature indicates cold resistance; and no stratification after centrifugation at 2000 r / min for 30 min indicates good centrifugation performance. The results are shown in Table 1.

[0057]

[0058] As shown in Table 1, in the heat resistance test, the moisturizing lotions of Examples 1-4 showed no obvious water separation, while the moisturizing lotion of Comparative Example 6 hydrated into a liquid with slight separation. In the cold resistance test, the moisturizing lotions of Examples 1-4 and Comparative Example 6 showed no separation. In the centrifugation test, the moisturizing lotions of Examples 1-4 and Comparative Example 6 showed no separation. Therefore, the heat resistance of the moisturizing lotions of Examples 1-4 of this invention is superior to that of the moisturizing lotion of Comparative Example 6.

[0059] 2. Particle size detection Take 0.5g of each of the moisturizing lotion samples from Examples 1-4, Comparative Examples 5 and 9, add 4.5g of glycerin, stir and disperse, let stand to remove foam, and use a Malvern laser particle size analyzer (model Nano ZS90) to detect particle size. The detection parameters are: sample cell DTS0012, sample height 10-15mm, detection temperature 25℃, dispersant glycerol, viscosity 80cp, material RI 1.590, absorption 0.01, and three measurements.

[0060] The results are shown in Table 2 and Figures 1-5 As shown.

[0061]

[0062] As shown in Table 2, the particle size of the moisturizing lotions in Examples 1-4 is below 220 nm, which meets the requirements of nanoemulsions. However, the particle size of the moisturizing lotions in Comparative Examples 5 and 9 is significantly larger, above 500 nm, which does not meet the requirements of nanoemulsions.

[0063] 3. Relief Assessment Thirty-six subjects with red or stinging skin were selected, with six subjects in each group. They used the moisturizing lotion samples of Example 4, Comparative Examples 1-4, and Comparative Example 7 respectively for 28 days. No other skin care products were used during the period, and the skin soothing and improvement were observed.

[0064] The results are shown in Table 3.

[0065]

[0066] As shown in Table 3, compared with the moisturizing lotions of each comparative example, the moisturizing lotion of Example 4 has a significantly better soothing effect, the moisturizing lotions of Comparative Examples 1 to 4 have similar soothing effects, while the moisturizing lotion of Comparative Example 7 has the worst soothing effect.

[0067] 4. Transdermal water loss detection The transdermal water loss rate of Bama miniature pig skin was detected using a Fanz diffusion cell. The initial transdermal water loss rate of the pig skin was measured separately. Then, 50 mg of moisturizing lotion samples from Examples 1-4 and Comparative Example 8 were applied to the skin, and the transdermal water loss rate of the pig skin was measured at 8 h and 24 h using a transdermal water loss meter (manufacturer: ASCH JAPAN CO.,LTD, model: AS-VT100).

[0068] The results are shown in Table 4.

[0069]

[0070] As shown in Table 4, the moisturizing lotions of Examples 1-4 all reduced transdermal water loss by more than 50% in 24 hours, which is significantly higher than the 37.9% of Comparative Example 8. Therefore, the moisturizing lotions of Examples 1-4 have significantly stronger moisturizing ability.

[0071] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A composition, characterized in that, It is composed of the following raw materials in the following weight ratios: honeysuckle flower extract 0.5%~2%, forsythia extract 0.2%~1%, bisabolol 0.2%~1%, asiaticoside 0.1%~0.5%, glycerin 3%~5%, cetearyl alcohol polyether 5%~10%, cetearyl alcohol 2%~3%, jojoba oil 3%~5%, squalane 1%~2%, acrylamide / acryloyl dimethyl taurate copolymer 1%~2%, phenoxyethanol 0.5%~1.0%, tocopherol 0.05%~0.15%, polydimethylsiloxane 1%~2%, isohexadecane 1%~3%, isononyl isononanoate 3%~4%, and the balance is water.

2. The composition according to claim 1, characterized in that, It is composed of the following raw materials in the following weight ratios: honeysuckle flower extract 1%~2%, forsythia extract 0.5%~1%, bisabolol 0.2%~0.5%, asiaticoside 0.1%~0.3%, glycerin 4%~5%, cetearyl alcohol polyether 5%~10%, cetearyl alcohol 2%~2.5%, jojoba oil 3%~4%, squalane 1%~1.5%, acrylamide / acryloyl dimethyl taurate copolymer 1.5%~2%, phenoxyethanol 0.8%~1.0%, tocopherol 0.08%~0.12%, polydimethylsiloxane 1%~1.5%, isohexadecane 1%~2%, isononyl isononanoate 3%~3.5%, and the balance is water.

3. The composition according to claim 2, characterized in that, It is composed of the following raw materials in the following weight ratios: honeysuckle flower extract 1%~1.2%, forsythia extract 0.5%~0.6%, bisabolol 0.4%~0.5%, asiaticoside 0.2%~0.3%, glycerin 4%~4.5%, cetearyl alcohol polyether 8%~10%, cetearyl alcohol 2.4%~2.5%, jojoba oil 3.5%~4%, squalane 1.2%~1.5%, acrylamide / acryloyl dimethyl taurate copolymer 1.5%~1.8%, phenoxyethanol 0.8%~0.9%, tocopherol 0.09%~0.11%, polydimethylsiloxane 1.2%~1.5%, isohexadecane 1.8%~2%, isononyl isononanoate 3.2%~3.5%, and the balance is water.

4. The use of the composition according to any one of claims 1 to 3 in the preparation of a soothing and moisturizing lotion.

5. A soothing and moisturizing lotion, characterized in that, It is prepared from the composition according to any one of claims 1 to 3.

6. A method for preparing the soothing and moisturizing lotion according to claim 5, characterized in that, Includes the following steps: (1) Add the honeysuckle flower extract, forsythia extract, asiaticoside, glycerin, and phenoxyethanol to water and heat to obtain an aqueous phase; (2) The bisabolol, cetearyl alcohol polyether, cetearyl alcohol, jojoba oil, squalane, tocopherol, polydimethylsiloxane, isohexadecane, and isononyl isononanoate are mixed until completely dissolved to obtain the oil phase; (3) Under conditions of 65℃~75℃, the aqueous phase is added to the oil phase while homogenizing. After the aqueous phase is completely added, homogenization is continued for 8min~12min to obtain an emulsion. (4) When the emulsion is stirred and cooled to 45°C~55°C, the acrylamide / acryloyldimethyltaurate copolymer is added and stirred until it is completely swollen; (5) Continue stirring until room temperature, and the product is ready.

7. The method for preparing the soothing and moisturizing lotion according to claim 6, characterized in that, In step (1), the temperature is heated to 65°C to 75°C, preferably to 68°C to 72°C.

8. The method for preparing the soothing and moisturizing lotion according to claim 6, characterized in that, In step (2), the solution is dissolved at 65°C to 75°C until completely dissolved, preferably at 68°C to 72°C until completely dissolved.

9. The method for preparing the soothing and moisturizing lotion according to claim 6, characterized in that, The rotational speed of homogenization in step (3) is 15,000 rpm to 18,000 rpm, preferably 16,000 rpm to 18,000 rpm.

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