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

Abstract

The invention discloses a soothing and moisturizing composition as well as a preparation method and application thereof, and relates to the technical field of cosmetics. The invention provides a soothing and moisturizing composition. The soothing and moisturizing composition is prepared from the following components in parts by weight: 1 to 10 parts of chondrus crispus extract, 1 to 10 parts of water temple porphyra polysaccharide, 1 to 10 parts of crithmum maritimum extract, 0.05 to 2 parts of oligopeptide-1 and 0.05 to 2 parts of palmitoyl pentapeptide-4. The inventor discovers that when existing at the same time, the chondrus crispus extract, the laver polysaccharide, the crithmum maritimum extract, the oligopeptide-1 and the palmitoyl pentapeptide-4 can cooperate with one another and act together from multiple aspects, and the effects of multi-channel, deep moisturizing, soothing and skin barrier enhancing are better achieved.

Description

Technical Field

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

[0002] With the accelerated pace of life and the intensification of environmental pollution, skin problems such as dryness, sensitivity, and inflammation are increasing. Consumers' demand for skin care products continues to increase, especially the demand for soothing and moisturizing products is more urgent. Soothing and moisturizing products are designed to reduce the skin's inflammatory response and enhance the skin's moisturizing ability, thereby improving the health and beauty of the skin. However, existing soothing and moisturizing products have some limitations in terms of effect and ingredients.

[0003] Current status of soothing and moisturizing products: (1) Many soothing and moisturizing products rely on only a single or a few ingredients and lack multiple synergistic effects, resulting in limited effects. For example, some products only contain basic moisturizing ingredients such as hyaluronic acid or glycerin, which cannot fully meet the various needs of the skin. Single-ingredient products are difficult to provide multiple effects such as moisturizing, soothing and anti-oxidation at the same time, and cannot comprehensively improve skin conditions. (2) The moisturizing effect of some products is not long-lasting. The skin may feel moisturized in a short period of time, but the effect gradually weakens after long-term use. For example, some products use silicone oil or mineral oil as moisturizing ingredients. Although they can provide good moisturizing effects in the short term, long-term use may cause damage to the skin barrier function. (3) Some products only provide moisturizing effects on the surface of the skin, lack deep moisturizing effects, and cannot fundamentally improve the problem of dry skin. (4) The soothing effect of some products is not obvious, and they cannot effectively reduce the skin's inflammatory response and irritation, and cannot fundamentally reduce the skin's inflammatory response. For example, some products use menthol or tea tree oil as soothing ingredients, but these ingredients may cause irritation to some sensitive skin.

[0004] Therefore, a soothing and moisturizing composition with multiple channels, deep moisturizing and soothing, and long-term effects has broad application prospects. Summary of the invention

[0005] Based on this, the purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and provide a multi-channel, deep moisturizing and soothing, long-term soothing and moisturizing composition and its preparation method and application.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the present invention is: a soothing and moisturizing composition, comprising the following components in parts by weight: 1-10 parts of Chondrus crispus extract, 1-10 parts of Porphyra sutchuenensis polysaccharide, 1-10 parts of Crimson Fern extract, 0.05-2 parts of oligopeptide-1, and 0.05-2 parts of palmitoyl pentapeptide-4.

[0007] The present invention provides a soothing and moisturizing composition. The inventor found in the actual experimental process that the wrinkled chondrus extract, the water front temple porphyra polysaccharide, and the sea fennel extract work together. On the one hand, the three components work together to better form a moisturizing barrier, further enhance the barrier function of the skin, and thus reduce the damage of water loss and external stimuli. On the other hand, the three components of the wrinkled chondrus extract, the water front temple porphyra polysaccharide, and the sea fennel extract work together to better neutralize free radicals and reduce the damage of oxidative stress to the skin, thereby more effectively reducing the inflammatory response of the skin and playing a soothing and protective role. At the same time, the inventor found that when the soothing and moisturizing composition further comprises oligopeptide-1 and palmitoyl pentapeptide-4, it can promote cell regeneration, promote the synthesis of collagen and hyaluronic acid, enhance the self-repair ability of the skin, and further enhance the barrier function of the skin; at the same time, oligopeptide-1 and palmitoyl pentapeptide-4 work together to further reduce the inflammatory response of the skin, thereby playing a soothing role. Therefore, when Chondrus crispus extract, Porphyra migratoria polysaccharide, Crimson Fennel extract, Oligopeptide-1, and Palmitoyl Pentapeptide-4 exist at the same time, they can synergize with each other and work together from multiple aspects to better achieve the effects of multi-channel, deep moisturizing and soothing, and enhancing the skin barrier.

[0008] Preferably, the soothing and moisturizing composition comprises the following components in parts by weight: 6-8 parts of Chondrus crispus extract, 3-5 parts of Porphyra sutchuenensis polysaccharide, 3-5 parts of Crimson Fennel extract, 0.5-1.5 parts of oligopeptide-1, and 0.5-1 parts of palmitoyl pentapeptide-4.

[0009] Preferably, the mass percentage of the Chondrus crispus extract is 40-50%.

[0010] Preferably, the weight ratio of the oligopeptide-1 to palmitoyl pentapeptide-4 is oligopeptide-1:palmitoyl pentapeptide-4=(2-3):1.

[0011] The inventors found in actual experiments that the weight of the components in the soothing and moisturizing composition will affect the performance of the product. When the weight of the components is further selected to be within the above range, the obtained product has better moisturizing, soothing and skin barrier enhancing effects.

[0012] Preferably, the method for preparing the Chondrus crispus extract comprises the following steps:

[0013] (1) drying the Chondrus crispus, crushing it, and sieving it to obtain Chondrus crispus powder; the Chondrus crispus powder has a mesh size of 100-150 meshes;

[0014] (2) extracting Chondrus crispus powder with 50-80 times the amount of ethanol solution, collecting the filtrate and the residue, concentrating the filtrate into a paste, and drying to constant weight to obtain extract A;

[0015] (3) extracting the filter residue in step (2) with 10-20 times the amount of extraction solvent, collecting the filtrate, concentrating it into a paste, and drying it to constant weight to obtain extract B; the extraction solvent is deionized water with a pH value of 9-10;

[0016] (4) The extract A in step (2) and the extract B in step (3) are mixed to obtain the Chondrus crispus extract.

[0017] Preferably, in step (2), the volume fraction of the ethanol solution is 50-80%; the extraction is ultrasonic extraction, the temperature of the ultrasonic extraction is 50-60°C, the time of the ultrasonic extraction is 0.5-1h, the power of the ultrasonic extraction is 200-250W; the temperature of the drying is 60-70°C.

[0018] Preferably, in step (3), the extraction is ultrasonic extraction, the temperature of the ultrasonic extraction is 70-90°C, the time of the ultrasonic extraction is 0.5-1h, the power of the ultrasonic extraction is 200-250W; and the temperature of the drying is 60-70°C.

[0019] Preferably, in step (3), the extraction solvent is deionized water with a pH value of 9-10, and the pH value of the deionized water is adjusted with an alkali; preferably, the alkali is sodium hydroxide.

[0020] The inventors found in the actual experimental process that the preparation method of the Chondrus crispus extract has a great influence on the final moisturizing and soothing effect. When the above-mentioned specific preparation method of the Chondrus crispus extract is adopted, there is a balance between the active ingredients such as adenosine, glycolipids, and polysaccharides in the prepared Chondrus crispus extract. At the above-mentioned specific active ingredients and polysaccharide content, it has better synergy with Mizuzenji Porphyra polysaccharides, sea fennel extract, oligopeptide-1 and palmitoyl pentapeptide-4, and the obtained product has better moisturizing, soothing and skin barrier enhancement effects.

[0021] In addition, the present invention provides application of the soothing and moisturizing composition in preparing skin products.

[0022] Furthermore, the present invention provides a skin product, comprising the soothing and moisturizing composition.

[0023] Preferably, the skin product comprises one of lotion, emulsion, cream, mask, essence and spray, and the dosage form of the skin product is one of water-based, emulsion, spray, cream and essence.

[0024] Optionally, the present invention provides a skin product, comprising 0.5-5% of the soothing and moisturizing composition, 4-40% of a cosmetic base, and the balance being water.

[0025] Optionally, the cosmetic matrix includes at least one of a thickener, a moisturizer, an emulsifier, a preservative, a fragrance, and a pH adjuster.

[0026] Exemplarily, the thickener includes at least one of xanthan gum, ammonium acryloyldimethyltaurate / VP copolymer, and sclerotium gum; the moisturizer includes at least one of glycerin, allantoin, sodium polyacrylate, hydrogenated lecithin, betaine, β-glucan, trehalose, caprylyl glycol, dipropylene glycol, sodium hyaluronate, and 1,2-butylene glycol; the emulsifier includes at least one of coconut oil alcohol-caprylate / caprate, polydimethylsiloxane, caprylic capric triglyceride, C14-22 alcohol, C12-20 alkyl glucoside, cetearyl glucoside, isononyl isononanoate, pentaerythritol tetraester, polydimethylsiloxane, stearyl alcohol, hydroxystearic acid, polymethylsilsesquioxane, pentaerythritol distearate, and sucrose stearate; the preservative includes at least one of 1,2-hexanediol and p-hydroxyacetophenone; the pH adjuster includes at least one of arginine and EDTA-2Na.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention provides a soothing and moisturizing composition. The inventor found in the actual experimental process that the wrinkled chondrus extract, the water front temple porphyra polysaccharide, and the sea fennel extract work together. On the one hand, the three components work together to better form a moisturizing barrier, further enhance the barrier function of the skin, and thus reduce water loss and external stimulation. On the other hand, the above-mentioned wrinkled chondrus extract, the water front temple porphyra polysaccharide, and the sea fennel extract work together to better neutralize free radicals and reduce the damage of oxidative stress to the skin, thereby more effectively reducing the inflammatory response of the skin and playing a soothing and protective role. At the same time, the inventor found that when the soothing and moisturizing composition further contains oligopeptide-1 and palmitoyl pentapeptide-4, it can promote cell regeneration, promote the synthesis of collagen and hyaluronic acid, enhance the self-repair ability of the skin, and further enhance the barrier function of the skin; at the same time, oligopeptide-1 and palmitoyl pentapeptide-4 work together to further reduce the inflammatory response of the skin, thereby playing a soothing role. Therefore, when Chondrus crispus extract, Porphyra migratoria polysaccharide, Crimson Fennel extract, Oligopeptide-1, and Palmitoyl Pentapeptide-4 exist at the same time, they can synergize with each other and work together from multiple aspects to better achieve the effects of multi-channel, deep moisturizing and soothing, and enhancing the skin barrier. DETAILED DESCRIPTION

[0028] In order to better illustrate the purpose, technical scheme and advantages of the present invention, the present invention will be further described below in conjunction with specific embodiments. Its purpose is to understand the content of the present invention in detail, rather than to limit the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Unless otherwise specified, the experimental reagents and instruments designed for the implementation and comparative examples of the present invention are all commonly used ordinary reagents and instruments, which can be obtained from commercial channels. In the implementation and comparative examples, the experimental methods used are conventional methods unless otherwise specified; and unless otherwise specified, the raw materials used in parallel experiments are the same batch of raw materials.

[0029] The raw materials used in the present invention are further described:

[0030] Chondrus crispus extract-1: Homemade, preparation method is as follows:

[0031] (1) drying the Chondrus crispus, crushing it, and sieving it to obtain Chondrus crispus powder; the Chondrus crispus powder has a mesh size of 100 mesh;

[0032] (2) extracting Chondrus crispus powder with 50 times the volume fraction of 80% ethanol solution, collecting the filtrate and the filter residue, concentrating the filtrate to a paste, and drying at 60° C. to constant weight to obtain extract A; the temperature of the ultrasonic extraction is 50° C., the time of the ultrasonic extraction is 1 h, and the power of the ultrasonic extraction is 200 W;

[0033] (3) extracting the filter residue in step (2) with 15 times the amount of extraction solvent, collecting the filtrate and concentrating it into a paste, and drying it at 60° C. to constant weight to obtain extract B; the extraction solvent is deionized water with a pH value of 9, and the pH value is adjusted with sodium hydroxide; the temperature of the ultrasonic extraction is 70° C., the time of the ultrasonic extraction is 0.5 h, and the power of the ultrasonic extraction is 200 W;

[0034] (4) The extract A in step (2) and the extract B in step (3) are slowly mixed to obtain the Chondrus crispus extract.

[0035] Chondrus crispus extract-2: homemade, compared with Chondrus crispus extract-1, only the temperature of ultrasonic extraction in step (2) is different, the temperature of ultrasonic extraction is 60°C, and the rest of the preparation methods are exactly the same.

[0036] Chondrus crispus extract-3: homemade, compared with Chondrus crispus extract-1, only the temperature of ultrasonic extraction in step (3) is different, the temperature of ultrasonic extraction is 90°C, and the rest of the preparation methods are exactly the same.

[0037] Chondrus crispus extract-4: homemade, compared with Chondrus crispus extract-1, only the pH of the extraction solvent in the ultrasonic extraction in step (3) is different, the pH of the solvent for the ultrasonic extraction is 10, and the rest of the preparation methods are exactly the same.

[0038] Chondrus crispus extract-5: homemade, compared with Chondrus crispus extract-1, only the pH of the extraction solvent in the ultrasonic extraction in step (3) is different, the pH of the ultrasonic extraction solvent is 8, and the rest of the preparation methods are exactly the same.

[0039] Chondrus crispus extract-6: homemade, compared with Chondrus crispus extract-1, only the pH of the extraction solvent in the ultrasonic extraction in step (3) is different, the pH of the solvent for the ultrasonic extraction is 11, and the rest of the preparation methods are exactly the same.

[0040] Chondrus crispus extract-7: homemade, compared with Chondrus crispus extract-1, only the extraction solvent of the ultrasonic extraction in step (3) is deionized water, the pH value is 6.5, and the rest of the preparation methods are exactly the same.

[0041] Chondrus crispus extract-8: Homemade. Compared with Chondrus crispus extract-1, no residue extraction is performed. The rest of the preparation methods are exactly the same. The specific preparation method is as follows:

[0042] (1) drying the Chondrus crispus, crushing it, and sieving it to obtain Chondrus crispus powder; the Chondrus crispus powder has a mesh size of 100 mesh;

[0043] (2) Using 50 times the volume fraction of 80% ethanol solution to extract the crispy Chondrus crispus powder, collecting the filtrate, concentrating the filtrate into a paste, and drying at 60° C. to constant weight to obtain the crispy Chondrus crispus extract; the temperature of the ultrasonic extraction is 50° C., the time of the ultrasonic extraction is 1 h, and the power of the ultrasonic extraction is 200 W.

[0044] Chondrus crispus extract-9: homemade, compared with Chondrus crispus extract-1, only step (3) is different, and the rest of the preparation method is exactly the same, specifically as follows: use 15 times the amount of extraction solvent to extract the filter residue in step (2), collect the filtrate and add 3 times the volume of anhydrous ethanol, let it stand at 4°C overnight, centrifuge to separate the supernatant, concentrate the supernatant to a paste, and dry it at 60°C to constant weight to obtain extract B; the extraction solvent is deionized water with a pH value of 9, and the pH value is adjusted with sodium hydroxide; the temperature of the ultrasonic extraction is 70°C, the time of ultrasonic extraction is 0.5h, and the power of ultrasonic extraction is 200W;

[0045] Suizenji laver polysaccharide: Chengxiu Synsil, Guangzhou Huayang Biotechnology Co., Ltd.;

[0046] Sea fennel extract: Xi'an Precision Bioengineering Co., Ltd.;

[0047] Oligopeptide-1: Native Peptide Biotechnology (Tianjin) Co., Ltd.

[0048] Palmitoyl pentapeptide-4: Shaanxi Denis Biotechnology Co., Ltd.;

[0049] Helophyte Extract: Snot Bio;

[0050] Alpine edelweiss extract: Guangzhou Hengyue Biotechnology Co., Ltd.;

[0051] Oligopeptide-3: Xi'an Puruis Bioengineering Co., Ltd.;

[0052] Examples and Comparative Examples

[0053] The present invention provides a soothing and moisturizing composition. The components and weight portions of the soothing and moisturizing compositions of the embodiments and comparative examples are selected as shown in Tables 1 to 3 below. The preparation method of the soothing and moisturizing composition comprises the following steps: weighing Chondrus crispus extract, Porphyra mizuna polysaccharide, Crimson fennel extract, oligopeptide-1, and palmitoyl pentapeptide-4 according to weight portions, and not adding relevant components if there are no relevant components, and adding the components in the comparative example instead, and mixing evenly to obtain the soothing and moisturizing composition.

[0054] Table 1

[0055]

[0056]

[0057] Table 2

[0058]

[0059] Table 3

[0060]

[0061]

[0062] Application Examples

[0063] Application Examples 1-15 of the present invention, Comparative Application Examples 1-8 and Blank Application Examples provide an emulsion, the components (mass percentage) of the emulsion are shown in Table 4;

[0064] The soothing moisturizing compositions used in Application Examples 1-14 are the soothing moisturizing compositions prepared in Examples 1-14 respectively; the soothing moisturizing compositions used in Comparative Application Examples 1-8 are the soothing moisturizing compositions prepared in Comparative Examples 1-8 respectively; for example, the soothing moisturizing composition used in Application Example 1 is the soothing moisturizing composition in Example 1, the soothing moisturizing composition used in Application Example 5 is the soothing moisturizing composition in Example 5, and the same applies to the others; the soothing moisturizing composition used in Application Example 15 is the soothing moisturizing composition prepared in Example 1.

[0065] Table 4

[0066]

[0067]

[0068] The present invention provides a method for preparing the emulsion, which comprises the following steps:

[0069] (1) Mix the humectant, thickener and part of the pH adjuster with water, heat to 80° C., homogenize at 1500 rpm for 5 minutes, and keep warm for later use to obtain phase A;

[0070] (2) Mix the emulsifier, heat to 70° C., and homogenize at 1500 rpm for 5 min. After homogenization, keep warm for later use to obtain phase B;

[0071] (3) Mix the preservatives and heat to 50° C. to melt to obtain preformed phase C;

[0072] (4) Phase A is heated to 80° C., and phase B is added at a rotation speed of 200 rpm, and stirred and mixed. Then, the temperature is lowered to 50° C., and phase C is added at a rotation speed of 200 rpm, and stirred and mixed. Then, the temperature is lowered to below 45° C., and the soothing and moisturizing composition is added, and stirring is continued for 5 minutes. Finally, the remaining pH adjuster is added to adjust the pH to 6.5, and stirring is stopped. The material is discharged to obtain the emulsion.

[0073] Performance Test-1 Patch Test.

[0074] 30 volunteers were recruited, 15 males and 15 females, aged 20-50 years old. The closed patch test method was used. An equal amount (0.020mL-0.025mL) of the test sample (emulsion) was placed in a specific patch tester, which was applied to the volunteer's arm with a low-allergenic tape, and gently pressed to evenly apply it to the skin for 24 hours; the blank control group was distilled water. After 24 hours, the patch tester was removed, and the skin reaction was observed after 0.5h, 24h, and 48h, and the results were recorded. The level of adverse reactions to the skin is shown in Table 5 below.

[0075] Table 5

[0076]

[0077] From the test results, it can be seen that there were 0 cases of withdrawal and 0 cases of adhesive tape allergy in the technical solution provided by the present invention. Among them, no adverse reactions occurred in the application examples, comparative application examples and blank application examples.

[0078] Performance test-2 human body repair efficacy experiment.

[0079] The effect examples of the present invention verify the repairing and soothing effects of the emulsions prepared by application examples 1-15, comparative application examples 1-8 and blank application examples.

[0080] The test process is as follows: Volunteers aged 18-45 were selected. No skin care products were applied on the day of the visit. After washing their faces, the subjects sat quietly in a constant temperature and humidity room at 21±1℃ and 50±10% for 25 minutes.

[0081] Use Visia-7 to take facial photos and perform image analysis on the exported red zone images to obtain the a* value;

[0082] Transepidermal water loss probe TM Hex (Courage+Khazaka) test initial facial TEWL value.

[0083] After the 14th day of the visit, the subjects first cleaned their faces with a cleansing product and dried their skin with dry facial tissues, and sat quietly in a laboratory with a temperature of 21°C ± 1°C and a humidity of 50% ± 10% for 25 minutes for testing.

[0084] The subjects were randomly divided into 24 groups, with 5 people in each group. The blank application example, application examples 1-15, and comparison application examples 1-8 lotions were randomly applied to the whole face. TEWL test and Visia-7 photography were performed on day 0 and day 14 to analyze the improvement of TEWL and a* value of each volunteer on day 0 and day 14. The improvement is represented by the improvement rate of each value, and the calculation method is as follows:

[0085] Improvement rate relative to initial value = (X 使用前 -X 使用后 ) / X 使用前 ×100%, where X is used to calculate the improvement rate at 2h, 4h, and 14 days. 使用前 All refer to the initial test values ​​on Day 0 when the product was not used.

[0086] The transepidermal water loss TEWL value is a commonly used indicator reflecting the barrier function of the stratum corneum. The lower the TEWL value, the better the skin barrier function and the better the repair effect of the product. The redness a* value reflects the degree of sensitivity and redness of the skin. The lower the a* value, the lower the degree of skin stress and the better the soothing effect of the product.

[0087] The test results are shown in Tables 6 and 7.

[0088] Table 6

[0089]

[0090]

[0091] Table 7

[0092]

[0093] It can be seen from the above table that the emulsion prepared in the application example of the present invention, when Chondrus crispus extract, Porphyra mizuna polysaccharide, Crimson Fennel extract, oligopeptide-1, and palmitoyl pentapeptide-4 exist at the same time, can cooperate with each other and work together from multiple aspects to better achieve the effects of multi-channel, deep moisturizing and soothing, and enhancing the skin barrier.

[0094] From the comparison of Application Examples 1-9, it can be seen that when the Chondrus crispus extract is prepared by the specific preparation method of the Chondrus crispus extract of the present invention, there is a balance between the active ingredients such as adenosine, glycolipids, and polysaccharides in the prepared Chondrus crispus extract. At the above-mentioned specific active ingredients and polysaccharide contents, it has better synergy with Mizuzenji Porphyra polysaccharides, sea fennel extract, oligopeptide-1 and palmitoyl pentapeptide-4, and the obtained product has better moisturizing and soothing effects and enhancing the skin barrier.

[0095] It can be seen from the 2h-4h test results that when the Chondrus crispus extract is prepared by the specific preparation method of the Chondrus crispus extract of the present invention, at the above-mentioned specific active ingredient and polysaccharide content, it has better synergy with the Mizuzenji Porphyra polysaccharide, sea fennel extract, oligopeptide-1 and palmitoyl pentapeptide-4, and the cell regeneration ability and self-repair ability are further improved, and the improvement rate in 4h is significantly improved.

[0096] From the comparison of Application Example 1 and Application Examples 10-14, it can be seen that when the crispy chondrus crispus extract, the mizuzenji laver polysaccharide, the sea fennel extract, oligopeptide-1, and palmitoyl pentapeptide-4 exist at the same time, when the mass percentage of the crispy chondrus crispus extract is 40-50%, and / or the weight ratio of the oligopeptide-1 and palmitoyl pentapeptide-4 is oligopeptide-1: palmitoyl pentapeptide-4 = (2-3): 1, the synergistic effect is better, which can better promote cell regeneration, better maintain deep moisturizing and soothing, and have a long-term soothing and moisturizing effect.

[0097] From the comparison between Application Example 1 and Application Example 15, it can be seen that the soothing and moisturizing composition provided by the present invention can promote cell regeneration, maintain deep moisturizing and soothing, and has a long-term soothing and moisturizing effect when it is 0.5-5%.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A soothing and moisturizing composition, characterized in that: The invention comprises the following components in parts by weight: 1-10 parts of Chondrus crispus extract, 1-10 parts of Porphyra suizensis polysaccharide, 1-10 parts of Crinum truncatum extract, 0.05-2 parts of oligopeptide-1 and 0.05-2 parts of palmitoyl pentapeptide-4.

2. The soothing and moisturizing composition according to claim 1, characterized in that: The invention comprises the following components in parts by weight: 6-8 parts of Chondrus crispus extract, 3-5 parts of Porphyra suizensis polysaccharide, 3-5 parts of Crinum marinum extract, 0.5-1.5 parts of oligopeptide-1 and 0.5-1 parts of palmitoyl pentapeptide-4.

3. The soothing and moisturizing composition according to claim 1, characterized in that: The mass percentage of the Chondrus crispus extract is 40-50%.

4. The soothing and moisturizing composition according to claim 1, characterized in that: The weight ratio of the oligopeptide-1 to palmitoyl pentapeptide-4 is oligopeptide-1:palmitoyl pentapeptide-4=(2-3):

1.

5. The soothing and moisturizing composition according to claim 1, characterized in that: The preparation method of the Chondrus crispus extract comprises the following steps: (1) drying the Chondrus crispus, crushing it, and sieving it to obtain Chondrus crispus powder; the Chondrus crispus powder has a mesh size of 100-150 meshes; (2) extracting Chondrus crispus powder with 50-80 times the amount of ethanol solution, collecting the filtrate and the residue, concentrating the filtrate into a paste, and drying to constant weight to obtain extract A; (3) extracting the filter residue in step (2) with 10-20 times the amount of extraction solvent, collecting the filtrate, concentrating it into a paste, and drying it to constant weight to obtain extract B; the extraction solvent is deionized water with a pH value of 9-10; (4) The extract A in step (2) and the extract B in step (3) are mixed to obtain the Chondrus crispus extract.

6. The soothing and moisturizing composition according to claim 5, characterized in that: In the step (2), the volume fraction of the ethanol solution is 50-80%; the extraction is ultrasonic extraction, the temperature of the ultrasonic extraction is 50-60°C, the time of the ultrasonic extraction is 0.5-1h, the power of the ultrasonic extraction is 200-250W; the temperature of the drying is 60-70°C.

7. The soothing and moisturizing composition according to claim 5, characterized in that: In the step (3), the extraction is ultrasonic extraction, the temperature of the ultrasonic extraction is 70-90°C, the time of the ultrasonic extraction is 0.5-1h, the power of the ultrasonic extraction is 200-250W; the temperature of the drying is 60-70°C.

8. Use of the soothing and moisturizing composition according to any one of claims 1 to 7 in the preparation of skin products.

9. A skin care product, characterized in that: The skin product comprises the soothing and moisturizing composition according to any one of claims 1 to 7.

10. The skin care product according to claim 9, wherein: The skin products include one of lotion, emulsion, cream, facial mask, essence and spray.

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