Soothing face cream with moisturizing function and preparation method thereof

Abstract

The invention discloses soothing face cream with a moisturizing function and a preparation method of the soothing face cream, and belongs to the technical field of cosmetic face cream. Comprising the following components in percentage by mass: 3%-5% of a hydrogenated styrene-butadiene block copolymer, 2%-4% of isopropyl myristate, 1%-3% of glycosphingolipids, 2%-4% of dipolypentaerythritol hexanoate, 1%-3% of c12 / 13 alcohol lactate, 0.5%-1.5% of tocopheryl acetate, 0.1%-0.5% of bisabolol, 2%-5% of a fermentation extract and the balance of water. 1%-3% of a kosteletzkya virginica extract, 0.5%-1.5% of an embelia fortuneana extract, 0.5%-1.5% of an apium graveolens seed extract, 0.5%-1.5% of an astragalus membranaceus extract, 0.5%-1.5% of a phellodendron amurense bark extract, 2-5% of a vegetable oil composite liquid crystal emulsifier, 8%-15% of a humectant, 0.3%-0.8% of a preservative, 0.05%-0.15% of disodium EDTA and the balance of water. According to the invention, rape oil amide propyl-dimethylamine is prepared into a vegetable oil composite liquid crystal emulsifier to be applied to a face cream formula, an oil-in-water emulsion system with efficient moisturizing and relieving effects and strong stability is constructed, good smearing property and rapid absorbability of the face cream are realized, and the durability of the moisturizing and relieving effects of the face cream is remarkably improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of cosmetic creams, and particularly relates to a soothing cream with a moisturizing function and a preparation method thereof. Background Art

[0002] In the current rapidly developing field of cosmetics, with the improvement of people's living standards and the enhancement of skin care awareness, cosmetics have become essential for daily skin care. People have also gained a more profound and comprehensive understanding of the physiological structure and functions of the skin. The stratum corneum, as the first line of defense of the skin, is composed of tightly bound corneocytes and intercellular lipids, playing a crucial role in maintaining the normal physiological state of the skin. This structure can not only effectively block the intrusion of external irritants but also largely reduce the loss of internal skin moisture to the external environment and has a certain moisture absorption capacity, thereby helping the skin maintain an appropriate moisture content and keep the skin moist and elastic.

[0003] Currently, the emulsification systems of cosmetic lotions and creams on the market mainly include two forms: oil-in-water (O / W) and water-in-oil (W / O). Cosmetic products with an O / W emulsification system have the advantages of smooth application, easy absorption by the skin, and a refreshing and non-greasy feeling after use due to their relatively high water phase ratio. However, the sealing performance of this emulsification system is relatively weak, making it difficult to maintain effects such as moisturization for a long time. After using for a period of time, the skin is prone to a dry feeling, unable to meet consumers' demand for long-term moisturization. Products with a W / O emulsification system, due to the relatively large proportion of the oil phase components, have strong sealing properties and can form a relatively tight oil film on the skin surface, thus effectively locking in skin moisture and showing good moisturizing effects. However, products of this type often feel relatively thick when applied, are not easy to spread, have an obvious greasy feeling, and have a slow absorption rate, bringing an unpleasant use experience to consumers and restricting their market application scope to a certain extent.

[0004] For the majority of consumers, aspects such as the application feeling, absorption efficiency, efficacy persistence, and skin feel comfort after use of emulsification system products are key factors they focus on when choosing and purchasing cosmetics. Therefore, developing a new type of cream that can overcome the disadvantages of existing emulsification systems, has excellent moisturizing functions, and can bring a comfortable and soothing skin feel experience has become an important technical challenge currently faced by the cosmetics industry. Summary of the Invention

[0005] In view of the above situation, to overcome the defects of the prior art, the present invention prepares rapeseed oil amide propyl-dimethylamine into a vegetable oil composite liquid crystal emulsifier and applies it to the cream formula, constructing an oil-in-water emulsion system with both high-efficiency moisturizing and soothing effects and strong stability, achieving the simultaneous improvement of the persistence of its moisturizing and soothing effects while ensuring good spreadability and rapid absorbability of the cream, optimizing the overall skin feel experience, making the cream texture uniform and delicate, the active ingredients evenly dispersed, and giving full play to the synergistic effect of each ingredient, so as to meet the needs of consumers for high-quality cosmetics.

[0006] To achieve the above object, the following technical solutions are adopted: The present invention provides a soothing cream with a moisturizing function, comprising the following components in mass percentage: 3%-5% of hydrogenated styrene-butadiene block copolymer, 2%-4% of isopropyl myristate, 1%-3% of glycosphingolipids, 2%-4% of dipentaerythritol hexaoleate, 1%-3% of c12 / 13 alcohol lactate, 0.5%-1.5% of tocopheryl acetate, 0.1%-0.5% of bisabolol, 2%-5% of fermented extract, 1%-3% of extracts of Kosteletzkya virginica, 0.5%-1.5% of extracts of Embelia ribes, 0.5%-1.5% of extracts of Apium graveolens seeds, 0.5%-1.5% of extracts of Astragalus purpureus, 0.5%-1.5% of extracts of Phellodendron amurense bark, 2%-5% of vegetable oil composite liquid crystal emulsifier, 8%-15% of humectant, 0.3%-0.8% of preservative, 0.05%-0.15% of disodium EDTA, and the balance is water.

[0007] Hydrogenated styrene-butadiene block copolymer: A high-performance polymer that mainly thickens and stabilizes the system in the cream, enabling the cream to have a uniform and delicate texture, being smoother and more fluent when applied, helping other active ingredients to be evenly dispersed throughout the formula system, so as to better exert their respective effects and improve the overall quality and usage experience of the cream.

[0008] Isopropyl myristate: Esterified from myristic acid and isopropanol, it has excellent moisturizing properties, can form a thin oil film on the skin surface, effectively prevent excessive loss of skin moisture, and keep the skin soft and smooth at all times. At the same time, it can also improve the extensibility of the cream, making the cream easier to spread and apply evenly on the skin, and promoting the absorption of other nutritional ingredients by the skin.

[0009] Glycosphingolipids: As an important component of intercellular lipids in skin cells, it plays a key role in maintaining the integrity and stability of the skin barrier. It can fill the lipid gaps between skin cells, enhance the skin's moisturizing ability, prevent the intrusion of external irritants, help the skin maintain normal physiological functions and water balance, make the skin present a healthy, moist and shiny state, and effectively resist the damage and interference of the external environment to the skin.

[0010] Dipentaerythritol hexaoctanoate: Belonging to the polyol ester compounds, it is an efficient emollient. It can deeply penetrate into the stratum corneum of the skin, replenish rich lipid components for the skin, endow the skin with a smooth and delicate touch, significantly increase the moisturizing degree and effect of the cream, effectively relieve the dryness of the skin, keep the skin in a moist, plump and healthy state for a long time, and provide long-term nourishment and care for the skin.

[0011] C12 / 13 alcohol lactate: It has good hydrophilicity and lipophilicity, can form a moisture-retaining film on the skin surface, replenish moisture for the skin, improve the dry condition of the skin, and enhance the skin's moisture retention ability. At the same time, it also has a certain soothing effect, can reduce the discomfort caused by skin dehydration or external irritation, keep the skin in a comfortable and relaxed state, and help maintain the stability and health of the skin.

[0012] Tocopheryl acetate: That is, vitamin E acetate, is a common and effective antioxidant. It can capture and scavenge free radicals in the skin. Free radicals are one of the important factors leading to skin aging, wrinkles, relaxation and pigmentation. Through its antioxidant effect, tocopheryl acetate can effectively prevent the skin aging process, protect the integrity and normal function of skin cells, maintain the elasticity and firmness of the skin, and keep the skin in a young, healthy and energetic state.

[0013] Bisabolol: Extracted from chamomile, it has significant soothing and anti-inflammatory effects. It can inhibit the release of various inflammatory mediators in the skin inflammation reaction process, reduce the discomfort symptoms such as skin redness, itching and stinging, especially has good care effect on sensitive skin. Bisabolol can enhance the skin's tolerance, reduce the skin's sensitivity to external stimuli, help repair the damaged skin barrier, and make the skin return to a healthy and stable state, providing gentle and effective protection for the skin.

[0014] Fermented extract: Produced through the microbial fermentation process, it is rich in various nutrients such as amino acids, vitamins, minerals and bioactive peptides. These components can deeply penetrate into the interior of skin cells, promote cell metabolism, accelerate cell renewal, and enhance the vitality and self-repair ability of skin cells. The fermented extract can not only improve the skin quality, make the skin more delicate, smooth and elastic, but also has certain moisturizing and repairing damaged skin effects, can help the skin resist the pressure and damage of the external environment, and maintain the healthy state of the skin.

[0015] Seaside mallow extract: extracted from the seaside mallow plant, it is rich in polysaccharides, flavonoids and various minerals. It has excellent moisturizing properties and can form a moisturizing barrier on the skin surface, effectively locking in skin moisture and relieving dryness and tightness of the skin. At the same time, seaside mallow extract also has a soothing effect on the skin, can reduce the impact of external stimuli on the skin, reduce skin sensitivity, maintain the skin's stable state, and keep the skin hydrated, comfortable and healthy.

[0016] White Flower Acid Rattan Seed Extract: Rich in a variety of natural active ingredients, the phytosterols in it help regulate the skin's oil secretion, keep the skin fresh and clean, and prevent problems such as clogged pores and acne caused by excessive oil secretion. In addition, it also has certain antioxidant properties, which can inhibit the generation of free radicals and the occurrence of oxidation reactions, prevent the skin from becoming dull and yellow, maintain the skin's whiteness and luster, and give the skin a natural and healthy color and texture.

[0017] Celery seed extract: Celery seeds are rich in nutrients such as vitamins, minerals and dietary fiber. Its extract is used in facial creams to nourish and moisturize the skin, increase the moisture content and moisturizing ability of the skin. At the same time, it can also promote the synthesis of skin collagen, enhance skin elasticity and improve skin sagging.

[0018] Purple Astragalus Extract: It has good moisturizing and repairing effects on damaged skin. The polysaccharides it contains can absorb and lock moisture, increase the water content of the skin, and keep the skin moist. At the same time, Purple Astragalus Extract can also promote the proliferation and differentiation of skin cells, accelerate the repair process of damaged skin, enhance the barrier function of the skin, improve the skin's defense ability, make the skin healthier and stronger, and effectively resist various damages and irritations to the skin from the external environment.

[0019] Phellodendron bark extract: Phellodendron bark contains a variety of active ingredients such as alkaloids and flavonoids, which have significant antibacterial and anti-inflammatory effects. These ingredients can effectively inhibit the growth and reproduction of harmful bacteria on the skin surface, prevent and reduce the occurrence of skin inflammation, such as acne and dermatitis.

[0020] Moisturizer: It can absorb and lock in a large amount of water, increase the water content of the skin, and keep the skin hydrated and plump. Different moisturizers work synergistically to enhance the moisturizing effect of the cream.

[0021] Preservatives: Prevent the cream from being contaminated by microorganisms during production, storage and use, extend the shelf life of the product, ensure the safety and stability of the cream, and ensure its normal efficacy.

[0022] Disodium EDTA: It can combine with metal ions to avoid the influence of metal ions on the product quality and stability, prevent metal ions from catalyzing oxidation reactions, and maintain the quality and performance of the cream.

[0023] As a further description of the above solution:

[0024] The vegetable oil composite liquid crystal emulsifier is prepared by the following steps:

[0025] S1. Mix deionized water, butanediol, glycerol, and rapeseed oil amide propyl-dimethylamine and heat to 65 - 75 °C until each component is dissolved to obtain the first component. Then mix glutamic acid, aspartic acid, ferulic acid, ursolic acid, oleanolic acid, glycolic acid, and gluconic acid to obtain the second component. Add the second component to the first component and stir until the system becomes clear and transparent, then heat to 85 °C and keep warm for 30 min.

[0026] S2. Mix babassu oil, shea butter, calophyllum inophyllum seed oil, retinyl palmitate, PPG-4-ceteth-20, PEG-30 dipolyhydroxystearate polysorbate-80, polysorbate-60, and caprylic acid cetyl ester to obtain the third component. Add the third component to the mixture obtained in step S1, then keep warm at 85 °C and homogenize at a speed of 4000 - 6000 rpm for 5 - 10 min.

[0027] S3. Cool the mixture obtained in step S2 to 60 °C, add the fourth component composed of 1,2-propanediol and 1,2-hexanediol to it, and stir evenly to obtain the vegetable oil composite liquid crystal emulsifier.

[0028] As a further description of the above solution:

[0029] In the first component, the mass ratio of deionized water, butanediol, glycerol, and rapeseed oil amide propyl-dimethylamine is 40 - 50:10 - 20:10 - 15:5 - 10.

[0030] As a further description of the above solution:

[0031] In the second component, the mass ratio of glutamic acid, aspartic acid, ferulic acid, ursolic acid, oleanolic acid, glycolic acid, and gluconic acid is 2 - 5:1 - 3:1 - 3:0.5 - 1:0.5 - 1:1 - 1.5:0.5 - 1.

[0032] As a further description of the above solution:

[0033] The mass ratio of the seabuckthorn oil, baobab oil, Calophyllum inophyllum L. seed oil, retinyl palmitate, PPG-4-ceteth-20, PEG-30 dipolyhydroxystearate, polysorbate-80, polysorbate-60 and cetyl octanoate in the third component is 12-15:8-12:5-10:1-3:3-6:3-6:1-3:2-5.

[0034] As a further description of the above solution:

[0035] The fourth component includes the following components in parts by weight: 1,2-propanediol and 1,2-hexanediol are 5-8:1-2.

[0036] As a further description of the above solution:

[0037] The mass ratio of the first component, the second component, the third component and the fourth component is 75-85:1-5:10-15:1-3.

[0038] As a further description of the above solution:

[0039] The humectant is selected from one or a combination of more of sodium hyaluronate, glycerin, maltitol, arginine, 1,3-propanediol, 1,3-butanediol, 1,2-hexanediol, 1,2-pentanediol and dipropylene glycol.

[0040] As a further description of the above solution:

[0041] The preservative is selected from one or a combination of more of octanoyl hydroxamic acid, caprylyl glycol, methylparaben, propylparaben, phenoxyethanol, ethylhexylglycerin, sodium benzoate, sodium acetylpropionate, p-anisic acid.

[0042] As a further description of the above solution:

[0043] The fermentation extract is one or a combination of more of bifida ferment lysate, saccharomyces cerevisiae ferment extract and saccharomycopsis ferment extract.

[0044] The present invention also provides a method for preparing a soothing cream with a moisturizing function, comprising the following steps: adding deionized water into an emulsifying pan, starting stirring, heating to 80 - 85 °C, adding a vegetable oil composite liquid crystal emulsifier into the water, and stirring evenly to obtain an aqueous phase; weighing styrene-butadiene block copolymer, isopropyl myristate, glycosphingolipids, dipentaerythritol hexa-caprylate, c12 / 13 alcohol lactate, tocopheryl acetate, bisabolol, fermented extract, extract of Kosteletzkya virginica, extract of Embelia ribes, extract of Apium graveolens seeds, extract of Astragalus purdomii, extract of Phellodendron amurense bark, a moisturizer, a preservative, and disodium EDTA according to mass percentages, adding them into the aqueous phase, heating to 80 - 85 °C, stirring evenly, homogenizing at a rotation speed of 4000 - 6000 rpm for 5 - 10 min, and then stirring and cooling to 60 - 65 °C; discharging to obtain the soothing cream with a moisturizing function.

[0045] The beneficial effects of the present invention are as follows: The vegetable oil composite liquid crystal emulsifier prepared by rapeseed oil amide propyl-dimethylamine in the present invention has a liquid crystal system, and the ordered structure of the liquid crystal emulsification system provides a more efficient channel for the transmission of active ingredients in the cream, enabling various nutritional ingredients in the cream, such as styrene-butadiene block copolymer, isopropyl myristate, etc., to be absorbed by the skin more rapidly and evenly, thus significantly improving the absorbability; the liquid crystal emulsification system can also better protect and stabilize the activity of functional ingredients such as fermented extract and extract of Kosteletzkya virginica, ensuring that they can continuously and effectively play their roles on the skin surface. For example, various nutritional ingredients such as amino acids and vitamins in the fermented extract can penetrate more deeply into the skin cells under the action of the liquid crystal emulsification system, fully promoting cell metabolism and accelerating cell renewal, thereby comprehensively enhancing the moisturizing, repairing, and antioxidant effects of the skin; in addition, this liquid crystal emulsification system can also optimize the skin feel experience of the cream. On the premise of ensuring good moisturizing effect, it can avoid the greasiness of the traditional W / O type emulsification system, making the skin feel fresh and comfortable after use, and not having the problem of non-persistent moisturization like the O / W type emulsification system. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is the evaluation result of the moisturizing property of the soothing cream with a moisturizing function of the present invention;

[0047] Figure 2 It is the evaluation result of the soothing property of the soothing cream with a moisturizing function of the present invention.

[0048] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0049] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0050] Unless otherwise defined, all professional and scientific terms used herein have the same meaning as those familiar to those skilled in the art. In addition, any methods and materials similar or equivalent to the described content can be applied to the present invention. The preferred implementation methods and materials described herein are only for demonstration purposes and do not limit the content of this application.

[0051] The experimental methods in the following embodiments are all conventional methods unless otherwise specified. The test materials used in the following embodiments are all obtained from commercial channels unless otherwise specified.

[0052] Example 1

[0053] A soothing cream with moisturizing function and its preparation method

[0054] The soothing cream includes the following components by mass percentage:

[0055] Hydrogenated styrene-butadiene block copolymer 3%, isopropyl myristate 2%, glycosphingolipids 1%, dipentaerythritol hexa-caprylate 2%, c12 / 13 alcohol lactate 1%, tocopheryl acetate 0.5%, bisabolol 0.1%, fermented extract 2% (bifida ferment lysate), extracts of kosteletzkya virginica 1%, extracts of embelia ribes 0.5%, extracts of apium graveolens seeds 0.5%, extracts of astragalus purdomii 0.5%, extracts of phellodendron amurense bark 0.5%, vegetable oil composite liquid crystal emulsifier 2%, moisturizer 8% (sodium hyaluronate), preservative 0.3% (caprylohydroxamic acid), EDTA disodium 0.05%, and the rest is water.

[0056] The preparation steps of the vegetable oil composite liquid crystal emulsifier are as follows:

[0057] S1: Mix 40 g of deionized water, 10 g of butanediol, 10 g of glycerol, and 5 g of rapeseed oil amide propyl-dimethylamine and heat to 65 °C until each component is dissolved to obtain the first component. Mix 2 g of glutamic acid, 1 g of aspartic acid, 1 g of ferulic acid, 0.5 g of ursolic acid, 0.5 g of oleanolic acid, 1 g of glycolic acid, and 0.5 g of gluconic acid to obtain the second component. Add the second component to the first component and stir until the system becomes clear and transparent, then heat to 85 °C and keep warm for 30 min;

[0058] S2: Mix 12 g of Elaeagnus mollis seed oil, 8 g of Adansonia digitata seed oil, 5 g of Calophyllum inophyllum seed oil, 1 g of retinyl palmitate, 3 g of PPG-4-ceteth-20, 3 g of PEG-30 dipolyhydroxystearate polysorbate-80, 1 g of polysorbate-60, and 2 g of coco-caprylate to obtain a third component. Add the third component to the mixture obtained in step S1, then keep the temperature at 85°C and homogenize at 4000 rpm for 5 min;

[0059] S3: Cool the mixture obtained in step S2 to 60°C, add a fourth component composed of 5 g of 1,2-propanediol and 1 g of 1,2-hexanediol thereto, and stir evenly to obtain the vegetable oil composite liquid crystal emulsifier.

[0060] The mass ratio of the first component, the second component, the third component, and the fourth component is 75:1:10:1.

[0061] The preparation steps of the soothing cream are as follows:

[0062] Add deionized water to an emulsifying pan, start stirring, and heat to 80°C. Add the vegetable oil composite liquid crystal emulsifier to the water and stir evenly to obtain an aqueous phase. After weighing each component in the above formula according to the mass percentage, add them to the aqueous phase, heat to 80°C, stir evenly, homogenize at 4000 rpm for 5 min, and then stir and cool to 60°C. Discharge to obtain a soothing cream with a moisturizing function.

[0063] Example 2

[0064] A soothing cream with a moisturizing function and its preparation method

[0065] The soothing cream comprises the following components in mass percentage:

[0066] Hydrogenated styrene-butadiene block copolymer 5%, isopropyl myristate 4%, glycosphingolipids 3%, dipentaerythritol hexaoctanoate 4%, c12 / 13 alcohol lactate 3%, tocopherol acetate 1.5%, bisabolol 0.5%, fermentation extract 5% (composed of brewer's yeast fermentation product extract and film-coated yeast fermentation product extract in a mass ratio of 1:2), seaside mallow extract 3%, white flower acid vine fruit extract 1.5%, celery seed extract 1.5%, purple astragalus extract 1.5%, phellodendron bark extract 1.5%, plant Oil-composite liquid crystal emulsifier 5%, moisturizer 15% (consisting of glycerin, maltitol, arginine, 1,3-propylene glycol, 1,3-butylene glycol, 1,2-hexanediol, 1,2-pentanediol and dipropylene glycol in a mass ratio of 1:1:2:0.5:1:1:1:1), preservative 0.8% (consisting of caprylyl glycol, methylparaben, propylparaben, phenoxyethanol, ethylhexylglycerin, sodium benzoate, sodium levulinate and p-anisic acid in a mass ratio of 1:2:2:1:1:1:1:2), disodium EDTA 0.15%, and the rest is water.

[0067] The preparation steps of the vegetable oil composite liquid crystal emulsifier are as follows:

[0068] S1: Mix 50g of deionized water, 20g of butanediol, 15g of glycerol and 10g of rapeseed oleamidopropyl-dimethylamine and heat to 75°C until the components are dissolved to obtain the first component. Mix 5g of glutamic acid, 3g of aspartic acid, 3g of ferulic acid, 1g of ursolic acid, 1g of oleanolic acid, 1.5g of glycolic acid and 1g of gluconic acid to obtain the second component. Add the second component to the first component, stir until the system is clear and transparent, and then heat to 85°C and keep warm for 30 minutes;

[0069] S2: 15 g of Elaeagnus salsa seed oil, 12 g of Adansonia digitata seed oil, 10 g of Malus tamanu seed oil, 3 g of retinol palmitate, 6 g of PPG-4-cetoeth-20, 6 g of PEG-30 dipolyhydroxystearate polysorbate-80, 3 g of polysorbate-60 and 5 g of coconut caprylate are mixed to obtain a third component, and the third component is added to the mixture obtained in step S1, and then the mixture is kept at 85° C. and homogenized at 6000 rpm for 10 min;

[0070] S3: Cool the mixture obtained in step S2 to 60° C., add a fourth component consisting of 8 g of 1,2-propylene glycol and 2 g of 1,2-hexanediol, and stir evenly to obtain the vegetable oil composite liquid crystal emulsifier.

[0071] The mass ratio of the first component, the second component, the third component and the fourth component is 85:5:15:3.

[0072] The preparation steps of the soothing facial cream are as follows:

[0073] Add deionized water to the emulsifying pot, start stirring, and heat to 85 °C. Add the vegetable oil composite liquid crystal emulsifier to the water and stir evenly to obtain the aqueous phase. After weighing each component in the above formula according to the mass percentage, add it to the aqueous phase, heat to 85 °C, stir evenly, homogenize at a speed of 6000 rpm for 10 min, and then stir and cool down to 65 °C. Discharge the material to obtain a soothing cream with a moisturizing function.

[0074] Example 3

[0075] A soothing cream with a moisturizing function and its preparation method

[0076] The soothing cream comprises the following components in mass percentage:

[0077] Hydrogenated styrene-butadiene block copolymer 4%, isopropyl myristate 3%, glycosphingolipids 2%, dipentaerythritol hexa-caprylate 3%, c12 / 13 alcohol lactate 2%, tocopheryl acetate 1%, bisabolol 0.3%, fermentation extract 3.5% (composed of extract of saccharomyces boulardii lysate and extract of saccharomyces cerevisiae lysate in a mass ratio of 1:2), extract of kosteletzkya virginica 2%, extract of embelia ribes 1%, extract of apium graveolens seeds 1%, extract of astragalus purpureus 1%, extract of phellodendron amurense bark 1%, vegetable oil composite liquid crystal emulsifier 3%, moisturizer 12% (composed of sodium hyaluronate, glycerol, 1,3-propanediol in a mass ratio of 1:1:1), preservative 0.5% (composed of octanoyl hydroxamic acid, phenoxyethanol, ethylhexylglycerin in a mass ratio of 2:1:1), disodium EDTA 0.1%, and the balance is water.

[0078] The preparation steps of the vegetable oil composite liquid crystal emulsifier are as follows:

[0079] S1: Mix 45 g of deionized water, 15 g of butanediol, 12 g of glycerol and 8 g of rapeseed oil amide propyl-dimethylamine and heat to 70 °C until each component is dissolved to obtain the first component. Mix 3 g of glutamic acid, 2 g of aspartic acid, 2 g of ferulic acid, 0.8 g of ursolic acid, 0.8 g of oleanolic acid, 1.2 g of glycolic acid and 0.8 g of gluconic acid to obtain the second component. Add the second component to the first component and stir until the system is clear and transparent, and then heat to 85 °C and keep warm for 30 min;

[0080] S2: Mix 13 g of Elaeagnus mollis seed oil, 10 g of Adansonia digitata seed oil, 8 g of Calophyllum inophyllum seed oil, 2 g of retinyl palmitate, 5 g of PPG-4-ceteth-20, 5 g of PEG-30 dipolyhydroxystearate polysorbate-80, 2 g of polysorbate-60, and 3 g of coco-caprylate to obtain a third component. Add the third component to the mixture obtained in step S1, then keep the temperature at 85°C and homogenize at 5000 rpm for 8 min;

[0081] S3: Cool the mixture obtained in step S2 to 60°C, add a fourth component composed of 6 g of 1,2-propanediol and 1.5 g of 1,2-hexanediol thereto, and stir evenly to obtain the vegetable oil composite liquid crystal emulsifier.

[0082] The mass ratio of the first component, the second component, the third component, and the fourth component is 80:2:12:2.

[0083] The preparation steps of the soothing cream are as follows:

[0084] Add deionized water to an emulsifying pot, start stirring, and heat to 82°C. Add the vegetable oil composite liquid crystal emulsifier to the water and stir evenly to obtain an aqueous phase. After weighing each component in the above formula according to the mass percentage, add them to the aqueous phase, heat to 82°C, stir evenly, homogenize at a rotation speed of 5000 rpm for 8 min, and then stir and cool to 62°C. Discharge to obtain the soothing cream with a moisturizing function.

[0085] Comparative Example 1

[0086] The difference between this comparative example and Example 3 is that the first component does not contain rapeseed oil amide propyl-dimethylamine when preparing the vegetable oil composite liquid crystal emulsifier, and the rest are the same as in Example 3.

[0087] Comparative Example 2

[0088] The difference between this comparative example and Example 3 is that the second component and the third component of the vegetable oil composite liquid crystal emulsifier are directly used to replace the vegetable oil composite liquid crystal emulsifier, and the rest are the same as in Example 3.

[0089] Test Example 1

[0090] Evaluation of cream stability

[0091] Store the creams prepared in Examples 1-3 and Comparative Examples 1-2 of the present invention in a constant temperature incubator at room temperature (25°C), 4°C, 40°C, and -10°C, and observe the stability of the creams. The results are shown in the following table.

[0092] Table 1

[0093]

[0094] As can be seen from Table 1, at room temperature, the creams of Examples 1-3 and Comparative Examples 1-2 can all maintain a stable state within 28 days. This indicates that at normal ambient temperatures, the formula of the cream has a certain stability in the short term, and the interaction between the components can maintain the physical state of the product.

[0095] Under the conditions of 4°C and 40°C, the creams of Examples 1-3 remained stable within 28 days, while the creams of Comparative Example 1 and Comparative Example 2 showed layering after 14 days or 28 days. This shows that rapeseed oil amide propyl-dimethylamine plays a key role in the preparation of the vegetable oil composite liquid crystal emulsifier. The emulsification system constructed by it can effectively enhance the stability of the cream in different temperature environments, ensure that the product maintains a uniform texture during storage and use, avoid phase separation, and thus guarantee the quality and use effect of the product.

[0096] Under the condition of -10°C, the creams of Examples 1-3 remained stable within 28 days, while the creams of Comparative Example 1 and Comparative Example 2 showed layering after 28 days. This further confirms that the unique formula of the vegetable oil composite liquid crystal emulsifier in the present invention can endow the cream with better cold resistance stability, enabling it to maintain good performance in low temperature environments, expanding the scope of application and storage conditions of the product.

[0097] Test Example 2

[0098] Evaluation of the moisturizing property of the cream

[0099] Eighty volunteers, half male and half female, were selected to use the creams prepared in Examples 1-3 and Comparative Examples 1-2 of the present invention. When using for 0 h, 1 h, 3 h and 6 h, the water content of the facial skin was measured. The results are shown in Figure 1 .

[0100] According to Figure 1 As can be seen, for the creams of Examples 1-3, the water content of the facial skin was higher than that of Comparative Examples 1-2 at 0 h, 1 h, 3 h and 6 h after use. This shows that the cream of the present invention, through the vegetable oil composite liquid crystal emulsifier prepared with rapeseed oil amide propyl-dimethylamine, can enable the moisturizing agents and other components with moisturizing effects in the cream to play better roles, form an effective moisturizing barrier, prevent the loss of skin moisture, and thus maintain the water content of the skin for a long time and keep the skin in a moist state. In contrast, due to the difference in the emulsification system, the moisturizing effects of the creams of Comparative Example 1 and Comparative Example 2 are significantly inferior to those of the examples, indicating that the emulsifier and cream formula of the present invention have significant advantages in terms of moisturizing performance.

[0101] Test Example 3

[0102] Evaluation of the soothing property of the cream

[0103] The soothing property of the face cream was evaluated according to T / ZHCA016-2022 "Method for Evaluating the Soothing Efficacy of Cosmetics - Neutrophil Inhibition Rate Method for Zebrafish Larvae", and the results are shown in Figure 2 .

[0104] It can be seen from Figure 2 that the face creams of Examples 1-3 show a trend of being superior to those of Comparative Examples 1-2 in terms of soothing performance. Because the face cream of the present invention contains a variety of ingredients with soothing effects, and the vegetable oil composite liquid crystal emulsifier can better protect and stabilize the activity of these functional ingredients, enabling them to more effectively play the role of soothing skin inflammation and reducing skin discomfort. In the zebrafish larvae experimental model, the face cream of the example can more significantly inhibit the activity of neutrophils, thereby reducing the inflammatory response, indicating that it has a better effect in soothing the skin, can provide a more gentle and comfortable skin care experience for consumers, and is particularly important for people with sensitive skin.

[0105] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0106] The above describes the present invention and its embodiments, and this description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual application is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar ways and embodiments to this technical solution without creative efforts without departing from the purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A soothing cream with moisturizing function, characterized in that: Comprising components in the following mass percentages: 3%-5% of hydrogenated styrene-butadiene block copolymer, 2%-4% of isopropyl myristate, 1%-3% of glycosphingolipids, 2%-4% of dipentaerythritol hexa-caprylate, 1%-3% of c12 / 13 alcohol lactate, 0.5%-1.5% of tocopheryl acetate, 0.1%-0.5% of bisabolol, 2%-5% of fermentation extract, 1%-3% of Kosteletzkya virginica extract, 0.5%-1.5% of Embelia ribes extract, 0.5%-1.5% of Apium graveolens seed extract, 0.5%-1.5% of Astragalus purdomii extract, 0.5%-1.5% of Phellodendron amurense bark extract, 2-5% of vegetable oil composite liquid crystal emulsifier, 8%-15% of humectant, 0.3%-0.8% of preservative, 0.05%-0.15% of disodium EDTA, and the balance being water; The vegetable oil composite liquid crystal emulsifier is prepared by the following steps: S1. Mix deionized water, butylene glycol, glycerol, and rapeseed oil amide propyl-dimethylamine and heat to 65-75°C until each component is dissolved to obtain a first component. Then mix glutamic acid, aspartic acid, ferulic acid, ursolic acid, oleanolic acid, glycolic acid, and gluconic acid to obtain a second component. Add the second component to the first component and stir until the system becomes clear and transparent, and then heat to 85°C and hold for 30 min; S2. Mix Elaeagnus mollis seed oil, Adansonia digitata seed oil, Calophyllum inophyllum seed oil, retinol palmitate, PPG-4-ceteth-20, PEG-30 dipolyhydroxystearate polysorbate-80, polysorbate-60, and coco-caprylate to obtain a third component. Add the third component to the mixture obtained in step S1, then hold at 85°C and homogenize at 4000-6000 rpm for 5-10 min; S3. Cool the mixture obtained in step S2 to 60°C, add a fourth component composed of 1,2-propylene glycol and 1,2-hexanediol, and stir evenly to obtain the vegetable oil composite liquid crystal emulsifier.

2. The soothing cream with a moisturizing function according to claim 1, characterized in that: In the first component, the mass ratio of deionized water, butylene glycol, glycerol, and rapeseed oil amide propyl-dimethylamine is 40-50:10-20:10-15:5-10.

3. The soothing cream with moisturizing function according to claim 2, characterized in that: In the second component, the mass ratio of glutamic acid, aspartic acid, ferulic acid, ursolic acid, oleanolic acid, glycolic acid, and gluconic acid is 2-5:1-3:1-3:0.5-1:0.5-1:1-1.5:0.5-1.

4. The soothing cream with moisturizing function according to claim 3, characterized in that: In the third component, the mass ratio of Elaeagnus mollis seed oil, Adansonia digitata seed oil, Calophyllum inophyllum seed oil, retinol palmitate, PPG-4-ceteth-20, PEG-30 dipolyhydroxystearate polysorbate-80, polysorbate-60, and coco-caprylate is 12-15:8-12:5-10:1-3:3-6:3-6:1-3:2-5.

5. The soothing cream with a moisturizing function according to claim 4, characterized in that: The fourth component comprises components in the following weight parts: 1,2-propylene glycol and 1,2-hexanediol are 5-8:1-2.

6. The soothing cream with a moisturizing function according to claim 5, characterized in that: The mass ratio of the first component, the second component, the third component, and the fourth component is 75-85:1-5:10-15:1-3.

7. The soothing cream with moisturizing function according to claim 6, characterized in that: The moisturizer is selected from one or a combination of more than one of sodium hyaluronate, glycerol, maltitol, arginine, 1,3-propanediol, 1,3-butanediol, 1,2-hexanediol, 1,2-pentanediol, and dipropylene glycol.

8. The soothing cream with a moisturizing function according to claim 7, characterized in that: The preservative is selected from one or a combination of more than one of octanoyl hydroxamic acid, caprylyl glycol, methylparaben, propylparaben, phenoxyethanol, ethylhexylglycerin, sodium benzoate, sodium acetylpropionate, and p-anisic acid.

9. The soothing cream with a moisturizing function according to claim 8, characterized in that: The fermentation extract is one or a combination of more than one of bifida ferment lysate, saccharomyces cerevisiae ferment extract, and saccharomyces capsulatus ferment extract.

10. A method for preparing a soothing cream with a moisturizing function according to any one of claims 1-9, characterized in that: It includes the following steps: Add deionized water to an emulsifying pot, start stirring, heat to 80 - 85 °C, add vegetable oil composite liquid crystal emulsifier to the water, stir evenly to obtain an aqueous phase. Weigh hydrogenated styrene-butadiene block copolymer, isopropyl myristate, glycosphingolipids, dipentaerythritol hexa-caprylate / caprate, c12 / 13 alkyl lactate, tocopheryl acetate, bisabolol, fermentation extract, kosteletzkya virginica extract, embelia ribes extract, apium graveolens seed extract, astragalus purpureus extract, phellodendron amurense bark extract, moisturizer, preservative, and disodium EDTA according to the mass percentage, add them to the aqueous phase, heat to 80 - 85 °C, stir evenly, homogenize at a rotation speed of 4000 - 6000 rpm for 5 - 10 min, and then stir and cool down to 60 - 65 °C; discharge to obtain a soothing cream with a moisturizing function.

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