Moisturizing composition, preparation method thereof and moisturizing lotion

Abstract

The invention relates to the technical field of cosmetics, in particular to a moisturizing composition, a preparation method thereof and moisturizing lotion. The moisturizing composition is prepared from the following raw materials in parts by weight: 1 to 20 parts of glycosylglycerol solution, 1 to 20 parts of multi-hyaluronic acid, 0.1 to 1 part of sodium hyaluronate, 0.1 to 3 parts of herba centellae extract, 1 to 10 parts of glyceryl polyether and 66 to 97.8 parts of solvent. According to the moisturizing composition, all the raw materials synergistically exert effects, so that the moisturizing effect of the moisturizing composition is lasting, the moisturizing state of the skin can be kept for a long time, and the moisturizing composition is mild and non-irritant to the skin and is safe to use. The preparation method of the moisturizing composition is simple in process, high in production efficiency and beneficial to industrial production. The moisturizing composition is added into the moisturizing lotion, so that the moisturizing lotion has a more remarkable moisturizing effect, the loss amount of skin moisture can be effectively reduced, the skin is kept in a moisturized and full-elastic state, and the moisturizing lotion is safe to use.

Description

Technical Field

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

[0002] With the progress of society and the improvement of living standards, people pay more and more attention to skin care. In the cosmetics and skin care product market, moisturizing products have always attracted the attention of consumers. However, many existing moisturizing products have problems such as unsustainable moisturizing effect, questionable ingredient safety or poor compatibility with other cosmetic ingredients, and the skin care effect is not ideal. In order to meet consumers' demand for efficient, safe and long-lasting moisturizing, it is of great significance to develop a new moisturizing composition. Summary of the invention

[0003] In order to overcome the shortcomings and deficiencies in the prior art, the present invention aims to provide a moisturizing composition and a preparation method thereof, wherein the moisturizing composition is compounded with multiple hyaluronic acids, glycerol glucoside, sodium hyaluronate, Centella asiatica extract and glycerol polyether and other raw materials, and each raw material synergistically exerts its efficacy, so that the moisturizing composition has a long-lasting moisturizing effect, can maintain the moisturized state of the skin for a long time, is mild and non-irritating to the skin, and is safe to use. The preparation method of the moisturizing composition has a simple process, high production efficiency, and is conducive to industrial production.

[0004] Another object of the present invention is to provide a moisturizing lotion, which has a more significant moisturizing effect by adding the above-mentioned moisturizing composition, can effectively reduce the loss of skin moisture, keep the skin hydrated and elastic, and is safe to use.

[0005] The objective of the present invention is achieved through the following technical scheme: a moisturizing composition comprising the following raw materials in parts by weight: 1-20 parts of glycerol glucoside solution, 1-20 parts of multiple hyaluronic acid, 0.1-1 parts of sodium hyaluronate, 0.1-3 parts of Centella asiatica extract, 1-10 parts of glycerol polyether, and 66-97.8 parts of solvent.

[0006] Each portion of glycerol glucoside solution comprises the following raw materials in parts by weight: 45-55 parts of glycerol glucoside, 3-7 parts of 1,2-pentanediol, and 40-50 parts of water.

[0007] Each portion of multiple hyaluronic acid includes the following raw materials in parts by weight: 2-3 parts of sodium hyaluronate cross-linked polymer, 2-3 parts of sodium hyaluronate, 0.2-0.4 parts of hydrolyzed sodium hyaluronate, 0.03-0.07 parts of hyaluronic acid, 0.03-0.07 parts of hydrolyzed hyaluronic acid, 0.1-0.3 parts of acetylated sodium hyaluronate, 0.03-0.07 parts of hydroxypropyltrimethylammonium chloride hyaluronic acid, 0.05-0.15 parts of hydrolyzed glycosaminoglycan, 0.2-0.4 parts of 1,2-hexanediol, 0.4-0.9 parts of 1,3-propylene glycol, 0.03-0.07 parts of caprylhydroxamic acid, and 90-95 parts of water.

[0008] The preparation method of the multiple hyaluronic acid comprises the following steps: (A1) adding water to a container, stirring and adding sodium hyaluronate cross-linked polymer, sodium hyaluronate, hydrolyzed sodium hyaluronate, hyaluronic acid, hydrolyzed hyaluronic acid, acetylated sodium hyaluronate, hydroxypropyltrimethylammonium chloride hyaluronic acid, and hydrolyzed glycosaminoglycan, stirring evenly, raising the temperature to 75-80° C., and stirring at a constant temperature until completely dissolved to obtain a mixture A1; (A2) cooling the mixture A1 to 40-45° C., adding 1,2-hexanediol, 1,3-propylene glycol and octanoylhydroxamic acid, and stirring until the mixture becomes transparent and free of impurities, to obtain a mixture A2; (A3) Cooling the mixture A2 to 35-38° C. and then filtering the mixture to obtain a multiple hyaluronic acid complex.

[0009] The solvent is at least one of ionized water and alcohol solvents; the alcohol solvent is at least one of 1,3-propylene glycol, butylene glycol, dipropylene glycol, 1,2-hexanediol and glycerol.

[0010] Each part of the solvent comprises the following raw materials in parts by weight: 35-89.2 parts of water, 5-10 parts of butanediol, and 0.5-1 part of 1,2-hexanediol. The glycerol polyether is glycerol polyether-26.

[0011] The various components in the moisturizing composition of the present invention work together to exert their effects, respectively, on the skin keratinocytes, epidermis, epidermal junction layer and dermis. Among them, glycerol glucoside can promote the synthesis of aquaporin, reduce the loss of skin moisture, and increase the water content of the skin. The sodium hyaluronate cross-linked polymer has a high molecular weight, and it can form a tight moisturizing film on the surface of the skin to prevent the evaporation of water, just like building a "water storage hut" on the surface of the skin to lock the moisture firmly. Sodium hyaluronate can absorb hundreds of times its own weight of water, can penetrate into the epidermis of the skin, and increase the moisture content of the skin. The hydrolyzed sodium hyaluronate has a smaller molecular weight and can penetrate into the deeper layers of the skin, such as the dermis, replenishing moisture for the skin from the inside to achieve the effect of deep moisturizing. Hyaluronic acid and hydrolyzed hyaluronic acid further strengthen the entire moisturizing system, and they can fill in the gaps between skin cells to make the skin fuller. Acetylated sodium hyaluronate not only moisturizes, but also enhances the barrier function of the skin and improves problems such as dry and rough skin. Hydroxypropyltrimethylammonium chloride hyaluronic acid carries a positive charge and can better combine with negatively charged proteins and other ingredients on the skin surface, allowing the moisturizing ingredients to adhere to the skin more permanently. Hydrolyzed glycosaminoglycans also help enhance the skin's water retention capacity and maintain the skin's water-oil balance. Centella asiatica extract can improve the skin's barrier function, prevent water loss, have anti-inflammatory properties, and can relieve discomfort caused by dry skin. For some sensitive problems caused by dry skin, it reduces inflammatory reactions, soothes the skin while moisturizing, and avoids redness, swelling, itching, and the like caused by dryness. The glycerol polyether uses glycerol polyether-26, which is an excellent moisturizer that can quickly replenish moisture for the skin and form a lubricating protective film on the skin surface. This film can reduce the loss of water on the skin surface, while making the skin feel soft and smooth. Its moisturizing effect is long-lasting and can keep the skin moist for a long time. The moisturizing composition of the present invention can be applied to skin care products to make them have more significant moisturizing effects. Long-term use of skin care products containing the present invention can reduce the loss of skin moisture, optimize signal transmission and material transmission between the dermis and the epidermis, and keep the skin hydrated and elastic.

[0012] The present invention also provides a method for preparing a moisturizing composition, comprising the following steps: (1) Pour water into a container and stir, then add the pre-mixed butylene glycol and sodium hyaluronate, raise the temperature to 75-85° C., and stir at a constant temperature until completely dissolved to obtain a mixture 1; (2) Cooling the mixture 1 to 50-55° C., adding 1,2-hexanediol, and stirring until uniform to obtain a mixture 2; (3) Cooling the mixture 1 to 40-45° C., then adding glyceryl glucoside, multiple hyaluronic acid, Centella asiatica extract and glycerol polyether, and stirring for 10-15 minutes until the mixture becomes transparent and free of impurities, to obtain a mixture 3; (4) Cooling the mixture to 35-38° C. and filtering the mixture to obtain a moisturizing composition.

[0013] The present invention also provides a moisturizing lotion comprising the moisturizing composition.

[0014] Furthermore, the moisturizing lotion comprises the following raw materials in parts by weight: 4-6 parts of a moisturizing composition, 1-3 parts of glycerin, 0.05-0.15 parts of xanthan gum, 0.05-0.15 parts of carbomer, 0.8-1.2 parts of cetearyl alcohol, 1-1.4 parts of cetearyl glucoside, 1.5-2.5 parts of polydimethylsiloxane, 1.5-2.5 parts of isononyl isononanoate, 0.05-0.15 parts of arginine, 2-4 parts of butylene glycol, 0.4-0.6 parts of 1,2-hexanediol, 0.4-0.6 parts of p-hydroxyacetophenone, and 75-90 parts of water.

[0015] The present invention also provides a method for preparing the moisturizing lotion, comprising the following steps: (B1) adding a portion of water to a container, and then adding the pre-mixed mixture of glycerin, xanthan gum, and carbomer, stirring, and then heating to 80-85° C. to evenly disperse the raw materials to obtain phase A; (B2) mixing cetearyl alcohol, cetearyl glucose, dimethicone and isononyl isononanoate and stirring, and heating to 75-85° C. to evenly disperse the raw materials to obtain phase B; (B3) Add phase B into phase A and homogenize, then stir at 80-85°C; (B4) cooling the mixture obtained in step (B3) to 60-65° C., stirring, adding the pre-treated phase C, and stirring until uniformly dispersed; the phase C is formed by mixing arginine and water; (B5) cooling the mixture obtained in step (B4) to 55-60° C., adding the pre-treated phase D, and stirring until the mixture is uniformly dispersed; the phase D is formed by mixing butanediol, 1,2-hexanediol, and p-hydroxyacetophenone; (B6) stirring the mixture obtained in step (B5) and cooling it to 40-45°C, adding the moisturizing composition, stirring and cooling it to room temperature; then sampling and testing, and filtering and discharging the material after the test is qualified.

[0016] The beneficial effects of the present invention are as follows: the moisturizing composition of the present invention is compounded with multiple hyaluronic acids, glycerol glucoside, sodium hyaluronate, Centella asiatica extract and glycerol polyether and other raw materials, each raw material is well matched and synergistically exerts its efficacy, the moisturizing composition has a long-lasting moisturizing effect, can keep the skin moist for a long time, is mild and non-irritating to the skin, and is safe to use. The preparation method of the moisturizing composition is simple in process, high in production efficiency, and is conducive to industrial production. The moisturizing composition of the present invention can be applied to skin care products such as moisturizing lotion, which can make the moisturizing lotion have a more significant moisturizing effect. Long-term use of the skin care products containing the present invention can effectively reduce the loss of skin moisture, keep the skin moist and elastic, and is safe to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a curve chart of the moisture change rate of the moisturizing lotion prepared in Examples 1-4 of the present invention and Comparative Examples 1-4. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0019] In some embodiments of the present invention, a moisturizing composition comprises the following raw materials in parts by weight: 1-20 parts of glycerol glucoside solution, 1-20 parts of multiple hyaluronic acid, 0.1-1 parts of sodium hyaluronate, 0.2-3 parts of Centella asiatica extract, 1-10 parts of glycerol polyether, and 66-97.8 parts of solvent. The above-mentioned composition with moisturizing effect of the present invention can be applied to various skin care products, including creams, lotions, masks or essences, and the percentage content in the skin care products is 1-10%.

[0020] In some embodiments of the present invention, each portion of glycerol glucoside solution comprises the following raw materials in parts by weight: 45-55 parts of glycerol glucoside, 3-7 parts of 1,2-pentanediol, and 40-50 parts of water.

[0021] In some embodiments of the present invention, each portion of multiple hyaluronic acid comprises the following raw materials in parts by weight: 2-3 parts of sodium hyaluronate cross-linked polymer, 2-3 parts of sodium hyaluronate, 0.2-0.4 parts of hydrolyzed sodium hyaluronate, 0.03-0.07 parts of hyaluronic acid, 0.03-0.07 parts of hydrolyzed hyaluronic acid, 0.1-0.3 parts of acetylated sodium hyaluronate, 0.03-0.07 parts of hydroxypropyltrimethylammonium chloride hyaluronic acid, 0.05-0.15 parts of hydrolyzed glycosaminoglycan, 0.2-0.4 parts of 1,2-hexanediol, 0.4-0.9 parts of 1,3-propylene glycol, 0.03-0.07 parts of caprylhydroxamic acid, and 90-95 parts of water.

[0022] In some embodiments of the present invention, the method for preparing the multiple hyaluronic acid comprises the following steps: (A1) adding water to a container, stirring and adding sodium hyaluronate cross-linked polymer, sodium hyaluronate, hydrolyzed sodium hyaluronate, hyaluronic acid, hydrolyzed hyaluronic acid, acetylated sodium hyaluronate, hydroxypropyltrimethylammonium chloride hyaluronic acid, and hydrolyzed glycosaminoglycan, stirring evenly, raising the temperature to 75-80° C., and stirring at a constant temperature until completely dissolved to obtain a mixture A1; (A2) cooling the mixture A1 to 40-45° C., adding 1,2-hexanediol, 1,3-propylene glycol and octanoylhydroxamic acid, and stirring until the mixture becomes transparent and free of impurities, to obtain a mixture A2; (A3) Cooling the mixture A2 to 35-38° C. and then filtering the mixture to obtain a multiple hyaluronic acid complex.

[0023] In some embodiments of the present invention, the solvent is at least one of ionized water and an alcohol solvent.

[0024] In some embodiments of the present invention, the alcohol solvent is at least one of 1,3-propylene glycol, butylene glycol, dipropylene glycol, 1,2-hexanediol and glycerol.

[0025] In some embodiments of the present invention, each part of the solvent comprises the following raw materials in parts by weight: 35-89.2 parts of water, 5-10 parts of butanediol, and 0.5-1 part of 1,2-hexanediol.

[0026] In some embodiments of the present invention, a method for preparing a moisturizing composition comprises the following steps: (1) Pour water into a container and stir, then add the pre-mixed butylene glycol and sodium hyaluronate, raise the temperature to 75-85° C., and stir at a constant temperature until completely dissolved to obtain a mixture 1; (2) Cooling the mixture 1 to 50-55° C., adding 1,2-hexanediol, and stirring until uniform to obtain a mixture 2; (3) Cooling the mixture 1 to 40-45° C., then adding glyceryl glucoside, multiple hyaluronic acid, Centella asiatica extract and glycerol polyether, and stirring for 10-15 minutes until the mixture becomes transparent and free of impurities, to obtain a mixture 3; (4) Cooling the mixture to 35-38° C. and filtering the mixture to obtain a moisturizing composition.

[0027] In some embodiments of the present invention, a moisturizing lotion comprises the following raw materials in parts by weight: 4-6 parts of a moisturizing composition, 1-3 parts of glycerin, 0.05-0.15 parts of xanthan gum, 0.05-0.15 parts of carbomer, 0.8-1.2 parts of cetearyl alcohol, 1-1.4 parts of cetearyl glucoside, 1.5-2.5 parts of polydimethylsiloxane, 1.5-2.5 parts of isononyl isononanoate, 0.05-0.15 parts of arginine, 2-4 parts of butylene glycol, 0.4-0.6 parts of 1,2-hexanediol, 0.4-0.6 parts of p-hydroxyacetophenone, and 75-90 parts of water.

[0028] In some embodiments of the present invention, a method for preparing a moisturizing lotion comprises the following steps: (B1) adding a portion of water to a container, and then adding the pre-mixed mixture of glycerin, xanthan gum, and carbomer, stirring, and then heating to 80-85° C. to evenly disperse the raw materials to obtain phase A; (B2) mixing cetearyl alcohol, cetearyl glucose, dimethicone and isononyl isononanoate and stirring, and heating to 75-85° C. to evenly disperse the raw materials to obtain phase B; (B3) Add phase B into phase A and homogenize, then stir at 80-85°C; (B4) cooling the mixture obtained in step (B3) to 60-65° C., stirring, adding the pre-treated phase C, and stirring until uniformly dispersed; the phase C is formed by mixing arginine and water; (B5) cooling the mixture obtained in step (B4) to 55-60° C., adding the pre-treated phase D, and stirring until the mixture is uniformly dispersed; the phase D is formed by mixing butanediol, 1,2-hexanediol, and p-hydroxyacetophenone; (B6) stirring the mixture obtained in step (B5) and cooling it to 40-45°C, adding the moisturizing composition, stirring and cooling it to room temperature; then sampling and testing, and filtering and discharging the material after the test is qualified.

[0029] In some embodiments of the present invention, the mass ratio of water in phase A to water in phase C is 75-85:1-3.

[0030] Example 1 In this embodiment, a moisturizing composition includes the following raw materials in parts by weight: 1 part of glycerol glucoside solution, 1 part of multiple hyaluronic acid, 0.1 part of sodium hyaluronate, 0.2 parts of Centella asiatica extract, 1 part of glycerol polyether, and 96.7 parts of solvent.

[0031] Each part of glycerol glucoside solution includes the following raw materials in parts by weight: 50 parts of glycerol glucoside, 5 parts of 1,2-pentanediol, and 45 parts of water.

[0032] Each portion of multiple hyaluronic acid includes the following raw materials in parts by weight: 2.5 parts of sodium hyaluronate cross-linked polymer, 2.5 parts of sodium hyaluronate, 0.3 parts of hydrolyzed sodium hyaluronate, 0.05 parts of hyaluronic acid, 0.05 parts of hydrolyzed hyaluronic acid, 0.2 parts of acetylated sodium hyaluronate, 0.05 parts of hydroxypropyltrimethylammonium chloride hyaluronic acid, 0.1 parts of hydrolyzed glycosaminoglycan, 0.3 parts of 1,2-hexanediol, 0.65 parts of 1,3-propylene glycol, 0.05 parts of caprylhydroxamic acid, and 93.25 parts of water. The water used in this embodiment is deionized water, and the multiple hyaluronic acid is seven-fold hyaluronic acid.

[0033] The preparation method of the multiple hyaluronic acid comprises the following steps: (A1) Add water to a clean and disinfected emulsifying pot, start stirring at a speed of 20 rpm, then add sodium hyaluronate cross-linked polymer, sodium hyaluronate, hydrolyzed sodium hyaluronate, hyaluronic acid, hydrolyzed hyaluronic acid, acetylated sodium hyaluronate, hydroxypropyltrimethylammonium chloride hyaluronic acid, and hydrolyzed glycosaminoglycan in sequence, stir evenly, heat to 78° C., and stir at a constant temperature for 15 min until completely dissolved and transparent without fine particles, to obtain a mixture A1; (A2) Cooling the mixture A1 to 42° C., adding 1,2-hexanediol, 1,3-propylene glycol and octanoylhydroxamic acid, and stirring for 15 minutes until the mixture becomes transparent and free of impurities, to obtain a mixture A2; (A3) Cooling the mixture A2 to 37° C. and then filtering the mixture to obtain a multiple hyaluronic acid complex.

[0034] Each part of the solvent includes the following raw materials in parts by weight: 91.2 parts of water, 5 parts of butanediol, and 0.5 parts of 1,2-hexanediol.

[0035] In this embodiment, a method for preparing a moisturizing composition comprises the following steps: (1) Pour deionized water into a clean and disinfected emulsifying pot, turn on the stirring at a speed of 20 rpm, then add the pre-mixed butylene glycol and sodium hyaluronate, raise the temperature to 80°C, and stir at a constant temperature for 15 minutes until the mixture is completely dissolved and transparent without fine particles, to obtain a mixture 1; (2) Cooling the mixture 1 to 52° C., adding 1,2-hexanediol, and stirring until uniform to obtain a mixture 2; (3) Cooling the mixture 1 to 42° C., then sequentially adding glyceryl glucoside, multiple hyaluronic acid, Centella asiatica extract and glyceryl polyether-26, and stirring for 15 minutes until the mixture becomes transparent and free of impurities, to obtain a mixture 3; (4) Cooling the mixture to 37° C., filtering the mixture through a 200-mesh filter to obtain a moisturizing composition.

[0036] The present embodiment also provides a moisturizing lotion, which comprises the following raw materials in parts by weight: 5 parts of the moisturizing composition prepared in the present embodiment, 2 parts of glycerin, 0.1 parts of xanthan gum, 0.1 parts of carbomer, 1 part of cetearyl alcohol, 1.2 parts of cetearyl glucoside, 2 parts of polydimethylsiloxane, 2 parts of isononyl isononanoate, 0.1 parts of arginine, 3 parts of butylene glycol, 0.5 parts of 1,2-hexanediol, 0.5 parts of p-hydroxyacetophenone, and 80.5 parts of water.

[0037] In this embodiment, the preparation method of the moisturizing lotion comprises the following steps: (B1) Add part of the water to the sterilized emulsifying pot, then add the pre-mixed mixture of glycerin, xanthan gum and carbomer, stir at 20 rpm, stir for 20 minutes until fully dispersed, then heat to 82°C, keep constant temperature for 20 minutes until fully dissolved and evenly dispersed, and set aside; obtain phase A; (B2) mixing cetearyl alcohol, cetearyl glucose, dimethicone and isononyl isononanoate and stirring, and heating to 75° C. to evenly disperse the raw materials to obtain phase B; (B3) Add phase B to phase A, homogenize at 2800 rpm for 4 min, and then stir at 80 °C for 15 min; (B4) stirring the mixture obtained in step (B3) and cooling it to 60° C. at a stirring speed of 20 rpm, adding the pre-treated phase C, stirring until it is evenly dispersed, and stirring for 5 minutes; the phase C is formed by mixing arginine and water; the mass ratio of water in the phase A to water in the phase C is 78.5:2; (B5) cooling the mixture obtained in step (B4) to 55°C, adding the pre-treated phase D, and stirring until uniformly dispersed; the phase D is prepared by mixing butanediol, 1,2-hexanediol, and p-hydroxyacetophenone and heating to 60°C to form a transparent solution free of foreign matter; (B6) stirring the mixture obtained in step (B5) and cooling it to 40°C, adding phase E, which is a moisturizing composition, stirring and cooling it to room temperature; then sampling and testing, and filtering and discharging the material after the test is qualified.

[0038] Example 2 In this embodiment, a moisturizing composition includes the following raw materials in parts by weight: 3 parts of glycerol glucoside solution, 5 parts of multiple hyaluronic acid, 0.3 parts of sodium hyaluronate, 0.2 parts of Centella asiatica extract, 2 parts of glycerol polyether, and 89.5 parts of solvent.

[0039] Furthermore, each portion of the solvent includes the following raw materials in parts by weight: 84 parts of water, 5 parts of butanediol, and 0.5 parts of 1,2-hexanediol.

[0040] The present embodiment also provides a moisturizing lotion, which comprises the following raw materials in parts by weight: 5 parts of the moisturizing composition prepared in the present embodiment, 2 parts of glycerin, 0.1 parts of xanthan gum, 0.1 parts of carbomer, 1 part of cetearyl alcohol, 1.2 parts of cetearyl glucoside, 2 parts of polydimethylsiloxane, 2 parts of isononyl isononanoate, 0.1 parts of arginine, 3 parts of butylene glycol, 0.5 parts of 1,2-hexanediol, 0.5 parts of p-hydroxyacetophenone, and 80.5 parts of water.

[0041] The rest of the content of this embodiment is the same as that of Embodiment 1 and will not be repeated here.

[0042] Example 3 In this embodiment, a moisturizing composition includes the following raw materials in parts by weight: 5 parts of glycerol glucoside solution, 2 parts of multiple hyaluronic acid, 0.2 parts of sodium hyaluronate, 0.2 parts of Centella asiatica extract, 3 parts of glycerol polyether, and 89.6 parts of solvent.

[0043] Furthermore, each portion of the solvent includes the following raw materials in parts by weight: 84.1 parts of water, 5 parts of butanediol, and 0.5 parts of 1,2-hexanediol.

[0044] The present embodiment also provides a moisturizing lotion, which comprises the following raw materials in parts by weight: 5 parts of the moisturizing composition prepared in the present embodiment, 2 parts of glycerin, 0.1 parts of xanthan gum, 0.1 parts of carbomer, 1 part of cetearyl alcohol, 1.2 parts of cetearyl glucoside, 2 parts of polydimethylsiloxane, 2 parts of isononyl isononanoate, 0.1 parts of arginine, 3 parts of butylene glycol, 0.5 parts of 1,2-hexanediol, 0.5 parts of p-hydroxyacetophenone, and 80.5 parts of water.

[0045] The rest of the content of this embodiment is the same as that of Embodiment 1 and will not be repeated here.

[0046] Example 4 In this embodiment, a moisturizing composition includes the following raw materials in parts by weight: 2 parts of glycerol glucoside solution, 3 parts of multiple hyaluronic acid, 0.2 parts of sodium hyaluronate, 0.2 parts of Centella asiatica extract, 5 parts of glycerol polyether, and 89.6 parts of solvent.

[0047] Furthermore, each portion of the solvent includes the following raw materials in parts by weight: 84.1 parts of water, 5 parts of butanediol, and 0.5 parts of 1,2-hexanediol.

[0048] The present embodiment also provides a moisturizing lotion, which comprises the following raw materials in parts by weight: 5 parts of the moisturizing composition prepared in the present embodiment, 2 parts of glycerin, 0.1 parts of xanthan gum, 0.1 parts of carbomer, 1 part of cetearyl alcohol, 1.2 parts of cetearyl glucoside, 2 parts of polydimethylsiloxane, 2 parts of isononyl isononanoate, 0.1 parts of arginine, 3 parts of butylene glycol, 0.5 parts of 1,2-hexanediol, 0.5 parts of p-hydroxyacetophenone, and 80.5 parts of water.

[0049] The rest of the content of this embodiment is the same as that of Embodiment 1 and will not be repeated here.

[0050] In the present invention, the mass percentage of each raw material in the moisturizing composition prepared in Examples 1-4 is shown in Table 1 below: Table 1 The dosage ratio of each raw material in the moisturizing composition of Examples 1-4

[0051] Comparative Example 1 The difference between this comparative example and Example 2 is that in this comparative example, a moisturizing composition comprises the following raw materials in parts by weight: 8 parts of glycerol glucoside solution, 0.4 parts of sodium hyaluronate, 5 parts of glycerol polyether, and 86.6 parts of solvent.

[0052] Furthermore, each portion of the solvent includes the following raw materials in parts by weight: 81.1 parts of water, 5 parts of butanediol, and 0.5 parts of 1,2-hexanediol.

[0053] This comparative example also provides a moisturizing lotion, which comprises the following raw materials in parts by weight: 5 parts of the moisturizing composition prepared in this comparative example, 2 parts of glycerin, 0.1 parts of xanthan gum, 0.1 parts of carbomer, 1 part of cetearyl alcohol, 1.2 parts of cetearyl glucoside, 2 parts of polydimethylsiloxane, 2 parts of isononyl isononanoate, 0.1 parts of arginine, 3 parts of butylene glycol, 0.5 parts of 1,2-hexanediol, 0.5 parts of p-hydroxyacetophenone, and 80.5 parts of water.

[0054] Comparative Example 2 The difference between this comparative example and Example 2 is that in this comparative example, a moisturizing composition comprises the following raw materials in parts by weight: 8 parts of multiple hyaluronic acid, 0.5 parts of sodium hyaluronate, and 91.5 parts of solvent.

[0055] Furthermore, each portion of the solvent comprises the following raw materials in parts by weight: 86 parts of water, 5 parts of butanediol, and 0.5 parts of 1,2-hexanediol.

[0056] This comparative example also provides a moisturizing lotion, which comprises the following raw materials in parts by weight: 5 parts of the moisturizing composition prepared in this comparative example, 2 parts of glycerin, 0.1 parts of xanthan gum, 0.1 parts of carbomer, 1 part of cetearyl alcohol, 1.2 parts of cetearyl glucoside, 2 parts of polydimethylsiloxane, 2 parts of isononyl isononanoate, 0.1 parts of arginine, 3 parts of butylene glycol, 0.5 parts of 1,2-hexanediol, 0.5 parts of p-hydroxyacetophenone, and 80.5 parts of water.

[0057] Comparative Example 3 The difference between this comparative example and Example 2 is that in this comparative example, a moisturizing composition comprises the following raw materials in parts by weight: 6 parts of glycerol glucoside solution, 0.6 parts of sodium hyaluronate, 0.2 parts of Centella asiatica extract, 5 parts of glycerol polyether, and 88.2 parts of solvent.

[0058] Furthermore, each portion of the solvent includes the following raw materials in parts by weight: 82.7 parts of water, 5 parts of butanediol, and 0.5 parts of 1,2-hexanediol.

[0059] The present embodiment also provides a moisturizing lotion, which comprises the following raw materials in parts by weight: 5 parts of the moisturizing composition prepared in this comparative example, 2 parts of glycerin, 0.1 parts of xanthan gum, 0.1 parts of carbomer, 1 part of cetearyl alcohol, 1.2 parts of cetearyl glucoside, 2 parts of polydimethylsiloxane, 2 parts of isononyl isononanoate, 0.1 parts of arginine, 3 parts of butylene glycol, 0.5 parts of 1,2-hexanediol, 0.5 parts of p-hydroxyacetophenone, and 80.5 parts of water.

[0060] Comparative Example 4 In this comparative example, a moisturizing composition comprises the following raw materials in parts by weight: 8 parts of glycerol glucoside solution, 2 parts of glycerol polyether, and 91.8 parts of solvent.

[0061] Furthermore, each portion of the solvent includes the following raw materials in parts by weight: 86.3 parts of water, 5 parts of butanediol, and 0.5 parts of 1,2-hexanediol.

[0062] This comparative example also provides a moisturizing lotion, which comprises the following raw materials in parts by weight: 5 parts of the moisturizing composition prepared in this comparative example, 2 parts of glycerin, 0.1 parts of xanthan gum, 0.1 parts of carbomer, 1 part of cetearyl alcohol, 1.2 parts of cetearyl glucoside, 2 parts of polydimethylsiloxane, 2 parts of isononyl isononanoate, 0.1 parts of arginine, 3 parts of butylene glycol, 0.5 parts of 1,2-hexanediol, 0.5 parts of p-hydroxyacetophenone, and 80.5 parts of water.

[0063] The present invention changes the raw material ratio of the moisturizing composition, as comparative examples 1-4, and the preparation methods of the moisturizing compositions in comparative examples 1-4 are the same as the preparation method in Example 1. The mass percentage of each raw material in the moisturizing compositions prepared in comparative examples 1-4 is shown in Table 2 below: Table 2 The dosage ratio of each raw material in the moisturizing composition of Comparative Examples 1-4

[0064] The moisturizing lotions of Examples 1-4 are respectively used as application examples of the moisturizing compositions of Examples 1-4, and are respectively recorded as Application Examples 1-4; the moisturizing lotions of Comparative Examples 1-4 are respectively used as application examples of the moisturizing compositions of Comparative Examples 1-4, and are respectively recorded as Application Comparative Examples 1-4. The mass percentages of the raw materials in Application Examples 1-4 and Application Comparative Examples 1-4 are shown in Table 3 below: Table 3 The dosage ratio of each raw material in the moisturizing lotion prepared in Examples 1-4 and Comparative Examples 1-4

[0065] The moisturizing composition and moisturizing lotion of the present invention were tested for their effects using the following method: (1) Purpose and principle of the test Moisturizing means to supplement or enhance the content of water, oil and other components in the application area; it helps to maintain the water content of the application area or reduce water loss. The water in the stratum corneum of the skin plays an important role in maintaining skin health, preventing skin aging and moisturizing. The reason for dry skin is that the stratum corneum is insufficient in water, and the water is often combined with the stratum corneum in the form of bound water. An ideal moisturizing product should have the ability to maintain moisture, that is, the smaller the change in moisture, the stronger the moisturizing ability. This test method continuously monitors the change in water weight of the test sample after treatment and draws a moisture change rate △m-time change curve of the test sample. The moisturizing ability of the test sample is observed according to the trend of the moisture change rate △m curve, and then the moisturizing effect of the test sample on the skin is evaluated.

[0066] (2) Relevance of test methods This method is an in vitro method. The relevant literature shows that the trend of the in vivo method is basically consistent with the results of this in vitro method, and the two methods have a certain correlation. Through the experimental design, the test sample is compared with the positive control sample with moisturizing ability. If the moisture change rate Δm curve of the test sample is better (lower) than the moisture change rate Am curve of the positive control, it can be considered that the test sample has a certain moisturizing ability.

[0067] (3) Test indicators

[0068] Test Example 2: Solubility Test (4) Test methods Weigh the sample → pre-treat the test sample; select a reagent with known hygroscopic ability as the positive control* → place the sample and the positive control in a constant temperature and humidity device under certain conditions → weigh the test sample regularly → record the data, calculate the moisture change rate Δm, and make a curve. The moisture change rate test results are as follows: Figure 1 shown.

[0069] *The positive control reagent for this test is: DL-pyroglutamic acid (5) Test results

[0070] From the test result data in the table, it can be seen that the moisturizing lotions of Examples 1-4 have significant moisturizing effects, and their moisturizing abilities are better than those of the moisturizing lotions of Comparative Examples 1-4, proving that the addition of the moisturizing composition of the present invention significantly improves the moisturizing effect of the product; in addition, by comparing the embodiments and the comparative examples, it can be seen that the moisturizing effect achieved by the synergistic effect between the components of the present invention is better than that achieved by adding a single component or two or three components in greater amounts. This shows that the present invention has excellent moisturizing performance and low cost.

[0071] Safety Testing With the 2015 "Technical Specifications for Safety of Cosmetics" as the reference standard, the moisturizing lotion in Example 1 was used to evaluate the irritation of cosmetics. The test method was a skin patch test, and 60 randomly distributed people aged 16-65 were tested.

[0072] Test method: Put the test substance into the patch tester, the dosage is 0.020-0.025g, cover the patch tester with the test substance on the back or forearm of the subject with non-irritating cloth-based tape, and gently press it with the palm to make it evenly adhere to the skin surface for 24 hours. After removing the test patch tester, observe the skin reaction after the indentation disappears 30 minutes later. If the result is negative, observe again 24 hours and 48 hours after the patch test.

[0073] Evaluation criteria: Grade 0: negative reaction; Grade 1: Suspicious reaction, only slight erythema; Grade 2: weak positive reaction, erythema, infiltration, edema, and papules may be present; Grade 3: Strong positive reaction, erythema, infiltration, edema, papules, and the reaction may extend beyond the test area; Grade 4: Very strong positive reaction, obvious erythema, severe infiltration, edema, confluent herpes, and the reaction exceeds the test area. Test results: Skin reactions were negative in all subjects.

[0074] The above test results show that the moisturizing composition provided by the present invention and the moisturizing lotion used as its application product are mild and non-irritating to the skin and safe to use.

[0075] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention may also be implemented in other ways. Any obvious replacement without departing from the concept of the present invention is within the protection scope of the present invention.

Claims

1. A moisturizing composition, characterized in that: The invention comprises the following raw materials in parts by weight: 1-20 parts of glycerol glucoside solution, 1-20 parts of multiple hyaluronic acid, 0.1-1 parts of sodium hyaluronate, 0.1-3 parts of Centella asiatica extract, 1-10 parts of glycerol polyether and 66-97.8 parts of solvent.

2. The moisturizing composition according to claim 1, characterized in that: Each portion of glycerol glucoside solution comprises the following raw materials in parts by weight: 45-55 parts of glycerol glucoside, 3-7 parts of 1,2-pentanediol, and 40-50 parts of water.

3. The moisturizing composition according to claim 1, characterized in that: Each portion of multiple hyaluronic acid includes the following raw materials in parts by weight: 2-3 parts of sodium hyaluronate cross-linked polymer, 2-3 parts of sodium hyaluronate, 0.2-0.4 parts of hydrolyzed sodium hyaluronate, 0.03-0.07 parts of hyaluronic acid, 0.03-0.07 parts of hydrolyzed hyaluronic acid, 0.1-0.3 parts of acetylated sodium hyaluronate, 0.03-0.07 parts of hydroxypropyltrimethylammonium chloride hyaluronic acid, 0.05-0.15 parts of hydrolyzed glycosaminoglycan, 0.2-0.4 parts of 1,2-hexanediol, 0.4-0.9 parts of 1,3-propylene glycol, 0.03-0.07 parts of caprylhydroxamic acid, and 90-95 parts of water.

4. The moisturizing composition according to claim 1, characterized in that: The preparation method of the multiple hyaluronic acid comprises the following steps: (A1) adding water to a container, stirring and adding sodium hyaluronate cross-linked polymer, sodium hyaluronate, hydrolyzed sodium hyaluronate, hyaluronic acid, hydrolyzed hyaluronic acid, acetylated sodium hyaluronate, hydroxypropyltrimethylammonium chloride hyaluronic acid, and hydrolyzed glycosaminoglycan, stirring evenly, raising the temperature to 75-80° C., and stirring at a constant temperature until completely dissolved to obtain a mixture A1; (A2) cooling the mixture A1 to 40-45° C., adding 1,2-hexanediol, 1,3-propylene glycol and octanoylhydroxamic acid, and stirring until the mixture becomes transparent and free of impurities, to obtain a mixture A2; (A3) Cooling the mixture A2 to 35-38° C. and then filtering the mixture to obtain a multiple hyaluronic acid complex.

5. The moisturizing composition according to claim 1, characterized in that: The solvent is at least one of ionized water and alcohol solvents; the alcohol solvent is at least one of 1,3-propylene glycol, butylene glycol, dipropylene glycol, 1,2-hexanediol and glycerol.

6. The moisturizing composition according to claim 1, characterized in that: Each part of the solvent comprises the following raw materials in parts by weight: 35-89.2 parts of water, 5-10 parts of butanediol, and 0.5-1 part of 1,2-hexanediol.

7. A method for preparing the moisturizing composition according to any one of claims 1 to 6, characterized in that: The steps include: (1) Pour water into a container and stir, then add the pre-mixed butylene glycol and sodium hyaluronate, raise the temperature to 75-85° C., and stir at a constant temperature until completely dissolved to obtain a mixture 1; (2) Cooling the mixture 1 to 50-55° C., adding 1,2-hexanediol, and stirring until uniform to obtain a mixture 2; (3) Cooling the mixture 1 to 40-45° C., then adding glyceryl glucoside, multiple hyaluronic acid, Centella asiatica extract and glycerol polyether, and stirring for 10-15 minutes until the mixture becomes transparent and free of impurities, to obtain a mixture 3; (4) Cooling the mixture to 35-38° C. and filtering the mixture to obtain a moisturizing composition.

8. A moisturizing lotion, characterized in that: A moisturizing composition comprising any one of claims 1 to 6.

9. The moisturizing lotion according to claim 8, characterized in that: The invention comprises the following raw materials in parts by weight: 4-6 parts of a moisturizing composition, 1-3 parts of glycerin, 0.05-0.15 parts of xanthan gum, 0.05-0.15 parts of carbomer, 0.8-1.2 parts of cetearyl alcohol, 1-1.4 parts of cetearyl glucoside, 1.5-2.5 parts of polydimethylsiloxane, 1.5-2.5 parts of isononyl isononanoate, 0.05-0.15 parts of arginine, 2-4 parts of butylene glycol, 0.4-0.6 parts of 1,2-hexanediol, 0.4-0.6 parts of p-hydroxyacetophenone and 75-90 parts of water.

10. A method for preparing the moisturizing lotion according to claim 9, characterized in that: The steps include: (B1) adding a portion of water to a container, and then adding the pre-mixed mixture of glycerin, xanthan gum, and carbomer, stirring, and then heating to 80-85° C. to evenly disperse the raw materials to obtain phase A; (B2) mixing cetearyl alcohol, cetearyl glucose, dimethicone and isononyl isononanoate and stirring, and heating to 75-85° C. to evenly disperse the raw materials to obtain phase B; (B3) Add phase B into phase A and homogenize, then stir at 80-85°C; (B4) cooling the mixture obtained in step (B3) to 60-65° C., stirring, adding the pre-treated phase C, and stirring until uniformly dispersed; the phase C is formed by mixing arginine and water; (B5) cooling the mixture obtained in step (B4) to 55-60° C., adding the pre-treated phase D, and stirring until the mixture is uniformly dispersed; the phase D is formed by mixing butanediol, 1,2-hexanediol, and p-hydroxyacetophenone; (B6) stirring the mixture obtained in step (B5) and cooling it to 40-45°C, adding the moisturizing composition, stirring and cooling it to room temperature; then sampling and testing, and filtering and discharging the material after the test is qualified.

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