An oil-phase dispersed sodium hyaluronate highly moisturizing lip balm and its preparation method

Abstract

The present invention discloses an oil-phase dispersed sodium hyaluronate highly efficient moisturizing lip balm, and its raw materials include: sodium hyaluronate, calcium carbonate, emulsifier, beeswax, acetic acid, petroleum ether, glycerol, pigment, plant essential oil, vitamin E, vitamin B1, thickener, functional additive; the mass ratio of sodium hyaluronate, calcium carbonate, emulsifier, beeswax, acetic acid, petroleum ether, glycerol, pigment, plant essential oil, vitamin E, vitamin B1, thickener, functional additive is 1-2: 0.01-0.1: 0.1-1: 7-16: 0.1-1: 20-40: 1-2: 0.1-1: 0.1-0.5: 0.1-0.2: 0.1-0.2: 0.1-0.5: 0.1-0.5; wherein, the functional additive is D-panthenol and / or hydrolyzed protein. The present invention discloses a preparation method of the above-mentioned oil-phase dispersed sodium hyaluronate highly efficient moisturizing lip balm.

Description

Technical Field

[0001] The present invention relates to the technical field of daily necessities, and particularly relates to an oil-phase dispersed sodium hyaluronate highly efficient moisturizing lip balm and a preparation method thereof. Background Art

[0002] The lips are an extension of the facial skin, connected to the mucosa in the oral cavity, with a very thin cutin layer and being relatively sensitive to stimuli, so they are easily affected by the environment. Since the thickness of the lip skin is much thinner than that of the skin in other parts of the body, not only is the cutin layer thin, but the granular layer is also very thin. Since there are no sebaceous glands on the lips and sebum cannot be secreted spontaneously to form a protective layer of sebum film, the water loss rate of the lip skin is much faster than that of the facial skin.

[0003] With the improvement of living standards and consumption upgrading, more and more women have higher and higher requirements for lip makeup products. Substances such as artificial pigments, artificial flavors, heavy metals, and highly polar synthetic esters contained in existing lip products cause common skin problems such as lip skin sensitivity, fragility, dry peeling, etc. At present, moisturizing and combating the aging of lip skin have become new demands of people.

[0004] In the prior art, lip balm is mainly composed of chemical components and skin care components. The chemical components are the basic components of the lip balm, and the skin care components are used to improve the performance of the lip balm. Different from skin care lotions or emulsions, most of the components in lip balm are oil-soluble, and some are even anhydrous formulations. Such oily matrix lip balms are likely to cause skin dryness, and appropriate moisturizing factors need to be added to relieve skin discomfort.

[0005] Sodium hyaluronate is a glucuronic acid and has a special water retention effect. It is the substance with the best moisturizing property found in nature at present. However, the sodium hyaluronate currently commonly circulated on the market is insoluble in oils and belongs to almost completely hydrophilic substances, and it is not easy to be dispersed in the oil phase of the lip balm. On the one hand, due to the extremely low water content, there is no medium for the dissolution and dispersion of hyaluronic acid. On the other hand, even in the case of water solubility, due to the particularly high viscosity of hyaluronic acid after binding water, it causes difficulties in system mixing. Therefore, how to use sodium hyaluronate in lip balm with an oil phase as the main body has become a technical problem to be solved at present. Summary of the Invention

[0006] The purpose of the present invention is to solve the defects existing in the prior art, and to propose an oil-phase dispersed sodium hyaluronate highly efficient moisturizing lip balm and a preparation method thereof.

[0007] An oil-phase dispersed sodium hyaluronate highly efficient moisturizing lip balm, whose raw materials include: sodium hyaluronate, calcium carbonate, emulsifier, beeswax, acetic acid, petroleum ether, glycerol, pigment, plant essential oil, vitamin E, vitamin B1, thickener, functional additive; the mass ratio of sodium hyaluronate, calcium carbonate, emulsifier, beeswax, acetic acid, petroleum ether, glycerol, pigment, plant essential oil, vitamin E, vitamin B1, thickener, functional additive is 1-2: 0.01-0.1: 0.1-1: 7-16: 0.1-1: 20-40: 1-2: 0.1-1: 0.1-0.5: 0.1-0.2: 0.1-0.2: 0.1-0.5: 0.1-0.5; wherein, the functional additive is D-panthenol and / or hydrolyzed protein.

[0008] Preferably, the emulsifier is a non-ionic surfactant.

[0009] In the present invention, the emulsifier can effectively avoid the agglomeration between droplets caused by the generated calcium ions, and effectively reduce the generation of flocculation phenomenon. Different emulsifiers have different HLB values. If the hydrophilicity is strong, it is not conducive to the formation of a stable emulsion. If the lipophilicity is too strong, it cannot dissolve in water.

[0010] Preferably, the emulsifier consists of Tween-80 and OP-10 in a volume ratio of 1-3: 1.

[0011] In the present invention, Tween-80 and OP-10 are compounded as the emulsifier. By controlling the volume ratio of the two, the HLB value is within the range of 10-11, which is close to the critical point of forming a microemulsion. Not only is the interaction between the emulsifier and the oil and water balanced, the formed emulsion is stable, but also the dispersibility is good and agglomeration is not easy to occur.

[0012] Preferably, the sodium hyaluronate is low molecular weight sodium hyaluronate with a molecular weight of 1*-500KDa.

[0013] Preferably, the thickener is guar gum, carbopol resin or carboxymethyl cellulose.

[0014] The preparation method of the above-mentioned oil-phase dispersed sodium hyaluronate highly efficient moisturizing lip balm is characterized by including the following steps:

[0015] (1) Add sodium hyaluronate and calcium carbonate to water, stir evenly, add the emulsifier and beeswax, stir for 1-2 h, disperse into the mixed solution containing acetic acid and petroleum ether, continue to stir for 10-30 min, stand for 10-20 h, filter by suction, rinse, and dry at low temperature to obtain material a;

[0016] (2) Add glycerol and beeswax to material a, heat until completely dissolved, and add pigment under stirring and stir evenly to obtain material b;

[0017] Note: There is a small error in the molecular weight expression in the original text. It should be "10 - 500KDa" instead of "1*-500KDa". The translation has been corrected accordingly.(3) Cool the material b to 40 - 50°C, add plant essential oil, vitamin E, vitamin B1, thickener, and functional additive, stir evenly, and then freeze - form.

[0018] Preferably, the mass ratio of the beeswax used in step (1) to the beeswax used in step (2) is 3 - 6:4 - 10.

[0019] Preferably, in step (2), the temperature for heating to complete dissolution is 70 - 80°C.

[0020] Preferably, in step (3), the temperature for freeze - forming is - 10~ - 18°C.

[0021] The technical effects of the present invention are as follows:

[0022] The present invention uses the compounding of sodium hyaluronate and beeswax. Through a certain process, water - soluble sodium hyaluronate is coated on the surface of lipophilic beeswax, and then a mixed solution of petroleum ether containing acetic acid is coated on the surface. Since sodium hyaluronate carries anionic negative charges, it promotes the gradual diffusion of acetic acid into the interior of the droplets, and then acetic acid combines with calcium carbonate to form soluble calcium ions. The calcium ions then gradually diffuse outwards and react with sodium hyaluronate, thus forming a microcapsule structure.

[0023] [[ID=1⑧]]Due to the large amount of lipophilic beeswax structures in the microcapsule structure, it not only has excellent affinity with ghee and beeswax, but also is evenly dispersed among each other, effectively solving the problem of poor dispersion of water - soluble sodium hyaluronate in the oil phase. However, due to the loose structure of this microcapsule and the fact that the reaction between calcium carbonate and acetic acid releases carbon dioxide gas, the stability of the microcapsule structure is further reduced, resulting in the easy release of sodium hyaluronate therein.

[0024] The present invention uses micro - encapsulation technology to compound sodium hyaluronate and the oily matrix beeswax to achieve encapsulation, and is uniformly dispersed in the oil in the form of microspheres. When the microspheres contact the lip surface, the extrusion process will release small - molecule sodium hyaluronate, which can quickly penetrate into the skin. It can not only firmly lock water, efficiently moisturize, and relieve skin dryness caused by oily raw materials; moreover, sodium hyaluronate can stabilize the spatial distribution of beeswax and oil, which can not only reduce the cracking phenomenon during storage and transportation, but also make the lip balm easier to spread and have a smooth skin - feeling.

[0025] During the long - term use of the present invention, it can repair damaged lips, prevent lip dryness, cracking, and peeling, achieving the purposes of long - term moisturizing, nourishing, repairing, softening, and beautifying the lips, making the lips shiny and elastic. Description of the Drawings

[0026] Figure 1 It is the particle size distribution diagram of the obtained material a in Example 5.

[0027] Figure 2Comparison charts of skin roughness and lip skin elasticity in the lip repair experiments for Example 5 and Comparative Examples 1-2.

[0028] Figure 3 Comparison charts of the preservation rates of the water content in the lip skin cutin layer at different times for Example 5 and Comparative Examples 1-2.

[0029] Figure 4 Comparison charts of the water loss rates of the lip skin cutin layer at different times for Example 5 and Comparative Examples 1-2. Detailed implementation manners

[0030] The present invention will be further explained below in conjunction with specific embodiments.

[0031] Example 1

[0032] An oil-phase dispersed sodium hyaluronate high-efficiency moisturizing lip balm, the raw materials thereof comprising: 1 kg of sodium hyaluronate with a molecular weight of 10-500 KDa, 0.1 kg of calcium carbonate, 0.1 kg of emulsifier, 11 kg of beeswax, 1 kg of acetic acid, 20 kg of petroleum ether, 2 kg of glycerol, 0.1 kg of pigment, 0.5 kg of plant essential oil, 0.1 kg of vitamin E, 0.2 kg of vitamin B1, 0.1 kg of guar gum, 0.1 kg of D-panthenol, and 0.4 kg of hydrolyzed protein. [[ID=2O]]

[0033] The emulsifier is composed of Tween-80 and OP-10 in a volume ratio of 1:1.

[0034] The preparation method of the above oil-phase dispersed sodium hyaluronate high-efficiency moisturizing lip balm comprises the following steps:

[0035] (1) Add sodium hyaluronate and calcium carbonate to 40 kg of water, stir evenly, add the emulsifier and 3 kg of beeswax, stir for 2 h, disperse into the mixed solution containing acetic acid and petroleum ether, continue to stir for 10 min, stand for 20 h, filter by suction, wash successively with ethanol and distilled water, and place in an oven for low-temperature drying to obtain material a;

[0036] (2) Add glycerol and 8 kg of beeswax to material a, heat to 70 °C until completely dissolved, and add the pigment under stirring and stir evenly to obtain material b;

[0037] (3) Cool material b to 50 °C, add plant essential oil, vitamin E, vitamin B1, guar gum, D-panthenol and hydrolyzed protein, stir evenly, pour into a mold, freeze and form at -10 °C, insert into a lip balm tube, and evacuate to obtain the oil-phase dispersed sodium hyaluronate high-efficiency moisturizing lip balm.

[0038] Example 2

[0039] An oil-phase dispersed sodium hyaluronate highly efficient moisturizing lip balm, whose raw materials include: 2 kg of sodium hyaluronate with a molecular weight of 10 - 500 KDa, 0.01 kg of calcium carbonate, 1 kg of emulsifier, 12 kg of beeswax, 0.1 kg of acetic acid, 40 kg of petroleum ether, 1 kg of glycerol, 1 kg of pigment, 0.1 kg of plant essential oil, 0.2 kg of vitamin E, 0.1 kg of vitamin B1, 0.5 kg of carbomer resin, 0.045 kg of D-panthenol, and 0.055 kg of hydrolyzed protein.

[0040] The emulsifier consists of Tween-80 and OP-10 in a volume ratio of 3:1.

[0041] The preparation method of the above oil-phase dispersed sodium hyaluronate highly efficient moisturizing lip balm includes the following steps:

[0042] (1) Add sodium hyaluronate and calcium carbonate to 20 kg of water, stir evenly, add the emulsifier and 6 kg of beeswax, stir for 1 h, disperse it into the mixed solution containing acetic acid and petroleum ether, continue to stir for 30 min, let it stand for 10 h, filter by suction, rinse successively with ethanol and distilled water, and put it into an oven for low-temperature drying to obtain material a;

[0043] (2) Add glycerol and 6 kg of beeswax to material a, heat to 80 °C until completely dissolved, and add pigment with stirring to stir evenly to obtain material b;

[0044] (3) Cool material b to 40 °C, add plant essential oil, vitamin E, vitamin B1, carbomer resin, D-panthenol and hydrolyzed protein, stir evenly, pour it into a mold, freeze and form at -18 °C, insert it into a lip balm tube, and evacuate to obtain the oil-phase dispersed sodium hyaluronate highly efficient moisturizing lip balm.

[0045] Example 3

[0046] An oil-phase dispersed sodium hyaluronate highly efficient moisturizing lip balm, whose raw materials include: 1.2 kg of sodium hyaluronate with a molecular weight of 10 - 500 KDa, 0.07 kg of calcium carbonate, 0.2 kg of emulsifier, 12 kg of beeswax, 0.7 kg of acetic acid, 25 kg of petroleum ether, 1.7 kg of glycerol, 0.3 kg of pigment, 0.4 kg of plant essential oil, 0.13 kg of vitamin E, 0.18 kg of vitamin B1, 0.2 kg of guar gum, and 0.4 kg of D-panthenol.

[0047] The emulsifier consists of Tween-80 and OP-10 in a volume ratio of 1.5:1.

[0048] The preparation method of the above oil-phase dispersed sodium hyaluronate highly efficient moisturizing lip balm includes the following steps:

[0049] (1) Add sodium hyaluronate and calcium carbonate to 35 kg of water and stir evenly. Then add an emulsifier and 4 kg of beeswax and stir for 100 min. Disperse it into a mixed solution containing acetic acid and petroleum ether, continue to stir for 15 min, let it stand for 17 h, filter by suction, rinse successively with ethanol and distilled water, and place it in an oven for low-temperature drying to obtain material a;

[0050] (2) Add glycerol and 8 kg of beeswax to material a, heat to 73 °C until completely dissolved, and add pigment under stirring and stir evenly to obtain material b;

[0051] (3) Cool material b to 48 °C, add plant essential oil, vitamin E, vitamin B1, guar gum, and D-panthenol and stir evenly. Pour it into a mold, freeze and form at -12 °C, insert it into a lipstick tube, and evacuate to obtain a highly moisturizing lipstick containing oil-phase dispersed sodium hyaluronate.

[0052] Example 4

[0053] A highly moisturizing lipstick containing oil-phase dispersed sodium hyaluronate, the raw materials of which include: 1.8 kg of sodium hyaluronate with a molecular weight of 10 - 500 KDa, 0.03 kg of calcium carbonate, 0.8 kg of emulsifier, 11 kg of beeswax, 0.3 kg of acetic acid, 35 kg of petroleum ether, 1.3 kg of glycerol, 0.7 kg of pigment, 0.2 kg of plant essential oil, 0.17 kg of vitamin E, 0.12 kg of vitamin B1, 0.4 kg of carboxymethyl cellulose, and 0.2 kg of hydrolyzed protein.

[0054] The emulsifier is composed of Tween-80 and OP-10 in a volume ratio of 2.5:1.

[0055] The preparation method of the above highly moisturizing lipstick containing oil-phase dispersed sodium hyaluronate includes the following steps:

[0056] (1) Add sodium hyaluronate and calcium carbonate to 25 kg of water and stir evenly. Then add an emulsifier and 5 kg of beeswax and stir for 80 min. Disperse it into a mixed solution containing acetic acid and petroleum ether, continue to stir for 25 min, let it stand for 13 h, filter by suction, rinse successively with ethanol and distilled water, and place it in an oven for low-temperature drying to obtain material a;

[0057] (2) Add glycerol and 6 kg of beeswax to material a, heat to 77 °C until completely dissolved, and add pigment under stirring and stir evenly to obtain material b;

[0058] (3) Cool material b to 42 °C, add plant essential oil, vitamin E, vitamin B1, carboxymethyl cellulose, and hydrolyzed protein and stir evenly. Pour it into a mold, freeze and form at -16 °C, insert it into a lipstick tube, and evacuate to obtain a highly moisturizing lipstick containing oil-phase dispersed sodium hyaluronate.

[0059] Example 5

[0060] An oil-phase dispersed sodium hyaluronate highly efficient moisturizing lip balm, whose raw materials include: 1.5 kg of sodium hyaluronate with a molecular weight of 10 - 500KDa, 0.05 kg of calcium carbonate, 0.5 kg of emulsifier, 11.5 kg of beeswax, 0.5 kg of acetic acid, 30 kg of petroleum ether, 1.5 kg of glycerol, 0.5 kg of pigment, 0.3 kg of plant essential oil, 0.15 kg of vitamin E, 0.15 kg of vitamin B1, 0.3 kg of carboxymethyl cellulose, and 0.3 kg of D-panthenol.

[0061] The emulsifier is composed of Tween-80 and OP-10 in a volume ratio of 2:1.

[0062] The preparation method of the above-mentioned oil-phase dispersed sodium hyaluronate highly efficient moisturizing lip balm includes the following steps:

[0063] (1) Add sodium hyaluronate and calcium carbonate to 30 kg of water, stir evenly, add the emulsifier and 4.5 kg of beeswax, stir for 90 min, disperse into the mixed solution containing acetic acid and petroleum ether, continue to stir for 20 min, let stand for 15 h, filter by suction, rinse successively with ethanol and distilled water, and place in an oven for low-temperature drying to obtain material a;

[0064] Detect the particle size of material a, and its particle size distribution is as Figure 1 shown. The average particle size of material a is 73.92 μm, mainly concentrated between 60 - 100 μm.

[0065] (2) Add glycerol and 7 kg of beeswax to material a, heat to 75 °C until completely dissolved, and add pigment under stirring and stir evenly to obtain material b;

[0066] Let material b stand at high temperature (45 ± 1 °C) for 3 months, at low temperature (-5 to -10 °C) for 7 days, and alternate at high and low temperatures (45 ± 1 °C / -5 to -10 °C) for 1 month. Restore to room temperature, and observe the smell, color, and whether there is precipitation and stratification after 24 h.

[0067] The dispersibility and solubility of material b are both excellent, effectively solving the problem of poor dispersibility of water-soluble sodium hyaluronate in the oil phase, and there is no precipitation and stratification after 24 h, indicating that material b has excellent stability and solving the problem that sodium hyaluronate is extremely easy to decompose and release.

[0068] (3) Cool material b to 45 °C, add plant essential oil, vitamin E, vitamin B1, carboxymethyl cellulose, and D-panthenol, stir evenly, pour into a mold, freeze and form at -14 °C, insert into a lip balm tube, and evacuate to obtain an oil-phase dispersed sodium hyaluronate highly efficient moisturizing lip balm.

[0069] Comparative Example 1

[0070] Use the lip balm sold by a certain Cuishi Commercial Co., Ltd. in Shanghai.

[0071] Comparative Example 2

[0072] A highly efficient sodium hyaluronate moisturizing lip balm, whose raw materials include: 1.5 kg of sodium hyaluronate with a molecular weight of 10 - 500KDa, 7 kg of beeswax, 1.5 kg of glycerol, 0.5 kg of pigment, 0.3 kg of plant essential oil, 0.15 kg of vitamin E, 0.15 kg of vitamin B1, 0.3 kg of carboxymethyl cellulose, and 0.3 kg of D-panthenol.

[0073] The emulsifier consists of Tween-80 and OP-10 in a volume ratio of 2:1.

[0074] The preparation method of the above-mentioned highly efficient sodium hyaluronate moisturizing lip balm includes the following steps:

[0075] (1) Add glycerol and beeswax to sodium hyaluronate, heat to 75°C until completely dissolved, and add pigment and stir evenly under stirring to obtain a premix;

[0076] (2) Cool the premix to 45°C, add plant essential oil, vitamin E, vitamin B1, carboxymethyl cellulose, and D-panthenol and stir evenly, pour into a mold, freeze and form at -14°C, insert into a lip balm tube, and evacuate to obtain the highly efficient sodium hyaluronate moisturizing lip balm.

[0077] Use the lip balms obtained in Example 5 and Comparative Example 2, as well as the lip balm used in Comparative Example 1, to conduct a lip repair experiment, specifically as follows:

[0078] Select 36 subjects aged 18 - 46 years old, including 28 females and 8 males. The lip conditions of the subjects are varying degrees of lip dryness and deepening lip wrinkles. Randomly divide them into 3 groups, with 12 people in each group. The subjects did not use any other drugs and lip balms 1 month before the experiment.

[0079] The 3 groups of subjects were respectively applied with the lip balms obtained in Example 5 and Comparative Example 2, as well as the lip balm used in Comparative Example 1, with an application frequency of once every 2 hours. After 8 hours, observe the lips and measure the lip elasticity and wrinkles.

[0080] Use a skin wrinkle tester to test the lip skin wrinkles, and measure the average skin roughness R3 (μm) before and after using the test sample. The result is expressed by ΔR3 (that is, the difference in the average skin roughness before and after using the sample). The higher the value, the better the wrinkle improvement effect.

[0081] Use a skin elasticity tester to test the lip skin elasticity. The result is expressed by the ratio of the rebound amount Ur (that is, the skin recovery value 0.1 second after canceling the negative pressure) to the maximum skin stretch amount Uf. The closer the value is to 1, the better the skin elasticity.

[0082] As Figure 2As shown, the lipstick obtained in Example 5 can effectively combat dry skin, enhance lip elasticity, and reduce lip lines.

[0083] The lipsticks obtained in Example 5 and Comparative Example 2, as well as the lip balm used in Comparative Example 1, were used to conduct a long-lasting moisturizing experiment, as follows:

[0084] The subjects were allowed to rest for 30 minutes in a constant temperature and humidity environment (temperature 22±1°C, humidity 50±10%), and appropriate areas for sample application were selected to measure initial data at t0 (before using each group of samples).

[0085] Then apply the sample to the selected area on the lips and press 2.0±0.1mg / cm 2 The whole test process was carried out in a constant temperature and humidity environment, and 30 minutes after applying the product (t 30 )、60min(t 60 )、120min(t 120 ) and 240min(t 240 ) measurement data.

[0086] The water content of the lip skin stratum corneum was measured using a Cornumeter. The higher the water content value, the higher the water content of the lip skin stratum corneum, indicating that the product has a better moisturizing effect. The results are as follows Figure 3 As shown, t 30 , t 60 , t 120 , t 240 Compared with t0, the moisture content of the stratum corneum of the lip skin is significantly increased, and the degree of increase in moisture content in the Example 5 group is significantly higher than that in the comparative example group, indicating that the lipstick obtained in Example 5 can increase the moisture content of the stratum corneum of the lip skin, confirming that the present invention has an excellent moisturizing effect.

[0087] Tewameter was used to measure the water loss of the lip skin stratum corneum. The smaller the water loss value, the better the lip skin barrier is, indicating that the product has a better water-locking effect. Figure 4 As shown, t 30 , t 60 , t 120 , t 240 Compared with t0, the water loss rate of the lip skin decreased significantly, and the degree of decrease in the Example 5 group was significantly lower than that in the comparative example group, indicating that the lipstick obtained in Example 5 can reduce the water loss of the lip skin, confirming that the present invention has the effect of moisturizing and locking water.

[0088] In summary, the lipstick obtained by the present invention can solve the problems existing in lipsticks on the market, and can repair damaged lips during long-term use. It also has excellent moisturizing and nourishing effects, making the lips gradually regain their softness and elasticity, becoming more and more shiny, plump and attractive.

[0089] As described above, it is only the preferred specific implementation manner of the present invention. However, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention should cover within the protection scope of the present invention when making equivalent substitutions or changes according to the technical solution and inventive concept of the present invention.

Claims

1. A highly effective moisturizing lipstick containing oil-phase dispersed sodium hyaluronate, characterized in that: The preparation raw materials include: sodium hyaluronate, calcium carbonate, emulsifier, beeswax, acetic acid, petroleum ether, glycerin, pigment, plant essential oil, vitamin E, vitamin B1, thickener, and functional additives; the mass ratio of sodium hyaluronate, calcium carbonate, emulsifier, beeswax, acetic acid, petroleum ether, glycerin, pigment, plant essential oil, vitamin E, vitamin B1, thickener, and functional additives is 1-2: 0.01-0.1: 0.1-1: 7-16: 0.1-1: 20-40: 1-2: 0.1-1: 0.1-0.5: 0.1-0.2: 0.1-0.2: 0.1-0.5: 0.1-0.5; Wherein, the functional additive is D-panthenol and / or hydrolyzed protein; Sodium hyaluronate is a low molecular weight sodium hyaluronate with a molecular weight of 10-500KDa; The emulsifier is composed of Tween-80 and OP-10 in a volume ratio of 1-3:1; Prepared by the following steps: (1) Sodium hyaluronate and calcium carbonate are added to water and stirred evenly, an emulsifier and beeswax are added and stirred for 1-2 hours, and the mixture is dispersed into a mixture containing acetic acid and petroleum ether, and the mixture is stirred for 10-30 minutes, allowed to stand for 10-20 hours, filtered, rinsed, and dried at low temperature to obtain material a; (2) Add glycerin and beeswax to material a, heat until completely dissolved, add pigment while stirring, and stir evenly to obtain material b; (3) cooling material b to 40-50° C., adding plant essential oil, vitamin E, vitamin B1, thickener, and functional additives, stirring evenly, and freezing to form; The mass ratio of the beeswax used in step (1) to the beeswax used in step (2) is 3-6:4-10; In step (2), the temperature for heating to complete dissolution is 70-80°C.

2. The high-efficiency moisturizing lipstick containing oil-phase dispersed sodium hyaluronate according to claim 1, characterized in that: The thickener is guar gum, carbomer or carboxymethyl cellulose.

3. A method for preparing a highly effective moisturizing lipstick containing oil-phase dispersed sodium hyaluronate according to any one of claims 1 to 2, characterized in that: The steps include: (1) Sodium hyaluronate and calcium carbonate are added to water and stirred evenly, an emulsifier and beeswax are added and stirred for 1-2 hours, and the mixture is dispersed into a mixture containing acetic acid and petroleum ether, and the mixture is stirred for 10-30 minutes, allowed to stand for 10-20 hours, filtered, rinsed, and dried at low temperature to obtain material a; (2) Add glycerin and beeswax to material a, heat until completely dissolved, add pigment while stirring, and stir evenly to obtain material b; (3) cooling material b to 40-50° C., adding plant essential oil, vitamin E, vitamin B1, thickener, and functional additives, stirring evenly, and freezing to form; The mass ratio of the beeswax used in step (1) to the beeswax used in step (2) is 3-6:4-10; In step (2), the temperature for heating to complete dissolution is 70-80°C.

4. The method for preparing the oil-phase dispersed sodium hyaluronate high-efficiency moisturizing lipstick according to claim 3, characterized in that: In step (3), the freezing molding temperature is -10 to -18°C.

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