Moisturizing and whitening essence

Abstract

The invention discloses a moisturizing and whitening essence, and belongs to the technical field of cosmetics, the moisturizing and whitening essence comprises the following raw materials: glycerol, 1, 3-propylene glycol, trehalose, xylitol, and a moisturizing and whitening composition. Wherein the moisturizing and whitening composition is prepared from a callicarpa bodinieri extract, ray proteoglycan, ascorbyl glucoside and squalane, and the content of the moisturizing and whitening composition is 2-10 wt%. The invention further discloses a preparation method of the moisturizing and whitening essence. The essence disclosed by the invention is mild to skin, non-irritant and stable in property, can provide all-around care for the skin after being used insist, and achieves the effects of deeply moisturizing, whitening and fading spots.

Description

Technical Field

[0001] The invention belongs to the technical field of cosmetics, and particularly relates to a moisturizing and whitening essence. Background Art

[0002] Essence is a highly nutritious skin care product that contains rich active ingredients, including active ingredients extracted from natural plants, animals or minerals. Essence is easier to enter the basal layer from the skin surface than general skin care products, replenishing the required nutrients and moisture for the skin in time, and improving the health of the skin. Among them, the hydrating and whitening essence focuses on solving problems such as rough and dry skin, dark spots, etc., bringing all-round nourishment to the skin and making it moist and radiant. For example, Chinese patent CN105287341B discloses a whitening and moisturizing essence and a preparation method thereof, wherein the essence comprises the following raw materials: polyols, Chinese herbal extracts, honey, pearl powder, thickeners, essences, and water, wherein the Chinese herbal extracts are prepared from Eucommia ulmoides, Asparagus cochinchinensis, Coix seeds and blueberries, and are rich in protein, vitamins and antioxidant ingredients, which can inhibit tyrosinase activity, neutralize free radicals, eliminate spots, make the skin white, tender and smooth, and polyols and honey can play a good moisturizing role.

[0003] Chinese patent CN102319199B discloses a natural long-lasting moisturizing essence and a preparation method thereof, comprising the following steps: adding trehalose, erythritol, xanthan gum and glycerin into water at the same time and heating to dissolve, cooling and adding yeast extract, hibiscus flower extract and dipotassium glycyrrhizinate and stirring evenly, adjusting the pH with citric acid, adding a preservative and stirring evenly. It utilizes natural ingredients such as yeast and hibiscus flower extract, trehalose, erythritol and xanthan gum to combine and proportion to achieve better skin moisturizing effect. Chinese patent CN105853287B discloses a golden sunflower moisturizing essence and a preparation method thereof, wherein the moisturizing essence comprises: golden sunflower extract, osmanthus extract, terminalia tataricus fruit extract, butylene glycol, carbomer, propylene glycol, sodium hyaluronate, xylitol, milk protein, triethanolamine, phenoxyethanol and water, and utilizes rich plant extract ingredients such as golden sunflower extract, osmanthus extract, terminalia tataricus fruit extract to cooperate with each other to enhance the moisturizing effect, and combines with auxiliary materials such as milk protein, sodium hyaluronate, xylitol, etc., to significantly improve dry and rough skin conditions, making the skin supple, smooth and elastic. The present invention aims to provide a new formula of moisturizing and whitening essence, which is mild and non-irritating to the skin when used, can easily penetrate the skin surface, effectively reach the basal layer, provide timely nourishment for the skin, inhibit melanin production while increasing the moisture content of the skin, and achieve the dual effects of moisturizing and whitening. Summary of the invention

[0004] In view of the deficiencies in the above-mentioned prior art, the present invention provides a hydrating and whitening essence, which adds a hydrating and whitening composition made of callicarpa extract, stingray proteoglycan, ascorbyl glucoside and squalane, and is matched with other raw materials to provide all-round care for the skin by timely replenishing nutrition and moisture, thereby achieving the effects of deep hydration, whitening and lightening. The present invention also discloses a preparation method of the above-mentioned hydrating and whitening essence, which has a simple process and is green and pollution-free.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A moisturizing and whitening essence comprises the following raw materials: glycerol, 1,3-propylene glycol, trehalose, xylitol, 1,2-hexanediol, ethylhexylglycerol, polyglycerol-6, carbomer and water.

[0007] Among them, glycerol and 1,3-propylene glycol, as moisturizers and cosolvents, are beneficial to maintaining skin moisture, making the skin hydrated and smooth, and assisting other active ingredients in the essence to be better absorbed and utilized by the skin. Trehalose is easily absorbed by the skin, can improve the anti-drying ability of skin cells and prevent water loss, and has a stabilizing effect on active ingredients such as phenols in the essence. Xylitol can increase the moisture content of the skin, has the ability to protect the skin barrier, and makes the skin soft and smooth. 1,2-Hexanediol can be combined with ethylhexylglycerol as a bactericidal preservative to inhibit the growth and reproduction of bacteria and fungi, and both have good moisturizing effects; Polyglycerol-6 has good wettability. As an emulsifier and surfactant, it can improve the stability of the essence and also play a moisturizing and water-locking role.

[0008] Preferably, the hydrating and whitening essence also includes a hydrating and whitening composition.

[0009] The moisturizing and whitening composition adopted by the invention is prepared from callicarpa oleifera extract, ray proteoglycan, ascorbyl glucoside and squalane.

[0010] Among them, ascorbyl glucoside is non-irritating to the skin, has good stability, can inhibit the production of melanin, and reduce the deposition of skin pigments. At the same time, it can also prevent ultraviolet radiation from damaging skin cells, achieving the effect of whitening and brightening the skin tone.

[0011] Squalane has strong affinity to the skin and good permeability. It can open the skin pores and promote blood microcirculation, accelerating the penetration of other active ingredients into the skin. It can replenish skin cell lipids, nourish the skin, and form a natural breathable and water-locking protective film on the surface of the skin.

[0012] The whole herb of Callicarpa contains a variety of active ingredients, such as phenols, terpenes, callicarponone, ursolic acid, glycosides, etc., which have good antibacterial, anti-inflammatory and antioxidant effects. Using Callicarpa extract in cosmetics can not only inhibit the production of melanin, achieve the effect of whitening and lightening spots, but also relieve skin sensitivity and prevent external environmental irritation to the skin.

[0013] Stingray proteoglycan is a complex of protein and sugar formed by covalent bonding of sugar chains and peptide chains. It has a very strong ability to bind water. This structure makes it more biocompatible, allowing ingredients to penetrate the skin layer more effectively and avoid allergic reactions. Stingray proteoglycan has both the nourishing properties of protein and the moisturizing properties of polysaccharides, providing comprehensive care for the skin. The water-binding ability of stingray proteoglycan provides excellent moisturizing effects for the essence, while cooperating with other active ingredients to repair and nourish damaged skin cells, restoring skin smoothness and elasticity.

[0014] Preferably, the preparation method of the moisturizing and whitening composition comprises the following steps:

[0015] D1: Crush the Herba Callicarpae to obtain Herba Callicarpae powder, add the Herba Callicarpae powder to an ethylene glycol aqueous solution, heat and stir, filter after the mixture is finished, concentrate the filtrate under reduced pressure, and freeze-dry to obtain a Herba Callicarpae extract;

[0016] D2 crushes the skate cartilage to obtain skate cartilage powder, adds the skate cartilage powder to a sodium hydroxide aqueous solution, heats and stirs, filters after completion, adjusts the pH value of the filtrate to neutral, then precipitates with anhydrous ethanol, retains the precipitate after centrifugation, and freeze-dries to obtain skate proteoglycan;

[0017] D3: 1-2 parts by weight of Callicarpa oleracea extract, 1-2 parts by weight of stingray proteoglycan, 0.5-1.5 parts by weight of ascorbyl glucoside, 1-3 parts by weight of squalane and 1-3 parts by weight of water are uniformly mixed to obtain the moisturizing and whitening composition.

[0018] Preferably, the preparation method of the moisturizing and whitening composition comprises the following steps:

[0019] D1: Grind the washed and dried whole herb of Callicarpa ovata to 100-300 mesh to obtain Callicarpa ovata powder, add the Callicarpa ovata powder to 40-60wt% ethylene glycol aqueous solution at a solid-liquid ratio of 1g:5-10mL, stir at 70-90°C and 100-200r / min for 150-250min, filter after completion, concentrate the filtrate under reduced pressure, and freeze-dry to obtain Callicarpa ovata extract;

[0020] D2: crushing the washed and dried skate cartilage into 100-300 meshes to obtain skate cartilage powder, adding the skate cartilage powder to 6-8wt% sodium hydroxide aqueous solution at a solid-liquid ratio of 1g:10-15mL, stirring at 50-70°C and 100-200r / min for 300-400min, filtering after completion, adjusting the pH value of the filtrate to neutral, and then precipitating with anhydrous ethanol, retaining the precipitate after centrifugation, and freeze-drying to obtain skate proteoglycan;

[0021] D3: 1-2 parts by weight of Callicarpa oleracea extract, 1-2 parts by weight of stingray proteoglycan, 0.5-1.5 parts by weight of ascorbyl glucoside, 1-3 parts by weight of squalane and 1-3 parts by weight of water are uniformly mixed to obtain the moisturizing and whitening composition.

[0022] Preferably, a hydrating and whitening essence is composed of the following raw materials: 0.5-10wt% of glycerol, 0.5-10wt% of 1,3-propylene glycol, 0.1-2wt% of trehalose, 0.1-2wt% of xylitol, 2-10wt% of the hydrating and whitening composition, 0.1-2wt% of 1,2-hexanediol, 0.1-1wt% of ethylhexylglycerol, 0.1-1wt% of polyglycerol-6, 0.05-0.5wt% of carbomer, and water as the balance.

[0023] Preferably, a hydrating and whitening essence is composed of the following raw materials: 1-5wt% of glycerol, 1-5wt% of 1,3-propylene glycol, 0.6-1.2wt% of trehalose, 0.6-1.2wt% of xylitol, 5-8wt% of the hydrating and whitening composition, 0.6-1.2wt% of 1,2-hexanediol, 0.3-0.6wt% of ethylhexylglycerol, 0.3-0.6wt% of polyglycerol-6, 0.1-0.3wt% of carbomer, and water as the balance.

[0024] The invention also provides a method for preparing the moisturizing and whitening essence.

[0025] Preferably, a method for preparing a hydrating and whitening essence comprises the following steps:

[0026] According to the raw material formula, glycerol, 1,3-propylene glycol, trehalose, xylitol and the moisturizing and whitening composition are weighed and added into water, and stirred at 40-50° C. and 100-200 r / min for 10-30 min. Then 1,2-hexanediol, ethylhexylglycerol, polyglycerol-6 and carbomer are added and stirred for 10-20 min. After the test is qualified, the material is discharged and filled to obtain the moisturizing and whitening essence.

[0027] Beneficial effects of the present invention:

[0028] (1) The hydrating and whitening essence of the present invention provides a comprehensive care for the skin by timely replenishing nutrition and moisture through a specific hydrating and whitening composition combined with other raw materials, thereby achieving the effects of deep hydration, whitening and lightening.

[0029] (2) The hydrating and whitening composition of the present invention uses Callicarpa oleracea extract and stingray proteoglycan as main effective components, supplemented by ascorbyl glucoside and squalane. Through synergistic effects, different ingredients complement each other, so that the hydrating and whitening essence can exert better effects in deep hydration, whitening and lightening, and enhancing moisturizing and barrier functions.

[0030] (3) The active ingredients in the Callicarpa extract have anti-inflammatory and antioxidant properties, which help to reduce skin sensitivity. The moisturizing effect of the stingray proteoglycan can relieve inflammatory reactions and promote skin repair. The whitening effect of the Callicarpa extract combined with the moisturizing effect of the stingray proteoglycan can effectively lighten spots while maintaining skin moisture, making the skin brighter and more elastic. Ascorbyl glucoside and Callicarpa extract jointly inhibit the production of melanin and prevent melanin deposition in the skin, thereby achieving a long-term whitening effect. Squalane can not only enter the skin to replenish cell lipids, but also promote blood microcirculation, which helps other active ingredients to better penetrate into the skin layer and enhance the overall nutrition and repair effect. Ascorbyl glucoside has an antioxidant effect that can prevent free radical damage to the skin, while the permeability and nourishing effect of squalane can enhance this antioxidant effect, provide comprehensive nourishment to the skin and promote cell repair; the whitening effect of ascorbyl glucoside works synergistically with the natural protective film formed by squalane to reduce pigmentation and brighten skin tone, while locking in moisture and protecting the skin from external stimuli. DETAILED DESCRIPTION

[0031] The following will be combined with the specific embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Example 1

[0033] A moisturizing and whitening essence is composed of the following raw materials: 1wt% of glycerol, 5wt% of 1,3-propylene glycol, 0.6wt% of trehalose, 1.2wt% of xylitol, 5wt% of a moisturizing and whitening composition, 0.6wt% of 1,2-hexanediol, 0.6wt% of ethylhexylglycerol, 0.3wt% of polyglycerol-6, 0.3wt% of carbomer, and the balance is water.

[0034] The preparation method of the moisturizing and whitening composition comprises the following steps:

[0035] D1: Grind the washed and dried whole herb of Callicarpa ovata into 200 meshes to obtain Callicarpa ovata powder, add the Callicarpa ovata powder into 55 wt% ethylene glycol aqueous solution at a solid-liquid ratio of 1 g:8 mL, stir at 80°C and 150 r / min for 200 min, filter after the mixture is removed, concentrate the filtrate under reduced pressure, and freeze-dry to obtain Callicarpa ovata extract;

[0036] D2: Crush the washed and dried skate cartilage to 200 mesh to obtain skate cartilage powder, add the skate cartilage powder to 7.2wt% sodium hydroxide aqueous solution at a solid-liquid ratio of 1g:12mL, and stir at 65°C and 150r / min for 320min. After the mixture is filtered, the pH value of the filtrate is adjusted to neutral, and then precipitated with anhydrous ethanol. After centrifugation, the precipitate is retained and freeze-dried to obtain skate proteoglycan;

[0037] D3: 1.5 parts by weight of Callicarpa oleracea extract, 1.5 parts by weight of stingray proteoglycan, 1 part by weight of ascorbyl glucoside, 2 parts by weight of squalane and 2 parts by weight of water are uniformly mixed to obtain the moisturizing and whitening composition.

[0038] A method for preparing a moisturizing and whitening essence comprises the following steps:

[0039] According to the raw material formula, glycerol, 1,3-propylene glycol, trehalose, xylitol and the moisturizing and whitening composition were weighed and added into water, and stirred at 45° C. and 150 r / min for 20 min. Then 1,2-hexanediol, ethylhexylglycerol, polyglycerol-6 and carbomer were added and stirred for 15 min. After the test was qualified, the material was discharged and filled to obtain the moisturizing and whitening essence.

[0040] Example 2

[0041] A moisturizing and whitening essence is composed of the following raw materials: 5wt% of glycerol, 1wt% of 1,3-propylene glycol, 1.2wt% of trehalose, 0.6wt% of xylitol, 8wt% of a moisturizing and whitening composition, 1.2wt% of 1,2-hexanediol, 0.3wt% of ethylhexylglycerol, 0.6wt% of polyglycerol-6, 0.1wt% of carbomer, and the balance is water.

[0042] The preparation method of the moisturizing and whitening composition is the same as that of Example 1.

[0043] The preparation method of a hydrating and whitening essence is the same as that of Example 1.

[0044] Example 3

[0045] A moisturizing and whitening essence is composed of the following raw materials: 3wt% of glycerol, 2wt% of 1,3-propylene glycol, 1wt% of trehalose, 1wt% of xylitol, 6wt% of a moisturizing and whitening composition, 1wt% of 1,2-hexanediol, 0.5wt% of ethylhexylglycerol, 0.5wt% of polyglycerol-6, 0.2wt% of carbomer, and the balance being water.

[0046] The preparation method of the moisturizing and whitening composition is the same as that of Example 1.

[0047] The preparation method of a hydrating and whitening essence is the same as that of Example 1.

[0048] Example 4

[0049] A moisturizing and whitening essence is composed of the following raw materials: 3wt% of glycerol, 2wt% of 1,3-propylene glycol, 1wt% of trehalose, 1wt% of xylitol, 6wt% of a moisturizing and whitening composition, 1wt% of 1,2-hexanediol, 0.5wt% of ethylhexylglycerol, 0.5wt% of polyglycerol-6, 0.2wt% of carbomer, and the balance being water.

[0050] The preparation method of the moisturizing and whitening composition comprises the following steps:

[0051] 2.5 parts by weight of ascorbyl glucoside, 3.5 parts by weight of squalane and 2 parts by weight of water were uniformly mixed to obtain the moisturizing and whitening composition.

[0052] A method for preparing a moisturizing and whitening essence comprises the following steps:

[0053] According to the raw material formula, glycerol, 1,3-propylene glycol, trehalose, xylitol and the moisturizing and whitening composition were weighed and added into water, and stirred at 45° C. and 150 r / min for 20 min. Then 1,2-hexanediol, ethylhexylglycerol, polyglycerol-6 and carbomer were added and stirred for 15 min. After the test was qualified, the material was discharged and filled to obtain the moisturizing and whitening essence.

[0054] Example 5

[0055] A moisturizing and whitening essence is composed of the following raw materials: 3wt% of glycerol, 2wt% of 1,3-propylene glycol, 1wt% of trehalose, 1wt% of xylitol, 6wt% of a moisturizing and whitening composition, 1wt% of 1,2-hexanediol, 0.5wt% of ethylhexylglycerol, 0.5wt% of polyglycerol-6, 0.2wt% of carbomer, and the balance being water.

[0056] The preparation method of the moisturizing and whitening composition comprises the following steps:

[0057] D1: Crush the washed and dried skate cartilage to 200 mesh to obtain skate cartilage powder, add the skate cartilage powder to 7.2wt% sodium hydroxide aqueous solution at a solid-liquid ratio of 1g:12mL, and stir at 65°C and 150r / min for 320min. After the mixture is filtered, the pH value of the filtrate is adjusted to neutral, and then precipitated with anhydrous ethanol. After centrifugation, the precipitate is retained and freeze-dried to obtain skate proteoglycan;

[0058] D2: 1.5 parts by weight of stingray proteoglycan, 2.5 parts by weight of ascorbyl glucoside, 2 parts by weight of squalane and 2 parts by weight of water are uniformly mixed to obtain the moisturizing and whitening composition.

[0059] A method for preparing a moisturizing and whitening essence comprises the following steps:

[0060] According to the raw material formula, glycerol, 1,3-propylene glycol, trehalose, xylitol and the moisturizing and whitening composition were weighed and added into water, and stirred at 45° C. and 150 r / min for 20 min. Then 1,2-hexanediol, ethylhexylglycerol, polyglycerol-6 and carbomer were added and stirred for 15 min. After the test was qualified, the material was discharged and filled to obtain the moisturizing and whitening essence.

[0061] Example 6

[0062] A moisturizing and whitening essence is composed of the following raw materials: 3wt% of glycerol, 2wt% of 1,3-propylene glycol, 1wt% of trehalose, 1wt% of xylitol, 6wt% of a moisturizing and whitening composition, 1wt% of 1,2-hexanediol, 0.5wt% of ethylhexylglycerol, 0.5wt% of polyglycerol-6, 0.2wt% of carbomer, and the balance being water.

[0063] The preparation method of the moisturizing and whitening composition comprises the following steps:

[0064] D1: Grind the washed and dried whole herb of Callicarpa ovata into 200 meshes to obtain Callicarpa ovata powder, add the Callicarpa ovata powder into 55 wt% ethylene glycol aqueous solution at a solid-liquid ratio of 1 g:8 mL, stir at 80°C and 150 r / min for 200 min, filter after the mixture is removed, concentrate the filtrate under reduced pressure, and freeze-dry to obtain Callicarpa ovata extract;

[0065] D2: 1.5 parts by weight of Callicarpa oleracea extract, 1 part by weight of ascorbyl glucoside, 3.5 parts by weight of squalane and 2 parts by weight of water are uniformly mixed to obtain the moisturizing and whitening composition.

[0066] A method for preparing a moisturizing and whitening essence comprises the following steps:

[0067] According to the raw material formula, glycerol, 1,3-propylene glycol, trehalose, xylitol and the moisturizing and whitening composition were weighed and added into water, and stirred at 45° C. and 150 r / min for 20 min. Then 1,2-hexanediol, ethylhexylglycerol, polyglycerol-6 and carbomer were added and stirred for 15 min. After the test was qualified, the material was discharged and filled to obtain the moisturizing and whitening essence.

[0068] Test Example 1

[0069] Invite 120 subjects (30-50 years old) to conduct human skin closed patch test according to the human skin patch test method in the "Technical Specifications for Safety of Cosmetics".

[0070] Test results: The subjects had no positive reaction or suspicious reaction to the essences of Examples 1-6, which proves that the raw material formula of the essence of the present invention is safe.

[0071] Test Example 2

[0072] 120 subjects (30-50 years old) were invited to use the above essence once in the morning and evening for 14 consecutive days, and various indicators were tested by MELAFIND skin pigment analyzer. No other cosmetics were used during the test. The ambient temperature during the test was 25±2℃, and the ambient humidity was 50±5%. The test was repeated 10 times and the average value was taken. The results are shown in Table 1.

[0073] Melanin reduction rate = (T1-T2) / T1×100%

[0074] Among them, T1 is the initial melanin content, and T2 is the melanin content after use.

[0075] Table 1. Whitening effect of serum

[0076] Melanin reduction rate / % Example 1 24.0 Example 2 25.7 Example 3 24.5 Example 4 19.8 Example 5 21.5 Example 6 22.6

[0077] Test Example 2

[0078] 120 subjects (30-50 years old) were invited to use the above essence once in the morning and evening every day for 28 consecutive days. The moisture content of the stratum corneum of the skin at the beginning and after use was measured by the moisture test probe Corneometer CM825. No other cosmetics were used during the test. The ambient temperature during the test was 25±2℃, the ambient humidity was 50±5%, and the test was repeated 10 times to take the average value. The results are shown in Table 2.

[0079] Table 2. Moisturizing effect of essence

[0080]

[0081] As can be seen from Table 1-2, the hydrating and whitening essence of the present invention can effectively increase the moisture content of the skin and reduce the melanin content of the skin, thereby achieving the effects of deep hydration and whitening and brightening the skin.

[0082] Compared with Examples 4-6, Examples 1-3 of the present invention use a specific moisturizing and whitening composition, which uses purple pearl grass extract and ray proteoglycan as the main functional components, supplemented with ascorbyl glucoside and squalane, and the different ingredients complement each other and synergize, so that the moisturizing and whitening essence can play a better effect in deep moisturizing, whitening and brightening. The active ingredients in the purple pearl grass extract have anti-inflammatory and antioxidant properties, which help to reduce skin sensitivity, and the moisturizing effect of ray proteoglycan can relieve inflammatory reactions and promote skin repair; the whitening effect of the purple pearl grass extract combined with the moisturizing effect of the ray proteoglycan can effectively fade spots, while maintaining skin moisture, making the skin brighter and more elastic; ascorbyl glucoside and purple pearl grass extract jointly inhibit the production of melanin, while preventing the deposition of melanin in the skin, thereby achieving a long-term whitening effect; squalane can not only enter the skin to replenish cell lipids, but also promote blood microcirculation, which helps other active ingredients to better penetrate into the skin layer and enhance the overall nutrition and repair effect.

[0083] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A moisturizing and whitening essence, characterized in that: The invention comprises the following raw materials: propylene glycol, 1,3-propylene glycol, trehalose, xylitol and a moisturizing and whitening composition.

2. The moisturizing and whitening essence according to claim 1, characterized in that: The moisturizing and whitening composition is prepared from callicarpa oleifera extract, ray proteoglycan, ascorbyl glucoside and squalane.

3. The moisturizing and whitening essence according to claim 1, characterized in that: The moisturizing and whitening composition is prepared by uniformly mixing 1-2 parts by weight of Callicarpa oleracea extract, 1-2 parts by weight of skate proteoglycan, 0.5-1.5 parts by weight of ascorbyl glucoside, 1-3 parts by weight of squalane and 1-3 parts by weight of water.

4. The moisturizing and whitening essence according to claim 2 or 3, characterized in that: The preparation method of the Callicarpa oleracea extract comprises the following steps: crushing Callicarpa oleracea, adding ethylene glycol aqueous solution, heating for extraction, filtering, concentrating and drying the filtrate to obtain the Callicarpa oleracea extract.

5. The moisturizing and whitening essence according to claim 2 or 3, characterized in that: The preparation method of the skate proteoglycan comprises the following steps: crushing skate cartilage, adding sodium hydroxide aqueous solution, heating and extracting, filtering, taking the filtrate, adjusting the pH value to neutral, precipitating with anhydrous ethanol, centrifuging, collecting and drying the precipitate to obtain the skate proteoglycan.

6. The moisturizing and whitening essence according to claim 1, characterized in that: Also includes: 1,2-Hexanediol, Ethylhexylglycerin, Polyglyceryl-6, Carbomer, Water.

7. The moisturizing and whitening essence according to claim 1, characterized in that: The invention is composed of the following raw materials: 0.5-10wt% of glycerol, 0.5-10wt% of 1,3-propylene glycol, 0.1-2wt% of trehalose, 0.1-2wt% of xylitol, 2-10wt% of a moisturizing and whitening composition, 0.1-2wt% of 1,2-hexanediol, 0.1-1wt% of ethylhexylglycerol, 0.1-1wt% of polyglycerol-6, 0.05-0.5wt% of carbomer, and the balance is water.

8. The moisturizing and whitening essence according to claim 1, characterized in that: The invention is composed of the following raw materials: 1-5wt% of glycerol, 1-5wt% of 1,3-propylene glycol, 0.6-1.2wt% of trehalose, 0.6-1.2wt% of xylitol, 5-8wt% of a moisturizing and whitening composition, 0.6-1.2wt% of 1,2-hexanediol, 0.3-0.6wt% of ethylhexylglycerol, 0.3-0.6wt% of polyglycerol-6, 0.1-0.3wt% of carbomer, and the balance is water.

9. The method for preparing the moisturizing and whitening essence according to any one of claims 6 to 8, characterized in that: The following steps are involved: According to the raw material formula, glycerol, 1,3-propylene glycol, trehalose, xylitol and the moisturizing and whitening composition are weighed and added into water, heated and stirred, and then 1,2-hexanediol, ethylhexylglycerol, polyglycerol-6 and carbomer are added and stirred continuously. After the test is qualified, the material is discharged and filled to obtain the moisturizing and whitening essence.

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