CN110917067B

CN110917067B - A skin caring cream with high moisture keeping effect for bath and its preparation method

Info

Publication number: CN110917067B
Application number: CN201911224281.8A
Authority: CN
Inventors: 林孝发; 林孝山; 毛光伟; 陈浩宽; 黄鲲鹏
Original assignee: Jomoo Kitchen and Bath Co Ltd
Current assignee: Jomoo Kitchen and Bath Co Ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2021-09-21
Anticipated expiration: 2039-12-04
Also published as: CN110917067A; WO2021109319A1

Abstract

A skin caring cream with high moisture keeping effect for bath and its preparation method are provided. The skin-moistening cream for bathing comprises: the skin-moistening cream comprises a first polyethylene glycol, oil-class skin-moistening moisturizers, water-soluble silicon wax, polyhydric alcohol, silicone-class moisturizing lubricants, dimethiconol, hydrogenated lecithin, high-molecular moisturizers, ceramide and polyglycerol-class emulsifiers, wherein the average molecular weight of the first polyethylene glycol is 4400-10000. The skin cream for bath has the advantages of high moisturizing effect, long service life and stable performance.

Description

A skin caring cream with high moisture keeping effect for bath and its preparation method

Technical Field

The application relates to but is not limited to the field of skin care products, in particular to but not limited to a bath skin cream with high moisturizing effect and a preparation method thereof.

Background

The bath beauty lotion is a skin care product used in combination with a beauty shower head during bathing, is dissolved in water in the beauty shower head and is sprayed on a user body through the beauty shower head, thereby achieving the effects of whitening, moisturizing and the like. Most of the nutrient components of the existing beauty liquid are carried away by water, and only a small part of the nutrient components are left on the surface of the skin. Moreover, the service life of the existing beauty liquid is short, and if a person uses the beauty liquid for 30 seconds once a day, the beauty liquid can be generally used for only one month.

Therefore, there is a need to develop an alternative to a lotion that has better skin care efficacy and longer life.

Disclosure of Invention

Aiming at the defects of the existing beauty fluid, the application provides a bath skin-moistening cream with high moisturizing effect and long service life and a preparation method thereof.

Specifically, the present application provides a skin cream for bath having a high moisturizing effect, comprising: the skin-moistening cream comprises a first polyethylene glycol, oil-class skin-moistening moisturizers, water-soluble silicon wax, polyhydric alcohol, silicone-class moisturizing lubricants, dimethiconol, hydrogenated lecithin, high-molecular moisturizers, ceramide and polyglycerol-class emulsifiers, wherein the average molecular weight of the first polyethylene glycol is 4400-10000.

In the examples of the present application, the content of the above components in the bath cream may be:

in the embodiment of the present application, the first polyethylene glycol may be selected from any one or more of polyethylene glycol-180 (average molecular weight of 7200-.

In embodiments herein, the first polyethylene glycol may be present in the bath emollient cream in an amount of 25% to 47%, optionally 25% to 35% by weight.

In the embodiment of the present application, the bath skin cream may further include a second polyethylene glycol having an average molecular weight of 1350-.

In the embodiment of the application, the second polyethylene glycol is selected from any one or more of polyethylene glycol-90 (with an average molecular weight of 3500-.

In embodiments herein, the oil-based moisturizer may be selected from any one or more of petrolatum, vegetable oils, and synthetic oils.

In embodiments herein, the water-soluble silicone wax may be selected from any one or more of bis-PEG-18 methyl ether dimethylsilane, bis-PEG-15 methyl ether polydimethylsiloxane, and bis-PEG-12 polydimethylsiloxane beeswax.

In embodiments herein, the polyol may be selected from any one or more of butylene glycol, glycerol, 1,2 propylene glycol, 1, 3-propylene glycol, methyl propylene glycol, and dipropylene glycol.

In the examples herein, the silicone-based moisturizing lubricant may be selected from any one or more of polydimethylsiloxane, phenyl-trimethicone, and diphenylsiloxyphenyl-trimethicone.

In the embodiment of the present application, the polymeric humectant may be selected from any one or more of sodium hyaluronate, dextran, and polyglutamic acid.

In an embodiment of the present application, the ceramide may be ceramide 3.

Optionally, the ceramide can be an encapsulated ceramide, preferably a ceramide encapsulated by shea butter, but the amount of shea butter used is not critical.

In the examples of the present application, the polyglycerin-based emulsifier may be selected from any one or more of polyglycerin-10 fatty acid ester, polyglycerin-6 distearate and polyglycerin-2 isostearate.

Optionally, the polyglycerin-10 fatty acid ester may be selected from any one or more of polyglycerin-10 laurate, polyglycerin-10 stearate, polyglycerin-10 distearate, polyglycerin-10 isostearate and polyglycerin-10 myristate.

In an embodiment of the present application, the bath emollient cream may further include tocopherol acetate, and the content of the tocopherol acetate in the bath emollient cream may be 0.1% to 0.6% by weight.

In an embodiment of the application, the bath skin cream may further include any one or more of a plant extract moisturizer, a third polyethylene glycol, a preservative, hydrogenated phosphatidylcholine and a perfume, wherein the molecular weight of the third polyethylene glycol is 100000-1000000.

In an embodiment of the present application, the plant extract moisturizer may be selected from any one or more of stem extract of dendrobium nobile lindl, root extract of sophora flavescens ait, root extract of echinacea purpurea, fruit extract of lycium barbarum, leaf extract of aloe barbadensis, leaf extract of rosemary, flower extract of chamomile, root extract of glycyrrhiza glabra, tea extract, root extract of polygonum cuspidatum, extract of centella asiatica, and root extract of scutellaria baicalensis.

In an embodiment of the present application, the third polyethylene glycol may be selected from any one or more of polyethylene glycol-14M (average molecular weight of 600000), polyethylene glycol-7M (average molecular weight of 300000), and polyethylene glycol-20M (average molecular weight of 850000).

In embodiments herein, the preservative may be selected from any one or more of phenoxyethanol, methylparaben, propylparaben, and imidazolidinyl urea.

In the examples of the application, the following components are contained in the bath cream by weight:

it should be understood that the first polyethylene glycol, the second polyethylene glycol, the grease-based moisturizing agent, the water-soluble silicone wax, the polyhydric alcohol, the silicone-based moisturizing lubricant, the polymer-based moisturizing agent, the polyglycerol-based emulsifier and the third polyethylene glycol listed in the application can be interchanged at will, and the effect of the prepared bath moisturizing cream is similar.

In an embodiment of the present application, the bath cream may include, by weight:

optionally, the bath skin cream may include, by weight:

the effects of part of the components adopted in the bath skin cream are as follows:

hydrogenated lecithin: lecithin, a constituent of lecithin, is a constituent of cell membranes. Phospholipid is active ingredient of all biological cells, can maintain normal water balance of skin, prevent desquamation, reduce stimulation of surfactant, and reduce allergy probability. Hydrogenated lecithin functions almost as well as phospholipids. The lecithin has good adaptability and permeability to the skin, and can increase the softness of the skin, thicken the stratum corneum and repair the barrier function of the skin; and simultaneously, the product forms a liquid crystal structure.

Ceramide: ceramides (ceramides) are phospholipids composed of long-chain bases of sphingosine and fatty acids, mainly including Ceramide phosphorylcholine and Ceramide phosphorylethanolamine, and are the main components of cell membranes, playing an important role in maintaining the moisture balance of the stratum corneum. Ceramides have a strong ability to associate with water molecules, and they maintain skin moisture by forming a network in the stratum corneum.

The polymer humectant can improve the moisturizing performance of the bath moisturizer. The sodium hyaluronate is an acidic mucopolysaccharide which naturally exists in corneal epithelium and can absorb 1000 times of moisture of the corneal epithelium so as to keep the moisture of the skin, prevent the moisture from losing through the epidermis, repair the barrier when the skin is damaged, prevent the skin from feeling dry and increase the luster after being used, improve the skin nutrition metabolism, make the skin soft and smooth, remove wrinkles, increase the elasticity and prevent aging, and is a good transdermal absorption promoter while keeping the moisture. When the nutritional powder is used in combination with other nutritional ingredients, the nutritional powder can play a more ideal role in promoting the absorption of other nutritional ingredients.

The oil and fat skin moistening agent can improve the moisture retention performance of the bath skin moistening cream and moisten the skin. The petrolatum is also called vaseline, is mainly chemically inert hydrocarbon, is not hydrophilic and can not be absorbed, a film can be formed on the surface of the skin after being washed, so that moisture is not easy to evaporate and dissipate, the skin can be kept in a moist state, and bacteria in the air can be prevented from contacting the skin.

The water-soluble silicon wax can improve the moisturizing performance of the bath skin cream and increase the moistening feeling, the lubricating property and the luster of the skin. Wherein, the di-PEG-18 methyl ether dimethyl silane is a branched alkyl organosilicon glycol copolymer wax, has lower melting point, good skin affinity, moisture retention, less sticky feeling, and increased skin moistening feeling, lubricity and luster.

Tocopherol acetate: belongs to vitamin E derivatives, has good antioxidant effect, is an oil-soluble natural substance, is a good nutritional moistening agent for skin, can make the skin feel soft, keep the skin moisture, promote wound healing, prevent inflammation and prevent skin from being rough and chapped.

The application also provides a preparation method of the bath skin cream with high moisturizing effect, which comprises the following steps:

(1) adding polyalcohol, hydrogenated lecithin and polyglycerol emulsifier into an oil phase pot, and stirring at a first set speed and a first set temperature to form ordered arrangement of the hydrogenated lecithin and the polyglycerol emulsifier;

(2) slowly adding an oil and fat moisturizing agent, a silicone moisturizing lubricant and dimethiconol under stirring to form a liquid crystal oil-in-liquid microstructure to obtain a liquid crystal phase A;

(3) adding the first polyethylene glycol, the high-molecular humectant and optionally the second polyethylene glycol and the third polyethylene glycol into a water phase pot, and stirring at a second set speed and a second set temperature to obtain a water phase B;

(4) sequentially adding the water phase B and the liquid crystal phase A into an emulsifying pot, homogenizing, keeping the temperature, controlling the stirring speed within a third set speed range, and cooling;

(5) when the temperature is reduced to a third set temperature, adding water-soluble silicon wax, stirring uniformly, and continuously reducing the temperature;

(6) when the temperature is reduced to a fourth set temperature, adding ceramide and optionally a preservative, hydrogenated phosphatidylcholine, tocopheryl acetate, a plant extract humectant and essence, and uniformly stirring; discharging and filling.

In an embodiment of the present application, the first set speed may be 120rpm to 200rpm, and the first set temperature may be 70 ℃ to 75 ℃.

In an embodiment of the present application, the second set speed may be 500rpm to 800rpm, and the second set temperature may be 70 ℃ to 75 ℃.

In an embodiment of the present application, the third set temperature may be 60 ℃ to 65 ℃ and the fourth set temperature may be 50 ℃ to 55 ℃.

In the embodiment of the present application, the time for homogenizing in step (4) may be 5min to 8min, the time for maintaining the temperature may be 25min to 35min, and the third set speed may be 300rpm to 500 rpm.

The skin cream for bath has the advantages of high moisturizing effect, long service life and stable performance. In particular, the amount of the solvent to be used,

1. the liquid crystal structure is formed by adding hydrogenated lecithin or by adding hydrogenated lecithin and a polyglycerol-based emulsifier (e.g., polyglycerol-10 stearate) together. Liquid crystal is an intermediate phase between "liquid" and "solid", liquid is a phase state with very good fluidity and continuity, and crystal is an anisotropic, birefringent phase state, and the phase state between them is called "liquid crystal"; the liquid crystal structure has the following advantages:

(1) stronger moisturizing performance: in the process of forming the layered arrangement, bound water which is not easy to volatilize exists between the hydrophilic group and the hydrophilic group, and the bound water improves the moisture retention of the product;

(2) promoting penetration of active ingredients: has better affinity with the skin, thereby promoting the active ingredients to permeate into the skin and obtaining better skin care effect;

(3) the slow release of the effective components can be controlled, so that the service life can be prolonged;

(4) excellent stability;

2. by adding the oil-based moisturizing agent (such as petrolatum), the moisturizing effect is improved: taking petrolatum as an example, the petrolatum lotion is not hydrophilic and can not be absorbed, so that a film can be formed on the surface of the skin after the cream for bath is sprayed on the body of a user, the moisture is not easy to evaporate and dissipate, the skin can be kept in a moist state, and bacteria in the air can be prevented from contacting the skin;

3. by adding the silicone moisturizing lubricant (such as polydimethylsiloxane) and the dimethiconol, the moisturizing effect is improved: the silicone moisturizing lubricant and the dimethiconol are not hydrophilic, so that the bath skin cream can form a layer of uniform waterproof protective film on the surface of the skin after being sprayed on the body of a user, the moisture is not easy to evaporate and dissipate, no sticky or greasy feeling exists, and the bath skin cream has good antistatic performance and good air permeability;

4. when a plurality of polyethylene glycols with different molecular weights are added, the bath skin cream has a certain dissolution rate at different temperatures, and the moisturizing effect is better than that of polyethylene glycol with a single molecular weight;

5. the application has the advantages that no extra water is added into the skin moistening cream for bath, only a very small amount of water is introduced through other raw materials, so that the solid content of the skin moistening cream is improved, the dissolving speed of the skin moistening cream can be reduced, and the service life of the skin moistening cream is prolonged.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. Other advantages of the present application may be realized and attained by the instrumentalities and combinations particularly pointed out in the specification and the drawings.

Drawings

The accompanying drawings are included to provide an understanding of the present disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the examples serve to explain the principles of the disclosure and not to limit the disclosure.

FIG. 1 is a scanned view of the lamellar liquid crystal structure of the skin cream for bath according to example 3 of the present application;

FIG. 2 is a graph showing the comparison of the moisturizing effects of the bath skin cream of examples and comparative examples;

FIG. 3 is a comparison of the skin hydration of volunteers before and after applying the skin cream for bath according to example 3 of the present application.

Detailed Description

To make the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

The raw materials and reagents used in the following examples are all common commercial products unless otherwise specified.

The contents of the components given in the present application refer to the contents of pure components in the bath cream, which have been converted to the contents of pure components if the commercially available products are not pure substances. In the present application, the content of the components other than the hydrogenated phosphatidylcholine is defined to mean the content of the components actively added to the skin cream for bath, and does not include the content of the components substituted by the content of other raw materials, and the content of the hydrogenated phosphatidylcholine includes the content of the components actively added and substituted with other raw materials.

Examples 1 to 6

The formulations of the bath skin cream of examples 1 to 6 are shown in Table 1.

TABLE 1

Note: it is understood that when commercially available raw materials are selected to prepare the bath skin cream of the present examples, some substances may be inevitably introduced, and butylated hydroxytoluene, ethylhexylglycerin, caprylic/capric triglyceride, hydrogenated phosphatidylcholine, 1, 2-pentanediol, glycerin, squalane, and water in tables 1 to 3 are introduced into the bath skin cream of the present examples because they are present in the purchased raw materials, wherein the hydrogenated phosphatidylcholine has a moisturizing effect and may be actively added to the bath skin cream of the present examples in addition to the introduction into the raw materials; in addition, some of the components in Table 1 may be introduced in the form of a mixture, for example, a mixture No. 7, which is commercially available, a mixture No. 15 obtained by mixing plant extracts together in advance before use; the ceramide 3 is ceramide 3 wrapped by shea butter; the content in parentheses after the name of each component indicates the weight content of each component in the mixture in which it is present, for example, the mixture of number 4 consists of 99.94% by weight of bis-PEG-18 methylether dimethylsilane and 0.06% by weight of butylated hydroxytoluene.

(1) Adding 50 wt% of mixture (consisting of water, glycerol, stem extract of dendrobium nobile lindl, root extract of sophora flavescens ait, root extract of echinacea purpurea, fruit extract of lycium barbarum, leaf extract of aloe barbadensis, phenoxyethanol and ethylhexyl glycerol) with serial number 15, butanediol, polyglycerol-10 stearate and hydrogenated lecithin into an oil phase pot, controlling the stirring speed between 120rpm and 200rpm and the temperature between 70 ℃ and 75 ℃ to ensure that the polyglycerol-10 stearate and the hydrogenated lecithin form ordered arrangement under higher concentration;

(2) slowly adding petrolatum and a mixture of No. 7 (composed of polydimethylsiloxane and dimethiconol) under stirring to form a microstructure of liquid crystal oil-in-liquid to obtain a liquid crystal phase A;

(3) adding polyethylene glycol-180, polyethylene glycol-90, polyethylene glycol-14M and sodium hyaluronate into a water phase pot, controlling the stirring speed between 500rpm and 800rpm and the temperature between 70 ℃ and 75 ℃ to obtain a water phase B;

(4) pumping the water phase B into an emulsifying pot, pumping the liquid crystal phase A into the emulsifying pot, homogenizing for 5min, keeping the temperature for 30min, controlling the stirring speed between 300rpm and 500rpm, and cooling;

(5) when the temperature is reduced to 60 ℃, adding bis-PEG-18 methyl ether dimethylsilane (a commercial product with the serial number 4), uniformly stirring, and continuously reducing the temperature;

(6) when the temperature is reduced to 50 ℃, adding a mixture (consisting of phenoxyethanol and ethylhexyl glycerol) with the number 11, a mixture (consisting of caprylic/capric triglyceride, hydrogenated phosphatidylcholine, 1, 2-pentanediol, glycerol, squalane, shea butter, ceramide 3 and water) with the number 12, tocopherol acetate, the rest 50 wt% of mixture with the number 15 and (daily) essence, and uniformly stirring; discharging and filling.

Comparative example 1

The formulation of the skin cream for bath of comparative example 1 is shown in table 2 (containing no petrolatum).

TABLE 2

(2) slowly adding the mixture (composed of polydimethylsiloxane and dimethiconol) of the number 7 under stirring to form a microstructure of the liquid crystal oil-in-liquid crystal, and obtaining a liquid crystal phase A;

(3) adding polyethylene glycol-180, second polyethylene glycol-90, polyethylene glycol-14M and sodium hyaluronate into a water phase pot, controlling the stirring speed between 500rpm and 800rpm and the temperature between 70 ℃ and 75 ℃ to obtain a water phase B;

Comparative example 2

The formulation of the skin cream for bath of comparative example 2 is shown in table 3 (containing no hydrogenated lecithin).

TABLE 3

(1) Adding 50 wt% of mixture (consisting of water, glycerol, stem extract of dendrobium nobile lindl, root extract of sophora flavescens ait, root extract of echinacea purpurea, fruit extract of lycium barbarum, leaf extract of aloe barbadensis, phenoxyethanol and ethylhexylglycerin) with number 15, butanediol and polyglycerol-10 stearate into an oil phase pot, controlling the stirring speed between 120rpm and 200rpm and the temperature between 70 ℃ and 75 ℃ to ensure that the polyglycerol-10 stearate forms an ordered arrangement at a higher concentration;

Performance testing

1. The skin cream for bath of example 3 of the present application was observed with a polarizing microscope, and as shown in fig. 1, it was found to have a lamellar liquid crystal structure.

2. 70 volunteers aged 18-48 years were recruited and divided into 7 groups of 10 persons each, and before the test, the moisture content of the left and right cheeks, the moisture content of the arms, the moisture content of the abdomen and the moisture content of the legs of the volunteers were respectively tested by a multifunctional skin tester MPA4 of CK company, and the average values were taken;

letting volunteers take a normal bath, adding the skin moistening cream for bath prepared in examples 1-6 and comparative examples 1-2 into a beauty shower head, and washing for 1 min;

wiping off body surface water, respectively testing water content of left and right cheeks, arm water content, abdomen water content and leg water content of volunteers with a multifunctional skin tester MPA4 of CK company after 5min and 2h, and averaging;

after the body surface moisture was wiped off for 5 minutes and 2 hours, the water content of the left and right cheeks, the arm water content, and the abdomen and leg water content of the volunteers were measured using a multifunctional skin tester MPA4 from CK, respectively, and averaged.

The relative humidity of the environment is controlled to be (30 +/-5%) and the temperature is controlled to be (25 +/-1 ℃) in the process of measuring the moisture content of the skin.

In the bathing process, the water temperature is controlled within the range of 38-42 ℃, and the water pressure is controlled within the range of 0.1-0.3 MPa.

The test results are shown in fig. 2 and table 4. Wherein the comparison of the skin moisture of the volunteers before and after applying the skin moisturizing cream for bath of example 3 of the present application is shown in FIG. 3.

TABLE 4

It can be seen that the skin moisture content of the volunteers after the application of the skin moisturizing cream of the embodiment of the application is significantly higher than that of the volunteers after the application of the product of the comparative example, and the skin moisture content of the volunteers after the application of the skin moisturizing cream of the embodiment of the application is significantly slower in the time of 5min to 2h after bathing, which shows that the moisturizing and moisturizing effects of the skin moisturizing cream of the embodiment of the application are significantly better.

The skin cream for bath prepared in the examples and comparative examples of the present application was used once a day by a volunteer, washed for 1min each time, continuously used for 4 weeks, and before and after use, the water content of the left and right cheeks, the water content of the arms, the water content of the abdomen, and the water content of the legs of the volunteer were measured respectively by using a multifunctional skin tester MPA4 of CK corporation, and the average values were taken. The test results are shown in table 5.

TABLE 5

	Number of people	Moisture content (%)	Moisture content after use (%)
				Example 1	10	29.4％	53％
Example 2	10	31％	53％
				Example 3	10	31.6％	68％
Example 4	10	30.2％	55％
				Example 5	10	28.8％	52％
Example 6	10	29.1％	49％
				Comparative example 1	10	29.3％	42％
Comparative example 2	10	28.9％	30％

As can be seen from tables 4 to 5 and fig. 2 to 3, the bath cream of the examples of the present application can significantly increase the moisture content of the skin of the user, and the moisturizing effect is significantly superior to that of the comparative example.

The overall sensory evaluation of the skin cream for bath prepared in example 3 by the volunteers is shown in table 6.

TABLE 6

It can be seen that most of the volunteers were satisfied with the appearance, taste, moisturizing effect, nourishing effect and sensitization of the bath cream prepared in example 3 of the present application.

In addition, through tests, the appearance, taste, moisturizing effect, nourishing effect and sensitization of the skin cream for bath prepared by replacing each component in table 1 with the first polyethylene glycol, the second polyethylene glycol, the oil-and-fat-based skin moisturizing agent, the water-soluble silicone wax, the polyhydric alcohol, the silicone-based moisturizing lubricant, the polymer-based moisturizing agent, the polyglycerol-based emulsifier and the third polyethylene glycol listed in the present application except table 1 are similar to those of the skin cream for bath prepared in examples 1 to 6 of the present application, and specific experimental data are not listed one by one.

The water temperature is controlled within the range of 38-42 ℃, the water pressure is controlled within the range of 0.1-0.3 MPa, one 15g of bath cream prepared in the embodiment of the application can be used for 6 hours, and the existing cream can be used for 4 hours, so that the bath cream in the embodiment of the application has longer service life.

Although the embodiments disclosed in the present application are described above, the descriptions are only for the convenience of understanding the present application, and are not intended to limit the present application. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims.

Claims

1. A skin cream for bath with high moisturizing effect comprises the following components in parts by weight: 25 to 48 percent of first polyethylene glycol, 10 to 15 percent of grease skin moisturizing agent, 10 to 18 percent of water-soluble silicon wax, 5 to 8 percent of polyol, 2.61 to 5.22 percent of silicone moisturizing lubricant, 0.39 to 0.78 percent of dimethiconol, 0.85 to 2 percent of hydrogenated lecithin and 0.01 to 0.08 percent of macromolecule moisturizing agent, 0.015% -0.045% of ceramide, 1% -3% of polyglycerol emulsifier, 0.01% -0.03% of hydrogenated phosphatidylcholine, 0.1% -0.6% of tocopherol acetate, 0.003% -0.12% of dendrobium stem extract, 0.0015% -0.06% of sophora alopecuroides root extract, 0.0015% -0.06% of echinacea purpurea root extract, 0.001% -0.04% of lycium barbarum fruit extract and 0.0005% -0.02% of aloe barbadensis leaf extract, wherein the average molecular weight of the first polyethylene glycol is 4400-10000;

the polyhydric alcohol is selected from any one or more of butanediol, glycerol, 1, 2-propylene glycol, 1, 3-propylene glycol, methyl propylene glycol and dipropylene glycol.

2. The skin cream for bath according to claim 1, further comprising a second polyethylene glycol, wherein the average molecular weight of the second polyethylene glycol is 1350-.

3. The bath cream according to claim 2, wherein the first polyethylene glycol is selected from any one or more of polyethylene glycol-180, polyethylene glycol-150 and polyethylene glycol-200, and the second polyethylene glycol is selected from any one or more of polyethylene glycol-90, polyethylene glycol-75 and polyethylene glycol-100.

4. The bath cream according to any one of claims 1 to 3, wherein the oil-based moisturizer is selected from any one or more of petrolatum, vegetable oil, and synthetic oil.

5. The bath cream according to claim 4,

the water-soluble silicon wax is selected from one or more of bis-PEG-18 methyl ether dimethylsilane, bis-PEG-15 methyl ether polydimethylsiloxane and bis-PEG-12 polydimethylsiloxane beeswax;

the silicone moisturizing lubricant is selected from one or more of polydimethylsiloxane, phenyl polytrimethylsiloxane and diphenyl siloxy phenyl polytrimethylsiloxane;

the polymer humectant is selected from one or more of sodium hyaluronate, glucan and polyglutamic acid;

the ceramide is ceramide 3;

the polyglycerol emulsifier is one or more selected from polyglycerol-10 fatty acid ester, polyglycerol-6 distearate and polyglycerol-2 isostearate.

6. The bath cream according to claim 5, wherein the ceramide is encapsulated ceramide 3.

7. The bath cream according to claim 5, wherein the polyglycerin-10 fatty acid ester is one or more selected from the group consisting of polyglycerin-10 laurate, polyglycerin-10 stearate, polyglycerin-10 distearate, polyglycerin-10 isostearate and polyglycerin-10 myristate.

8. The bath cream according to claim 2 or 3, further comprising any one or more of a third polyethylene glycol having a molecular weight of 100000-1000000, a preservative and a perfume.

9. The bath cream according to claim 8,

the third polyethylene glycol is selected from any one or more of polyethylene glycol-14M, polyethylene glycol-7M and polyethylene glycol-20M;

the preservative is selected from any one or more of phenoxyethanol, methyl hydroxybenzoate, propyl hydroxybenzoate and imidazolidinyl urea.

10. The bath cream according to claim 8, wherein the following components are contained in the bath cream by weight:

0.5 to 1.2 percent of third polyethylene glycol

0.9 to 1 percent of preservative

8 to 12 percent of essence.