Inverse emulsion cosmetic and method for preparing the same

Abstract

The application relates to the field of cosmetics, and relates to a phase inversion emulsified cosmetic and a preparation method thereof. The cosmetic comprises: 1-20% of oil; 0.1-3% of an emulsifier, the emulsifier comprising at least one of a C14-22 alcohol and C12-20 alkyl glucoside mixture and methyl glucose sesqui-stearate; and an aqueous phase material. The aqueous phase material comprises a thickening agent, the thickening agent comprising polyacryloyl dimethyl sodium taurate, and the content of the thickening agent in the phase inversion emulsified cosmetic is less than or equal to 0.5%. By selecting specific emulsifiers and thickening agents for compounding, the PIT is adjusted to the range of (60-100) DEG C. For O / W emulsion, the emulsion W / O is prepared at a temperature higher than the PIT, and in the process of cooling to room temperature, only a small amount of mechanical energy is needed, and through temperature-induced phase inversion, the oil phase can be broken into small droplets, and the phase inversion is O / W cream; and the efficacy components are better absorbed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cosmetics, in particular, to a phase inversion emulsified cosmetic and a preparation method thereof. BACKGROUND

[0002] With the increasing demand for skin care, people have higher requirements for cosmetics, especially whether the cosmetics can be easily absorbed by the skin. SUMMARY

[0003] The purpose of the embodiments of the present application is to provide a phase inversion emulsified cosmetic and a preparation method thereof.

[0004] In a first aspect, the present application provides a phase inversion emulsified cosmetic, which comprises, in mass percentage:

[0005] 1-20% of oil;

[0006] 0.1-3% of emulsifier, the emulsifier comprising at least one of C14-22 alcohol and C12-20 alkyl glucoside mixture, methyl glucoside sesqui-stearate; and

[0007] a balance of water phase material; wherein the water phase material comprises a thickening agent, the thickening agent comprising polyacryloyl dimethyl sodium taurate, and the content of the thickening agent in the phase inversion emulsified cosmetic is less than or equal to 0.5%.

[0008] The above technical solution can adjust the PIT in the range of (60-100)℃ by selecting specific emulsifiers and thickening agents for compounding. Such PIT range is beneficial to the absorption of the efficacy ingredients by the skin.

[0009] The cosmetic prepared by the present application has a dosage form of emulsion, and the cream has finer particles, higher stability than the cream prepared by ordinary emulsion process, and can be better absorbed by the skin, and the obtained product has better efficacy. In addition, the PIT phase inversion process is simple, the cost is low, and is suitable for industrial production.

[0010] In other embodiments of the present application, the above-mentioned phase inversion emulsified cosmetic comprises, in mass percentage:

[0011] 10-15% of oil;

[0012] 0.5% to 2.5% emulsifiers, the emulsifiers including at least one of a mixture of C14-22 alcohols and C12-20 alkyl glucoside, methyl glucose sesquistearate; and

[0013] a balance of an aqueous phase material; wherein the aqueous phase material includes a thickening agent; the thickening agent is included in the phase transfer emulsion cosmetic in an amount of 0.1% to 0.5% by weight.

[0014] In other embodiments of the present application, the oil includes at least one of jojoba seed oil, squalane, shea butter, batyl alcohol, or dimethicone.

[0015] In other embodiments of the present application, the oil includes a first oil and a second oil; the first oil includes a vegetable oil; the second oil includes a silicone oil.

[0016] In other embodiments of the present application, the first oil includes at least one of jojoba seed oil, squalane, shea butter, batyl alcohol, or dimethicone; and the second oil is caprylic / capric triglyceride.

[0017] In other embodiments of the present application, when the oil includes a first oil and a second oil, the second oil is included in the oil in an amount of less than 50% by weight.

[0018] In other embodiments of the present application, the thickening agent is sodium polyacryloyldimethyl taurate.

[0019] In other embodiments of the present application, the emulsifiers do not include a mixture of glyceryl stearate and PEG-100 stearate, sucrose stearate, polyglyceryl-3 methyl glucose distearate; or a mixture of sodium stearoyl lactylate, glyceryl stearate, and cetearyl alcohol.

[0020] In other embodiments of the present application, the phase transfer emulsion cosmetic is in the form of a cream.

[0021] In a second aspect, the present application provides a method of preparing a phase transfer emulsion cosmetic, including:

[0022] heating and mixing the aqueous phase material to obtain an aqueous phase mixture;

[0023] heating and mixing the oil and the emulsifiers to obtain an oil phase mixture;

[0024] adding a portion of the aqueous phase mixture to the oil phase mixture and stirring; then adding the remaining aqueous phase mixture and homogenizing to obtain a water / oil mixture;

[0025] cooling the water / oil mixture to cause phase inversion. DETAILED DESCRIPTION

[0026] So that the purposes, technical solutions and advantages of the embodiments of the present application are more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments of the present application.

[0027] Therefore, the following detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application.

[0028] By changing the temperature, adjusting the production process and the like, the process of changing the continuous phase of the emulsion / cream from the oil phase (water phase) to the water phase (oil phase) is called phase inversion emulsification. According to the conditions of phase inversion, the phase inversion emulsification is divided into PIT emulsification and EIP emulsification.

[0029] PIT is the temperature at which the lipophilic degree of the lipophilic group of the nonionic surfactant is equal to the hydrophilic degree of the hydrophilic group, so that the average value of the interfacial tension is zero, making the breaking and aggregation of droplets very easy. The interfacial tension near PIT is more favorable to breaking than to aggregation. When the temperature rises to the phase inversion temperature, the interfacial tension of the system is the lowest, and droplets with the smallest particle size can be formed, and the three-phase coexistence state of oil phase, water phase and surfactant appears. In this region, very fine emulsion particles can be obtained by stirring and cooling.

[0030] EIP method is Emulsion Inversion Point method, which refers to the transition point of emulsion from W / O type to O / W type. Generally, the emulsion transition point is expressed by the volume (mL) of water added per milliliter of oil when phase inversion occurs. Therefore, EIP is a concept related to volume fraction. In this emulsification process, the water phase droplets are added to the oil phase containing surfactants. Initially, due to the low volume fraction of water, the interfacial film composed of high HLB surfactants is not sufficient to maintain its bending rigidity and maintains its natural curvature (bending towards oil), forming a W / O system. When the volume fraction of water reaches the phase inversion point, the two forces suddenly invert into an O / W system.

[0031] The present application provides a phase inversion emulsified cosmetic, which comprises, by mass percentage:

[0032] 1% to 20% of oil and fat;

[0033] 0.1% to 3% of emulsifier, the emulsifier comprising at least one of C14-22 alcohol and C12-20 alkyl glucoside mixture, and methyl glucosido-hydrogenated stearate; and

[0034] a balance of aqueous phase material; wherein the aqueous phase material comprises: a thickening agent; the thickening agent comprises: sodium polyacryloyldimethyl taurate; the thickening agent is present in the phase inversion emulsion cosmetic in an amount of less than or equal to 0.5%.

[0035] The above technical solution, by selecting specific emulsifiers and thickening agents for compounding, can adjust the PIT in the range of (60-100) ℃. Such PIT range, for O / W emulsion, at a temperature higher than the PIT, the emulsion W / O is prepared, during cooling to room temperature (at a temperature lower than the PIT), only a small amount of mechanical energy is needed, through temperature-induced phase inversion, the oil phase can be broken into small droplets, and the phase inversion is O / W cream; thereby facilitating the better absorption of the skin by the efficacy ingredients.

[0036] The cosmetic prepared by the present application has a dosage form of emulsion body. The cream body not only has finer particles, but also has higher stability than the cream body prepared by ordinary emulsion process, and can be better absorbed by the skin, and the obtained product has better efficacy. In addition, the PIT phase inversion process is simple, the cost is low, and is suitable for industrial production.

[0037] Exemplarily, in some embodiments of the present application, the above-mentioned phase inversion emulsion cosmetic comprises, in mass percentage:

[0038] 1%, 2%, 3%, 5%, 8%, 10%, 12%, 15%, 18%, 20%, or a range between any two of the foregoing values, of oil;

[0039] 0.1%, 0.2%, 0.5%, 0.8%, 1%, 1.2%, 1.5%, 1.8%, 2%, 2.2%, 2.5%, 2.8%, 3%, or a range between any two of the foregoing values, of emulsifier.

[0040] Further, in some embodiments of the present application, the phase inversion emulsion cosmetic comprises, in mass percentage:

[0041] 10%-15% of oil;

[0042] 0.5%-2.5% of emulsifier, the emulsifier comprising: at least one of C14-22 alcohol and C12-20 alkyl glucoside mixture, and methyl glucosido-hydrogenated stearate; and

[0043] a balance of aqueous phase material; wherein the aqueous phase material comprises: a thickening agent; the thickening agent is present in the phase inversion emulsion cosmetic in an amount of 0.1%-0.5%.

[0044] In the above technical solution, by further limiting the content of the oil, the emulsifier and the thickening agent in the phase inversion emulsified cosmetic within the above range, it is further beneficial to obtain a cream cosmetic with smaller particle size, and it is more beneficial to skin absorption.

[0045] For example, in some embodiments of the present application, the phase inversion emulsified cosmetic comprises, in mass percentage:

[0046] 10%, 11%, 12%, 13%, 14%, 15%, or a range between any two of the foregoing, of the oil;

[0047] 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0%, 1.1%, 1.2%, 1.3%, 1.5%, 1.8%, 2%, 2.3%, 2.5%, or a range between any two of the foregoing, of the emulsifier;

[0048] 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, or a range between any two of the foregoing, of the thickening agent.

[0049] Further, in some embodiments of the present application, the oil comprises at least one of jojoba seed oil, squalane, shea butter, batyl alcohol, or dimethicone.

[0050] For example, in some embodiments of the present application, the oil is any one of jojoba seed oil, squalane, shea butter, batyl alcohol, or dimethicone; or, in some embodiments of the present application, the oil is a mixture of jojoba seed oil and squalane; or, in some embodiments of the present application, the oil is a mixture of shea butter, batyl alcohol, and dimethicone.

[0051] Further, in some embodiments of the present application, the oil comprises a first oil and a second oil; the first oil comprises a plant oil; and the second oil comprises a silicon oil.

[0052] Further, in some embodiments of the present application, the first oil comprises at least one of jojoba seed oil, squalane, shea butter, batyl alcohol, or dimethicone.

[0053] Further optionally, in some embodiments of the present application, the second oil is caprylic / capric triglyceride.

[0054] Exemplarily, in some embodiments of the present application, the oil and fat is any one of jojoba seed oil, squalane, shea butter, batyl alcohol or dimethicone; is compounded with caprylic / capric triglyceride; or any two of jojoba seed oil, squalane, shea butter, batyl alcohol or dimethicone; is compounded with caprylic / capric triglyceride.

[0055] Further, in some embodiments of the present application, when the oil and fat comprises a first oil and fat and a second oil and fat, the mass percentage of the second oil and fat in the oil and fat is less than 50%.

[0056] Exemplarily, in some embodiments of the present application, when the oil and fat comprises a first oil and fat and a second oil and fat, the mass percentage of the second oil and fat in the oil and fat is 10% to 45%; the mass percentage of the first oil and fat in the oil and fat is 55% to 90%; or the mass percentage of the second oil and fat in the oil and fat is 20% to 40%; the mass percentage of the first oil and fat in the oil and fat is 60% to 80%. Exemplarily, in some embodiments of the present application, when the oil and fat comprises a first oil and fat and a second oil and fat, the mass percentage of the second oil and fat in the oil and fat is 10%, 20%, 25%, 30%, 40%, 45% or a value within a range between any two of the foregoing values; the mass percentage of the first oil and fat in the oil and fat is 55%, 60%, 70%, 75%, 80%, 90% or a value within a range between any two of the foregoing values.

[0057] Further, in some embodiments of the present application, the thickening agent is sodium polyacryloyldimethyltaurate.

[0058] In the above technical solution, by selecting the thickening agent as sodium polyacryloyldimethyltaurate, the phase inversion emulsion cosmetic of the cream-like emulsion body can be effectively obtained.

[0059] Optionally, in some embodiments of the present application, the emulsifier does not contain a mixture of glyceryl stearate and PEG-100 stearate, sucrose stearate, polyglyceryl-3 methylglucose distearate; or a mixture of sodium stearoyl lactylate, glyceryl stearate and cetylstearyl alcohol.

[0060] Further, in some embodiments of the present application, the dosage form of the phase inversion emulsion cosmetic is a cream-like emulsion body.

[0061] Some embodiments of the present application provide a preparation method of a phase inversion emulsion cosmetic, comprising:

[0062] heating and mixing the water phase materials to obtain a water phase mixture;

[0063] heating and mixing the oil and fat and the emulsifier to obtain an oil phase mixture;

[0064] First, part of the water phase mixture is added to the oil phase mixture, and stirred; then the remaining water phase mixture is added, and homogenized to obtain a water-oil mixture;

[0065] The water-oil mixture is cooled to cause phase inversion.

[0066] In the above technical solution, by selecting appropriate emulsifiers and oils, the PIT can be adjusted to the range of (60-100) °C. Such a PIT range, for O / W emulsions, at a temperature higher than the PIT, the emulsion W / O is prepared, and during cooling to room temperature (at a temperature lower than the PIT), only a small amount of mechanical energy is required to break the oil phase into small droplets through temperature-induced phase inversion, and the phase is converted to O / W cream.

[0067] Further, in some embodiments of the present application, the temperature for heating and mixing the water phase material is 80-90 °C;

[0068] The temperature for heating and mixing the oil and emulsifier is 80-85 °C;

[0069] The water-oil mixture is cooled, including: when the temperature drops to below 60 °C, phase inversion occurs.

[0070] In the above technical solution, at the above cooling temperature, PIT phase inversion can be achieved, and during cooling to room temperature, only a small amount of mechanical energy is required to break the oil phase into small droplets through temperature-induced phase inversion.

[0071] Exemplarily, the temperature for heating and mixing the water phase material is 80 °C, 81 °C, 82 °C, 83 °C, 84 °C, 85 °C, 86 °C, 87 °C, 88 °C, 89 °C, or 90 °C;

[0072] The temperature for heating and mixing the oil and emulsifier is 80 °C, 81 °C, 82 °C, 83 °C, 84 °C, or 85 °C;

[0073] The water-oil mixture is cooled, including: when the temperature drops to 60 °C, 55 °C, 50 °C, 45 °C, or 40 °C, phase inversion occurs.

[0074] Exemplarily, in some embodiments of the present application, the eye cream prepared by the PIT phase inversion emulsification technology includes the following raw materials and steps:

[0075] (1) Heating of the water phase material: first, add water to the water phase pot, start stirring at a stirring speed of 60 rpm / min, then add other water phase raw materials, including polyols, disodium EDTA, thickening agents, allantoin, etc., stir evenly, and heat to 80-90 °C, and keep for 10-15 min.

[0076] (2) Oil phase raw material heating: add oil phase raw material into oil phase pot, including emulsifier, humectant, emollient, etc., start stirring at 50 rpm, heat to 80-85°C, standby.

[0077] (3) Homogeneous emulsification: filter 3 / 4 water phase pot raw material through filter screen, then pump into emulsification pot, start stirring at 60 rpm / min, slowly pump in oil phase pot raw material obtained in step (2), finally pump in the remaining 1 / 4 water phase pot raw material, start homogenization at 3000 rpm / min, homogenization time 5-10 min, vacuum- (0.03-0.05) Mpa.

[0078] (4) Cooling: start cooling water, cool to 45-50°C, keep vacuum, stir evenly.

[0079] (5) Discharge: take the material in (4), filter and discharge after passing inspection.

[0080] In step (4), phase inversion occurs when the temperature drops below 60°C.

[0081] The cosmetic prepared in the present application has a dosage form of emulsion body. The cream body not only has finer particles, but also has higher stability than the cream body prepared by ordinary emulsion process, and can be better absorbed by the skin, and the obtained product has better efficacy. In addition, the PIT phase inversion process is simple, the cost is low, and is suitable for industrial production.

[0082] The features and properties of the present application are further described in detail below in combination with examples:

[0083] Examples and comparative examples

[0084] A preparation method of a cosmetic is provided, and the compositions of various examples and comparative examples are shown in Tables 1-3.

[0085] The preparation process is as follows:

[0086] (1) Water phase material heating: first add water into water phase pot, start stirring at 60 rpm / min, then add other water phase raw materials, stir evenly, heat to 85°C, and keep for 10 min.

[0087] (2) Oil phase raw material heating: add oil phase raw material into oil phase pot, start stirring at 50 rpm, heat to 80°C, and standby.

[0088] (3) Homogeneous emulsification: filter 3 / 4 water phase pot raw material obtained in step (1) through filter screen, then pump into emulsification pot, start stirring at 60 rpm / min, slowly pump in oil phase pot raw material obtained in step (2), finally pump in the remaining 1 / 4 water phase pot raw material, start homogenization at 3000 rpm / min, homogenization time 10 min, vacuum-0.04 Mpa.

[0089] (4) Cooling: open the cooling water, keep vacuum, continue stirring, and cool to 40℃.

[0090] (5) Discharge: take the material of (4), filter the material after passing the inspection, and obtain the eye cream paste.

[0091] Table 1

[0092]

[0093]

[0094] The compositions prepared in the above Table 1, Comparative Example 1-Comparative Example 4, do not occur phase inversion. However, Example 1 and Example 2 successfully occur phase inversion. Therefore, when the emulsifiers of Comparative Example 1-4, such as glyceryl stearate and PEG-100 stearate, sucrose stearate, polyglyceryl-3 methylglucose distearate; or sodium stearoyl lactylate, glyceryl stearate and cetylstearyl alcohol, are used, phase inversion cannot successfully occur. The phase inversion emulsion cosmetic of the present application cannot be prepared.

[0095] Table 2

[0096]

[0097]

[0098] The compositions prepared in the above Table 2, Example 3-Example 6, all occur phase inversion. Therefore, when the emulsifiers C14-22 alcohol and C12-20 alkyl glucoside mixture, methylglucose sesquistearate of the present application are used, phase inversion can effectively occur, and the phase inversion emulsion cosmetic of the present application can be prepared.

[0099] Further, compared to Example 4: other examples (Example 3, Example 5, Example 6), phase inversion is more obvious. It is indicated that the combination of "silicone oil" and "vegetable oil" is more conducive to the occurrence of phase inversion.

[0100] Table 3

[0101]

[0102]

[0103] The composition prepared in the above Table 3, Example 7, occurs phase inversion, and Comparative Example 5 does not occur phase inversion (and Comparative Example 5 does not form a cream paste). It can be seen that when the thickening agent "sodium polyacryloyldimethyltaurate" of the present application is not used in Comparative Example 5, phase inversion cannot occur.

[0104] The performance of each embodiment and comparative example is further tested.

[0105] 1. The particle size of the cream obtained from each embodiment and comparative example is tested. Comparative Example 5 does not form a cream and is not tested for particle size.

[0106] The specific cream particle size test method is as follows:

[0107] The test is performed according to ISO 13320:2009 "Particle Size Analysis - Optical Methods and Optical Sensors Method".

[0108] The test results are shown in the following table.

[0109] Table 4

[0110]

[0111]

[0112] As can be seen from the above table, the particle size of the cream of each comparative example is significantly larger than that of each embodiment. Thus, it can be shown that the cosmetic prepared by the present application has a dosage form of emulsion, and the cream has finer particles, which can be better absorbed by the skin, and the resulting product has better efficacy.

[0113] 2. The viscosity of each embodiment and comparative example is tested. Comparative Example 5 does not form a cream and is not tested for viscosity.

[0114] The specific cream viscosity test method is as follows:

[0115] A rotary viscometer is used for testing.

[0116] The test results are shown in the following table.

[0117] Table 5

[0118]

[0119]

[0120] As can be seen from the above table, the viscosity of the cream of each comparative example is significantly higher than that of each embodiment. Thus, it can be shown that the cosmetic prepared by the present application has a dosage form of emulsion, and the cream has significantly higher stability than the cream prepared by ordinary emulsion process, which is beneficial to better absorption by the skin, and the resulting product has better efficacy.

[0121] 3. Skin feel and efficacy test:

[0122] Through 60 adult female subjects aged 21-40 years old using the test product under normal circumstances, the relevant feedback of the collector on the product effect after 30 minutes and 4 hours and 28 days is collected through a questionnaire.

[0123] Test method:

[0124] Table 6

[0125]

[0126] Subject self-evaluation:

[0127] Table 7

[0128]

[0129]

[0130] Product evaluation

[0131] Questions 1-10, 12-16:

[0132] 1 point for very disagreement, 2 points for disagreement, 3 points for general, 4 points for agreement, 5 points for very agreement; the number of points ≥4 points is valid, and the acceptance degree is calculated as follows:

[0133] Acceptance degree = (number of points scored 4 + number of points scored 5) / total number of answers * 100 Question 11: Each option accounts for a percentage.

[0134] 1 point for no, 2 points for yes; the number of points = 1 point is valid, and the acceptance degree is calculated as follows:

[0135] Acceptance degree = number of points scored 1 / total number of answers * 100

[0136] Result determination:

[0137] Questions 1-10, 12-16 use binomial distribution method for statistical analysis, and the expected value of acceptance degree is set to 60% (4 points + 5 points number ratio), and 95% confidence interval is used to test the statistical significance of the survey questions; if the evaluated p value is less than 0.050, it means there is a significant difference. Question 11 uses binomial distribution method for statistical analysis, and the expected value of acceptance degree is set to 60% (1 point number ratio), and 95% confidence interval is used to test the statistical significance of the survey questions; if the evaluated p value is less than 0.050, it means there is a significant difference.

[0138] Test results:

[0139] Test results after using the product for 30 minutes

[0140] Table 8

[0141] Evaluation dimension Acceptance Difference analysis Easy to be absorbed by the skin of the eye 85.45％ Significant difference Moisturizing the skin of the eye after application 84.34％ Significant difference Helping the skin of the eye to be instantly moist 84.00％ Significant difference Improving the tightness of the skin of the eye 83.56％ Significant difference

[0142] Test results after using the test product for 4 hours:

[0143] Table 9

[0144]

[0145]

[0146] After using the test product for 28 days

[0147] Table 10

[0148]

[0149] Test conclusion:

[0150] After using the test product for 30 minutes:

[0151] ①Skin feel: After 60 subjects used the product for 30 minutes, they agreed that the product was quickly absorbed by the skin around the eyes.

[0152] ②Efficacy: After 60 subjects used the product for 30 minutes, they agreed that the product moisturized and hydrated the skin around the eyes, helped the skin around the eyes to be instantly hydrated, and helped improve the dryness of the skin around the eyes.

[0153] After using the test product for 4 hours:

[0154] ①Skin feel: After 60 subjects used the product for 4 hours, they agreed that the product was light and non-sticky.

[0155] ②Efficacy: After 60 subjects used the product for 4 hours, they agreed that the product helped to moisturize, hydrate, and improve fine lines on the skin around the eyes, and improve the stability of the skin.

[0156] After using the test product for 28 days:

[0157] ①Safety: After 60 subjects used the product for 28 days, they agreed that the product was mild and non-irritating.

[0158] ②Efficacy: After 60 subjects used the product for 28 days, they agreed that the product helped to improve the dryness, roughness, and fine lines of the skin around the eyes.

[0159] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Those skilled in the art can make various changes and modifications to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A phase inversion emulsified cosmetic, characterized by, The phase inversion emulsified cosmetic includes, in percentage by mass: 9.3%-10.3% oil; 2%-2.2% emulsifier, the emulsifier including at least one of C14-22 alcohol and C12-20 alkyl glucoside mixture, methylglucose sesquistearate; and the rest of water phase material; The water phase material includes thickening agent, the thickening agent including polyacryloyldimethyltaurinate, the content of the thickening agent in the phase inversion emulsified cosmetic is less than or equal to 0.5%, and the oil includes at least one of jojoba seed oil, squalane, shea butter, batyl alcohol or dimethicone; The emulsifier does not include the mixture of glyceryl stearate and PEG-100 stearate, sucrose stearate, polyglyceryl-3 methyl glucose distearate, or the mixture of sodium stearoyl lactylate, glyceryl stearate and cetylstearyl alcohol; The phase inversion emulsified cosmetic is prepared by heating and mixing water phase material to obtain water phase mixture; The oil and the emulsifier are heated and mixed to obtain oil phase mixture; Part of the water phase mixture is added to the oil phase mixture and stirred, and then the rest of the water phase mixture is added and homogenized to obtain water-oil mixture; The water-oil mixture is cooled to cause phase inversion; The temperature for heating and mixing the water phase material is 80-90 DEG C; The temperature for heating and mixing the oil and the emulsifier is 80-85 DEG C; The cooling of the water-oil mixture includes phase inversion when the temperature drops below 60 DEG C.

2. The phase inversion emulsified cosmetic of claim 1, wherein the content of the thickening agent in the phase inversion emulsified cosmetic is 0.1%-0.5%.

3. The phase inversion emulsified cosmetic of claim 1, wherein the dosage form of the phase inversion emulsified cosmetic is cream-like emulsion. ​ ​

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