A liquid crystal cosmetic composition comprising stearyl alcohol and cetearyl alcohol and manufacturing method thereof

KR1020260117352APending Publication Date: 2026-07-29COSMAX INC
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Patent Information

Authority / Receiving Office
KR · KR
Patent Type
Applications
Current Assignee / Owner
COSMAX INC
Filing Date
2025-01-22
Publication Date
2026-07-29

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Abstract

The present invention relates to a liquid crystal cosmetic composition comprising stearyl alcohol and cetearyl alcohol and a method for manufacturing the same, and more specifically, to a liquid crystal cosmetic composition that can contain a higher content of polyol by using stearyl alcohol and cetearyl alcohol.
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Description

Technology Field

[0001] The present invention relates to a liquid crystal cosmetic composition comprising stearyl alcohol and cetearyl alcohol and a method for manufacturing the same, and more specifically, to a liquid crystal cosmetic composition that can contain a higher content of polyol by using stearyl alcohol and cetearyl alcohol. Background Technology

[0002] Unlike conventional emulsion creams that artificially mix oil and water phases using emulsifiers, liquid crystal cream is a cream that is highly effective for improving the skin barrier and moisturizing the skin by incorporating aliphatic alcohols to form a liquid crystal structure similar to the skin's lamellar structure.

[0003] However, conventional liquid crystal emulsion creams often exhibited a smooth and moist-looking appearance because the liquid crystal structure within the cosmetic composition was not properly formed when containing a high amount of polyol, and the development of ointment creams based on liquid crystal creams with high polyol content has been insufficient. The problem to be solved

[0004] The inventors have completed an invention regarding a liquid crystal cosmetic composition that can contain a higher amount of polyol compared to conventional liquid crystal creams by using stearyl alcohol and cetearyl alcohol.

[0005] Accordingly, the objective of the present invention is to provide a liquid crystal cosmetic composition comprising stearyl alcohol, cetearyl alcohol, and polyol.

[0006] Another object of the present invention is to provide a method for preparing a liquid crystal cosmetic composition comprising the following steps:

[0007] A phase preparation step for preparing a phase containing polyol;

[0008] An oil phase preparation step for preparing an oil phase comprising stearyl alcohol and cetearyl alcohol; and

[0009] A mixing step for preparing a mixture by mixing the above aqueous phase and the above oil phase. means of solving the problem

[0010] The present invention relates to a liquid crystal cosmetic composition comprising stearyl alcohol and cetearyl alcohol and a method for manufacturing the same, and more specifically, to a liquid crystal cosmetic composition that can contain a higher content of polyol by using stearyl alcohol and cetearyl alcohol.

[0011] The present invention will be described in more detail below.

[0012] One aspect of the present invention relates to a liquid crystal cosmetic composition comprising stearyl alcohol, cetearyl alcohol, and polyol.

[0013] In the present invention, the stearyl alcohol may be included in an amount of 1 to 3 weight% based on the total weight of the cosmetic composition, and 1 to 2.8 weight%, 1 to 2.6 weight%, 1 to 2.4 weight%, 1 to 2.2 weight%, 1 to 2 weight%, 1.2 to 3 weight%, 1.2 to 2.8 weight%, 1.2 to 2.6 weight%, 1.2 to 2.4 weight%, 1.2 to 2.2 weight%, 1.2 to 2 weight%, 1.4 to 3 weight%, 1.4 to 2.8 weight%, 1.4 to 2.6 weight%, 1.4 to 2.4 weight%, 1.4 to 2.2 weight%, 1.4 to 2 weight%, 1.6 to 3 weight%, 1.6 to 2.8 weight%, 1.6 to It may be included in an amount of 2.6 wt%, 1.6 to 2.4 wt%, 1.6 to 2.2 wt%, 1.6 to 2 wt%, 1.8 to 3 wt%, 1.8 to 2.8 wt%, 1.8 to 2.6 wt%, 1.8 to 2.4 wt%, 1.8 to 2.2 wt%, or 1.8 to 2 wt%, for example, 2 wt%, but is not limited thereto.

[0014] In the present invention, the cetearyl alcohol may be included in an amount of 6 to 10 weight% relative to the total weight of the cosmetic composition, and may be included in an amount of 6 to 9.5 weight%, 6 to 9 weight%, 6 to 8.5 weight%, 6 to 8 weight%, 6.5 to 10 weight%, 6.5 to 9.5 weight%, 6.5 to 9 weight%, 6.5 to 8.5 weight%, 6.5 to 8 weight%, 7 to 10 weight%, 7 to 9.5 weight%, 7 to 9 weight%, 7 to 8.5 weight%, 7 to 8 weight%, 7.5 to 10 weight%, 7.5 to 9.5 weight%, 7.5 to 9 weight%, 7.5 to 8.5 weight%, or 7.5 to 8 weight%, for example, may be included in an amount of 8 weight%, but It is not limited.

[0015] In the present invention, the stearyl alcohol and cetearyl alcohol may be included in a weight ratio of 1:2 to 1:10, and may be included in a weight ratio of 1:2 to 1:9, 1:2 to 1:8, 1:2 to 1:7, 1:2 to 1:6, 1:2 to 1:5, 1:2 to 1:4, 1:3 to 1:10, 1:3 to 1:9, 1:3 to 1:8, 1:3 to 1:7, 1:3 to 1:6, 1:3 to 1:5, 1:3 to 1:4, 1:4 to 1:10, 1:4 to 1:9, 1:4 to 1:8, 1:4 to 1:7, 1:4 to 1:6, or 1:4 to 1:5, for example, It may be included in a weight ratio of 1:4, but is not limited thereto.

[0016] In the present invention, the polyol may be included in an amount of 10 to 50 weight% relative to the total weight of the cosmetic composition, 10 to 45 weight%, 10 to 40 weight%, 10 to 35 weight%, 10 to 30 weight%, 15 to 50 weight%, 15 to 45 weight%, 15 to 40 weight%, 15 to 35 weight%, 15 to 30 weight%, 20 to 50 weight%, 20 to 45 weight%, 20 to 40 weight%, or 20 to 35 weight%, and may be included in an amount of, for example, 20 to 30 weight%, but is not limited thereto.

[0017] In the present invention, the polyol may be one or more selected from the group consisting of dipropylene glycol, butylene glycol, glycerin, diglycerin, propanediol, and methylpropanediol, but is not limited thereto.

[0018] In the present invention, the cosmetic composition may additionally include one or more selected from the group consisting of emulsifying aids, preservatives, neutralizing agents, skin conditioning agents, and thickening agents, but is not limited thereto.

[0019] In the present invention, the emulsifying agent may be included in an amount of 0.1 to 10 weight% relative to the total weight of the cosmetic composition, 0.1 to 8 weight%, 0.1 to 6 weight%, 0.1 to 4 weight%, 0.5 to 10 weight%, 0.5 to 8 weight%, 0.5 to 6 weight%, 0.5 to 4 weight%, 1 to 10 weight%, 1 to 8 weight%, 1 to 6 weight%, 1 to 4 weight%, 2 to 10 weight%, 2 to 8 weight%, or 2 to 6 weight%, and for example, may be included in an amount of 2 to 4 weight%, but is not limited thereto.

[0020] In the present invention, the emulsifying aid may be one or more selected from the group consisting of cetearyl oliveate, sorbitan oliveate, stearic acid, cetyl palmitate, sorbitan palmitate, palmitic acid, hydrogenated lecithin, sorbitan oliveate, glyceryl stearate SE, glyceryl stearate, polyglyceryl-6 behenate, and diphenylsiloxyphenyl trimethicone, but is not limited thereto.

[0021] In the present invention, the preservative may be included in an amount of 1 to 10 weight% relative to the total weight of the cosmetic composition, 1 to 8 weight%, 1 to 6 weight%, 1 to 4 weight%, 2 to 10 weight%, 2 to 8 weight%, 2 to 6 weight%, 2 to 4 weight%, 3 to 10 weight%, 3 to 8 weight%, or 3 to 6 weight%, and may be included in an amount of, for example, 3 to 4 weight%, but is not limited thereto.

[0022] In the present invention, the preservative may be one or more selected from the group consisting of 1,2-hexanediol, pentylene glycol, ethylhexylglycerin, caprylyl glycol, caprylhydroxamic acid, glyceryl caprylate, phenoxyethanol, and hydroxyacetophenone, but is not limited thereto.

[0023] In the present invention, the neutralizing agent may be included in an amount of 0.01 to 1 weight% relative to the total weight of the cosmetic composition, and may be included in an amount of 0.01 to 0.7 weight%, 0.01 to 0.5 weight%, 0.01 to 0.2 weight%, 0.05 to 1 weight%, 0.05 to 0.7 weight%, 0.05 to 0.5 weight%, 0.05 to 0.2 weight%, 0.1 to 1 weight%, 0.1 to 0.7 weight%, and 0.1 to 0.5 weight%, and may be included, for example, in an amount of 0.1 to 0.2 weight%, but is not limited thereto.

[0024] In the present invention, the neutralizing agent may comprise one or more selected from the group consisting of tromethamine, arginine, potassium hydroxide, sodium hydroxide, triethanolamine and aminomethylpropanediol, L-arginine, sodium hydroxide and sodium citrate, but is not limited thereto.

[0025] In the present invention, the skin conditioning agent may be included in an amount of 1 to 30 weight% based on the total weight of the cosmetic composition, 1 to 25 weight%, 1 to 20 weight%, 1 to 15 weight%, 1 to 10 weight%, 3 to 30 weight%, 3 to 25 weight%, 3 to 20 weight%, 3 to 15 weight%, 3 to 10 weight%, 5 to 30 weight%, 5 to 25 weight%, 5 to 20 weight%, or 5 to 15 weight%, and may be included in an amount of, for example, 5 to 10 weight%, but is not limited thereto.

[0026] In the present invention, the skin conditioning agent is one selected from the group consisting of caprylic / capric triglyceride, phytosteryl isostearyl dimer dilinoleate, vinyl dimethicone, dimethicone, diphenylsiloxyphenyl trimethicone, phenyl trimethicone, diphenyl dimethicone, dimethiconol, cetyl ethylhexanoate, ethylhexyl palmitate, ethylhexyl stearate, neopentyl glycol dicaprate, neopentyl glycol diethylhexanoate, pentaerythrityl tetraisostearate, hydrogenated polydecene, triisostearin, pentaerythrityl tetraethylhexanoate, diisostearyl malate, triethylhexanoin, cyclopentasiloxane, cyclohexasiloxane, decyl cocoate, and squalane. It may be more than that, but is not limited to this.

[0027] In the present invention, the thickening agent may be included in an amount of 0.01 to 1 weight% relative to the total weight of the cosmetic composition, and may be included in an amount of 0.01 to 0.7 weight%, 0.01 to 0.5 weight%, 0.01 to 0.3 weight%, 0.05 to 1 weight%, 0.05 to 0.7 weight%, 0.05 to 0.5 weight%, 0.05 to 0.2 weight%, 0.1 to 1 weight%, 0.1 to 0.7 weight%, and 0.1 to 0.5 weight%, and may be included in an amount of, for example, 0.1 to 0.3 weight%, but is not limited thereto.

[0028] In the present invention, the thickening agent may be one or more selected from the group consisting of carbomer, xanthan gum, acrylate / C10-30 alkyl acrylate crosspolymer, sodium polyacryloyl dimethyl taurate, hydroxyethyl acrylate / sodium acryloyl dimethyl taurate copolymer, hydroxymethylcellulose, hydroxyethyl cellulose, and hydroxypropylmethylcellulose, but is not limited thereto.

[0029] Another aspect of the present invention relates to a method for preparing a liquid crystal cosmetic composition comprising the following steps:

[0030] A phase preparation step for preparing a phase containing polyol;

[0031] An oil phase preparation step for preparing an oil phase comprising stearyl alcohol and cetearyl alcohol; and

[0032] A mixing step for preparing a mixture by mixing the above aqueous phase and the above oil phase.

[0033] At this time, the description of a liquid crystal cosmetic composition containing stearyl alcohol, cetearyl alcohol, and polyol may also be applied to the aspects regarding the manufacturing method.

[0034] In the present invention, the aqueous phase preparation step may be performed at a temperature of 60 to 80°C, 60 to 75°C, 65 to 80°C, or 65 to 75°C, and, for example, may be performed at a temperature of 70°C, but is not limited thereto.

[0035] In the present invention, the oil phase manufacturing step may be performed at a temperature of 60 to 80°C, 60 to 75°C, 65 to 80°C, or 65 to 75°C, and, for example, may be performed at a temperature of 70°C, but is not limited thereto.

[0036] In the present invention, the mixing step may be performed at a temperature of 60 to 80°C, 60 to 75°C, 65 to 80°C, or 65 to 75°C, and, for example, may be performed at a temperature of 70°C, but is not limited thereto.

[0037] In the present invention, the method for manufacturing the liquid crystal cosmetic composition may additionally perform a step of adding a thickener and a preservative to the mixture after performing the mixing step, but is not limited thereto.

[0038] In the present invention, the step of adding the thickener and preservative may be performed at a temperature of 60 to 80°C, 60 to 75°C, 65 to 80°C, or 65 to 75°C, and, for example, may be performed at a temperature of 70°C, but is not limited thereto.

[0039] In the present invention, the method for manufacturing the liquid crystal cosmetic composition may additionally perform a cooling step after performing the preservative addition step, but is not limited thereto.

[0040] In the present invention, the cooling step may be performed by cooling the mixture to 40 to 50°C, or by cooling to 40 to 48°C, 40 to 45°C, 43 to 50°C, or 43 to 48°C, and may be performed by cooling to 45°C, for example, but is not limited thereto.

[0041] The cosmetic composition of the present invention can be prepared in various formulations, and there are no particular limitations on the formulations. For example, it can be prepared in formulations such as cream, lotion, essence, etc., and more specifically, softening lotion, nourishing lotion, essence, nourishing emulsion, nourishing cream, eye cream, massage cream, hair cosmetic products, body emulsion, body cream, body oil, body essence, etc.

[0042] For example, the cosmetic composition of the present invention may be in the form of a cream. The carrier or additive used therein may be used selectively depending on the formulation of the cosmetic.

[0043] Accordingly, the cosmetic composition used in the present invention may further include, in addition to the above ingredients, ingredients that can generally be used in cream formulations, such as oil ingredients, moisturizers, organic and inorganic pigments, organic powders, UV absorbers, preservatives, disinfectants, antioxidants, plant extracts, pH adjusters, alcohols, colorants, fragrances, blood circulation promoters, cooling agents, antiperspirants, preservatives, and solvents, and may further add fragrances according to preference.

[0044] In addition, animal fibers, plant fibers, wax, paraffin, starch, tracanth, cellulose derivatives, polyethylene glycol, silicone, bentonite, silica, talc, or zinc oxide may be used as carrier components in the formulation of the present invention. Effects of the invention

[0045] The present invention relates to a liquid crystal cosmetic composition comprising stearyl alcohol and cetearyl alcohol and a method for manufacturing the same, and can provide a liquid crystal cosmetic composition that can contain a higher amount of polyol by using stearyl alcohol and cetearyl alcohol. Brief explanation of the drawing

[0046] Figure 1a is a photograph confirming whether a liquid crystal structure is formed in the cosmetic composition of Example 1 according to one experimental example of the present invention. FIG. 1b is a photograph confirming whether a liquid crystal structure is formed in the cosmetic composition of Comparative Example 1 according to one experimental example of the present invention. FIG. 1c is a photograph confirming whether a liquid crystal structure is formed in the cosmetic composition of Comparative Example 2 according to one experimental example of the present invention. FIG. 1d is a photograph confirming whether a liquid crystal structure is formed in the cosmetic composition of Comparative Example 3 according to one experimental example of the present invention. FIG. 2 is a graph showing the rate of increase or decrease in skin gloss of the cosmetic compositions of Example 1 and Comparative Examples 1 to 3 according to one experimental example of the present invention. FIG. 3a is a photograph confirming whether a liquid crystal structure is formed in the cosmetic composition of Example 1 according to one experimental example of the present invention. FIG. 3b is a photograph confirming whether a liquid crystal structure is formed in the cosmetic composition of Comparative Example 4 according to one experimental example of the present invention. FIG. 3c is a photograph confirming whether a liquid crystal structure is formed in the cosmetic composition of Comparative Example 5 according to one experimental example of the present invention. Figure 4 is a photograph comparing the degree of foundation transfer before and after application of the cosmetic composition of Example 1 according to one experimental example of the present invention. Figure 5 is a photograph comparing the skin moisture levels before and after application of the cosmetic composition of Example 1 according to one experimental example of the present invention. Specific details for implementing the invention

[0047] The present invention will be explained in more detail below through the following examples. However, these examples are merely illustrative of the invention, and the scope of the invention is not limited by these examples.

[0048] Throughout this specification, "%" used to indicate the concentration of a particular substance is (weight / weight)% for solid / solid, (weight / volume)% for solid / liquid, and (volume / volume)% for liquid / liquid, unless otherwise noted.

[0050] Preparation Example 1. Preparation of a cosmetic composition

[0051] Cosmetic compositions of Example 1 and Comparative Examples 1 to 5 were prepared according to the composition and content ratios listed in Table 1 below.

[0052] classification composition Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 premier purified water purified water To 100 To 100 To 100 To 100 To 100 To 100 polyol Dipropylene glycol 23 23 23 23 23 23 polyol Butylene glycol 3 3 3 3 3 3 Emulsifying agent Cetearyl Oliveate 1.5 1.5 1.5 1.5 1.5 1.5 Emulsifying agent Sorbitan Oliveate 1.5 1.5 1.5 1.5 1.5 1.5 antiseptic 1,2-hexanediol 1.5 1.5 1.5 1.5 1.5 1.5 antiseptic Pentylene glycol 2 2 2 2 2 2 corrector Tromethamine 0.19 0.19 0.19 0.19 0.19 0.19 Paid Emulsifying agent cetearyl alcohol 8 8 8 8 8 8 Emulsifying agent Stearyl alcohol 2 - - - 1 4 Emulsifying agent Behenyl alcohol - 2 - - - - Emulsifying agent Cetyl alcohol - - 2 - - - Emulsifying agent Myristyl alcohol - - - 2 - - Skin conditioning agent Caprylic / Capric Triglyceride 4 4 4 4 4 4 Skin conditioning agent Phytosteryl isostearyl dimer dilinoleate 3 3 3 3 3 3 Skin conditioning agent Vinyl dimethicone 1 1 1 1 1 1 Thickener part Thickener Carbomer 0.2 0.2 0.2 0.2 0.2 0.2 Preservative part antiseptic Ethylhexylglycerin 0.05 0.05 0.05 0.05 0.05 0.05

[0053] First, the aqueous and oil phase components of Table 1 above were each heated to 70°C and stirred to prepare the aqueous and oil phases, and the prepared aqueous and oil phases were mixed to prepare a liquid crystal cosmetic composition. Subsequently, the components of the thickener part and the preservative part were heated to 70°C, dissolved, and added to the mixed composition, and then cooled to 45°C to prepare the final cosmetic composition.

[0054] The compositions of Example 1 and Comparative Examples 1 to 5 prepared as described above were used in the following experimental examples.

[0056] Experimental Example 1. Confirmation of liquid crystal structure formation of cosmetic compositions according to the type of aliphatic alcohol

[0057] The formation of a liquid crystal structure in the cosmetic compositions prepared according to Example 1 and Comparative Examples 1 to 3 was analyzed using an optical microscope. Images of the liquid crystal particles were captured using a fluorescence / polarization / phase contrast upright microscope (Olympus BX51, Olympus; 400x magnification).

[0058] As can be seen in FIGS. 1a and 1d, in the case of the cosmetic composition of Example 1 using cetearyl alcohol and stearyl alcohol, a liquid crystal structure was well formed, but in Comparative Examples 1 to 3 using behenyl alcohol, cetyl alcohol, or myristyl alcohol, respectively, instead of stearyl alcohol, a liquid crystal structure was hardly formed in the composition.

[0060] Experimental Example 2. Comparison of skin radiance improvement effects according to the type of aliphatic alcohol

[0061] After applying the cosmetic compositions of Example 1 and Comparative Examples 1 to 3, the change in skin luster was compared.

[0062] First, to compare changes in skin gloss after the application of the cosmetic, five adult men and women with sensitive skin (average age 31.6 years) were selected, and the cosmetic compositions of Example 1 and Comparative Examples 1 to 3 were applied to the face. Skin gloss (SKIN GLOSS UNIT) was measured 10 minutes after the application of the cosmetic to compare and evaluate the skin gloss before and after application. Skin gloss was measured using a skin gloss meter (Skin Gloss Meter, Delfin, Finland) and is shown in Table 2.

[0063] Examples Comparative Example 1 Comparative Example 2 Comparative Example 3 Skin Glow Increase / Decrease Rate (%) 33.03 28.83 26.54 20.8

[0064] As can be seen in Figure 2, in the case of the cosmetic composition of Example 1 using cetearyl alcohol and stearyl alcohol, the skin gloss after application increased by 33.03% compared to before application, but the cosmetic compositions of Comparative Examples 1 to 3 using behenyl alcohol, cetyl alcohol, or myristyl alcohol instead of stearyl alcohol showed an increase in skin gloss of about 20 to 30%, which did not reach the level of the cosmetic composition of Example 1.

[0066] Experimental Example 3. Confirmation of liquid crystal structure formation according to the content ratio of stearyl alcohol and cetearyl alcohol

[0067] The formation of a liquid crystal structure in the cosmetic compositions prepared according to Example 1 and Comparative Examples 4 and 5 was analyzed using an optical microscope. Images of the liquid crystal particles were captured using a fluorescence / polarization / phase contrast upright microscope (Olympus BX51, Olympus; 400x magnification).

[0068] As can be seen in Fig. 3a, in the case of the cosmetic composition of Example 1 containing stearyl alcohol and cetearyl alcohol in a weight ratio of 1:4, a liquid crystal structure was well formed.

[0069] On the other hand, as can be seen in Figures 3b and 3c, Comparative Examples 4 and 5, which were included in ratios of 1:8 and 1:2, formed a liquid crystal structure, but did not form a liquid crystal structure as well as the cosmetic composition of Example 1.

[0071] Experimental Example 4. Comparison of foundation transfer following cosmetic application

[0072] In order to compare the degree of foundation transfer according to the application of the cosmetic composition, the difference in the degree of foundation transfer according to whether or not the cosmetic composition of Example 1 was used was compared.

[0073] Five adult men and women with sensitive skin (average age 32.3 years) were selected. The inner forearm, the test site, was washed with soap and kept in a constant temperature and humidity room (22±2℃, 40~60 RH) for 10 minutes. The cosmetic composition of Example 1 was applied to the test site and dried for 3 minutes, after which a foundation product was applied. Subsequently, 3M paper was placed on the test site and pressed three times with a constant force, and the amount of foundation transferred was compared and evaluated. At this time, the control group did not have the cosmetic composition applied, and the area of ​​foundation transferred to the 3M paper was calculated using a C-cube (PIIXIENCE, France) and an Image Pro Analyzer (Media Cybernetics, Inc., USA) as measuring instruments.

[0074] As can be seen in Figure 4, the degree of foundation transfer on the area where the cosmetic composition was used was approximately 57.8% compared to the area where the cosmetic was not used.

[0076] Experimental Example 5. Comparison of moisturizing power according to the application of cosmetics

[0077] To confirm the moisturizing effect following the application of the cosmetic composition, the skin moisture level was measured before and after the application of the cosmetic composition of Example 1.

[0078] Specifically, the test area was washed with soap and then left in a constant temperature and humidity room (22±2℃, 40~60 RH) for 10 minutes. After that, the cosmetic composition of Example 1 was applied to the test area, and after 10 minutes, the skin moisture level of the test area was compared to before use. The above process was repeated three times, and the average of the measured values ​​was calculated and shown in Table 3.

[0079] Before use (AU) After use (AU) Increase Example 1 3.08 23.42 659.5%

[0080] As can be seen in Figure 5, when the cosmetic composition of Example 1 was applied to the test area, the skin moisture level increased significantly.

Claims

Claim 1 A liquid crystal cosmetic composition comprising stearyl alcohol, cetearyl alcohol, and polyol. Claim 2 A liquid crystal cosmetic composition according to claim 1, wherein the stearyl alcohol is included in an amount of 1 to 3 weight percent based on the total weight of the cosmetic composition. Claim 3 A liquid crystal cosmetic composition according to claim 1, wherein the cetearyl alcohol is included in an amount of 6 to 10 weight% relative to the total weight of the cosmetic composition. Claim 4 A liquid crystal cosmetic composition according to claim 1, wherein the stearyl alcohol and cetearyl alcohol are included in a weight ratio of 1:2 to 1:

10. Claim 5 A liquid crystal cosmetic composition according to claim 1, wherein the polyol is included in an amount of 10 to 50 weight% relative to the total weight of the cosmetic. Claim 6 A liquid crystal cosmetic composition according to claim 1, wherein the cosmetic composition further comprises one or more selected from the group consisting of emulsifying aids, preservatives, neutralizing agents, skin conditioning agents, and thickening agents. Claim 7 A method for preparing a liquid crystal cosmetic composition comprising the following steps: a water phase preparation step for preparing a water phase containing a polyol; an oil phase preparation step for preparing an oil phase containing stearyl alcohol and cetearyl alcohol; and a mixing step for preparing a mixture by mixing the water phase and the oil phase.