Transparent and solubilized cosmetic material composition containing high content of menthol-based and vimentin-based cooling agents

Abstract

The present invention relates to a cosmetic material composition comprising menthol-based and non-menthol-based cooling agents as cooling ingredients, and specifically, to a transparent cosmetic material composition in which a high content of menthol-based and non-menthol-based cooling agents is stabilized through the addition of a specific solubilizer, and which thus exhibits an excellent cooling effect without irritating the skin.

Description

Transparent solubilized cosmetic composition containing a high content of menthol-based and non-menthol-based cooling agents

[0001] The present invention relates to a cosmetic composition comprising a menthol-based and non-menthol-based cooling agent as a cooling ingredient, and more particularly, to a cosmetic composition that exhibits an excellent cooling effect and forms a transparent formulation by stabilizing a high content of menthol-based and non-menthol-based cooling agent through a combination of specific solubilizers.

[0002] As global warming continues to lead to sweltering summers, rising skin temperatures are becoming a growing concern. Rising skin temperatures rapidly destroy collagen and elastin fibers, accelerating wrinkles and other skin aging processes. Consequently, demand for cooling cosmetics that effectively lower skin temperature is on the rise.

[0003] Cooling cosmetics provide a cooling sensation when applied to the skin, cooling it and soothing irritated skin. Furthermore, they can improve skin elasticity by constricting blood vessels. These cooling cosmetics contain cooling ingredients like menthol, menthol derivatives, and xylitol, providing a refreshing sensation to the skin.

[0004] However, when a cosmetic composition contains a high concentration of cooling agent to enhance its cooling effect, it can cause increased skin irritation. Furthermore, cooling agents such as menthol have unstable formulation stability, making it difficult to achieve a transparent formulation.

[0005] Accordingly, the inventors of the present invention completed the present invention by stabilizing a high content of menthol-based and non-menthol-based cooling agents through a combination of specific solubilizing agents, thereby implementing a transparent cosmetic composition that exhibits an excellent cooling effect without irritation to the skin.

[0006] The purpose of the present invention is to provide a cosmetic composition in a transparent formulation with an excellent cooling effect by stabilizing a high content of menthol-based and non-menthol-based cooling agents.

[0007] The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below.

[0008] According to an embodiment of the present invention, a cosmetic composition having an excellent cooling sensation is provided, which comprises a cooling ingredient and a solubilizer, wherein the cooling ingredient comprises a menthol-based and non-menthol-based cooling agent.

[0009] The present invention can stabilize high-content menthol-based and non-menthol-based cooling agents by mixing a specific ratio of solubilizers.

[0010] The cosmetic composition of the present invention can have an excellent cooling effect by containing a high content of menthol and methyldiisopropylpropionamide components.

[0011] In addition, the cosmetic composition can have a transparent formulation by stabilizing the menthol-based and non-menthol-based cooling agents.

[0012] In order to more fully understand the drawings cited in the detailed description of the present invention, a brief description of each drawing is provided.

[0013] Figure 1 shows a photograph of a transparent cosmetic composition of Example 1.

[0014] Figure 2 shows a photograph of the cosmetic composition of Comparative Example 5.

[0015] Figure 3 shows a photograph of the cosmetic composition of Comparative Example 6.

[0016] According to an embodiment of the present invention, a cosmetic composition having an excellent cooling sensation is provided, which comprises a cooling ingredient and a solubilizer, wherein the cooling ingredient comprises a menthol-based and non-menthol-based cooling agent.

[0017] Additionally, the menthol-based cooling agent may include at least one of menthol and a menthol derivative.

[0018] Additionally, the non-menthol-based cooling agent may include methyldiisopropylpropionamide.

[0019] Additionally, the solubilizing agent may include octyldodeceth-16 and C12-14alketh-12.

[0020] Additionally, the menthol-based cooling agent may be included in an amount of 0.0005 to 5 wt% based on the total weight of the cosmetic composition.

[0021] Additionally, the non-menthol-based cooling agent may be included in an amount of 0.0005 to 5 wt% based on the total weight of the cosmetic composition.

[0022] Additionally, the cooling ingredient may be included in an amount of 0.001 to 10 wt% based on the total weight of the cosmetic composition.

[0023] Additionally, the octyldodeceth-16 may be included in an amount of 0.001 to 10 wt% based on the total weight of the cosmetic composition.

[0024] Additionally, the C12-14 alkene-12 may be included in an amount of 0.001 to 10 wt% based on the total weight of the cosmetic composition.

[0025] Additionally, the octyldodeceth-16 and C12-14alketh-12 may be included in a weight ratio of 1:0.25 to 4.

[0026] Additionally, the cooling component and solubilizer may be included in a weight ratio of 1:1.4 to 8.

[0027] In addition, the cosmetic composition further includes a solvent, and the solvent may include ethanol and polyol.

[0028] Additionally, the cooling component and solvent may be included in a weight ratio of 1:10 to 65.

[0029] Additionally, the cosmetic composition may be characterized as being transparent.

[0030] In addition, the cosmetic composition may be characterized as being a solubilized formulation.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention pertains. In general, the nomenclature used herein is well known and commonly used in the art. In addition, when describing embodiments of the present invention, if a detailed description of a related known structure or function is judged to hinder the understanding of the embodiments of the present invention, a detailed description thereof will be omitted. In addition, although embodiments of the present invention will be described below, the technical idea of ​​the present invention is not limited or restricted thereto, and can be modified and implemented in various ways by those skilled in the art.

[0032] When a part in this specification is said to include a certain component, this does not exclude other components, unless otherwise specifically stated, but rather means that other components may be included. In this specification, the term "and / or" includes a combination of multiple related items or any one of multiple related items.

[0033]

[0034] According to an embodiment of the present invention, a cosmetic composition with excellent cooling sensation is provided. The cosmetic composition may include a menthol-based or non-menthol-based cooling agent as a cooling ingredient. The cosmetic composition according to the present invention can stably contain high amounts of menthol-based or non-menthol-based cooling agents through the incorporation of a specific solubilizer. Accordingly, the cosmetic composition exhibits an excellent cooling effect and can form a transparent formulation.

[0035] The cosmetic composition of the present invention comprises a cooling ingredient. In some embodiments, the cooling ingredient may be included in an amount of 0.001 to 10 wt%, specifically 0.01 to 6 wt%, more specifically 0.2 to 2 wt%, and even more specifically 1 wt%, based on the total weight of the cosmetic composition.

[0036] The cosmetic composition of the present invention includes a menthol-based cooling agent as a cooling ingredient. In some embodiments, the menthol-based cooling agent may include at least one of menthol and a menthol derivative.

[0037] Menthol is a volatile substance extracted or synthesized from peppermint, also known as peppermint brain. Menthol raises the threshold temperature of cold spots, making it easier to feel cool when in contact with the area. Specifically, the body has a protein channel called TRPM8 that causes a cooling sensation at temperatures below a certain level. Menthol binds to the TRPM8 channel, causing it to activate at higher temperatures. Therefore, ingesting or applying a substance containing menthol produces a cooling sensation. In the present invention, menthol can be stably contained in a high-content formulation to exhibit excellent cooling effects.

[0038] The 'menthol derivative' may be selected from the group consisting of Menthyl Lactate, Menthyl Acetate, Menthone, Menthone Glycerin Acetal, Menthyl Ethylamido Oxalate, Menthyl Salicylate, Isopulegol, Cineole, Menthoxypropanediol, and Ethyl Menthane Carboxamide.

[0039] According to an embodiment, the menthol-based cooling agent may be included in an amount of 0.0005 to 5 wt% based on the total weight of the cosmetic composition, specifically 0.005 to 3 wt%, more specifically 0.1 to 1 wt%, and even more specifically 0.5 wt%. When the menthol-based cooling agent is included in an amount of less than 0.0005 wt%, the cooling effect of the cosmetic composition may be reduced, and when the menthol-based cooling agent is included in an amount of more than 5 wt%, the formulation may not be stably formed and a precipitation phenomenon may occur, and may cause irritation to the skin.

[0040] The cosmetic composition of the present invention comprises a non-menthol-based cooling agent together with a menthol-based cooling agent as a cooling ingredient. In an embodiment, the non-menthol-based cooling agent may include methyl diisopropyl propionamide. "Methyl diisopropyl propionamide" is a crystalline ingredient with properties similar to menthol, and its main characteristics are excellent in the persistence of a cooling effect, low odor, and low volatility. In the present invention, methyl diisopropyl propionamide can be stably contained in a high-content formulation together with the menthol, thereby providing an excellent cooling sensation and improving the persistence of the cooling sensation. In an embodiment, methyl diisopropyl propionamide can be used in the form of a crystalline powder.

[0041] According to an embodiment, the non-menthol-based cooling agent may be included in an amount of 0.0005 to 5 wt% based on the total weight of the cosmetic composition, specifically 0.005 to 3 wt%, more specifically 0.1 to 1 wt%, and even more specifically 0.5 wt%. When the non-menthol-based cooling agent is included in an amount of less than 0.0005 wt%, the cooling effect of the cosmetic composition may be reduced, and when the non-menthol-based cooling agent is included in an amount of more than 5 wt%, the formulation may not be formed stably and a precipitation phenomenon may occur, and may cause irritation to the skin.

[0042] The cosmetic composition of the present invention comprises a solubilizer together with a cooling ingredient.

[0043] In some embodiments, the solubilizing agent of the present invention may include octyldodeceth-16 and C12-14alketh-12. When both types of solubilizing agents are included, a solubilizing formulation stably containing a high content of menthol-based and non-menthol-based cooling agents can be formed.

[0044] According to an embodiment, the solubilizer of the present invention may be included in an amount of 0.002 to 20 wt%, specifically 0.02 to 12 wt%, more specifically 0.2 to 6 wt%, and even more specifically 2 wt%, based on the total weight of the cosmetic composition. When the content of the solubilizer is less than 0.002 wt%, a transparent and stable formulation may not be formed, and when the content of the solubilizer exceeds 20 wt%, it may cause strong irritation to the skin.

[0045] Octyldodeceth-16 is a transparent, liquid aliphatic alcohol created by the reaction between octyldodecanol and ethylene oxide. Octyldodeceth-16 aids in the dissolution of oil phase and functional ingredients, and stabilizes the formulation. Furthermore, it facilitates the penetration of active ingredients into the skin, providing a radiant glow.

[0046] In the present invention, octyldodeceth-16 is contained in an appropriate amount as a solubilizing agent, thereby solubilizing and stabilizing high-content menthol-based and non-menthol-based cooling agents. Therefore, octyldodeceth-16 can enable the implementation of transparent formulations and provide a cosmetic composition exhibiting an excellent cooling effect.

[0047] According to an embodiment, octyldodeceth-16 may be included in an amount of 0.001 to 10 wt% based on the total weight of the cosmetic composition, specifically 0.01 to 6 wt%, more specifically 0.1 to 3 wt%, and even more specifically 1 wt%. When octyldodeceth-16 is included in an amount of less than 0.001 wt%, the formulation of the cosmetic composition may not be formed stably and a precipitation phenomenon may occur, and when octyldodeceth-16 is included in an amount of more than 10 wt%, the formulation may not be formed stably and a precipitation phenomenon may occur, and may cause irritation to the skin upon application.

[0048] 'C12-14 Alketh-12' is a surfactant also called 'C12-14 Pareth-12'. C12-14 Alketh-12 has an emulsifying effect that helps water-soluble and fat-soluble components mix evenly.

[0049] In the present invention, C12-14 alkes-12 is contained in an appropriate amount as a solubilizing agent, thereby solubilizing and stabilizing high-content menthol-based and non-menthol-based cooling agents. Therefore, C12-14 alkes-12 can realize a cosmetic composition in a transparent formulation, and can provide a cosmetic composition exhibiting an excellent cooling effect.

[0050] According to an embodiment, C12-14 alkene-12 may be included in an amount of 0.001 to 10 wt% based on the total weight of the cosmetic composition, specifically 0.01 to 6 wt%, more specifically 0.1 to 3 wt%, and even more specifically 1 wt%. When C12-14 alkene-12 is included in an amount of less than 0.001 wt%, the formulation of the cosmetic composition may not be formed stably and a precipitation phenomenon may occur, and when C12-14 alkene-12 is included in an amount of more than 10 wt%, the formulation may not be formed stably and a precipitation phenomenon may occur, and may cause irritation to the skin upon application.

[0051] According to an embodiment, octyldodeceth-16 and C12-14 alkene-12 may be included in a weight ratio of 1:0.25 to 4, specifically, may be included in a weight ratio of 1:0.5 to 2, and more specifically, may be included in a weight ratio of 1:1. When the content of C12-14 alkene-12 relative to octyldodeceth-16 is less than 0.25 times, the formulation may be unstable and a separation phenomenon may occur, and when the content of C12-14 alkene-12 relative to octyldodeceth-16 exceeds 4 times, the formulation may be unstable and a separation phenomenon may occur.

[0052] According to an embodiment, the cooling component and the solubilizer may be included in a weight ratio of 1:1.4 to 8, specifically, in a weight ratio of 1:1.5 to 6, and more specifically, in a weight ratio of 1:2. When the content of the solubilizer relative to the cooling component is less than 1.4 times, a transparent and stable formulation may not be formed, and when the content of the solubilizer relative to the cooling component is more than 8 times, a strong irritation may be given to the skin. When the composition of the present invention includes the cooling component and the solubilizer in the above-described contents and the cooling component and the solubilizer are included in a weight ratio of 1:1.4 to 8, a more stable formulation may be formed and a cooling sensation may be significantly improved.

[0053] In some embodiments, the cosmetic composition may further include a solvent. Specifically, the solvent may include ethanol and a polyol. Specifically, including ethanol as a solvent can facilitate the formation of a stable formulation. Furthermore, upon skin application, the composition can exhibit a cooling effect by volatilizing and lowering skin temperature. Furthermore, when both ethanol and a polyol are included as solvents, the stability and solubilization efficiency of the formulation can be significantly improved compared to when only one of the two solvents is included.

[0054] In the present invention, "polyol" may refer to an organic compound having two or more hydroxyl groups (-OH). For example, the polyol may be methylpropanediol, polyethylene glycol, polypropylene glycol, dipropylene glycol, propylene glycol, butylene glycol, glycerin, and pentylene glycol. Specifically, glycerin and 1,3-butylene glycol may be used. However, the present invention is not limited thereto.

[0055] According to an embodiment, the solvent may be included in an amount of 10 to 65 wt%, specifically 11 to 40 wt%, and more specifically 13 to 25 wt%, based on the total weight of the cosmetic composition. When the content of the solvent is less than 10 wt%, the formulation of the cosmetic composition may be unstable, resulting in precipitation or reduced preservative properties, and a reduced cooling sensation during use. In addition, when the content of the solvent exceeds 65 wt%, the cosmetic composition may have a sticky feeling when used or may exhibit flammability.

[0056] According to an embodiment, the cooling component and the solvent may be included in a weight ratio of 1:10 to 65, specifically, in a weight ratio of 1:11 to 40, and more specifically, in a weight ratio of 13:25. When the content of the solvent relative to the cooling component is less than 10 times, the formulation of the cosmetic composition may be unstable, causing precipitation, and when the content of the solvent relative to the cooling component is more than 65 times, the formulation may be slippery or sticky, resulting in a reduced usability.

[0057] The cosmetic composition of the present invention may further include a thickening agent.

[0058] Depending on the embodiment, the thickener may be any ingredient commonly used in the art without limitation. For example, xanthan gum may be used, but this is not a limitation. Adding a thickener can help stabilize the cooling agent by forming viscosity in the formulation.

[0059] Depending on the embodiment, the thickener may be included in an amount of 0.00001 to 1 wt%, specifically 0.001 to 0.1 wt%, and more specifically 0.01 wt%, based on the total weight of the cosmetic composition.

[0060] According to an embodiment, the cosmetic composition of the present invention may further include at least one of a preservative, an ion sequestering agent, and a pH adjusting agent.

[0061] According to the embodiment, the preservative may be used without limitation as long as it is a component commonly used in the art. For example, 1,2-hexanediol, ethylhexylglycerin, and pentylene glycol may be used. However, the present invention is not limited thereto.

[0062] In some embodiments, the ion-blocking agent may be any component commonly used in the art without limitation. For example, disodium EDTA may be used. However, this is not a limitation.

[0063] According to the embodiment, the pH adjuster may be used without limitation as long as it is a component commonly used in the art. For example, sodium citrate and citric acid may be used. However, the present invention is not limited thereto.

[0064] According to an embodiment, the cosmetic composition may further include other ingredients commonly used in the art, such as stabilizers, preservatives, ultraviolet absorbers, isotonic agents, bactericides, moisturizers, blocking agents, antioxidants, organic pigments, inorganic pigments, fragrances, vitamins, etc., within a range that does not impair the effects of the present invention. The mixing amount of the above ingredients can be easily selected by those skilled in the art within a range that does not impair the purpose and effects of the present invention.

[0065] According to an embodiment, the cosmetic composition may be a transparent formulation. A transparent formulation can provide the user with a visually clean and refreshing sensation. Furthermore, its light texture allows for gentle application on the skin, and can provide a pleasant experience in hot or humid environments. The cosmetic composition of the present invention can stably contain high concentrations of menthol and non-menthol cooling agents while maintaining a transparent formulation.

[0066] In some embodiments, the cosmetic composition may be a solubilized formulation. Solubilized formulations are similar to oil-in-water formulations, but contain a significantly higher percentage of purified water, and are mixed with a small amount of oil and a solubilizing agent. Solubilized formulations are characterized by a light and refreshing feel when applied. Furthermore, solubilized formulations can be applied to toners, essences, serums, ampoules, packs, immersion sheet masks, cleansing water, or mists, but are not limited thereto.

[0067]

[0068] Hereinafter, examples and experimental examples are presented to explain the present invention more specifically, but the present invention is not limited thereto.

[0069]

[0070] Experimental Example 1. Comparative Experiment According to Cooling Component Content

[0071] (1) Manufacture of examples and comparative examples

[0072] In order to compare the effects according to the content of cooling ingredients, examples and comparative examples of solubilizing formulations were prepared with the compositions shown in Table 1 below. Specifically, based on Example 1, cosmetic compositions of Examples 2 to 6 and Comparative Example 1 were prepared by varying the contents of cooling agents, menthol and methyldiisopropylpropionamide. As the content of cooling ingredients varied, the content of the solubilizing agent was also adjusted to the same ratio as that of the cooling ingredient in order to match the ratio of the content of the cooling ingredient to the content of the solubilizing agent.

[0073]

[0074]

[0075] The specific manufacturing method is as follows.

[0076]

[0077] The components of purified water, xanthan gum, pH adjuster, ion sequestering agent, and preservative were heated and stirred, then cooled to approximately 50 degrees to prepare a first material. Subsequently, a solubilizer and a cooling agent were mixed at approximately 50 degrees and dissolved in a solvent. The dissolved mixture of solubilizer and cooling agent was mixed into the first material, stirred, cooled to approximately 33 degrees, and defoamed to prepare a cosmetic composition.

[0078]

[0079] (2) Evaluation of transparency, formulation stability, cooling effect, and irritation

[0080] The transparency, formulation stability, cooling effect, and irritation of the manufactured examples and comparative examples were evaluated and are shown in Table 2 below.

[0081] 1) Transparency evaluation

[0082] Transparency evaluation of the examples and comparative examples was conducted by visual observation.

[0083] 2) Formulation stability evaluation

[0084] The formulation stability evaluation of the examples and comparative examples was conducted by checking the stability over time by storing the cosmetic compositions at temperatures of 5 degrees, 25 degrees, and 40 degrees for one month, respectively.

[0085] 3) Evaluation of cooling effect and stimulation

[0086] The cooling efficacy of the Examples and Comparative Examples was evaluated through a sensory evaluation with 30 evaluators in their 20s to 40s. After applying the cosmetic compositions of the Examples and Comparative Examples to the evaluators' skin, they were asked to evaluate the cooling sensation and irritation on a scale of 1 (low) to 5 (high), and the average value for each item was calculated.

[0087]

[0088]

[0089] As shown in Table 2 above, Examples 1 to 6, each containing 0.001 to 5 wt% of menthol and methyldiisopropylpropionamide, formed transparent formulations. A photograph of Example 1 was taken and shown in Fig. 1. In addition, Examples 1 to 6 were confirmed to have remarkably excellent cooling sensation and stability, and low irritation.

[0090] On the other hand, Comparative Example 1, which had a lower content of cooling ingredients compared to Examples 1 to 6, was confirmed to have excellent transparency and stability, a weaker stimulation sensation, and a lower cooling sensation.

[0091] Therefore, it was confirmed that when a cooling ingredient is included in a specific amount, a cosmetic composition can be manufactured that forms a transparent and stable formulation and has little irritation and an excellent cooling sensation when used.

[0092]

[0093] Experimental Example 2. Comparative Experiment with and without Two Cooling Agents

[0094] (1) Manufacturing of comparative examples

[0095] In order to evaluate the formulation and efficacy according to the presence or absence of two cooling agents, comparative examples were prepared using the same manufacturing method as Experimental Example 1 with the compositions shown in Table 3 below. Specifically, based on Example 1, Comparative Example 2 excluded menthol from the cooling agent, and Comparative Example 3 excluded methyldiisopropylpropionamide from the cooling agent. In addition, in both Comparative Examples 2 and 3, as the content of the cooling agent was reduced to half, the content of the solubilizer was also reduced to half and prepared. The remaining ingredients and contents are the same.

[0096]

[0097]

[0098] (2) Evaluation of transparency, formulation stability, cooling effect, and irritation

[0099] For the comparative examples manufactured according to Table 3 above, transparency, formulation stability, cooling efficacy, and irritation were evaluated using the same method as Experimental Example 1 above. The results are shown in Table 4 below.

[0100]

[0101]

[0102] As shown in Table 4 above, in the case of Comparative Example 2, which did not contain the cooling agent menthol, it was confirmed that the transparency and stability were excellent, the irritation was mild, but the cooling sensation was also low. Similarly, in the case of Comparative Example 3, which did not contain the cooling agent methyldiisopropylpropionamide, it was confirmed that the transparency and stability were excellent, the irritation was mild, but the cooling sensation was low.

[0103] Therefore, it was confirmed that the combination of two cooling ingredients, menthol and methyldiisopropylpropionamide, is an important component in the manufacture of a cosmetic composition that exhibits an excellent cooling sensation.

[0104]

[0105] Experimental Example 3. Comparative Experiment According to the Ratio of Cooling Ingredient and Solubilizer

[0106] (1) Manufacture of examples and comparative examples

[0107] In order to evaluate the formulation and efficacy according to the ratio of cooling component and solubilizer, examples and comparative examples were prepared using the same manufacturing method as Experimental Example 1 with the compositions shown in Table 5 below. Specifically, based on Example 1, Examples 7 to 8 and Comparative Examples 4 to 7 differ in the contents of solubilizer components octyldodeceth-16 and C12-14 alkene-12, while the remaining components and contents are the same.

[0108]

[0109]

[0110] (2) Evaluation of transparency, formulation stability, cooling effect, and irritation

[0111] Transparency, formulation stability, cooling efficacy, and irritation were evaluated for the examples and comparative examples manufactured according to Table 5 above using the same method as Experimental Example 1. The results are shown in Table 6 below.

[0112]

[0113]

[0114] As shown in Table 6 above, Example 7, in which the weight ratio of the cooling component and the solubilizer was 1:1.5, and Example 8, in which the weight ratio of the cooling component and the solubilizer was 1:6, were confirmed to stably form a transparent formulation, have low irritation, and have excellent formulation stability and cooling sensation.

[0115] On the other hand, Comparative Example 4, in which the ratio of the solubilizer was higher than that of the examples, was found to have excellent transparency, formulation stability, and cooling effect, but had a strong irritation sensation. In addition, Comparative Examples 5 to 7, in which the ratio of the solubilizer was lower than that of the examples, commonly showed a weak irritation sensation, but a transparent and stable formulation was not formed. Specifically, in Comparative Example 5, haze, micro-separation, or separation phenomena were observed in the cosmetic composition stored at temperatures of 5 degrees, 25 degrees, or 40 degrees, respectively. A photograph of Comparative Example 5 was taken and shown in Fig. 2. In addition, in the case of Comparative Examples 6 and 7, the formulation was not transparent and a precipitation phenomenon was observed. A photograph of Comparative Example 6 was taken and shown in Fig. 3. In addition, in the case of Comparative Example 6, it was found that the cooling sensation was also low.

[0116] In addition, it was confirmed that Comparative Examples 4 to 6, despite containing appropriate amounts of cooling ingredients and solubilizers, did not contain the cooling ingredients and solubilizers in an appropriate ratio, resulting in reduced efficacy in terms of stimulation, cooling sensation, and / or stability.

[0117]

[0118] Therefore, in the present invention, it was confirmed that the weight ratio of the solubilizer to the cooling component is an important component in forming a transparent and stable formulation by solubilizing a high content of menthol and non-menthol-based cooling agents and in producing a cosmetic composition with excellent cooling sensation.

[0119]

[0120] Experimental Example 4. Comparative Experiment According to the Ratio of Solubilizers

[0121] (1) Manufacture of examples and comparative examples

[0122] In order to evaluate the formulation and efficacy according to the ratio of solubilizers, examples and comparative examples were prepared using the same manufacturing method as Experimental Example 1 with the compositions shown in Table 7 below. Specifically, based on Example 1, Examples 9 to 10 and Comparative Examples 8 to 9 have different ratios between the two solubilizer components, octyldodeceth-16 and C12-14 alkene-12, and the remaining components and contents are the same.

[0123]

[0124]

[0125] (2) Evaluation of transparency, formulation stability, cooling effect, and irritation

[0126] Transparency, formulation stability, cooling efficacy, and irritation were evaluated for the examples and comparative examples manufactured according to Table 7 above using the same method as Experimental Example 1. The results are shown in Table 8 below.

[0127]

[0128]

[0129] As shown in Table 8 above, Example 9, in which octyldodeceth-16 and C12-14 alkene-12 were in a weight ratio of 1:3, and Example 10, in which octyldodeceth-16 and C12-14 alkene-12 were in a weight ratio of 3:1, were found to have excellent transparency, formulation stability, and cooling effect, but showed weak irritation.

[0130] On the other hand, Comparative Example 8 without octyldodeceth-16 and Comparative Example 9 without C12-14 alkene-12 formed transparent formulations, had low irritation, and excellent cooling sensation, but were confirmed to have low formulation stability. Specifically, haze, micro-foreign matter, or micro-separation were observed in the cosmetic compositions stored at temperatures of 5 degrees, 25 degrees, or 40 degrees, respectively.

[0131] Therefore, it was confirmed that the inclusion of octyldodeceth-16 and C12-14 alkene-12, which are solubilizing agents, in a specific ratio in the present invention is an important component in forming a stable formulation by solubilizing a high content of menthol-based and non-menthol-based cooling agents.

[0132]

[0133] Experimental Example 5. Comparative Experiment According to Solvent Content

[0134] (1) Manufacture of examples and comparative examples

[0135] In order to evaluate the formulation and efficacy according to the solvent content and the ratio of the solvent to the cooling component, examples and comparative examples were prepared using the same manufacturing method as Experimental Example 1 with the compositions shown in Table 9 below. Specifically, based on Example 1, Examples 11 to 13 and Comparative Examples 10 and 11 differ in the content of the solvent, denatured alcohol or 1,3-butylene glycol, and the remaining components and contents are the same.

[0136]

[0137]

[0138] (2) Evaluation of transparency, formulation stability, cooling effect, and irritation

[0139] For the examples and comparative examples manufactured according to Table 9 above, transparency, formulation stability, cooling efficacy, and irritation were evaluated using the same method as Experimental Example 1 above. The results are shown in Table 10 below.

[0140]

[0141]

[0142] As shown in Table 10 above, Examples 11 to 13 formed transparent and stable formulations and exhibited excellent cooling sensations. In addition, they were confirmed to have low irritation.

[0143] On the other hand, Comparative Example 10, which contained less solvent than the range of Examples, formed a transparent and stable formulation and was found to have low irritation, but also had a low cooling sensation. In addition, Comparative Example 11, which contained significantly less solvent than the range of Examples, was formed as a formulation that was transparent but had low stability. Specifically, crystallization, foreign matter, or separation were observed in the cosmetic compositions stored at temperatures of 5 degrees, 25 degrees, or 40 degrees, respectively. In addition, Comparative Example 11 was found to have good irritation, but low cooling sensation.

[0144] In addition, Examples 11 to 13 and Comparative Examples 10 and 11 contained a cooling component content of 1 wt%, and the experimental data can also be interpreted as data on the weight ratio of the solvent to the cooling component. Examples 11 to 13 contained about 10 times or more of the solvent to the cooling component, and through the experimental data, it was confirmed that the content of the solvent or the ratio of the solvent to the cooling component in the present invention is important in producing a cosmetic composition that stably contains a high content of menthol-based and non-menthol-based cooling agents and exhibits excellent cooling efficacy.

[0145]

[0146] Experimental Example 6. Comparative Experiment with and without Thickener

[0147] (1) Manufacturing of comparative examples

[0148] In order to evaluate the formulation and efficacy according to the presence or absence of a thickener, Comparative Example 12 was prepared using the same manufacturing method as Experimental Example 1, except that the thickener was excluded from the ingredients of Example 1. The content of the excluded ingredients was adjusted with purified water, and the remaining ingredients and contents were the same.

[0149]

[0150] (2) Evaluation of transparency, formulation stability, cooling effect, and irritation

[0151] For the above Comparative Example 12, transparency, formulation stability, cooling efficacy, and irritation were evaluated using the same method as in Experimental Example 1. The results are shown in Table 11 below.

[0152]

[0153]

[0154] As shown in Table 11 above, Comparative Example 12, which does not contain the thickening agent xanthan gum, has excellent transparency, stimulation, and cooling sensation, and good stability. However, it was confirmed that fine foreign matter was found in the cosmetic composition stored at 25 degrees.

[0155] Therefore, it was confirmed that the composition of xanthan gum, which is a thickener of the present invention, does not significantly affect transparency, stimulation, and cooling sensation, but can be helpful in terms of stability.

[0156]

[0157] While specific aspects of the present invention have been described in detail above, it will be apparent to those skilled in the art that these specific descriptions merely represent preferred embodiments and are not intended to limit the scope of the present invention. Therefore, the substantial scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. In a cosmetic composition with excellent cooling sensation, Contains cooling ingredients and solubilizers, A cosmetic composition comprising the cooling ingredient and a menthol-based and non-menthol-based cooling agent.

2. In paragraph 1, A cosmetic composition comprising the above menthol-based cooling agent, at least one of menthol and a menthol derivative.

3. In paragraph 1, A cosmetic composition comprising the non-menthol-based cooling agent methyldiisopropylpropionamide.

4. In paragraph 1, A cosmetic composition comprising the solubilizing agent octyldodeceth-16 and C12-14alketh-12.

5. In paragraph 1, A cosmetic composition, wherein the menthol-based cooling agent is contained in an amount of 0.0005 to 5 wt% based on the total weight of the cosmetic composition.

6. In paragraph 1, A cosmetic composition, wherein the non-menthol-based cooling agent is contained in an amount of 0.0005 to 5 wt% based on the total weight of the cosmetic composition.

7. In paragraph 1, A cosmetic composition, wherein the cooling ingredient is included in an amount of 0.001 to 10 wt% based on the total weight of the cosmetic composition.

8. In paragraph 4, A cosmetic composition, wherein the above octyldodeceth-16 is contained in an amount of 0.001 to 10 wt% based on the total weight of the cosmetic composition.

9. In paragraph 4, A cosmetic composition, wherein the C12-14 alkyl-12 is contained in an amount of 0.001 to 10 wt% based on the total weight of the cosmetic composition.

10. In paragraph 4, A cosmetic composition wherein the above octyldodeceth-16 and C12-14alketh-12 are included in a weight ratio of 1:0.25 to 4.

11. In paragraph 1, A cosmetic composition comprising the cooling ingredient and the solubilizer in a weight ratio of 1:1.4 to 8.

12. In paragraph 1, The above cosmetic composition further comprises a solvent, A cosmetic composition wherein the solvent comprises ethanol and polyol.

13. In paragraph 12, A cosmetic composition comprising the cooling ingredient and the solvent in a weight ratio of 1:10 to 65.

14. In paragraph 1, The above cosmetic composition is characterized in that it is transparent.

15. In paragraph 1, A cosmetic composition characterized in that the above cosmetic composition is a solubilized formulation.

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