Ultraviolet light-cutting cosmetic composition whose ultraviolet light-cutting efficiency is increased by ultraviolet light

Abstract

The present invention relates to a UV-cutting cosmetic composition whose UV-cutting efficiency is enhanced by ultraviolet light. Specifically, the present invention relates to a UV-cutting cosmetic composition comprising a UV-cutting agent having a methoxycinnamate structure and a specific weight of a polar oil. The UV-cutting cosmetic composition of the present invention exhibits significantly enhanced UV-cutting efficiency upon exposure to ultraviolet light and provides a remarkably superior feel during use.

Description

Technical Field

[0001] This application claims priority based on Korean Application No. 10-2019-0023391 filed on February 27, 2019, Korean Application No. 10-2019-0037278 filed on March 29, 2019, Korean Application No. 10-2019-0106892 filed on August 29, 2019, and Korean Application No. 10-2019-0106893 filed on August 29, 2019, and incorporates all contents disclosed in the specifications and drawings of those applications into this application.

[0002] The present invention relates to an ultraviolet-ray cutting cosmetic composition whose ultraviolet-ray cutting efficiency is enhanced by ultraviolet rays. Background Art

[0003] Ultraviolet rays from sunlight are the main cause of skin erythema or swelling, freckles or skin cancer. Recently, many studies on various skin diseases caused by ultraviolet rays are being actively carried out. Generally, ultraviolet rays are divided into UV-C with a wavelength of 200-280nm, UV-B with a wavelength of 280-320nm or UV-A with a wavelength of 320-400nm according to their wavelength. When UV-C passes through the ozone layer, it disappears without reaching the ground surface, while UV-B penetrates into the epidermis of the skin, causing erythema, freckles or swelling, etc. It is known that UV-A penetrates into the dermis of the skin, causing skin cancer and skin aging (for example, promoting the formation of wrinkles, melanin, etc.) and skin irritation. Most epidemiological studies have shown that there is a strong relationship between sunlight exposure and human skin cancer.

[0004] As a result of the above-mentioned dangers associated with sun exposure, public concern about UV-cutting products has increased, and as a result, UV-cutting products with various SPFs (ultraviolet cut-off factors) have been released. UV-cutting products contain inorganic UV-cutting agents such as titanium dioxide or zinc oxide, or organic UV-cutting agents such as ethylhexyl methoxycinnamate, ethylhexyl salicylate, octocrylene, butyl methoxydibenzoylmethane, bis-ethylhexyloxyphenol methoxyphenyl triazine, or diethylaminohydroxybenzoyl hexyl benzoate, etc., to achieve higher SPF values.

[0005] Ultraviolet-cutting cosmetics may reduce their ultraviolet-cutting efficiency due to ultraviolet rays. In particular, the problem with ultraviolet-cutting agents with a methoxycinnamate structure, i.e., ethylhexyl methoxycinnamate, isoamyl p-methoxycinnamate, or cinoxate, is that as the trans structure is converted to a cis structure due to ultraviolet rays, the efficiency of absorbing light in the ultraviolet region decreases. If the ultraviolet-cutting efficiency decreases, it may not be possible to effectively cut off ultraviolet rays, thereby inducing skin aging or various skin diseases. Moreover, if the skin is exposed to sunlight for a longer time as outdoor activities increase, it may cause the inconvenience of needing to apply ultraviolet-cutting cosmetics multiple times. In order to solve this problem, it is necessary to develop a method to prevent the effect of the ultraviolet-cutting agent itself having a methoxycinnamate structure from being reduced in the ultraviolet-cutting cosmetic composition, or a method to further enhance the effect even when the same amount is used. Summary of the Invention

[0006] Issues to be addressed

[0007] The problem to be solved by the present invention is to provide a UV-cutting cosmetic composition in which the UV-cutting efficiency of a UV-cutting agent having a methoxycinnamate structure is not reduced when exposed to UV light, but rather the UV-cutting efficiency is increased by the UV light.

[0008] Solutions to Problems

[0009] The inventors of the present invention conducted intensive research to solve the problems of the prior art described above and surprisingly found that when a cosmetic composition containing an ultraviolet cutting agent having a methoxycinnamate structure is exposed to ultraviolet rays under specific conditions, the ultraviolet cutting efficiency is actually increased, thereby completing the present invention.

[0010] The inventors of the present invention have found that the intermolecular distance of methoxycinnamate can be adjusted by changing the content of polar oil or hydrocarbon oil in the cosmetic composition comprising the above-mentioned ultraviolet cutter. Specifically, when the intermolecular distance is far away, the trans-structured methoxycinnamate molecule becomes a cis-structure due to ultraviolet rays, so the ultraviolet absorption capacity can be significantly reduced. However, when the intermolecular distance is close enough, a variety of photoreactants including dimers can be generated when exposed to ultraviolet rays. The π-π* transition energy level changes due to π-π stacking with the photoreactants generated in this way, thereby also expanding the wavelength region of energy that can be absorbed. The cosmetic composition comprising the ultraviolet cutter of the present invention not only has a significantly increased absorbance than before ultraviolet irradiation in the wavelength region of UV-A (320 to 400nm) and UV-B (280 to 320nm), but also a significantly increased SPF value.

[0011] The present invention provides a UV-cutting cosmetic composition comprising a UV-cutting agent having a methoxycinnamate structure and a polar oil. Furthermore, the present invention provides a UV-cutting cosmetic composition comprising a UV-cutting agent having a methoxycinnamate structure and a hydrocarbon oil. The UV-cutting agent having a methoxycinnamate structure may include at least one selected from the group consisting of ethylhexyl methoxycinnamate, isoamyl p-methoxycinnamate, and cinoxate. The amount of the UV-cutting agent having a methoxycinnamate structure may be 2 to 30% by weight, preferably 2 to 25% by weight, and more preferably 2 to 20% by weight, based on the total weight of the composition. If the amount of the UV-cutting agent having a methoxycinnamate structure is less than 2% by weight relative to the total weight of the composition, the SPF may be reduced due to UV rays. If the amount exceeds 30% by weight, the stability of the cosmetic formulation may be impaired.

[0012] In one embodiment, the polar oil may be an ester-based oil or a triglyceride, and specifically, may include any one or more of the group consisting of, but not limited to, cetylethylhexanoate, caprylic / capric glycerides, phenethyl benzoate, dicaprylylcarbonate, C12-15 alkyl benzoate, and octocrylene. The polar oil may be present in an amount of 5% by weight or less, preferably 0.01 to 5% by weight, more preferably 0.05 to 4% by weight, relative to the total weight of the composition, or most preferably, may not contain a polar oil. When the polar oil exceeds 5% by weight, the SPF increase effect caused by ultraviolet rays disappears.

[0013] In one embodiment, the UV-cutting cosmetic composition comprising a UV-cutting agent having a methoxycinnamate structure and a polar oil of the present invention may further comprise a hydrocarbon oil. In this case, the UV-cutting effect is significantly increased and the skin is excellent in spreadability. The hydrocarbon oil may comprise any one or more selected from the group consisting of liquid paraffin, hard liquid isoparaffin, heavy liquid isoparaffin, vaseline, normal paraffin, mineral oil, isoparaffin, isododecane, isohexadecane, polyisobutene, hydrogenated polyisobutene, polybutene, ozokerite, ceresin, microcrystalline wax, paraffin, polyethylene wax, polyethylene / polypropylene wax, squalane, squalene, pristane, and polyisoprene, but is not limited thereto.

[0014] The hydrocarbon oil may be present in an amount of 5 to 30% by weight, preferably 5.1 to 30% by weight, 5.5 to 30% by weight, 6 to 30% by weight, 6.5 to 30% by weight, or 7 to 30% by weight, relative to the total weight of the composition. Preferably, the hydrocarbon oil may be present in an amount of 5 to 25% by weight, more preferably 5.1 to 25% by weight, 5.5 to 25% by weight, 6 to 25% by weight, 6.5 to 25% by weight, or 7 to 25% by weight, relative to the total weight of the composition. Preferably, the hydrocarbon oil may be present in an amount of 5 to 15% by weight, more preferably 5.1 to 15% by weight, 5.5 to 15% by weight, 6 to 15% by weight, 6.5 to 15% by weight, or 7 to 15% by weight, relative to the total weight of the composition. If the hydrocarbon oil content is less than 5% by weight, the feel may be too dry and may not meet the basic cosmetic quality standards. If the hydrocarbon oil content exceeds 30% by weight, the stability of the formulation may be impaired.

[0015] In one embodiment, the UV-cutting cosmetic composition of the present invention may further include silicone oil. In this case, the UV-cutting efficiency is significantly increased by UV rays and also contributes to an improved feel. However, as mentioned above, under conditions where the content of polar oil is limited, silicone oil is not compatible with UV-cutting agents having a methoxycinnamate structure, so excessive inclusion is not preferred. The UV-cutting cosmetic composition of the present invention may be substantially free of silicone oil and may include silicone oil in an amount of 15% by weight or less, preferably 10% by weight or less, more preferably 5% by weight or less, and even more preferably 3% by weight or less, relative to the total weight of the composition. The silicone oil may be one or more selected from the group consisting of cyclotetrasiloxane, cyclopentasiloxane, cyclohexasiloxane, polydimethylsiloxane, polydimethylsiloxane, and phenyl trimethicone, but is not limited thereto. The UV-cutting agent contained in the cosmetic composition of the present invention, namely ethylhexyl methoxycinnamate or isoamyl p-methoxycinnamate, is not compatible with silicone oil, so if more than 15% by weight of silicone oil is included, stability at room temperature may be reduced.

[0016] In one embodiment, the UV-cutting cosmetic composition of the present invention may contain a UV-cutting agent having a methoxycinnamate structure and a polar oil at a weight ratio of 1:0.01 to 1, preferably 1:0.01 to 0.8, more preferably 1:0.01 to 0.6, more preferably 1:0.01 to 0.4, and even more preferably 1:0.01 to 0.2 (UV-cutting agent having a methoxycinnamate structure: polar oil), or most preferably, may not contain a polar oil. When the weight of the polar oil exceeds the above weight ratio range, the effect of increasing the UV-cutting efficiency due to ultraviolet rays does not occur.

[0017] In one embodiment, the UV-cutting cosmetic composition of the present invention may contain a UV-cutting agent having a methoxycinnamate structure and a hydrocarbon oil in a weight ratio of 1:0.2 to 15, preferably 1:0.2 to 8, and more preferably 1:0.2 to 3 (UV-cutting agent having a methoxycinnamate structure: hydrocarbon oil). The hydrocarbon oil may be included in an appropriate weight ratio with the UV-cutting agent, in an amount of 5% or more relative to the total weight of the composition, to enhance the feel of the cosmetic composition. Exceeding this range may impair the UV-cutting efficiency caused by ultraviolet rays or the feel of the cosmetic composition.

[0018] In one embodiment, when the UV-shielding cosmetic composition of the present invention contains both a polar oil and a hydrocarbon oil, the polar oil and hydrocarbon oil may be contained in a weight ratio (polar oil:hydrocarbon oil) of 1:1 to 300, preferably 1:1 to 200, and more preferably 1:1 to 100. If the weight ratio of the polar oil to the hydrocarbon oil exceeds the above range, the UV-shielding efficiency caused by ultraviolet rays or the feel of the cosmetic composition during use may be reduced.

[0019] In one embodiment, the UV-shielding cosmetic composition of the present invention may further include an inorganic UV-shielding agent. Such an inorganic UV-shielding agent may be, but is not limited to, titanium dioxide, zinc oxide, or iron oxide. Furthermore, the UV-shielding cosmetic composition of the present invention may further include, but is not limited to, a moisturizer, a thickener, a surfactant, an emulsion base, a preservative, an antioxidant, an alcohol, a fragrance, a pH adjuster, or a natural extract.

[0020] The cosmetic composition of the present invention can also be prepared in any dosage form commonly prepared in the art, for example, it can be formulated into a solution, suspension, emulsion, paste, gel, cream, skin care lotion, soap, surfactant-containing cleanser or oil, etc., but is not limited thereto. More specifically, it can be prepared into a dosage form such as a softening lotion, a nourishing lotion, a toner, a nourishing cream, an emulsion, a cosmetic ointment, a massage cream, an essence, an eye cream, a makeup remover, a facial cleanser, a makeup remover, a facial mask, a gel, a primer, a foundation, a spray or a powder. In one embodiment, the ultraviolet light-cutting cosmetic composition of the present invention can be an emulsion dosage form, such as a water-in-oil (W / O) dosage form or an oil-in-water (O / W) dosage form.

[0021] In one embodiment, the present invention provides a UV-cutting cosmetic composition comprising 2 to 30% by weight of a UV-cutting agent having a methoxycinnamate structure, 5% or less by weight of a polar oil, and 5 to 30% by weight of a hydrocarbon oil, relative to the total weight of the composition. Upon exposure to UV light, the composition exhibits significantly enhanced UV-cutting properties and a remarkably superior feel.

[0022] The UV-shielding cosmetic composition of the present invention significantly increases SPF after UV irradiation, specifically by 3 to 80%, preferably 5 to 77%, compared to before UV irradiation. The UV-shielding cosmetic composition of the present invention enhances UV-A (320 to 400 nm) and UV-B (280 to 320 nm) shielding effects after UV irradiation, preferably significantly enhancing UV-B shielding effects.

[0023] The present invention provides a method for preparing a UV-cutting cosmetic composition, comprising the step of mixing a UV-cutting agent having a methoxycinnamate structure with a polar oil in an amount of 5% by weight or less relative to the total weight of the composition. In one embodiment, the preparation method may further include the step of mixing with a hydrocarbon oil. The above preparation method is also applicable to the UV-cutting cosmetic composition described above.

[0024] On the other hand, the inventors of the present invention have discovered that by including a specific amount of polar oil in a cosmetic composition containing the above-mentioned UV cutter and preparing the cosmetic composition in an oil-in-water (O / W) formulation, the intermolecular distance of methoxycinnamate can be adjusted to be closer, thereby increasing the UV cutoff efficiency when exposed to UV rays.

[0025] The present invention provides a UV-cutting cosmetic composition comprising a UV-cutting agent having a methoxycinnamate structure and a polar oil, wherein the UV-cutting agent comprises isoamyl p-methoxycinnamate. In addition to isoamyl p-methoxycinnamate, the UV-cutting agent may further comprise ethylhexyl methoxycinnamate, cinoxate, or a mixture thereof. The UV-cutting agent having a methoxycinnamate structure may be present in an amount of 2 to 30% by weight, preferably 2 to 25% by weight, and more preferably 2 to 20% by weight, relative to the total weight of the composition. If the UV-cutting agent having a methoxycinnamate structure is present in an amount of less than 2% by weight relative to the total weight of the composition, the SPF may be reduced due to UV rays. If the amount exceeds 30% by weight, the stability of the cosmetic formulation may be compromised.

[0026] In one embodiment, the content of isoamyl p-methoxycinnamate may be 2 to 30% by weight, preferably 2 to 25% by weight, and more preferably 2 to 20% by weight, relative to the total weight of the composition. When the content of isoamyl p-methoxycinnamate is less than 2% by weight, the SPF may be reduced due to ultraviolet rays, while when the content exceeds 30% by weight, the stability of the cosmetic formulation may be inhibited.

[0027] In one embodiment, the polar oil may be an ester-based oil or a triglyceride, and thus, a UV cutter having a methoxycinnamate structure may be excluded. Specifically, the polar oil may include at least one selected from the group consisting of cetylethylhexanoate, caprylic / capric glycerides, phenethyl benzoate, dicaprylyl carbonate, C12-15 alkyl benzoate, octocrylene, and phenyl trimethicone, but is not limited thereto.

[0028] In one embodiment, the polar oil content may be equal to or less than the isoamyl p-methoxycinnamate content. Alternatively, the polar oil content may be 0.01 to 30% by weight, preferably 0.01 to 25% by weight, and more preferably 0.01 to 20% by weight, relative to the total weight of the composition. Alternatively, the polar oil may not be included in the UV-shielding cosmetic composition of the present invention. When the polar oil content exceeds the isoamyl p-methoxycinnamate content, the SPF-enhancing effect caused by UV rays disappears.

[0029] In one embodiment, the UV-cutting cosmetic composition of the present invention may include a UV-cutting agent having a methoxycinnamate structure and a polar oil at a weight ratio of 1:0.01 to 0.7, preferably 1:0.01 to 0.5, and more preferably 1:0.01 to 0.3 (UV-cutting agent having a methoxycinnamate structure: polar oil). Alternatively, the UV-cutting cosmetic composition of the present invention may include isoamyl p-methoxycinnamate and a polar oil at a weight ratio of 1:0.01 to 0.7, preferably 1:0.01 to 0.5, and more preferably 1:0.01 to 0.3 (isoamyl p-methoxycinnamate: polar oil). When the weight of the polar oil exceeds the above weight ratio range, the UV-cutting efficiency does not increase due to ultraviolet rays.

[0030] In one embodiment, the UV-cutting cosmetic composition may further include a non-polar oil, such as a hydrocarbon oil, silicone oil, or a mixture thereof. When the UV-cutting cosmetic composition includes a hydrocarbon oil, it has excellent skin application and can enhance the UV-cutting effect. The hydrocarbon oil may include, but is not limited to, any one or more selected from the group consisting of isododecane, isohexadecane, mineral oil, hydrogenated polydecene, and squalane. Furthermore, when the UV-cutting cosmetic composition also includes silicone oil, the UV-cutting efficiency is significantly increased due to UV rays and also contributes to an improved feel. The silicone oil may be, but is not limited to, one or more selected from the group consisting of cyclotetrasiloxane, cyclopentasiloxane, cyclohexasiloxane, dimethicone, dimethiconol, and phenyl trimethicone.

[0031] The UV-cutting cosmetic composition of the present invention may contain a non-polar oil in an amount of 20% by weight or less, preferably 15% by weight or less, more preferably 5% by weight or less, and even more preferably 3% by weight or less, relative to the total weight of the composition. The amount of the non-polar oil may be 0.01 to 20% by weight, preferably 5.0 to 20% by weight, or 5.1 to 20% by weight, relative to the total weight of the composition. Preferably, the amount of the non-polar oil may be 0.01 to 10% by weight, more preferably 5.0 to 10% by weight, or 5.1 to 10% by weight, relative to the total weight of the composition. When the amount of the non-polar oil is less than 0.01% by weight relative to the total weight of the composition, the feel may be too dry and may not meet the basic quality standards of the cosmetic. When the amount exceeds 20% by weight, the stability of the formulation may be inhibited.

[0032] In one embodiment, the UV-cutting cosmetic composition of the present invention may be in the form of an emulsion, preferably an oil-in-water (O / W) formulation. When the UV-cutting cosmetic composition of the present invention is prepared as an O / W formulation containing the aforementioned specific amount of polar oil, the UV-cutting efficiency is significantly increased after UV irradiation.

[0033] In one embodiment, the present invention provides an oil-in-water UV-cutting cosmetic composition comprising a UV-cutting agent having a methoxycinnamate structure and a polar oil. The UV-cutting agent comprises isoamyl p-methoxycinnamate, and the amount of the UV-cutting agent is 2 to 30% by weight relative to the total weight of the composition. Furthermore, the amount of the polar oil is equal to or less than the amount of isoamyl p-methoxycinnamate. After irradiation with UV light, the composition exhibits significantly enhanced UV-cutting effects and a significantly superior feel during use.

[0034] The UV-shielding cosmetic composition of the present invention significantly increases SPF after UV irradiation, specifically by 3 to 80%, preferably 5 to 77%, compared to before UV irradiation. The UV-shielding cosmetic composition of the present invention enhances UV-A (320 to 400 nm) and UV-B (280 to 320 nm) shielding effects after UV irradiation, preferably significantly enhancing UV-B shielding effects.

[0035] The present invention provides a method for preparing a UV-cutting cosmetic composition, comprising the step of mixing a UV-cutting agent having a methoxycinnamate structure and a polar oil, wherein the UV-cutting agent comprises isoamyl p-methoxycinnamate, and the content of the polar oil is equal to or less than the content of isoamyl p-methoxycinnamate. The above-mentioned preparation method can also be applied to the above-mentioned UV-cutting cosmetic composition.

[0036] Effects of the Invention

[0037] When exposed to ultraviolet light, the UV-blocking cosmetic composition of the present invention significantly increases its UV-blocking efficiency, particularly its UV-A (320 to 400 nm) and UV-B (280 to 320 nm) blocking effects. Furthermore, the UV-blocking cosmetic composition of the present invention contains a specific amount of hydrocarbon oil, resulting in a significantly improved feel during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 The results show the increase rate of ultraviolet cutoff in one example (Example 8) of the present invention.

[0039] Figure 2 1 is the absorbance change result before and after ultraviolet irradiation according to one embodiment (Example 8) of the present invention.

[0040] Figure 3 1 is the result of absorbance change before and after ultraviolet irradiation according to one embodiment of the present invention (Example 13).

[0041] Figure 4 This is the result of the absorbance change before and after ultraviolet irradiation according to Comparative Example 11. DETAILED DESCRIPTION

[0042] The following is a detailed description of the present invention using examples to facilitate understanding. However, the embodiments of the present invention may be modified into various other forms, and the scope of the present invention should not be construed as being limited to the following examples. The embodiments of the present invention are provided to more fully illustrate the present invention to those skilled in the art.

[0043] Experimental Example 1: UV-cutting effect before and after UV irradiation

[0044] The five representative UV cutters listed in Table 1 below were used at 1.3 mg / cm 2 The coating was applied to a PMMA plate (HelioScreen Labs, HD6) and the in vitro SPF was measured before and after 2 MED exposure using a UV pre-irradiator (solar simulator 16S, Solar Light Company) using an SPF-290S (Optomertrics Corporation). In vitro SPF was measured on six different sections of the PMMA plate, and the average value was used. The results are shown in Table 1 below.

[0045] Table 1

[0046]

[0047] *OMC:Ethylhexyl methoxycinnamate / IMC:Isoamyl p-methoxycinnamate

[0048] As a result, the in-vitro SPF value increased for OMC or IMC having a methoxycinnamate structure, whereas no significant change was observed for the other UV cutters.

[0049] Experimental Example 2: UV Cutting Effects Based on OMC and IMC Contents

[0050] UV-blocking cosmetics were prepared using the ingredients shown in Table 2 below. Items A and B were prepared separately and heated to 75°C. Item B was slowly added to Item A, emulsified for 5 minutes using a homogenizer, and then cooled to 30°C. The SPF values of each of the prepared samples were measured before and after UV irradiation using the same method as in Experimental Example 1. The results are shown in Table 3 below.

[0051] Table 2

[0052]

[0053] *OMC:Ethylhexyl methoxycinnamate / IMC:Isoamyl p-methoxycinnamate

[0054] Table 3

[0055] SPF (before UV exposure) SPF (after UV exposure) SPF change SPF change rate (%) Comparative Example 1 2.18±0.32 1.75±0.24 -0.43 -19.72 Example 1 2.7±0.31 3.09±0.22 0.39 14.44 Example 2 3.93±0.4 4.02±0.53 0.09 2.29 Example 3 4.46±0.72 5.88±0.63 1.42 31.84 Example 4 6.31±0.89 7.85±0.89 1.54 24.41 Example 5 6.62±1.64 11.68±1.45 5.06 76.44 Example 6 7.66±1.44 13.45±1.44 5.79 75.59

[0056] When the content of OMC and IMC was less than 2 wt % as in Comparative Example 1, SPF was reduced by ultraviolet rays, but when the content of OMC and IMC was 2 wt % or more as in Examples 1 to 6, SPF was increased by ultraviolet rays.

[0057] Experimental Example 3: Ultraviolet Cutting Effect by Silicone Oil Content

[0058] Samples having the compositions shown in Table 4 below were prepared by the same method as above. For each sample, in-vitro SPF was measured before and after UV irradiation by the same method, and the values before and after UV were compared and shown in Table 5 below.

[0059] Table 4

[0060]

[0061] *OMC:Ethylhexyl methoxycinnamate / IMC:Isoamyl p-methoxycinnamate / D5:Cyclopentasiloxane / BEMT:Bis-ethylhexyloxyphenol methoxyphenyl triazine / AbilEM180:Cetyl PEG / PPG-10 / 1Dimethicone

[0062] Table 5

[0063] SPF (before UV exposure) SPF (after UV exposure) SPF change SPF change rate (%) Comparative Example 2 28.74±13.97 38.45±23.03 9.71 33.79 Comparative Example 3 30.77±17.47 44.65±27.46 13.88 45.11 Comparative Example 4 30.68±15.55 40.62±23.05 9.94 32.40 Comparative Example 5 37.67±16.54 46.31±24.51 8.64 22.94

[0064] Experiments were conducted to determine the effects of the present invention depending on the silicone oil content. As shown in Comparative Examples 2 to 5, the effects of the present invention were maintained even when the silicone oil content was increased. However, the compatibility of silicone oil with OMC and IMC was not good, resulting in a slight decrease in stability.

[0065] Experimental Example 4: UV Cutting Effect Depending on the Content of Hydrocarbon Oil

[0066] Samples having the compositions shown in Table 6 below were prepared by the same method as above. For each sample, in-vitro SPF was measured before and after UV irradiation by the same method, and the values before and after UV were compared and shown in Table 7 below.

[0067] Table 6

[0068]

[0069] *OMC:Ethylhexyl methoxycinnamate / IMC:Isoamyl p-methoxycinnamate / BEMT:Bis-ethylhexyloxyphenol methoxyphenyl triazine / Abil EM 180:Cetyl PEG / PPG-10 / 1Dimethicone / Olivem 900:sorbitan olivate

[0070] Table 7

[0071]

[0072] Experiments were conducted to determine the effects of the present invention depending on the type and content of hydrocarbon oil. The experimental results from Comparative Examples 6 to 9 and Examples 9 to 12 show that the present invention exhibits excellent SPF-enhancing effects regardless of the type and content of the hydrocarbon oil. However, in Comparative Examples 6 to 9, where the hydrocarbon oil content was less than 5%, the application felt excessively dry and failed to meet the basic cosmetic quality standards. In Examples 9 to 12, where the hydrocarbon content was 5% or greater, the SPF-enhancing effect was significantly superior, and the spreadability on the skin was also remarkably good.

[0073] The changes in absorbance in the ultraviolet region before and after ultraviolet irradiation of Example 8 are shown in FIG. Figure 2 The absorbance was measured using the data of SPF-290S (Optomertrics Corporation) to measure in-vitro SPF. The absorbance before ultraviolet irradiation of Example 8 is represented by a solid line, and the absorbance after ultraviolet irradiation is represented by a dotted line. Figure 2 As shown, it was confirmed that the absorbance of the entire ultraviolet region increased with ultraviolet irradiation in Example 8. The increase in SPF value after UV irradiation may be due to the significant increase in absorbance in the UV-A (320 to 400 nm) and UV-B (280 to 320 nm) regions, especially the UV-B region.

[0074] Experimental Example 5: Ultraviolet Cutting Effect Depending on the Content of Polar Oil

[0075] Samples having the compositions shown in Table 8 below were prepared by the same method as above. For each sample, in-vitro SPF was measured before and after UV irradiation by the same method, and the values before and after UV were compared and shown in Table 9 below.

[0076] Table 8

[0077]

[0078] *OMC:Ethylhexyl methoxycinnamate / IMC:Isoamyl p-methoxycinnamate / BEMT:Bis-ethylhexyloxyphenol methoxyphenyl triazine / Abil EM 180:Cetyl PEG / PPG-10 / 1Dimethicone / Olivem 900:Sorbitan olivate

[0079] Table 9

[0080]

[0081] Experiments were conducted to determine the effects of the present invention depending on the type and content of polar oil. As shown in Examples 13 and 14, when the polar oil content was 5% or less, the UV blocking effect was significantly improved. However, when the polar oil content was 5% or more, as in Comparative Examples 10 to 13, no improvement in UV blocking efficiency was observed.

[0082] The absorbance graphs before and after ultraviolet irradiation of Example 13 are shown in FIG. Figure 3 From the absorbance graph, it can be confirmed that the UV-cutting efficiency increases across the entire UV range.

[0083] The absorbance before and after ultraviolet irradiation of Comparative Example 11 is shown in FIG. Figure 4 In. From Figure 4 From the absorbance change of Comparative Example 11 shown, it can be seen that there is almost no absorbance change due to ultraviolet rays, but rather a slight decrease in absorbance occurs in the UVB region.

[0084] Experimental Example 6: UV Cutting Effects by Type and Content of Polar Oil

[0085] Samples having the compositions shown in Table 10 below were prepared by the same method as above. For each sample, in-vitro SPF was measured before and after UV irradiation by the same method, and the values before and after UV were compared and shown in Table 11 below.

[0086] Table 10

[0087]

[0088] *OMC:Ethylhexyl methoxycinnamate / IMC:Isoamyl p-methoxycinnamate / BEMT:Bis-ethylhexyloxyphenol methoxyphenyl triazine / Abil EM 180:Cetyl PEG / PPG-10 / 1Dimethicone / Olivem 900:Sorbitan olivate

[0089] Table 11

[0090]

[0091] Experiments were conducted to determine the UV-blocking effect depending on the type and content of a wider range of polar oils. As shown in Examples 15 to 19, when the polar oil content was 5% or less, the UV-blocking effect was significantly improved before and after UV irradiation. However, when the polar oil content exceeded 5%, as shown in Comparative Examples 14 to 18, no improvement in the UV-blocking effect was observed.

[0092] Experimental Example 7: UV Cutting Effect by Type of Oil in Water

[0093] UV-blocking cosmetics having the composition shown in Table 12 below were prepared as follows. Raw materials in item A were thoroughly mixed at 75°C. Raw material 11 was added to raw material 10 and dispersed for 30 minutes using a dispersant. The remaining raw materials in item B were added and heated to 75°C. While slowly adding item A to item B, the mixture was emulsified using a homogenizer for 10 minutes and then cooled to 30°C.

[0094] Table 12

[0095]

[0096] *OMC:Ethylhexyl methoxycinnamate / IMC:Isoamyl p-methoxycinnamate / BEMT:Bis-ethylhexyloxyphenol methoxyphenyl triazine

[0097] For each sample, the SPF value before and after UV irradiation was measured by the same method as in Experimental Example 1, and the results are summarized and shown in Table 13 below.

[0098] Table 13

[0099] SPF (before UV exposure) SPF (after UV exposure) SPF change SPF change rate (%) Example 20 14.46±2.21 20.84±3.53 6.38 44.12 Comparative Example 19 8.02±1.43 7.15±1.38 -0.87 -10.85 Comparative Example 20 12.07±2 11.07±2.01 -1.00 -8.29 Example 21 8.39±0.11 14.83±1.59 6.44 76.76 Example 22 18.1±2.96 27.71±4.85 9.61 53.09 Example 23 17.61±1.91 22.58±2.1 4.97 28.22

[0100] In Example 20, which contained no oil, or Examples 21 to 23, which contained nonpolar oil, the in-vitro SPF value increased due to ultraviolet radiation. However, in Comparative Examples 19 and 20, which contained 10% by weight of polar oil, the in-vitro SPF value decreased due to ultraviolet radiation. These results confirm that, unlike nonpolar oils, the content of polar oils must be limited in order for the UV-shielding cosmetic composition of the present invention to exhibit excellent UV-shielding effects.

[0101] Experimental Example 8: UV Cutting Effect of OMC and IMC Oil in Oil-in-Water Type

[0102] UV-blocking cosmetics having the compositions listed in Tables 14 and 15 below were prepared as follows. The raw materials in item A were thoroughly mixed at 75°C. Raw material 7 was added to raw material 6 and dispersed for 30 minutes using a dispersant. The remaining raw materials in item B were added and heated to 75°C. While slowly adding item A to item B, the mixture was emulsified using a homogenizer for 10 minutes and then cooled to 30°C.

[0103] Table 14

[0104]

[0105] *OMC:Ethylhexyl methoxycinnamate / IMC:Isoamyl p-methoxycinnamate / CEH:Cetyl ethylhexanoate / BEMT:Bis-ethylhexyloxyphenol methoxyphenyl triazine

[0106] Table 15

[0107]

[0108] *OMC:Ethylhexyl methoxycinnamate / IMC:Isoamyl p-methoxycinnamate / CEH:Cetyl ethylhexanoate / BEMT:Bis-ethylhexyloxyphenol methoxyphenyl triazine

[0109] Each sample was heated at 1.3 mg / cm 2A coating of 100 μg of the film was applied to a PMMA plate (HelioScreen Labs, HD6). The in vitro SPF values before and after irradiation with 321 nm wavelength light at 2 MED using the experimental UV irradiation device, Bio-Sun (Vilber Lourmat), are shown in Tables 16 and 17. The in vitro SPF was calculated using the following formula using absorbance measured with a spectrophotometer (Epoch). The absorbance was measured at nine different points on the PMMA plate, and the average SPF value calculated from each absorbance was used.

[0110]

[0111] E λ :Erythemal action spectrum

[0112] S λ :Spectral irradiance(W / m 2 / nm)

[0113] T λ :Transmittance

[0114] Table 16

[0115] SPF (before UV exposure) SPF (after UV exposure) SPF change SPF change rate (%) Example 24 6.08±0.86 7.1±1.17 1.02 16.78 Comparative Example 21 6.9±1.03 6.34±1.02 -0.56 -8.12 Comparative Example 22 4.98±0.26 4.22±0.22 -0.76 -15.26 Comparative Example 23 6.15±0.83 5.2±0.6 -0.95 -15.45 Example 25 7.66±0.84 7.86±1.00 0.20 2.61 Example 26 8.06±0.59 8.44±0.6 0.38 4.71 Example 27 7.25±0.59 7.62±0.57 0.37 5.10 Example 28 6.76±0.74 7.36±0.93 0.60 8.88 Example 29 6.84±0.78 7.33±0.89 0.49 7.16 Example 30 4.73±0.73 5.74±0.93 1.01 21.35

[0116] Table 17

[0117] SPF (before UV exposure) SPF (after UV exposure) SPF change SPF change rate (%) Example 31 22.09±2.26 23.79±2.57 1.70 7.70 Example 32 21.79±0.96 24.95±1.02 3.16 14.50 Example 33 11.12±1.23 12.18±1.41 1.06 9.53 Example 34 8.46±1.88 8.12±2.04 -0.34 -4.02 Example 35 22.29±3.24 23.64±3.25 1.35 6.06 Example 36 20.07±2.18 21.35±2.36 1.28 6.38 Example 37 21.38±2.67 22.07±2.53 0.69 3.23 Example 38 23.37±1.89 26.49±2.15 3.12 13.35 Example 39 22.05±2.46 25.13±2.74 3.08 13.97 Example 40 24.41±2.91 27.47±3.01 3.06 12.54

[0118] In Comparative Examples 21 to 23, which used OMC alone, even with only a small amount of polar oil, the SPF value decreased after UV irradiation, eliminating the effects of the present invention. In Examples 25 to 30, which additionally contained non-polar oil in OMC, it was confirmed that the UV blocking efficiency increased. In Examples 32 to 34, which used IMC alone, the negative effects of polar oil were significantly reduced. In Examples 35 to 40, which additionally contained non-polar oil in IMC, it was confirmed that the UV blocking efficiency increased due to UV rays.

[0119] Experimental Example 9: UV-cutting effect of IMC and polar oil in oil-in-water type

[0120] UV-shielding cosmetics having the compositions shown in Tables 18 and 19 below were prepared as follows. Raw materials A were thoroughly mixed at 75°C. Raw material 7 was added to raw material 6 and dispersed for 30 minutes using a dispersant. Raw material 8 was then added and heated to 75°C. While slowly adding raw material A to raw material B, the mixture was emulsified for 10 minutes using a homogenizer and cooled to 30°C.

[0121] Table 18

[0122]

[0123] *OMC:Ethylhexyl methoxycinnamate / IMC:Isoamyl p-methoxycinnamate / CEH:Cetyl ethylhexanoate / BEMT:Bis-ethylhexyloxyphenol methoxyphenyl triazine

[0124] Table 19

[0125]

[0126] *OMC:Ethylhexyl methoxycinnamate / IMC:Isoamyl p-methoxycinnamate / CEH:Cetyl ethylhexanoate / BEMT:Bis-ethylhexyloxyphenol methoxyphenyl triazine

[0127] Each sample was heated at 1.3 mg / cm 2 A 200 μl film was coated onto a PMMA plate (HelioScreen Labs, HD6). The in-vitro SPF values before and after 2 MED irradiation using a suntest XLS+ (solar simulator) are shown in Table 20 below. The in-vitro SPF was calculated using the following formula using absorbance measured with a spectrophotometer (Epoch). The absorbance was measured at nine different points on the PMMA plate, and the average SPF value calculated from each absorbance was used.

[0128]

[0129] E λ :Erythemal action spectrum

[0130] S λ:Spectral irradiance(W / m 2 / nm)

[0131] T λ :Transmittance

[0132] Table 20

[0133] SPF (before UV exposure) SPF (after UV exposure) SPF change SPF change rate (%) Comparative Example 24 4.67±0.44 4.33±0.49 -0.34 -7.27 Comparative Example 25 4.91±0.53 4.7±0.35 -0.22 -4.42 Comparative Example 26 5.87±1.09 5.04±0.94 -0.82 -14.06 Comparative Example 27 6.15±0.45 5.37±0.76 -0.79 -12.79 Example 41 6.37±0.68 10.13±1.8 3.76 58.99 Comparative Example 28 6.18±0.53 6.31±0.69 0.13 2.15 Comparative Example 29 9.11±2.59 8.25±2.42 -0.86 -9.42 Comparative Example 30 8.06±1.88 6.39±1.58 -1.67 -20.73 Example 42 12.04±1.76 21.34±2.33 9.3 77.24 Example 43 11.02±1.63 14.97±2.99 3.95 35.83 Comparative Example 31 9.24±2.25 8.66±1.6 -0.58 -6.24 Comparative Example 32 20.41±4.59 18.76±3.98 -1.65 -8.07 Example 44 18.28±1.4 25.26±1.48 6.98 38.17 Example 45 26.04±3.7 29.1±3.51 3.05 11.73 Example 46 11.54±2.07 14.75±3.29 3.22 27.89 Comparative Example 33 19.28±2.53 19.67±3.11 0.4 2.05

[0134] As shown in Examples 41 to 46, when the polar oil content was equal to or less than the IMC content, the in-vitro SPF value increased due to UV exposure. On the other hand, as shown in Comparative Examples 24 to 33, when the polar oil content was greater than the IMC content, the in-vitro SPF value decreased or the rate of change significantly decreased due to UV exposure. Therefore, it was confirmed that the polar oil content should be equal to or less than the UV cutter content, particularly the IMC content, in order for the UV cutter cosmetic composition of the present invention to achieve excellent UV cutoff effects.

[0135] Experimental Example 10: UV Cutting Effect by Non-polar Oil Content

[0136] UV-blocking cosmetics were prepared using the ingredients shown in Table 21 below. Item A and Item B were prepared separately and heated to 75°C. Item B was slowly added to Item A, emulsified for 5 minutes using a homogenizer, and then cooled to 30°C. The SPF values of each of the prepared samples were measured before and after UV irradiation using the same method as in Experimental Example 1. The results are shown in Table 22 below.

[0137] Table 21

[0138]

[0139] *OMC:Ethylhexyl methoxycinnamate / IMC:Isoamyl p-methoxycinnamate / CEH:Cetyl ethylhexanoate / BEMT:Bis-ethylhexyloxyphenol methoxyphenyl triazine

[0140] Table 22

[0141] SPF (before UV exposure) SPF (after UV exposure) SPF change SPF change rate (%) Example 47 21.39±1.53 24.05±2.65 2.66 12.44 Example 48 18.1±2.96 27.71±4.85 9.61 53.09 Example 49 20.31±2.34 28.94±3.33 8.63 42.49 Example 50 18.12±2.64 29.24±4.71 11.12 61.37

[0142] As in Examples 47 to 50, it was confirmed that the ultraviolet cutting efficiency was increased by ultraviolet rays even when the content of the non-polar oil reached 20%.

[0143] Experimental Example 11: UV Cutting Effects Based on OMC and IMC Contents

[0144] UV-blocking cosmetics were prepared using the ingredients shown in Table 23 below. Items A and B were prepared separately and heated to 75°C. Item B was slowly added to Item A, emulsified for 5 minutes using a homogenizer, and then cooled to 30°C. The SPF values of each of the prepared samples were measured before and after UV irradiation using the same method as in Experimental Example 1. The results are shown in Table 24 below.

[0145] Table 23

[0146]

[0147] *OMC:Ethylhexyl methoxycinnamate / IMC:Isoamyl p-methoxycinnamate / CEH:Cetyl ethylhexanoate / BEMT:Bis-ethylhexyloxyphenol methoxyphenyl triazine

[0148] Table 24

[0149] SPF (before UV exposure) SPF (after UV exposure) SPF change SPF change rate (%) Example 51 18.1±2.96 27.71±4.85 9.61 53.09 Example 52 7.6±1.26 1.26±9.75 2.15 28.29 Example 53 7.11±0.9 0.9±8.28 1.17 16.46 Comparative Example 34 4.84±0.37 0.37±4.55 (0.29) -5.99 Comparative Example 35 12.07±2 11.07±2.01 -1.00 -8.29

[0150] As in Examples 51 to 53, when the polar oil content was lower than the IMC content, the effects of the present invention were maintained. However, as in Comparative Examples 34 and 35, when the polar oil content was higher than the IMC content, the effects of the present invention were confirmed to disappear.

[0151] Experimental Example 12: UV Cutting Effect of Emulsifier

[0152] UV-blocking cosmetics were prepared with reference to Tables 25 and 26 below. Item A and Item B were prepared separately and heated to 75°C. Item B was slowly added to Item A, emulsified for 5 minutes using a homogenizer, and then cooled to 30°C. The SPF values of each prepared sample before and after UV irradiation were measured using the same method as in Experimental Example 1. The results are shown in Table 27 below.

[0153] Table 25

[0154]

[0155] Table 26

[0156] emulsifiers content Example 54 Lipomulse 165 3 Example 55 Olivem 800 3 Example 56 Olivem 1000 3 Example 57 Montanov L 3 Example 58 Montanov 68 3 Example 59 Lipoid S 75-3 3 Example 60 Tegocare 450 3 Example 61 Span 60 3 Example 62 Tween 20 3 Example 63 Amphisol K 3

[0157] Table 27

[0158] SPF (before UV exposure) SPF (after UV exposure) SPF change SPF change rate (%) Example 54 45.56±12.36 50.12±11.04 4.56 10.01 Example 55 40.72±8.03 44.4±7.84 3.68 9.04 Example 56 49.73±9.95 55.05±9.65 5.32 10.70 Example 57 46.24±9.79 49.22±9.09 2.98 6.44 Example 58 48.17±9.6 52.67±9.57 4.50 9.34 Example 59 51.21±8.67 58.04±10.14 6.83 13.34 Example 60 35.16±7.48 46.72±8.48 11.56 32.88 Example 61 40.93±7.62 48.73±7.86 7.80 19.06 Example 62 34.13±7.53 34.95±8.39 0.82 2.40 Example 63 24.78±4.88 26.47±4.99 1.69 6.82

[0159] It was confirmed that the effects of the present invention were maintained even when an emulsifier suitable for an oil-in-water type was included.

[0160] Experimental Example 13: UV Cutting Effect of Polymer

[0161] UV-blocking cosmetics were prepared with reference to Tables 28 and 29 below. Items A and B were prepared separately and heated to 75°C. Item B was slowly added to Item A, emulsified for 5 minutes using a homogenizer, and then cooled to 30°C. The SPF values of each of the prepared samples were measured before and after UV irradiation using the same method as in Experimental Example 1. The results are shown in Table 30 below.

[0162] Table 28

[0163]

[0164] Table 29

[0165] polymer content Example 64 comedia SP 0.3 Example 65 Aristoflex AVC 0.3 Example 66 volarest 0.3 Example 67 sepimax gen 0.3 Example 68 Keltrol F 0.3 Example 69 pemulene TR2 0.15 Example 70 C 980 0.15 Example 71 Utrez-21 0.15

[0166] Table 30

[0167] SPF (before UV exposure) SPF (after UV exposure) SPF change SPF change rate (%) Example 64 44.81±8.19 48.47±10.33 3.66 8.17 Example 65 43.9±6.07 47.49±5.34 3.59 8.18 Example 66 39.13±6.39 42.76±7.63 3.63 9.28 Example 67 33.09±1.75 36.86±2.27 3.77 11.39 Example 68 31.5±3.64 33.9±5.3 2.68 9.30 Example 69 28.81±2.21 31.49±2.77 2.40 7.62 Example 70 44.13±6.45 48.53±9.22 4.40 9.97 Example 71 41.85±4.91 44.71±5.68 2.86 6.83

[0168] It was confirmed that the effects of the present invention were maintained even when a thickener for oil-in-water type was used.

[0169] Experimental Example 14: UV Cutting Effect by Type of Emulsifier in Oil-in-Water Emulsions

[0170] The various emulsifiers disclosed in Table 32 were mixed separately in the prescription of Table 31 below to prepare UV-cutting cosmetics as follows. The raw materials of item A were fully mixed at 75 degrees and prepared. Raw materials 7 and 8 were added to raw material 6 and dispersed for 30 minutes using a dispersant, and then the remaining raw materials of item B were added and heated to 75 degrees and prepared. While slowly adding item A to item B, emulsify for 10 minutes using a homogenizer and cool to 30 degrees. The SPF value of each prepared sample before and after UV irradiation was measured by the same method as in Experimental Example 1, and the results are shown in Table 33 below.

[0171] Table 31

[0172]

[0173] *OMC:Ethylhexyl methoxycinnamate / IMC:Isoamyl p-methoxycinnamate / BEMT:Bis-ethylhexyloxyphenol methoxyphenyl triazine

[0174] Table 32

[0175] emulsifiers Example 72 Sodium polyacrylate Example 73 Cetearyl olivate,Sorbitan olivate Example 74 C14-22alcohols,C12-20 alkyl glucoside Example 75 Hydrogenated lecithin Example 76 Ceteareth-6olivate Example 77 Polyglyceryl-3methylglucose distearate Example 78 Polysorbate 20 Comparative Example 36 Polysorbate 60 Example 79 Potassium cetyl phosphate

[0176] Table 33

[0177] SPF (before UV exposure) SPF (after UV exposure) SPF change SPF change rate (%) Example 72 37.57±4.89 44.19±5.41 6.62 17.62 Example 73 52.29±4.53 59.85±5.18 7.56 14.46 Example 74 52.47±3.36 57.86±7.61 5.39 10.27 Example 75 42.5±4.12 56.84±4.74 14.34 33.74 Example 76 52.73±3.79 53.65±3.73 0.92 1.74 Example 77 43.27±4.92 44.01±4.75 0.74 1.71 Example 78 51.09±5.41 53.64±7.44 2.55 4.99 Comparative Example 36 44.36±7.54 39.45±8.43 -4.91 -11.07 Example 79 51.96±4.37 53±4.57 1.04 2.00

[0178] The emulsifiers used in Examples 72 to 79 significantly increased the ultraviolet cutting effect, whereas the emulsifier used in Comparative Example 36 showed no increase in the ultraviolet cutting effect.

Claims

1. A cosmetic composition for UV-cutting, comprising a UV-cutting agent having a methoxycinnamate structure and a polar oil in an amount of 5% by weight or less relative to the total weight of the composition. in, The ultraviolet cutter having a methoxycinnamate structure contains isoamyl p-methoxycinnamate, and the content of the polar oil is equal to or less than the content of isoamyl p-methoxycinnamate. The composition comprises an ultraviolet cutter having a methoxycinnamate structure and a polar oil in a weight ratio of 1:0.01 to 0.4, wherein the weight ratio of 1:0.01 to 0.4 is the weight ratio of the ultraviolet cutter having a methoxycinnamate structure to the polar oil. wherein the polar oil comprises at least one selected from the group consisting of hexadecyl ethylhexanoate, caprylic / capric glyceride, phenylethyl benzoate, dicaprylyl carbonate, C12-15 alkyl benzoate, and octocrylene; and Wherein, the ultraviolet cutter having a methoxycinnamate structure accounts for 2 to 30 weight % relative to the total weight of the composition. 2 . The ultraviolet cutting cosmetic composition according to claim 1 , further comprising a hydrocarbon oil.

3. The ultraviolet light cutting cosmetic composition according to claim 2, wherein The hydrocarbon oil is present in an amount ranging from 5 to 30% by weight relative to the total weight of the composition.

4. The ultraviolet light cutting cosmetic composition according to claim 2, wherein The composition includes an ultraviolet cutter having a methoxycinnamate structure and hydrocarbon oil at a weight ratio of 1:0.2 to 15. The weight ratio of 1:0.2 to 15 is a weight ratio of the ultraviolet cutter having a methoxycinnamate structure to the hydrocarbon oil.

5. The ultraviolet light cutting cosmetic composition according to claim 2, wherein The composition comprises polar oil and hydrocarbon oil in a weight ratio of 1:1 to 300, the weight ratio of 1:1 to 300 being a weight ratio of polar oil:hydrocarbon oil.

6. The ultraviolet light cutting cosmetic composition according to claim 1 or 2, wherein The ultraviolet cutter having a methoxycinnamate structure further includes at least one selected from the group consisting of ethylhexyl methoxycinnamate and cinoxate.

7. The ultraviolet light cutting cosmetic composition according to claim 2, wherein The hydrocarbon oil includes at least one selected from the group consisting of vaseline, normal paraffin, mineral oil, isoparaffin, polyisobutene, hydrogenated polyisobutene, polybutene, ozokerite, ceresin, microcrystalline wax, paraffin, polyethylene wax, polyethylene / polypropylene wax, squalane, squalene, pristane, and polyisoprene.

8. The ultraviolet light cutting cosmetic composition according to claim 2, wherein The hydrocarbon oil includes at least one selected from the group consisting of liquid paraffin, isododecane, and isohexadecane.

9. The ultraviolet light cutting cosmetic composition according to claim 1 or 2, wherein The composition contains 15 wt % or less of silicone oil relative to the total weight.

10. The ultraviolet light cutting cosmetic composition according to claim 1 or 2, wherein The SPF value of the composition is increased after the ultraviolet ray irradiation compared to before the ultraviolet ray irradiation.

11. The ultraviolet light cutting cosmetic composition according to claim 1 or 2, wherein After irradiation with ultraviolet rays, the composition has increased UV-A and UV-B blocking effects.

12. A cosmetic composition for UV-cutting, comprising, relative to the total weight of the composition, 2 to 30% by weight of a UV-cutting agent having a methoxycinnamate structure, 5% by weight or less of a polar oil, and 5 to 30% by weight of a hydrocarbon oil. in, The ultraviolet cutter having a methoxycinnamate structure contains isoamyl p-methoxycinnamate, and the content of the polar oil is equal to or less than the content of isoamyl p-methoxycinnamate. The composition comprises an ultraviolet cutter having a methoxycinnamate structure and a polar oil in a weight ratio of 1:0.01 to 0.4, wherein the weight ratio of 1:0.01 to 0.4 is the weight ratio of the ultraviolet cutter having a methoxycinnamate structure to the polar oil, and The polar oil comprises at least one selected from the group consisting of hexadecyl ethylhexanoate, caprylic / capric glyceride, phenylethyl benzoate, dicaprylyl carbonate, C12-15 alkyl benzoate and octocrylene.

13. A method for preparing a UV-cutting cosmetic composition, comprising the following steps: A UV cutter having a methoxycinnamate structure and a polar oil in an amount of 5% by weight or less relative to the total weight of the composition are mixed. wherein the ultraviolet cutter having a methoxycinnamate structure comprises isoamyl p-methoxycinnamate, and the content of the polar oil is equal to or less than the content of isoamyl p-methoxycinnamate, The composition comprises an ultraviolet cutter having a methoxycinnamate structure and a polar oil in a weight ratio of 1:0.01 to 0.4, wherein the weight ratio of 1:0.01 to 0.4 is the weight ratio of the ultraviolet cutter having a methoxycinnamate structure to the polar oil. wherein the polar oil comprises at least one selected from the group consisting of hexadecyl ethylhexanoate, caprylic / capric glyceride, phenylethyl benzoate, dicaprylyl carbonate, C12-15 alkyl benzoate, and octocrylene; and Wherein, the ultraviolet cutter having a methoxycinnamate structure accounts for 2 to 30 weight % relative to the total weight of the composition.

14. A cosmetic composition for UV cutting, comprising a UV cutting agent having a methoxycinnamate structure and a polar oil, wherein: The ultraviolet cutter comprises isoamyl p-methoxycinnamate, wherein the content of the polar oil is equal to or less than the content of isoamyl p-methoxycinnamate, The composition comprises an ultraviolet cutter having a methoxycinnamate structure and a polar oil in a weight ratio of 1:0.01 to 0.4, wherein the weight ratio of 1:0.01 to 0.4 is the weight ratio of the ultraviolet cutter having a methoxycinnamate structure to the polar oil. wherein the polar oil comprises at least one selected from the group consisting of hexadecyl ethylhexanoate, caprylic / capric glyceride, phenylethyl benzoate, dicaprylyl carbonate, C12-15 alkyl benzoate, and octocrylene; and Wherein, the ultraviolet cutter having a methoxycinnamate structure accounts for 2 to 30 weight % relative to the total weight of the composition.

15. The ultraviolet light cutting cosmetic composition according to claim 14, wherein The composition is of the oil-in-water type.

16. The ultraviolet light cutting cosmetic composition according to claim 14, wherein The ultraviolet cutter having a methoxycinnamate structure further comprises ethylhexyl methoxycinnamate, cinoxate or a mixture thereof.

17. The ultraviolet light cutting cosmetic composition according to claim 14, wherein The composition comprises isoamyl p-methoxycinnamate and polar oil in a weight ratio of 1:0.01 to 0.7, and the weight ratio of 1:0.01 to 0.7 is a weight ratio of isoamyl p-methoxycinnamate to polar oil.

18. The ultraviolet light cutting cosmetic composition according to claim 14, wherein The composition also includes a non-polar oil.

19. The ultraviolet light cutting cosmetic composition according to claim 14, wherein The SPF value of the composition is increased after the ultraviolet ray irradiation compared to before the ultraviolet ray irradiation.

20. The ultraviolet light cutting cosmetic composition according to claim 14, wherein After irradiation with ultraviolet rays, the composition has increased UV-A and UV-B blocking effects.

21. An oil-in-water type UV-cutting cosmetic composition comprising a UV-cutting agent having a methoxycinnamate structure and a polar oil. in, The ultraviolet cutter comprises isoamyl p-methoxycinnamate, The UV cutter is present in an amount of 2 to 30% by weight relative to the total weight of the composition. The content of the polar oil is equal to or less than the content of the isoamyl p-methoxycinnamate, The composition comprises an ultraviolet cutter having a methoxycinnamate structure and a polar oil in a weight ratio of 1:0.01 to 0.4, wherein the weight ratio of 1:0.01 to 0.4 is the weight ratio of the ultraviolet cutter having a methoxycinnamate structure to the polar oil, and The polar oil comprises at least one selected from the group consisting of hexadecyl ethylhexanoate, caprylic / capric glyceride, phenylethyl benzoate, dicaprylyl carbonate, C12-15 alkyl benzoate and octocrylene.

22. A method for preparing a UV-cutting cosmetic composition, comprising the steps of mixing a UV-cutting agent having a methoxycinnamate structure and a polar oil. in, The ultraviolet cutter comprises isoamyl p-methoxycinnamate, The content of the polar oil is equal to or less than the content of the isoamyl p-methoxycinnamate, The composition comprises an ultraviolet cutter having a methoxycinnamate structure and a polar oil in a weight ratio of 1:0.01 to 0.4, wherein the weight ratio of 1:0.01 to 0.4 is the weight ratio of the ultraviolet cutter having a methoxycinnamate structure to the polar oil. wherein the polar oil comprises at least one selected from the group consisting of hexadecyl ethylhexanoate, caprylic / capric glyceride, phenylethyl benzoate, dicaprylyl carbonate, C12-15 alkyl benzoate, and octocrylene; and Wherein, the ultraviolet cutter having a methoxycinnamate structure accounts for 2 to 30 weight % relative to the total weight of the composition.

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