Composition comprising aloe extract and aloe leaf powder for alleviating skin photoaging and thermal aging

Abstract

The present invention relates to a skin improvement composition comprising an aloe extract and aloe leaf powder. The skin improvement composition according to the present invention can be effectively used for alleviating photoaging caused by ultraviolet exposure and thermal aging caused by infrared rays, and for soothing and moisturizing the skin.

Description

Composition for improving skin photoaging and thermal aging comprising aloe extract and aloe leaf powder

[0001] The present invention relates to a skin improvement composition comprising an aloe extract and aloe leaf powder. The skin improvement composition according to the present invention can be useful for improving photoaging caused by ultraviolet stimulation and thermal aging caused by infrared rays, and for soothing and moisturizing the skin.

[0002] In modern society, exposure to ultraviolet (UV) rays is recognized as a major threat to skin health. UV rays are a major factor in causing skin photoaging, which can lead to problems such as loss of elasticity, wrinkles, and pigmentation. In particular, prolonged exposure to UV rays can increase the risk of skin cancer by damaging the DNA of skin cells.

[0003] Photoaging caused by UV rays causes the degeneration of collagen and elastin, the major structural proteins found in the dermal layer of the skin. This is a major factor in reducing skin elasticity and structural stability. This causes the skin to gradually wrinkle, sag, and take on an overall aged appearance.

[0004] To prevent this, various cosmetics containing sunscreens and antioxidants have been developed. However, their effectiveness remains limited and they are insufficient to completely prevent skin damage caused by long-term UV and infrared exposure. Therefore, there is a growing need for more effective cosmetic compositions that can prevent and improve skin photoaging caused by UV rays. Furthermore, demand for food compositions, both applied to the skin and as inner beauty products, is also increasing.

[0005] Against this backdrop, there is a continuous demand for the development of compositions that can minimize skin damage caused by UV exposure and maintain skin health and beauty.

[0006] The purpose of the present invention is to provide a cosmetic composition for improving skin photoaging caused by ultraviolet rays and thermal aging caused by infrared rays, comprising aloe extract, aloe leaf powder, caffeine, panthenol, boswellia extract, and allantoin.

[0007] Another object of the present invention is to provide a food composition for improving skin photoaging caused by ultraviolet rays and thermal aging caused by infrared rays, comprising aloe extract, aloe leaf powder, caffeine, panthenol, boswellia extract, and allantoin.

[0008] Another object of the present invention is to provide a method for improving and / or treating skin photoaging caused by ultraviolet rays and thermal aging caused by infrared rays by administering to a subject a composition comprising aloe extract, aloe leaf powder, caffeine, panthenol, boswellia extract, and allantoin.

[0009] One aspect of the present invention for achieving the above-mentioned purpose relates to a cosmetic composition for improving skin photoaging caused by ultraviolet rays and thermal aging caused by infrared rays, comprising aloe extract, aloe leaf powder, caffeine, panthenol, boswellia extract, and allantoin.

[0010] In the present invention, 'aloe extract' refers to an extract from the leaves of the Aloe vera plant, which is a perennial herb belonging to the Angiosperm phylum, Monocot class, and Liliaceae family. Aloe extract is known to contain vitamins (A, C, E, B12), minerals (calcium, magnesium, zinc), amino acids, polysaccharides (acemannan, glucomannan), anthraquinone, enzymes, etc., and these ingredients can be helpful for skin health.

[0011] Specifically, the aloe extract may be included in an amount of 5 to 30 parts by weight, more specifically in an amount of 10 to 25 parts by weight, and most specifically in an amount of 10 to 20 parts by weight, but is not limited thereto.

[0012] In the present invention, 'aloe leaf powder' is a powder made by drying aloe leaves, and contains more fiber and solid components in addition to vitamins (A, C, E, B12), minerals (calcium, magnesium, zinc), amino acids, polysaccharides (acemannan, glucomannan), anthraquinone, and enzymes, and is more densely packed with nutrients in a dried form, so it is very effective compared to its components.

[0013] Specifically, the aloe leaf powder may be included in an amount of 5 to 70 parts by weight, more specifically in an amount of 5 to 65 parts by weight, and most specifically in an amount of 10 to 60 parts by weight, but is not limited thereto.

[0014] Also, specifically, in the present invention, the aloe extract and the aloe leaf powder may be included in a weight ratio of 3:0.5 to 3:20, more specifically in a weight ratio of 3:1 to 3:15, and most specifically in a weight ratio of 3:2 to 3:12, but is not limited thereto. This may be changed as necessary in order to have an excellent effect and formulation advantage in improving skin photoaging caused by ultraviolet rays by appropriately combining the aloe extract and the aloe leaf powder to include the concentrated nutrients of aloe while containing high moisture.

[0015] In the present invention, 'caffeine' is a major secondary metabolite of plants of the genus Coffee in the family Rubiaceae, a substance of the purine alkaloid series, and is contained in the fruits, leaves, seeds, etc. of some plants such as coffee and tea. It acts on the central nervous system to not only stimulate the mind and reduce fatigue, but also promotes blood circulation to reduce edema and has beneficial effects on the skin.

[0016] Specifically, the caffeine may be included in an amount of 1 to 10 parts by weight, more specifically in an amount of 1 to 7 parts by weight, and most specifically in an amount of 1 to 5 parts by weight, but is not limited thereto.

[0017] In the present invention, "panthenol" is an alcohol derivative of pantothenic acid, a long-acting pantothenic acid agent that oxidizes in the body to form pantothenic acid, exerting its effects. Panthenol is known to be rapidly absorbed when applied to the skin, protecting it and reducing inflammation, helping to strengthen it.

[0018] Specifically, the panthenol may be included in an amount of 1 to 15 parts by weight, more specifically in an amount of 1 to 10 parts by weight, and most specifically in an amount of 1 to 7 parts by weight, but is not limited thereto.

[0019] In the present invention, "Boswellia extract" is a component derived from the resin of the Boswellia tree and has powerful anti-inflammatory properties. This component helps reduce skin inflammation, soothe the skin, and alleviate redness. It is also useful for repairing skin damage and maintaining a healthy skin condition.

[0020] Specifically, the Boswellia extract may be included in an amount of 1 to 20 parts by weight, more specifically in an amount of 1 to 15 parts by weight, and most specifically in an amount of 5 to 15 parts by weight, but is not limited thereto.

[0021] In the present invention, 'allantoin' is a natural substance extracted mainly from perennial herbs such as comfrey, pine, and wheat sprouts, and can be obtained by refining uric acid oxide produced through catabolism, a process of decomposing high molecular weight organic matter into low molecular weight substances, and is known to be effective in protecting the skin and having superior stability compared to chemical components.

[0022] Specifically, the allantoin may be included in an amount of 1 to 15 parts by weight, more specifically in an amount of 1 to 10 parts by weight, and most specifically in an amount of 1 to 7 parts by weight, but is not limited thereto.

[0023] Additionally, specifically, the cosmetic composition for improving skin photoaging may additionally include a camellia extract.

[0024] In the present invention, "camellia extract" refers to an ingredient extracted from the flowers, leaves, or seeds of the camellia tree (Camellia japonica), widely used in skin and hair care. Camellia japonica is a plant native to East Asia and is rich in ingredients such as catechins and polyphenols. As a natural ingredient, it can be safely used on the skin.

[0025] Specifically, the camellia extract may be included in an amount of 1 to 20 parts by weight, more specifically in an amount of 1 to 15 parts by weight, and most specifically in an amount of 5 to 15 parts by weight, but is not limited thereto.

[0026] In the present invention, the 'extract' may include any substance, regardless of the extraction method or type of ingredient, that is, a substance obtained by separating a component contained in a raw material from a natural product by contacting the solvent and the raw material under specific conditions with the active ingredient contained in the raw material. The extract of the present invention may be extracted from a natural, hybrid, or mutant plant of each of the corresponding plants, and may also be extracted from a plant tissue culture.

[0027] The method for extracting the extract of the present invention is not particularly limited, and extraction can be performed according to methods commonly used in the art. Non-limiting examples of the extraction methods include hot water extraction, ultrasonic extraction, filtration, and reflux extraction, and these may be performed alone or in combination of two or more methods.

[0028] The type of extraction solvent used in the present invention is not particularly limited, and any solvent known in the art can be used. Non-limiting examples of the extraction solvent include at least one selected from the group consisting of water, anhydrous or lower alcohols having C1 to C4 chains, a mixed solvent of water and lower alcohols, acetone, butylene glycol, ethyl acetate, propylene glycol, and chloroform, and two or more types may be used singly or in combination.

[0029] Skin aging can be divided into natural intrinsic aging and extrinsic aging (photoaging and thermal aging) caused by factors such as ultraviolet rays and infrared rays. Natural aging is a physiological phenomenon in which skin cell function declines with age, dermal fibroblast activity decreases, and collagen synthesis decreases and collagen breakdown accelerates. In contrast, extrinsic aging, represented by photoaging and thermal aging, is distinct from natural aging in its mechanisms and characteristics.

[0030] In the present invention, skin photoaging caused by ultraviolet rays refers to skin aging caused by exposure to the sun's ultraviolet (UV) rays. Ultraviolet rays are divided into UVA (long-wavelength ultraviolet) and UVB (medium-wavelength ultraviolet) rays. UVA penetrates deep into the dermis layer of the skin, damaging fibers that maintain skin elasticity, such as collagen and elastin, causing the skin to lose elasticity, develop wrinkles, and experience skin pigmentation.

[0031] UVA rays are a major cause of skin aging, and prolonged exposure can worsen sagging and wrinkles. Furthermore, UVB rays affect the epidermis, primarily causing sunburn and erythema. They also stimulate melanin production, which can lead to pigmentation disorders such as freckles and melasma. Repeated UVB exposure can damage the skin's DNA, increasing the risk of skin cancer.

[0032] Continuous UV exposure temporarily stimulates dermal collagen synthesis, while also rapidly increasing the activity of collagen-degrading enzymes (e.g., collagenase), leading to irregular rearrangement and rapid degradation of collagen within the dermis. This results in wrinkles that are far deeper and coarser than those seen with natural aging, and histological changes such as a rough, thickened skin surface. Photoaging, in particular, can be accompanied by abnormal skin damage because it is accelerated by external stimuli such as UV rays, accelerating collagen damage and cell destruction more than natural aging over time.

[0033] In the present invention, "thermal aging" refers to accelerated aging as the skin is exposed to heat and its temperature rises. The average human skin temperature is maintained at 31-32℃, but if the skin temperature rises above that, a skin inflammation reaction occurs and heat aging begins. Such heat aging can occur when the skin temperature rises due to exposure to ultraviolet and / or infrared rays, or exposure to heat generated by the use of various electronic devices. Repeated exposure to infrared rays increases the synthesis of MMP (metallo-matrix protease) present in the dermis, accelerating wrinkles and skin aging.

[0034] When skin temperature rises above a certain level, reaching a state of "skin warming," collagen synthesis within the dermis decreases and the activity of proteolytic enzymes increases. This damages elastic fibers such as collagen and elastin that support the skin. This results in a loss of skin balance, rapid loss of elasticity, and accelerated wrinkle formation. Furthermore, repeated exposure to heat can induce elastic fiber proliferation and degeneration (solar elastosis), leading to dilated capillaries and a red, uneven complexion.

[0035] Thermal aging also exhibits similar extrinsic aging patterns to photoaging in that it accelerates damage to collagen and elastic tissue, causing changes in appearance such as decreased skin elasticity and deepening wrinkles. Photoaging and thermal aging, as described above, cause damage to skin tissues due to ultraviolet and infrared rays, leaving much more rapid and significant damage to the skin than normal aging. Key symptoms of photoaging and / or thermal aging include wrinkles, decreased skin elasticity, pigmentation (spots, freckles), and roughening of the skin surface.

[0036] In one embodiment of the present invention, a cosmetic composition for improving skin photoaging caused by UV rays, comprising aloe extract, aloe leaf powder, caffeine, panthenol, boswellia extract, and allantoin, was evaluated for its effect in protecting skin cells from UV stimulation. As a result, it was confirmed that the composition and its composition ratio had an excellent effect in protecting skin cells. From this, it can be seen that the composition of the present invention can exhibit a more comprehensive anti-aging effect by targeting and improving both photoaging caused by UV rays and thermal aging caused by infrared rays.

[0037] In particular, it can suppress damage to the skin's dermal structure (collagen reduction, elastic fiber destruction, etc.) in response to external environmental factors such as sunlight and repair damage that has already occurred, thereby slowing down the progression of skin aging and improving the overall skin condition.

[0038] In addition, the cosmetic composition for improving skin photoaging may further include a skin soothing or moisturizing agent.

[0039] In the present invention, "skin moisturizing" encompasses both replenishing moisture and protecting the skin from moisture loss. Skin typically contains approximately 70% moisture in the dermis, but this decreases as it moves toward the epidermis, reaching approximately 10 to 30% in the stratum corneum. When the moisture content of these cell layers falls below 10%, the skin becomes rough, its protective functions weaken, and signs of aging appear. Therefore, moisturizing and hydrating are crucial for skin protection.

[0040] In the present invention, "skin soothing" refers to stabilizing the skin's condition by alleviating or preventing skin reactions such as heat, inflammation, redness, and itchiness caused by external stimuli. Generally, skin is easily damaged by external factors such as UV rays, pollutants, and chemical irritants. This weakening of the skin barrier can easily lead to inflammatory reactions. If this damage persists, the skin can become sensitive, red, or irritated, and in severe cases, it can develop into inflammatory diseases. Therefore, skin soothing plays a crucial role in maintaining skin health and protecting it from external irritants.

[0041] In one embodiment of the present invention, a cosmetic composition comprising aloe extract, aloe leaf powder, caffeine, panthenol, boswellia extract, and allantoin was evaluated for skin heat soothing effect and skin moisturizing effect, and it was confirmed that the composition was excellent in skin soothing and moisturizing effect.

[0042] The cosmetic composition of the present invention can be prepared in a formulation selected from the group consisting of a solution, an external ointment, a cream, a soothing gel, a foam, a nourishing toner, an emollient toner, a pack, an emollient, a body wash, an emulsion, a makeup base, an essence, a soap, a liquid cleanser, a bath agent, a sunscreen cream, a sun oil, a suspension, an emulsion, a paste, a gel, a lotion, a powder, a soap, a foam cleanser, an oil, a powder foundation, an emulsion foundation, a wax foundation, a patch, and a spray, but is not limited thereto.

[0043] The cosmetic composition of the present invention may additionally include one or more cosmetically acceptable carriers that are incorporated into general skin cosmetics, and may appropriately incorporate conventional ingredients such as oil, water, surfactants, moisturizers, lower alcohols, thickeners, chelating agents, pigments, preservatives, fragrances, etc., but is not limited thereto.

[0044] The cosmetically acceptable carrier included in the cosmetic composition of the present invention varies depending on the formulation of the cosmetic composition.

[0045] When the formulation of the present invention is an ointment, paste, cream, or gel, animal oil, vegetable oil, wax, paraffin, starch, tragacanth, cellulose derivatives, polyethylene glycol, silicone, bentonite, silica, talc, zinc oxide, etc. may be used as carrier components, but are not limited thereto. These may be used alone or in combination of two or more.

[0046] When the formulation of the present invention is a powder or spray, lactose, talc, silica, aluminum hydroxide, calcium silicate, polyamide powder, etc. can be used as carrier components, and especially in the case of a spray, a propellant such as chlorofluorohydrocarbon, propane / butane, or dimethyl ether can be additionally included, but is not limited thereto. These can be used alone or in combination of two or more.

[0047] When the formulation of the present invention is a solution or emulsion, a solvent, a solubilizer or an emulsifier may be used as a carrier component, for example, water, ethanol, isopropanol, ethyl carbonate, ethyl acetate, benzyl alcohol, benzyl benzoate, propylene glycol, 1,3-butyl glycol oil, etc. may be used, and in particular, cottonseed oil, peanut oil, corn germ oil, olive oil, castor oil and sesame oil, glycerol fatty acid ester, polyethylene glycol or fatty acid ester of sorbitan may be used, but is not limited thereto. These may be used alone or in a mixture of two or more.

[0048] When the formulation of the present invention is a suspension, liquid diluents such as water, ethanol or propylene glycol, suspending agents such as ethoxylated isostearyl alcohol, polyoxyethylene sorbitol ester and polyoxyethylene sorbitan ester, microcrystalline cellulose, aluminum metahydroxide, bentonite, agar or tragacanth may be used as carrier components, but are not limited thereto. These may be used alone or in combination of two or more.

[0049] The composition of the present invention can be used by a transdermal administration method such as direct application to the skin or spraying, and the administration route of the composition of the present invention can be administered through any general route as long as it can reach the target tissue.

[0050] The amount of the composition of the present invention can be appropriately adjusted according to individual differences such as age, degree of lesion, etc., and formulation, and can be used for one week to several months by applying an appropriate amount to the skin once or several times a day.

[0051] Another aspect of the present invention relates to a food composition for improving skin photoaging caused by ultraviolet rays and thermal aging caused by infrared rays, comprising aloe extract, aloe leaf powder, caffeine, panthenol, boswellia extract, and allantoin.

[0052] Additionally, the food composition may additionally include a camellia extract.

[0053] Additionally, the food composition may additionally include a skin soothing or moisturizing agent.

[0054] Foods to which the food composition of the present invention can be added include dairy products including meat, bread, sausage, chocolate, snacks, candy, confectionery, ramen, pizza, other noodles, gum, ice cream, various soups, beverages, tea, vitamin complexes, and health functional supplements.

[0055] Specifically, the food composition may be a health functional food. The health functional food emphasizes the bioregulatory function of the food, and is a food that has been given added value by utilizing physical, biochemical, and biotechnological methods to function and manifest for a specific purpose. The ingredients of such health functional foods are designed and processed to sufficiently exert the body's regulatory functions related to biological defense, regulation of body rhythms, and prevention and recovery from disease. The food composition may contain food additives, sweeteners, or functional ingredients that are acceptable as food.

[0056] The above functional food can be manufactured and processed into any one formulation selected from the group consisting of tablets, granules, powder, capsules, liquid solutions, and pills for the purpose of skin improvement and anti-inflammation.

[0057] When the composition of the present invention is used as a health functional food (or health functional beverage additive), it may be added as is or combined with other foods or food ingredients, and used appropriately according to conventional methods. The mixing amount of the above ingredients may be appropriately determined depending on the intended use (prevention, health or improvement, therapeutic treatment).

[0058] Additionally, specifically, the food composition may be for inner beauty. The term "inner beauty" refers to "edible cosmetics" that have the purpose of being a cosmetic but also solve skin problems by improving eating habits in the form of food, and is not limited to anything that can contain, be added to, or be mixed with the composition of the present invention.

[0059] Another aspect of the present invention relates to a cosmetic skin improvement method, comprising the step of applying to the skin a cosmetic composition for improving skin photoaging caused by ultraviolet rays and thermal aging caused by infrared rays, the cosmetic composition comprising an aloe extract, aloe leaf powder, caffeine, panthenol, boswellia extract, and allantoin. The cosmetic composition may be administered directly to the skin or sprayed, or may be ingested in the form of a food for inner beauty purposes. In the cosmetic skin improvement method of the present invention, the administration route may be any common route as long as it can reach the target tissue.

[0060] The composition may further comprise camellia extract. Furthermore, the composition may further provide skin soothing or moisturizing effects.

[0061] Another aspect of the present invention relates to a method for improving skin photoaging caused by ultraviolet rays and thermal aging caused by infrared rays, comprising administering to a subject a composition comprising an aloe extract, aloe leaf powder, caffeine, panthenol, boswellia extract, and allantoin. The composition may further comprise a camellia extract. Furthermore, the composition may additionally provide skin soothing or moisturizing effects.

[0062] Another aspect of the present invention relates to a method for improving skin photoaging caused by ultraviolet rays and thermal aging caused by infrared rays, comprising administering to a subject a composition comprising an aloe extract, aloe leaf powder, caffeine, panthenol, boswellia extract, and allantoin. The composition may further comprise a camellia extract. Furthermore, the composition may further comprise skin soothing or moisturizing properties.

[0063] The composition for improving skin photoaging caused by ultraviolet rays and thermal aging caused by infrared rays, comprising an aloe extract and aloe leaf powder of the present invention, protects cells from ultraviolet and / or infrared stimulation and has an excellent effect in soothing and moisturizing the skin.

[0064] The effects of the present invention are not limited to the above effects, and should be understood to include all effects that can be inferred from the detailed description of the present invention or the composition of the invention described in the claims.

[0065] Hereinafter, the present invention will be described in detail by way of examples. However, the following examples are only illustrative of the present invention, and the present invention is not limited to the following examples.

[0066] Manufacturing Example 1. Manufacturing of a cosmetic composition

[0067] Cosmetic compositions were prepared by mixing the ingredients according to the weight parts shown in Table 1 in purified water. Aloe, Boswellia, and Camellia extracts were prepared by placing 100 g of dry weight of each of Aloe, Boswellia, and Camellia in a flask and immersing and extracting them using 1,000 g of extraction solvent (water) at a temperature of 70℃ for 12 hours. The extracts were filtered through a filter with a pore size of 0.2 ㎛ to prepare extracts of Aloe, Boswellia, and Camellia, respectively. Aloe leaf powder, caffeine, panthenol, and allantoin were purchased from a cosmetic raw material company.

[0068] Classification Aloe extract Aloe leaf powder Caffeine Panthenol Boswellia extract Allantoin Camellia extract Example 1 15 102.55 1050 Example 2 15 152.55 1050 Example 3 15 302.55 1050 Example 4 15 452.55 1050 Example 5 15 602.55 1050 Example 6 15 302.55 10510 Comparative Example 1 15 02.55 1050 Comparative Example 2 0 302.55 1050 Comparative Example 3 15 300.5 1050 Comparative Example 4 15 302.50 1050 Comparative Example 5 15 302.55 050 Comparative Example 6 15 302.55 1000

[0069] Experimental Example 1. Evaluation of the skin cell protection effect from UV stimulation.

[0070] To evaluate the cell protection effects of the cosmetic compositions manufactured in each example and comparative example, fibroblast survival rates in response to ultraviolet (UV) light stimulation were measured. Cell damage caused by UV light is a major cause of photoaging, and the MTT assay was used to measure the protective effects against this damage.

[0071] Human dermal fibroblasts (HDFn cell line: purchased from Cascade Biologics) were used for cell viability assay. Human fibroblasts were seeded at 1X10 in 96-well plates. 4After seeding to form cells / well, they were cultured for 24 hours at 37°C, 5% CO2 in DMEM medium containing 10% FBS.

[0072] After culturing, the cells were stimulated with ultraviolet rays (10 mJ / cm2 UVB, wavelength 280-320 nm, light source-cell distance 15 cm) to induce cell damage. After ultraviolet stimulation, the medium was replaced with serum-free DMEM, and each of the compositions of the examples and comparative examples prepared in the above manufacturing examples was administered and cultured for 24 hours. The group cultured without treatment with the composition was used as the control group.

[0073] After incubation, MTT solution (final concentration 0.5 mg / mL) was added to each well and incubated for an additional 4 hours at 37°C to allow intracellular MTT to be reduced to formazan. To dissolve the formazan crystals formed after incubation, DMSO was added, and the absorbance was measured at 570 nm using a microplate reader. The average absorbance value for each sample group was calculated, and cell viability was evaluated by comparing it with the absorbance value of the control group. The results are shown in Table 2 below.

[0074] Classification Experimental Results Control Group - Example 1+++ Example 2+++ Example 3+++ Example 4++++ Example 5+++ Example 6++++ Comparative Example 1+ Comparative Example 2+ Comparative Example 3++ Comparative Example 4++ Comparative Example 5++ Comparative Example 6++* Cell viability: ++++ = Viability of 30% or more compared to the control group, +++ = Viability of 20% or more but less than 30% compared to the control group, ++ = Viability of 10% or more but less than 20% compared to the control group, + = Viability of 1% or more but less than 5% compared to the control group, - = Viability of less than 1% compared to the control group

[0075] As shown in Table 2 above, it was confirmed that when the aloe extract and aloe leaf powder were mixed together, a significantly superior effect was exhibited compared to Comparative Examples 1 and 2 in which the aloe extract or aloe leaf powder was not mixed together. In addition, it was confirmed that when the aloe extract and aloe leaf powder were mixed, a superior effect was exhibited compared to the control group at all weight ratios of 3:2 to 3:12.

[0076] Experimental Example 2. Evaluation of the Skin Heat Soothing Effect by Infrared Thermal Stimulation

[0077] Sixty adult women in their 30s and 40s were selected and exposed to summer sunlight at 33°C for 30 minutes to generate heat in their skin. They were then divided into 12 groups of 5 each, and sheets impregnated with the compositions of Examples 1 to 6 and Comparative Examples 1 to 6 were attached to each group. The skin temperature was measured over time, and the average temperature was calculated and presented.

[0078] Time Temperature (℃) Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Immediately after sunlight stimulation 36.7 36.0 36.5 36.5 36.8 36.1 Immediately after attachment 34.1 34.7 34.7 33.2 33.8 32.4 After 10 minutes of attachment 33.8 33.5 33.2 32.8 32.8 32.2 After 20 minutes of attachment 33.9 33.2 33.5 33.3 33.1 32.7 After 30 minutes of attachment 34.2 33.8 34.2 33.8 34.0 33.5 After 60 minutes of attachment 34.7 34.3 34.2 34.0 34.0 33.7 Time Temperature (℃) Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5Comparative Example 6Immediately after sunlight stimulation36.136.236.336.836.436.4Immediately after attachment35.935.33534.934.834.7After 10 minutes of attachment35.134.634.734.134.734.4After 20 minutes of attachment35.535.834.834.734.534.9After 30 minutes of attachment35.836.035.335.035.335.2After 60 minutes of attachment36.036.135.735.335.535.2

[0079] As a result, as shown in Table 4 above, in the case of the compositions of Examples 1 to 6, the temperature reduction effect appeared faster and was greater than in Comparative Examples 1 to 6, confirming that the heat stimulation effect caused by sunlight could be quickly soothed. Furthermore, it was confirmed that the heat soothing effect of the lowered skin temperature lasted longer in Examples 1 to 6 than in Comparative Examples 1 to 6 even over time, confirming that the heat soothing effect was excellent.

[0080] In addition, it was confirmed that a superior effect was observed compared to the comparative example at all weight ratios of 3:2 to 3:12 when mixing aloe extract and aloe leaf powder.

[0081] Experimental Example 3. Evaluation of Skin Moisturizing Effect

[0082] Sixty adult women in their 30s and 40s with dry skin were selected and divided into 12 groups of 5 each. Sheets impregnated with the compositions of Examples 1 to 6 and Comparative Examples 1 to 6 were attached to each group, and then the skin moisture content was measured using a corneometer (CM820 courage Khazaka electronic GmbH, Germany) for 60 minutes. The corneometer measures the ionic level of moisture present in the epidermis of the skin using a sensor, converts this to a number, and calculates the amount of moisture, thereby measuring the moisturizing power. Specifically, the corneometer probe is placed on the skin area to be measured, and when the probe is pressed against the skin, the capacitance of the skin is converted to a number through the sensor and displayed on the screen, which is then checked for measurement. Dry skin was classified as having a corneometer moisture content of 30 to 49.

[0083] Using the above method, the skin moisture content was measured using a coniometer under constant temperature and humidity conditions (24°C, humidity 40%) before attaching the sheet in advance, and used as a baseline value. The changes were measured immediately after attachment and after 10, 20, 30, and 60 minutes.

[0084] Time Skin moisture content (%) Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Before attachment 33.8 32.5 33.1 33.5 34.7 34.8 Immediately after attachment 56.2 58.3 60.1 64.3 63.2 68.6 After 10 minutes of attachment 55.3 56.2 57.5 62.1 62.4 4 After 20 minutes of attachment 55.3 56.2 57.5 62.1 62.4 4 After 30 minutes of attachment 55.3 56.2 57.5 62.1 62.4 4 After 60 minutes of attachment 52.1 54.1 55.4 58.5 58.7 59.3 Time Skin moisture content (%) Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5Comparative Example 6Before attachment34.033.033.834.434.334.4Immediately after attachment45.341.453.147.248.545.2After attachment10 minutes52.353.254.559.15961.4After attachment20 minutes52.353.254.559.15961.4After attachment30 minutes43.145.951.345.346.744.5After attachment60 minutes42.441.248.244.143.344.2

[0085] As a result, as shown in Table 4 above, it was confirmed that the compositions of Examples 1 to 6 showed a faster skin moisture content increase effect than those of Comparative Examples 1 to 6, while the moisture retention effect was maintained at a high level. In addition, it was confirmed that when mixing aloe extract and aloe leaf powder, a superior effect was shown compared to the comparative examples at all weight ratios of 3:2 to 3:12.

[0086] Photoaging and thermal aging accelerate moisture loss by destroying the lipid-protein complexes of the skin's moisture barrier, rapidly transforming fine lines into deep wrinkles. The composition of the present invention reduces moisture loss and promotes the restoration of damaged lipid-protein complexes, thereby strengthening skin barrier function and preventing or alleviating the formation and / or deepening of wrinkles.

[0087] In light of the above experimental results, it was confirmed that when aloe extract, aloe leaf powder, caffeine, panthenol, boswellia extract, and allantoin were all included, the cell protection, skin heat soothing, and skin moisturizing effects against UV stimulation were excellent, suggesting that the composition and weight ratio of the composition affect the improvement of photoaging caused by UV rays, skin soothing, and moisturizing effects.

[0088] The foregoing description of the present invention is for illustrative purposes only, and those skilled in the art will readily appreciate that the present invention can be readily modified into other specific forms without altering the technical spirit or essential characteristics of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. For example, each component described as a single entity may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined manner.

[0089] The scope of the present invention is indicated by the claims set forth below, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

Claims

1. A cosmetic composition for improving skin photoaging caused by ultraviolet rays and thermal aging caused by infrared rays, comprising aloe extract, aloe leaf powder, caffeine, panthenol, boswellia extract, and allantoin.

2. In paragraph 1, The composition is a cosmetic composition for improving photoaging caused by ultraviolet rays and thermal aging caused by infrared rays, comprising the aloe extract and aloe leaf powder in a weight ratio of 3:2 to 3:

12.

3. In paragraph 1, A cosmetic composition for improving photoaging caused by ultraviolet rays and thermal aging caused by infrared rays, wherein the composition further comprises camellia extract.

4. In paragraph 1, A cosmetic composition for improving skin photoaging caused by ultraviolet rays and thermal aging caused by infrared rays, wherein the composition further includes a skin soothing or moisturizing agent.

5. A food composition for improving skin photoaging caused by ultraviolet rays and thermal aging caused by infrared rays, comprising aloe extract, aloe leaf powder, caffeine, panthenol, boswellia extract, and allantoin.

6. In paragraph 5, The composition is a food composition for improving photoaging by ultraviolet rays and thermal aging by infrared rays, comprising the aloe extract and aloe leaf powder in a weight ratio of 3:2 to 3:

12.

7. In paragraph 1, The composition is a food composition for improving skin photoaging caused by ultraviolet rays and thermal aging caused by infrared rays, comprising the aloe extract and aloe leaf powder in a weight ratio of 3:2 to 3:

12.

8. In paragraph 6, A food composition for improving skin photoaging caused by ultraviolet rays and thermal aging caused by infrared rays, wherein the composition further comprises camellia extract.

9. In paragraph 6, A food composition for improving skin photoaging caused by ultraviolet rays and thermal aging caused by infrared rays, wherein the composition further includes a skin soothing or moisturizing agent.

10. A cosmetic skin improvement method comprising a step of applying to the skin a composition comprising aloe extract, aloe leaf powder, caffeine, panthenol, boswellia extract and allantoin.

11. In paragraph 10, A cosmetic skin improvement method, wherein the composition further comprises camellia extract.

12. A method for improving skin photoaging caused by ultraviolet rays and thermal aging caused by infrared rays, comprising a step of administering to a subject a composition comprising aloe extract, aloe leaf powder, caffeine, panthenol, boswellia extract, and allantoin.

13. In paragraph 12, A method for improving skin photoaging caused by ultraviolet rays and thermal aging caused by infrared rays, wherein the composition further comprises camellia extract.

14. In paragraph 12, The above method is a method for improving skin photoaging and infrared-induced thermal aging, which additionally provides skin soothing or moisturizing effects.

15. A use for improving skin photoaging caused by ultraviolet rays and thermal aging caused by infrared rays, comprising a step of administering to a subject a composition comprising aloe extract, aloe leaf powder, caffeine, panthenol, boswellia extract, and allantoin.

16. In paragraph 15, The composition further comprises camellia extract, and is used for improving skin photoaging caused by ultraviolet rays and thermal aging caused by infrared rays.

17. In paragraph 15, The above-mentioned use is for improving skin photoaging and infrared-induced thermal aging, which additionally includes skin soothing or moisturizing use.