Cosmetic composition and topical skin preparation

Abstract

To provide a cosmetic composition, etc. containing a novel functional component.SOLUTION: Provided is a cosmetic composition or an external preparation for skin that comprises a Morinda citrifolia extract as Component (A) together with one or two substances selected from the group consisting of an Alpinia zerumbet extract, a Prunus mume extract, a Paeonia lactiflora extract and a Coix lacryma-jobi var. ma-yuen extract as Component (B). The cosmetic composition, etc. according to the present invention are efficacious for improving skin texture and increasing skin transparency.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a cosmetic composition and an external preparation for skin. [Background technology]

[0002] In cosmetic compositions and topical skin preparations, attempts have been made to improve factors related to skin transparency by applying whitening agents, moisturizing agents, peeling agents, etc. For example, a method is known in which a cosmetic composition containing a whitening agent is applied to the skin to suppress melanin production and improve freckles, and a method is known in which a moisturizing agent is applied to temporarily increase the moisture content on the stratum corneum surface to increase reflected light. Also known is a method in which a layered stratum corneum is removed by a peeling agent.

[0003] On the other hand, the leaves and fruits of Noni (scientific name: Morinda citrifolia, Japanese name: Yaeyama Aoki) are used as food. In addition, anti-aging agents, cell activators, hyaluronic acid synthesis promoters, collagen synthesis promoters, antioxidants, and skin external preparations that contain Noni leaf extract as an active ingredient are known (Patent Document 1).

[0004] Also, Alpinia zerumbet (scientific name: Sannin), whose leaves have a refreshing fragrance, is used as an air freshener, an insect repellent, a health tea, etc. With regard to Alpinia zerumbet, a fibroblast proliferation agent, a beauty food and drink, and a skin cosmetic agent, each of which contains an extract from the leaves and / or stems of Alpinia zerumbet as an active ingredient, are disclosed in Patent Document 2. Ingredient (A): Rhizophora a moisturizing composition comprising, as an active ingredient, one or more kinds selected from Bletilla serrata L.) plants, and one or more kinds selected from Component (B): Bletilla serrata, Scutellaria baicalensis, Cinnamon japonica, Calendula officinalis, Parsley, Coltsfoot, Althaea officinalis, Carrot, Hypericum perforatum, Elderberry, Geranium saxifrage, Saxifraga jujube, Peony root, Angelica acutiloba, Poria cocos, Cassia, Peach, and Alpinia speciosa (Patent Document 3); a skin external preparation comprising a glutathione production promoter having Alpinia speciosa extract as an active ingredient, and a pharmacologically acceptable additive therefor, and a cosmetic composition comprising a glutathione production promoter (Patent Document 4); and a skin clarity improver characterized by containing, as an active ingredient, one or more naturally-derived components selected from the group consisting of a pearl protein hydrolysate, an oil-soluble licorice extract, a goldfish extract, a peony extract, a reddish brown extract, an alpinia oleracea leaf extract, and a rehmannia root extract (Patent Document 5); and a skin external preparation or cosmetic for improving wrinkles containing (a) niacinamide and (b) one or more polyphenol-containing plant extracts selected from soybean, sesame, rose hip, tea plant, Enmeisou, and Alpinia speciosa (Patent Document 6). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP2009-149562A [Patent Document 2] JP 2002-003390 A [Patent Document 3] JP 2008-024660 A [Patent Document 4] JP 2010-195747 A [Patent Document 5] JP 2011-148715 A [Patent Document 6] JP 2019-210216 A Summary of the Invention [Problem to be solved by the invention]

[0006] Although various studies have been conducted to improve the transparency of the skin, the conventional methods using whitening agents, moisturizing agents, and peeling agents have not been sufficiently effective in significantly improving the irregular skin texture or improving the transparency to the extent that it changes the overall impression of the face. Therefore, there has been a demand for the development of an external skin preparation or cosmetic that is more effective in improving the texture and transparency of the skin that have been disturbed by various factors such as seasonal changes, ultraviolet rays, and stress. [Means for solving the problem]

[0007] In view of these circumstances, the present inventors have conducted intensive research to solve the above problems, and as a result have found that a significant effect of improving the texture, transparency, etc. of skin can be obtained by combining a noni extract with one or more selected from the group consisting of an alpinia speciosa extract, a plum extract, a peony extract, and a Job's tears extract, and have thus completed the present invention.

[0008] [1] Ingredient (A) Noni extract, and A cosmetic composition or topical skin preparation comprising one or more components selected from the group consisting of component (B) Alpinia speciosa extract, plum extract, peony extract, and Job's tears extract. [2] The cosmetic composition or topical skin preparation according to 1, comprising component (B) Alpinia speciosa extract. [3] The cosmetic composition or topical skin preparation according to 1 or 2, wherein the mass ratio of component (A):component (B) is 1:0.1-30. [4] A cosmetic composition or topical skin preparation as described in 3, which is intended to improve the transparency of the skin. [5] Ingredient (A) Noni extract, and Component (B) A skin texture improving agent comprising one or two selected from the group consisting of Alpinia speciosa extract, plum extract, peony extract, and Job's tears extract. [6] Ingredient (A) Noni extract, and Component (B) An agent for improving skin transparency, comprising one or two selected from the group consisting of Alpinia speciosa extract, plum extract, peony extract, and Job's tears extract. [7] Ingredient (A) Noni extract, and A method for improving skin texture using component (B) one or two selected from the group consisting of Alpinia speciosa extract, plum extract, peony extract, and Job's tears extract. [8] Ingredient (A) Noni extract, and A method for improving skin transparency using component (B) one or two selected from the group consisting of Alpinia speciosa extract, plum extract, peony extract, and Job's tears extract. Effect of the Invention

[0009] The present invention improves skin texture and transparency. [Brief description of the drawings]

[0010] [Figure 1] The results of a one-week continuous application experiment of plant extracts. Noni extract and Alpinia speciosa extract alone did not sufficiently improve the deterioration of skin texture, but when the two extracts were combined, improvement was seen. [Diagram 2] A photograph of the skin of a 25-year-old woman who used the cosmetic composition for a long time. The skin texture improved with continued use. [Diagram 3] A photograph of the skin of a 40-year-old woman who used the cosmetic composition for a long time. The skin texture improved with continued use. [Figure 4] A photograph of the skin of a 44-year-old woman who used the cosmetic composition for a long time. The skin texture improved with continued use. [Diagram 5] 1 is a graph showing the results of visual evaluation of transparency. The evaluation was done on a 5-point scale from 0 to 4, and the average value is shown. * indicates a significant difference at P<0.05. [Figure 6] A representative example (female, 25 years old) whose skin transparency improved after continuous use of the cosmetic composition. Visual transparency score improved from 3 to 2. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The present invention relates to a cosmetic composition, a skin topical preparation, and an agent having various actions, each containing a plant extract such as a noni extract or an alpinia zerumbet extract. In the following, the cosmetic composition (cosmetics include medicinal cosmetics, which are quasi-drugs. The same applies below), the skin topical preparation, and the agent having various actions may be collectively referred to as a cosmetic composition, etc. In the present invention, when referring to a plant extract, it is not limited to the raw material part or preparation method, and includes various things obtained by processing the plant. In the present invention, when referring to an extract, it includes a narrowly defined extract (sometimes called an extract) obtained by using a solvent or osmotic pressure, a pressed product, and a distillate, unless otherwise specified.

[0012] [Active ingredients] (Component (A)) The cosmetic composition of the present invention contains a noni extract as component (A). Noni (scientific name: Morinda citrifolia, Japanese name: Yaeyama Aoki) is used as food for its leaves and fruits. In the present invention, extracts made from various parts of noni, such as the whole plant, flowers, calyx, seeds, fruits, leaves, branches, bark, root bark, rhizomes, roots, etc., can be used as raw materials, but extracts made from fruits are preferred. The extracts may be obtained from raw materials, or may be extracted from raw materials that have been subjected to drying, defatting, decolorization, fermentation, or other treatments. In the present invention, it is preferred to use, as component (A), a product obtained by adding a solvent to the squeezed juice of noni fruit (noni juice).

[0013] (Component (B)) The cosmetic composition etc. of the present invention contains, as component (B), one or more selected from the group consisting of Alpinia speciosa extract, plum extract, peony extract, and Job's tears extract.

[0014] In one preferred embodiment, the cosmetic composition etc. contains an extract of Alpinia zerumbet as component (B). Alpinia zerumbet (Shell Ginger, scientific name: Alpinia zerumbet) is also called Sannin, and its leaves have a refreshing fragrance and are used as air fresheners, insect repellents, health teas, etc. In the present invention, extracts made from various parts of Alpinia zerumbet, such as the whole plant, flowers, calyx, seeds, fruits, leaves, branches, bark, root bark, rhizomes, roots, etc., can be used as raw materials, but an extract made from leaves is preferred. The raw materials may be fresh or may have been treated by drying, defatting, bleaching, fermentation, etc.

[0015] The cosmetic composition of the present invention may contain a plum extract as component (B). In the present invention, an extract made from various parts of plum (scientific name: Prunus mume), such as the whole plant, flowers, calyx, seeds, fruit, leaves, branches, bark, root bark, rhizome, root, etc., may be used as a raw material, but an extract made from plum fruit is preferred. The raw material may be fresh or may be treated by drying, defatting, bleaching, fermentation, etc. In the present invention, plum extracts from various plum varieties may be used. Examples of the varieties include large-fruited varieties such as Shirakaga, Nanko, Ousyuku, and Furushiro, as well as small-fruited varieties such as Koshu Koume and Ryukyo Koume.

[0016] The plum extract includes plum vinegar. Plum vinegar is an extract from plums obtained when the plums are salted, and is called vinegar due to its strong sour taste. In addition to white plum vinegar (shiroumezu), there is also red plum vinegar (akaumezu), which is colored red by adding salted perilla leaves, and red plum vinegar (kobaizu), and any of these can be used in the present invention. The plum vinegar referred to in the present invention includes plum vinegar and processed plum vinegar.

[0017] As the raw material for ume vinegar, ume that have ripened on the tree and fallen naturally are preferred. There is no particular restriction on the ratio of ume to salt, but the amount of salt is preferably 5 to 30%, more preferably 7 to 20 g, per 100 g of ume. The salt used is preferably one with a sodium chloride content of 90% or more, such as rock salt, sea salt, and lake salt, and refined salts that have been further refined can also be used. The period of salting is sufficient as long as a sufficient amount of ume vinegar is obtained, and specifically, it is about 1 day to 1 year, preferably about 1 week to 2 months. It is preferable to store the ume in a cool, dark place during salting. In order to obtain ume vinegar more efficiently, it is preferable to place 50 to 250 g, preferably 100 to 200%, of a weight on 100 g of salted ume.

[0018] Normally, plum vinegar contains a high salt content of about 15 to 30%, but in the present invention, plum vinegar that has been desalted by an appropriate method can be used. Depending on the formulation of the cosmetic or skin topical preparation to be blended, the stability may be improved by using desalted plum vinegar. In addition, desalted plum vinegar is preferable in terms of cytotoxicity. There are no limitations on the desalting method, and examples include vacuum distillation, centrifugation, and dialysis (electrodialysis). For example, the method described in JP-B-57-24103 can be used. It is preferable to use such a method to reduce the salt concentration to 10% or less, preferably 1% or less, and more preferably 0.1% or less, since this increases the stability of the cosmetic or skin topical preparation.

[0019] A preferred embodiment of the present invention is one that contains concentrated, desalted plum vinegar that has been subjected to a desalting treatment after concentration. A vacuum concentrator is preferably used for concentration. There is no particular limitation on the method for producing this concentrated, desalted plum vinegar, but for example, the method described in Patent Publication No. 3524021 can be used. One example is concentrated, desalted plum vinegar obtained by concentrating using a vacuum concentrator, desalting using electrodialysis, and further purifying using precision filtration or the like as desired. Commercially available products of such concentrated, desalted plum vinegar include Plum Sour Type A, Plum Sour Type B, and Plum Sour Type C (all manufactured by SunActis Co., Ltd.), but are not limited to these.

[0020] Another preferred embodiment of the present invention is an embodiment that contains heated plum vinegar that has been heat-treated. There is no particular limitation on the method for producing this, but for example, the method described in JP-A-2001-17116 can be used. It is also preferred to use plum vinegar that has been heat-treated from the concentrated, desalted plum vinegar described above.

[0021] Another preferred embodiment of the present invention is one in which the plum extract is obtained by extracting desalted plum vinegar with a solvent and then concentrating the extract.

[0022] The cosmetic composition etc. of the present invention may contain a peony extract as component (B). Peony (scientific name: Paeonia lactiflora) has a variety of flower shapes and colors and is popular as a horticultural plant, but the roots of peony have astringent, anti-inflammatory, analgesic, antibacterial, hemostatic, blood purifying and anticonvulsant properties and are known as a herbal medicine that is incorporated into medicines for abdominal pain, muscle pain, diarrhea, etc.

[0023] In the present invention, extracts can be used from various parts of the peony, such as the whole plant, flowers, calyx, seeds, fruits, leaves, branches, bark, root bark, rhizomes, roots, etc., but it is preferable to use an extract from the root. The raw material may be fresh or may have been treated by drying, defatting, bleaching, fermentation, etc.

[0024] The cosmetic composition of the present invention may contain a Job's tears extract as component (B). Job's tears (scientific name: Coix lacryma-jobi) fruit is used as a staple food or as food such as Job's tears tea. Job's tears fruit without the skin is also well known as the herbal medicine Coix lacryma-jobi, which is effective against warts and rough skin when taken orally. In addition, Job's tears fruit extract is known to have moisturizing and whitening effects when applied to the skin, and is sometimes incorporated into basic cosmetics.

[0025] In the present invention, extracts made from various parts of Job's tears, such as the whole plant, flowers, calyx, fruit, leaves, branches, bark, root bark, rhizomes, roots, etc., can be used as raw materials, but extracts made from fruit are preferred. The raw materials may be raw or may have been treated, such as dried, defatted, bleached, fermented, etc. The extracts may be obtained from raw raw materials or may be extracts from raw materials that have been treated, such as dried, defatted, bleached, fermented, etc.

[0026] According to the present inventor's research, only a limited number of plant extracts can achieve the desired effect when combined with the component (A) Noni extract, and it has been found that, for example, the desired effect cannot be achieved with Sophora flavescens extract and Arnica extract. Sophora flavescens (scientific name: Sophora flavescens) is known to have anti-inflammatory and anti-ulcer effects as a herbal medicine made from its roots. Arnica unalascensis (scientific name: Arnica unalascensis) is known to have anti-inflammatory effects in its flower extracts, and is used as an ingredient in ointments, creams, gels, and external tinctures for treating trauma, bruises, and sprains.

[0027] (Extraction method) The plant extract used as component (A) or component (B) can be obtained by an extraction method using various solvents. Examples of the extraction solvent include water, alcohols (e.g., lower alcohols such as methanol, anhydrous ethanol, and ethanol, or polyhydric alcohols such as propylene glycol, 1,3-butylene glycol, glycerin, and dipropylene glycol), ketones such as acetone, esters such as diethyl ether, dioxane, acetonitrile, and ethyl acetate, organic solvents such as xylene, benzene, and chloroform, animal oils, vegetable oils, and supercritical carbon dioxide. These solvents can be used alone or in any combination of two or more.

[0028] For the noni extract, preferred examples of the extraction solvent are any one selected from the group consisting of water, alcohols, and mixed solvents thereof. In a more preferred embodiment, water or a mixed solvent of water and ethanol, propylene glycol, 1,3-butylene glycol (sometimes simply called butylene glycol), or glycerin is used as the extraction solvent. In a further preferred embodiment, noni juice is used as the raw material, and a mixed solution of water and 1,3-butylene glycol is used as the extraction solvent. This is because the components having the desired effect can be sufficiently extracted. When using a mixed solvent of water and 1,3-butylene glycol, the ratio can be appropriately adjusted, but a 20 to 80 volume % butylene glycol aqueous solution is preferred, a 30 to 70 volume % butylene glycol aqueous solution is more preferred, and a 40 to 60 volume % butylene glycol aqueous solution is even more preferred. In the present invention, when the concentration of the aqueous solvent is expressed in %, it is a value based on the volume, unless otherwise specified. The ratio of the raw material and the solvent during extraction can be appropriately adjusted. Specifically, for example, 1 to 100 times the amount of the extraction solvent is added to crushed plant raw materials or dried products, or to fruit juice, and the mixture is left to stand at room temperature under normal pressure for about 1 hour to 2 weeks, or extracted at a temperature below the boiling point of the extraction solvent for about 10 minutes to 10 hours, and then the filtrate obtained by filtration is dried under reduced pressure or freeze-dried to obtain a plant extract.

[0029] For the Alpinia speciosa extract, preferred examples of the extraction solvent are any selected from the group consisting of water, alcohols, and mixed solvents thereof. In a more preferred embodiment, water or a mixed solvent of water with ethanol, propylene glycol, 1,3-butylene glycol (sometimes simply called butylene glycol), or glycerin is used as the extraction solvent. In a further preferred embodiment, a mixed solution of water and ethanol is used as the extraction solvent. This is because the components having the desired effect can be sufficiently extracted by using these. When using a mixed solvent of water and ethanol, the ratio can be appropriately adjusted, but a 40 to 95% by volume ethanol aqueous solution is preferred, a 50 to 90% by volume ethanol aqueous solution is more preferred, and a 60 to 80% by volume ethanol aqueous solution is even more preferred. The ratio of the raw material and the solvent during extraction can be appropriately adjusted. For example, the plant raw material or dried product is crushed into fine powder, 1 to 100 times the amount of extraction solvent is added, and the mixture is left to stand at room temperature under normal pressure for about 1 hour to 2 weeks, or extracted at a temperature below the boiling point of the extraction solvent for about 10 minutes to 10 hours, and then filtered. The filtrate obtained is dried under reduced pressure or freeze-dried to obtain a plant extract.

[0030] For the plum extract, preferred examples of the extraction solvent are any selected from the group consisting of water, alcohols, and mixed solvents thereof. In a more preferred embodiment, water or a mixed solvent of water with ethanol, propylene glycol, 1,3-butylene glycol (sometimes simply called butylene glycol), or glycerin is used as the extraction solvent. In a further preferred embodiment, a mixed solution of water and 1,3-butylene glycol is used as the extraction solvent for desalted plum vinegar. This is because the components having the desired effect can be sufficiently extracted. When using a mixed solvent of water and 1,3-butylene glycol, the ratio can be appropriately adjusted, but a 20 to 80 volume % butylene glycol aqueous solution is preferred, a 30 to 70 volume % butylene glycol aqueous solution is more preferred, and a 40 to 60 volume % butylene glycol aqueous solution is even more preferred. The ratio of the raw material and the solvent during extraction can be appropriately adjusted. For example, 1 to 100 times the amount of extraction solvent is added to crushed plant raw materials or dried products, or to plum vinegar, and the mixture is left to stand at room temperature under normal pressure for about 1 hour to 2 weeks, or extracted at a temperature below the boiling point of the extraction solvent for about 10 minutes to 10 hours, and then the filtrate obtained by filtration is dried under reduced pressure or freeze-dried to obtain a plant extract.

[0031] For the peony extract, preferred examples of the extraction solvent are any selected from the group consisting of water, alcohols, and mixed solvents thereof. In a more preferred embodiment, water or a mixed solvent of water with ethanol, propylene glycol, 1,3-butylene glycol (sometimes simply called butylene glycol), or glycerin is used as the extraction solvent. In a further preferred embodiment, a mixed solution of water and 1,3-butylene glycol is used as the extraction solvent. This is because the components having the desired effect can be sufficiently extracted by using these. When using a mixed solvent with water, the ratio can be appropriately adjusted, but a 20 to 80 volume % butylene glycol aqueous solution is preferred, a 30 to 70 volume % butylene glycol aqueous solution is more preferred, and a 40 to 60 volume % butylene glycol aqueous solution is even more preferred. The ratio of the raw material and the solvent during extraction can be appropriately adjusted. For example, the plant raw material or dried product is crushed into fine powder, 1 to 100 times the amount of extraction solvent is added, and the mixture is left to stand at room temperature under normal pressure for about 1 hour to 2 weeks, or extracted at a temperature below the boiling point of the extraction solvent for about 10 minutes to 10 hours, and then filtered. The filtrate obtained is dried under reduced pressure or freeze-dried to obtain a plant extract.

[0032] With respect to the Job's tears extract, preferred examples of the extraction solvent are any selected from the group consisting of water, alcohols, and mixed solvents thereof. In a more preferred embodiment, water or a mixed solvent of water with ethanol, propylene glycol, 1,3-butylene glycol (sometimes simply called butylene glycol), or glycerin is used as the extraction solvent. In a further preferred embodiment, a mixed solution of water and 1,3-butylene glycol is used as the extraction solvent. This is because the components having the desired effect can be sufficiently extracted by using these. When using a mixed solvent with water, the ratio can be appropriately adjusted, but a 30 to 90 volume % butylene glycol aqueous solution is preferred, a 40 to 80 volume % butylene glycol aqueous solution is more preferred, and a 50 to 70 volume % butylene glycol aqueous solution is even more preferred. The ratio of the raw material and the solvent during extraction can be appropriately adjusted. For example, the plant raw material or dried product is crushed into fine powder, 1 to 100 times the amount of extraction solvent is added, and the mixture is left to stand at room temperature under normal pressure for about 1 hour to 2 weeks, or extracted at a temperature below the boiling point of the extraction solvent for about 10 minutes to 10 hours, and then filtered. The filtrate obtained is dried under reduced pressure or freeze-dried to obtain a plant extract.

[0033] The extract obtained as described above can be used as it is, but if necessary, it may be subjected to purification treatment such as deodorization and decolorization within a range that does not impair the intended effect. Such purification treatment may be performed by any conventional means, for example, filtration or adsorption, decolorization, purification using an ion exchange resin or an activated carbon column. Furthermore, a purified product in the form of a solution, paste, gel, or powder can be obtained by freeze-drying or concentration treatment.

[0034] The plant extract used as component (A) or component (B) may be a pressed product or a distillate. The pressed product can be produced using a conventional press. The distillate can be obtained by atmospheric distillation, reduced pressure distillation, steam distillation, etc.

[0035] [Application] The cosmetic composition of the present invention containing the above-mentioned component (A) and component (B) has an effect of improving skin texture and skin transparency. The present invention also provides an agent for improving skin texture and an agent for improving skin transparency, which contain component (A) and component (B) as active ingredients.

[0036] (Improvement of skin texture) The present invention can improve skin texture. Skin texture is composed of skin grooves and skin ridges between the skin grooves. Generally, skin texture is good when the skin grooves are uniformly and clearly visible, the skin ridges are plump, and the size is uniform. As described in JP2005-58756A, skin texture can be evaluated on a five-level scale. Skin texture can be evaluated by visual inspection by an expert, photography, replicas, etc.

[0037] Whether or not the use of a certain cosmetic composition etc. has improved skin texture can be determined by comparing, using an appropriate method, the condition of the skin texture before and after use of the cosmetic composition etc. to be evaluated.

[0038] (Improvement of skin clarity) The present invention can improve the transparency of the skin. The transparency of the skin is defined as a state in which the skin looks clear and transparent (Japan Cosmetic Industry Association). The transparency of the skin can be evaluated by visual inspection by an expert, as well as by indicators such as light transmittance, image analysis, saturation, hue angle, and isotropy (no bias in the skin texture).

[0039] Whether or not the use of a certain cosmetic composition etc. has improved skin transparency can be determined by comparing the skin transparency before and after use of the cosmetic composition etc. to be evaluated using visual inspection, photography, replicas, etc.

[0040] [Composition, agent] The mass ratio of component (A) to component (B) (component (A):component (B)) in the cosmetic composition of the present invention can be appropriately set as long as the desired effect is achieved, and can be, for example, 1:0.1-30, preferably 1:0.3-30, more preferably 1:0.6-10, and even more preferably 1:1-5. This range is because a synergistic effect can be achieved with a smaller amount of each component. Such a range is particularly suitable when component (B) is an extract of Alpinia speciosa. Note that when the ratio of component (A) to component (B) is shown in relation to the present invention, when multiple extracts are used as component (B), the ratio refers to the total amount of all the extracts. The amount of the extract shown in relation to the present invention is the amount of the pure extract (sometimes referred to as solid content) unless otherwise specified.

[0041] The content of component (A) in the cosmetic composition etc. of the present invention can be appropriately set as long as the desired effect is achieved, but is preferably 0.00005 to 10 mass% (hereinafter simply indicated as "%"), more preferably 0.0005 to 5%, and even more preferably 0.005 to 0.5%. Within this range, the component (A) can be stably blended and can exhibit high effects. From the viewpoint of more fully achieving the desired effects, the content is preferably 0.007 to 0.4%, more preferably 0.009 to 0.3%, and even more preferably 0.01 to 0.2%.

[0042] The content of component (B) in the cosmetic composition etc. of the present invention (when multiple active ingredients are included, the total content of all of them) can be appropriately set as long as the desired effect is achieved, but is preferably 0.00005 to 10 mass% (hereinafter simply indicated as "%"), more preferably 0.0005 to 5%, and even more preferably 0.005 to 0.5%. Within this range, the component can be stably blended and a high effect can be achieved. From the viewpoint of more fully achieving the desired effect, the content is preferably 0.007 to 0.4%, more preferably 0.009 to 0.3%, and even more preferably 0.01 to 0.2%.

[0043] The cosmetic composition etc. of the present invention may contain various additives acceptable for use as cosmetic compositions or topical skin preparations, provided that the intended effects are not impaired. Examples of such additives include water (purified water, hot spring water, deep sea water, etc.), surfactants (emulsifiers, suspending agents, stabilizers, etc.), antioxidants, preservatives, gelling agents, alcohols, film-forming agents, colorants, fragrances, deodorants, salts, pH adjusters, cooling agents, chelating agents, keratolytic agents, enzymes, vitamins, etc.

[0044] The cosmetic composition and topical skin preparation of the present invention contain component (A) and component (B) or the agent of the present invention having various actions, but may also contain other components that are acceptable for use in cosmetic compositions or topical skin preparations and have an effect on the skin, provided that the intended effects are not impaired. Examples of such components include whitening agents, ultraviolet protection agents, antibacterial agents, anti-inflammatory agents, cell activators, active oxygen removers, moisturizers, skin homeostasis maintaining components, etc.

[0045] The cosmetic composition and topical skin preparation of the present invention can be in various dosage forms, such as solids, semi-solids, and liquids, depending on the purpose of use. More specifically, the cosmetic composition of the present invention can be in the form of skin care cosmetics, such as cleansing, face wash, lotion, milky lotion, cream, massage product, pack product, serum / gel, lip care product, etc.; base makeup cosmetics, such as foundation, face powder, makeup base, concealer, etc.; point makeup cosmetics, such as lipstick, lip gloss / liner, cheek product, eye shadow, eyeliner, mascara, eyebrow product, etc.; body care cosmetics, such as soap, liquid cleanser, sunscreen cream, bath additive, etc.; hair care cosmetics, such as shampoo, rinse, hair treatment, hair styling product, hair tonic, hair growth agent, scalp treatment, etc. In addition, it can be in the form of plaster, ointment, cataplasm, liniment, lotion, liniment, patch, aerosol (spray medicine). More specifically, the topical skin preparation of the present invention can be a plaster, an ointment, a cataplasm, a liniment, a lotion, an application agent, a patch, an aerosol (spray medicine), a microneedle array, or an iontophoresis agent.

[0046] The cosmetic composition and topical skin preparation of the present invention may be used continuously, for example, twice a day, for example, for 3 days or more, preferably 1 week or more, more preferably 2 weeks or more, and even more preferably 1 month or more.

[0047] The cosmetic composition and topical skin preparation of the present invention are preferably used immediately after washing the face, and are also preferably used together with an oil preparation or cream.

[0048] The cosmetic composition and topical skin preparation of the present invention may also be packaged products. These embodiments may include, in addition to the cosmetic composition or topical skin preparation, a description of the method of use or the intended effects and efficacy as described above (e.g., a box, container, label, instruction manual, tag). EXAMPLES

[0049] [Production Example 1: Production of Noni Extract] 1 L of 50% by volume butylene glycol solution was added to 1 kg of Morinda citrifolia fruit juice, and the mixture was left for 1 week. After that, it was filtered and concentrated to prepare a noni extract with a pure extract content of 1% by mass.

[0050] [Production Example 2: Production of Alpinia speciosa extract] A 70% ethanol solution was added to 10 kg of the leaves of Alpinia Zerumbet (Zingiberaceae) and extracted by heating at 65°C for 3 hours, and a 70% ethanol solution was added to the residue and extracted by heating in the same manner. Water was added to the obtained extract to adjust the ethanol concentration to 50% by volume, and the extract was left to stand in a cool, dark place for 1 week, and then filtered to prepare an Alpinia Zerumbet extract with a pure extract content of 0.3% by mass.

[0051] [Production Example 3: Production of plum extract] 1 kg of salt was added to 10 kg of mature plums (Prunus mume), and the components obtained by salting were desalted (salt concentration 0.1% or less). 1 L of 50% by volume butylene glycol solution was added to this and left for 1 week. This was concentrated to produce a plum extract with a pure extract content of 4% by mass.

[0052] [Production Example 4: Production of peony extract] 100 g of roots of the peony (Peeonia lactiflora) of the Paeoniaceae family were cut into thin strips, and 500 L of a 50% by volume aqueous solution of butylene glycol was added and extracted at 70°C for 2 hours, after which the extract was cooled to 25°C and filtered. The extract was then left to stand for one week, filtered again, and a 50% by volume aqueous solution of butylene glycol was added to produce a peony extract with a pure extract content of 0.1% by mass.

[0053] [Production Example 5: Production of Job's Tears Extract] 200 mL of a 60% by volume aqueous solution of butylene glycol was added to 10 g of ground seeds (jobi seed kernels) of the Poaceae family (Coix lacryma-jobi var. ma-yuen) from which the seed coat had been removed, and extraction was carried out at room temperature for 3 days. The extract was then filtered, the solvent was evaporated to dryness, and a 60% by volume aqueous solution of butylene glycol was added to prepare a jobi seed extract with a pure extract content of 1 mass%.

[0054] [Production Example 6: Production of Sophora flavescens extract] 200 g of roots of Sophora flavescens (Fabaceae) were dried and crushed, and extracted with 1 L of 50% hydrated butylene glycol at 20°C for 3 days by stirring. The extract was then filtered and 50% hydrated butylene glycol was added to prepare a Sophora flavescens extract with a pure extract content of 1% by mass.

[0055] [Production Example 7: Production of Arnica Extract] 100 g of flowers of Arnica unalascensis (Asteraceae) was added with 1 L of 75 vol% butylene glycol aqueous solution and extracted at 30°C for 3 days. The mixture was then filtered and 75 vol% butylene glycol aqueous solution was added to prepare an Arnica extract with a pure extract content of 1 mass%.

[0056] [Evaluation of plant extracts] (method) 20% volumetric water-containing butylene glycol water was mixed with the noni extract of Production Example 1 and / or the Alpinia speciosa extract of Production Example 2 to prepare samples (1% noni extract, 1% alpinia speciosa extract, 0.5 noni extract, 0.5% alpinia speciosa extract, 0.5%). An appropriate amount of each sample was applied to the face twice a day, morning and evening, and the results were observed using a microscope (HIROX) before use and after one week. The observation results are shown in Figure 1.

[0057] (result) While neither extract alone significantly improved skin texture, the combination of the two extracts did.

[0058] [Evaluation as a lotion] (method) An appropriate amount of the lotion prepared according to the formula and manufacturing method described below was applied to the face twice a day, morning and evening, and evaluations were conducted before use (0w), after two weeks (2w), and after four weeks (4w).

[0059] [Table 1]

[0060] (Manufacturing method) (1) Heat and mix 4 and 15. (2) Heat and mix 11 to 13. (3) Add (2) to (1) and stir. (4) The remaining raw materials were added to (3) and stirred to obtain a lotion.

[0061] (Evaluation method and results) [Kime] Observations were made using a microscope (manufactured by Moritex Corporation). Examples of the observation results are shown in Figures 2 to 4. Improvements in skin texture were observed in all age groups through continued use of the lotion.

[0062] [Visual transparency] Transparency is a visual assessment of whether the skin appears clear and transparent. Expert assessors visually assessed the subjects' skin according to the following criteria. Figure 5 shows the averaged results of the 33 subjects. An example of a subject is shown in Figure 6.

[0063] 0-Clear skin 1- Slightly transparent skin 2-Normal skin 3- Skin that is slightly opaque 4. Dull skin

[0064] It was visually confirmed that continued use of the lotion resulted in increased transparency.

[0065] [Examples 1 to 5, Comparative Examples 1 to 4] A lotion was prepared according to the formula and manufacturing method shown in the table below. A panel of 33 cosmetic evaluation experts evaluated the improvement of skin texture and improvement of transparency on a 5-point scale based on the following evaluation criteria. The average score was calculated based on the scores of all panelists, and judged on a 4-point scale according to the following criteria. The results are also shown in the table.

[0066] [Table 2]

[0067] (Manufacturing method) How to make lotion A: Components 1 to 7 were mixed uniformly at 80°C. B: Components 8 to 16 were mixed uniformly at 80°C. C: A was added to B and mixed at 80°C. D: The remaining raw materials were added to C at room temperature and stirred to obtain a lotion.

[0068] (Evaluation Criteria) Improve skin texture (Score):(Evaluation) 5 points: Skin texture has improved significantly. 4 points: Skin texture has improved slightly. 3 points: If anything, the texture has improved. 2 points: Neither. 1 point: Skin texture did not improve.

[0069] Improved transparency (Score):(Evaluation) 5 points: Transparency was greatly improved. 4 points: Transparency improved slightly. 3 points: If anything, transparency has improved. 2 points: Neither. 1 point: Transparency was not improved.

[0070] (Judgment criteria) ◎: Average 4 or more ○: Average 2.5 or more and less than 4 △: Average 1.5 or more and less than 2.5 ×: Average 1.5 or less

[0071] (result) Skin lotions using noni extract in combination with Alpinia speciosa extract, plum extract, peony extract, and Job's tears extract were found to have skin texture and transparency improving effects. Sophora flavonoides extract and Arnica extract were not found to have a transparency improving effect. The product containing Alpinia speciosa as ingredient B was particularly excellent in both skin texture and transparency improving effects.

[0072] [Formulation example 1: Emulsion] (Component) (mass%) 1. Polyoxyethylene (20) sorbitan monooleate 1.0 2. Sorbitan Sesquioleate 0.5 3. Glyceryl trioctanoate 0.5 4. Jojoba oil 0.5 5. Squalane 0.5 6. Remaining purified water 7. Disodium edetate 0.1 8. Methylparaben 0.2 9. Phenoxyethanol 0.5 10. Glycerin 5.0 11. Propanediol 1.0 12. Propylene glycol 2.0 13. Sodium lactate 0.5 14.2-O-α-D-glucosyl-L-ascorbic acid 1.0 15. Noni extract of Preparation Example 1 0.05 16. Plum extract of Production Example 3 0.05 17. Xanthan gum 0.05 18.Purified water 10.0 19. Ethanol 3.0 20.Fragrance 0.01

[0073] (Manufacturing method) A: Component 17 swells in component 18 heated to 70°C. B: Heat and mix ingredients 1 to 5 at 70°C. C: Heat ingredients 6 to 13 to dissolve at 70°C, then add to B and emulsify. D: After cooling C to room temperature, ingredients 14 to 16, 19, 20 and A were added to obtain an emulsion.

[0074] The emulsion was excellent in both "improving skin texture" and "improving skin transparency."

[0075] [Formulation example 2: Cream] (Component) (mass%) 1. Remaining purified water 2.1,3-Butylene glycol 15 3. Glycerin 5 4. Phenoxyethanol 0.5 5. Sorbitan monooleate 0.5 6. Polyoxyethylene (20) sorbitan monooleate 0.5 7. Sodium N-stearoyl-N-methyl taurate 1 8. Hydrogenated soybean phospholipids 0.5 9. Hydrogenated Polydecene 5 10. Hydrogenated polyisobutene 5 11 Glyceryl triethylhexanoate 5 12. Methylphenylpolysiloxane 2 13. Phytosteryl Macadamiate 2 14. Cetostearyl alcohol 2 15. Behenyl Alcohol 1 16. Rice germ oil 1 17. Tocopherol nicotinate 0.2 18.Purified water 10 19. Acrylic acid / alkyl methacrylate copolymer CARBOPOL1382 (LUBRIZOL) 0.02 20. Sodium hydroxide 0.02 21. Noni extract of Production Example 1 0.05 22. Peony extract of Preparation Example 4 0.01 23. Job's tears extract of Production Example 5 0.01 24. Ethanol 3 25.Fragrance 0.2

[0076] (Manufacturing method) A: Dissolve ingredients 1 to 3 uniformly at 80°C. B: Dissolve ingredients 4 to 17 uniformly at 80°C. C: Add B to A with stirring at 80℃ and emulsify. D: C was cooled to 40°C and ingredients 18 to 25 were added to obtain an oil-in-water emulsion cream.

[0077] The cream was excellent in both "improving skin texture" and "improving skin transparency."

[0078] [Formulation example 3: Non-woven fabric impregnated pack] (Component) (mass%) 1. Polyoxyethylene (10 mol) phytosterol 1 2. Stearyl alcohol 0.2 3. Cetanol 0.2 4. Hydrogenated soybean phospholipid 1 5. Propylene glycol 10 6. Diglycerin 8 7. Liquid Paraffin 1 8. Meadowfoam oil 0.5 9. Ubiquinone 0.02 10.Purified water 1 11. Ethanol 3 12. Remaining purified water 13. Niacinamide 9 14. Noni extract of Production Example 1 0.03 15. Alpinia speciosa extract of Production Example 2 0.03 16. Peony extract of Preparation Example 4 0.01 17. Plum extract of Production Example 3 0.01

[0079] (Manufacturing method) A: Melt and mix ingredients 1 to 6 at 80°C. B: Heat ingredients 7 to 9 to 80°C and add to A, then add ingredient 10 heated to 75°C and emulsify. C: This was stirred and cooled, and components 11 to 17 were added and mixed to obtain an oil-in-water emulsion. A nonwoven fabric was impregnated with this to obtain a nonwoven fabric impregnated pack material.

[0080] The nonwoven fabric impregnated pack was excellent in both "improving skin texture" and "improving skin transparency."

[0081] [Formulation example 4: Sunscreen] (Component) (mass%) 1. Stearic acid 1 2. Polyoxyethylene (20 mol) sorbitan monooleate 0.5 3. Sorbitan Sesquioleate 0.5 4. Behenyl alcohol 0.5 5. Glyceryl 2-ethylhexanoate 2 6. 2-Ethylhexyl p-methoxycinnamate 10 7. Astaxanthin 0.1 8. Squalane 2 9. Tocopherol Acetate 1 10. Macadamia nut oil 1 11. Dipropylene glycol 10 12. Triethanolamine 1 13. Remaining purified water 14. Glycerin 5 15.1,2-Pentanediol 5 16. Acrylic acid / alkyl methacrylate copolymer 0.2 17. Noni extract of Production Example 1 0.01 18. Alpinia speciosa extract of Production Example 2 0.05 19. Citric acid 0.1 20. Disodium succinate 0.1 21. Ethanol 10 22.Fragrance 0.02

[0082] (Manufacturing method) A: Dissolve ingredients 1 to 10 uniformly at 80°C. B: Dissolve ingredients 11 to 15 uniformly at 80°C. C: Add A to B and emulsify. D: C was stirred and cooled, and components 16 to 22 were added to obtain an oil-in-water emulsion sunscreen.

[0083] Oil-in-water emulsion sunscreens were superior in both "improvement of skin texture" and "improvement of skin transparency."

Claims

1. Component (A) Noni extract, and Ingredient (B) Alpinia speciosa extract A cosmetic composition or an external skin preparation for improving skin transparency or skin texture, comprising:

2. The cosmetic composition or topical skin preparation according to claim 1, wherein the mass ratio of component (A):component (B) is 1:0.1-30.

3. 3. The cosmetic composition or topical skin preparation according to claim 1, which is used to improve skin transparency.

4. Component (A) Noni extract, and Ingredient (B) Alpinia speciosa extract An agent for improving skin transparency or skin texture comprising:

5. The agent according to claim 4, which is for improving skin transparency.

6. Component (A) Noni extract, and Ingredient (B) Alpinia speciosa extract A method for improving skin clarity or skin texture using the above-mentioned method.

7. 7. The method according to claim 6 for improving skin clarity.

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