Skin cosmetic

Abstract

To provide a skin cosmetic which offers a sufficient feeling of moisture, reduces a sense of stickiness, and ameliorates a squeaky feel.SOLUTION: A skin cosmetic comprises: (A) one or more humectant selected from the group consisting of betaine, polyhydric alcohols, sodium hyaluronate, and sodium chondroitin sulfate; (B) a raspberry extract; and (C) a lemon extract.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to skin cosmetics.

Background Art

[0002] Conventionally, as a role of skin care, imparting and maintaining a moisturizing feeling to the skin, and skin cosmetics that achieve this are preferred. On the other hand, when a large amount of a moisturizing component is blended, a sticky feeling or even a squeaking feeling may be felt.

[0003] Therefore, various studies have been made to improve the sticky feeling while imparting a moisturizing feeling. Skin cosmetics using saccharides and specific extracts, skin cosmetics using a moisturizer and specific plant extracts, vitamins, etc. (for example, see Patent Documents 1 and 2) are known.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] The above-mentioned conventional skin cosmetics are considered to have a certain effect in alleviating the sticky feeling, but they have not fully achieved sufficient moisturizing and fully exerted the effect of alleviating the sticky feeling. In general, as a touch, not only a sticky feeling but also a lack of a squeaking feeling is preferred, but they do not have such an effect. Against this background, there is a great demand for skin cosmetics that have sufficient moisturizing, alleviate the sticky feeling, and improve the squeaking feeling.

[0006] The present invention has been made in view of the above circumstances, and an object thereof is to provide a skin cosmetic that has sufficient moisturizing feeling, relieves stickiness, and improves a squeaking feeling.

Means for Solving the Problems

[0007] As a result of further intensive studies to solve the above problems, the present inventors have found that by combining a humectant, a strawberry extract, and a lemon extract, a cosmetic can be obtained that has sufficient moisturizing feeling, relieves stickiness, and improves a squeaking feeling, and thus completed the present invention. Further, when it is a sheet pack that can keep the cosmetic on the skin for a long time to enhance the beauty effect on the skin, it has been found that the moisturizing feeling can be further enhanced, the stickiness can be relieved, and the squeaking feeling can be improved, and thus completed the present invention.

[0008] The skin cosmetic according to the present invention (A) One or more humectants selected from the group consisting of betaine, polyhydric alcohol, sodium hyaluronate, and sodium chondroitin sulfate, (B) A strawberry extract, (C) A lemon extract, and contains.

[0009] In the skin cosmetic according to the present invention, the component (A) may be betaine.

[0010] Furthermore, the skin cosmetic according to the present invention may be a sheet pack.

Effects of the Invention

[0011] According to the present invention, a skin cosmetic can be provided that has sufficient moisturizing feeling, relieves stickiness, and improves a squeaking feeling.

Mode for Carrying Out the Invention

[0012] ​Hereinafter, embodiments of the present invention will be described in detail. The skin cosmetic according to this embodiment combines one or more humectants selected from the group consisting of betaine, polyhydric alcohol, sodium hyaluronate, and sodium chondroitin sulfate, a strawberry extract, and a lemon extract.

[0013] <(A) Humectant> (Component (A) is one or more humectants selected from the group consisting of betaine, polyhydric alcohol, sodium hyaluronate, and sodium chondroitin sulfate. Humectants are components commonly used in cosmetics, and moisturization means providing moisture to the skin and maintaining an atmosphere that can prevent transpiration. The polyhydric alcohol used as the humectant is not particularly limited, but preferably selected from diglycerin, polyglycerin, sorbitol, maltitol, dipropylene glycol, 1,3-propanediol, ethylene glycol, diethylene glycol, and isoprene glycol.

[0014] From the viewpoint of having a sufficient moisturizing effect, betaine is preferable as component (A).

[0015] Although not particularly limited as long as the effects of the present invention are exhibited, 0.01 to 5.0% by mass (hereinafter, % represents % by mass unless otherwise specified) is preferable with respect to the entire skin cosmetic, and more preferably 0.1 to 3.0%. If it is 0.01% or more, a moisturizing effect can be obtained, and if it is 5.0% or less, there will be no feeling of roughness on the skin and a sufficient moisturizing effect can be obtained.

[0016] <(B) Strawberry extract> (Component (B) is a strawberry extract. Strawberry (scientific name: Rubus idaeus) is a genus of the Rosaceae family and is a plant that has been used for food and beverages since ancient times. The strawberry extract contained in the skin cosmetic according to this embodiment can be obtained by extracting from the leaves, fruits, and seeds of strawberries using water, hot water, alcohol, polyol, or a mixed solution thereof, and commercially available products for the purpose of blending into cosmetics can be used.

[0017] In the skin cosmetic according to this embodiment, the component (B) has a moisturizing effect and can greatly reduce the squeaking feeling of the component (A).

[0018] In the skin cosmetic according to this embodiment, the blending amount of the component (B) in the skin cosmetic is preferably 0.0001 to 0.01% in terms of solid content. If the blending amount of the component (B) is 0.0001% or more, the moisturizing effect on the skin and the squeaking feeling of the skin cosmetic can be suppressed. Even if a large amount of the component (A) is blended, the squeaking feeling can be reduced by the component (B). If the blending amount of the component (B) is 0.01% or less, stickiness of the skin cosmetic and coloring due to the extract in the skin cosmetic can be sufficiently suppressed.

[0019] <(C) Lemon extract> (C) component is lemon extract. It is a plant-derived extract, a plant that has been used for food, drinking, and cosmetics for a long time, and is known to contain components having astringent effects such as organic acids such as citric acid. The plant extract having an astringent effect as the component (C) can be obtained by extraction using water, hot water, alcohol, polyol or a mixed solution thereof, and those generally commercially available for the purpose of blending into cosmetics can be used.

[0020] In the skin cosmetic according to this embodiment, the blending amount of the component (C) in the skin cosmetic is preferably 0.0001 to 0.01% in terms of solid content. If the blending amount of the component (C) is 0.0001% or more, it can sufficiently exert the action of tightening the skin and pores and suppressing the stickiness of the skin cosmetic. Even if a large amount of the component (A) is blended, the squeaking feeling can be reduced by the component (C). Also, if the blending amount of the component (C) is 0.01% or less, coloring due to the extract in the skin cosmetic can be sufficiently suppressed.

[0021] <Other components> In addition to the above-described components, the skin cosmetic according to this embodiment may contain other components, such as anionic surfactants, cationic surfactants, amphoteric surfactants, nonionic surfactants, oils, high molecular compounds, thickeners, powders (dyes, resins, pigments), preservatives, fragrances, humectants, physiologically active ingredients, mineral salts, solvents, antioxidants, chelating agents, pearling agents, neutralizing agents, pH adjusters, plant extracts, enzymes, vitamins, amino acids, etc., as long as the object of the present invention is not impaired.

[0022] Furthermore, in the skin cosmetic according to this embodiment, physiologically active ingredients can be appropriately blended as long as the object of the present invention is not impaired. A physiologically active substance is a substance that imparts some physiological activity to the skin when applied to the skin. Examples include whitening agents, anti-inflammatory agents, anti-aging agents, ultraviolet protectants, astringents, antioxidants, blood circulation promoters, antibacterial agents, bactericides, cooling agents, warming agents, wound healing promoters, irritation relievers, analgesics, cell activators, etc.

[0023] The skin cosmetic according to this embodiment can be manufactured according to a conventional method. Also, the skin cosmetic according to this embodiment can be used, for example, as a lotion, emulsion, cream, essence, gel, sheet mask, makeup, body lotion, body gel, body cream, facial cleanser, facial wash foam, body soap, cleansing agent, makeup base, etc. The dosage form can also be arbitrarily selected according to the purpose. That is, liquid, cream, gel, emulsion, sheet, stick, aerosol, etc. are included. The skin cosmetic according to this embodiment is not limited to general skin cosmetics, but includes quasi-drugs, designated quasi-drugs, external medicines, etc.

[0024] In order to maximize the effect of the skin cosmetic according to this embodiment, it is preferably applied as a sheet pack. By applying it as a sheet pack, a larger amount of the skin cosmetic can be applied to the skin for a longer time, and the moisturizing effect on the skin can be further enhanced.

Examples

[0025] Next, the present invention will be described in detail based on examples, but it is not limited thereto. Prior to the examples, the test methods and evaluation methods employed in each example will be described.

[0026] <Evaluation method> For five professional panelists, after performing normal face washing, 3 mL of the skin cosmetic of the example or comparative example was taken in hand and applied to the face to be familiarized and evaluated.

[0027] [1] Moisture feeling evaluation test of the skin (Test method) The skin after familiarizing with the skin cosmetic of the example or comparative example was evaluated according to the following evaluation criteria, and the average value was taken as the test result. <Evaluation criteria> 5: A very strong sense of moisture was felt on the skin after familiarization. 4: A somewhat strong sense of moisture was felt on the skin after familiarization. 3: A very slight sense of moisture was felt on the skin after familiarization. 2: Little sense of moisture was felt on the skin after familiarization. 1: No sense of moisture was felt on the skin after familiarization. <Judgment criteria> ◎: Average value is 4.0 or more 〇: Average value is 3.0 or more and less than 4.0 △: Average value is 2.0 or more and less than 3.0 ×: Average value is less than 2.0

[0028] [2] Evaluation test for the absence of skin tightness (Test method) The skin after familiarizing with the skin cosmetic of the example or comparative example was evaluated according to the following evaluation criteria, and the average value was taken as the test result. <Evaluation criteria> 5: A very strong sense of the absence of skin tightness was felt on the skin after familiarization. 4: A somewhat strong sense of the absence of skin tightness was felt on the skin after familiarization. 3: A very slight sense of the absence of skin tightness was felt on the skin after familiarization. 2: Little sense of the absence of skin tightness was felt on the skin after familiarization. 1: After getting used to it, no sense of squeak was felt on the skin at all. <Judgment Criteria> ◎: The average value is 4.0 or more 〇: The average value is 3.0 or more and less than 4.0 △: The average value is 2.0 or more and less than 3.0 ×: The average value is less than 2.0

[0029] [2] Evaluation test of the non-greasy feeling of the skin (Test method) The skin after applying the skin cosmetic of the example or comparative example was evaluated according to the following evaluation criteria, and the average value was used as the test result. <Evaluation Criteria> 5: A very strong non-greasy feeling was felt on the skin after getting used to it. 4: A slightly non-greasy feeling was felt on the skin after getting used to it. 3: A very slight non-greasy feeling was felt on the skin after getting used to it. 2: Hardly any non-greasy feeling was felt on the skin after getting used to it. 1: No non-greasy feeling was felt on the skin after getting used to it at all. <Judgment Criteria> ◎: The average value is 4.0 or more 〇: The average value is 3.0 or more and less than 4.0 △: The average value is 2.0 or more and less than 3.0 ×: The average value is less than 2.0

[0030] <Examples 1 to 6 and Comparative Examples 1 to 6> The skin cosmetics in the formulations of the examples and comparative examples shown in Tables 1 and 2 were prepared by a conventional method and evaluated by each test method.

[0031]

Table 1

[0032]

Table 2

[0033] As is clear from Tables 1 and 2, all of the skin cosmetics of the examples had excellent performance. On the other hand, in the comparative examples lacking any of the components, they were inferior in any of the aspects of moist feeling, lack of astringency, and lack of stickiness, and the object of the present invention could not be achieved.

[0034] Hereinafter, other formulation examples of the skin cosmetic of the present invention will be given as examples. Regarding the skin cosmetics of these examples, when examined for the above-mentioned moist feeling, lack of astringency, and lack of stickiness, they all had excellent characteristics and were good.

[0035] Example 7 (Sheet pack) (1) Tranexamic acid 1.0% (2) Dipotassium glycyrrhizinate 0.1% (3) Ascorbic acid sulfate 2Na 0.1% (4) Betaine 0.5% (5) Strawberry extract 0.2% (6) Lemon extract 0.1% (7) Sage extract 0.2% (8) Chamomile flower extract 0.1% (9) Aloe vera extract 0.3% (10) Dipropylene glycol 1.5% (11) Glycerin 5.0% (12) 1,3-Butylene glycol 7.0% (13) Propanediol 1.0% (14) Citric acid 0.05% (15) Potassium hydroxide 0.005% (16) Polyoxyethylene hydrogenated castor oil 0.2% (17) Polyoxyethylene monolaurate Sorbitan (20 E.O.) 0.1% (18) HEDTA trisodium 0.01% (19) Disodium edetate 0.005% (20) Sodium pyrosulfite 0.001% (21) Bis(ethoxydiglycol) cyclohexanedicarboxylate 0.3% (22) Carboxyvinyl polymer 0.1% (23) Xanthan gum 0.1% (24) PEG-20 0.9% (25) PEG-75 0.6% (26) Phenoxyethanol 0.2% (27) Methylparaben 0.05% (28) Syzygium cumini sap 0.1% (29) PPG-13 decyltetradeceth-24 0.1% (30) Heparin analogue 0.005% (31) Nicotinamide 0.2% (32) Adenophora triphylla extract 0.05% (33) Retinol palmitate 0.01% (34) Purified water the balance

[0036] (Manufacturing method) (1) to (28) were put into a part of (34) and dispersed with a propeller until uniformly dissolved (Liquid A). (29) to (33) were put into the remaining part of (34) and dispersed with a propeller until uniformly dissolved (Liquid B). Liquid B was added to Liquid A and uniformly dissolved to prepare a beauty liquid for sheet mask. This beauty liquid was impregnated into a cotton non-woven fabric to prepare a sheet mask.

[0037] Example 8 (Milky lotion) (1) Isopropylmethylphenol 0.1% (2) Dipotassium glycyrrhizinate 0.1% (3) Ascorbyl glucoside 0.1% (4) Betaine 0.1% (5) Maltitol 2.0% (6) Strawberry extract 0.3% (7) Lemon extract 0.1% (8) Sage extract 0.2% (9) Chamomile flower extract 0.1% (10) Aloe vera extract 0.1% (11) PEG-75 0.3% (12) Dipropylene Glycol 10.5% (13) Ethanol 3.0% (14) Dimethicone 0.2% (15) PEG-60 Hydrogenated Castor Oil 0.1% (16) Pullulan 0.5% (17) Xanthan Gum 0.05% (18) (Acrylates / Alkyl Acrylate (C10-30)) Copolymer 0.05% (19) Green Tea Extract 0.01% (20) Sodium Hyaluronate 0.001% (21) Monopotassium Phosphate 0.02% (22) Sodium Chondroitin Sulfate 0.1% (23) N-Acetylglucosamine 0.01% (24) Disodium Edetate 0.05% (25) Hydrolyzed Collagen 0.001% (26) Water-Soluble Collagen 0.001% (27) Pentylene Glycol 0.5% (28) Hydroxyacetophenone 0.1% (29) Sodium L-Stearoyl Glutamate 0.2% (30) Phenoxyethanol 0.01% (31) Methylparaben 0.01% (32) Purified Water The balance

[0038] (Production Method) (1) to (12) and (16) to (31) were added to (32) and stirred until uniformly dissolved (Solution A). (13) to (15) were heated to 40°C and then uniformly dispersed (Solution B). Solution B was added to Solution A, and the mixture was stirred and mixed with a propeller until uniform, and then cooled to 30°C to prepare a cloudy lotion.

[0039] Example 9 (Emulsion Skin Care Liquid) (1) 3-O-Ethyl Ascorbic Acid 0.1% (2) Ascorbic acid 2-glucoside 0.1% (3) Ascorbyl glucoside 0.1% (4) Betaine 2.0% (5) Sorbitol 3.0% (6) Strawberry extract 0.05% (7) Sage extract 0.2% (8) Chamomile flower extract 0.1% (9) Lemon extract 0.05% (10) Aloe vera extract 0.05% (11) Nicotinamide 7.0% (12) Cyclohexane-1,4-dicarboxylic acid Bisethoxydiglycol 0.3% (13) PEG / PPG / Polybutylene glycol -8 / 5 / 3 Glycerin 0.2% (14) Polysorbate 20 0.3% (15) Sodium cetyl sulfate 0.2% (16) Sodium stearoyl glutamate 0.2% (17) Carbomer 0.1% (18) Sodium polyacrylate 0.02% (19) Stearic acid 0.2% (20) Monoglyceryl stearate 0.1% (21) Behenyl alcohol 0.1% (22) Mineral oil 0.5% (23) Ceramide II 0.0001% (24) Petrolatum 0.1% (25) Jojoba oil 0.5% (26) Squalane 0.5% (27) Sorbitan isostearate 0.1% (28) Tocopherol acetate 0.1% (29) Human stem cell culture medium 0.001% (30) Fragrance 0.05% (31) Phenoxyethanol 0.6% (32) Methylparaben 0.1% (33) Remaining purified water

[0040] (Preparation method) (1) to (18) were put into (33) and heated to 70°C for uniform dissolution (Solution A). (19) to (28) were heated to 70°C and then uniformly dissolved (Solution B). Solution B was added to Solution A, dispersed with a homomixer until uniform, and then cooled to 50°C (Solution C). (29) to (32) were added to Solution C, further dispersed with a homomixer until uniform, and then cooled to 32°C to prepare an emulsion beauty liquid.

Claims

1. A skin cosmetic characterized by containing the following (A) to (C). (A) One or more humectants selected from the group consisting of betaine, polyhydric alcohol, sodium hyaluronate, and sodium chondroitin sulfate (B) Strawberry extract (C) Lemon extract

2. The skin cosmetic according to Claim 1, wherein the component (A) is betaine.

3. The skin cosmetic according to Claim 1 or 2, which is a sheet pack.

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