Composition for suppressing body odor

Abstract

To provide a body odor inhibitory composition having particularly excellent deodorization effect.SOLUTION: A body odor inhibitory composition contains component (A) a C8-14 aliphatic alcohol.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to a composition for suppressing body odor.

Background Art

[0002] Deodorant cosmetics are used as cosmetics for suppressing stickiness and odor of sebum and sweat and imparting a refreshing feeling. Such deodorant cosmetics contain a bactericidal component such as isopropylmethylphenol and an antiperspirant component such as chlorhydroxyaluminum as active ingredients (Patent Documents 1 to 3).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the conventional deodorant cosmetics have insufficient persistence of antiperspirant and bactericidal effects, usability, especially the persistence of the anti-odor effect, and further improvement of the anti-odor effect has been demanded. Therefore, an object of the present invention is to provide a composition for suppressing body odor having good usability and particularly excellent anti-odor effect.

Means for Solving the Problems

[0006] In other words, the present invention provides a body odor suppression composition containing component (A) an aliphatic alcohol having 8 to 14 carbon atoms. [Effects of the Invention]

[0007] The body odor-suppressing composition of the present invention controls the degree of metabolism of branched fatty acids within the skin's resident bacteria, thereby achieving a particularly excellent deodorizing effect. Therefore, the body odor-suppressing composition of the present invention is particularly useful as a deodorant cosmetic with a pleasant feel. [Modes for carrying out the invention]

[0008] Component (A) of the present invention is an aliphatic alcohol having 8 to 14 carbon atoms. Specific examples of component (A) include those represented by the following general formula (1).

[0009] R 1 -CH2-OH (1)

[0010] (In the above general formula (1), R 1 (This represents a linear alkyl group with 7 to 13 carbon atoms.)

[0011] Specific examples of component (A) include one or more compounds selected from 1-octanol, 1-nonanol, 1-decanol, 1-undecanol, 1-dodecanol, 1-tridecanol, and 1-tetradecanol. From the viewpoint of further controlling the metabolism of branched fatty acids within the skin's resident bacteria and obtaining an excellent deodorizing effect, it is preferably one or more compounds selected from 1-octanol, 1-decanol, 1-dodecanol, and 1-tetradecanol, more preferably one or more compounds selected from 1-decanol and 1-dodecanol, and even more preferably 1-dodecanol.

[0012] The content of component (A) is preferably 0.001% by mass or more, more preferably 0.01% by mass or more, even more preferably 0.05% by mass or more, and even more preferably 0.1% by mass or more, in the total amount of the body odor suppressing composition, from the viewpoint of further controlling the metabolism of branched fatty acids within the skin's resident bacteria and obtaining an excellent deodorizing effect, as well as from the viewpoint of the feel when applied to the skin and after application. Furthermore, from the viewpoint of obtaining an excellent deodorizing effect and from the viewpoint of the feel when applied to the skin and after application, it is preferably 15% by mass or less, more preferably 10% by mass or less, even more preferably 2% by mass or less, and even more preferably 1% by mass or less. The preferred content range of component (A) is preferably 0.001% by mass or more and 15% by mass or less, more preferably 0.01% by mass or more and 10% by mass or less, even more preferably 0.05% by mass or more and 2% by mass or less, and even more preferably 0.1% by mass or more and 1% by mass or less.

[0013] From the viewpoint of obtaining an excellent deodorizing effect, the body odor suppression composition of the present invention preferably further contains component (B) a bactericidal component and / or component (C) an antiperspirant component.

[0014] The bactericidal components of the present invention (B) include isopropylmethylphenol, benzalkonium chloride, triclosan, piroctone olamine, benzethonium chloride, alkyltrimethylammonium chloride, cetyltrimethylammonium bromide, triclocarban, salicylic acid, parabens, chlorhexidine or its salts, lysozyme or its salts, acrinol, ethanol, gluconic acid, alkyldiaminoglycine or its salts, povidone-iodine, potassium iodide, iodine, cresol, photosensitizer 101, and photosensitizer 20. Examples of suitable substances include phenoxyethanol, 1,2-pentanediol, halocarban, 3,4,4-trichlorocarbanilide, triethyl citrate, resorcinol, phenol, sorbic acid, hexachlorophene, silver-supported zeolite, and silver-supported silica. However, from the viewpoint of obtaining excellent deodorizing effects, skin persistence, long-term storage stability, and user experience, isopropylmethylphenol and benzalkonium chloride are preferred, and isopropylmethylphenol is more preferred.

[0015] The preferred content range for component (B) is preferably 0.01% by mass or more, more preferably 0.02% by mass or more, and even more preferably 0.05% by mass or more, from the viewpoint of obtaining excellent deodorizing effect and antibacterial / disinfectant effect, and from the viewpoint of long-term storage stability, preferably 0.3% by mass or less, more preferably 0.15% by mass or less, and even more preferably 0.1% by mass or less. The preferred content range for component (B) is 0.01% by mass or more and 0.3% by mass or less, more preferably 0.02% by mass or more and 0.15% by mass or less, and even more preferably 0.05% by mass or more and 0.1% by mass or less.

[0016] Examples of component (C) of the present invention as an antiperspirant component include aluminum chlorohydrate, zinc oxide, zinc phenolsulfonate, aluminum chloride, potassium aluminum sulfate, aluminum sulfate, aluminum acetate, allantoin aluminum chlorohydrate, aluminum zirconium octachlorhydrate, aluminum zirconium tetrachlorhydrate, aluminum zirconium trichlorhydrate, and zirconium chlorhydrate. However, from the viewpoint of obtaining excellent deodorizing effect and excellent antiperspirant effect, it is preferable to use aluminum chlorohydrate and zinc phenolsulfonate, and more preferable to use aluminum chlorohydrate.

[0017] The preferred content range for component (C) is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, from the viewpoint of obtaining excellent deodorizing effect and excellent antiperspirant effect. Furthermore, from the viewpoint of skin stickiness, it is preferably 40% by mass or less, more preferably 35% by mass or less. The preferred content range for component (C) is 0.01% by mass or more and 40% by mass or less, more preferably 0.1% by mass or more and 35% by mass or less.

[0018] From the viewpoints of reducing the skin pH, expressing the anti-odor effect and the persistence of the anti-odor effect by suppressing bacterial growth, the stability of the cosmetic, and reducing the sticky feeling, the pH of the composition for suppressing body odor of the present invention is preferably 2 or more and 7.5 or less, more preferably 3 or more and 5 or less at 25°C. The pH of the composition for suppressing body odor of the present invention is preferably adjusted by blending a pH adjuster. Further, the pH of the composition for suppressing body odor in the present invention is a measured value (glass electrode measurement method) at 25°C.

[0019] From the viewpoints of the medium of the skin cosmetic, imparting a refreshing feeling, improving quick-drying property, and sterilization, the composition for suppressing body odor of the present invention preferably further contains a component (D) lower alcohol having 2 to 4 carbon atoms.

[0020] As the component (D) lower alcohol having 2 to 4 carbon atoms in the present invention, ethanol is preferable. The content of the lower alcohol having 2 to 4 carbon atoms in the component (D) is preferably 20% by mass or more and 99.9% by mass or less, more preferably 40% by mass or more and 80% by mass or less from the viewpoints of the feeling of use and imparting a refreshing feeling.

[0021] In addition to the above components, the composition for suppressing body odor of the present invention may contain polyhydric alcohols such as 1,3-butylene glycol, surfactants, powders, oils and fats, waxes, silicones, hydrocarbon oils, higher fatty acids, higher alcohols other than component (A), synthetic ester oils, polymer compounds, antioxidants, pigments, emulsion stabilizers, pH adjusters such as citric acid, succinic acid, adipic acid and their salts, astringents, preservatives, ultraviolet absorbers, chelating agents, humectants, thickeners, cooling agents, anti-inflammatory agents, amino acids, vitamin agents, various plant extracts, water, etc.

[0022] The composition for suppressing body odor of the present invention is useful as a skin cosmetic (including the scalp), and particularly useful as a deodorant cosmetic.

[0023] The dosage form of the body odor suppressing composition of the present invention is not particularly limited, but examples include cream, roll-on type, mist, lotion, aerosol, spray, stick, emulsion, gel, sheet impregnated with nonwoven fabric, etc. However, a cream, roll-on type, spray type, mist, or lotion form is more preferable from the viewpoint of obtaining excellent deodorizing effect and from the viewpoint of the feel when applied to the skin and after application.

[0024] As the body odor-suppressing composition of the present invention can be used in various forms as described above, it can be manufactured by adding components (A) to (D) and other components, mixing them, heating them as necessary, and filling them into containers suitable for various forms. [Examples]

[0025] Next, the present invention will be described in more detail with reference to examples. In the examples, % means mass%.

[0026] Examples 1-26 and Comparative Examples 1-6 The deodorant cosmetics listed in Tables 1-3 were manufactured and their deodorizing effects were evaluated. The results are shown in Tables 1-3. (Manufacturing method) At room temperature (25°C), components (A) or (A'), (B), (C), (D) and purified water were uniformly mixed and stirred, and the pH was adjusted to a predetermined level with citric acid to obtain a deodorant cosmetic.

[0027] (Evaluation of deodorizing effect) The armpits of 10 subjects were wiped with ethanol-soaked cotton, dried, and then 1 g of each sample was applied. Six hours after the start of application, each subject wiped their armpit 10 times back and forth with cotton. Three expert evaluators then performed a sensory evaluation of the deodorizing effect based on the following criteria, and the result was determined by the average score. <Evaluation Criteria> Deodorizing effect 4: Very effective at preventing odors 3: High odor-blocking effect 2: Slightly higher odor-blocking effect 1: Low odor-blocking effect

[0028] (Evaluation of user experience) Five expert panelists will analyze each sample at a rate of 10 μL / cm³. 2 The product was applied to the skin, and the skin's feel during and after application was evaluated sensorily. Scores were calculated according to the following criteria, and the average score was used for evaluation. <Evaluation Criteria> skin feel 4: Very good 3: Good 2: Not very good 1: Bad

[0029] (Evaluation of stickiness) Five expert panelists will analyze each sample at a rate of 10 μL / cm³. 2 The product was applied to the skin, and the stickiness after application was evaluated sensorily. Scores were calculated according to the following criteria, and the average score was used for evaluation. <Evaluation Criteria> Stickiness 4: Non-sticky 3: Not very sticky 2: Slightly sticky 1: Sticky

[0030] (Evaluation of antiperspirant effect) Five expert panelists applied 1g of each sample to the armpit under conditions of 38°C and 40% RH, and evaluated the antiperspirant effect after 30 minutes. Scores were calculated according to the following criteria, and the average score was used for evaluation. <Evaluation Criteria> Antiperspirant effect 4: Very high 3: High 2: Slightly low 1: Low

[0031] [Table 1]

[0032] [Table 2]

[0033] [Table 3]

[0034] Next, an example of the formulation of the body odor suppression composition of the present invention is shown. The resulting body odor suppression composition has a high deodorizing effect and excellent usability.

[0035] Prescription example: Roll-on (Component) (mass%) Isopropylmethylphenol 0.1 Chlorohydroxyaluminum 10.0 1-Dodecanol 0.05 1-Decanol 0.05 1,3-Butylene glycol 2.0 Hydroxypropylcellulose 0.4 Isostearyl glyceryl ether 0.1 Methylpolysiloxane 1.0 N-propionyl polyethyleneimine / methylpolysiloxane copolymer solution (30%) 1.0 succinic acid 0.7 Ethanol 75.0 Fragrance 0.1 Purified water balance Total 100.00

[0036] Example formulation: Lotion / Mist (Component) (mass%) Isopropylmethylphenol 0.1 Chlorohydroxyaluminum 2.0 1-Dodecanol 0.1 1,3-Butylene glycol 2.0 Isostearyl glyceryl ether 0.02 Polyoxyethylene methylpolysiloxane copolymer 0.01 Polyoxyethylene lauryl ether (6E.O.) 0.1 Polyoxyethylene polyoxypropylene decyltetradecyl ether 0.1 Polyoxyethylene sorbitan monooleate (20 E.O.) 0.1 Neopentyl glycol dicaprate 0.05 Menthol 0.1 Citric acid 0.2 Adipic acid 0.1 Ethanol 65.0 Fragrance 0.1 Purified water balance Total 100.00

[0037] Example prescription: Gel (Component) (mass%) Isopropylmethylphenol 0.1 Chlorohydroxyaluminum 20.0 1-Dodecanol 0.1 1,3-Butylene glycol 2.0 Carboxyvinyl polymer 0.5 N-propionyl polyethyleneimine / methylpolysiloxane copolymer solution (30%) 2.0 succinic acid 0.1 Potassium hydroxide 0.15 Ethanol 30.0 Fragrance 0.1 Purified water balance Total 100.00

[0038] Example prescription: Cream (Component) (mass%) Isopropylmethylphenol 0.1 Chlorohydroxyaluminum 25.0 1-Dodecanol 0.05 1,3-Butylene glycol 2.0 Polyoxyethylene methylpolysiloxane copolymer 2.0 Dimethylsiloxane-methyl(undecylglyceryl ether)siloxane copolymer 1.0 Isostearyl glyceryl ether 0.01 Dibutylhydroxytoluene 0.03 Natural Vitamin E 0.1 Methylpolysiloxane 15.0 Neopentyl glycol dicaprate 3.0 Phellodendron bark extract 0.1 Dimethylstearylpolysiloxane 0.1 Ceresin 0.8 High melting point paraffin (1) 1.7 Methylsiloxane network polymer 10.0 Porous silica 5.0 Citric acid 0.2 Adipic acid 0.1 succinic acid 0.7 Polyoxyethylene lauryl ether (6E.O.) 0.01 N-propionyl polyethyleneimine / methylpolysiloxane copolymer solution (30%) 5.0 Polypropylene glycol 0.01 l-Menthol 0.15 Methyl parahydroxybenzoate 0.2 Ethanol 1.5 Fragrance 0.2 Purified water balance Total 100.00

[0039] Example prescription: lotion (Component) (mass%) Isopropylmethylphenol 0.1 1-Dodecanol 0.05 1,3-Butylene glycol 2.0 Isostearyl glyceryl ether 0.01 Cetanol 0.1 Stearyl alcohol 0.05 Isostearic acid 1.0 Isononyl isononanoate 0.5 Isopropyl palmitate 0.5 Alkyl-1,3-dimethylbutyl ether 0.5 Liquid paraffin 1.0 Methylpolysiloxane 2.0 Evening primrose oil 0.01 Lavender oil 0.01 Jojoba oil 0.01 Phellodendron bark extract 0.1 Acrylic acid / alkyl methacrylate copolymer 0.2 Potassium hydroxide 0.05 Citric acid 0.1 Adipic acid 0.1 Polyoxyethylene lauryl ether (6E.O.) 0.01 Polyoxyethylene polyoxypropylene decyltetradecyl ether 0.1 Polyoxyethylene sorbitan monooleate (20 E.O.) 0.2 Polypropylene glycol 0.01 l-menthol 0.2 L-Menthyl lactate 0.01 Methyl parahydroxybenzoate 0.2 Ethanol 5.0 Fragrance 0.2 Purified water balance Total 100.00

[0040] Prescription example: Sheet Dissolve 4g of the liquid composition with the following composition in 2g of 100% cotton nonwoven fabric (basis weight 50g / m²). 2 The sheet-like cosmetic was manufactured by impregnating the material with a spray. The impregnation rate of the liquid composition per 100 parts by mass of the sheet substrate was 300 parts by mass.

[0041] (Component) (mass%) Isopropylmethylphenol 0.1 1-Dodecanol 0.1 Acrylic acid / alkyl methacrylate copolymer 0.15 Polyoxyethylene hydrogenated castor oil 0.3 Sodium carbonate (anhydrous) 0.02 Methylparaben 0.3 Ethanol 42.0 Fragrance 0.1 Purified water balance Total 100.00

Claims

1. (A) A body odor suppression composition containing 1-dodecanol as an active ingredient, (A) 1-dodecanol, 0.05% by amount or more and 10% by mass or less. (C) Chlorohydroxyaluminum in an amount of 0.01% by mass or more and 2% by mass or less. (D) Ethanol in an amount of 40% by mass or more and 66.5% by mass or less, (E) A body odor suppression composition containing water in an amount equal to 100% by mass of the total volume.

2. (A) A body odor suppression composition containing 1-dodecanol as an active ingredient, (A) 1-dodecanol in an amount of 0.1% by mass or more and 10% by mass or less. (B) Isopropylmethylphenol in an amount of 0.1% by mass or more and 0.2% by mass or less (D) Ethanol in an amount of 40% by mass or more and 66.5% by mass or less, (E) A body odor suppression composition containing water in an amount equal to 100% by mass of the total volume.

3. (A) A body odor suppression composition containing 1-dodecanol as an active ingredient, (A) 1-dodecanol in an amount of 0.1% by mass or more and 10% by mass or less. (B) Isopropylmethylphenol in an amount of 0.1% by mass or more and 0.2% by mass or less and (C) Chlorohydroxyaluminum in an amount of 0.01% by mass or more and 2% by mass or less. (D) Ethanol in an amount of 40% by mass or more and 66.5% by mass or less, (E) A body odor suppression composition containing water in an amount equal to 100% by mass of the total volume.

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