JP2015091784A - Composition for suppressing smell of head - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a novel external composition which can suppress the smell of the head effectively.SOLUTION: The invention prepares an external composition for suppressing the smell of the head using at least one kind selected from the group consisting of hydrolysis collagen with a number average molecular weight of 1500 or less and a salt thereof, substantially without a silicone compound. The external composition for suppressing the smell of the head of the invention can suppress adsorption of a smell component to the hair effectively. In a certain aspect, the external composition for suppressing the smell of the head of the invention can suppress adsorption to the hair of at least one kind of the smell component selected from the group consisting of a smell of an aged person and a body smell.

Description

  The present invention relates to an external composition used for suppressing head odor.

  In recent years, people's interest in odor has increased. In general, the body odor is considered to be caused by fatty acids and unsaturated aldehydes made from sebum on the body surface. Similarly, odors called aging odors are also produced by the oxidative degradation of ω-unsaturated fatty acids (palmitoleic acid and vaccenic acid) produced by the decomposition of sebum, generating unsaturated aldehydes called 2-nonenal on the body surface. It is reported that it is deeply related to doing (Non-patent Document 1).

  And so far, many antiperspirant deodorant agents have been marketed in order to suppress odors, and are generally used for armpits and trunks that are easy to sweat. In recent years, not only so-called trunks but also people who are concerned about head odors are increasing.

  Therefore, a hair cosmetic containing a fragrance is sometimes used in order to mask a head odor to be worried about. However, when a hair cosmetic containing such a fragrance is used, the fragrance and the odor of the head odor may be mixed to produce an unpleasant odor. In addition, people who are concerned about head odor may wash too much with shampoo to wash away odorous ingredients, but washing too hard will wash away the normal bacteria that should be present on the skin. It is also unfavorable that it may become loose or cause exfoliation of the stratum corneum.

  Further, as a composition for suppressing the odor of the scalp, (A) an anionic surfactant, (B) an amphoteric surfactant and / or a semipolar surfactant, (C) a specific cationic polymer compound, A shampoo composition (Patent Document 1) containing a combination of (D) polylysine and / or a salt thereof and (E) an organic acid has been proposed. (A) a cationic surfactant, (B) a higher alcohol having a specific carbon number, (C) a specific highly polymerized dimethylpolysiloxane, (D) a water-soluble polymer compound, (E) polylysine and / or a salt thereof, (F) It has been proposed that a hair cosmetic containing a specific organic acid (Patent Document 2) can also be used to suppress the smell of the scalp. However, there is a demand for the development of a new composition for external use useful for suppressing head odor.

JP 2007-153791 A JP 2007-169192 A

S. Haze et al. , The Journal of Investigative Dermatology, Vol. 116, no. 4, 520-524, 2001

  An object of this invention is to provide the useful new composition for external use which can suppress a head odor effectively in view of the said prior art.

  As a result of intensive investigations to solve the above problems, the present inventor uses hydrolyzed collagen having a specific number average molecular weight and / or a salt thereof, and makes an external composition substantially free of a silicone compound. Thus, it has been found that an excellent external composition capable of exhibiting a high head odor suppressing effect can be provided, and the present invention has been completed.

Accordingly, the present invention provides the following.
[Item 1] Externally used for suppressing head odor, containing at least one selected from the group consisting of hydrolyzed collagen having a number average molecular weight of 1500 or less and a salt thereof, and substantially not containing a silicone compound Composition.
CLAIM | ITEM 2 The external composition of claim | item 1 used in order to suppress adsorption | suction of the odor component to hair.
CLAIM | ITEM 3 The external composition of claim | item 1 or 2 used in order to suppress adsorption | suction of the at least 1 sort (s) of odor component selected from the group which consists of an aging odor and body odor to hair.
CLAIM | ITEM 4 The external composition in any one of claim | item 1 -3 used in order to suppress adsorption | suction of the at least 1 sort (s) of odor component selected from the group which consists of unsaturated aldehyde and a fatty acid to hair.
CLAIM | ITEM 5 The composition for external use in any one of claim | item 1-4 used in order to suppress adsorption | suction of nonenal to hair.
[Item 6] Item 1 further contains at least one selected from the group consisting of a cationic polymer, a cationic surfactant, hydrolyzed keratin and a salt thereof, a polyhydric alcohol, a humectant, and an anti-inflammatory agent. The composition for external use in any one of -5.
[Item 7] As at least one selected from the group consisting of a cationic polymer and a cationic surfactant, O- [2-hydroxy-3- (trimethylammonio) propyl] guar gum chloride, O- [2- chloride] Hydroxy-3- (trimethylammonio) propyl] hydroxyethylcellulose, dimethyldiallylammonium chloride / acrylamide copolymer, 2-methacryloyloxyethyl phosphorylcholine / butyl methacrylate copolymer, stearyltrimethylammonium chloride, alkyltrimethylammonium chloride, bromide Item 7. The external composition according to Item 6, wherein at least one selected from the group consisting of stearyltrimethylammonium and cetyltrimethylammonium bromide is used.
[Item 8] The composition for external use according to any one of Items 1 to 7, wherein at least one selected from the group consisting of hydrolyzed collagen having a number average molecular weight of 400 or less and a salt thereof is used.

  INDUSTRIAL APPLICABILITY According to the present invention, a useful novel skin external composition that can exhibit a high head odor suppressing effect is provided. Hydrolyzed collagen used in the present invention is a component that has been used in preparations applied to the skin so far, and is very beneficial in that it can be safely used for the human body.

Hereinafter, the present invention will be described in detail.
It should be understood that the terms used in the present specification are used in the meaning normally used in the art unless otherwise specified.

(1. Composition for external use used to suppress head odor)
The composition for external use for suppressing head odor according to the present invention contains at least one selected from the group consisting of hydrolyzed collagen having a number average molecular weight of 1500 or less and a salt thereof, and substantially does not contain a silicone compound. It is characterized by that.

(Hydrolyzed collagen and / or salt thereof)
The composition for external use for suppressing the head odor of the present invention contains hydrolyzed collagen having a number average molecular weight of 1500 or less and / or a salt thereof (hereinafter collectively referred to as “hydrolyzed collagens”). .

  Collagen is a known protein widely present in skin, cartilage tissue, cornea, heart, liver and the like as a main component constituting a skeletal structure of animal tissue form. As for collagen, a plurality of types of collagen such as type I to XIX have been known so far, but the hydrolyzed collagen used in the present invention may be obtained by hydrolyzing any collagen. Good.

  Hydrolyzed collagen can be obtained by hydrolyzing collagen as described above by any method. For example, collagen is hydrolyzed by a proteolytic enzyme, hydrolyzed with an acid, alkali It can be obtained by hydrolyzing using a method or a method using a combination thereof.

  As an example, the enzyme used to hydrolyze collagen is not particularly limited, but collagenase (for example, collagenase derived from bacteria such as Clostridium histolyticum, Streptomyces parvulus, actinomycetes or fungi, etc. can be used. Or a collagenase obtained by producing these collagenases by other bacteria by using genetic recombination technology), trypsin, chymotrypsin, subtilisin, elastase, proline-specific protease, microorganism of the genus Streptococcus Protease, Papain, Pepsin, Thermolysin, Carboxypeptidase Y, Protease produced by Aspergillus, Streptomyces microorganism Protease produced by Rhizopus genus, protease produced by Rhizopus microorganisms, protease produced by lactic acid bacteria, etc. can be used alone or in combination of two or more. When hydrolyzing using an enzyme, collagenase is preferably used as the enzyme.

  The hydrolyzed collagen blended in the external composition for suppressing head odor according to the present invention has a number average molecular weight of 1500 or less. As shown in the results of test examples described later, when the number average molecular weight of the hydrolyzed collagen is larger than 1500, it is difficult to obtain the effect of suppressing head odor, which is not preferable. The number average molecular weight of the hydrolyzed collagen is not particularly limited as long as the effect of the present invention can be obtained as long as the effect of the present application can be achieved, but is preferably 1300 or less, more preferably 1000 or less, more preferably from the viewpoint that a higher head odor suppressing effect can be exhibited. Preferably it is 700 or less, still more preferably 500 or less, particularly preferably 400 or less. The lower limit of the number average molecular weight of the hydrolyzed collagen is not particularly limited as long as the effects of the present invention can be achieved, but as an example, it is 150 or more, preferably 200 or more, more preferably 300 or more.

The number average molecular weight of hydrolyzed collagen can be measured by any method known to those skilled in the art. In general, the number average molecular weight can be calculated by gel filtration chromatography (GPC) method or calculation of analytical nitrogen value. Examples of the calculation method using the analytical nitrogen value include the average degree of polymerization of hydrolyzed collagen obtained by dividing the total nitrogen content value of hydrolyzed collagen by the amino nitrogen content value, and the abundance ratio of various amino acids by amino acid analysis of collagen. There is a method of deriving the average molecular weight of the constituent amino acids determined from the above and calculating the average molecular weight according to the following formula (I) based on that.
Number average molecular weight = {total nitrogen content × (average molecular weight of constituent amino acids−18)} / amino nitrogen content + 18 Formula (I)

  Here, the “average molecular weight of the constituent amino acids” is a value calculated by deriving the proportion of amino acids by amino acid analysis, and multiplying this by the molecular weight of each amino acid, and summing them. The “total nitrogen amount” can be measured by the first nitrogen determination method of the cosmetic raw material standard general test method or by gas chromatography (GC). The “amino nitrogen amount” can be measured by a formol titration method.

  The salt form of hydrolyzed collagen may be any pharmaceutically or physiologically acceptable salt. For example, salts with inorganic bases [for example, ammonium salts; alkali metals (sodium, potassium, etc.), alkaline earth metals (calcium, magnesium, etc.), salts with metals such as aluminum, etc.]; salts with organic bases (eg, , Methylamine, triethylamine, triethanolamine, morpholine, piperazine, pyrrolidine, salts with organic amines such as tripyridine, picoline, etc.); inorganic acid salts (eg hydrochloride, sulfate, nitrate, hydrobromide, phosphorus Acid salts]; organic acid salts [for example, monocarboxylates (acetate, trifluoroacetate, butyrate, palmitate, stearate, etc.), polyvalent carboxylates (fumarate, maleate) Succinate, malonate, etc.), oxycarboxylate (lactate, tartrate, citrate, etc.), organic sulfonate (methanesulfone) Salt, toluenesulfonate, tosylate, etc.), etc.] or the like include, but are not limited to.

  As the hydrolyzed collagen having a number average molecular weight of 1500 or less and / or a salt thereof used in the present invention, commercially available products can also be suitably used. Examples of commercially available hydrolyzed collagen include Promois W-32, W-32R, W-32U, W32UR, WU-32R, W-42, W42R, W-42KS-12 manufactured by Seiwa Kasei Co., Ltd. , W-42CP, W-42SP, W-42U, etc .; Collagen tripeptide F, M30, M60, M90, HACP-01, HACP-02, HACP-GR, HACP-FL1, HACP- manufactured by Zerais Co., Ltd. U2, HACP-S3, etc .; Collagen peptide 700F manufactured by Nitta Gelatin Co., Ltd .; Marine Collagen Rich 500 manufactured by Nippon Kayaku Food Techno Co., Ltd .; CTP-F (BG) manufactured by Ichimaru Falcos Co., Ltd. Examples include, but are not limited to, CTP (BG) and the like; marine collagen peptides and marine collagen peptide solutions manufactured by Ihara Suisan Co., Ltd.

  In the external composition for suppressing head odor according to the present invention, one of the above hydrolyzed collagens may be blended alone, or two or more may be blended as appropriate.

  The content of hydrolyzed collagens having a number average molecular weight of 1500 or less in the external composition for suppressing head odor according to the present invention is not particularly limited as long as the effects of the present invention can be obtained, but is usually based on the entire composition. 0.001 to 20% by weight, more preferably 0.005 to 10% by weight, still more preferably 0.01 to 5% by weight, and still more preferably about 0.05 to 2% by weight.

  The composition for external use for suppressing the head odor of the present invention is further characterized in that it is a so-called non-silicone type external composition substantially free of a silicone compound. According to the knowledge obtained for the first time by the present inventors' investigation, the hair treated with the silicone compound is very easy to adsorb 2-nonenal, which is an odor component, as shown in the results of test examples described later. It has been found that In other words, since there is a concern that the head odor may be worsened when the composition for external use containing a silicone compound is used, the composition for external use of the present invention used for those who are concerned about head odor substantially contains a silicone compound. It is desirable not to include.

  The silicone compound that is desirably not contained in the external composition for suppressing head odor of the present invention refers to a polymer compound having a siloxane bond as a main skeleton. Such silicone compounds include silicone, cyclic silicone, dimethylpolysiloxane, dimethicone copolyol, methylphenylpolysiloxane, phenyltrimethicone, cyclomethicone, trimethylsilylamodimethicone, stearoxymethylpolysiloxane, simethicone, dimethiconol, aminopropyl dimethicone. , Methyltrimethicone, volatile silicone, amino modified silicone, betaine modified silicone, polyamino modified silicone, polyether modified silicone, polyglycerin modified silicone, alkyl modified silicone, alkoxy modified silicone, alcohol modified silicone, fatty acid modified silicone, carboxyl modified silicone , Epoxy modified silicone, carbinol modified silicone, fluorine modified silicone Acrylic silicone, and silicone-based graft polymer. Among these, it is desirable that dimethylpolysiloxane is not substantially contained.

  In the present specification, the phrase “substantially free of a silicone compound” means that the silicone compound is not contained in such an amount as to inhibit the head odor control effect of hydrolyzed collagens having a specific number average molecular weight according to the present invention. To do. More specifically, the content of the silicone compound in the whole external composition for suppressing head odor of the present invention is usually 1% by weight or less, preferably 0.1% by weight or less, more preferably 0.01%. It means that it is not more than wt%, more preferably not more than 0.001 wt%, still more preferably not more than 0.0001 wt%, and it is particularly preferable that no silicone compound is contained.

  The composition for external use for suppressing head odor of the present invention further comprises hydrolyzed keratin and its salt, polyhydric alcohol, moisturizer, anti-inflammatory agent, cationic surfactant, and / or cationic polymer. It is preferable to include. By including these components, it can be expected that even higher effects of the present invention will be exhibited. Among them, by combining a cationic natural or non-natural polymer compound such as a cationic polymer and / or a cationic surfactant, the odor component (especially unsaturated aldehyde such as Nonenal) of hair is added. The adsorption suppression effect can be enhanced more effectively.

  Hydrolyzed keratin and salts thereof (hereinafter collectively referred to as “hydrolyzed keratins”) that may be blended in the external composition for suppressing head odor according to the present invention are those obtained by hydrolyzing keratin protein. It refers to the resulting degradation product and its salt form. Examples of the method for obtaining hydrolyzed keratin include the same methods as those for hydrolyzed collagen described above. Specifically, a method using a proteolytic enzyme (for example, keratinase), a method using an acid or an alkali. Or a method based on a combination thereof. A salt form similar to the aforementioned hydrolyzed collagen may also be used.

  Further, the number average molecular weight of the hydrolyzed keratins that can be used in the present invention is not particularly limited as long as the effects of the present invention can be achieved, but is generally 10,000 or less, preferably 1500 or less, more preferably 1000 or less, and even more. Preferably it is 700 or less, still more preferably 500 or less, particularly preferably 400 or less. The lower limit of the number average molecular weight of the hydrolyzed keratins is not particularly limited as long as the effects of the present invention can be achieved, but as an example, it is 150 or more, preferably 200 or more, more preferably 300 or more. The number average molecular weight of hydrolyzed keratins can also be measured by the same method as described for hydrolyzed collagen.

  When blending hydrolyzed keratins in the composition for external use of the present invention, the above hydrolyzed keratins may be blended singly or in combination of two or more.

  When the hydrolyzed keratins are blended in the external composition for suppressing head odor according to the present invention, the blending amount is not particularly limited as long as the effects of the present invention are exhibited. 001 to 20% by weight, preferably 0.01 to 5% by weight, more preferably 0.05 to 2% by weight. Further, the ratio of the content of hydrolyzed keratins to the content of hydrolyzed collagens having a number average molecular weight of 1500 or less is not particularly limited. For example, the content of hydrolyzed collagens having a number average molecular weight of 1500 or less is 1 part by weight. On the other hand, the content of hydrolyzed keratins may be 0.00001 to 20000 parts by weight, preferably 0.001 to 1000 parts by weight, more preferably 0.01 to 100 parts by weight.

  The polyhydric alcohol that may be added to the external odor suppressing composition of the present invention is a generic name for compounds containing two or more hydroxyl groups in the molecule, and those having about 2 to 10 carbon atoms are particularly preferred. Used. Examples of such polyhydric alcohols include glycerin, diglycerin, triglycerin, propylene glycol, dipropylene glycol, ethylene glycol, diethylene glycol, isoprene glycol, 1,3-butylene glycol, sorbitol, xylitol, erythritol, mannitol, pentane. Examples include, but are not limited to, diol, hexanediol, octanediol, decanediol, and neopentyl glycol. Glycerin, 1,3-butylene glycol, dipropylene glycol, propylene glycol, and sorbitol are preferable.

  When blending the polyhydric alcohol in the external composition of the present invention, the above polyhydric alcohols may be blended alone or in combination of two or more.

  When the polyhydric alcohol is blended in the external composition for suppressing head odor according to the present invention, the blending amount is not particularly limited as long as the effect of the present invention is exhibited, but as an example, 0.01% with respect to the entire external composition. -30 wt%, preferably 0.1-25 wt%, more preferably 1-20 wt%. Further, the ratio of the content of the polyhydric alcohol to the content of the hydrolyzed collagen having a number average molecular weight of 1500 or less is not particularly limited. For example, the content of the hydrolyzed collagen having a number average molecular weight of 1500 or less is 1 part by weight. On the other hand, the polyhydric alcohol content may be 0.0005 to 30000 parts by weight, preferably 0.01 to 5000 parts by weight, more preferably 0.1 to 500 parts by weight.

  As the moisturizing agent that may be blended in the external odor suppressing composition of the present invention, any component known to have a moisturizing effect on the skin can be used. For example, alanine, serine, leucine, isoleucine, Amino acids such as threonine, glycine, proline, hydroxyproline, glucosamine, theanine, betaine; hyaluronic acid or a hydrolyzate thereof or a salt thereof (for example, sodium hyaluronate, hydrolyzed hyaluronic acid, etc.), acetylated hyaluronic acid or the like Salts (for example, acetylated sodium hyaluronate), cationized hyaluronic acid (for example, hydroxypropyltrimonium hyaluronate), mucopolysaccharides such as chondroitin and heparin; sugar alcohols such as sorbitol; lecithin, hydrogenated lecithin, etc. Phospholipids; lactic acid, Sodium chloride Don carboxylic acid, including but NMF-derived components such as urea, without limitation. Preferred are amino acids and / or mucopolysaccharides, and more preferred are betaine, hyaluronic acid, hydrolyzed hyaluronic acid, acetylated hyaluronic acid, cationized hyaluronic acid, and salts thereof.

  When a moisturizer is blended in the external composition of the present invention, the above moisturizers may be blended singly or in combination of two or more.

  When the humectant is blended in the external composition for suppressing head odor according to the present invention, the blending amount is not particularly limited as long as the effect of the present invention is exhibited, but as an example, 0.0001 to the entire external composition 10 weight%, Preferably it is 0.0005 to 5 weight%, More preferably, 0.001-1 weight% is mentioned. Further, the ratio of the content of the humectant to the content of the hydrolyzed collagen having a number average molecular weight of 1500 or less is not particularly limited. For example, the content of the hydrolyzed collagen having a number average molecular weight of 1500 or less is 1 part by weight. The moisturizing agent content may be 0.000005 to 10000 parts by weight, preferably 0.00005 to 1000 parts by weight, and more preferably 0.0005 to 50 parts by weight.

  As an anti-inflammatory agent that may be blended in the external composition for suppressing head odor according to the present invention, any component known to have anti-inflammatory action on the skin can be used, such as glycyrrhizic acid, glycyrrhetinic acid, Stearyl glycyrrhetinate, allantoin, epsilon aminocaproic acid, salicylic acid, methyl salicylate, glycol salicylate, indomethacin, felbinac, ibuprofen, ibuprofen piconol, ketoprofen, bufexamac, butyl fenfenac, bendazac, piroxicam, suprofen, ufenamart Although these salts etc. are mentioned, it is not limited to these. Preferred are glycyrrhizic acid, glycyrrhetinic acid, stearyl glycyrrhetinate, allantoin, epsilon aminocaproic acid, and salts thereof.

  When the anti-inflammatory agent is blended in the external composition of the present invention, the above-mentioned anti-inflammatory agents may be blended singly or in combination of two or more.

  When the anti-inflammatory agent is blended in the external composition for suppressing head odor according to the present invention, the blending amount is not particularly limited as long as the effect of the present invention is exerted, but as an example, 0.0001 with respect to the entire external composition. -5 wt%, preferably 0.0005-2 wt%, more preferably 0.001-1 wt%. Further, the ratio of the content of the anti-inflammatory agent to the content of the hydrolyzed collagen having a number average molecular weight of 1500 or less is not particularly limited. For example, the content of the hydrolyzed collagen having a number average molecular weight of 1500 or less is 1 part by weight. On the other hand, the content of the anti-inflammatory agent may be 0.000005 to 5000 parts by weight, preferably 0.00005 to 1000 parts by weight, more preferably 0.0005 to 100 parts by weight.

  The cationic surfactant that may be blended in the external odor control composition of the present invention is a general term for surfactants having a cationic hydrophilic group, preferably a quaternary ammonium salt type. Cationic surfactants are used. Examples of such cationic surfactants include stearyl trimethyl ammonium chloride, alkyl trimethyl ammonium chloride, cetyl trimethyl ammonium chloride, behenyl trimethyl ammonium chloride, behenyl dimethyl hydroxyethyl ammonium chloride, stearyl dimethyl benzyl ammonium chloride, distearyl dimethyl chloride. Ammonium, dicetylmethylammonium chloride, cetyltriethylammonium methyl sulfate, stearyltrimethylammonium bromide, and cetyltrimethylammonium bromide can be mentioned, but are not limited thereto. Preferred are stearyl trimethyl ammonium chloride, alkyl trimethyl ammonium chloride, stearyl trimethyl ammonium bromide, and cetyl trimethyl ammonium bromide.

  When the cationic surfactant is blended in the external composition of the present invention, the above cationic surfactants may be blended singly or in combination of two or more.

  When the cationic surfactant is blended in the external composition for suppressing head odor according to the present invention, the blending amount is not particularly limited as long as the effect of the present invention is exhibited, but as an example, it is 0 with respect to the entire external composition. 0.001 to 20% by weight, preferably 0.01 to 10% by weight, and more preferably 0.1 to 5% by weight. Further, the ratio of the content of the cationic surfactant to the content of the hydrolyzed collagen having a number average molecular weight of 1500 or less is not particularly limited. For example, the content of the hydrolyzed collagen having a number average molecular weight of 1500 or less is 1 weight. The cationic surfactant content may be 0.00005 to 20000 parts by weight, preferably 0.001 to 5000 parts by weight, and more preferably 0.01 to 1000 parts by weight with respect to parts. As an example, when the content of hydrolyzed collagen having a number average molecular weight of 1500 or less is 1 part by weight, the content of the cationic surfactant can be 0.1 to 500 parts by weight.

  The cationic polymer that may be blended in the external composition for suppressing head odor according to the present invention is a generic term for polymers that can exhibit cationic properties, and is preferably a polymer having a quaternary amino group as a side chain. Although not particularly limited, the term “cationic polymer” as used herein refers to a concept that excludes a surfactant having a cationic hydrophilic group (in particular, a quaternary ammonium salt type cationic surfactant). You can also. Examples of such cationic polymers include polyquaternium-10, polyquaternium-7, polyquaternium-4, polyquaternium-5, polyquaternium-6, polyquaternium-11, polyquaternium-16, polyquaternium-22, polyquaternium-28, and polyquaternium-32. , Polyquaternium-33, Polyquaternium-37, Polyquaternium-39, Polyquaternium-43, Polyquaternium-44, Polyquaternium-46, Polyquaternium-47, Polyquaternium-49, Polyquaternium-51, Polyquaternium-52, Polyquaternium-53, Polyquaternium-55, Polyquaternium-55 Polyquaterniums such as -57, polyquaternium-61, polyquaternium-64, polyquaternium-65, polyquaternium-68, polyquaternium-92 Chloride O- may be mentioned [2-hydroxy-3- (trimethylammonio) propyl] guar gum, and the like. Preferably, polyquaternium-10 (alias: O- [2-hydroxy-3- (trimethylammonio) propyl] hydroxyethylcellulose chloride), polyquaternium-7 (alias: dimethyldiallylammonium chloride / acrylamide copolymer), polyquaternium-51 (Alternative name: 2-methacryloyloxyethyl phosphorylcholine / butyl methacrylate copolymer), O- [2-hydroxy-3- (trimethylammonio) propyl] guar gum chloride.

  When the cationic polymer is blended in the external composition of the present invention, the above cationic polymers may be blended singly or in combination of two or more.

  When the cationic polymer is blended in the external composition for suppressing head odor according to the present invention, the blending amount is not particularly limited as long as the effect of the present invention is exhibited, but as an example, 0.0001 based on the entire external composition. -10 wt%, preferably 0.001-5 wt%, more preferably 0.01-1 wt%. Further, the ratio of the content of the cationic polymer to the content of the hydrolyzed collagen having a number average molecular weight of 1500 or less is not particularly limited. For example, the content of the hydrolyzed collagen having a number average molecular weight of 1500 or less is 1 part by weight. On the other hand, the content of the cationic polymer may be 0.000005 to 10000 parts by weight, preferably 0.0001 to 1000 parts by weight, more preferably 0.005 to 100 parts by weight. As an example, when the content of hydrolyzed collagen having a number average molecular weight of 1500 or less is 1 part by weight, the content of the cationic polymer can be 0.01 to 50 parts by weight.

The composition for external use for suppressing head odor of the present invention may further contain other components known to have an effect of suppressing unpleasant odor such as body odor in order to further enhance the head odor suppressing effect. Examples of such components include, but are not limited to, porous materials having an odor adsorbing action such as charcoal, mud, bentonite, montmorillonite, and kaolin; Examples include plant extracts such as Koganebana (Ogon), cucumber, salamander, parsley and the like.
The content of the above components can be appropriately selected in consideration of the feeling of use and effects, but is usually about 0.0001 to 20% by weight, preferably about 0.001 to 10% by weight, based on the entire composition. Is good.

  In addition to the above-mentioned components, the composition for suppressing head odor of the present invention adds other useful effects, so that it is derived from plant-derived components (such as herb-derived components), ultraviolet scattering components, ultraviolet absorbing components, Various components such as antibacterial components, antioxidant components, vitamins, minerals, amino acids, hair growth components and hair nourishing components may be used alone or in combination of two or more. These components are not particularly limited as long as they can be used in the fields of pharmaceuticals, quasi drugs, cosmetics, and the like, and arbitrary components can be appropriately selected and used.

  Further, the head odor control composition of the present invention is appropriately blended with components that can be usually used in the field of pharmaceuticals, quasi drugs, cosmetics, etc., in addition to the above components, depending on the use or dosage form. Also good. The components that can be blended are not particularly limited. For example, bases or carriers, surfactants other than cationic surfactants, viscosity modifiers, antioxidants, preservatives, pH adjusters, chelating agents, stabilizers Additives such as irritation reducing agents, preservatives, colorants, dispersants, and fragrances can be blended. In addition, these components can be mix | blended individually by 1 type or in combination of 2 or more types.

  As a base or carrier, water base such as water; liquid paraffin, squalane, petrolatum, gelled hydrocarbon (such as plastibase), ozokerite, α-olefin oligomer, hydrocarbon such as light liquid paraffin; cetanol, cetostearyl Higher alcohols such as alcohol, stearyl alcohol, behenyl alcohol; cellulose derivatives such as ethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methylcellulose; polyvinylpyrrolidone; carrageenan; polyvinyl butyrate; polyethylene glycol; dioxane; butylene glycol adipic acid polyester; isopropyl myristate Octyldodecyl myristate, isopropyl palmitate, cetyl palmitate, isononyl isononanoate, La 2-ethylhexanoic acid pentaerythritol, esters such as jojoba oil; polysaccharides such as dextrin and maltodextrin; lower alcohols such as ethanol and isopropanol; ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol Such as monopropyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monobutyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, dipropylene glycol monoethyl ether, dipropylene glycol monopropyl ether Glycol ethers; and the like.

  Examples of the surfactant other than the cationic surfactant include POE-branched alkyl ethers such as polyoxyethylene (hereinafter referred to as POE) -octyldodecyl alcohol and POE-2-decyltetradecyl alcohol; POE-oleyl alcohol ether And POE-alkyl ethers such as POE-cetyl alcohol ether; sorbitan esters such as sorbitan monooleate, sorbitan monoisostearate and sorbitan monolaurate; POE-sorbitan monooleate, POE-sorbitan monoisostearate, and POE POE-sorbitan esters such as sorbitan monolaurate; glycerol fatty acid esters such as glycerol monooleate, glycerol monostearate, and glycerol monomyristate; POE POE-glycerin fatty acid esters such as glycerin monooleate, POE-glycerin monostearate, and POE-glycerin monomyristate; POE-dihydrocholesterol ester, POE-cured castor oil, POE-cured castor oil isostearate, etc. POE-hardened castor oil fatty acid ester; POE-alkyl aryl ether such as POE-octyl phenyl ether; glycerin alkyl ether such as monoisostearyl glyceryl ether and monomyristyl glyceryl ether; POE-monostearyl glyceryl ether, POE-monomyristyl glyceryl ether POE-glycerin alkyl ether such as diglyceryl monostearate, decaglyceryl decastearate, decaglyceryl decaisostea And other nonionic surfactants such as polyglycerin fatty acid esters such as diglyceryl diisostearate; or naturally occurring surfactants such as lecithin, hydrogenated lecithin, saponin, surfactin sodium, cholesterol, bile acids, etc. An agent etc. can be illustrated.

  As viscosity modifiers, thickeners such as xanthan gum, carboxymethylcellulose, hydroxyethylcellulose, partially crosslinked polyacrylic acid, montmorillonite, hectorite, saponite, vermiculite, nontrite, sauconite, laponite; propylene glycol, ethanol, propanol, isopropanol, ethylene Examples thereof include viscosity reducing agents such as glycol, polyethylene glycol, polypropylene glycol, glycerin, polyglycerin, sorbitol, pentaerythritol, benzenesulfonate, and lower alkylbenzenesulfonate having about 1 to 4 carbon atoms.

  Examples of the antioxidant include dibutylhydroxytoluene, butylhydroxyanisole, sorbic acid, sodium sulfite, ascorbic acid, ascorbic acid derivative, tocopherol, tocopherol derivative, erythorbic acid, L-cysteine hydrochloride and the like.

  Examples of preservatives or preservatives include benzoic acid, sodium benzoate, dehydroacetic acid, sodium dehydroacetate, isobutyl paraoxybenzoate, isopropyl paraoxybenzoate, butyl paraoxybenzoate, ethyl paraoxybenzoate, propyl paraoxybenzoate, paraoxybenzoate Examples thereof include benzyl benzoate, methyl paraoxybenzoate, phenoxyethanol, benzyl alcohol, chlorobutanol, sorbic acid and its salts, chlorhexidine gluconate, alkanediol and the like.

  Examples of pH adjusters include inorganic acids (hydrochloric acid, sulfuric acid, etc.), organic acids (lactic acid, sodium lactate, citric acid, sodium citrate, succinic acid, sodium succinate, etc.), inorganic bases (potassium hydroxide, hydroxide) Sodium), organic bases (triethanolamine, diisopropanolamine, triisopropanolamine, etc.).

  As a chelating agent, for example, as a chelating agent, ethylenediaminetetraacetic acid (edetic acid), ethylenediaminetetraacetic acid salt (sodium salt (sodium edetate: Japanese Pharmacopoeia, EDTA-2Na etc.), potassium salt etc.), phytic acid, Examples include gluconic acid, polyphosphoric acid, and metaphosphoric acid. Of these, sodium edetate is preferable.

Examples of the stabilizer include sodium polyacrylate, dibutylhydroxytoluene, and bitylhydroxyanisole.
Examples of the irritation reducing agent include licorice extract and sodium alginate.

Examples of the fragrances include terpenoids such as menthol, camphor, borneol, geraniol, cineol, anethole, limonene, eugenol. These may be any of d-form, l-form, or dl-form. From the viewpoints of sensory and safety such as refreshing feeling and fragrance, 1-menthol, d-menthol, dl-menthol, d-camphor, dl-camphor , D-borneol and dl-borneol are preferred, and l-menthol is particularly preferred.
The terpenoids can be used in the state of being contained in essential oils, and preferred essential oils include eucalyptus oil, bergamot oil, peppermint oil, cool mint oil, spearmint oil, fennel oil, mint oil, cinnamon oil, rose oil and the like. is there.

  The above additives can be used singly or in combination of two or more.

  The composition for suppressing head odor of the present invention contains at least one selected from the group consisting of hydrolyzed collagen having a number average molecular weight of 1500 or less and a salt thereof, substantially without using a silicone compound, It can be prepared in various forms according to a conventional method by blending further components as necessary. The formulation form can be any dosage form suitable for application to the hair. Specifically, for example, treatment agent, conditioner agent, rinse agent, hair lotion agent, hair liquid agent, hair tonic agent, hair essence agent, hair water agent, hair mist agent, hair spray agent, hair foam agent, hair mousse agent, Examples thereof include a hair gel agent, a grease agent, a pomade agent, a tic agent, a hair cream agent, a hair milk agent, a hair wax agent, a hair oil agent, a hair pack agent, and a shampoo agent. These preparations can be produced by methods conventionally used by those skilled in the art. From the viewpoint of excellent handling and feeling during use, it is preferably an emulsion or cream-like dosage form. In the case of an emulsion or cream-like dosage form, it may be W / O type or O / W type, but O / W type is more preferable.

  The composition for suppressing head odor according to the present invention only needs to have a liquidity of usually pH 2.0 to 13.0, but from the viewpoint of low irritation to the scalp and good usability when applied to the scalp, The pH is preferably 3.0 to 12.0, more preferably pH 4.0 to 11.5, and particularly preferably about pH 5.0 to 11.0.

  The composition for suppressing head odor of the present invention is particularly excellent for the adsorption of unsaturated aldehyde (nonenal), which is one of the causes of body odor and aging odor, as shown in the following test examples. Can exert the inhibitory effect. In addition, the composition of the present invention is a cause of body odor and aging odor, and also for fatty acids (lower fatty acids and higher fatty acids, especially higher fatty acids) which are also precursors of unsaturated aldehydes such as nonenal. However, it can be expected that the suppression effect can be exhibited. Therefore, the head odor control composition of the present invention is suitably used for suppressing the adsorption of odor components to the hair. More preferably, it is used to suppress the adsorption of aging odor and body odor to the hair, and particularly preferably used to suppress the adsorption of unsaturated aldehydes and fatty acids (particularly higher fatty acids) to the hair. obtain. In particular, it is preferably used for suppressing the adsorption of unsaturated aldehyde to the hair.

  Here, the unsaturated aldehyde means an aldehyde having an unsaturated hydrocarbon group, and the hydrocarbon group may be linear or branched. Preferably, the present invention can be suitably used for unsaturated aldehydes having 6 or more carbon atoms, preferably 6 to 18 carbon atoms, more preferably 6 to 10 carbon atoms. Specific examples of such unsaturated aldehydes include, but are not limited to, nonenal, octenal, hexenal, and the like. Preferably, the unsaturated aldehyde is nonenal.

  Further, the higher fatty acid herein means a fatty acid having 6 or more carbon atoms, preferably 6 to 24 carbon atoms, more preferably 6 to 18 carbon atoms. The higher fatty acid may be linear or branched. Further, the higher fatty acid may be saturated or unsaturated, but the present invention is intended for an unsaturated higher fatty acid that is particularly desired to be suppressed because it is easily oxidized and tends to generate a stronger odor. It can be used more suitably. Specific examples of such higher fatty acids include palmitoleic acid, vaccenic acid, oleic acid, linoleic acid, linolenic acid, eleostearic acid, icosadienoic acid, icosatrienoic acid, arachidonic acid, nervonic acid and the like. However, it is not limited to these.

  The composition for suppressing head odor according to the present invention can be used for any person who is concerned about head odor, and is particularly suitable for those who are concerned about body odor or aging odor along with head odor. Body odor and aging odor are generally more common in men who have more sweat secretion than women and who tend to increase sebum secretion due to consumption of tobacco and large amounts of alcohol. Therefore, the composition for suppressing head odor of the present invention is useful for men who are concerned about body odor and aging odor. In addition, the head odor control composition of the present invention is particularly effective for suppressing adsorption of hair such as nonenal, which is considered to be a major cause of aging odor, and therefore the aging odor begins to be a concern 30 It can be suitably used for people in their teens and later, especially those in their 40s and later.

  The composition for suppressing head odor of the present invention can be applied by any means such as coating, dipping, or spraying the hair. The amount to be applied is not particularly limited as long as the effect of the present invention can be exhibited. Depending on the length of the hair, the degree of the desired effect, etc., an appropriate amount (about 0.1 to 10 g) is applied to the entire hair for 1 day. What is necessary is just to apply | coat, immerse or spray etc. with the frequency of about once to several times. Preferably, the odor component is applied to the hair after it has been washed away (that is, after washing with a hair cleanser such as a hair shampoo). Therefore, it is preferable to use the composition for suppressing head odor according to the present invention as a treatment agent, a conditioner agent, a rinse agent or the like that is generally used after washing the hair without much time. In general, treatment agents, conditioner agents, rinse agents, and the like often remain on the hair in a form that penetrates or coats the hair, even if rinsed after application. Therefore, it can be expected that the composition for suppressing head odor of the present invention remaining in the hair in such a manner can exhibit the head odor suppressing effect for a long time after application. In addition, the external composition for suppressing head odor of the present invention may be used in such a manner that when scalp and / or hair is washed, it penetrates into hair while washing or coats hair while washing. it can. Therefore, the head odor control composition of the present invention may be used in the form of a hair cleanser such as a hair shampoo.

(2. Head odor control method)
As described above, it has been confirmed that the head odor can be effectively suppressed by using an external composition containing hydrolyzed collagens having a specific number average molecular weight substantially free of a silicone compound.
Accordingly, the present invention provides a composition for external use containing at least one selected from the group consisting of hydrolyzed collagen having a number average molecular weight of 1500 or less and a salt thereof, and substantially free of a silicone compound, from another viewpoint. There is provided a method for suppressing head odor, including a step of applying to hair.
In the above method, the type of hydrolyzed collagen and the blending ratio thereof, the type of silicone compound that is substantially not contained, the types of other components that can be blended, the blending ratio, the mode of application, etc. 1. The same as described in “External composition used for suppressing head odor”.

(3. Use for the manufacture of a composition for suppressing head odor)
As described above, by preparing an external composition containing hydrolyzed collagens having a specific number average molecular weight substantially free of a silicone compound, it is possible to provide an external composition excellent in head odor suppression effect. It has been confirmed.
Therefore, the present invention is at least one selected from the group consisting of hydrolyzed collagen having a number average molecular weight of 1500 or less and a salt thereof for the manufacture of a composition for external use used for suppressing head odor, from another viewpoint. Use of seeds wherein the topical composition is substantially free of silicone compounds.
In the above use, the type of hydrolyzed collagen and the blending ratio thereof, the type of silicone compound that is substantially not contained, the types of other components that can be blended, the blending ratio thereof, the mode of application, etc. are described above. 1. The same as described in “External composition used for suppressing head odor”.

  EXAMPLES The present invention will be described in detail below based on examples, but the present invention is not limited to these examples.

<Test Example 1: Evaluation of Adsorption of Nonenal to Hair>
In this test example, the amount of Nonenal adsorbed on three types of hair, normal hair, damage-treated hair, and silicone compound-treated hair was evaluated.
First, about 0.9 g of human hair bundle was rubbed 10 times with sandpaper, and this was treated as damaged hair. Separately, about 0.9 g of normal human hair bundle that was not treated with sandpaper was immersed in 10 ml of dimethylpolysiloxane for 10 minutes, then dried with a dryer, and a silicone compound coated with a silicone compound Treated hair was prepared. Furthermore, about 0.9 g of human hair bundle that was not subjected to damage treatment or silicone compound treatment was prepared, and this was used as normal hair. These three types of hair are observed with a microscope (VHX-1000, manufactured by Keyence Corporation), and the cuticle of damaged hair is peeled off, and the cuticle is normal for normal hair and silicone compound-treated hair. It was confirmed.

  Next, prepare a 1 L beaker to which 1 mL of a 1% (w / w) trans-2-nonenal solution dissolved in ethanol was added, and each of the 3 types of hair prepared as described above was suspended and sealed, and then at room temperature. And left for 8 hours. Thereafter, each hair taken out from the flask was transferred into about 100 mL of chloroform, and stirred for 30 minutes for extraction. Next, the hair was removed and the chloroform solution was removed under reduced pressure using an evaporator, and 1 g of ethanol was added to prepare each hair extract. About each obtained extract, the amount of trans-2-nonenal was quantified by the gas chromatography (GC) measurement on the following measurement conditions.

(GC measurement conditions)
・ Model: GC14B (manufactured by Shimadzu Corporation)
Column: HP-INNOwax 30 m × 0.25 mmφ × 0.25 μm (manufactured by Agilent Technologies)
Carrier gas: He, pressure: 100 kPa, total flow rate: 16 ml / min
・ Split ratio 10: 1
Temperature conditions: 60 ° C. (1 min hold) → Temperature rise (20 ° C./min)→200° C. (3 min hold) → Temperature rise (20 ° C./min)→250° C. (3 min hold), 16.5 min
・ Inlet: 250 ° C., Detector: 250 ° C. (FID)
・ Injection volume: 1 μl

The measurement results are shown in Table 1 below.

  As shown in the results of Table 1 above, nonenal is adsorbed not a little even in normal hair. However, the damage-treated hair has a nonenal adsorption amount that is one order higher than that of normal hair, indicating that it is easy to adsorb odor components in a large amount. In addition, when treated with a silicone compound that is often blended into hair compositions with the expectation of smoothing the finger of the hair, the amount of nonenal adsorbed is much higher than that of damaged hair. It was revealed that there is a problem that the odor component is very easily adsorbed. Therefore, it has been clarified that it is preferable that a silicone compound is not substantially blended in a head odor control composition intended for use by people who are concerned about head odor.

<Test Example 2: Evaluation of Adsorption of Nonenal to Various Treated Hairs 1>
Each test solution shown in Table 2 below was prepared and evaluated for the effect of inhibiting trans-2-nonenal adsorption on the hair.

First, about 0.9 g of human hair bundle (normal hair) was immersed in 10 mL of various test solutions (Examples 1-2 and Comparative Examples 1-7) for 10 minutes, and then taken out and dried with a dryer. Separately, as a control, a human hair bundle that was similarly dipped and dried using a solution containing only the base (ethanol) was also prepared. Next, prepare a 500 mL Erlenmeyer flask containing 1 mL of Nonal solution containing 1% (w / w) trans-2-nonenal in ethanol, and hang the hair treated with various test solutions or control-treated hair. Then, it was left still at room temperature for 2 hours. Thereafter, each hair taken out from the flask was transferred into about 100 mL of chloroform, and stirred for 30 minutes for extraction. Next, the hair was removed and the chloroform solution was removed under reduced pressure using an evaporator, and 1 g of ethanol was added to prepare each hair extract. About each obtained extract, GC measurement was performed on the same measurement conditions as the said Test example 1, and the amount of trans-2-nonenal which adsorb | sucked and remained to each hair was quantified. Next, the trans-2-nonenal adsorption inhibition rate (%) was calculated according to the following formula (II).
Trans-2-nonenal adsorption inhibition rate (%) = {(nonenal amount of control-treated hair−nonenal amount of each test solution-treated hair) / nonenal amount of control-treated hair} × 100 Formula (II)

  The test results are also shown in the bottom column of Table 2 above. As is clear from the above results, even when hydrolyzed collagen was treated with a number average molecular weight exceeding 1500 (Comparative Example 1), the effect of inhibiting adsorption of nonenal to hair was not recognized. In addition, when a hydrolyzate of a protein other than collagen was used, even if the number average molecular weight was 1500 or less, a tendency to warp and increase the absorbed amount of Nonenal was confirmed (Comparative Examples 2-3). . Furthermore, even when hydrolyzed collagen or hydrolyzed silk protein was further derivatized with a fatty acid or the like, the effect of inhibiting nonnal adsorption was hardly recognized (Comparative Examples 4 to 5). Moreover, when it processed with the silicone compound, the amount of nonenal adsorption | suction was increased significantly similarly to the result of the said test example 1 (comparative example 6). In addition, when the hydrophilic component glycerin or the like was used, almost none of the nonenal adsorption suppressing effect was observed (Comparative Example 7). On the other hand, unexpectedly, in Examples 1 and 2 treated with hydrolyzed collagen having a number average molecular weight of 1500 or less, a high nonenal adsorption suppression effect was exhibited. In particular, in Example 1 using hydrolyzed collagen having a number average molecular weight of 400, it was revealed that an extremely high nonenal adsorption suppressing effect was obtained. From the above results, the composition for external use of the present invention containing hydrolyzed collagens having a specific number average molecular weight can effectively suppress the adsorption of odorous components to the hair, and is an excellent composition for suppressing head odor. It can be seen that it can be used.

<Test Example 3: Nonenal adsorption amount evaluation 2 on various treated hairs>
Each test solution shown in Table 3 below was prepared and further evaluated for the effect of inhibiting trans-2-nonenal adsorption on the hair.

  First, about 0.9 g of human hair bundle (normal hair) was immersed in 10 mL of various test solutions (Example 3 and Comparative Examples 8 to 10) for 10 minutes, and then taken out and dried with a dryer. Next, prepare a 500 mL Erlenmeyer flask containing 1 mL of 1% (w / w) trans-2-nonenal in ethanol and add 1 mL of nonenal solution. Let stand for 2 hours. Thereafter, each hair taken out from the flask was transferred into about 100 mL of chloroform, and stirred for 30 minutes for extraction. Next, the hair was removed and the chloroform solution was removed under reduced pressure using an evaporator, and 1 g of ethanol was added to prepare each hair extract. About each obtained extract, GC measurement was performed on the same measurement conditions as the said Test example 1, and the amount of trans-2-nonenal which adsorb | sucked and remained to each hair was quantified.

  The test results are also shown in the bottom column of Table 3 above. As is clear from the above results, when hydrolyzed collagens having a specific number average molecular weight according to the present invention were used (Example 3), when treated with a test solution containing various single amino acids (Comparative Example) It was clarified that a significantly higher nonenal adsorption suppressing effect was obtained than in 8-10). Therefore, it turns out that the outstanding head odor suppression effect is acquired by using the composition for external use of this invention.

<Test Example 4: Evaluation of Adsorption of Nonenal to Various Treated Hairs 3>
Various test solutions shown in Table 4 below were prepared, and further evaluation was performed on the effect of suppressing trans-nonenal adsorption on the hair.

  First, about 0.9 g of human hair bundle (normal hair) was immersed in 10 mL of various test solutions (Examples 4 to 7 and Comparative Example 11) for 10 minutes, and then taken out and dried with a dryer. Next, a 500 mL Erlenmeyer flask containing 1 mL of a nonenal solution in which 0.5% (w / w) trans-2-nonenal was dissolved in ethanol was prepared, and each hair treated with various test solutions was suspended and sealed, and then sealed at 40 ° C. Left for 10 minutes. Thereafter, each hair taken out from the flask was transferred into about 100 mL of chloroform, and stirred for 30 minutes for extraction. Next, the hair was removed, the chloroform solution was removed under reduced pressure by an evaporator, and 1 g of ethanol was added to prepare each hair extract. About each obtained extract, GC measurement was performed under the following measurement conditions, and the amount of trans-2-nonenal adsorbed and remaining on each hair was quantified.

(GC measurement conditions)
・ Model: GC-2010plus (Shimadzu Corporation)
・ Column: HP-INNOwax 30m × 0.25mmφ × 0.25μm (Agilent Technologies)
・ Carrier gas: He, Pressure: 107.6kPa, Total flow rate: 10.9ml / min
・ Split ratio 5: 1
・ Temperature conditions: 60 ℃ → Temperature increase (10 ℃ / min) → 150 ℃ → Temperature increase (20 ℃ / min) → 200 ℃ (12min hold), 23.5min
・ Inlet: 250 ℃, Detector: 250 ℃ (FID)
・ Injection volume: 1μl

  About the case where it processed with each test liquid, the average value of trans-2-nonenal adsorption amount was computed, respectively. The results are also shown in the bottom column of Table 4 above. The content of hydrolyzed collagen having a number average molecular weight of 1500 or less used in this test example was only 1/10 of the amount used in Test Examples 2 and 3, but Comparative Example 11 treated only with purified water. It can be seen that it exhibits a higher inhibition effect of nonenal adsorption than Further, when a cationic polymer (Examples 5 and 6) or a cationic surfactant (Example 7) is further used in combination with hydrolyzed collagen having a number average molecular weight of 1500 or less, further inhibition of nonenal adsorption is achieved. It was confirmed that the effect can be exhibited.

  Hereinafter, formulation examples of the present invention will be shown.

<Prescription Formulation Example 1: Hair Conditioner>
Hydrolyzed collagen (number average molecular weight 400) 0.5% by weight
Hydrolyzed keratin (number average molecular weight 400) 0.5% by weight
Glycerin 5% by weight
Hyaluronic acid 0.1% by weight
Dipotassium glycyrrhizinate 0.1% by weight
Squalane 1% by weight
Stearyltrimethylammonium chloride 4% by weight
Polyquaternium-10 0.5% by weight
Cetanol 2% by weight
POE-monostearyl glyceryl ether 1% by weight
Dibutylhydroxytoluene 0.01% by weight
Phenoxyethanol 0.3% by weight
EDTA-2Na 0.05 wt%
l-Menthol 0.2% by weight
Fragrance 0.3% by weight
Water balance
Total 100% by weight

<Prescription Formulation Example 2: Hair Treatment>
Hydrolyzed collagen (number average molecular weight 400) 0.8% by weight
Hydrolyzed keratin (number average molecular weight 350) 0.2% by weight
5% by weight of propylene glycol
Acetylated hyaluronic acid 0.01% by weight
Allantoin 0.3% by weight
Tetra 2-ethylhexanoic acid pentaerythritol 1% by weight
Cetyltrimethylammonium bromide 2.5% by weight
Polyquaternium-7 0.1% by weight
2% by weight of cetostearyl alcohol
Stearyl alcohol 2% by weight
POE-hardened castor oil 1% by weight
Dibutylhydroxytoluene 0.01% by weight
Methyl paraoxybenzoate 0.3% by weight
EDTA-2Na 0.05 wt%
Fragrance 0.3% by weight
Water balance
Total 100% by weight

<Formulation formulation example 3: hair essence>
Hydrolyzed collagen (number average molecular weight 400) 2% by weight
Butylene glycol 5% by weight
Hydrolyzed hyaluronic acid 0.1% by weight
Epsilon aminocaproic acid 0.05% by weight
Alkyltrimethylammonium chloride 0.7% by weight
O- [2-hydroxy-3- (trimethylammonio) propyl] guar gum 0.5% by weight
Diethylene glycol monoethyl ether 2% by weight
POE-sorbitan monoisostearate 0.8% by weight
Ethanol 20% by weight
Phenoxyethanol 0.3% by weight
Fragrance 0.3% by weight
Water balance
Total 100% by weight

<Prescription Formulation Example 4: Hair Mist>
Hydrolyzed collagen (number average molecular weight 300) 1% by weight
Butylene glycol 5% by weight
Hydrolyzed hyaluronic acid 0.1% by weight
Dipotassium glycyrrhizinate 0.05% by weight
Polyquaternium-51 0.5% by weight
Liquid paraffin 0.5% by weight
Monoisostearyl glyceryl ether 1% by weight
30% ethanol
Propyl paraoxybenzoate 0.3% by weight
Fragrance 0.3% by weight
Water balance
Total 100% by weight

Claims (8)

  A composition for external use used for suppressing head odor, containing at least one selected from the group consisting of hydrolyzed collagen having a number average molecular weight of 1500 or less and a salt thereof, and substantially free of a silicone compound.   The external composition of Claim 1 used in order to suppress adsorption | suction of the odor component to hair.   The external composition of Claim 1 or 2 used in order to suppress adsorption | suction of the at least 1 sort (s) of odor component selected from the group which consists of an aging odor and body odor to hair.   The external composition in any one of Claims 1-3 used in order to suppress adsorption | suction of the at least 1 sort (s) of odor component selected from the group which consists of unsaturated aldehyde and a fatty acid to hair.   The composition for external use in any one of Claims 1-4 used in order to suppress adsorption | suction of nonenal to hair.   Furthermore, it contains at least one selected from the group consisting of a cationic polymer, a cationic surfactant, hydrolyzed keratin and a salt thereof, a polyhydric alcohol, a moisturizing agent, and an anti-inflammatory agent. The external composition in any one.   As at least one selected from the group consisting of a cationic polymer and a cationic surfactant, O- [2-hydroxy-3- (trimethylammonio) propyl] guar gum chloride, O- [2-hydroxy-3-chloride] (Trimethylammonio) propyl] hydroxyethylcellulose, dimethyldiallylammonium chloride / acrylamide copolymer, 2-methacryloyloxyethyl phosphorylcholine / butyl methacrylate copolymer, stearyltrimethylammonium chloride, alkyltrimethylammonium chloride, stearyltrimethylammonium bromide, And at least one selected from the group consisting of cetyltrimethylammonium bromide.   The external composition according to any one of claims 1 to 7, wherein at least one selected from the group consisting of hydrolyzed collagen having a number average molecular weight of 400 or less and a salt thereof is used.