JP2010248121A - Hair protecting agent, hair cosmetic using the same, hair-treating method, hair-dyeing method, and permanent hair treatment method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve such the problem that the damage of hair can be temporarily concealed by a coating agent such as silicone, but this is not a fundamental solution and may give further damage to hair when it is used for a long time, and thus there is required a hair protecting agent using a naturally occurring component excellent in biocompatibility and environmental suitability as an active component. <P>SOLUTION: The hair protecting agent includes an extract obtained by extracting Brown algae with a solvent including a lower alcohol selected from the group consisting of methanol, ethanol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, isobutyl alcohol, sec-butyl alcohol, and tert-butyl alcohol, and mixtures thereof. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a hair protecting agent and a hair cosmetic, a hair treatment method, a hair dyeing method, and a hair permanent treatment method using the same.

  Hair undergoes various damages due to factors such as ultraviolet rays, drying, hair washing, perm, dyeing, and aging, and gradually loses its suppleness and color. The most easily damaged part of the hair is the epicuticle forming the outermost layer. The epicuticle is a hydrophobic thin film, and when it is damaged, the hydrophilic layer of the hair is exposed and the internal components of the hair are caused to flow out. As a result, the water retention, suppleness and gloss of the hair are impaired. In addition, hair was chemically damaged by the use of permanents, hair coloring agents, etc., and the hair was physically damaged by the use of hair dryers, hair irons, etc., and such chemical and physical damage was received. In hair, keratin proteins, intercellular lipids and oily components are spilled from the inside, and on the damaged hair surface, oils such as lipids spill out and the cuticles are peeled off, especially for permanent and hair coloring agents. Repeated use is said to be bristle-like and the unity tends to deteriorate (see Patent Document 1). Various substances have been proposed as a method for protecting and improving these, and components such as an anionic surfactant, a cationic polymer, and silicone are used.

  The hair damage can be temporarily concealed by the coating agent such as silicone. However, it does not lead to a fundamental solution. Long-term use may cause further damage to the hair. Therefore, conventionally, there is a demand for a hair protecting agent having a natural product-derived component having excellent biological and environmental compatibility as an active ingredient.

  On the other hand, fucoidan obtained from brown algal mozuku is known as an effective natural product-derived component that is excellent in biological and environmental compatibility and is added to pharmaceuticals, health foods and the like (see, for example, Patent Document 2). As the fucoidan, those obtained from mozuku such as Okinawa and the Kingdom of Tonga are well known.

Japanese Patent No. 4065282 Japanese Patent No. 3454894

  Although hair damage can be temporarily concealed by the coating agent such as silicone, it does not lead to a fundamental solution. Moreover, when they are used for a long time, the hair may be further damaged. Therefore, conventionally, there is a demand for a hair protecting agent having a natural product-derived component having excellent biological and environmental compatibility as an active ingredient.

  The present inventors have an extract extracted from brown algae by a specific method, which has high affinity with hair, enhances the effect of permanent treatment and dyeing during hair dyeing, and causes serious damage to the hair that occurs at that time. Fucoidan obtained from brown algal mozuku, known as an effective natural product-derived ingredient added to pharmaceuticals, health foods, etc. By using together, it discovered that the said effect could be improved further and came to complete this invention.

  That is, according to the first aspect of the present invention, brown algae is made of methanol, ethanol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, isobutyl alcohol, sec-butyl alcohol, and tert-butyl alcohol, and mixtures thereof. A hair protecting agent comprising an extract obtained by extraction using a solvent containing a lower alcohol selected from the group. Conventionally, it has not been known at all that the extract has an effect of protecting hair damage as described above, and stability and retention of coloring during dyeing.

  In a preferred embodiment, the extract is dried and powdered and dissolved in water to obtain a hair protecting agent.

  As the lower alcohol used in the present invention, ethanol is preferably used.

  As the brown algae, at least one kind of algae selected from algae belonging to the family of Chronariaceae, Chronariaceae, and Spermatochaceae of the brown algae plant (Phaeophyceas) can be used.

  In a preferred embodiment, mozuku is used as the brown algae.

  The second of the present invention is a hair protecting agent comprising two agents, a hair protecting agent containing fucoidan and the hair protecting agent of the present invention comprising the above extract.

  According to a third aspect of the present invention, there is provided a hair protecting agent comprising three agents: a hair protecting agent comprising fucoidan, the hair protecting agent of the present invention comprising the above extract, and the hair protecting agent of the present invention comprising the above extract. It is.

  4th of this invention is the hair protecting agent formed by mixing the hair protecting agent containing a fucoidan and the hair protecting agent of this invention which consists of the said extract.

  5th of this invention is the hair cosmetics which use the hair protecting agent of this invention which consists of said extract as an active ingredient.

  6th of this invention is the hair cosmetics which use the hair protecting agent containing a fucoidan and the hair protecting agent of this invention which consists of the said extract as an active ingredient.

  7th of this invention is the hair processing method which uses the hair protecting agent or hair cosmetics of the said invention.

  As a preferred embodiment of the hair treatment method, a first liquid containing a hair protecting agent containing fucoidan and a second liquid containing the hair protecting agent of the present invention comprising the extract are used.

  Moreover, as preferable embodiment of the said hair processing method, the 1st liquid containing the hair protecting agent containing a fucoidan, the 2nd liquid containing the hair protecting agent of this invention which consists of the said extract, and this book which consists of the said extract The third liquid containing the hair protecting agent of the invention is used.

  Moreover, as a preferable embodiment of the hair treatment method, the first liquid contains a hair protecting agent containing alkaline water and fucoidan.

  Moreover, as a preferable embodiment of the hair treatment method, the second liquid and / or the third liquid include acidic water and the hair protecting agent according to any one of claims 1 to 8.

  The hair treatment method of the present invention is preferably applied during hair dyeing.

  In addition, the hair treatment method of the present invention is preferably performed during the permanent treatment.

  By using the hair protecting agent and hair protecting cosmetic of the present invention, it protects the epicuticle of hair that is easily damaged by permanent treatment, hair dyeing, aging, ultraviolet rays, shampoo, etc. Can be maintained. Furthermore, it is very effective for improving the already damaged hair to a healthy state.

  The hair protecting agent according to the present invention is extracted from brown algae by a specific method.

  Examples of the brown algae that can be used as a starting material for the hair protecting agent according to the present invention include, for example, the brown alga plant (Phaeophyceas), the family Cherariaceae, the family Acrothraceae, or the family Spaematochaceae. For example, including Mozuku (Nemacytus decipeens OKAM). In addition, either natural or cultured mozuku, fresh mozuku just after harvesting, raw mozuku that has not been specially treated after harvesting, or mozuku that has been processed or processed, such as refrigerated mozuku, frozen mozuku, salted mozuku, etc. Good.

  The hair protecting agent according to the present invention is extracted from the brown algae using a solvent containing a lower alcohol. Lower alcohols that can be used in the present invention include methanol, ethanol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, isobutyl alcohol, sec-butyl alcohol, and tert-butyl alcohol, and mixtures thereof. From the viewpoints of safety, cost, etc., ethanol is preferable.

  The alcohol concentration of the solvent used in the present invention can be appropriately determined. The upper limit value may be determined according to the presence or absence of elution of useful components (for example, fluorotannins and fucoidan) in the raw material brown algae, the moisture content of the raw material brown algae, and the cost. The lower limit is preferably a final alcohol concentration of about 10 to 95%, more preferably about 40 to 80%, and most preferably about 45 to 60%. In the present specification, when it is referred to as “final alcohol (or ethanol) concentration” (sometimes simply referred to as “alcohol concentration”) regarding the extraction process of brown algae, the formula: final alcohol concentration (%) = The concentration (v / v) based on the volume obtained by [(alcohol volume) / (alcohol volume + water volume)] × 100.

  Moreover, the ratio of the brown algae to be extracted and the solvent containing alcohol can also be appropriately determined. You may determine according to cost, the time for a process, alcohol concentration, the moisture content of raw material brown algae, the presence or absence of the elution of useful components (for example, furotannins, fucoidan, etc.) in brown algae. Specifically, for example, it is preferably about 0.1 to 10,000 times, more preferably about 0.5 to 1,000 times, most preferably about 1 to 1 times (weight) of the raw material brown algae. Add 100 volumes (volume) of solvent.

  In the process of extracting the extract of brown algae which is an active ingredient of the hair protecting agent according to the present invention, it can also be obtained as a dry mosk containing a large amount of fucoidan which is one of the active ingredients contained in the brown algae. Therefore, in the extraction step of the present invention, an alkali is preferably added to the solvent from the viewpoint of maintaining the brown-green color that is a characteristic color of a fresh mozuku in the obtained dry mosk. The term “alkali” as used herein can change the solvent pH to the basic side, and includes alkali metal hydroxides including sodium hydroxide and potassium hydroxide, and alkalis including magnesium hydroxide and calcium hydroxide. Includes earth metal hydroxides. The alkali concentration can be set as appropriate. Preferably, the final concentration in the solvent is about 0.01 to 1000 mM, more preferably about 0.1 to 100 mM, and most preferably about 1 to 50 mM. Or it is the quantity which makes pH of a solvent near weak alkali, for example, pH is about 7.1-9.0, Preferably it is about 7.1-8.5, More preferably, it is about 7.5-8.0. The amount to be.

  In the extraction process of the present invention, operations such as agitation, shaking, repetition of immersion and unloading, and combinations thereof can be appropriately performed. The time for extraction can also be set as appropriate.

  The extraction step is a step of dehydrating brown algae mainly based on the dehydrating action of alcohol and the action of eliminating the water retention capacity of raw brown algae such as mozuku. The dehydration rate of the brown algae that have undergone the treatment in this step can be set to a target value by changing the alcohol concentration and / or the treatment time. In order to perform drying easily in the post-process for obtaining a dry mozuku, the dehydration rate of dehydrated brown algae (such as mozuku) as a residue after the extraction process is preferably about 20% or more (for example, about 20%). To about 99.9%), more preferably about 40% or more (for example, about 40% to 99.9%), and still more preferably about 60% or more (for example, about 60% to 99.9%). The dehydration rate (%) is obtained by the formula: dehydration rate (%) = [(weight of raw material brown algae) − (weight of brown algae after treatment)] / (weight of raw material brown algae) × 100. Value. The raw materials here are brown algae before treatment before being subjected to the extraction step, and the brown algae after treatment are immediately after passing through the extraction step with a solvent containing a lower alcohol, that is, from the extraction residue to dry mosc etc. This refers to brown algae (such as mozuku) that have not undergone a drying process or the like to obtain a dried product. The weight measurement is performed by a method usually performed by those skilled in the art. It may be appropriate to drain the water lightly.

  According to the extraction operation with the solvent containing the lower alcohol, extraction of mineral components such as NaCl from the raw brown algae is also performed. Therefore, the brown algae after extraction, which is a residue, can be desalted without losing useful components such as alginic acid and fucoidan, and a desalting step in the process of producing dried mozuku from the extracted residue Can be omitted.

  As described above, the active ingredient of the hair protecting agent according to the present invention is obtained by extracting brown algae with a solvent containing a lower alcohol, and adding a solvent containing a lower alcohol to the extracted residue, By performing this extraction operation, the target extract can be obtained in a higher yield, and at the same time, the dehydration rate of dehydrated brown algae (mozuku), which is an extraction residue, can be further increased.

  The extract extracted from the brown algae with the solvent containing the lower alcohol as described above may be used as it is in the state of the extract, or may be used after desalting from the extract. For the desalting treatment, for example, a known electrodialysis apparatus using an ion exchange membrane can be used. Further, in the present invention, from the viewpoint of completely removing the solvent and eliminating the adverse effects on the hair when used as a hair protecting agent, the desalted extract as described above is dried and powdered, and this is made into water. It may be used after being dissolved. Examples of the method for drying and pulverizing the extract include conventionally known methods such as a spray drying method, a freeze drying method, a fluidized bed granulation method, and a pulverization method using an excipient. It can be adopted as appropriate. Among these, the spray drying method is preferable because it is inexpensive and easy to mass-produce using a known spray drying apparatus (spray dryer).

  The extract from the brown algae obtained as described above may be used alone as a hair protecting agent, or may be used by appropriately adding other additives, etc. You may add and use. The water used in this case is preferably acidic water. This is due to the following reasons. The hair protecting agent or the liquid containing the same is used in the hair treatment described later, after treatment with permanent I solution (usually alkaline), and before treatment with permanent II solution (usually acidic). Is. Therefore, it is preferable to acidify the hair protecting agent-containing liquid used before the treatment so as not to hinder the treatment of the permanent permanent II solution.

  In addition, the said acidic water has-ion among electrolyzed water. That is, as an apparatus for generating water having sterilizing power, an apparatus for separating water into acidic water and alkaline water has been developed. This apparatus includes an electrolytic cell that separates water into acidic water and alkaline water, and the electrolytic cell partitions a partition between electrodes provided facing the inside. The partition wall prevents water separated into acidic water and alkaline water from mixing, and a microporous membrane that allows ions to pass therethrough and does not allow water to pass freely is used. In this device, when electricity is supplied to the water flowing into the electrolytic cell,-ions such as chlorine ions gather near one + electrode of a pair of opposed electrodes and become acidic water, and near the other-electrode. + Ions such as sodium and calcium gather to become alkaline water.

  Furthermore, you may combine the extract of this invention with the hair treatment agent etc. which contain a fucoidan as an active ingredient. Thereby, a more effective hair protecting agent can be obtained. As such fucoidan, those obtained by treating desired brown algae and the like by a known method can be used. For example, the method of extracting the brown algae used as the above-mentioned starting material with hot water or cold water, the method of extracting with an acid or alkaline aqueous solution, etc. are mentioned. In the hot water extraction method, the brown algae are suspended in hot water (for example, 60 to 100 ° C.) and extracted, and the supernatant is obtained by removing the precipitate from the suspension. Performing purification operations such as filtration and / or dialysis, and further performing lyophilization and other operations as necessary to obtain fucoidan. In the acid extraction method, the brown algae is suspended in an acid aqueous solution such as hydrochloric acid. After the extraction, the same treatment as in the case of the hot water extraction is performed to obtain a fucoidan. In these methods, if necessary, a step of further performing activated carbon, porous adsorption resin, ion exchange resin, dialysis, ultrafiltration, fractionation with ethanol, or the like may be added.

  In this case, as the brown algae, the residue obtained in the extraction step of the present invention may be used as it is, or the brown algae (dried mosk etc.) obtained through the steps of dehydrating and further drying the extraction residue. ) May be used. In the case of the latter (brown algae obtained through a drying step), dried brown algae (dried mozuku) containing a large amount of active ingredients such as fucoidan can be obtained. The step of obtaining dry brown algae (dry mozuku) containing a large amount of active ingredients such as fucoidan from the extracted residue is obtained by drying the brown algae remaining as a residue in the extraction step of the present invention ( This is a process for obtaining a dry mosk and the like. The “drying” broadly includes treatments (eg, draining) that reduce the water content. Conventional techniques can be used for drying in this step. For example, water removal by centrifugation, squeezing, contact with an absorber or maintaining on a mesh, sun drying, hot air drying, cold air drying, vacuum drying, and combinations thereof can be used. From the viewpoint of reproducing the texture similar to that of raw brown algae and reducing the production cost during rehydration, warm air drying at about 40 to 50 ° C. is preferable. According to this method, the time required for dehydration of brown algae as a residue can be made shorter than usual by passing through the extraction step of the present invention. Moreover, conditions, such as temperature at the time of drying, can be made gentle. This is preferable not only in terms of time, labor, cost, equipment reduction, etc., but also in that a dried brown algae can be obtained while maintaining the color tone, flavor and texture of fresh brown algae. Dried brown algae (dried mozuku, etc.) obtained by this method exhibit a color, flavor and texture close to those of fresh brown algae (mozuku, etc.) when returned with water.

  The dried brown algae (dried mozuku) are similar to the dry mosk obtained in Patent Document 2 (Japanese Patent No. 3454894), and are high-quality dry mosk that is inferior to fresh mosk. This dried mozuku can be used directly for foods, and has attracted attention as a raw material for fucoidan in addition to general cooking purposes. This dried mozuku is useful not only as an edible and food material, but also as a fucoidan raw material, and enables production of fucoidan that is cheaper and safer.

  In the present invention, a hair protecting agent comprising, as an active ingredient, an extract obtained by extracting a hair protecting agent containing fucoidan obtained from the residue in the extraction step as an active ingredient from a solvent containing a lower alcohol from the brown algae; You may use together and mixed. This protects the epicuticle of hair that is easily damaged by permanent treatment, hair dyeing, aging, ultraviolet light, shampoo, etc., and improves the effect of maintaining beautiful, glossy and healthy hair. Furthermore, it is extremely effective for improving the already damaged hair to a healthy state. When preparing a hair protecting agent using the dried mozuku as a raw material, it is preferable to use alkaline water of alkaline water and acidic water described above. The reason is as follows. That is, the hair protecting agent or the containing liquid is used before the treatment with the permanent I liquid (hereinafter sometimes referred to as Permanent I liquid) in the hair treatment described later. This is because, when the hair protecting agent-containing liquid prepared in this manner is used, it does not interfere with the subsequent treatment of the hair with the permanent I liquid that exhibits normal alkalinity.

  The hair protecting agent containing the lower alcohol extract from the brown algae according to the present invention as an active ingredient may be used alone or as described above in combination with the hair protecting agent containing fucoidan as an active ingredient. Alternatively, both may be used in combination.

  For example, the hair treatment method according to the present invention uses the first liquid containing the hair protecting agent containing the fucoidan and the second liquid containing the hair protecting agent containing the extract according to the present invention as an active ingredient. Method, first liquid containing a hair protecting agent containing fucoidan, second liquid containing a hair protecting agent containing the extract according to the present invention as an active ingredient, and hair containing the extract according to the present invention as an active ingredient And a method using a third liquid containing a protective agent.

  Examples of hair treatment include color (hair dyeing) and permanent (wave, straight, etc.). As a specific treatment method for these hair treatments, first, shampooing is performed as usual. At this time, it is preferable to use shampoo and alkaline water at a ratio of 1: 1 from the viewpoint of effectively treating the hair with Perm I solution. Next, an alkaline water (a hair treatment agent) containing fucoidan is applied evenly over the entire hair, including the scalp. The concentration of the alkaline water containing fucoidan is not particularly limited, but it is preferable to increase the concentration as the hair damage increases. Next, a coloring agent or a permanent I liquid is applied while wet. Thereafter, in the permanent treatment, an intermediate rinse is performed with a hair protecting agent containing the extract of the present invention or a cosmetic diluted with the extract, and then a permanent II liquid (hereinafter sometimes referred to as a permanent II liquid). Apply and leave. If straight, rinse after standing. On the other hand, in the case of color (hair dyeing), shampooing is appropriately performed. After these treatments, a hair protecting agent containing the extract according to the present invention as an active ingredient, preferably a hair cosmetic using acidic water, is applied to the entire hair. After rinsing, perform treatments as appropriate. Commercial treatment may be used.

  As described above, by using a hair protecting agent containing an extract of brown algae as an active ingredient, and further using a hair protecting agent containing fucoidan as an active ingredient, permanent treatment, hair dyeing, aging, ultraviolet rays, By protecting the epicuticle of hair that is easily damaged by shampoo or the like, it is possible to maintain beautiful, shiny and healthy hair, and it is also possible to improve the already damaged hair to a healthy state.

Example 1
<Preparation of hair protecting agent>
[Lower alcohol-containing solvent extraction of brown algae]
An equal amount of 99.5% ethanol was added to brown algae (Mozuku whole algae produced in the Kingdom of Tonga), and after sufficient stirring, the mixture was left at room temperature for 30 minutes to 1 hour to extract solvent-soluble components. This was filtered and separated into a residue and an extract (filtrate), and the extract was desalted and ethanol removed using an electrodialyzer. The obtained liquid was spray-dried using a spray dryer to obtain a dry powder. The dry powder was dissolved in purified water so as to have a content of 3% by weight to obtain a hair protecting agent A.

[Extraction of fucoidan from brown algae]
Ten times the amount of purified water was added to the residue and heated at 80 ° C. for 7 to 8 hours to extract water-soluble components. Subsequently, after clarification with a filter press machine, ultrafiltration was performed, and the obtained filtrate was sterilized at 95 ° C. for 10 minutes to obtain a hair protecting agent B (fucoidan content: 1.2% by weight).

(Example 2)
<Straight perm>
A hair cosmetic product (B content 10 wt%) composed of alkaline water and the above-mentioned hair protective agent B is applied as a first solution evenly to the entire hair of a teenage female 1 (severely damaged hair) after washing, and further commercially available. Of Perm I solution was applied. After leaving for a certain period of time and confirming softening, the hair was washed, and a hair cosmetic composition (A content 3 wt%) comprising acid water and the hair protecting agent A as a second liquid was applied evenly to the entire hair and dried. Next, it was ironed, a commercially available Perm II solution was applied, and after standing for a certain period of time, it was rinsed with water. Thereafter, the hair cosmetic I was further applied to the entire hair as a third liquid and mixed. After that, it was rinsed with water and treated. By performing the hair treatment using the protective agent of the present invention, the finger, gloss and tension were improved, and there was almost no change even after one week.

Example 3
<Straight perm>
Straight perm was performed in the same manner as in Example 2 on female 30s (hair with severe damage). By performing the hair treatment using the protective agent of the present invention, all of fingering, gloss and tension were improved, and there was almost no change even after one month.

Example 4
<Wave Perm>
The hair cosmetic A as a first solution was applied evenly over the entire hair of a woman in her 40s (damaged hair), and a commercially available Perm I solution was further applied for winding. After leaving for 5 to 10 minutes, the hair cosmetic I was applied evenly over the entire hair as the second solution, and then a commercially available Perm II solution was applied, and after standing for a certain time, it was rinsed with water. Thereafter, the hair cosmetic I was further applied to the entire hair as a third liquid and mixed. After that, it was rinsed with water, treated and dried. By performing the hair treatment using the protective agent of the present invention, the damaged hair became firm and firm, and the finish was light, and the wave was firmly applied to the rod size.

(Example 5)
<Color (dyeing)>
The hair cosmetic A as a first solution was applied evenly to the entire hair of a woman in her 30s after washing the hair, and a commercially available color agent was further applied and left to stand for 20-30 minutes. The hair was thoroughly emulsified with a mixture of the same amount of alkaline water added to a commercially available shampoo to remove the colorant, and then rinsed with water. Then, after washing the hair using the above-mentioned mixed solution of shampoo and alkaline water, the hair cosmetic I was applied to the whole hair as a second solution and was absorbed. After that, it was rinsed with water and treated. When the hair treatment was performed using the protective agent of the present invention, the hair tip portion was neither crumbly nor united.

(Example 6)
<Straight perm>
The test subject is a woman in her twenties (severely bruised hair), and hair makeup comprising acid water, the hair protecting agent A, and the hair protecting agent B instead of the hair cosmetic A as the second and third liquids A straight perm was performed in the same manner as in Example 2 except that the material (A content 3 wt%, B content 10 wt%) was used. By performing the hair treatment using this protective agent, all of fingering, gloss, and tension are further improved as compared to the case of using the hair cosmetic a, and there is almost no change even after 1 to 2 months. It was.

(Example 7)
<Wave Perm>
Except that the test subject was a woman in her twenties (severely damaged hair) and that the second and third liquids used hair cosmetics D instead of hair cosmetics A, as in Example 4. I did wave perm. By using this protective agent and treating the hair, the hair that was damaged more than the case of using the hair cosmetics i. It was hanging.

(Example 8)
<Color (dyeing)>
Coloring (dyeing) was carried out in the same manner as in Example 5 except that the test subject was a woman in her twenties and that the second liquid was replaced with the hair cosmetic A. By performing the hair treatment using this protective agent, the tip of the hair was not even more crumbly and the unity was not worse than when using the hair cosmetic a.

Claims (17)

  The brown algae includes a lower alcohol selected from the group consisting of methanol, ethanol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, isobutyl alcohol, sec-butyl alcohol, and tert-butyl alcohol, and mixtures thereof. A hair protecting agent comprising an extract obtained by extraction using a solvent.   The hair protecting agent according to claim 1, wherein the extract is dried, powdered and dissolved in water.   The hair protecting agent according to claim 1 or 2, wherein the lower alcohol is ethanol.   The brown algae is at least one kind of algae selected from algae belonging to the family Phyeophyceas, Chordariaceae, Acrotricaeae, and Spermatochaceae. The hair protecting agent according to crab.   The hair protecting agent according to claim 4, wherein the brown algae is a mozuku.   A hair protecting agent comprising two agents, a hair protecting agent containing fucoidan and the hair protecting agent according to any one of claims 1 to 5.   A hair protecting agent comprising three agents: a hair protecting agent containing fucoidan, the hair protecting agent according to any one of claims 1 to 5, and the hair protecting agent according to any one of claims 1 to 5.   A hair protecting agent obtained by mixing a hair protecting agent containing fucoidan and the hair protecting agent according to any one of claims 1 to 5.   A hair cosmetic comprising the hair protecting agent according to any one of claims 1 to 5 as an active ingredient.   A hair cosmetic comprising as an active ingredient a hair protecting agent containing fucoidan and the hair protecting agent according to any one of claims 1 to 5.   A hair treatment method using the hair protecting agent or hair cosmetic composition according to any one of claims 1 to 10.   The hair treatment method according to claim 11, comprising a first liquid containing a hair protecting agent containing fucoidan and a second liquid containing the hair protecting agent according to any one of claims 1 to 5.   1st liquid containing the hair protecting agent containing fucoidan, 2nd liquid containing the hair protecting agent in any one of Claims 1-5, and the hair protecting agent in any one of Claims 1-5 are included. The hair treatment method according to claim 11, comprising using the third liquid.   The hair treatment method according to claim 12 or 13, wherein the first liquid contains a hair protecting agent containing alkaline water and fucoidan.   The hair treatment method according to any one of claims 12 to 14, wherein the second liquid and / or the third liquid contains acidic water and the hair protecting agent according to any one of claims 1 to 5.   The hair dyeing method which performs the hair treatment in any one of Claims 11-15 at the time of hair dyeing. The permanent processing method with respect to the hair which performs the hair processing in any one of Claims 11-15 at the time of a permanent processing.