Damage repair agents and hair cosmetics

Abstract

To provide: a damage recovery agent that effectively repairs damage to hair and / or skin caused by chlorine, and also has high safety; and a hair and / or skin cosmetic.SOLUTION: Provided are: a damage recovery agent which repairs damage to hair and / or skin caused by chlorine, and contains a peach extract; and a hair and / or skin cosmetic which is used to repair damage to hair and / or skin caused by chlorine, and contains the damage recovery agent.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to a damage recovery agent for recovering damage to hair and / or skin caused by chlorine, and a hair and / or skin cosmetic used for recovering damage to hair and / or skin caused by chlorine.

Background Art

[0002] Generally, tap water used for bathing and water used in pools are mostly chlorinated for hygienic water maintenance and contain residual chlorine. Therefore, hair and skin may be damaged by bathing or using a pool. Specifically, for example, the hair may become frizzy or crispy, the color of the hair may change, the skin may become rough, or the moisture content of the stratum corneum may decrease. In recent years, there are concerns about the effects on the human body.

[0003] So far, in order to remove residual chlorine contained in water before it affects the human body, a search has been made for substances having an excellent residual chlorine removal effect. For example, a residual chlorine remover containing peach extract has been proposed (see, for example, Patent Document 1).

[0004] On the other hand, after the human body is affected, that is, after damage is caused to the hair and skin due to chlorine, there is still no sufficient material provided as a highly safe material having an effect of recovering this damage.

[0005] Therefore, there is a strong demand for the prompt provision of a highly safe material having an effect of recovering damage to hair and skin caused by chlorine.

Prior Art Documents

[0007] The present invention aims to solve the aforementioned problems in the conventional era and achieve the following objectives. Specifically, the present invention aims to provide a damage repair agent that has excellent restorative effects on hair and skin damage caused by chlorine, and is highly safe, as well as a hair and / or skin cosmetic. [Means for solving the problem]

[0008] As a result of diligent research to achieve the above objective, the inventors of this invention discovered that peach extract has an excellent restorative effect against damage to hair and skin caused by chlorine.

[0009] The present invention is based on the inventors' aforementioned findings, and the means for solving the aforementioned problems are as follows: <1> A damage repair agent that repairs damage to hair and / or skin caused by chlorine, This is a damage recovery agent characterized by containing peach extract. <2> A hair and / or skin cosmetic used to repair damage to hair and / or skin caused by chlorine, The aforementioned <1> This is a hair and / or skin cosmetic characterized by containing the damage repair agent described above. [Effects of the Invention]

[0010] According to the present invention, it is possible to solve the aforementioned problems in the conventional method and achieve the aforementioned objectives, and to provide a damage repair agent that has an excellent restorative effect on hair and skin damage caused by chlorine, and is highly safe, as well as a hair and / or skin cosmetic. [Modes for carrying out the invention]

[0011] (Damage recovery item) The present invention provides a damage repair agent for repairing hair and / or skin damage caused by chlorine, and comprises at least peach extract, and optionally other components.

[0012] The aforementioned damage repair agent has the effect of repairing damage to hair and / or skin caused by chlorine. The aforementioned damage to hair and / or skin caused by chlorine refers to all damage caused by chlorine, including, for example, damage to the surface and interior of hair, deterioration of hair color (reduction in shine, brightness, and vibrancy), increased friction of hair, decrease in moisture content of the stratum corneum, and damage to the surface of the skin (roughness of the skin surface). The recovery of hair and / or skin damage caused by chlorine means that the damage caused by chlorine is improved, for example, by reducing the damaged area on the surface and inside of the hair, improving the reduced shine, brightness, or vividness of the hair, reducing the increased friction of the hair, increasing the reduced moisture content of the stratum corneum, and reducing the increased roughness of the skin surface. The degree of recovery is sufficient if it is at least an improvement from the damaged state, and may even return to the state before the damage occurred. There are no particular limitations on the method for confirming the restorative effect on hair and / or skin damage caused by the aforementioned chlorine, and a suitable method can be selected depending on the purpose. For example, the test method described in the Examples section below can be used.

[0013] Although the details of the substance contained in the peach extract that exhibits a restorative effect on hair and / or skin damage caused by chlorine are unknown, the fact that the peach extract has such excellent effects and is useful as a damage repair agent is completely unknown to the present inventors and represents a new finding.

[0014] <Peach extract> Peach (scientific name: Almond peaches L., synonym: Prunus peachesPrunus (L.) Batch is a deciduous small tree belonging to the genus Prunus in the family Rosaceae, and is native to China. The peach is cultivated all over the world for food and ornamental purposes. The seeds of the peach are called "tounin" and are used in medicine, and the leaves of the peach are said to be effective for treating skin inflammation.

[0015] The aforementioned peach extract may be prepared from the part of the peach used as the raw material for extraction, or a commercially available product may be used.

[0016] There are no particular restrictions on the part of the peach used for extraction, and it can be appropriately selected depending on the purpose. Examples include the fruit, seeds, leaves, bark, flowers, roots, and mixtures of these parts. These may be used individually or in combination of two or more. Among these, the leaves are preferred as the part of the peach used for extraction.

[0017] There are no particular restrictions on the method for preparing the peach extract portion, and it can be appropriately selected depending on the purpose. For example, the extract portion may be dried and then subjected to solvent extraction either as is or by grinding it using a crusher. The drying may be done in the sun or using a commonly used drying machine.

[0018] The peach extract can be easily obtained by methods commonly used for plant extraction. There are no particular restrictions on the form of the peach extract, and it can be appropriately selected depending on the purpose. Examples include the extract itself, a diluted extract, a concentrated extract, a dried extract, or crude or purified products thereof.

[0019] The method for extracting the peaches is not particularly limited and can be appropriately selected according to the purpose. For example, it can be extracted using any extraction device at room temperature or under reflux heating. More specifically, the extraction site of the peaches, which is the extraction raw material, is put into a treatment tank filled with an extraction solvent, and while stirring appropriately as needed, it is left standing for, for example, 30 minutes to 4 hours to elute the soluble components, and then filtered to remove the extraction residue to obtain an extraction solution. The extraction solution may further be concentrated by distilling off the extraction solvent and dried. Also, a pretreatment such as degreasing may be performed with a nonpolar solvent such as hexane and then used as an extraction raw material. By performing a pretreatment such as degreasing, the extraction treatment with a polar solvent can be efficiently performed.

[0020] The conditions (extraction time and extraction temperature), extraction solvent, and amount of use of the extraction solvent in the extraction of the peaches are not particularly limited and can be appropriately selected according to the purpose.

[0021] The extraction solvent for the peaches is not particularly limited and can be appropriately selected according to the purpose. For example, water, a hydrophilic solvent, or a mixed solvent thereof can be mentioned.

[0022] The water is not particularly limited and can be appropriately selected according to the purpose. For example, in addition to pure water, tap water, well water, mineral water, mineral water, hot spring water, spring water, fresh water, etc., those obtained by subjecting these to various treatments are included. Treatments applied to water include, for example, purification, heating, sterilization, filtration, ion exchange, adjustment of osmotic pressure, buffering, etc. In addition, the water that can be used as the extraction solvent includes purified water, hot water, ion-exchanged water, physiological saline, phosphate buffer solution, phosphate buffered saline, etc. The water may be used alone or in combination of two or more.

[0023] The hydrophilic solvent is not particularly limited and can be appropriately selected depending on the purpose. Examples include lower alcohols having 1 to 5 carbon atoms such as methanol, ethanol, propyl alcohol, and isopropyl alcohol; lower aliphatic ketones such as acetone and methyl ethyl ketone; and polyhydric alcohols having 2 to 5 carbon atoms such as 1,3-butylene glycol, propylene glycol, and glycerin. These may be used individually or in combination of two or more.

[0024] There are no particular restrictions on the amount of the hydrophilic solvent used relative to the water in the mixed solvent, and it can be appropriately selected depending on the purpose. However, when using the lower alcohol, it is preferable to mix 1 to 90 parts by mass per 10 parts by mass of water; when using the lower aliphatic ketone, it is preferable to mix 1 to 40 parts by mass per 10 parts by mass of water; and when using the polyhydric alcohol, it is preferable to mix 1 to 90 parts by mass per 10 parts by mass of water.

[0025] There are no particular restrictions on the temperature of the peach extraction solvent, and it can be appropriately selected depending on the purpose, but it is preferable to use a temperature of room temperature or below the boiling point of the solvent.

[0026] There are no particular restrictions on the extraction conditions for the peaches, and they can be appropriately selected according to the purpose. However, the amount of extraction solvent is preferably 5 to 15 times the amount of the raw material (by mass ratio). When water is used as the extraction solvent, extraction is preferably carried out at 50°C to 95°C for about 1 to 4 hours. When a mixed solvent of water and a hydrophilic organic solvent is used as the extraction solvent, extraction is preferably carried out at 40°C to 90°C for about 30 minutes to 4 hours.

[0027] The obtained peach extract may be subjected to dilution, concentration, drying, purification, and other processes according to conventional methods in order to obtain dilutions, concentrates, dried products, crude products, purified products, etc.

[0028] There are no particular restrictions on the purification method of the peach extract, and it can be appropriately selected depending on the purpose. Examples of purification methods include liquid-liquid partition extraction, various types of chromatography, and membrane separation.

[0029] The obtained peach extract can be used as is as an active ingredient in the damage repair agent, but the concentrated liquid and the dried product are preferred for ease of use. When obtaining the dried product, a carrier such as dextrin or cyclodextrin may be added to improve its hygroscopic properties.

[0030] There are no particular restrictions on the amount of peach extract contained in the damage repair agent, and it can be appropriately adjusted depending on the physiological activity of the peach extract. The damage repair agent may consist solely of the peach extract.

[0031] <Other ingredients> The aforementioned other components are not particularly limited and can be appropriately selected depending on the form in which the damage repair agent is used. Examples include excipients, moisture-proofing agents, preservatives, strengthening agents, thickeners, emulsifiers, antioxidants, sweeteners, acidulants, seasonings, colorants, fragrances, whitening agents, moisturizers, oily components, UV absorbers, surfactants, alcohols, powder components, colorants, aqueous components, water, and skin nutrients. These may be used individually or in combination of two or more. There are no particular limitations on the specific examples of the aforementioned other ingredients, and they can be appropriately selected depending on the purpose. Examples include hyaluronic acid, hyaluronic acid hydrolysate, collagen, collagen hydrolysate, ascorbic acid, ascorbic acid derivatives, ascorbic acid glycosides, coenzyme Q10, propolis, royal jelly, royal jelly protein hydrolysate, fucoidan, aloe powder, aloe extract, blueberry powder, blueberry extract, isoflavones, noni powder, noni extract, garlic powder, garlic extract, turmeric powder, turmeric extract, chitosan, glucosamine, chlorella powder, chlorella extract, carnitine, maca powder, maca extract, blackcurrant powder, blackcurrant extract, Sparassis crispa powder, Sparassis crispa extract, and powders and / or extracts of other plants.

[0032] There are no particular restrictions on the content of the other components in the damage recovery agent, and they can be appropriately selected depending on the purpose.

[0033] <Application> The aforementioned damage repair agent has excellent restorative properties against hair and / or skin damage caused by chlorine and is highly safe. Therefore, it can be suitably used, for example, as an active ingredient in hair and / or skin cosmetics used to repair hair and / or skin damage caused by chlorine.

[0034] Furthermore, the damage repair agent has at least one of the following effects: excellent improvement of the surface and interior condition of hair, excellent improvement of hair color, excellent improvement of hair friction, excellent improvement of moisture content of the stratum corneum, and excellent improvement of the surface condition of the skin. Therefore, it is a hair surface and interior condition improving agent that improves damage to at least one of the surface and interior of hair caused by chlorine, more specifically, a hair surface and interior damage area reducing agent that reduces damage to at least one of the surface and interior of hair caused by chlorine; a hair color improving agent that improves damage to hair color caused by chlorine, more specifically, a hair color improving agent that improves damage to hair color caused by chlorine. It can be suitably used as: an agent that improves at least one of the reduced shine, brightness, and vividness of hair; a hair friction force improving agent that improves the increased friction force of hair caused by chlorine, more specifically, a hair friction force reducing agent that reduces the increased friction force of hair caused by chlorine; a stratum corneum moisture content improving agent that improves the decrease in the moisture content of the stratum corneum caused by chlorine, more specifically, a stratum corneum moisture content increasing agent that increases the decreased moisture content of the stratum corneum caused by chlorine; and a skin surface condition improving agent that improves damage to the skin surface caused by chlorine, more specifically, a skin surface roughness reducing agent that reduces the roughness of the skin surface caused by chlorine.

[0035] Furthermore, the damage repair agent can also be suitably used as a reagent for research on the mechanism of action of its restorative effect against hair and / or skin damage caused by chlorine.

[0036] There are no particular restrictions on the dosage form of the aforementioned damage recovery agent, and it can be appropriately selected according to the purpose. Examples include liquids, tablets, powders, capsules, granules, and extracts.

[0037] The aforementioned damage-recovering agent is preferably applied to humans, but it can also be applied to animals other than humans (for example, mice, rats, hamsters, dogs, cats, cows, pigs, monkeys, etc.) as long as its effects are achieved.

[0038] There are no particular restrictions on the amount, duration, or other methods of use of the aforementioned damage recovery agent; these can be appropriately selected considering the physiological activity of the peach extract.

[0039] (Hair and / or skin cosmetics) The hair and / or skin cosmetic of the present invention is a hair and / or skin cosmetic used to repair damage to hair and / or skin caused by chlorine, and comprises at least the damage repair agent of the present invention described above, and optionally comprises other components.

[0040] <Damage Recovery Potion> The aforementioned damage recovery agent is the damage recovery agent of the present invention as described above. There are no particular restrictions on the content of the damage repair agent in the hair and / or skin cosmetic, and it can be appropriately selected considering the type of cosmetic and the physiological activity of the peach extract, but preferably 0.0001% to 20% by mass, and more preferably 0.0001% to 10% by mass, when converted to the amount of the peach extract. The hair and / or skin cosmetic may consist only of the damage repair agent.

[0041] <Other ingredients> The other ingredients in the aforementioned hair and / or skin cosmetic are not particularly limited and can be appropriately selected from the main ingredients, auxiliary ingredients, or other ingredients commonly used in the manufacture of cosmetics, depending on the purpose. Examples include astringents, bactericidal and antibacterial agents, whitening agents, UV absorbers, moisturizers, cell activators, anti-inflammatory and anti-allergic agents, antioxidants and free radical scavengers, oils and fats, waxes, hydrocarbons, fatty acids, alcohols, esters, surfactants, and fragrances. These may be used individually or in combination of two or more.

[0042] There are no particular restrictions on the content of the other ingredients in the aforementioned hair and / or skin cosmetic, and they can be appropriately selected depending on the purpose.

[0043] The hair and / or skin cosmetic of the present invention can be used on a daily basis, and through the action of the active ingredient, peach extract, it can exert various physiologically active effects, including the ability to repair damage to hair and / or skin caused by chlorine as described above, very effectively.

[0044] There are no particular restrictions on the type of hair and / or skin cosmetic, and they can be appropriately selected according to the purpose. Examples include ointments, creams, lotions, serums, lotions, gels, sols, sprays, packs, foundations, body soaps, hair tonics, hair lotions, shampoos, rinses, and conditioners.

[0045] The aforementioned hair and / or skin cosmetic is preferably applied to humans, but may also be applied to animals other than humans (e.g., mice, rats, hamsters, dogs, cats, cows, pigs, monkeys, etc.) as long as its effects are achieved.

[0046] There are no particular restrictions on the amount, duration, or other methods of use of the aforementioned hair and / or skin cosmetic, and these can be appropriately selected considering the physiological activity of the peach extract.

[0047] As described above, the damage repair agent and hair and / or skin cosmetic of the present invention have excellent restorative effects against damage to hair and / or skin caused by chlorine and are highly safe. Therefore, the present invention also relates to a method for repairing damage to hair and / or skin caused by chlorine, characterized by administering at least one of the damage repair agent and / or hair and / or skin cosmetic to an individual having damage to hair and / or skin caused by chlorine. [Examples]

[0048] The following describes embodiments of the present invention, but the present invention is not limited in any way to these embodiments.

[0049] (Manufacturing example 1: Manufacturing of hairspray) Using peach extract (Yamanashi Prefecture peach leaf extract BG30, manufactured by Maruzen Pharmaceutical Co., Ltd.: extract of peach leaves using a mixed solvent of 1,3-butylene glycol and water) as the peach extract, a hairspray with the following composition was manufactured by a conventional method. 〔composition〕 • Peach extract ··· 1.0% by mass (Yamanashi Prefecture-produced peach leaf extract BG30) • Phenoxyethanol ··· 0.4% by mass • 1,3-Butylene Glycol ··· 3.0% by mass • Citric acid ··· 0.01% by mass • Sodium citrate ··· 0.035% by mass • Purified water • Remaining amount Total 100% by mass

[0050] (Comparative manufacturing example 1: Manufacturing of hairspray) In the above-mentioned Production Example 1, a hairspray was manufactured in the same manner as before, except that peach extract was not used.

[0051] (Manufacturing example 2: Emulsion production) As a peach extract, a peach extract (Yamanashi Prefecture peach leaf extract BG30, manufactured by Maruzen Pharmaceutical Co., Ltd.: an extract of peach leaves using a mixed solvent of 1,3-butylene glycol and water) was used to produce an emulsion with the following composition by a conventional method. 〔composition〕 • Peach extract ··· 1.0% by mass (Yamanashi Prefecture-produced peach leaf extract BG30) • Phenoxyethanol ··· 0.4% by mass • 1,3-Butylene Glycol ··· 3.0% by mass • Citric acid ··· 0.01% by mass • Sodium citrate ··· 0.035% by mass • Purified water • Remaining amount Total 100% by mass

[0052] (Comparative manufacturing example 2: Emulsion manufacturing) In the above-mentioned production example 2, the emulsion was produced in the same manner except that peach extract was not used.

[0053] (Test Example 1) We selected 29 female participants (ages 32-57, average age 46) who went to a swimming pool at least twice a week. These participants had been diagnosed by a dermatologist as having chlorine-induced skin damage. The aforementioned subjects were divided into the following groups, and for 8 weeks, hairspray was applied to their hair twice a day (0.5 mL per application). Group 1: The group (n=15) that had the hairspray produced in Production Example 1 applied. Group 2: The group that received hairspray manufactured in Comparative Production Example 1 (hereinafter sometimes referred to as the "placebo group") (n=14)

[0054] <Improvement effect on the surface condition of hair> Using a scanning electron microscope (SEM: JSM58010LV, JEOL), the surface of the subjects' hair was observed at the start of the study, 4 weeks after the start of the study, and 8 weeks after the start of the study, and the damaged area was measured. In addition, the improvement rate (%) of the damage to the hair surface condition was calculated using the following formula (1). The results are shown in Table 1. -Formula (1)- Hair surface damage improvement rate (%) ={(T0-(T4 or T8)) / T0}×100 In equation (1), "T0" represents the value of the damage area at the start of the test, and "T4 or T8" represents the value of the damage area 4 weeks or 8 weeks after the start of the test.

[0055] [Table 1]

[0056] As shown in Table 1, Group 1, which received hairspray containing peach extract, showed a reduction in the damaged area. Therefore, it was confirmed that peach extract has an excellent effect in improving the surface condition of hair.

[0057] <Hair color improvement effect - 1> A colorimeter (CR400, Konica Minolta) was used to measure the L-value of the subjects' hair at the start of the study, 4 weeks after the start of the study, and 8 weeks after the start of the study. In addition, the percentage improvement in hair color (shine, brightness) was calculated using the following formula (2). The results are shown in Table 2. -Formula (2)- Hair color (shine, brightness) damage improvement rate (%) ={((T4 or T8)-T0) / T0}×100 In equation (2), "T0" represents the L value at the start of the test, and "T4 or T8" represents the L value 4 weeks or 8 weeks after the start of the test.

[0058] [Table 2]

[0059] The results in Table 2 show that in Group 1, which applied hairspray containing peach extract, an increase in L value was observed, confirming an improvement in hair shine and brightness. Therefore, it was confirmed that peach extract has an excellent effect on improving hair color.

[0060] <Hair color improvement effect - 2> A colorimeter (CR400, Konica Minolta) was used to measure the b-value of the subjects' hair at the start of the study, 4 weeks after the start of the study, and 8 weeks after the start of the study. In addition, the percentage improvement in hair color (vividness) was calculated using the following formula (3). The results are shown in Table 3. -Formula (3)- Hair color (vividness) damage improvement rate (%) ={((T4 or T8)-T0) / T0}×100 In equation (3), "T0" represents the b-value at the start of the study, and "T4 or T8" represents the b-value 4 weeks or 8 weeks after the start of the study.

[0061] [Table 3]

[0062] The results in Table 3 show that in Group 1, which applied hairspray containing peach extract, an increase in the b-value was observed, confirming an improvement in hair vibrancy. Therefore, it was confirmed that peach extract has an excellent effect on improving hair color.

[0063] <Improvement of hair friction - 1> Using the Instron Universal Testing System 5565 (manufactured by Illinois Tool Works), the maximum friction force of the subjects' hair was measured at the start of the test and four weeks after the start of the test. Furthermore, the damage improvement rate (%) of the hair friction force (maximum value) was calculated using the following formula (4). The results are shown in Table 4. -Formula (4)- Damage improvement rate (%) for hair friction force (maximum value) ={(T0-T4) / T0}×100 In equation (4), "T0" represents the maximum frictional force of the hair at the start of the test, and "T4" represents the maximum frictional force of the hair four weeks after the start of the test.

[0064] [Table 4]

[0065] The results in Table 4 show that in Group 1, where hairspray containing peach extract was applied, a reduction in the maximum frictional force of the hair was observed. Therefore, it was confirmed that peach extract has an excellent effect in improving hair frictional force.

[0066] <Improvement of hair friction - 2> The average friction force of the subjects' hair was measured at the start of the test and four weeks after the start of the test using the Instron Universal Testing System 5565 (manufactured by Illinois Tool Works). Furthermore, the damage improvement rate (%) of the hair friction force (average value) was calculated using the following formula (5). The results are shown in Table 5. -Formula (5)- Damage improvement rate (%) for hair friction force (average value) ={(T0-T4) / T0}×100 In equation (5), "T0" represents the average frictional force of the hair at the start of the test, and "T4" represents the average frictional force of the hair four weeks after the start of the test.

[0067] [Table 5]

[0068] As shown in Table 5, Group 1, which was treated with hairspray containing peach extract, showed a reduction in the average value of hair friction. Therefore, it was confirmed that peach extract has an excellent effect in improving hair friction.

[0069] (Test Example 2) We selected 29 female participants (ages 32-57, average age 46) who went to a swimming pool at least twice a week. These participants had been diagnosed by a dermatologist as having chlorine-induced skin damage. The subjects were divided into the following groups, and for 8 weeks, they applied lotion to their faces twice a day (0.5 mL per application). Group 1: The group to which the emulsion produced in Production Example 2 was applied (n=15) Group 2: The group to which the emulsion produced in Comparative Production Example 2 was applied (hereinafter sometimes referred to as the "placebo group") (n=14)

[0070] <Improves moisture content in the stratum corneum> A Corneometer (CM825, manufactured by Courage+khazaka electronic GmbH) was used to measure the water content in the stratum corneum of the subjects' skin at the start of the study and 8 weeks after the start of the study. The percentage improvement in stratum corneum water content was calculated using the following formula (6). The results are shown in Table 6. -Formula (6)- Damage improvement rate of stratum corneum moisture content (%) ={(T8-T0) / T0}×100 In formula (6), "T0" represents the amount of water contained in the stratum corneum at the start of the test, and "T8" represents the amount of water contained in the stratum corneum 8 weeks after the start of the test.

[0071] [Table 6]

[0072] The results in Table 6 show that in Group 1, which received a lotion containing peach extract, an increase in the moisture content of the stratum corneum was observed. Therefore, it was confirmed that peach extract has an excellent effect in improving the moisture content of the stratum corneum.

[0073] <Improvement effect on the surface condition of the skin> Using a 3D image analysis system (PRIMOS Compact 5.8, Canfield Scientific), the skin surface of subjects was analyzed at the start of the study and 8 weeks after the start of the study, and the arithmetic mean height (Sa) of the skin surface was calculated. In addition, the improvement rate (%) of damage to the skin surface condition was calculated using the following formula (7). The results are shown in Table 7. Note that "Sa" is a parameter that extends the arithmetic mean height (Ra) of a line to a surface, and represents the average of the absolute values ​​of the height of each point relative to the average surface plane. -Formula (7)- Improvement rate (%) of damage to the surface condition of the skin ={(T0-T8) / T0}×100 In equation (7), "T0" represents the arithmetic mean height (Sa) of the skin surface at the start of the study, and "T8" represents the arithmetic mean height (Sa) of the skin surface 8 weeks after the start of the study.

[0074] [Table 7]

[0075] As shown in Table 7, a reduction in Sa values ​​was observed in Group 1, which received a lotion containing peach extract. Therefore, it was confirmed that peach extract has an excellent effect in improving the surface condition of the skin.

[0076] (Combination example 1) A beauty serum with the following composition was manufactured by conventional methods. • Peach extract ··· 0.01g (Peach extract (*1), manufactured by Maruzen Pharmaceutical Co., Ltd.) (*1: Extract of peach leaves using a mixed solvent of ethanol and water) • Chamomile extract ··· 0.1g • Carrot extract ··· 0.1g Xanthan gum ··· 0.3g • Hydroxyethylcellulose ··· 0.1g • Carboxyvinyl polymer ··· 0.1g • 1,3-Butylene glycol ··· 4.0g • Dipotassium glycyrrhizinate ··· 0.1g Glycerin ··· 2.0g • Potassium hydroxide ··· 0.25g · Fragrance ··· 0.01g • Preservative (methyl parahydroxybenzoate) ··· 0.15g • Ethanol ··· 2.0g • Purified water... Remainder (assuming a total volume of 100g)

[0077] (Combination example 2) A cream with the following composition was manufactured by conventional methods. • Peach extract ··· 0.05g (Peach extract LA (*2), manufactured by Maruzen Pharmaceutical Co., Ltd.) (*2: Extract of peach leaves using a mixed solvent of ethanol and water) • Sophora flavescens extract ··· 0.1g • Scutellaria baicalensis extract • 0.1g • Liquid paraffin ··· 5.0g • Bleached beeswax • 4.0g • Squalane • 10.0g Cetanol ··· 3.0g • Lanolin ··· 2.0g • Stearic acid ··· 1.0g • Polyoxyethylene sorbitan oleate (20E.O.) ··· 1.5g Glyceryl monostearate ··· 3.0g • Oil-soluble licorice extract ··· 0.1g • 1,3-Butylene glycol ··· 6.0g Methyl parahydroxybenzoate ··· 1.5g · Flavoring ··· 0.1g • Purified water... Remainder (assuming a total volume of 100g)

[0078] (Combination example 3) A cream with the following composition was manufactured by conventional methods. • Peach extract ··· 0.2g (Peach extract BG-J (*3), manufactured by Maruzen Pharmaceutical Co., Ltd.) (*3: Extract of peach leaves using a mixed solvent of 1,3-butylene glycol and water) • Stearyltrimethylammonium chloride ··· 1.5g • Polyoxyethylene cetyl ether ··· 1.0g • Cetyl alcohol ··· 2.0g Octyldodecanol ··· 1.0g • Cationized cellulose ··· 0.5g • Propylene glycol • 5.0g • Sapindus mukorossi extract ··· 0.2g • Scutellaria baicalensis extract ··· 0.5g • Phellodendron bark extract • 0.3g • Rosemary extract ··· 0.5g · Flavoring ··· 3.0g • Purified water... Remainder (assuming a total volume of 100g)

[0079] Examples of embodiments of the present invention include the following: <1> A damage repair agent that repairs damage to hair and / or skin caused by chlorine, This is a damage recovery agent characterized by containing peach extract. <2> The following describes the effects of having at least one selected from the group consisting of the effects of improving the condition of at least one of the surface and inner surfaces of the hair, the effect of improving the hair color, the effect of improving the frictional force of the hair, the effect of improving the moisture content of the stratum corneum, and the effect of improving the surface condition of the skin. <1> This is the damage recovery item described in [the document / section]. <3> A hair and / or skin cosmetic used to repair damage to hair and / or skin caused by chlorine, The aforementioned <1> from <2> A hair and / or skin cosmetic characterized by containing a damage repair agent as described in any of the above. [Industrial applicability]

[0080] According to the present invention, it is possible to provide a damage repair agent that has an excellent restorative effect on hair and / or skin damage caused by chlorine and is also highly safe. The damage repair agent can be suitably used, for example, as an active ingredient in hair and / or skin cosmetics used to repair hair and / or skin damage caused by chlorine.

Claims

1. A damage repair agent that repairs hair damage caused by chlorine, It contains an extract from the peach leaf, The extract from the peach leaves is either an extract obtained using a mixed solvent of 1,3-butylene glycol and water, or an extract obtained using a mixed solvent of ethanol and water. A damage repair agent characterized by having at least one action selected from the group consisting of an action that improves the condition of at least one of the surface and / or interior of the hair, an action that improves the color of the hair, and an action that improves the frictional force of the hair.

2. A hair cosmetic used to repair hair damage caused by chlorine, A hair cosmetic characterized by containing the damage repair agent described in claim 1.

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