JP7350282B2 - Compositions for hair and skin cleaning - Google Patents

Description

The present invention relates to hair and skin cleansing compositions.

Astaxanthin is used in various fields such as cosmetics, detergents, and foods because of its high antioxidant ability and characteristic red-orange color. However, since astaxanthin easily deteriorates, technological development is underway to increase the stability of astaxanthin.

Techniques for increasing the stability of astaxanthin in cleaning products include, for example, a technique for suppressing the decrease in astaxanthin by storing liquid soap or liquid rinse containing astaxanthin in a light-shielding container (Patent Document 1); A liquid detergent composition (Patent Document 2) has been developed that includes at least one selected from the salts thereof, an amino acid surfactant having a carboxylate structure, and a carotenoid. Also, one or more selected from carotene and its derivatives, one or more selected from tocotrienols, tocopherols and their derivatives, and pyrophosphoric acid, etedoic acid, glycolic acid and salts thereof. A scalp and hair composition containing one or more types in a predetermined mass ratio (Patent Document 3) has been developed.

Japanese Patent Application Publication No. 2005-2175 International Publication No. 2015/016037 JP2008-273888A

However, in the techniques of Patent Documents 1 and 2, a decrease in astaxanthin was observed due to long-term storage or the influence of ultraviolet rays, and the stability of astaxanthin was insufficient. In addition, the technology of Patent Document 2 did not foam well and did not feel sufficiently moisturized after use. In the technique of Patent Document 3, a decrease in astaxanthin was observed during long-term storage, poor foaming and foam quality, and there were also problems with the feeling of use as a cleaning agent.

The present inventor has considered improving the stability of astaxanthin and improving foaming, but when astaxanthin and tocopherols are combined, the stability of astaxanthin improves, but foaming and foam quality deteriorate, so it is difficult to achieve both. was difficult. In addition, the dosage form was cloudy, and the appearance did not give an impression of the characteristic reddish-orange color of astaxanthin.

Therefore, an object of the present invention is to provide a hair and skin cleansing composition that has high astaxanthin stability, excellent foaming and foam quality, and feels moisturizing.

The present inventors have made extensive studies to solve the above problems. As a result, it was discovered that a hair and skin cleansing composition having the following structure could solve the above problems, and the present invention was completed.

The present invention includes, for example, the following [1] to [10].
[1] Astaxanthin (A) 0.0001 to 1% by mass, tocopherols (B) 0.001 to 2% by mass, ultraviolet absorber (C) 0.001 to 2% by mass, and nonionic surfactant ( D) A hair and skin cleaning composition comprising 0.01 to 5% by mass.
[2] The hair and skin cleaning composition according to [1], wherein the tocopherol (B) is at least one selected from tocopherol, tocotrienol, tocopherol acetate, and tocotrienol acetate.
[3] The ultraviolet absorber (C) is at least one selected from ethylhexyl methoxycinnamate, t-butylmethoxydibenzoylmethane, diethylaminohydroxybenzoylhexyl benzoate, octocrelline, ethylhexyl triazone, and oxybenzone-4. The hair and skin cleaning composition according to [1] or [2].
[4] The hair and skin cleaning composition according to any one of [1] to [3], wherein the nonionic surfactant (D) has an HLB of 11 to 18.
[5] The nonionic surfactant (D) according to any one of [1] to [4], wherein the nonionic surfactant (D) is at least one selected from polyoxyethylene hydrogenated castor oil and polyoxyethylene sorbitan fatty acid ester. Hair and skin cleaning composition.
[6] The hair and skin cleansing composition according to any one of [1] to [5], containing 0.01 to 3% by mass of vegetable oil (E).
[7] Contains 0.5 to 15% by mass of an anionic surfactant (F), wherein the anionic surfactant (F) is selected from N-acylamino acids, N-acylmethyltaurine, and salts thereof. The hair and skin cleansing composition according to any one of [1] to [6], which is at least one type of hair and skin cleaning composition.
[8] The vegetable oil (E) is macadamia nut oil, almond oil, meadowfoam oil, hazelnut oil, avocado oil, jojoba oil, vegetable squalane, argania spinosa kernel oil, shea butter, olive oil, rice germ oil, rose The hair and skin cleansing composition according to [6], which is at least one selected from hip oil, persic oil, corn oil, sunflower seed oil, and hybrid sunflower oil.
[9] The anionic surfactant (F) is disodium cocoyl glutamate, potassium cocoyl glutamate, triethanolamine cocoyl glutamate, sodium cocoyl glutamate, disodium lauroyl glutamate, potassium lauroyl glutamate, triethanolamine lauroyl glutamate, lauroyl glutamate. Sodium, potassium lauroylmethylalanine, lauroylmethylalanine triethanolamine, sodium lauroylmethylalanine, sodium lauroyl aspartate, sodium myristoylmethylalanine, sodium cocoylmethyltaurate, potassium cocoylmethyltaurate, magnesium cocoylmethyltaurate, and sodium cocoylmethyltaurate. The hair and skin cleansing composition according to [7], which is at least one selected from the following.
[10] The hair and skin cleaning composition according to any one of [1] to [9], which is a shampoo.

INDUSTRIAL APPLICATION This invention can provide the hair and skin cleaning composition which has high stability of astaxanthin, has excellent foaming and foam quality, and feels moisturized.

Next, the hair and skin cleansing composition of the present invention will be specifically explained.

<Hair and skin cleaning composition>
The hair and skin cleansing composition of the present invention contains 0.0001 to 1% by mass of astaxanthin (A), 0.001 to 2% by mass of tocopherols (B), and 0.001 to 2% of ultraviolet absorber (C). % by mass and 0.01 to 5% by mass of a nonionic surfactant (D).
In addition, the content of each of the above-mentioned components indicates the content when the composition for hair and skin cleansing is taken as 100% by mass.

<Astaxanthin (A)>
Astaxanthin (A) is a type of carotenoid and is classified as xanthophylls. Astaxanthin (A) has derivatives such as free type and ester type, but in the present invention, these are collectively referred to as astaxanthin (A).

Astaxanthin (A), a synthetic product or one obtained from a natural product may be used. When astaxanthin (A) is obtained from natural products, it can be extracted from Haematococcus algae, yeast of the genus Phaffia, shrimp, sea bream, salmon/trout, etc.

Astaxanthin (A) is not particularly limited, but it is preferable to use astaxanthin (A) extracted from Haematococcus algae because it is commercially available and easily available. As a commercially available product, for example, Hemalge RG (Sasaki Chemical Co., Ltd.) can be used.

The hair and skin cleansing composition of the present invention contains astaxanthin (A) in an amount of 0.0001 to 1% by weight, preferably 0.0005 to 0.1% by weight, and more preferably 0.0015 to 0.03% by weight. .

When astaxanthin (A) is within the above range, hair and skin can be moisturized after washing, and antioxidant effects can also be expected. In addition, the appearance of the agent gives a good impression of the orange color derived from astaxanthin, giving it a very good impression. If the amount of astaxanthin (A) is less than the lower limit, hair and skin will not feel moisturized and no antioxidant effect can be expected. In addition, in the appearance of the agent, the orange color derived from astaxanthin is not very noticeable. When the amount of astaxanthin (A) is more than the above upper limit, the hair and skin become sticky. In addition, the appearance of the agent appears to have a deep orange color derived from astaxanthin, giving a poor impression.
Astaxanthin (A) may be used alone or as a mixture containing derivatives.

<Tocopherols (B)>
The hair and skin cleansing composition of the present invention contains tocopherols (B) in an amount of 0.001 to 2% by weight, preferably 0.01 to 1% by weight, and more preferably 0.02 to 0.5% by weight. When the tocopherols (B) are within the above range, the stability of astaxanthin at high temperatures will be improved. If the amount of tocopherols (B) is less than the above-mentioned lower limit, the stability of astaxanthin at high temperatures will be poor, and if it is more than the above-mentioned upper limit, foaming and foam quality during hair washing will be poor. In addition, the agent becomes cloudy and its appearance deteriorates.

Examples of tocopherols (B) include tocopherols, tocotrienols, and derivatives thereof. Specifically, tocopherols (B) include tocopherols such as α-tocopherol, β-tocopherol, γ-tocopherol, and δ-tocopherol; tocotrienols such as α-tocotrienol, β-tocotrienol, γ-tocotrienol, and δ-tocotrienol; Examples include tocopherol acetate, tocopherol nicotinate, tocopherol linoleate, tocopherol oleate, tocopherol succinate, tocotrienol acetate, and tocotrienol acetate. Among these, tocopherol, tocotrienol, tocopherol acetate, and tocotrienol acetate are preferred, and tocopherol, tocotrienol, and tocopherol acetate are more preferred because they have excellent stability at high temperatures.

Tocopherols (B) may be used alone or in combination of two or more.
Note that the ratio of the content of tocopherols (B) to the content of astaxanthin (A) (content of tocopherols/content of astaxanthin) is not particularly limited, but is preferably 0.2 to 2000, for example. , 2 to 200 is more preferable.

<Ultraviolet absorber (C)>
The hair and skin cleansing composition of the present invention contains 0.001 to 2% by mass, preferably 0.01 to 1% by mass, more preferably 0.02 to 0.5% by mass of ultraviolet absorber (C). . When the ultraviolet absorber (C) is within the above range, the stability of astaxanthin under ultraviolet light is improved. If the amount of the ultraviolet absorber (C) is less than the above-mentioned lower limit, the stability of astaxanthin under ultraviolet light will be poor, and if it is more than the above-mentioned upper limit, foaming and foam quality during hair washing will be poor. In addition, the agent becomes cloudy and its appearance deteriorates.

Examples of the ultraviolet absorber (C) include a component that absorbs ultraviolet A waves and a component that absorbs ultraviolet B waves. Specifically, the ultraviolet absorber (C) includes components that absorb ultraviolet A waves such as t-butylmethoxydibenzoylmethane, diethylaminohydroxybenzoylhexylbenzoate, bisethylhexyloxyphenolmethoxyphenyltriazine; ethylhexyl methoxycinnamate; Examples include components that absorb ultraviolet B waves, such as octocrelline, ethylhexyltriazone, and oxybenzone-4, bisethylhexyloxyphenolmethoxyphenyltriazine. Among these, ethylhexyl methoxycinnamate, t-butylmethoxydibenzoylmethane, diethylaminohydroxybenzoylhexyl benzoate, octocrelline, ethylhexyl triazone, and oxybenzone-4 are preferred because they have excellent ultraviolet absorption effects, and ethylhexyl methoxycinnamate, and diethylaminohydroxybenzoylhexyl benzoate are more preferred.
The ultraviolet absorbers (C) may be used alone or in combination of two or more.

<Nonionic surfactant (D)>
The hair and skin cleansing composition of the present invention contains 0.01 to 5% by mass, preferably 0.05 to 3% by mass, more preferably 0.1 to 1.5% by mass of nonionic surfactant (D). include. When the nonionic surfactant (D) is within the above range, astaxanthin (A), tocopherols (B), and ultraviolet absorber (C) can be solubilized while maintaining a transparent dosage form. If the amount of the nonionic surfactant (D) is less than the lower limit, a transparent dosage form cannot be maintained and stability is poor. In addition, it becomes difficult to run your fingers through and the softness during rinsing becomes worse. If the amount of nonionic surfactant (D) is more than the above upper limit, foaming will be poor and hair and skin will become sticky.

The nonionic surfactant (D) preferably has an HLB of 11 to 18, more preferably 11 to 17, and most preferably 12 to 14.
Examples of the nonionic surfactant (D) include polyoxyethylene hydrogenated castor oil and polyoxyethylene sorbitan fatty acid ester. Specifically, PEG-30 hydrogenated castor oil, PEG-40 hydrogenated castor oil, PEG-50 hydrogenated castor oil, PEG-60 hydrogenated castor oil, PEG-70 hydrogenated castor oil, PEG-80 hydrogenated Examples include polyoxyethylene hydrogenated castor oil such as castor oil; polyoxyethylene sorbitan fatty acid esters such as polyoxyethylene sorbitan tristearate (20E.O.) and polyoxyethylene sorbitan monolaurate (20E.O.). Among these, PEG-40 hydrogenated castor oil, PEG-50 hydrogenated castor oil, PEG-60 hydrogenated castor oil, Polyoxyethylene sorbitan tristearate (20E.O.) and polyoxyethylene sorbitan monolaurate (20E.O.) are preferred, and PEG-50 hydrogenated castor oil is more preferred because of its lack of stickiness.

As polyoxyethylene hydrogenated castor oil, polyoxyethylene hydrogenated castor oil with an average added mole number of 20 to 90 can be used because it has excellent solubilizing power and has little negative effect on foaming, moisturizing feeling, and softness. It is preferable to use polyoxyethylene hydrogenated castor oil having an average number of added moles of 40 to 60. Note that the average number of added moles means the average number of added moles of the oxyethylene structure (-O-CH ₂ -CH ₂ -) constituting the polyoxyethylene hydrogenated castor oil.
The nonionic surfactants (D) may be used alone or in combination of two or more.

<Vegetable oil (E)>
The hair and skin cleansing composition of the present invention optionally contains vegetable oil (E), preferably from 0.01 to 3% by weight, more preferably from 0.1 to 1.5% by weight.

By optionally adding vegetable oil (E), smoothness and softness can be imparted during rinsing.
Specifically, the vegetable oil (E) includes macadamia nut oil, almond oil, meadowfoam oil, hazelnut oil, avocado oil, jojoba oil, vegetable squalane, argania spinosa kernel oil, shea butter, olive oil, rice germ oil, Examples include rosehip oil, persic oil, corn oil, sunflower seed oil, and hybrid sunflower oil. Among these, macadamia nut oil and almond oil are excellent in imparting a moisturizing finish and stability of the agent. , vegetable squalane, argania spinosa kernel oil, and shea butter are preferred, and macadamia nut oil is more preferred.
The vegetable oils (E) may be used alone or in combination of two or more.

<Anionic surfactant (F)>
The hair and skin cleansing composition of the present invention optionally contains an anionic surfactant (F), preferably 0.5 to 15% by mass, more preferably 1 to 10% by mass, (F) is preferably at least one selected from N-acylamino acids, N-acylmethyltaurine, and salts thereof.

The optional addition of an anionic surfactant (F) can make the agent less irritating.
Examples of the anionic surfactant (F) include disodium cocoyl glutamate, potassium cocoyl glutamate, triethanolamine cocoyl glutamate, sodium cocoyl glutamate, disodium lauroyl glutamate, potassium lauroyl glutamate, triethanolamine lauroyl glutamate, and lauroyl glutamate. N-acyl such as sodium glutamate, potassium lauroylmethylalanine, triethanolamine, sodium lauroylmethylalanine, sodium lauroylaspartate, sodium myristoylmethylalanine, ammonium lauroylglutamate, sodium lauroylsarcosine, sodium cocoylsarcosine, potassium cocoylglycine, etc. Amino acids and their salts; N-acylmethyl such as sodium cocoylmethyltaurate, potassium cocoylmethyltaurate, magnesium cocoylmethyltaurate, sodium cocoylmethyltaurate, sodium caproylmethyltaurate, sodium lauroylmethyltaurate, and potassium cocoylmethyltaurate Includes taurine and salts thereof. Among these, disodium cocoyl glutamate, potassium cocoyl glutamate, triethanolamine cocoyl glutamate, sodium cocoyl glutamate, disodium lauroyl glutamate, potassium lauroyl glutamate, triethanolamine lauroyl glutamate, lauroyl glutamate, and lauroyl glutamate have excellent foaming and foam retention effects. Sodium glutamate, potassium lauroylmethylalanine, triethanolamine, sodium lauroylmethylalanine, sodium lauroylaspartate, sodium myristoylmethylalanine, sodium cocoylmethyltaurate, potassium cocoylmethyltaurate, magnesium cocoylmethyltaurate, sodium cocoylmethyltaurine taurate is preferred, sodium lauroylmethylalanine and sodium cocoylmethyltaurate are more preferred, and sodium cocoylmethyltaurate is most preferred.

The anionic surfactant (F) may be used alone or in combination of two or more.
Most preferably, the hair and skin cleansing compositions of the present invention optionally contain both a vegetable oil (E) and an anionic surfactant (F).

<Optional ingredients>
Hair and skin cleansing compositions of the present invention typically contain water. The content of water is not particularly limited, and can be adjusted as appropriate depending on the purpose of use. Specific examples of water include tap water, ion-exchanged water, distilled water, purified water, and natural water, and sterilized water is preferred.

The hair and skin cleansing compositions of the invention optionally contain water, preferably from 69 to 99.5% by weight.
The hair and skin cleansing composition of the present invention may contain any other components in addition to the above-mentioned components as long as the effects of the present invention are not impaired. Examples of optional ingredients include surfactants (excluding nonionic surfactants (D) and anionic surfactants (F)), humectants, herbal medicines, pH adjusters, chelating agents, preservatives, and oxidizing agents. Including inhibitors, cooling agents, vitamins, proteins, polymers, fragrances, antimicrobials, thickeners and pigments.

Specifically, sodium laureth sulfate as a surfactant, polyquaternium-10 as a polymer, disodium EDTA as a chelating agent, citric acid and sodium citrate as a pH adjuster, polyethylene glycol distearate as a thickener, and preservative. Phenoxyethanol can be used as the agent.

<Production method>
The hair and skin cleansing composition of the present invention can be produced by stirring, mixing, heating, dissolving, dispersing, etc., using known methods, for example, except for using the above-mentioned components in the above-mentioned amounts. However, the manufacturing method is not particularly limited. The manufacturing method may be carried out under heating conditions in order to uniformly mix each component. The temperature in the case of manufacturing under heating conditions is, for example, 75 to 85°C.

<Dosage form>
Examples of the state of the hair and skin cleansing composition of the present invention include viscous liquid, gel, cream, and milk, and since it is easy to apply uniformly to hair and has a transparent appearance, Transparent viscous liquid and gel forms are preferred.

The appearance of the hair and skin cleansing composition of the present invention is preferably transparent, and preferably the oil layer and water layer are not separated. Specifically, the transmittance calculated by measuring the absorbance of the hair and skin cleansing composition at a wavelength of 580 nm using an absorbance meter is preferably 1% or more, and preferably 20% or more and less than 95%. It is more preferable.

The pH of the hair and skin cleansing composition of the present invention is preferably 6.0 to 8.0, more preferably 6.5 to 7.0, in order to reduce skin irritation. . Note that the pH measurement method is not particularly limited, and may be measured using a general pH measurement method (for example, glass electrode method) under appropriate measurement conditions.

<Application>
The hair and skin cleansing composition of the present invention can be used for cleaning hair and skin such as the scalp, face, and body. For example, when using a hair and skin cleaning composition for hair cleaning, shampoo (using a rinse, conditioner, treatment, etc. in the post-process), rinse-in shampoo, conditioning shampoo, treatment-in shampoo (using a rinse, conditioner, treatment, etc. in the post-process), It can be used as a conditioner, treatment, etc.). Furthermore, among the shampoos, rinse-in shampoos, conditioning shampoos, and treatment-in shampoos, it is preferable to use it as a shampoo because it gives the hair a more moisturized and soft feel.

The hair and skin cleansing composition of the present invention is not particularly limited in its use, and can be applied to the entire body for hair and skin cleansing. Further, the hair and skin cleansing composition of the present invention has high stability of astaxanthin, excellent foaming and foam quality, and provides a feeling of moisture.

EXAMPLES Next, the present invention will be described in more detail with reference to Examples, but the present invention is not limited thereto.

<Examples 1 to 40, Comparative Examples 1 to 8>
Hair and skin cleansing compositions were produced by mixing each component according to the formulations shown in Tables 3 to 12, and samples for physical property evaluation (1) to (5) and sensory evaluation (6) to (14) were prepared. did. In addition, the numerical value of the prescription in a table|surface represents the mass % of each component when the composition for hair and skin cleansing is taken as 100 mass %.

The results of physical property evaluation and sensory evaluation of the hair and skin cleansing compositions are shown in Tables 3 to 12.
In addition, in the Examples and Comparative Examples, commercially available products listed in Table 1 were used.

<Physical property evaluation>
The physical properties of the hair and skin cleansing composition were evaluated according to the evaluation items and evaluation criteria described in (1) to (5) below.

<Sensory evaluation>
Ten expert panelists (hairdressers) wet the damaged hair strands with warm water at about 40° C., and then applied 0.5 g of each of the hair and skin cleansing compositions of Examples and Comparative Examples.

The hair and skin cleansing compositions were evaluated according to the evaluation methods and evaluation criteria described in (6) to (14) below.
Regarding (12) and (13), in addition to the evaluation using damaged hair tresses, 2 g of each sample was used to wash the face, and the feel of the skin after washing was also evaluated.

The average of the 10 evaluation scores for each item was calculated and evaluated as follows.
◎: The average evaluation score of 10 professional panelists (hairdressers) is 3.5 points or more.
○: The average evaluation score of 10 professional panelists (hairdressers) is 2.5 points or more and less than 3.5 points.
Δ: The average evaluation score of 10 professional panelists (hairdressers) is 1.5 points or more and less than 2.5 points.
×: The average evaluation score of 10 professional panelists (hairdressers) is less than 1.5 points.

[Damage processing]
In the sensory evaluation, damaged hair strands were used that simulated the damage of normal human hair. Damage treatment was performed using the following method.

An aqueous solution for damage treatment was prepared with the formulation shown in Table 2 and heated to 60°C. A hair bundle (approximately 30 cm, 10 g of human hair) (product name: BS-B3A, manufactured by Beaulux) was immersed therein for 10 minutes to damage it. Thereafter, the hair bundle was taken out of the damage treatment aqueous solution, washed with water, and dried.

〔evaluation〕
(1) Transparency of agent The transparency of the sample was evaluated visually and by transmittance.
The transmittance was calculated by measuring the absorbance of the sample at a wavelength of 580 nm using an absorbance meter (Spectrophotometer "V-730IRM" manufactured by Jusco).
◎: Transmittance is 20% or more and less than 95%, it is transparent. ○: Transmittance is 1% or more and less than 20%, and it is slightly cloudy. △: Transmittance is 0.2% or more and less than 1%, and it is very transparent. Cloudy ×: Transmittance is less than 0.2%, opaque

(2) Stability of agent After filling 90 g of the sample into a 100 mL PET container, it was stored in a constant temperature bath at 45° C. for 90 days, and separation at that time was confirmed.
◎: Not separated at all 〇: Slightly separated after 60 days △: Separated between 30 and 60 days ×: Separated within 30 days

(3) Irritation of agent 1 g of protein zein (zein: manufactured by Fuji Film Wako Pure Chemical Industries, Ltd.) was mixed with 50 mL of a 5% aqueous solution of the sample, and stirred for 60 minutes. After stirring, undissolved zein was extracted, dried, and the dry mass was measured. The dissolution rate was calculated from the dry weight of zein and evaluated as irritation.
◎: Zein dissolution rate is less than 20%, and irritation is very low. ○: Zein dissolution rate is 20% or more and less than 35%, and irritation is low. △: Zein dissolution rate is 35% or more and less than 50%. ×: The zein dissolution rate is 50% or more, and the irritation is high.

(4) Stability of astaxanthin (high temperature)
After filling 90 g of the sample into a 100 mL PET container, it was stored in a constant temperature bath at 45° C. for 90 days. The sample before and after storage was diluted twice with water, and the absorbance at 400 nm was measured using an absorbance meter (Spectrophotometer "V-730IRM" manufactured by Jusco) to calculate the residual rate of astaxanthin.
◎: The residual rate is 90% or more. ○: The residual rate is 70% or more and less than 90%. △: The residual rate is 50% or more and less than 70%. ×: The residual rate is less than 50%.

(5) Stability of astaxanthin (ultraviolet light)
After filling 45 g of the sample into a transparent 50 mL PET container (CEPI-50; manufactured by Takemoto Yoki Co., Ltd.) that does not have an ultraviolet absorption effect, it was irradiated with ultraviolet rays for 14 days.
The sample before and after UV irradiation was diluted twice with water, and the absorbance at 400 nm was measured using an absorbance meter (Spectrophotometer "V-730IRM" manufactured by Jusco) to calculate the residual rate of astaxanthin.

For ultraviolet irradiation, Sankyo Denki's fluorescent lamp GL20SE, which has a maximum absorption wavelength of 306 nm, was used as a UVB light source, and the same company's FL20S/BLB fluorescent lamp, which has a maximum absorption wavelength of 352 nm, was used as a UVA light source. .
◎: The residual rate is 80% or more. ○: The residual rate is 60% or more and less than 80%. △: The residual rate is 40% or more and less than 60%. ×: The residual rate is less than 40%.

(6) External color The impression given by the external color of the sample was evaluated.
4 points: The orange color derived from astaxanthin is neither too dark nor too light, giving a very good impression. 3 points: The orange color derived from astaxanthin is visible and gives a good impression. 2 points: The orange color derived from astaxanthin is deep and gives a good impression. Bad or weak, I don't really feel the presence of astaxanthin.
1 point: The orange color derived from astaxanthin is very dark and gives a bad impression, or it is pale and the presence of astaxanthin is not felt.

(7) Foaming A sample was applied to the hair strands, and the foaming quality when lathered was visually evaluated.
4 points: Very good foaming 3 points: Good foaming 2 points: Not much foaming 1 point: No foaming at all

(8) Fineness of foam A sample was applied to a hair bundle, and the fineness of foam when lathered was evaluated by touch.
4 points: The bubbles are very fine 3 points: The bubbles are very fine 2 points: The bubbles are somewhat coarse 1 point: The bubbles are coarse

(9) Foam retention When a sample was applied to a hair bundle and lathered, the lather retention was visually evaluated after 30 seconds.
4 points: Very good foam retention 3 points: Good foam retention 2 points: Somewhat poor foam retention 1 point: Poor foam retention

(10) Rinsing with fingers A sample was applied to a hair bundle, lathered, and rinsed with warm water at around 40° C. The ease with which fingers could run through the hair was evaluated by touch.
4 points: Very good finger movement 3 points: Good finger movement 2 points: Poor finger movement 1 point: Very poor finger movement

(11) Softness during rinsing A sample was applied to the hair bundle, lathered, and rinsed with warm water at around 40° C., and the softness of the hair was evaluated by touch.
4 points: Very soft 3 points: Soft 2 points: Hard 1 point: Very hard

(12) Moisture feeling The sample was applied to the hair strands, lathered, and rinsed with warm water at around 40°C. Thereafter, the moisture of the hair after drying using a hair dryer was evaluated by touch.
In addition, an expert panelist took 2 g of the sample, washed his face, and after lightly wiping off moisture, evaluated the moisture of the skin by touch.
4 points: Hair and skin are very moisturized 3 points: Hair and skin are moisturized 2 points: Hair and skin are not moisturized at all 1 point: Hair and skin are not moisturized at all

(13) No stickiness The sample was applied to hair strands, lathered, and rinsed with warm water at around 40°C. Thereafter, the stickiness of the hair after drying using a hair dryer was evaluated by touch.
In addition, an expert panelist took 2 g of the sample, washed his face, and after lightly wiping off moisture, evaluated the lack of stickiness on the skin by touch.
4 points: Hair and skin are not sticky at all 3 points: Hair and skin are hardly sticky 2 points: Hair and skin are slightly sticky 1 point: Hair and skin are very sticky

(14) Softness of the finish The sample was applied to the hair strands, lathered, and rinsed with warm water at around 40°C. Thereafter, the softness of the hair when dried using a hair dryer was evaluated by touch.
4 points: Very soft 3 points: Soft 2 points: Hard 1 point: Very hard

The hair and skin cleansing compositions produced in Examples 1 to 40 gave good results in evaluation items (1) to (14). Furthermore, Example 40 gave particularly good results.
It can be seen that the hair and skin cleansing composition of the present invention has high stability of astaxanthin, excellent foaming and foam quality, and excellent moisturizing feeling.

The hair and skin cleansing composition produced in Comparative Example 1 contained a small amount of astaxanthin (A), so the stability of astaxanthin was poor, and the composition did not feel sufficiently moisturized after use. In addition, the orange color derived from astaxanthin was pale, and the presence of astaxanthin was hardly felt.

The hair and skin cleansing composition produced in Comparative Example 2 had poor foaming and was sticky because it contained a large amount of astaxanthin (A). Furthermore, the agent was opaque and the orange color derived from astaxanthin seemed very dark, giving a poor impression of the appearance of the agent.

The hair and skin cleansing composition produced in Comparative Example 3 contained a small amount of tocopherols (B), so the stability of astaxanthin at high temperatures was poor. Furthermore, the stability of astaxanthin under ultraviolet light was also poor.

The hair and skin cleansing composition produced in Comparative Example 4 contained a large amount of tocopherols (B), and therefore had poor stability. In addition, the foam did not last long and was sticky.
In the hair and skin cleansing composition produced in Comparative Example 5, the stability of astaxanthin under ultraviolet light was poor because the amount of the ultraviolet absorber (C) was small.

The hair and skin cleansing composition produced in Comparative Example 6 contained a large amount of ultraviolet absorber (C), and therefore had poor foaming, foam fineness, and foam retention.
The hair and skin cleansing composition produced in Comparative Example 7 had poor stability because the amount of nonionic surfactant (D) was small. In addition, the agent was cloudy.

Since the hair and skin cleansing composition produced in Comparative Example 8 contained a large amount of nonionic surfactant (D), the hair felt hard during rinsing and after finishing. It was also sticky.

Claims (4)

Astaxanthin (A) 0.0001-1% by mass, tocopherols (B) 0.001-2% by mass, ultraviolet absorber (C) 0.02-0.5% by mass, nonionic surfactant (D ) 0.01 to 5% by mass and anionic surfactant (F) 0.5 to 15% by mass,
The tocopherols (B) are at least one selected from tocopherol, tocotrienol, and tocopherol acetate,
The nonionic surfactant (D) is PEG-50 hydrogenated castor oil,
A shampoo composition, wherein the anionic surfactant (F) is at least one selected from sodium cocoylmethyltaurate and sodium lauroylmethylalanine. The ultraviolet absorber (C) is at least one selected from ethylhexyl methoxycinnamate, t-butylmethoxydibenzoylmethane, diethylaminohydroxybenzoylhexyl benzoate, octocrelline, ethylhexyl triazone, and oxybenzone-4. Item 1. The shampoo composition according to item 1 . The shampoo composition according to claim 1 or 2 , comprising 0.01 to 3% by mass of vegetable oil (E). The vegetable oil (E) is macadamia nut oil, almond oil, meadowfoam oil, hazelnut oil, avocado oil, jojoba oil, vegetable squalane, argania spinosa kernel oil, shea butter, olive oil, rice germ oil, rosehip oil, The shampoo composition according to claim 3 , which is at least one selected from persic oil, corn oil, sunflower seed oil, and hybrid sunflower oil.