Hair composition, application thereof and daily chemical product

Abstract

The invention belongs to the field of cosmetics, and discloses a hair composition, application thereof and a daily chemical product, the hair composition comprises the following components: dihydroxyindole, cysteine, ribes nigrum leaf extract, raspberry leaf extract and perilla leaf extract; the hair composition is prepared from dihydroxyindole, cysteine, ribes nigrum leaf extract, raspberry leaf extract and perilla leaf extract in a mass ratio of (5-40): (5-50): (1-20): (1-20): (1-20). According to the hair composition prepared by the invention, the synergistic effect of the dihydroxyindole, the cysteine and the three plant extracts and the synergistic effect of the three plant extracts are utilized, so that the whole system is more stable, and a better coloring effect can be achieved; meanwhile, a hair care component hydrolyzed keratin is added into the hair composition, so that the hair composition has the effects of protecting hair and protecting color.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cosmetics, and discloses a hair composition and its use, and daily chemical products. BACKGROUND

[0002] Since ancient times, people have tried to change the color of their hair with various natural materials to pursue beauty or highlight their identity. With the development of the times, modern hair dye products have emerged as the times require. Early hair dye compositions rely on chemical synthetic dyes, which can meet the basic dyeing needs, but have many problems. The use of components such as p-phenylenediamine in early hair dyes has attracted much attention due to its excellent coloring ability. However, its harm to human health cannot be underestimated, in addition to high allergenicity, long-term contact may even pose a risk of carcinogenesis. At the same time, the alkaline components in such hair dyes can damage the cuticle structure of the hair, causing the internal moisture of the hair to be lost, resulting in dry, split, and lackluster hair.

[0003] In the background of the frequent problems of many traditional hair dye ingredients, dihydroxyindole has begun to enter people's field of vision. Dihydroxyindole is an indole derivative naturally present in hair melanin. Compared with traditional hair dye ingredients such as p-phenylenediamine, it has unique advantages. In terms of safety, dihydroxyindole has lower allergenicity and less potential threat to human health. In terms of hair dyeing effect, it can provide a more natural color to the hair because its structure is similar to the hair's own melanin, and the dyed hair color is closer to the natural hair color. Moreover, dihydroxyindole has a protective effect on the hair to some extent, which can reduce the damage to the hair caused by the hair dyeing process.

[0004] In recent years, the application of plant pigments in the field of hair dyeing has also gradually attracted attention. Plant pigments are widely sourced from various parts of plants such as roots, stems, leaves, flowers, and fruits. These plant pigments have natural and mild properties, and have less irritation to the scalp and hair. In terms of environmental protection, compared with chemical synthetic dyes, the production process of plant pigments is more environmentally friendly and reduces pollution to the environment. However, plant pigments also have some limitations, such as relatively poor dyeing durability, the color fades gradually after multiple washes, and the color selection range is relatively limited, making it difficult to adjust some extremely bright or special colors.

[0005] The prior art CN 116617101 B discloses a pigment composition for dyeing, darkening and nourishing hair, comprising a pigment obtained from a plant source, a simulated melanin precursor, a peroxide, and a water-miscible or insoluble organic compound, which uses a plant pigment as a hair dyeing agent for dyeing and darkening hair, and indeed avoids the problems of scalp allergy caused by benzidine and its derivatives, hydrogen peroxide and the like, but further observation finds that the scheme also has certain problems, the coloring effect is poor, the plant pigment dyeing durability is relatively poor, and a plurality of surfactants must be added to maintain the stability of the system, and the preparation process is relatively complex.

[0006] The prior art CN 116889524 A discloses a hair darkening composition based on polydihydroxyindole liposomes, which is composed of the following components by weight: polydihydroxyindole liposomes, penetration enhancer, stabilizer, synergist, pH adjuster. The scheme prepares polydihydroxyindole into liposomes to maintain the stability of polydihydroxyindole. The process of the scheme is also relatively complex, and a stabilizer needs to be additionally added to maintain the stability.

[0007] Therefore, the technical problem to be solved by the present application is how to prepare a hair composition which not only has better dyeing and darkening effect, but also has hair care function, can maintain system stability, and has long-lasting dyeing and hair care. SUMMARY

[0008] The present application aims to disclose a hair composition, comprising dihydroxyindole, cysteine, black tea mulberry leaf extract, raspberry leaf extract, perilla leaf extract. The composition utilizes the synergistic effect of dihydroxyindole, cysteine and three plant extracts, and the synergistic effect between the three plant extracts, can make the whole system more stable, and can have better coloring effect; in the preferred scheme of the present application, a hair care ingredient hydrolyzed keratin is added to the hair composition, which has hair care and color protection effects.

[0009] Meanwhile, the present application also provides the use and daily chemical product of the hair composition.

[0010] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0011] A hair composition, comprising the following components: dihydroxyindole, cysteine, black tea mulberry leaf extract, raspberry leaf extract, perilla leaf extract; the mass ratio of dihydroxyindole, cysteine, black tea mulberry leaf extract, raspberry leaf extract, and perilla leaf extract in the hair composition is 5-40:5-50:1-20:1-20:1-20.

[0012] The technical scheme of the present application adopts dihydroxyindole, cysteine, black tea palm leaf extract, raspberry leaf extract and perilla leaf extract to prepare a hair composition. When these substances are used together, there is a synergistic effect. The possible mechanism is as follows:

[0013] Dihydroxyindole is prone to oxidation, and after oxidation, it turns black and forms a macromolecular form, increasing the difficulty of entering the hair interior, ultimately leading to a decline in effect. Cysteine has a strong reducing property due to the presence of sulfhydryl (-SH), and the use of cysteine can effectively prevent dihydroxyindole from being oxidized, keeping it in a small molecular form and facilitating its entry into the hair interior. At the same time, cysteine has the effect of stretching the disulfide bond of the hair, which is more conducive to the entry of dihydroxyindole into the inner layer of the hair and enhances the hair dyeing effect.

[0014] Black tea palm leaf extract is rich in flavonoids, vitamin C, polyphenols and anthocyanins, etc. Vitamin C has an antioxidant effect, and polyphenols can effectively chelate metal ions to prevent dihydroxyindole from being prematurely and rapidly oxidized and aggregated.

[0015] Raspberry leaf extract is rich in tannic acid, raspberry ketone, phenolic acid and flavonoids, which helps to form more stable melanin polymers with dihydroxyindole and more firmly bind with hair protein.

[0016] Perilla leaf extract is rich in rosmarinic acid, flavonoids, phenolic acid and terpene compounds, which can effectively reduce the barrier resistance of the stratum corneum, promote the opening of the hair scales, and promote the penetration and diffusion of dihydroxyindole and other active ingredients into the hair cortex.

[0017] Black tea palm leaf extract, raspberry leaf extract and perilla leaf extract all contain plant pigments. Dihydroxyindole has a complementary penetration effect on these three plant extracts. When it first enters the hair interior, it can make the macromolecular plant pigments more smoothly enter the hair interior and combine with specific amino acid residues in hair keratin through hydrogen bonds, van der Waals forces, etc., thereby achieving the purpose of enhancing the hair dyeing effect. Moreover, these three plant extracts also have a synergistic effect on enhancing the hair dyeing effect.

[0018] When the above components are used in combination, cysteine can ensure that dihydroxyindole and plant extracts efficiently enter the hair interior. At this time, dihydroxyindole will be oxidized with air to form a macromolecular structure. The plant pigments in the plant extracts and dihydroxyindole combine with different parts or different amino acid residues of hair keratin, respectively, forming multiple binding sites, making the attachment of plant pigments on the hair more firm and less likely to be eluted, thereby enhancing the hair dyeing effect and durability.

[0019] Preferably, the dihydroxyindole is one or more combinations of 5,6-dihydroxyindole, 5,6-dihydroxyindole-2-carboxylic acid, and polydihydroxyindole.

[0020] Preferably, the hair composition further contains hydrolyzed keratin, wherein the mass ratio of hydrolyzed keratin to dihydroxyindole is 1-25:5-30.

[0021] Hydrolyzed keratin, especially low molecular weight hydrolyzed keratin, can penetrate the hair core and bind with dihydroxyindole, making the hair dyeing and darkening effect more durable; it also replenishes the nutrients lost by the hair, repairs damaged hair cuticles, and makes the scalp smoother and shinier.

[0022] Furthermore, the present invention also provides the use of the hair-applied composition described above in the preparation of daily chemical products.

[0023] Preferably, the daily chemical product is a daily chemical product used for hair dyeing and hair care.

[0024] Finally, the present invention also discloses a daily chemical product containing the hair-care composition as described above.

[0025] Preferably, the content of the hair-applied composition in the said daily chemical product is 0.01wt% to 10wt%.

[0026] Preferably, the dosage form of the daily chemical product is one of spray, paste, powder, emulsion, or foam.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] The hair composition prepared by this invention contains dihydroxyindole, cysteine, black tea leaf extract, raspberry leaf extract, and perilla leaf extract. This composition utilizes the synergistic effect of dihydroxyindole, cysteine, and the three plant extracts, as well as the synergistic effect among the three plant extracts themselves, to make the entire system more stable and achieve a better coloring effect. Simultaneously, the hair composition contains hydrolyzed keratin, a hair-care ingredient, which has hair-care and color-protecting effects. Attached Figure Description

[0029] Figure 1 A photo of the volunteer's hair before it was dyed;

[0030] Figure 2 Photos of volunteers' hair after using hair dye. Detailed Implementation

[0031] The technical solutions of the present application will be described clearly and completely below in combination with the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the present application.

[0032] Product information:

[0033] Polydihydroxyindole: purchased from Sichuan Meilanning High Polymer Material Co., Ltd.;

[0034] 5,6-dihydroxyindole: purchased from Guangzhou Jiazi Daily Chemical Co., Ltd.;

[0035] 5,6-dihydroxyindole-2-carboxylic acid: purchased from Hubei Jianchu Biological Medicine Co., Ltd.;

[0036] Black tea palm leaf extract: purchased from Xianting (Guangzhou) Trade Co., Ltd., with an effective component content of 25 wt%;

[0037] Raspberry leaf extract: purchased from Xianting (Guangzhou) Trade Co., Ltd., with an effective component content of 25 wt%;

[0038] Perilla leaf extract: purchased from Guangzhou Luojie Biological Technology Co., Ltd., with an effective component content of 30 wt%;

[0039] Hydrolyzed keratin: purchased from Shanghe Chemical Co., Ltd., with a molecular weight of about 400 Dalton.

[0040] Embodiments

[0041] A hair dyeing cream, the formula table of which is shown in Table 1.

[0042] Table 1 Formula table of hair dyeing cream

[0043]

[0044]

[0045] The formula of the hair composition shown in Table 1 can refer to Table 2; wherein the dihydroxyindole of composition 4 is 5,6-dihydroxyindole; the dihydroxyindole of composition 5 is 5,6-dihydroxyindole-2-carboxylic acid; and the dihydroxyindole of the remaining compositions is polydihydroxyindole.

[0046] Table 2 Formula table of hair composition (parts by weight)

[0047]

[0048]

[0049] The different compositions were applied to the hair dyeing paste to obtain hair dyeing pastes 1-16; the hair dyeing pastes 1-16 correspond to the hair use compositions 1-16.

[0050] Performance testing

[0051] The obtained hair dyeing pastes 1-16 were tested according to the following method:

[0052] Irritation test:

[0053] Ten male and ten female volunteers were randomly selected, and the hair dyeing paste 6 prepared from the composition 6 and the ammonia-containing hair dye were respectively applied to the back of the ears of the volunteers, with the left ear being the ammonia-containing hair dye and the right ear being the hair dyeing paste. After 1 hour, more than 80% of the subjects indicated that the left ear had varying degrees of itching irritation, but 20 volunteers had no discomfort reaction on the right ear. It can be seen that the hair dyeing paste of the present application has no irritation to the skin.

[0054] Lab test:

[0055] The hair dyeing test on the hair bundle in vitro was carried out using the hair dyeing paste, and the Lab evaluation was carried out, and the specific method was as follows: the hair dyeing paste was used on 50% gray hair with L value of 38.4, and the hair was applied and rubbed for 10 minutes, and stayed for 60 minutes; then washed with clean water and dried.

[0056] The Lab value of the hair was tested using the color difference meter CM700D, the hair was straightened and laid flat on the table, and the color difference meter CM700D was used to cover the hair and automatically test 3 times, and the average value was taken. L, a, b are the parameters of the standard international color space diagram, L value refers to black and white, the larger the L value, the whiter; a value refers to red and green, the larger the a value, the redder; b value refers to yellow and blue, the larger the b value, the yellower. The L value of normal black hair is 15-19, the smaller the L value, the darker the hair; the detection results are shown in Table 3.

[0057] Table 3 result data table

[0058] L a b Hair dye 1 16.42 0.34 0.06 Hair dye 2 18.17 0.41 0.10 Hair dye 3 15.29 0.46 0.23 Hair dye 4 17.33 -0.08 0.76 Hair dye 5 18.68 0.83 2.32 Hair dye 6 17.70 0.41 0.13 Hair dye 7 17.11 0.44 0.18 Hair dye 8 20.02 0.99 1.11 Hair dye 9 21.06 0.9 1.49 Hair dye 10 20.42 0.54 0.94 Hair dye 11 22.58 0.65 2.06 Hair dye 12 23.08 1.0 2.54 Hair dye 13 22.52 1.78 2.76 Hair dye 14 29.33 0.86 2.86 Hair dye 15 23.2 1.14 1.39 Hair dye 16 27.65 0.56 2.49

[0059] From the detection results in Table 3, it can be seen that the L of the hair dyeing paste 3 is the lowest, and the hair is the darkest; the L values of the hair dyeing pastes 1-7 do not exceed 19, and the hair use compositions all have good hair dyeing and darkening effect. The hair dyeing paste 6 was tested by volunteers, and the comparison before and after dyeing also showed good hair dyeing and darkening effect and good hair gloss. Figure 1 ) after dyeing( Figure 2 ) also showed good hair dyeing and darkening effect and good hair gloss.

[0060] The L value of the hair composition of hair dyeing paste 8-10 is increased without any one of black tea palm leaf extract, raspberry leaf extract, and perilla leaf extract; the L value of the hair composition of hair dyeing paste 11-13 is further increased with only any one of black tea palm leaf extract, raspberry leaf extract, and perilla leaf extract; and the data of hair dyeing paste 8-13 show that the hair composition of the application has a significant synergistic effect of improving hair dyeing and blackening hair by using black tea palm leaf extract, raspberry leaf extract, and perilla leaf extract.

[0061] Further, the L value of the hair composition of hair dyeing paste 14-16 is significantly increased, between 23.2-29.33, without dihydroxyindole, three plant extracts, or cysteine, indicating that the effect of hair dyeing and blackening hair is poor.

[0062] Hair care effect test

[0063] The following tests are performed on hair dyeing paste 6 and 7:

[0064] The gloss value is tested by a gloss meter (GL200, Germany) to analyze the change of hair gloss, and the greater the gloss value, the better the gloss of the object surface. The gloss values before and after dyeing are measured in parallel for three times to take the average value, and the gloss change rate is calculated. The results are shown in Table 4.

[0065] Table 4 Gloss change rate

[0066] Before dyeing After dyeing Change rate of gloss Hair dye 6 4.45 4.98 11.91％ Hair dye 7 4.58 5.11 11.57％

[0067] After the original hair bundle is treated with hair dyeing paste 6, the gloss is increased by 11.91%; and after the original hair bundle is treated with hair dyeing paste 7, the gloss is increased by 11.57%. It is shown that hydrolyzed keratin can well supplement the lost nutrients of hair to improve the gloss of hair and has a hair care effect.

[0068] The change of average comprehensive load value (N) before and after using the hair dyeing paste is compared by a dynamic combing tester (COMBING TESTER, SK-7A, Japan), and the smaller the average comprehensive load value, the better the smoothness of hair and the easier the combing; the average comprehensive load values before and after dyeing are measured in parallel for three times to take the average value, and the average comprehensive load change rate is calculated. The results are shown in Table 5.

[0069] Table 5 Average comprehensive load change rate

[0070] Before dyeing (N) After dyeing (N) Average change rate of general load Hair dye 6 1327.88 705.21 -47％ Hair dye 7 1258.36 731.59 -42％

[0071] The average change rate of the total load was -47% for the original hair tress using hair dye 6 and -42% for the original hair tress using hair dye 7. This shows that the hydrolyzed keratin greatly improves the smoothness of the hair tress and has excellent conditioning properties for the hair.

[0072] As can be seen from the data in Tables 4 and 5, the addition of hydrolyzed keratin to the hair compositions of hair dyes 6 and 7 provides them with hair care properties.

[0073] It will be apparent to those skilled in the art that the application is not limited to the details of the foregoing exemplary embodiments and that the present application can be implemented in other specific forms without departing from the spirit or essential characteristics thereof. The foregoing embodiments are therefore to be considered in all respects as illustrative only and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A hair composition, characterized by, The hair composition comprises the following components: dihydroxyindole, cysteine, black tea Piper nigrum leaf extract, raspberry leaf extract, perilla leaf extract; the mass ratio of dihydroxyindole, cysteine, black tea Piper nigrum leaf extract, raspberry leaf extract, perilla leaf extract in the hair composition is 5-40:5-50:1-20:1-20:1-20.

2. The rinse-off composition of claim 1, wherein The dihydroxyindole is one or a combination of 5,6-dihydroxyindole, 5,6-dihydroxyindole-2-carboxylic acid, and polydihydroxyindole.

3. The hair composition according to claim 1, wherein The hair composition further comprises hydrolyzed keratin, and the mass ratio of hydrolyzed keratin to dihydroxyindole is 1-25:5-30.

4. Use of the hair composition according to any one of claims 1-3 for preparing a daily-use product.

5. Use according to claim 4, characterized in that, The daily-use product is a daily-use product for dyeing and conditioning hair.

6. A daily care product, characterized in that The daily-use product contains the hair composition according to any one of claims 1-3.

7. The daily cosmetic according to claim 6, wherein The content of the hair composition in the daily-use product is 0.01wt%-10wt%.

8. The daily cosmetic according to claim 6, characterized by, The dosage form of the daily-use product is one of spray, cream, powder, emulsion, and foam.

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