CN110141541B

CN110141541B - Dandruff-removing itching-relieving scalp conditioning liquid and preparation method and application thereof

Info

Publication number: CN110141541B
Application number: CN201910523588.1A
Authority: CN
Inventors: 胡兴国; 周礼云; 吴知情; 万岳鹏; 李强; 龚盛昭; 龙君
Original assignee: Guangzhou Huanya Cosmetic Science and Technology Co Ltd
Current assignee: Guangzhou Huanya Cosmetic Science and Technology Co Ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2022-04-08
Anticipated expiration: 2039-06-17
Also published as: CN110141541A

Abstract

The invention provides dandruff-removing itching-relieving scalp conditioning liquid and a preparation method and application thereof. The dandruff-removing itching-relieving scalp conditioning liquid adopts four plant extracts, effectively exerts four effects of dandruff-removing itching-relieving, bacteriostasis, sterilization, moisture retention and antioxidation, and simultaneously realizes timely and effective scalp dandruff-removing itching-relieving conditioning effect through mutual synergy.

Description

Dandruff-removing itching-relieving scalp conditioning liquid and preparation method and application thereof

Technical Field

The invention belongs to the field of daily cosmetics, and relates to a dandruff-removing and itching-relieving scalp conditioning liquid, and a preparation method and application thereof.

Background

Researches show that at present, in China, the scalp problems such as dandruff, head oil and head itch are the greatest demands of consumers, so that dandruff-removing and itching-relieving products occupy a large number of markets, but most of dandruff-removing and itching-relieving agents adopted by the dandruff-removing products on domestic and foreign markets are chemical synthetic substances such as Zinc Pyrithione (ZPT), piroctone Olamine (OCT) and the like, and the substances have a plurality of defects such as certain sensitization, irritation and instability and are easy to relapse after being stopped being used. With the popularity of environmental protection, low carbon, green and natural trend in recent years, products such as hair washing and hair care and the like are declared as plant anti-dandruff products on the market at present. However, according to survey, most of the products on the market which declare that plant dandruff removing is mainly chemical dandruff removing agents and is combined with a small amount of plant dandruff removing components, the products really use natural plant extracts to play an effective dandruff removing and itching relieving effect are very few, and the products which really realize the scalp conditioning effect of dandruff removing and itching on the market are few at present.

CN102429843A discloses a biological environment-friendly dandruff-removing and itching-relieving shampoo and a preparation method thereof, plant components such as chamomile essential oil are added in the shampoo, so that the shampoo has a good dandruff-removing and itching-relieving effect, but the added plant components are complex, and whether a long-term conditioning effect can be realized is unknown.

CN108403495A discloses a camellia extract and a Chinese herbal medicine cosmetic containing the camellia extract, the camellia extract added in the invention can effectively remove free radicals and has antioxidant and anti-aging effects, but the scalp itching relieving and dandruff removing effects are not directly researched.

CN108904402A discloses an anti-hair loss shampoo, wherein the formula of the shampoo contains 3-10% of anti-hair loss active ingredients in percentage by mass, and the anti-hair loss active ingredients comprise a grape seed extract, a witch hazel extract, a camellia extract and a chamomile extract. The added chamomile extract has the functions of diminishing inflammation, resisting allergy and sterilizing, the camellia extract has the effective functions of removing free radicals and resisting oxidation, but the itching and dandruff removing functions of the scalp are not directly researched by the formula, and the formula also has a general effect of improving the sebum leakage of the scalp and the smooth pores.

CN109223622A discloses a compound essential oil for reducing alopecia, which is prepared from the following components in parts by weight: 15-20 parts of rosemary essential oil, 12-15 parts of juniper chinensis wood essential oil, 10-12 parts of juniper berry essential oil, 10-15 parts of ylang-ylang essential oil, 12-15 parts of north non cedar bark absolute oil and 55-70 parts of plant base oil. The juniper berry essential oil added in the invention has the effects of sterilization and detoxification, but the added plant components are complex, the moisturizing capability is poor, and the antioxidant and anti-aging effects are not directly researched.

Therefore, the scalp conditioning solution which can remove dandruff, relieve itching, inhibit bacteria and sterilize in time and has the scalp conditioning effect of moisturizing and resisting oxidation is provided, and has important significance and wide market prospect in the field of daily cosmetics.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide the dandruff-removing itching-relieving scalp conditioning liquid, and the preparation method and the application thereof.

In order to achieve the purpose, the invention adopts the following technical scheme:

in a first aspect, the invention provides a dandruff-removing and itching-relieving scalp conditioning solution, which comprises chamomile essential oil, a camellia extract, a juniper berry extract and a kunzea leaf extract.

In the invention, the chamomile essential oil of the feverfew has stronger antioxidant effect, has good functions of soothing allergy, repairing sensitive skin, reducing fine red blood streak, reducing redness and the like, is rich in active ingredients such as flavone saponin, polysaccharide and volatile oil, has the effects of resisting oxidation, inflammation, allergy and virus, can quickly sooth red skin, and has good soothing effect on itchy skin; the camellia extract is extracted from flowers of camellia of Theaceae, contains abundant flavone, saponin, catechin, vitamin C, tannic acid, amino acid and other components, and has antibacterial, free radical resisting, antioxidant, oil secretion balancing, and scalp oil balance regulating effects; the juniper berry extract has prominent effects of skin purification, bacteriostasis and convergence, has the effect of detoxification, can effectively improve acne and blocked pores, and achieves the effects of deep cleaning, purification, improvement of sebum leakage of scalp and the like; the kunzea ericoides leaf extract has the capacity of reducing the amount of sebum produced by sebaceous glands and treating acne, and can quickly dredge pores under the synergistic effect of the camellia extract.

The dandruff-removing and itching-relieving scalp conditioning liquid contains chamomile essential oil, camellia extract, juniper berry extract and kunzea extract, all functional components play basic functions of the scalp conditioning liquid, and also show a synergistic effect unexpectedly, so that a chemical dandruff remover or a small amount of plant dandruff-removing components are added into a washing and protecting product effectively aiming at the dandruff-removing and itching-relieving product, the dandruff-removing and itching-relieving product has the advantages of relapse after stopping use, easy generation of drug resistance, imbalance of scalp microenvironment and microbial environment caused by the chemical dandruff-removing agent, more scalp problems and hair problems are caused, and the like, and meanwhile, the problem that the scalp itching problem is difficult to eradicate in time is solved. In conclusion, the invention adopts four plant extracts, can effectively play four roles of removing dandruff, relieving itching, inhibiting bacteria, sterilizing, preserving moisture and resisting oxidation, and simultaneously realize mutual synergy, thereby realizing timely and effective scalp removing dandruff, relieving itching and conditioning effects.

In the invention, the conditioning liquid comprises the following components in percentage by weight: 0.5-5.0% of chamomile essential oil, 0.5-5.0% of camellia extract, 0.5-5.0% of juniper berry extract and 0.5-5.0% of kunzea extract.

Preferably, the weight percentage of the chamomile essential oil in the conditioning liquid is 0.5-5.0%, for example, 0.5%, 0.6%, 0.8%, 1.0%, 1.2%, 1.4%, 1.6%, 1.8%, 2.0%, 2.2%, 2.4%, 2.6%, 2.8%, 3.0%, 3.2%, 3.4%, 3.6%, 3.8%, 4.0%, 4.2%, 4.4%, 4.6%, 4.8%, 5.0%.

Preferably, the camellia extract is 0.5-5.0% by weight in the conditioning solution, for example, 0.5%, 0.6%, 0.8%, 1.0%, 1.2%, 1.4%, 1.6%, 1.8%, 2.0%, 2.2%, 2.4%, 2.6%, 2.8%, 3.0%, 3.2%, 3.4%, 3.6%, 3.8%, 4.0%, 4.2%, 4.4%, 4.6%, 4.8%, 5.0%.

Preferably, the weight percentage of the juniper berry extract in the conditioning liquid is 0.5-5.0%, for example, 0.5%, 0.6%, 0.8%, 1.0%, 1.2%, 1.4%, 1.6%, 1.8%, 2.0%, 2.2%, 2.4%, 2.6%, 2.8%, 3.0%, 3.2%, 3.4%, 3.6%, 3.8%, 4.0%, 4.2%, 4.4%, 4.6%, 4.8%, 5.0%.

Preferably, the percentage by weight of the kunzea ericoides leaf extract in the conditioning liquid is 0.5-5.0%, for example, 0.5%, 0.6%, 0.8%, 1.0%, 1.2%, 1.4%, 1.6%, 1.8%, 2.0%, 2.2%, 2.4%, 2.6%, 2.8%, 3.0%, 3.2%, 3.4%, 3.6%, 3.8%, 4.0%, 4.2%, 4.4%, 4.6%, 4.8%, 5.0%.

In the present invention, the conditioning liquid further comprises any one or a combination of at least two of a penetration enhancer, a humectant or a fragrance.

Preferably, the penetration enhancer is 10-60% by weight of the dandruff-removing and itching-relieving scalp conditioning liquid, for example, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%.

Preferably, the penetration enhancer is any one or combination of at least two of ethanol, glycol and menthol, preferably ethanol.

In the present invention, the penetration enhancer can enhance or accelerate the penetration of the conditioning fluid through the skin, promoting the absorption of the benefit agent. The preferable penetration enhancer is ethanol, which can better promote the absorption of effective substances, has no damage and weak stimulation to skin, no allergy, stable physicochemical property, good compatibility with the conditioning solution containing four plant extracts, quick response and long action time.

Preferably, the weight percentage of the moisturizer in the dandruff relieving and itching scalp conditioning liquid is 0.01-5%, for example, 0.01%, 0.1%, 0.5%, 1.0%, 1.2%, 1.4%, 1.6%, 1.8%, 2.0%, 2.2%, 2.4%, 2.6%, 2.8%, 3.0%, 3.2%, 3.4%, 3.6%, 3.8%, 4.0%, 4.2%, 4.4%, 4.6%, 4.8%, 5.0%.

Preferably, the humectant is any one or a combination of at least two of panthenol, xylitol, hexylene glycol, butylene glycol, glycerin, macromolecular sodium hyaluronate, small molecular sodium hyaluronate or aloe extract.

Preferably, the humectant is a combination of panthenol, xylitol, and hexylene glycol.

In the invention, the moisturizing agent can achieve the effects of moisturizing, moistening, restoring skin elasticity and the like by absorbing and maintaining moisture. Especially panthenol and xylitol, which have high-efficiency mild moisturizing effect, and in addition, hexanediol is also used as an antiseptic substitute component in a preservative-free formula, so that the panthenol and the xylitol are both a humectant and have natural antiseptic effect. The humectant is cooperated with the four plant extracts in the invention to better realize the effects of moisturizing, cleaning, antioxidation, sterilization, relieving and grease balancing of the scalp.

Preferably, the humectant comprises 0.05 to 0.3 percent of panthenol, 0.01 to 0.3 percent of xylitol and 0.1 to 1.2 percent of hexanediol based on the total weight of the conditioning fluid.

Preferably, the weight percentage of said panthenol in said conditioning liquid is 0.05-0.3%, and may be, for example, 0.05%, 0.06%, 0.08%, 0.10%, 0.12%, 0.14%, 0.16%, 0.18%, 0.20%, 0.22%, 0.24%, 0.26%, 0.28%, 0.30%.

Preferably, the xylitol is present in the conditioning liquid in a weight percentage of 0.05-0.3%, which may be, for example, 0.05%, 0.06%, 0.08%, 0.10%, 0.12%, 0.14%, 0.16%, 0.18%, 0.20%, 0.22%, 0.24%, 0.26%, 0.28%, 0.30%.

Preferably, the weight percentage of said hexylene glycol in said conditioning liquid is 0.1-1.2%, and may be, for example, 0.10%, 0.15%, 0.20%, 0.25%, 0.30%, 0.35%, 0.40%, 0.45%, 0.50%, 0.55%, 0.60%, 0.65%, 0.70%, 0.75%, 0.80%, 0.85%, 0.90%, 1.0%, 1.2%.

Preferably, the weight percentage of the aromatic in the dandruff and itch removing scalp conditioning solution is 0.05% -0.15%, and may be, for example, 0.05%, 0.06%, 0.07%, 0.08%, 0.09%, 0.10%, 0.11%, 0.12%, 0.13%, 0.14%, 0.15%.

In the invention, the scalp conditioning liquid comprises the following components in percentage by weight: 0.5-5.0% of chamomile essential oil, 0.5-5.0% of camellia extract, 0.5-5.0% of juniper berry extract, 0.5-5.0% of kunzea leaf extract, 10-60% of penetration enhancer, 0.01-5.0% of humectant, 0.05-0.15% of aromatic and the balance of deionized water.

In the invention, the scalp conditioning liquid comprises the following components in percentage by weight: 10-60% of ethanol, 0.5-5.0% of chamomile essential oil, 0.5-5.0% of camellia extract, 0.5-5.0% of juniper berry extract, 0.5-5.0% of kunzea extract, 0.05-0.3% of panthenol, 0.01-0.3% of xylitol, 0.1-1.2% of hexanediol, 0.05-0.15% of aromatic and the balance of deionized water.

Preferably, the scalp conditioning liquid comprises the following components in percentage by weight: 30% of ethanol, 2.0% of chamomile essential oil, 2.0% of juniper berry extract, 2.0% of camellia extract, 2.0% of kunzea ericoides leaf extract, 0.15% of panthenol, 0.1% of xylitol, 1.0% of hexanediol, 0.1% of aromatic and the balance of deionized water.

Preferably, the scalp conditioning liquid comprises the following components in percentage by weight: 30% of ethanol, 2.5% of chamomile essential oil, 1.5% of juniper berry extract, 2.0% of camellia extract, 2.0% of kunzea ericoides leaf extract, 0.15% of panthenol, 0.1% of xylitol, 1.0% of hexanediol, 0.1% of aromatic and the balance of deionized water.

Preferably, the scalp conditioning liquid comprises the following components in percentage by weight: 30% of ethanol, 2.0% of chamomile essential oil, 2.0% of juniper berry extract, 1.5% of camellia extract, 2.5% of kunzea ericoides leaf extract, 0.15% of panthenol, 0.1% of xylitol, 1.0% of hexanediol, 0.1% of aromatic and the balance of deionized water.

Preferably, the scalp conditioning liquid comprises the following components in percentage by weight: 30% of ethanol, 2.5% of chamomile essential oil, 2.5% of juniper berry extract, 1.5% of camellia extract, 1.5% of kunzea ericoides leaf extract, 0.15% of panthenol, 0.1% of xylitol, 1.0% of hexanediol, 0.1% of aromatic and the balance of deionized water.

In a second aspect, the present invention provides a method for preparing the dandruff removing and itching relieving scalp conditioning liquid according to the first aspect, wherein the method for preparing the scalp conditioning liquid comprises the following steps: and mixing the chamomile essential oil, the juniper berry extract, the camellia extract and the kunzea ericoides leaf extract, and uniformly stirring to obtain the dandruff-removing and itching-relieving scalp conditioning liquid.

Preferably, the penetration enhancer, the chamomile essential oil, the juniper berry extract, the camellia extract and the kunzea ericoides leaf extract are mixed, the water is replenished, and the mixture is stirred uniformly to obtain the dandruff-removing itching-relieving scalp conditioning liquid.

Preferably, the penetration enhancer, the chamomile essential oil, the juniper berry extract, the camellia extract and the kunzea ericoides leaf extract are mixed, then the humectant and the aromatic are added, the moisture is complemented, and the mixture is stirred uniformly to obtain the dandruff-removing and itching-relieving scalp conditioning liquid.

In a third aspect, the invention provides the use of the dandruff removing and itching relieving scalp conditioning solution as described in the first aspect in a hair care product.

In the present invention, the conditioning solution can be added to the hair care product in an amount of 0.1 to 30% by weight, for example, 0.1%, 0.5%, 1%, 2%, 4%, 6%, 10%, 12%, 14%, 16%, 18%, 20%, 22%, 24%, 26%, 28%, 30%, preferably 15% by weight, based on the total weight of the hair care product.

In the invention, the hair care product comprises any one of shampoo, hair conditioner, hair film, hair oil or hair care spray, and is preferably shampoo.

Compared with the prior art, the invention has the following beneficial effects:

(1) the invention adopts four plant extracts, can effectively play four effects of removing dandruff, relieving itching, inhibiting bacteria, sterilizing, preserving moisture and resisting oxidation, and realizes timely and effective scalp removing dandruff, relieving itching and conditioning by mutual synergy: in the test process of the malassezia bacteriostasis effect, the diameter of the obtained bacteriostasis zone of the scalp conditioning liquid is up to 18.38 mm; when DPPH free radical scavenging capacity is adopted for testing, the DPPH scavenging rate of the antioxidant of the conditioning fluid reaches over 75 percent; the moisture content of the scalp can be greatly improved, and the moisture content of the scalp can still reach more than 23 percent after the scalp is used for 12 hours; the dandruff removing and itching relieving scalp conditioning liquid is found to be capable of conditioning scalp timely and effectively to achieve the effects of removing dandruff and relieving itching in practical tests, and is suitable for people of most ages.

(2) According to the dandruff-removing itching-relieving scalp conditioning liquid, flavonoid components contained in chamomile essential oil are antioxidant, anti-inflammatory and itching-relieving, sensitive and reddish skin is pacified quickly, water is supplemented mildly, and skin is relieved; the juniper berry extract is soft, clean, astringent and bactericidal, and improves the sebum microenvironment; the camellia extract and the kunzea extract effectively exert bacteriostatic and antibacterial effects; the combination of the high-efficiency mild moisturizing of the panthenol and the xylitol and the proper amount of ethanol promote the absorption of effective substances, and the effects of relieving itching, inhibiting bacteria, sterilizing, removing dandruff and conditioning scalp are realized in time.

(3) Due to extremely weak irritation, the dandruff-removing and itching-relieving scalp conditioning liquid can be used as the scalp conditioning liquid independently, and can also be applied to shampoo, hair conditioner, scalp essence and other hair washing, hair care and scalp care products.

Drawings

Fig. 1 is a graph showing the results of a scalp conditioning solution test for the ability to scavenge DPPH free radicals.

Fig. 2 is a statistical chart of scalp moisture content test results.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments. It should be understood by those skilled in the art that the examples are only for the understanding of the present invention and should not be construed as the specific limitations of the present invention.

The present invention is further illustrated by the following specific examples, which are intended to be illustrative only and not limiting. Unless otherwise specified, the contents described in the examples are all contents by mass percentage. The experimental method not specified for the specific conditions is usually carried out according to the conventional conditions or the conditions recommended by the manufacturers.

Examples 1 to 4

The dandruff-removing and itching-relieving scalp conditioning liquid of the present examples 1 to 4 is prepared from the components in the weight percentages shown in table 1 (i.e. the numbers in the table represent the weight percentages, for example, 30 represents 30%).

TABLE 1

The preparation method of the dandruff removing and itching relieving scalp conditioning solution described in any one of embodiments 1 to 4 comprises the following steps: mixing ethanol, flos Matricariae Chamomillae essential oil, juniper berry extract, flos Camelliae Japonicae extract, and Kunzea leaf extract, stirring, adding panthenol, xylitol, hexanediol and aromatic, adding water, and stirring.

Comparative examples 1 to 6

The scalp conditioning liquids of comparative examples 1 to 6 were prepared from the components in the weight percentages shown in table 2, and were prepared in the same manner as the dandruff-removing and itching-relieving scalp conditioning liquids described in any of examples 1 to 4 above.

TABLE 2

Example 5

Malassezia bacteriostasis test was performed on the scalp conditioning solutions of examples 1-5 and comparative examples 1-6 in this example

This example refers to the indication experiment of the Oxford cup bacteriostatic Ring recommended by the American clinical standards Committee (NCCLS): under the aseptic condition, sucking 200 mu L of indicator bacterium suspension liquid and uniformly coating the indicator bacterium suspension liquid on a plate culture medium; respectively dripping 0.1mL of sample solution prepared in examples 1-4 and comparative examples 1-6 into an Oxford cup, wherein the indicator bacterium is a culture medium of malassezia and is cultured for 48h at 37 ℃; and removing the oxford cup, accurately measuring the diameter of each inhibition zone by using a vernier caliper, and comparing the inhibition effects.

The concentrations of the experimental bacterial species and the bacterial liquid prepared from the bacterial species are shown in table 1. Malassezia bacteriostasis tests were performed on examples 1-4 and comparative examples 1-6, with comparative example 5 being used as a blank control. 0.1mL of each sample was tested and all samples tested are listed at 1.0X 10⁶The results of the analysis of the bacteriostatic effect at cfu/g bacterial liquid concentration are shown in Table 3.

TABLE 3

Test sample	Diameter/mm of bacteriostatic circle	Result judgment (whether or not there is bacteriostatic effect)
			Example 1	17.13	Has obvious bacteriostasis zone
Example 2	16.34	Has obvious bacteriostasis zone
			Example 3	17.76	Has obvious bacteriostasis zone
Example 4	18.38	Has obvious bacteriostasis zone
			Comparative example 1	12.86	Has certain bacteriostasis function
Comparative example 2	15.03	Has obvious bacteriostasis zone
			Comparative example 3	15.34	Has obvious bacteriostasisRing
Comparative example 4	13.31	Has certain bacteriostasis function
			COMPARATIVE EXAMPLE 5 (blank control)	5.85	Weak bacteriostasis
Comparative example 6	15.11	Has obvious bacteriostasis zone

The data in table 3 show that examples 1 to 4 have obvious malassezia inhibition effect, and comparative example 2 and comparative example 3 also have good inhibition effect, which indicates that the independent chamomile essential oil and juniper berry extract also have certain malassezia inhibition effect, but the independent plant extract has lower inhibition effect than the conditioning solution containing four plant extracts in examples 1 to 4; meanwhile, for comparative example 6 lacking the kunzea ericoides leaf extract, a certain bacteriostatic action exists, but the effect is not as good as that of the samples in examples 1-4, which shows that a system formed by the chamomile essential oil, the juniper berry extract and the camellia extract in cooperation with the kunzea ericoides leaf extract can more effectively play a synergistic effect so as to present a better malassezia bacteriostatic action, particularly, the malassezia bacteriostatic actions of examples 3 and 4 are the most excellent, and the diameters of bacteriostatic circles can respectively reach 17.76mm and 18.38 mm.

Example 6

In this example, the scalp conditioning solutions of examples 1 to 4 and comparative examples 1 to 6 were subjected to DPPH radical scavenging test

The test principle is as follows: DPPH is a stable organic radical with the highest absorption peak at 519nm, which, when added to an ethanol solution, exhibits a deep purple color, and when a certain amount of antioxidant is added, the absorbance value of the antioxidant at 519nm after color lightening caused by DPPH scavenging can be determined. And (3) carrying out quantitative analysis by adopting a spectrophotometry method to detect the scavenging condition of free radicals so as to evaluate the capability of the active ingredients with antioxidant effects in the product for scavenging the free radicals, wherein the higher the scavenging rate is, the stronger the capability of the active ingredients for scavenging the free radicals is, and the DPPH scavenging rate of a blank sample is 0. Finally, the result of the scalp conditioning solution on DPPH free radical scavenging ability test is obtained, as shown in figure 1.

The data in fig. 1 show that the dandruff removing and itching relieving scalp conditioning liquid containing four plant extracts in examples 1 to 4 has strong capability of scavenging free radicals, and the scalp conditioning liquids in examples 1 and 4 have better advantages in scavenging free radicals. The comparative example 1 can also play a good role in scavenging free radicals, and the chamomile essential oil has a good role in scavenging free radicals; comparative example 6 scalp conditioning solution without kunzea ericoides leaf extract has stronger radical scavenging action but weaker scavenging action than those of scalp conditioning solutions of examples 1-4, which shows that kunzea ericoides leaf extract can cooperate with chamomile essential oil, juniper berry extract and camellia extract to enhance the radical scavenging ability of the system; the free radical scavenging ability of the systems in the embodiments 1 to 4 is generally higher than that of the systems in the comparative examples 1 to 6, which shows that the systems have better advantage in scavenging free radicals after being applied to scalp conditioning liquid, and the free radical scavenging effect of the compounded four substances, namely chamomile essential oil, juniper berry extract, camellia extract and kunzea ericoides leaf extract, is better than that of the free radical scavenging effect of the compound four substances which are used alone or lack of one component, so that the synergistic effect is achieved.

Example 7

In this example, comparative evaluation of the dandruff-removing and itching-relieving effects was conducted on the scalp conditioning liquids of examples 1 to 4 and comparative examples 1 to 6

The scalp spray test is carried out on 270 volunteers with the problems of head itching or/and scurf by using the scalp conditioning liquids of examples 1-4 and comparative examples 1-6, the scalp spray test lasts for 2 months, the scalp is sprayed every day, the left symmetrical area is used as a comparative example 5, the right scalp conditioning liquid for removing scurf and relieving itching is used for comparison, 30 people in each group are evaluated and recorded for the head itching and scurf conditions after the scalp conditioning liquids are used for two months, and the comparison and analysis show that the scurf and relieving itching scalp conditioning liquids of the volunteers improve the problems of the head itching and the head itching, and the results are shown in table 4.

TABLE 4

Example 8

Scalp moisturizing ability test

In the test, moisturizing efficacy tests are carried out on examples 1-4 and comparative examples 1-6 according to the evaluation guidelines of moisturizing efficacy of cosmetics in the light industry standard; the principle of the method is as follows: the capacitance method is used for measuring the moisture content of the human skin horny layer, and is based on the obvious difference of dielectric constants of water and other substances, the capacitance values of the measured skin are different according to the moisture content of the human skin horny layer, and the parameters can represent the moisture content of the scalp.

Adopting a civil survey grading method, selecting 130 people of 25-65 years old as trial objects, wherein the tested parts have no abnormality, the whole testing process is carried out in a constant-temperature and constant-humidity laboratory, the room temperature is 20 +/-2 ℃, and the humidity is 50-60%; the scalp conditioning solutions of examples 1-4 were used in 4 groups of 30 persons each; half-head comparison method, left: common aqueous agent conditioning solution without chamomile essential oil, juniper berry extract, camellia extract and kunzea extract (the addition amount of other raw materials is consistent with the formula of scalp conditioning solution in the application example), right: examples 1-4 scalp conditioning solutions; scalp moisture retention test was performed using a skin moisture tester CM825 from CK, germany; the larger the value, the higher the water content of the stratum corneum; the moisture content of skin is measured at 1h, 4h, 8h and 12h after application, the average value is plotted, and a statistical chart of the results of the moisture content of the scalp measured at different times is shown in figure 2.

As can be seen from fig. 2, with the increase of time, the moisture content of the tested area of the blank control group does not change significantly, while the moisture content test results of the scalp conditioning solutions of examples 1 to 4 in 12 hours after use show that the scalp conditioning solutions of examples 1 to 4 have a great improvement in the aspect of maintaining the moisture content of the scalp, and the moisture contents of examples 1 to 4 are generally higher than those of comparative examples 1 to 6, which indicates that after the scalp conditioning solutions are applied, the moisture content of the scalp is increased and has a certain moisture retention property, and the moisture retention effects of the four substances, namely, the chamomile essential oil, the juniper berry extract, the camellia extract and the kunzea ericoides leaf extract, are better than those of the four substances which are used alone or lack of one component, so that a synergistic effect is achieved. Examples 2 and 4 had better scalp moisturizing effect, and the results of the moisture content test in 12 hours after use were 27.6% and 26.3%, respectively.

Example 9

Scalp conditioning fluid irritation-erythrocyte hemolysis test

Erythrocyte hemolysis test method: the Red blood cell test RBC is adopted to replace a rabbit eye irritation test to evaluate the eye irritation of the scalp conditioning fluid, and the basic principle is to evaluate the eye irritation of a test object by measuring the damage (hemolysis) of a chemical to a cell membrane and the damage (hemoglobin denaturation) degree of hemoglobin. The RBC experiment is mainly used for eye irritation research of cosmetics products, raw materials and other chemicals internationally. Therefore, the invention determines the mildness of the formula through an erythrocyte hemolysis test method and compares the mildness to evaluate the mildness of the product. The hemoglobin denaturation rate (DI) was calculated from the ratio of the weight concentration of the test substance (HC50, mg/L) at 410nm, which causes hemolysis of 50% red blood cells, to the A value at 575 and 540nm, and the ratio L/D (L50/DI) was calculated for 2 variables, and the L/D values obtained from examples 1 to 4 provided by the present invention and the shampoos provided in comparative examples 1 to 6 were tested and shown in Table 5.

TABLE 5

Test article	L/D	Level of irritation
			Example 1	86	Micro-irritation
Example 2	94	Micro-irritation
			Example 3	79	Micro-irritation
Example 4	67	Micro-irritation
			Comparative example 1	37	Micro-irritation
Comparative example 2	56	Micro-irritation
			Comparative example 3	32	Micro-irritation
Comparative example 4	24	Micro-irritation
			COMPARATIVE EXAMPLE 5 (blank control)	9	Mild irritation
Comparative example 6	69	Micro-irritation

Cell hemolysis experimental data show that scalp conditioning liquid systems formed by chamomile essential oil, juniper berry extract, camellia extract and kunzea extract are low in irritation, the irritation of the four substances is obviously lower than that of a single extract when the four substances exist simultaneously, and the kunzea extract and other three plant extracts play a good synergistic effect in the aspect of reducing irritation.

In summary, the dandruff removing and itching relieving scalp conditioning liquid formed by the chamomile essential oil, the juniper berry extract, the camellia extract and the kunzea ericoides leaf extract has the effects of removing dandruff, relieving itching, inhibiting malassezia, resisting oxidation and preserving moisture, and meanwhile, the chamomile essential oil, the juniper berry extract, the camellia extract and the kunzea ericoides leaf extract have strong synergistic effect.

The applicant states that the present invention is illustrated in detail by the above embodiments, but the present invention is not limited to the above embodiments, that is, the present invention is not meant to be implemented by relying on the above embodiments. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.

Claims

1. The dandruff-removing and itching-relieving scalp conditioning liquid is characterized by comprising the following components in percentage by weight: 0.5-5.0% of chamomile essential oil, 0.5-5.0% of camellia extract, 0.5-5.0% of juniper berry extract, 0.5-5.0% of kunzea leaf extract, 10-60% of penetration enhancer, 0.01-5.0% of humectant, 0.05-0.15% of aromatic and the balance of deionized water.

2. The dandruff-removing and itching-relieving scalp conditioning solution according to claim 1, wherein the penetration enhancer is any one or a combination of at least two of ethanol, ethylene glycol and menthol.

3. The dandruff-removing and antipruritic scalp conditioning liquid according to claim 2, wherein the penetration enhancer is ethanol.

4. The dandruff-removing and itching-relieving scalp conditioning solution according to claim 1, wherein the moisturizer is any one or a combination of at least two of panthenol, xylitol, hexylene glycol, butylene glycol, glycerin, macromolecular sodium hyaluronate, small molecular sodium hyaluronate or aloe extract.

5. The dandruff-removing, antipruritic scalp conditioning liquid according to claim 4, wherein the moisturizer is a combination of panthenol, xylitol and hexylene glycol.

6. The dandruff-removing and itching-relieving scalp conditioning liquid according to claim 5, wherein the moisturizer comprises 0.05 to 0.3 percent of panthenol, 0.01 to 0.3 percent of xylitol and 0.1 to 1.2 percent of hexanediol by weight based on the total weight of the conditioning liquid.

7. The dandruff-removing and itching-relieving scalp conditioning liquid according to claim 2 or 6, which comprises the following components in percentage by weight: 10-60% of ethanol, 0.5-5.0% of chamomile essential oil, 0.5-5.0% of camellia extract, 0.5-5.0% of juniper berry extract, 0.5-5.0% of kunzea extract, 0.05-0.3% of panthenol, 0.01-0.3% of xylitol, 0.1-1.2% of hexanediol, 0.05-0.15% of aromatic and the balance of deionized water.

8. The dandruff-removing and itching-relieving scalp conditioning liquid according to claim 2 or 6, which comprises the following components in percentage by weight: 30% of ethanol, 2.0% of chamomile essential oil, 2.0% of juniper berry extract, 2.0% of camellia extract, 2.0% of kunzea ericoides leaf extract, 0.15% of panthenol, 0.1% of xylitol, 1.0% of hexanediol, 0.1% of aromatic and the balance of deionized water.

9. The dandruff-removing and itching-relieving scalp conditioning liquid according to claim 2 or 6, which comprises the following components in percentage by weight: 30% of ethanol, 2.5% of chamomile essential oil, 1.5% of juniper berry extract, 2.0% of camellia extract, 2.0% of kunzea ericoides leaf extract, 0.15% of panthenol, 0.1% of xylitol, 1.0% of hexanediol, 0.1% of aromatic and the balance of deionized water.

10. The dandruff-removing and itching-relieving scalp conditioning liquid according to claim 2 or 6, which comprises the following components in percentage by weight: 30% of ethanol, 2.0% of chamomile essential oil, 2.0% of juniper berry extract, 1.5% of camellia extract, 2.5% of kunzea ericoides leaf extract, 0.15% of panthenol, 0.1% of xylitol, 1.0% of hexanediol, 0.1% of aromatic and the balance of deionized water.

11. The dandruff-removing and itching-relieving scalp conditioning liquid according to claim 2 or 6, which comprises the following components in percentage by weight: 30% of ethanol, 2.5% of chamomile essential oil, 2.5% of juniper berry extract, 1.5% of camellia extract, 1.5% of kunzea ericoides leaf extract, 0.15% of panthenol, 0.1% of xylitol, 1.0% of hexanediol, 0.1% of aromatic and the balance of deionized water.

12. A method for preparing the dandruff-removing and itching-relieving scalp conditioning liquid according to any one of claims 1 to 11, which comprises the following steps: and mixing the penetration enhancer, the chamomile essential oil, the juniper berry extract, the camellia extract and the kunzea ericoides leaf extract, then adding the humectant and the aromatic, supplementing water, and uniformly stirring to obtain the dandruff-removing itching-relieving scalp conditioning liquid.

13. Use of an antidandruff antipruritic scalp conditioning lotion according to any one of claims 1 to 11 for the preparation of a hair care product.

14. The use according to claim 13, wherein the conditioning solution is added to the hair care product in an amount of 0.1 to 30% by weight based on the total weight of the hair care product.

15. The use according to claim 14, wherein the conditioning solution is added to the hair care product in an amount of 15% by weight based on the total weight of the hair care product.

16. Use according to any of claims 13 to 15, wherein the hair care product comprises any of a shampoo, a conditioner, a hair film, a hair oil or a hair spray.

17. Use according to claim 16, wherein the hair care product is a shampoo.