CN112656732A

CN112656732A - Dandruff-removing and itching-relieving shampoo and preparation method thereof

Info

Publication number: CN112656732A
Application number: CN202110037343.5A
Authority: CN
Inventors: 徐妃群; 李金中
Original assignee: Guangzhou Yakou Cosmetics Co ltd
Current assignee: Guangzhou Yakou Cosmetics Co ltd
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2021-04-16
Anticipated expiration: 2041-01-12
Also published as: CN112656732B

Abstract

The application relates to the technical field of cosmetics, and in particular relates to an anti-dandruff and itching-relieving shampoo and a preparation method thereof. The dandruff-removing and itching-relieving shampoo comprises the following components in percentage by weight: 5-25% of main surfactant, 1-5% of cosurfactant, 2-10% of mild surfactant, 0.1-5% of water-soluble grease, 0.5-4% of conditioner, 0.2-3% of sodium chloride, 0.1-3% of citric acid, 0.2-3% of sodium citrate, 1-4% of anti-dandruff and anti-itching composition and the balance of deionized water. The dandruff-removing and itching-relieving shampoo is prepared from main raw materials such as a main surfactant, a cosurfactant, a mild surfactant and the like. By the synergistic compounding of the five components for removing dandruff and relieving itching, the effects of comprehensively, durably, mildly removing dandruff and relieving itching without damaging scalp are achieved. The shampoo product has good cleaning and nursing effects, has the functions of removing dandruff for a long time, controlling oil, relieving itching, relaxing scalp and the like, and reduces the irritation of the shampoo while ensuring the dandruff removing effect.

Description

Dandruff-removing and itching-relieving shampoo and preparation method thereof

Technical Field

The application relates to the technical field of cosmetics, and in particular relates to an anti-dandruff and itching-relieving shampoo and a preparation method thereof.

Background

The shampoo is an essential daily necessity in life, and with the continuous improvement of living standard, people have higher and higher requirements on the shampoo. It is not only required to have good cleaning effect, but also required to have nursing and conditioning functions. China is the country with the highest shampoo production and sale in the world at present, the brands of shampoos in domestic markets exceed 3000, the market scale of the shampoos is estimated to exceed 200 million yuan, the annual average purchase frequency of household shampoos is 5, and the yield of finished Chinese shampoos reaches 40 million tons.

The following principles are referenced for the general shampoo formulation: the decontamination capability is moderate, and the foam is uniform and rich; the appearance is pleasant, the pearl effect is achieved, and the fragrance is fragrant and charming; the consistency is moderate; the product is slightly acidic, the pH value is controlled to be 6-7, and the product has no irritation to skin; has effects in removing dandruff, relieving itching, and caring hair; the conditioning and nursing performance is good, and the hair is smooth and soft and is easy to comb; has good moisture retention and can prevent hair from drying. From the viewpoint of raw materials of products, these effects are generally applied to these raw materials: the detergent is prepared from an anionic surfactant, a zwitterionic surfactant, a nonionic surfactant, glycol stearate, a cationic conditioner, emulsified silicone oil, a humectant, an acid-base regulator, an anti-dandruff agent, a thickening agent, a preservative, essence and the like, wherein different systems and functional points are different, and the choice of raw materials is different.

The problems of heavy mental stress, irregular work and rest, frequent insomnia and the like of people in modern society are frequent, and meanwhile, people come into contact with various chemical substances in life, and the health problem of hair also presents the trend of diversification and complication. Among them, dandruff increase, scalp itching, hair loss, dry and yellow hair and hair damage are the most common hair problems. Dandruff is medically known as pityriasis capitis, a fungal skin disease caused by malassezia. The mass propagation of malassezia on the scalp causes the hyperproliferation of the stratum corneum of the scalp, thereby promoting the abnormal falling of stratum corneum cells in the form of white or gray scales, and the fallen scales are the dandruff. The appearance of human body is seriously influenced by the occurrence of dandruff, the dandruff rises to the level of etiquette, and the normal life of people is also seriously influenced by scalp itching caused by dandruff. At present, the hair washing and cleaning products for removing dandruff and relieving itching are various in types, wherein most of the hair washing and cleaning products use a single antifungal chemotherapeutic drug as an active ingredient, and can cause damage to the scalp after long-term use. Some shampoo cleaning products also have a severe stimulation effect on the scalp, so that the nutrition of the hair is lost, the conditioning effect is not ideal, and the shampoo cleaning products do not have the function of conditioning the hair. Therefore, the search for the multi-effect dandruff-removing and itching-relieving shampoo which has the characteristics of dandruff-removing and itching-relieving effects, no irritation, oil control, refreshing, scalp conditioning and the like is a research hotspot at present.

Disclosure of Invention

The invention aims to provide the anti-dandruff and itching-relieving shampoo which has good cleaning and nursing effects, has the functions of long-acting dandruff removal, oil control and itching relief, scalp soothing and the like, reduces the irritation of the shampoo while ensuring the anti-dandruff effect, and avoids the defects of large irritation, poor conditioning effect and the like commonly existing in the common anti-dandruff shampoo.

In order to solve the technical problems, the invention adopts the technical scheme that:

an anti-dandruff itching-relieving shampoo comprises the following components in percentage by weight: 5-25% of main surfactant, 1-5% of cosurfactant, 2-10% of mild surfactant, 0.1-5% of water-soluble grease, 0.5-4% of conditioner, 0.2-3% of sodium chloride, 0.1-3% of citric acid, 0.2-3% of sodium citrate, 1-4% of anti-dandruff and anti-itching composition and the balance of deionized water.

Preferably, the dandruff removing and itching relieving shampoo consists of the following components in percentage by weight: 10-20% of main surfactant, 2-4% of cosurfactant, 4-6% of mild surfactant, 0.5-4% of water-soluble grease, 1-3% of conditioner, 1-2% of sodium chloride, 0.2-0.5% of citric acid, 0.3-0.6% of sodium citrate, 1.5-2.5% of anti-dandruff and anti-itching composition and the balance of deionized water.

Preferably, the dandruff removing and itching relieving shampoo consists of the following components in percentage by weight: 15% of main surfactant, 3% of cosurfactant, 5% of mild surfactant, 2% of water-soluble grease, 2% of conditioner, 1.5% of sodium chloride, 0.3% of citric acid, 0.4% of sodium citrate, 2% of anti-dandruff and anti-itching composition and the balance of deionized water.

Preferably, the primary surfactant is selected from ammonium lauryl sulfate and/or sodium laureth sulfate.

Preferably, the co-surfactant is selected from cocamide MEA and/or cocamide DEA.

Preferably, the mild surfactant is selected from decyl glucoside, sodium lauroyl sarcosinate, sodium lauroyl amphoacetate, cocamidopropyl betaine, sodium cocamidopropionate, sodium methylcocoyltaurate and/or cocamidopropyl hydroxysultaine.

Preferably, the water-soluble grease is selected from PEG-7 olive oil ester, water-soluble macadamia nut oil, PEG-7 glyceryl cocoate and/or hydrogenated jojoba oil.

Preferably, the conditioning agent is selected from sodium xylene sulfonate, guar hydroxypropyl trimonium chloride, polyquaternium-7, polyquaternium-10 and/or polyquaternium-67.

Preferably, the anti-dandruff and antipruritic composition consists of 0.3-1% of piroctone olamine salt (OCT), 0.2-0.5% of Zinc Pyrithione (ZPT), 0.2-1.2% of fructus cnidii extract, 0.25-1.2% of radix sophorae flavescentis extract and 0.05-0.1% of cymene pentaol.

Further, the invention also provides a preparation method of the dandruff-removing and itching-relieving shampoo, which comprises the following steps:

(1) weighing a main surfactant, a cosurfactant, a mild surfactant, sodium citrate and a proper amount of deionized water according to the weight ratio, heating and stirring uniformly, and keeping the constant temperature at 70-75 ℃;

(2) weighing piroctone olamine salt (OCT) according to the weight ratio, dissolving in a proper amount of deionized water in advance, adding into the solution obtained in the step (1), stirring uniformly, and keeping the constant temperature at 75-85 ℃;

(3) weighing water-soluble grease and a conditioner according to the weight ratio, dissolving the water-soluble grease and the conditioner in advance by using deionized water, adding the mixture into the solution obtained in the step (2), uniformly stirring the mixture, and keeping the constant temperature of 45-50 ℃;

(4) weighing Zinc Pyrithione (ZPT), fructus Cnidii extract, radix Sophorae Flavescentis extract and cymene pentaol according to weight ratio, adding into the solution obtained in step (3), stirring, and keeping constant temperature at 40-45 deg.C;

(5) and (4) adding sodium chloride into the solution obtained in the step (4) to adjust the viscosity, adding citric acid to adjust the pH value to 6-7, complementing the weight with deionized water, and uniformly stirring to obtain the water-soluble glass.

Piroctone olamine salt (OCT) is the only antidandruff and antipruritic agent which can be used for no-clean hair products so far, has broad-spectrum killing effect on fungi and mould and has good treatment effect on tinea pedis and tinea manus. Can be used as antiseptic in cosmetics and bactericide in soap, and has thickening effect. The unique properties of piroctone olamine are mainly shown in: the effects of removing dandruff and relieving itching are better than those of similar products; the dissolving performance and the compounding performance are excellent, and the phenomenon of precipitation or layering can not occur when the cosmetic raw material is mixed; the dandruff removing agent has unique mechanism and extremely low irritation, does not cause alopecia or broken hair, and has better safety than similar dandruff removing and itching relieving products.

Zinc Pyrithione (ZPT) is used as an anti-dandruff agent and a bactericide in shampoo, and is widely used for preparing anti-dandruff shampoo. Is suitable for skin care products, shampoo and skin care, and can also be used as adhesives, building coatings, paint vehicles and the like. The zinc pyrithione is a high-quality anti-flaking agent and anti-seborrheic agent, can effectively kill fungus causing dandruff, has the effects of relieving itching, removing dandruff, reducing hair loss, slowing down the generation of white hair and the like, and is a high-efficiency and safe itching-relieving and dandruff-removing agent. The shampoo can improve the product grade after being added with the components, and meets the high requirements of consumers on shampoo products.

Fructus Cnidii is a plant also called as wild carrot seed. The fructus Cnidii extract is extracted from fruit of fructus Cnidii of Umbelliferae, and has effects of clearing heat, eliminating dampness, dispelling pathogenic wind and relieving itching, and its effective components contain pinene, isovalerian borneol ester, parsley methyl ether, dihydrocarveol, bergapten, osthole, and isoanisic apigenin. Can be used as additive for health products and functional beverages.

The radix Sophorae Flavescentis extract is an alkaloid extracted from radix Sophorae Flavescentis of Leguminosae, and comprises matrine, oxymatrine, and anageine. The raw material has tough root, coarse fibrous cross section, yellowish white color, light smell and bitter taste. Radix Sophorae Flavescentis is cold in nature, and has effects of clearing heat, eliminating dampness, and killing parasites. The sophora flavescens bath can clear damp heat in lower jiao, kill parasites and relieve itching, has good relieving effect on skin pruritus, can balance grease secretion, dredge and astringe pores, and clear toxin impurities in skin. The skin care cream contains rich herbal nutrition, promotes the growth and repair of damaged vascular nerve cells, restores the activity of subcutaneous capillary cells, makes the skin compact and smooth, and plays a role in beautifying and protecting the skin.

The cymene pentaol is a safe broad-spectrum high-efficiency bactericide which can contact with mucosa, has proved to have excellent efficacy in various skin care, and can inhibit the oxidation of products. The cymene pentaol is widely applied to antibacterial and anti-mite products in the fields of cosmetics, medical pharmacy and industry. The product characteristics are as follows: no special smell and no stimulation; broad spectrum and high efficiency, and has stronger sterilization capability; has stronger oxidation resistance; the safety is high, and the effect is mild; has no special incompatibility. The cymene-5-alcohol and the compound plant anti-allergy agent are used for efficiently resisting bacteria and diminishing inflammation, and quickly relieving inflammation, red swelling and the like. In addition, it also has effects of preventing acne and preventing acne deterioration.

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

the dandruff-removing and itching-relieving shampoo provided by the invention is prepared from main raw materials such as a main surfactant, a cosurfactant, a mild surfactant and the like, and the skin irritation is effectively reduced and the cleaning and decontamination effects are improved through reasonable compounding of various types of surfactants. The shampoo is added with water-soluble grease which has good compatibility with human hair and proper adsorption capacity and a plurality of cationic hair conditioners, thereby effectively improving the conditioning characteristic of the hair. The anti-dandruff and anti-itching ingredient is formed by combining piroctone Olamine (OCT), Zinc Pyrithione (ZPT), a common cnidium fruit extract, a lightyellow sophora root extract and cymene pentaol in a specific proportion, and the effects of comprehensively, durably, mildly, anti-dandruff and anti-itching without damaging scalp are achieved through the synergistic compounding of the five anti-dandruff and anti-itching ingredients. The shampoo product disclosed by the invention has good cleaning and nursing effects, has the functions of removing dandruff for a long time, controlling oil, relieving itching, relaxing scalp and the like, reduces the irritation of the shampoo while ensuring the dandruff removing effect, avoids the defects of large irritation and poor conditioning effect commonly existing in the common dandruff removing shampoo, and expands the application range. The shampoo provided by the invention is simple in preparation process, avoids the complex preparation process of the shampoo in the prior art, and can effectively reduce the production cost.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The materials, reagents and the like used are all commercially available reagents and materials unless otherwise specified.

Example 1

An anti-dandruff itching-relieving shampoo comprises the following components in percentage by weight: 20% of lauryl alcohol sulfate ammonium salt, 4% of cocamide MEA (membrane electrode assembly), 2% of decyl glucoside, 6% of sodium lauroyl sarcosinate, 2% of PEG-7 olive oil ester, 1% of guar hydroxypropyl trimethyl ammonium chloride, 0.5% of sodium chloride, 0.5% of citric acid, 0.5% of sodium citrate, 1% of an anti-dandruff and anti-itching composition and the balance of deionized water.

The anti-dandruff and anti-itching composition consists of 0.3 percent of piroctone olamine salt (OCT), 0.2 percent of Zinc Pyrithione (ZPT), 0.2 percent of fructus cnidii extract, 0.25 percent of radix sophorae flavescentis extract and 0.05 percent of cymene pentaol.

The preparation method of the dandruff-removing and itching-relieving shampoo comprises the following steps:

(1) weighing ammonium lauryl sulfate, coconut oil amide MEA, decyl glucoside, sodium lauroyl sarcosinate, sodium citrate and a proper amount of deionized water according to the weight ratio, heating and stirring uniformly, and keeping the constant temperature at 70 ℃;

(2) weighing piroctone olamine salt (OCT) according to the weight ratio, dissolving the OCT in a proper amount of deionized water in advance, adding the dissolved OCT into the solution obtained in the step (1), stirring uniformly, and keeping the constant temperature at 85 ℃;

(3) weighing PEG-7 olive oil ester and guar gum hydroxypropyl trimethyl ammonium chloride according to the weight ratio, dissolving in advance by deionized water, adding into the solution obtained in the step (2), stirring uniformly, and keeping the constant temperature at 50 ℃;

(4) weighing Zinc Pyrithione (ZPT), fructus Cnidii extract, radix Sophorae Flavescentis extract and cymene pentaol according to weight ratio, adding into the solution obtained in step (3), stirring, and keeping constant temperature at 45 deg.C;

(5) and (4) adding sodium chloride into the solution obtained in the step (4) to adjust the viscosity, adding citric acid to adjust the pH value to 6, complementing the weight with deionized water, and uniformly stirring to obtain the water-based paint.

Example 2

An anti-dandruff itching-relieving shampoo comprises the following components in percentage by weight: 10% of sodium lauryl polyoxyethylene ether sulfate, 10% of cocamide DEA 2%, 3% of sodium lauroamphoacetate, 3% of sodium cocoamidopropionate, 5% of water-soluble macadamia nut oil, 73% of polyquaternary ammonium salt, 1.5% of sodium chloride, 1% of citric acid, 0.5% of sodium citrate, 4% of an anti-dandruff and anti-itching composition and the balance of deionized water.

The anti-dandruff and anti-itching composition consists of 1 percent of piroctone olamine salt (OCT), 0.5 percent of Zinc Pyrithione (ZPT), 1.2 percent of fructus cnidii extract, 1.2 percent of radix sophorae flavescentis extract and 0.1 percent of cymene pentaol.

(1) weighing sodium lauryl polyoxyethylene ether sulfate, cocamide DEA, sodium lauroamphoacetate 3, sodium cocamidopropionate, sodium citrate and a proper amount of deionized water according to the weight ratio, heating and stirring uniformly, and keeping the constant temperature at 75 ℃;

(2) weighing piroctone olamine salt (OCT) according to the weight ratio, dissolving the OCT in a proper amount of deionized water in advance, adding the dissolved OCT into the solution obtained in the step (1), stirring uniformly, and keeping the constant temperature at 75 ℃;

(3) weighing water-soluble macadamia nut oil and polyquaternium-7 according to the weight ratio, dissolving in advance by using deionized water, adding into the solution obtained in the step (2), stirring uniformly, and keeping the constant temperature at 45 ℃;

(4) weighing Zinc Pyrithione (ZPT), fructus Cnidii extract, radix Sophorae Flavescentis extract and cymene pentaol according to weight ratio, adding into the solution obtained in step (3), stirring, and keeping constant temperature at 40 deg.C;

(5) and (4) adding sodium chloride into the solution obtained in the step (4) to adjust the viscosity, adding citric acid to adjust the pH value to 7, complementing the weight with deionized water, and uniformly stirring to obtain the water-soluble glass.

Example 3

An anti-dandruff itching-relieving shampoo comprises the following components in percentage by weight: 7.5% of lauryl alcohol sulfate ammonium salt, 7.5% of sodium lauryl polyoxyethylene ether sulfate, 1.5% of cocamide MEA, 1.5% of cocamide DEA, 1% of cocamidopropyl betaine, 1% of sodium methyl cocoyl taurate, 1% of cocamidopropyl hydroxysultaine, 1.5% of PEG-7 glyceryl cocoate, 1.5% of hydrogenated jojoba oil, 101% of polyquaternary ammonium salt, 671% of polyquaternary ammonium salt, 1.5% of sodium chloride, 0.3% of citric acid, 0.4% of sodium citrate, 3% of an anti-dandruff and anti-itching composition and the balance of deionized water.

The anti-dandruff and anti-itching composition consists of 0.8 percent of piroctone olamine salt (OCT), 0.4 percent of Zinc Pyrithione (ZPT), 0.9 percent of fructus cnidii extract, 0.82 percent of radix sophorae flavescentis extract and 0.08 percent of cymene pentaol.

(1) weighing ammonium lauryl sulfate, sodium lauryl polyoxyethylene ether sulfate, cocamide MEA, cocamide DEA, cocamidopropyl betaine, sodium methyl cocoyl taurate, cocamidopropyl hydroxysultaine, sodium citrate and a proper amount of deionized water according to the weight ratio, heating and stirring uniformly, and keeping the constant temperature at 75 ℃;

(2) weighing piroctone olamine salt (OCT) according to the weight ratio, dissolving the OCT in a proper amount of deionized water in advance, adding the dissolved OCT into the solution obtained in the step (1), stirring uniformly, and keeping the constant temperature at 80 ℃;

(3) weighing hydrogenated jojoba oil, polyquaternium-10 and polyquaternium-67 according to the weight ratio, dissolving in deionized water in advance, adding into the solution obtained in the step (2), stirring uniformly, and keeping the constant temperature at 48 ℃;

(4) weighing Zinc Pyrithione (ZPT), fructus Cnidii extract, radix Sophorae Flavescentis extract and cymene pentaol according to weight ratio, adding into the solution obtained in step (3), stirring, and keeping constant temperature at 42 deg.C;

(5) and (4) adding sodium chloride into the solution obtained in the step (4) to adjust the viscosity, adding citric acid to adjust the pH value to 6.5, complementing the weight with deionized water, and uniformly stirring to obtain the water-based paint.

Comparative example 1

Compared with example 1, the only difference is that the anti-dandruff and anti-itching composition consists of 0.6% of piroctone olamine salt (OCT) and 0.4% of Zinc Pyrithione (ZPT).

Comparative example 2

Compared with example 1, the difference is only that the anti-dandruff and anti-itching composition consists of 0.4 percent of fructus cnidii extract, 0.5 percent of radix sophorae flavescentis extract and 0.1 percent of cymene pentaol.

Bacteriostatic effect of liquid shampoo on malassezia

Dandruff is a phenomenon of massive desquamation caused by excessive proliferation of scalp keratinocytes, and malassezia is one of the important factors causing dandruff production. The mass multiplication of malassezia on the scalp causes excessive proliferation of the stratum corneum of the scalp, thereby promoting abnormal shedding of stratum corneum cells in the form of white or gray scales. Dandruff build-up is a mild manifestation of seborrheic dermatitis of the scalp, which leads to severe dandruff and oily scalp due to the proliferation of malassezia, which in turn promotes the proliferation of malassezia. The inhibitory effect of malassezia is generally used as a method for evaluating the efficacy of anti-dandruff products.

The experimental method comprises the following steps: taking materials from normal human head with dandruff by adopting a shaving method, inoculating the materials into a culture medium plate, culturing for 10 days at 32 ℃, streaking various malassezia obtained on the same culture medium plate to separate out single colonies, and identifying and separating to obtain 3 typical malassezia furfur (respectively numbered 1, 2 and 3). Taking qualitative filter paper, beating the qualitative filter paper into a circular filter paper sheet with the diameter of 5mm by using a puncher, sterilizing by using pressure steam, taking a plurality of sterilized and dried sample pieces, respectively dipping a little of the shampoos of examples 1-3 and comparative examples 1-2 on the sample pieces by using sterile tweezers, and smearing the sample pieces uniformly as much as possible. Preparing activated malassezia furfur into 10⁶-10⁷cfu/ml bacterial suspension, 0.5ml bacterial suspension is evenly smeared on a culture medium plate with the thickness of 12 cm. Each plate was covered with 3 test specimens and 1 negative control (containing no test shampoo) specimen for a total of 4 specimens. After the sample is placed, the sample is lightly pressed by using sterile tweezers to make the sample tightly attached to the surface of the flat plate. The plate was covered, placed in a 32 ℃ incubator and inverted for 7 days, and the diameter (mm) of the zone of inhibition was measured and recorded with a vernier caliper. The results of the experiment are shown in table 1.

TABLE 1 diameter of inhibition zone of shampoo to malassezia

As can be seen from the experimental results in Table 1, the anti-dandruff and anti-itching shampoos in examples 1 to 3 of the present invention have good inhibitory effect on 3 strains of malassezia furfur isolated clinically. In addition, compared with comparative examples 1-2 only using chemical bacteriostat (piroctone olamine salt + zinc pyrithione) and only using plant natural bacteriostat (common cnidium fruit extract + lightyellow sophora root extract + cymene pentaol), the invention can play a role in synergy in bacteriostasis by reasonably compounding the formula of the anti-dandruff and itching-relieving composition, effectively reduces the dosage of the chemical bacteriostat, and achieves the effects of lasting mildness, anti-dandruff and itching-relieving without damaging scalp.

Hair washing deviceEvaluation of Water-based anti-dandruff antipruritic Effect

100 volunteers (age 30-50 years) with dandruff, scalp itching and other problems were selected and divided into 5 groups of 20 persons. Each group of volunteers used the anti-dandruff and anti-itching shampoo of the present invention (examples 1-3, comparative examples 1-2) and shampooed 1 time per night for two months. The evaluation criteria of the dandruff removing and itching relieving effect are as follows: obviously improves the symptoms (scurf is obviously reduced, the head itch problem disappears), has good effect (scurf is partially reduced, the head itch interval time is prolonged), and has no effect (the problems of the scurf and the head itch are not changed). The results of the experiment are shown in table 2.

TABLE 2 evaluation of antidandruff and antipruritic effects

The experimental results in table 2 show that the anti-dandruff and anti-itching shampoo disclosed by the invention has a remarkable effect on reducing the number of dandruff and relieving the itching problem of the head. By adding chemical bacteriostatic agents and natural plant bacteriostatic agents in reasonable proportion into shampoo, the anti-dandruff and itching-relieving efficacy of the existing shampoo can be obviously improved, and the total effective rate of treating dandruff and scalp itching exceeds 95%.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications or equivalents may be made to the technical solution without departing from the principle of the present invention, and these modifications or equivalents should also be regarded as the protection scope of the present invention.

Claims

1. The anti-dandruff itching-relieving shampoo is characterized by comprising the following components in percentage by weight: 5-25% of main surfactant, 1-5% of cosurfactant, 2-10% of mild surfactant, 0.1-5% of water-soluble grease, 0.5-4% of conditioner, 0.2-3% of sodium chloride, 0.1-3% of citric acid, 0.2-3% of sodium citrate, 1-4% of anti-dandruff and anti-itching composition and the balance of deionized water.

2. The anti-dandruff and anti-itching shampoo according to claim 1, which is characterized by comprising the following components in percentage by weight: 10-20% of main surfactant, 2-4% of cosurfactant, 4-6% of mild surfactant, 0.5-4% of water-soluble grease, 1-3% of conditioner, 1-2% of sodium chloride, 0.2-0.5% of citric acid, 0.3-0.6% of sodium citrate, 1.5-2.5% of anti-dandruff and anti-itching composition and the balance of deionized water.

3. The anti-dandruff and anti-itching shampoo according to claim 2, characterized by comprising the following components in percentage by weight: 15% of main surfactant, 3% of cosurfactant, 5% of mild surfactant, 2% of water-soluble grease, 2% of conditioner, 1.5% of sodium chloride, 0.3% of citric acid, 0.4% of sodium citrate, 2% of anti-dandruff and anti-itching composition and the balance of deionized water.

4. The anti-dandruff and anti-itching shampoo according to any one of claims 1 to 3, wherein the primary surfactant is selected from ammonium lauryl sulfate and/or sodium laureth sulfate.

5. Dandruff-removing and itching-relieving shampoo according to any of claims 1 to 3, characterized in that the co-surfactant is selected from cocamide MEA and/or cocamide DEA.

6. An antidandruff and antipruritic shampoo according to any of claims 1 to 3 wherein the mild surfactant is selected from decyl glucoside, sodium lauroyl sarcosinate, sodium lauroamphoacetate, cocamidopropyl betaine, sodium cocamidopropionate, sodium methylcocoyltaurate and/or cocamidopropyl hydroxysultaine.

7. The anti-dandruff and anti-itching shampoo according to any one of claims 1 to 3, wherein the water-soluble oil is selected from PEG-7 olive oil ester, water-soluble macadamia nut oil, PEG-7 glyceryl cocoate and/or hydrogenated jojoba oil.

8. The anti-dandruff and antipruritic shampoo according to any one of claims 1 to 3, wherein the conditioner is selected from sodium xylene sulfonate, guar hydroxypropyltrimonium chloride, polyquaternium-7, polyquaternium-10 and/or polyquaternium-67.

9. The antidandruff and antipruritic shampoo according to any of claims 1 to 3, wherein the antidandruff and antipruritic composition consists of 0.3 to 1% of piroctone olamine salt (OCT), 0.2 to 0.5% of Zinc Pyrithione (ZPT), 0.2 to 1.2% of cnidium monnieri extract, 0.25 to 1.2% of sophora flavescens extract and 0.05 to 0.1% of cymene pentaol.

10. The method for preparing the dandruff-removing and itching-relieving shampoo as claimed in claim 9, wherein the method comprises the following steps: