Anti-dandruff shampoo composition and preparation method thereof

Abstract

The invention provides an anti-dandruff shampoo composition and a preparation method thereof, and belongs to the field of daily cosmetics. The anti-dandruff shampoo composition is prepared from the following raw materials in percentage by mass: 5-35% of a surfactant, 0.1-8% of plant saponin, 0.1-10% of polysaccharide, 1-10% of compound fermentation liquor, 0.5-15% of a conditioner and the balance of water, and the compound fermentation liquor is prepared from the following raw materials: cacumen biotae, radix sophorae flavescentis, fructus cnidii, cortex dictamni and radix rehmanniae. The anti-dandruff shampoo composition can effectively solve the problem of dandruff, has the advantages of being mild, safe, good in stability, good in use experience, environmentally friendly, sustainable and the like, and provides a high-quality anti-dandruff shampoo solution for consumers.

Description

Technical Field

[0001] The invention belongs to the field of daily cosmetics, and particularly relates to an anti-dandruff shampoo composition and a preparation method thereof. Background Art

[0002] With the improvement of living standards and the increasing demand for personal care products, anti-dandruff shampoo has become one of the indispensable products on the market. The main function of anti-dandruff shampoo is to clean the scalp, remove dandruff, and keep the scalp healthy. Early anti-dandruff shampoos mainly relied on a single chemical ingredient to achieve the anti-dandruff effect. Although these chemical ingredients can quickly and effectively remove dandruff, they are often accompanied by a series of side effects, such as dry scalp, irritation, and allergies. With consumers' pursuit of healthy and natural products, more and more natural anti-dandruff shampoos have appeared on the market. These products usually combine plant extracts, natural oils and other natural ingredients to provide a gentler and safer anti-dandruff solution.

[0003] Although natural anti-dandruff shampoos have solved the side effects of chemical ingredients to a certain extent, they still face many challenges in formula design and preparation technology. First, the extraction and purification process of natural ingredients is relatively complicated, requiring fine process control and high-quality raw material sources. Secondly, natural ingredients have poor stability and solubility, and are prone to form precipitation or flocs in shampoo, affecting the appearance and use of the product. In addition, the antibacterial and antifungal effects of natural ingredients are usually not as strong as those of chemical ingredients, so it is necessary to enhance their anti-dandruff effects through scientific formula design and reasonable ratios.

[0004] In recent years, with the development of biotechnology and fermentation technology, more and more research has focused on using fermentation technology to improve the activity and stability of natural ingredients. Fermentation technology can not only enhance the antibacterial and antifungal effects of plant extracts, but also improve their solubility and stability in shampoo. By selecting suitable fermentation strains and optimizing fermentation conditions, natural anti-dandruff shampoo with higher biological activity and better stability can be prepared. The application of this technology not only improves the anti-dandruff effect of the product, but also enhances the mildness and safety of the product, meeting consumers' demand for high-quality personal care products.

[0005] However, despite the remarkable progress in the application of fermentation technology in natural anti-dandruff shampoo, there are still some challenges in practical application. First, the control and management of microorganisms in the fermentation process is a key issue. It is necessary to ensure that no harmful substances are produced during the fermentation process, while ensuring the purity and stability of the fermentation products. Secondly, the selection of the fermentation matrix and the amount of fermentation products added also need to be carefully considered to ensure that it can not only improve the anti-dandruff effect in the shampoo, but also be evenly distributed and stably present.

[0006] Therefore, there is an urgent need for a natural anti-dandruff shampoo with higher biological activity and better stability, which can not only effectively remove dandruff, but also protect the health of the scalp and meet consumers' demand for high-quality personal care products. Summary of the invention

[0007] The purpose of the present invention is to provide an anti-dandruff shampoo composition and a preparation method thereof, which can effectively solve the dandruff problem and also has the advantages of being mild and safe, having good stability, having a good use experience, being environmentally friendly and sustainable, thereby providing consumers with a high-quality anti-dandruff shampoo solution.

[0008] In order to achieve the above object, the present invention provides the following technical solutions:

[0009] On one hand, the present invention provides an anti-dandruff shampoo composition, comprising the following raw materials in percentage by mass: 5-35% of a surfactant, 0.1-8% of a plant saponin, 0.1-10% of a polysaccharide, 1-10% of a composite fermentation broth, 0.5-15% of a conditioner, and the remainder being water, wherein the raw materials of the composite fermentation broth include BIOTA ORIENTALIS, SOPHORA FLAVESCENS, Cnidium monnieri, DICTAMNUS DASYCARPUS, and REHMANNIA GLUTINOSA.

[0010] Furthermore, the anti-dandruff shampoo composition comprises the following raw materials in percentage by mass: 10-30% surfactant, 0.5-2% plant saponin, 0.5-2% polysaccharide, 3-6% composite fermentation liquid, 5-10% conditioner, and the rest is water.

[0011] Furthermore, the surfactant is a mixture of anionic surfactant, nonionic surfactant and amphoteric surfactant, and the mass ratio thereof is 3-5:1-2:0.5-1.5;

[0012] Furthermore, the anionic surfactant is lauryl alcohol polyether sulfate or lauryl alcohol sulfate, the nonionic surfactant is cocamide MEA or cocamide DEA, and the amphoteric surfactant is cocamidopropyl betaine or disodium cocoamphodiacetate.

[0013] The present invention uses anionic surfactants, nonionic surfactants and amphoteric surfactants in a mixed manner. Anionic surfactants have strong decontamination ability, can effectively remove grease and dirt on scalp and hair, can also produce rich foam, improve the user experience; nonionic surfactants have good wettability and dispersibility, help to improve cleaning efficiency, amphoteric surfactants can maintain activity under different pH conditions, enhance cleaning effect, nonionic surfactants and amphoteric surfactants can also improve the stability and persistence of foam, make the foam more delicate and rich. Although anionic surfactants have strong cleaning power, they may cause irritation to skin and scalp when used alone, while nonionic surfactants and amphoteric surfactants are relatively mild, can reduce the irritation of anionic surfactants, and make the whole formula more gentle. Anionic surfactants have good solubility, can help other ingredients to dissolve better in water, improve the uniformity and stability of the formula, nonionic surfactants and amphoteric surfactants have good dispersibility, can make other ingredients (such as plant saponins, polysaccharides, etc.) in the formula evenly dispersed, improve the overall performance of the product. The use of a mixture of surfactants can further improve the overall stability of the shampoo and prevent stratification, precipitation or discoloration under different temperature and storage conditions.

[0014] Furthermore, the plant saponins are camellia seed saponins, sapindus mukorossi saponins and saponins in a mass ratio of 1:0.4-0.6:0.1-0.5.

[0015] The present invention adds plant saponins to the anti-dandruff composition, and the plant saponins have strong antibacterial and anti-inflammatory effects, and also have good cleaning and moisturizing effects. The present invention preferably uses camellia seed saponins, saponin and saponin in combination, and the combination of the three can further enhance the multiple effects of antibacterial, antifungal, cleaning, moisturizing, soothing and repairing. Specifically, camellia seed saponins and saponin have strong antibacterial and antifungal activities, can effectively inhibit Malassezia on the scalp, and reduce the generation of dandruff. Although the antibacterial activity of saponin is relatively weak, it can provide a good moisturizing effect and enhance the resistance of the scalp. When camellia seed saponins and saponin are mixed with saponin, the irritation can be significantly reduced, making the whole formula more gentle. Saponin has a strong decontamination ability, can effectively remove grease and dirt on the scalp, and camellia seed saponins and saponin can provide a gentle cleaning effect to avoid scalp dryness and irritation caused by excessive cleaning.

[0016] Furthermore, the polysaccharide is konjac tetraose and maltotetraose in a mass ratio of 1:3-5.

[0017] The present invention adds polysaccharides to the anti-dandruff composition, which can improve the moisture retention and antioxidant properties of the composition, provide necessary moisture for the scalp and hair, and keep the scalp moist. In particular, the combined use of nitrate tetraose and maltotetraose has a better effect. Nectrotetraose has a strong antioxidant capacity, can remove free radicals, and protect the scalp from oxidative damage. Maltotetraose also has a certain antioxidant property and can assist in protecting the health of the scalp. Maltotetraose can promote the metabolism and repair of scalp cells, enhance the resistance of the scalp, and reduce the generation of dandruff. Nectrotetraose can provide necessary nutrition and support the normal function of scalp cells. Both nitrate tetraose and maltotetraose are natural polysaccharides with good skin compatibility, and will not cause irritation or allergic reactions. They can act gently on the scalp and provide a comfortable use experience.

[0018] Furthermore, the preparation method of the composite fermentation broth comprises the following steps:

[0019] (i) washing the Platycladus orientalis leaves, Sophora flavescens, Cnidium monnieri, Dictamni cortex and Rehmannia root respectively, cutting into small pieces or crushing, and mixing to obtain a mixed plant material;

[0020] (ii) adding distilled water to the mixed plant material, wherein the mass ratio of the mixed plant material to the distilled water is 1:2-3, and then adding 1-2% of glucose by mass of the mixed plant material, and adjusting the pH value to 6.0-7.0 to obtain a mixture;

[0021] (iii) adding composite fermentation bacteria to the mixture, wherein the composite fermentation bacteria includes lactobacillus, yeast and Bacillus subtilis, and the amount of lactobacillus added is 10 9 -10 10 CFU / g mixed plant material, the amount of yeast added is 10 8 -10 9 CFU / g mixed plant material, the addition amount of Bacillus subtilis is 10 6 -10 7 CFU / g mixed plant material;

[0022] (iv) placing the inoculated mixture into a fermentation tank, setting the temperature to 30° C. to 35° C., fermenting for 7 to 10 days, and stirring once a day during the fermentation to ensure uniform fermentation;

[0023] (v) After the fermentation is completed, the fermented product is filtered to remove solid residues to obtain a clarified fermentation liquid, and the fermentation liquid is sterilized to obtain a composite fermentation liquid.

[0024] Furthermore, in step (i), the mass ratio of Platycladus orientalis leaves, Sophora flavescens, Cnidium monnieri, Dictamni cortex and Rehmannia root is 2-3:1-2:1-2:0.5-1:1-2;

[0025] Furthermore, in step (ii), citric acid or sodium hydroxide is used to adjust the pH value.

[0026] The active ingredients in the composite fermentation liquid prepared by the present invention can effectively inhibit Malassezia on the scalp and reduce the generation of dandruff. The metabolites produced during the fermentation process can provide necessary nutrition and bioactive substances, promote the metabolism and repair of scalp cells, and enhance the resistance of the scalp. The application of natural plant ingredients and fermentation technology makes the composite fermentation liquid have high mildness and safety, reducing the risk of irritation and allergies to the scalp. The plant raw materials used in the present invention include Platycladus orientalis leaves, Sophora flavescens, Cnidium monnieri, Dictamni cortex and Rehmannia root, which can achieve a balance in antibacterial and anti-inflammatory aspects, and avoid side effects caused by excessive use of a single ingredient. Platycladus orientalis leaves contain a variety of volatile oils and flavonoids, which have strong antibacterial and antifungal activities and can effectively inhibit Malassezia on the scalp; Sophora flavescens contains alkaloids such as matrine, which have strong antibacterial and anti-inflammatory effects and can reduce the risk of scalp inflammation and infection; Cnidium monnieri can promote scalp blood circulation and improve scalp health; Dictamni cortex has antipruritic and soothing effects, which can relieve scalp itching and discomfort; Rehmannia glutinosa has a heat-clearing and detoxifying effect, which can improve the microenvironment of the scalp and promote scalp health. The active ingredients in different plant raw materials can work synergistically to enhance the antibacterial, antifungal, anti-inflammatory and antipruritic effects, providing more comprehensive scalp care. During fermentation, a composite fermentation bacteria of lactobacillus, yeast and Bacillus subtilis is used. The mixed fermentation of multiple strains can produce more types of metabolites, improve the biological activity and functional diversity of the fermentation liquid, and the mixed fermentation of different strains can improve the stability of the fermentation liquid and prevent stratification, precipitation or discoloration under different temperatures and storage conditions.

[0027] Further, the conditioning agent is one or more of fatty alcohol, quaternary ammonium salt, polyquaternary ammonium salt, cationic polymer, silicone compound, ethylene glycol distearate and glyceride;

[0028] Preferably, the fatty alcohol is one or both of cetyl alcohol and stearyl alcohol;

[0029] Preferably, the quaternary ammonium salt is one or both of hexadecyltrimethylammonium chloride and octadecyltrimethylammonium chloride;

[0030] Preferably, the polyquaternium salt is one or both of polyquaternium-7 and polyquaternium-10;

[0031] Preferably, the cationic polymer is guar hydroxypropyltrimonium chloride;

[0032] Preferably, the siloxane compound is one or both of dimethylsiloxane and cyclomethylsiloxane;

[0033] Preferably, the glycerides are one or both of glyceryl stearate and glyceryl monostearate.

[0034] Another aspect of the present invention also provides a method for preparing the anti-dandruff shampoo composition, comprising the following steps:

[0035] (1) dispersing plant saponin and polysaccharide in water and stirring uniformly to obtain a mixture 1;

[0036] (2) mixing the surfactant and the conditioning agent and stirring them uniformly to obtain a mixture 2;

[0037] (3) Adding mixture 1 to mixture 2, and homogenizing using a high-speed shearing machine or a homogenizer to ensure uniform mixing and form a stable emulsified system;

[0038] (4) adding the composite fermentation liquid to the emulsified system, continuing to stir evenly, adjusting the pH value to between 5.5 and 7.0, and sterilizing to obtain an anti-dandruff shampoo composition.

[0039] Compared with the prior art, the advantages and beneficial effects of the present invention are:

[0040] 1. Highly effective dandruff removal: By using specific natural plant ingredients and composite fermentation liquid, the anti-dandruff shampoo composition of the present invention can effectively inhibit Malassezia on the scalp and reduce the generation of dandruff.

[0041] 2. Mild and safe: The anti-dandruff shampoo composition of the present invention uses natural plant ingredients, avoiding the problems of scalp dryness, irritation and allergy that may be caused by traditional chemical ingredients.

[0042] 3. Good stability: Through scientific formula design and reasonable preparation process, the anti-dandruff shampoo composition of the present invention can maintain good stability during long-term storage.

[0043] 4. Environmental protection and sustainability: The natural plant ingredients and fermentation technology adopted in the present invention not only reduce the use of chemical ingredients and reduce the impact on the environment, but also promote the sustainable use of resources.

[0044] 5. Multifunctionality: The anti-dandruff shampoo composition of the present invention not only has an excellent anti-dandruff effect, but also can provide necessary nutrition and moisturizing to the hair while cleaning the scalp, thereby comprehensively improving the health of the scalp and hair. DETAILED DESCRIPTION

[0045] The technical scheme in the embodiment of the present invention will be clearly and completely described below. Obviously, the described embodiment is only a part of the embodiment of the present invention, rather than all the embodiments. Based on the embodiment in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present invention. In addition, it is worth noting that the raw materials involved in the present invention are all common commercial products unless otherwise specified.

[0046] The following sources of raw materials are provided for illustrative purposes:

[0047] Camellia seed saponin, Sapindus mukorossi saponin, and Gleditsia saponin were purchased from Beijing Bailingwei Technology Co., Ltd.;

[0048] Kestose tetraose and maltotetraose were purchased from Shanghai Myrel Biochemical Technology Co., Ltd.

[0049] Lactobacillus was purchased from China Industrial Microbiology Culture Collection Center, number: CICC 10217.

[0050] Bacillus subtilis was purchased from China Industrial Microbiological Culture Collection Center, number: CICC 10003.

[0051] Yeast was purchased from China Industrial Microbiological Culture Collection Center, number: CICC 1301.

[0052] Malassezia was purchased from China Industrial Microbiological Culture Collection Center, No.: CICC 13020.

[0053] Example 1

[0054] The present embodiment provides an anti-dandruff shampoo composition, comprising the following raw materials in percentage by mass: 25% surfactant, 1% plant saponin, 1% polysaccharide, 5% composite fermentation liquid, 8% conditioner, and the remainder water.

[0055] Among them, the surfactant is sodium laureth sulfate, cocamide MEA and cocamidopropyl betaine, and the mass ratio is 4:1.5:1;

[0056] The plant saponins are camellia seed saponin, sapindus seed saponin and saponin, with a mass ratio of 1:0.5:0.3;

[0057] The polysaccharides are saccharide tetraose and maltotetraose, with a mass ratio of 1:4;

[0058] The conditioning agents are cetyl alcohol, polyquaternium-7, guar hydroxypropyltrimonium chloride, and glyceryl stearate, with a mass ratio of 1:1:1:1.

[0059] The composite fermentation broth was prepared by the following method:

[0060] (i) washing Platycladus orientalis leaves, Sophora flavescens, Cnidium monnieri, Dictamni cortex and Rehmannia root in a mass ratio of 2:1.5:1.5:0.8:1.5, cutting into small sections, and mixing to obtain a mixed plant material;

[0061] (ii) adding distilled water to the mixed plant material, wherein the mass ratio of the mixed plant material to the distilled water is 1:2.5, and then adding 1% glucose by mass of the mixed plant material, and adjusting the pH value to 6.5 to obtain a mixture;

[0062] (iii) adding composite fermentation bacteria to the mixture, wherein the composite fermentation bacteria includes lactobacillus, yeast and Bacillus subtilis, and the amount of lactobacillus added is 10 10 CFU / g mixed plant material, the amount of yeast added is 10 9 CFU / g mixed plant material, the addition amount of Bacillus subtilis is 10 7 CFU / g mixed plant material;

[0063] (iv) placing the inoculated mixture into a fermentation tank, setting the temperature to 33° C., and fermenting for 9 days, stirring once a day during the fermentation to ensure uniform fermentation;

[0064] (v) After the fermentation is completed, the fermented product is filtered to remove solid residues to obtain a clarified fermentation broth, and the fermentation broth is sterilized at 121° C. for 15 minutes to obtain a composite fermentation broth.

[0065] The preparation method of the anti-dandruff shampoo composition comprises the following steps:

[0066] (1) Weigh plant saponins, polysaccharides and water according to the formula, disperse the plant saponins and polysaccharides in the water, and stir evenly for 15 minutes to obtain a mixture 1;

[0067] (2) weighing a surfactant and a conditioning agent according to the formula, mixing the two, and stirring them evenly for 20 minutes until the mixture becomes uniform and has no obvious stratification, to obtain a mixture 2;

[0068] (3) Add mixture 1 to mixture 2 and homogenize using a homogenizer for 10 minutes to ensure uniform mixing and form a stable emulsified system;

[0069] (4) adding the composite fermentation liquid to the emulsified system and continuing to stir evenly for 20 minutes, adjusting the pH value to 6.5, and sterilizing to obtain an anti-dandruff shampoo composition.

[0070] Example 2

[0071] The present embodiment provides an anti-dandruff shampoo composition, comprising the following raw materials in percentage by mass: 30% surfactant, 2% plant saponin, 0.5% polysaccharide, 4% composite fermentation liquid, 10% conditioner, and the remainder water.

[0072] Among them, the surfactants are ammonium lauryl sulfate, cocamide DEA and cocamidopropyl betaine, with a mass ratio of 3:2:1;

[0073] The plant saponins are camellia seed saponin, sapindus seed saponin and saponin, with a mass ratio of 1:0.4:0.4;

[0074] The polysaccharides are konjac tetraose and maltotetraose, with a mass ratio of 1:3;

[0075] The rest is the same as Example 1.

[0076] Comparative Example 1

[0077] This comparative example provides an anti-dandruff shampoo composition, comprising the following raw materials in percentage by mass: 40% surfactant, 1% plant saponin, 1% polysaccharide, 1% composite fermentation liquid, 8% conditioner, and the rest water;

[0078] The rest is the same as Example 1.

[0079] Comparative Example 2

[0080] This comparative example provides an anti-dandruff shampoo composition, which is different from Example 1 in that the surfactants are sodium laureth sulfate, ammonium lauryl sulfate and cocamide MEA, and the mass ratio is 1:1:1.

[0081] Comparative Example 3

[0082] This comparative example provides an anti-dandruff shampoo composition, which is different from Example 1 in that the plant saponin is replaced by glucoside.

[0083] Comparative Example 4

[0084] This comparative example provides an anti-dandruff shampoo composition, which is different from Example 1 in that the amount of plant saponin added is 10%.

[0085] Comparative Example 5

[0086] This comparative example provides an anti-dandruff shampoo composition, which is different from Example 1 in that the polysaccharide is replaced by hyaluronic acid.

[0087] Comparative Example 6

[0088] This comparative example provides an anti-dandruff shampoo composition, which differs from Example 1 in that the raw materials for preparing the composite fermentation liquid are replaced with ginger, sophora flavescens, green tea, dandelion root and rehmannia root in a mass ratio of 1:1:1:1:1.

[0089] Comparative Example 7

[0090] This comparative example provides an anti-dandruff shampoo composition, which is different from Example 1 in that the composite fermentation bacteria is replaced by a single lactobacillus in the preparation of the composite fermentation liquid.

[0091] Performance test 1st stability test

[0092] The anti-dandruff shampoo compositions prepared in Examples 1-2 and Comparative Examples 1-7 were prepared as test samples, and three parallel samples were prepared for each sample. They were stored at 4° C., 25° C. and 40° C. for one month, and observed for stratification, precipitation or discoloration. The results are shown in Table 1.

[0093] Table 1 Stability test results

[0094]

[0095]

[0096] The above test results show that the anti-dandruff composition prepared by the present invention keeps clear samples under all test conditions without stratification, precipitation or discoloration, proving that the formula design of the present invention is reasonable, the ingredients are stable, and good stability can be maintained at different temperatures. The surfactants used in Comparative Example 2 are sodium laureth sulfate, ammonium lauryl sulfate and cocamide MEA, with a mass ratio of 1:1:1. This ratio leads to poor compatibility between surfactants, especially under low temperature conditions, which easily causes turbidity and precipitation. In Comparative Example 4, the amount of plant saponin added is 10%. The high concentration of plant saponin has reduced solubility at low temperatures, and will destroy the balance of the formula, easily causing turbidity and precipitation, affecting the overall stability.

[0097] Performance test 2 Anti-dandruff performance test

[0098] Test samples: anti-dandruff shampoo compositions prepared in Examples 1-2, Comparative Example 1, Comparative Example 3, and Comparative Examples 5-7.

[0099] Test method: Inoculate the Malassezia strain on yeast extract glucose agar medium, place it in a 30℃ constant temperature incubator for 48 hours, scrape the colony from the cultured plate, use sterile water to make a bacterial suspension with a concentration of about 10^6CFU / mL, dilute the shampoo sample to 1.0% for later use. Take a sterile culture dish, add 10mL yeast extract glucose agar medium to each culture dish, add 100μL bacterial suspension to each culture dish, spread it evenly, use a pipette to drop different shampoo samples at different positions of each culture dish, set 3 parallel samples for each sample, and drop 20μL for each sample. Place the culture dish in a 30℃ constant temperature incubator for 48 hours, and record the diameter of the antibacterial ring around each sample drop point. The results are shown in Table 2.

[0100] Table 2 Anti-dandruff performance test results

[0101]

[0102] The above results show that the shampoo prepared by the present invention has a very significant inhibitory effect on Malassezia, indicating that they have strong anti-dandruff performance. The surfactant content of Comparative Example 1 is 40%. Although a high concentration of surfactant can enhance the cleaning effect, it may destroy the balance of the shampoo and reduce the effectiveness of other ingredients; a high concentration of surfactants will also interfere with the effects of ingredients such as plant saponins and polysaccharides, affecting their antibacterial effects; in addition, a high concentration of surfactants may also cause the pH value of the shampoo to be unstable, affecting its inhibitory effect on Malassezia. In Comparative Example 3, plant saponins are replaced with glucosides. Although glucosides have certain moisturizing and antioxidant effects, their antibacterial and antifungal effects are weak and cannot effectively inhibit the growth of Malassezia. In Comparative Example 5, polysaccharides are replaced with hyaluronic acid. Although hyaluronic acid has a good moisturizing effect, its antibacterial and antifungal effects are weak and cannot effectively replace the effects of polysaccharides. In comparative example 6, the raw materials for preparing the composite fermentation liquid are replaced with ginger, sophora flavescens, green tea, dandelion root and rehmannia root, which are not as effective as the arborvitae leaves, sophora flavescens, cnidium monnieri, white mulberry bark and rehmannia root in the formula of the present invention. In comparative example 7, the composite fermentation bacteria are replaced with a single lactobacillus. The mixed fermentation of multiple strains can produce more metabolites and enhance the antibacterial effect. A single strain cannot provide a similar synergistic effect.

[0103] Performance test 3 Moisturizing performance test

[0104] Test samples: anti-dandruff shampoo compositions prepared in Examples 1-2, Comparative Example 1, Comparative Example 3, and Comparative Examples 5-7.

[0105] Volunteers to be recruited: 35 healthy volunteers aged between 20 and 40 years old, without severe skin diseases, ensuring that they do not use any skin care products or drugs that may affect skin moisture.

[0106] Test method: Volunteers were randomly divided into 7 groups, 5 people in each group, and then the volunteers were asked to use the shampoos of Examples 1-2, Comparative Example 1, Comparative Example 3 and Comparative Examples 5-7 respectively. The volunteers used the designated shampoo for 14 consecutive days, once a day. After each use, the hair was allowed to dry naturally and other hair care products were avoided. The scalp moisture content of the volunteers before and after using the shampoo for 14 days was measured using a skin moisture meter; the hair mass of the volunteers before and after using the shampoo for 14 days was measured by a mass determination method, and the change in scalp moisture content (the change in moisture content before and after use) and the change rate of moisture content in the hair (the ratio of the change in moisture content before and after use to the moisture content before use) were calculated, and the average value of each group of volunteers was calculated. The results are shown in Table 3.

[0107] Table 3 Moisturizing performance test results

[0108]

[0109] The above results show that the anti-dandruff composition prepared by the present invention has a significant moisturizing effect and can significantly increase the moisture content of the scalp and hair. The surfactant content of Comparative Example 1 is 40%. High concentrations of surfactants may damage the natural barrier of the scalp and hair, leading to water loss. In Comparative Example 3, plant saponins are replaced with glucoside. Although glucoside has certain moisturizing and antioxidant effects, its moisturizing effect is weak and cannot effectively replace the effect of plant saponins. In Comparative Example 5, polysaccharides are replaced with hyaluronic acid. Hyaluronic acid has a good moisturizing effect, but its moisturizing mechanism is different from that of polysaccharides. In Comparative Example 6, the raw materials for preparing the composite fermentation liquid are replaced with ginger, sophora flavescens, green tea, dandelion root and rehmannia root. The moisturizing effects of these raw materials are not as effective as the original formula. In Comparative Example 7, the composite fermentation bacteria are replaced with a single lactobacillus, which is not as complex and diverse as the fermentation products of multiple species, resulting in a decrease in moisturizing effect.

[0110] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An anti-dandruff shampoo composition, comprising the following raw materials in percentage by weight: 5-35% surfactant, 0.1-8% plant saponin, 0.1-10% polysaccharide, 1-10% composite fermentation liquid, 0.5-15% conditioner, and the rest water; wherein, The raw materials of the composite fermentation liquid include Platycladus orientalis leaves, Sophora flavescens, Cnidium monnieri, Dictamni cortex and Rehmannia root.

2. The anti-dandruff shampoo composition according to claim 1, characterized in that The raw materials are as follows in percentage by mass: 10-30% of a surfactant, 0.5-2% of a plant saponin, 0.5-2% of a polysaccharide, 3-6% of a composite fermentation liquid, 5-10% of a conditioning agent, and the remainder is water.

3. The anti-dandruff shampoo composition according to claim 1 or 2, characterized in that The surfactant is a mixture of anionic surfactant, nonionic surfactant and amphoteric surfactant, and the mass ratio thereof is 3-5:1-2:0.5-1.

5. The anionic surfactant is lauryl alcohol polyether sulfate or lauryl alcohol sulfate, the nonionic surfactant is cocamide MEA or cocamide DEA, and the amphoteric surfactant is cocamidopropyl betaine or disodium cocoamphodiacetate.

4. The anti-dandruff shampoo composition according to claim 1 or 2, characterized in that The plant saponins are camellia seed saponins, sapindus mukorossi saponins and saponins in a mass ratio of 1:0.4-0.6:0.1-0.

5.

5. The anti-dandruff shampoo composition according to claim 1 or 2, characterized in that: The polysaccharide is konjac tetraose and maltotetraose in a mass ratio of 1:3-5.

6. The anti-dandruff shampoo composition according to claim 1 or 2, characterized in that The preparation method of the composite fermentation broth comprises the following steps: (i) washing the Platycladus orientalis leaves, Sophora flavescens, Cnidium monnieri, Dictamni cortex and Rehmannia root respectively, cutting into small pieces or crushing, and mixing to obtain a mixed plant material; (ii) adding distilled water to the mixed plant material, wherein the mass ratio of the mixed plant material to the distilled water is 1:2-3, and then adding 1-2% of glucose by mass of the mixed plant material, and adjusting the pH value to 6.0-7.0 to obtain a mixture; (iii) adding composite fermentation bacteria to the mixture, wherein the composite fermentation bacteria includes lactobacillus, yeast and Bacillus subtilis, and the amount of lactobacillus added is 10 9 -10 10 CFU / g mixed plant material, the amount of yeast added is 10 8 -10 9 CFU / g mixed plant material, the addition amount of Bacillus subtilis is 10 6 -10 7 CFU / g mixed plant material; (iv) placing the inoculated mixture into a fermentation tank, setting the temperature to 30° C. to 35° C., fermenting for 7 to 10 days, and stirring once a day during the fermentation to ensure uniform fermentation; (v) After the fermentation is completed, the fermented product is filtered to remove solid residues to obtain a clarified fermentation liquid, and the fermentation liquid is sterilized to obtain a composite fermentation liquid.

7. The anti-dandruff shampoo composition according to claim 6, characterized in that In step (i), the mass ratio of Platycladus orientalis leaves, Sophora flavescens, Cnidium monnieri, Dictamni cortex and Rehmannia root is 2-3:1-2:1-2:0.5-1:1-2; and in step (ii), citric acid or sodium hydroxide is used to adjust the pH value.

8. The anti-dandruff shampoo composition according to claim 1 or 2, characterized in that: The conditioning agent is one or more of fatty alcohol, quaternary ammonium salt, polyquaternary ammonium salt, cationic polymer, silicone compound, ethylene glycol distearate and glyceride.

9. The anti-dandruff shampoo composition according to claim 8, characterized in that The fatty alcohol is one or both of cetyl alcohol and stearyl alcohol, the quaternary ammonium salt is one or both of cetyl trimethyl ammonium chloride and octadecyl trimethyl ammonium chloride, the polyquaternium salt is one or both of polyquaternium-7 and polyquaternium-10, the cationic polymer is guar gum hydroxypropyl trimethyl ammonium chloride, the silicone compound is one or both of dimethyl siloxane and cyclomethicone, and the glyceride is one or both of glyceryl stearate and glyceryl monostearate.

10. The method for preparing the anti-dandruff shampoo composition according to any one of claims 1 to 9, characterized in that: The steps include: (1) dispersing plant saponin and polysaccharide in water and stirring uniformly to obtain a mixture 1; (2) mixing the surfactant and the conditioning agent and stirring them uniformly to obtain a mixture 2; (3) Adding mixture 1 to mixture 2, and homogenizing using a high-speed shearing machine or a homogenizer to ensure uniform mixing and form a stable emulsified system; (4) adding the composite fermentation liquid to the emulsified system, continuing to stir evenly, adjusting the pH value to between 5.5 and 7.0, and sterilizing to obtain an anti-dandruff shampoo composition.

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