Oil-control anti-dandruff shampoo composition containing hydroxy acid zinc salt

Abstract

The invention discloses an oil-controlling and dandruff-removing shampoo composition containing hydroxy acid zinc salt. The oil-controlling and dandruff-removing shampoo composition is prepared from the following components in percentage by weight: 0.05 to 2 percent of hydroxy acid zinc salt compound, 5 to 20 percent of surfactant, 0.15 to 1 percent of hair conditioner, 0.2 to 2 percent of grease, 0.2 to 1.2 percent of preservative, 0.1 to 1.0 percent of essence, 0.05 to 0.1 percent of citric acid, 0.1 to 1.5 percent of salt and 71.3 to 94.2 percent of water. According to the oil-controlling and dandruff-removing shampoo composition, the hydroxy acid zinc salt component is selected, the dandruff-removing effect is good, mildness is achieved, oil controlling and dandruff removing can be achieved within 7 days, and mildness and no irritation are achieved.

Description

Technical Field

[0001] The invention relates to a shampoo composition, belonging to the technical field of daily chemicals, and in particular to an oil-controlling and anti-dandruff shampoo composition containing a hydroxy acid zinc salt. Background Art

[0002] As the pace of work and life accelerates, modern people are under increasing pressure, and the demand for shampoo has extended from the most basic cleaning function to other dimensions, such as oil control and dandruff removal after washing.

[0003] Dandruff is a product of the metabolism of epidermal cells on the human head. It is a process of keratinization of the epidermis of the head. The stratum corneum is particularly easy to fall off in a dry state, resulting in more dandruff.

[0004] An oily scalp, due to its high oil content, can retain moisture well and produces less dandruff. However, the oil secreted will be secreted into the hair, making it very greasy and looking very unclean, seriously affecting its appearance.

[0005] Therefore, in order to alleviate the problem of excessive dandruff or greasy hair, it is usually necessary to add anti-dandruff and / or oil-control ingredients to shampoo. Zinc pyrithione (ZPT) has a strong bactericidal function and is not easily absorbed by the skin, so it is widely used as an anti-dandruff agent in scalp care products. However, because it will harm the environment and ecology and has embryotoxicity to aquatic organisms, the EU began to ban the use of ZPT in cosmetics in March 2022. With the increasing attention paid to environmental pollution in China, the use of ZPT may also have a trend of gradual tightening in China, and there is even the possibility of banning it. For this reason, it is particularly important to find a shampoo product that can replace ZPT, but has the function of regulating the scalp microecology, balancing oils, and the anti-dandruff agent is of plant origin or natural derivatives. Summary of the invention

[0006] In order to overcome the shortcomings of the prior art, the purpose of the present application is to provide an oil-controlling anti-dandruff composition, which, by selecting anti-dandruff combination ingredients of plant origin or natural source derivatives and plant extract ingredients, balances the oil combination to form a synergistic effect, has the effect of regulating the scalp microecology and reducing excess oil secretion of the scalp, thereby reducing the production of inflammatory factors by harmful bacteria acting on excess oil, and achieving the purpose of balancing oil and scalp microecology.

[0007] In view of the above problems, the purpose of the present invention is to provide a hydroxy acid zinc salt as a new anti-dandruff agent to replace the traditional ZPT product.

[0008] Another object of the present invention is to provide an oil-controlling and anti-dandruff shampoo composition, which has simple anti-dandruff and oil-controlling ingredients and can achieve long-term oil-controlling and anti-dandruff effects.

[0009] Another object of the present invention is to provide a method for preparing the above-mentioned oil-controlling and anti-dandruff shampoo composition, which has simple anti-dandruff and oil-controlling ingredients and low process difficulty.

[0010] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0011] The present invention discloses an oil-controlling and anti-dandruff shampoo composition, which is composed of the following components by weight percentage:

[0012] Hydroxy acid zinc salt compound 0.05-2%, surfactant 5-20%, hair conditioner 0.15-1%, oil 0.2-2%, preservative 0.2-1.2%, flavor 0.1-1.0%, citric acid 0.05-0.1%, salt 0.1-1.5%, and water as the balance.

[0013] Furthermore, in the oil-controlling and anti-dandruff shampoo composition, the hydroxy acid zinc salt compound provides the main oil-controlling and anti-dandruff effect, and it has one or more carboxylic acid zinc salts.

[0014] Furthermore, the hydroxy acid in the hydroxy acid zinc salt compound is selected from α-hydroxy acids, preferably selected from lactic acid, alginic acid, citric acid, hyaluronic acid, gluconic acid, glycyrrhizic acid and mixtures thereof, and more preferably selected from at least one of citric acid and glycyrrhizic acid.

[0015] Furthermore, the zinc salt in the hydroxy acid zinc salt compound contains 1, 2 or 3 or more zinc ions, and the source of the zinc ions is selected from zinc carbonate, zinc oxide, zinc acetate or a mixture thereof, and is preferably selected from zinc carbonate.

[0016] Furthermore, relative to the total weight of the oil-controlling and anti-dandruff shampoo composition, the amount of the zinc salt of hydroxy acid in the composition is 0.05-5%, more preferably 0.2-2%.

[0017] Furthermore, in the oil-controlling and anti-dandruff shampoo composition, the surfactant is at least one or two or more of anionic surfactants, amphoteric surfactants, and nonionic surfactants.

[0018] Furthermore, the anionic surfactant is at least one or two or more of sodium laureth sulfate, sodium lauryl sulfate, sodium cocoyl sarcosinate, sodium lauroyl sarcosinate, sodium cocoyl glutamate, sodium lauroyl glutamate, and sodium alpha olefin sulfonate;

[0019] Furthermore, the amphoteric surfactant is at least one or two or more of cocamidopropyl betaine, sodium cocoamphoacetate, and sodium lauroamphoacetate;

[0020] Furthermore, the nonionic surfactant is at least one or two or more of cocamide MEA, cocamide methyl MEA, and cocamide DEA.

[0021] Further, the hair conditioning agent is at least one or two or more of guar hydroxypropyltrimonium chloride, polyquaternium-10, polyquaternium-11, polyquaternium-7, polyquaternium-22, polyquaternium-28, polyquaternium-55, α-glucan, β-glucan, glucan hydroxypropyltrimonium chloride, α-glucan hydroxypropyltrimonium chloride, Platycladus orientalis leaf and Polygonum multiflorum complex, and Sapindus mukorossi fruit extract;

[0022] Furthermore, the oil is at least one or two or more of polydimethylsiloxane, polydimethylsiloxane alcohol, amino silicone oil, PEG-7 water-soluble oil, and ethylene glycol distearate;

[0023] Furthermore, the preservative is at least one or two or more of sodium benzoate, phenoxyethanol, kasone, p-hydroxyacetophenone, and DMDM ​​hydantoin.

[0024] Furthermore, the pH of the oil-control anti-dandruff shampoo composition is less than 7, preferably less than 6, and more preferably 5.0-6.0. To achieve this pH, necessary pH regulators, such as citric acid or potassium hydroxide, need to be added.

[0025] Furthermore, the oil-controlling anti-dandruff shampoo composition is composed of the following components by weight percentage:

[0026] Hydroxy acid zinc salt compound 2%, surfactant 14.3%, hair conditioner 1.0%, oil 0.8%, preservative 0.5%, fragrance 0.4%, citric acid 0.07%, salt 1.2%, and water as the balance.

[0027] The present invention discloses a method for preparing the oil-controlling and anti-dandruff shampoo composition, comprising the following steps:

[0028] 1) Add surfactant and deionized water into the reactor, heat to 75-85°C and stir for 20-30 minutes;

[0029] 2) Add the hydroxy acid zinc salt compound and the hair conditioner in sequence, turn on the cooling water to cool down, and stir evenly;

[0030] 3) Then cool to below 45° C., add oil, preservative, essence, citric acid and salt, stir evenly, filter out the material, and obtain the oil-controlling and anti-dandruff shampoo composition.

[0031] The invention discloses an oil-controlling and anti-dandruff shampoo composition containing zinc salt of hydroxy acid, which can effectively inhibit Malassezia and reduce the oil content of scalp. The composition is applied in shampoo products and has good oil-controlling and anti-dandruff effects.

[0032] By means of the above technical solution, the present invention has the following advantages and beneficial technical effects:

[0033] 1) The present invention provides a hydroxy acid zinc salt as a novel anti-dandruff agent, providing an alternative to the traditional ZPT solution;

[0034] 2) The present invention provides an oil-controlling anti-dandruff composition, which uses anti-dandruff combination components of plant origin or natural derivatives and plant extract components to balance the oil composition and cooperate with each other, and has the effect of regulating the scalp microecology and reducing the secretion of excess oil on the scalp, thereby reducing the production of inflammatory factors by harmful bacteria acting on excess oil, and achieving the purpose of balancing oil and scalp microecology;

[0035] 3) The oil-controlling and anti-dandruff shampoo composition of the present invention has simple anti-dandruff and oil-controlling ingredients and can achieve a 7-day long-lasting oil-controlling and anti-dandruff effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of scalp dandruff removal after using the oil-controlling anti-dandruff shampoo of Example 1;

[0037] Figure 2 This is a schematic diagram of scalp dandruff removal after using the oil-controlling anti-dandruff shampoo of Example 2;

[0038] Figure 3 This is a schematic diagram of scalp dandruff removal after using the oil-controlling anti-dandruff shampoo of Example 3;

[0039] Figure 4 This is a schematic diagram of scalp dandruff removal after using the oil-controlling anti-dandruff shampoo of Example 4;

[0040] Figure 5 This is a schematic diagram of scalp dandruff removal after using the oil-controlling anti-dandruff shampoo of Example 5.

[0041] Figure 6 This is a schematic diagram of scalp dandruff removal after using the oil-control anti-dandruff shampoo of Comparative Example 1.

[0042] Figure 7 This is a schematic diagram of scalp dandruff removal after using the oil-control anti-dandruff shampoo of Comparative Example 2. DETAILED DESCRIPTION

[0043] The present invention is further described below by specific examples combined with effect test examples. It should be understood that these examples are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0044] The invention discloses an oil-controlling anti-dandruff shampoo composition and a preparation method thereof. The oil-controlling anti-dandruff shampoo composition of the invention comprises, by weight percentage, 0.05-2% of a hydroxy acid zinc salt compound, 5-20% of a surfactant, 0.15-1% of a hair conditioner, 0.2-2% of oil, 0.2-1.2% of a preservative, 0.1-1.0% of an essence, 0.05-0.1% of citric acid, 0.1-1.5% of salt, and the balance of water is 71.3-94.2%.

[0045] The hair conditioning composition of the present invention is applied to shampoo to achieve long-term oil control and dandruff removal.

[0046] Hydroxy acid zinc salt compounds provide oil control and anti-dandruff effects. On the one hand, they can inhibit 5α reductase, inhibit excessive oil secretion of the scalp and inhibit the excessive growth of Malassezia. On the other hand, the free zinc ions participate in the body's synthesis, regulate and repair the scalp barrier, and promote the dynamic balance of water and oil on the scalp.

[0047] The experimental methods in the following examples without specifying specific conditions are usually carried out under conventional conditions or under conditions recommended by the manufacturers.

[0048] Unless otherwise stated, percentages and parts are calculated based on 100% by weight.

[0049] Example 1

[0050] An oil-controlling and anti-dandruff shampoo composition, wherein the raw material components include, by weight percentage:

[0051]

[0052]

[0053] Its preparation process is:

[0054] 1) Add surfactant and deionized water into the reactor, heat to 75°C and stir for 20 minutes;

[0055] 2) Add hydroxy acid zinc salt and hair conditioner in sequence, turn on cooling water to cool down, and stir evenly;

[0056] 3) Then cool to below 45°C, add oil, preservative, essence, citric acid and salt, stir evenly, filter out the material, and obtain a shampoo composition.

[0057] Example 2

[0058] An oil-controlling and anti-dandruff shampoo composition, comprising, by weight, the following raw material components:

[0059]

[0060] Its preparation process is:

[0061] 1) Add surfactant and deionized water into the reactor, heat to 80°C and stir for 30 minutes;

[0062] 2) Add hydroxy acid zinc salt and hair conditioner in sequence, turn on cooling water to cool down, and stir evenly;

[0063] 3) Then cool to below 45°C, add oil, preservative, essence, citric acid and salt, stir evenly, filter out the material, and obtain a shampoo composition.

[0064] Example 3

[0065] An oil-controlling and anti-dandruff shampoo composition is made of the following components in %:

[0066]

[0067]

[0068] Its preparation process is:

[0069] 1) Add surfactant and deionized water into the reactor, heat to 85°C and stir for 30 minutes;

[0070] 2) Add hydroxy acid zinc salt and hair conditioner in sequence, turn on cooling water to cool down, and stir evenly;

[0071] 3) Then cool to below 45°C, add oil, preservative, essence, citric acid and salt, stir evenly, filter out the material, and obtain a shampoo composition.

[0072] Example 4

[0073] An oil-controlling and anti-dandruff shampoo composition is prepared from the following components by weight:

[0074]

[0075]

[0076] Its preparation process is:

[0077] 1) Add surfactant and deionized water into the reactor, heat to 85°C and stir for 30 minutes;

[0078] 2) Add hydroxy acid zinc salt and hair conditioner in sequence, turn on cooling water to cool down, and stir evenly;

[0079] 3) Then cool to below 45°C, add oil, preservative, essence, citric acid and salt, stir evenly, filter out the material, and obtain a shampoo composition.

[0080] Example 5

[0081] An oil-controlling and anti-dandruff shampoo composition, wherein the raw material components include, by weight:

[0082]

[0083] Its preparation process is:

[0084] 1) Add surfactant and deionized water into the reactor, heat to 85°C and stir for 25 minutes;

[0085] 2) Add hydroxy acid zinc salt and hair conditioner in sequence, turn on cooling water to cool down, and stir evenly;

[0086] 3) Then cool to below 45°C, add oil, preservative, essence, citric acid and salt, stir evenly, filter out the material, and obtain a shampoo composition.

[0087] Comparative Example 1

[0088] Compared with Example 1, the shampoo in Comparative Example 1 does not contain zinc citrate, and other operations are the same as those in Example 1.

[0089] Comparative Example 2

[0090] Compared with Example 1, the shampoo in Comparative Example 2 is prepared by replacing the zinc citrate with zinc pyrithione (ZPT) in equal parts (by weight), and the other operations are the same as those in Example 1.

[0091] The following is the content of the efficacy test example of the oil-controlling anti-dandruff shampoo composition of the present invention.

[0092] Efficacy Test Example 1

[0093] Oil control effect test:

[0094] Test method: Use the skin oil tester Sebumeter SM815 to test the skin oil content. The oil content test uses the world-recognized SEBUMETER method, which is based on the principle of photometry. After a 0.1mm thick special matte tape absorbs the oil on the human skin, it will become a translucent tape, and its light transmittance will change. The more oil it absorbs, the greater the light transmittance will be, so the skin oil content can be measured. By comparing the sebum content of the test subjects before and after 7 days of using shampoo, its oil control effect is reflected.

[0095] 180 volunteers with flat hair and oily hair, aged 23 to 40 years old, 90 men and 90 women, were recruited for a full head test. Among them, 30 people were tested for each shampoo sample, including 15 boys and 15 girls. They washed their hair every three days and used it for 1 week. Before the test, the subjects sat quietly in a laboratory with a temperature of 21℃±1℃ and a humidity of 50%RH±10%RH for 30 minutes, and then the basic oil content of the scalp of the subjects was tested with an oil tester (D0). After using the shampoo for 7 consecutive days, the oil content was retested (D7), and the average change rate and its P value were calculated.

[0096] Results: As shown in Table 1, the sebum content of the test volunteers before and after use was calculated, and the improvement rate after using the test product for 7 days was calculated. The statistical difference P value was <0.05.

[0097] Table 1 Statistical table of oil control test results of oil control anti-dandruff shampoo (oil content)

[0098]

[0099]

[0100] Note: The data in the table are mean + standard error.

[0101] Efficacy Test Example 2

[0102] Anti-dandruff effect test:

[0103] Like facial skin, the human scalp is also distributed with a variety of microorganisms, mainly including Staphylococcus, Propionibacterium and Malassezia. Studies have shown that Malassezia is an important factor in the formation and aggravation of dandruff. Malassezia can decompose triglycerides and saturated fatty acids in sebum into unsaturated fatty acids such as arachidonic acid and oleic acid by secreting lipase; these metabolites change the pH of the scalp, thereby affecting the integrity of the scalp, weakening the epidermal barrier function, leading to immune stimulation, and inducing an inflammatory response, causing keratinocytes to produce inflammatory cytokines. Substances that inhibit the activity of Malassezia can effectively inhibit the activity of Malassezia, reduce the secretion of lipase, and protect the scalp barrier, thereby achieving the effect of removing dandruff.

[0104] Experimental steps:

[0105] Test sample: Test concentration is 1.0x10 3 CFU / mL of Example and Comparative Example Shampoo;

[0106] Positive control: phosphate buffered saline (PBS) test concentration was 0.03 mol / L.

[0107] 1) Weigh an appropriate amount of sample for pretreatment;

[0108] 2) Take a 24-hour fresh slant culture of the test bacteria, wash it with PBS, and dilute it with PBS to a bacterial suspension for later use;

[0109] 3) Take a sterile test tube, add an appropriate amount of sample, place it in a 20℃±1℃ water bath for 5 minutes, then add the test bacterial suspension, mix quickly and immediately count to the specified time;

[0110] 4) Take appropriate amount of the test bacteria and sample mixture and inoculate two plates respectively, and pour the culture medium.

[0111] 5) At the same time, PBS was used instead of the sample to perform a parallel test as a positive control. The bacterial propagules were cultured at an appropriate temperature for 48 hours and the final results were observed. The test was repeated 3 times and the inhibition rate was calculated.

[0112] Calculation results:

[0113] The ability of the test sample to inhibit Malassezia is calculated to determine whether the sample has anti-dandruff effect.

[0114]

[0115] Where: A 对照 : Indicates the amount of bacteria recovered in the positive control group, in CFU / mL;

[0116] A 样品 : Indicates the amount of bacteria recovered from the tested sample group, in CFU / mL.

[0117] The test results are characterized by the antibacterial rate of the sample against Malassezia. According to the results in WS / T 650-2019 "Antibacterial and Antibacterial Effect Evaluation Method", when the antibacterial rate is ≥50%-90%, it is judged to have an antibacterial effect; when the antibacterial rate is ≥90%, it is judged to have a strong antibacterial effect, which indicates that the sample has an anti-dandruff effect.

[0118] Test results (see Table 2 below).

[0119] Table 2 Statistical table of anti-dandruff test results of shampoo (Malassezia test)

[0120]

[0121] Efficacy Test Example 3

[0122] The following are the contents of the volunteer efficacy test.

[0123] This shampoo is mainly tested in two dimensions: oil control and dandruff removal, both using consumer testing methods.

[0124] The volunteers scored the 7-day anti-dandruff effect, 7-day oil control effect and overall evaluation on a 10-point scale, with 10 points for satisfaction, 5 points for average, and 0 points for dissatisfaction.

[0125] In addition to the consumers' self-evaluation and scoring, the VisioScan VC20plus-Corneofix instrument was used to take images (before use at D0, immediately after use at D0, and at D3) to observe the amount of dandruff. Figure 1-6 shown.

[0126] The test results of the embodiments and comparative examples are shown in Table 3 below.

[0127] Table 3 Statistics of consumer test results of Examples 1-4 and Comparative Examples 1-2

[0128] Example 1 Example 2 Example 3 Example 4 Example 5 Comparative Example 1 Comparative Example 2 7-day anti-dandruff effect 7 8 9 9 9 4 6 7-day oil control effect 8 9 9 10 9 3 7 Overall Rating 7 8 9 10 8 3 6

[0129] From Table 3, Figure 1-6 It can be seen that the oil-controlling and anti-dandruff shampoo of the present invention can significantly reduce the dandruff phenomenon after being used for 7 days, and has the effects of oil control and anti-dandruff.

[0130] In summary, the oil-controlling and anti-dandruff shampoo composition of the present invention has good oil-controlling and anti-dandruff effects, and the effects are comparable to those of the traditional anti-dandruff agent zinc pyrithione (ZPT).

[0131] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Therefore, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An oil-controlling anti-dandruff shampoo composition containing zinc salt of hydroxy acid, characterized in that: Calculated by weight percentage, it is composed of the following components: Hydroxy acid zinc salt compound 0.05-2%, surfactant 5-20%, hair conditioner 0.15-1%, oil 0.2-2%, preservative 0.2-1.2%, flavor 0.1-1.0%, citric acid 0.05-0.1%, salt 0.1-1.5%, and water as the balance.

2. The oil-controlling and anti-dandruff shampoo composition according to claim 1, characterized in that: The hydroxy acid zinc salt compound has one or more carboxylic acid zinc salts.

3. The oil-controlling anti-dandruff shampoo composition according to claim 1 or 2, characterized in that: The hydroxy acid in the hydroxy acid zinc salt compound is selected from α-hydroxy acids; preferably selected from lactic acid, alginic acid, citric acid, hyaluronic acid, gluconic acid, glycyrrhizic acid and mixtures thereof; and more preferably selected from at least one of citric acid and glycyrrhizic acid.

4. The oil-controlling anti-dandruff shampoo composition according to claim 1 or 2, characterized in that: The zinc salt in the hydroxy acid zinc salt compound contains 1, 2 or 3 or more zinc ions; the source of the zinc ions is selected from zinc carbonate, zinc oxide, zinc acetate or a mixture thereof; and is preferably selected from zinc carbonate.

5. The oil-controlling and anti-dandruff shampoo composition according to any one of claims 1 to 4, characterized in that: The amount of the zinc salt of hydroxy acid compound in the composition is preferably 0.2-2% relative to the total weight of the oil-controlling and anti-dandruff shampoo composition.

6. The oil-controlling and anti-dandruff shampoo composition according to claim 1, characterized in that: The surfactant is at least one or two or more of anionic surfactant, amphoteric surfactant and nonionic surfactant; The anionic surfactant is at least one or two or more of sodium laureth sulfate, sodium lauryl sulfate, sodium cocoyl sarcosinate, sodium lauroyl sarcosinate, sodium cocoyl glutamate, sodium lauroyl glutamate, and sodium alpha olefin sulfonate; The amphoteric surfactant is at least one or two or more of cocamidopropyl betaine, sodium cocoamphoacetate, and sodium lauroamphoacetate; The nonionic surfactant is at least one or two or more of cocamide MEA, cocamide methyl MEA and cocamide DEA.

7. The oil-controlling and anti-dandruff shampoo composition according to claim 1, characterized in that: The hair conditioning agent is at least one or two or more of guar gum hydroxypropyltrimonium chloride, polyquaternium-10, polyquaternium-11, polyquaternium-7, polyquaternium-22, polyquaternium-28, polyquaternium-55, α-glucan, β-glucan, glucan hydroxypropyltrimonium chloride, α-glucan hydroxypropyltrimonium chloride, Platycladus orientalis leaf and Polygonum multiflorum complex, and soapberry fruit extract; The oil is at least one or two or more of polydimethylsiloxane, polydimethylsiloxane alcohol, amino silicone oil, PEG-7 water-soluble oil, and ethylene glycol distearate; The preservative is at least one or two or more of sodium benzoate, phenoxyethanol, kasone, p-hydroxyacetophenone, and DMDM ​​hydantoin.

8. The oil-controlling and anti-dandruff shampoo composition according to any one of claims 1 to 7, characterized in that: The pH of the oil-control anti-dandruff shampoo composition is less than 7, preferably less than 6, and more preferably 5.0-6.

0.

9. A method for preparing the oil-controlling and anti-dandruff shampoo composition according to any one of claims 1 to 8, characterized in that: The following steps are involved: 1) Add surfactant and deionized water into the reactor, heat to 75-85°C and stir for 20-30 minutes; 2) Add the hydroxy acid zinc salt compound and the hair conditioner in sequence, turn on the cooling water to cool down, and stir evenly; 3) Then cool to below 45° C., add oil, preservative, essence, citric acid and salt, stir evenly, filter out the material, and obtain the oil-controlling and anti-dandruff shampoo composition.

10. An oil-controlling and anti-dandruff shampoo composition containing zinc salt of hydroxy acid, which can effectively inhibit Malassezia and reduce the oil content of scalp. It is applied to shampoo products and has good oil-controlling and anti-dandruff effects.

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