Shower gel and preparation method thereof
By combining a specific ratio of viscosity modifiers and surfactants with antibacterial agents such as *Gynostemma pentaphyllum* extract and tea polyphenols, the viscosity instability of the shower gel under temperature changes is solved, achieving stable cleaning and antibacterial effects at both high and low temperatures.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XIAMEN ROSEMARY BIOTECHNOLOGY CO LTD
- Filing Date
- 2026-02-06
- Publication Date
- 2026-05-05
AI Technical Summary
Existing shower gels exhibit significantly increased viscosity at low temperatures and significantly decreased viscosity at high temperatures, resulting in poor cleaning performance and negatively impacting the user experience.
The product uses a specific ratio of viscosity modifiers and surfactants, including cocamide MEA, PEG-120 methyl glucoside, sodium carboxymethyl starch, acrylate copolymer and sodium chloride, combined with antibacterial agents such as philodendron extract and tea polyphenols, to regulate the temperature stability and antibacterial properties of the shower gel.
It maintains suitable viscosity under high and low temperature conditions to ensure the stability of cleaning effect and user experience, while providing broad-spectrum antibacterial and antioxidant properties.
Smart Images
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Abstract
Description
Technical Field
[0001] This application relates to the field of daily chemical products, and in particular to a shower gel and its preparation method. Background Technology
[0002] Shower gel is a liquid cleanser used on the body during bathing. Compared to the face, the body produces less sebum and sweat; however, the apocrine glands that secrete sweat and produce body odor are almost everywhere on the body. Essentially, shower gel is a skin cleanser used on areas other than the face, designed to cleanse and moisturize the skin, removing dirt, oil, and sweat from the skin's surface. With the continuous improvement of people's living standards, shower gel has become increasingly popular due to its convenience and effective cleaning power, gradually replacing soap as an essential household item.
[0003] Existing shower gel components include water, surfactants, pH adjusters, and viscosity modifiers. Surfactants form micelles in water; the volume of these micelles expands with increasing temperature, reducing resistance to movement and causing the shower gel to become thinner and more difficult to lather. This makes it harder to control the amount used and more difficult to lather. Furthermore, lower viscosity makes sedimentation and stratification more likely, further affecting cleaning effectiveness. Conversely, at low temperatures, micelles shrink and become more entangled, leading to increased viscosity and making extrusion difficult. Even if extruded with effort, the overly thick system is difficult to spread quickly and evenly, failing to produce fine foam and impacting cleaning effectiveness and user experience. Summary of the Invention
[0004] The main objective of this application is to propose a shower gel and its preparation method, which aims to solve the problem that the viscosity of existing shower gels increases significantly at low temperatures and decreases significantly at high temperatures.
[0005] In a first aspect, the present application provides a shower gel comprising the following raw materials in parts by weight: 65-70 parts water, 0.05-0.3 parts disodium EDTA, 20-30 parts surfactant, 7-12 parts viscosity modifier, 0.3-0.7 parts acidic pH adjuster, 0.3-0.5 parts phenoxyethanol, 0.4-0.8 parts antibacterial agent, and 0.2-0.4 parts fragrance; The antibacterial agent includes *Gynostemma pentaphyllum* extract and tea polyphenols, and the weight ratio of *Gynostemma pentaphyllum* extract to tea polyphenols is (2~3):1; The viscosity modifier comprises cocamide MEA, PEG-120 methyl glucoside, sodium carboxymethyl starch, acrylic acid-acrylate copolymer, and sodium chloride, wherein the weight ratio of cocamide MEA, PEG-120 methyl glucoside, sodium carboxymethyl starch, acrylic acid-acrylate copolymer, and sodium chloride is (2.5~3.5):(1.5~2.2):(0.5~1.4):(0.5~1.4):0.5.
[0006] By employing the above technical solution, a viscosity modifier formed by combining cocamide MEA, PEG-120 methyl glucoside, sodium carboxymethyl starch, acrylic acid-acrylate copolymer, and sodium chloride in a specific ratio, and compounded with a surfactant, results in a shower gel with strong temperature stability, maintaining suitable viscosity under both high and low temperature conditions. Cocamide MEA significantly increases the viscosity of the liquid and forms a stable foam film. PEG-120 methyl glucoside is a mild surfactant whose molecular structure interferes with the crystallization process of cocamide MEA at low temperatures, ensuring the product's uniformity and flowability at low temperatures. Sodium carboxymethyl starch is a thixotropic thickener that provides excellent suspension ability, preventing the precipitation of certain functional components in the product; it also imparts excellent suspension flowability and anti-sagging properties. Acrylic acid-acrylate copolymer thickens by swelling in water to form a three-dimensional network structure, similar to sodium carboxymethyl starch, exhibiting excellent suspension ability and improving the product's high and low temperature stability. Sodium chloride, as a low-cost thickener, can increase viscosity, improve emulsion stability, and reduce costs at appropriate concentrations.
[0007] This antibacterial agent, formulated with a blend of *Botrytis cinerea* extract and tea polyphenols, exhibits broad-spectrum antibacterial activity. *Botrytis cinerea* extract contains a high content of alkaloids, such as sanguinarine, which can effectively and rapidly disrupt cell membranes and inhibit enzymes, thus exerting its antibacterial effect. Tea polyphenols primarily achieve broad-spectrum antibacterial activity through increased membrane permeability, enzyme activity inhibition, and biofilm disruption. Both *Botrytis cinerea* extract and tea polyphenols act on different stages of the bacterial life cycle; when used together, they have a strong antibacterial effect, effectively combating a wider range of bacteria and fungi. Furthermore, tea polyphenols possess antioxidant properties, ensuring that the active ingredients in the *Botrytis cinerea* extract are not oxidized and degraded, thereby guaranteeing the product's antibacterial efficacy.
[0008] Disodium EDTA can chelate metal ions, reducing their irritation to the skin and preventing precipitation between metal ions and surfactants, thus ensuring product stability. Acidic pH adjusters are used to adjust the pH value of shower gels.
[0009] Optionally, the weight ratio of the viscosity modifier to the surfactant is (9~11):(25~28).
[0010] By adopting the above technical solution and controlling the ratio of viscosity modifier to surfactant, a shower gel with suitable viscosity can be obtained, ensuring the viscosity stability of the shower gel under high and low temperature environments.
[0011] Optionally, the weight ratio of the cocoamide MEA, the PEG-120 methyl glucoside dioleate, the sodium carboxymethyl starch, the acrylate-acrylate copolymer, and the sodium chloride is 3:2:1:1:0.5.
[0012] By adopting the above technical solution and further controlling the dosage ratio of cocoamide MEA, PEG-120 methyl glucoside dioleate, sodium carboxymethyl starch, acrylic acid-acrylate copolymer and sodium chloride, the temperature stability of the shower gel can be further improved.
[0013] Optionally, the weight ratio of the antibacterial agent to the disodium ethylenediaminetetraacetate is 0.6:0.1.
[0014] By adopting the above technical solution, disodium ethylenediaminetetraacetate can effectively complex metal ions, providing a stable antibacterial environment for the antibacterial agent and ensuring the antibacterial effect.
[0015] Optionally, the weight ratio of the extract of *Botrytis cinerea* to the tea polyphenols is 2.5:1.
[0016] By adopting the above technical solution and further controlling the ratio of *Botrytis cinerea* extract and tea polyphenols, the antibacterial properties of the prepared shower gel can be further improved.
[0017] Optionally, the preparation method of the *Lysimachia christinae* extract includes the following steps: (1) Dry and crush the whole herb of Bo Luo Hui, add the crushed material to an ethanol solution for ultrasonic extraction, filter, and obtain filtrate; (2) The filtrate obtained in step (1) is concentrated under reduced pressure. The concentrated product obtained is mixed with silica, stirred thoroughly, and spray-dried to obtain the extract of Bo Luo Hui.
[0018] By adopting the above technical solutions, the extract of *Boluohui* obtained by ultrasonic extraction, vacuum concentration and spray drying has a high content of antibacterial active ingredients such as alkaloids, which ensures the antibacterial effect of the shower gel.
[0019] Optionally, the surfactant includes sodium fatty alcohol polyoxyethylene ether sulfate and cocamidopropyl hydroxysulfonate betaine, and the weight ratio of sodium fatty alcohol polyoxyethylene ether sulfate to cocamidopropyl hydroxysulfonate betaine is (3~5):1.
[0020] By employing the above technical solution, sodium fatty alcohol polyoxyethylene ether sulfate, an anionic surfactant, possesses both lipophilic and hydrophilic properties, capable of generating rich and stable foam, effectively removing oil and dirt from the skin surface. Cocamidopropyl hydroxysulfonate betaine, an amphoteric surfactant, can reduce the surface tension of water, generating rich and delicate foam, removing oil and dirt from the skin surface. The surfactant formed by combining sodium fatty alcohol polyoxyethylene ether sulfate and cocamidopropyl hydroxysulfonate betaine exhibits excellent degreasing and dirt-removing effects.
[0021] Preferably, the weight ratio of the sodium fatty alcohol polyoxyethylene ether sulfate and the cocamidopropyl hydroxysulfonate betaine is 4:1.
[0022] Optionally, the acidic pH adjuster is citric acid.
[0023] By adopting the above technical solution, citric acid is used as an acidic pH adjuster. Citric acid is a safe, low-cost, and readily available acid that can effectively reduce the pH value of the system, taking into account both skin gentleness and product stability.
[0024] Secondly, this application also proposes a method for preparing a shower gel as described in any of the above claims, comprising the following steps: Disodium ethylenediaminetetraacetate, surfactant, viscosity modifier, acid pH adjuster, phenoxyethanol, antibacterial agent and fragrance are added to water and stirred thoroughly to obtain the shower gel.
[0025] By adopting the above technical solution, a viscosity modifier is formed by using cocamide MEA, PEG-120 methyl glucoside dioleate, sodium carboxymethyl starch, acrylic acid-acrylate copolymer and sodium chloride in a specific ratio, and compounded with a surfactant. The resulting shower gel has strong temperature stability and maintains a suitable viscosity under high and low temperature environments.
[0026] Optionally, the method for preparing the shower gel includes the following steps: S1. Provide water and divide it into two parts to obtain the first part and the second part; take the first part of water, add disodium ethylenediaminetetraacetate under stirring, and stir thoroughly to obtain the first mixture; S2. Add sodium fatty alcohol polyoxyethylene ether sulfate and cocamidopropyl hydroxysulfonate betaine to the first mixture obtained in step S1 in sequence, and stir thoroughly to obtain the second mixture. S3. Add the acidic pH adjuster, phenoxyethanol, antibacterial agent and fragrance to the second mixture obtained in step S2, and stir thoroughly to obtain the third mixture. S4. Add the viscosity modifier to the second part of water and stir thoroughly to obtain a viscosity modifier solution. Add the viscosity modifier solution to the third mixture obtained in step S3 at a feeding rate of 0.3~0.5 parts by weight / min and stir thoroughly to obtain the shower gel.
[0027] By adopting the above technical solution, a more uniform shower gel can be obtained by controlling the order of addition of each raw material and the addition rate of the viscosity modifier during the preparation of shower gel, which helps to improve the overall performance of the shower gel.
[0028] Preferably, in step S4, the viscosity modifier is added to the second part of water and stirred thoroughly to obtain a viscosity modifier solution. The viscosity modifier solution is then added to the third mixture obtained in step S3 at a rate of 0.4 parts by weight / min and stirred thoroughly to obtain the shower gel.
[0029] In summary, this application includes at least one of the following beneficial technical effects: 1. In the technical solution of this application, disodium ethylenediaminetetraacetate can chelate metal ions, reducing the irritation of metal ions to the skin, and also preventing the precipitation of metal ions with surfactants, thus ensuring product stability. A viscosity modifier formed by using cocamide MEA, PEG-120 methyl gluconate dioleate, sodium carboxymethyl starch, acrylic acid-acrylate copolymer, and sodium chloride in a specific ratio, and compounded with surfactants, results in a shower gel with strong temperature stability, maintaining a suitable viscosity under both high and low temperature environments.
[0030] 2. Cocamide MEA significantly increases liquid viscosity and forms a stable foam film. PEG-120 methyl glucoside dioleate is a mild surfactant whose molecular structure interferes with the crystallization process of cocamide MEA at low temperatures, ensuring product uniformity and flowability at low temperatures. Sodium carboxymethyl starch is a thixotropic thickener that provides excellent suspension ability, preventing the precipitation of certain functional components in the product; it imparts excellent suspension flowability and anti-sagging properties to the product. Acrylic acid-acrylate copolymers thicken by swelling in water to form a three-dimensional network structure. Similar to sodium carboxymethyl starch, it has excellent suspension ability and improves the product's high and low temperature stability. Sodium chloride, as a low-cost thickener, can increase viscosity, improve emulsion stability, and reduce costs at appropriate concentrations.
[0031] 3. This antibacterial agent, formulated with a combination of *Botrytis cinerea* extract and tea polyphenols, possesses broad-spectrum antibacterial properties. *Botrytis cinerea* extract contains a high content of alkaloids, such as sanguinarine, which can effectively and rapidly disrupt cell membranes and inhibit enzymes, thus exerting its antibacterial effect. Tea polyphenols primarily achieve broad-spectrum antibacterial activity through increased membrane permeability, enzyme activity inhibition, and biofilm disruption. *Botrytis cinerea* extract and tea polyphenols can act on different stages of the bacterial life cycle; when used together, they exhibit a strong antibacterial effect, effectively resisting a wider range of bacteria and fungi. Furthermore, tea polyphenols possess antioxidant properties, ensuring that the active ingredients in *Botrytis cinerea* extract are not oxidized and degraded, thereby guaranteeing the product's antibacterial efficacy. Detailed Implementation
[0032] The present application will be further described in detail below with reference to the embodiments. Preparation Example 1
[0033] A method for preparing a herb extract, comprising the following steps: (1) Provide 10 parts by weight of the whole plant of *Phyllostachys edulis*, and dry the 10 parts by weight of the whole plant of *Phyllostachys edulis* in hot air at 50°C until the moisture content is 10 wt%; (2) The small fruit bolete obtained from step (1) was dried and crushed into whole herb and passed through a 60-mesh sieve. The sieved material was added to 110 parts by weight of a 60wt% ethanol solution (a mixture of anhydrous ethanol and water), and ultrasonically extracted at 60℃ with a power of 300W for 45 minutes. The mixture was then filtered and the filtrate was collected. (3) The filtrate obtained in step (2) is concentrated under an absolute pressure of 0.01 MPa and a temperature of 55°C. During the concentration process, the relative density of the concentrated product is measured by a hydrometer until a concentrated product with a relative density of 1.13 is obtained. (4) Add silica to the concentrated product obtained in step (3) and stir at a stirring rate of 200 rpm for 40 min to obtain a mixture. Spray dry the mixture. During spray drying, control the inlet air temperature to 150°C and the outlet air temperature to 75°C to obtain the extract of Bo Luo Hui.
[0034] In step (4), the silica is pharmaceutical grade silica, purchased from Nanjing Bermuda Biotechnology Co., Ltd., and the weight ratio of silica to concentrated product is 0.07:1. Examples 1-8
[0035] Examples 1-8 provide a method for preparing a shower gel. The specific raw materials and their amounts are shown in Table 1 below. The specific preparation method includes the following steps: Disodium ethylenediaminetetraacetate (EDTA-2Na), surfactant, viscosity modifier, citric acid, phenoxyethanol, antibacterial agent and fragrance were added to deionized water and stirred at a stirring rate of 15 r / min for 2 h. After standing for 1 h, the shower gel was obtained.
[0036] The surfactant was obtained by mixing sodium fatty alcohol polyoxyethylene ether sulfate and cocamidopropyl hydroxysulfonate in a weight ratio of 4:1. The sodium fatty alcohol polyoxyethylene ether sulfate was purchased from Sichuan Kulinan Technology Co., Ltd., under the brand name Huaxia Reagent. The cocamidopropyl hydroxysulfonate was purchased from Wuhan Jiyesheng Chemical Co., Ltd., with the product number A00596.
[0037] The viscosity modifier was prepared by mixing cocamide MEA, PEG-120 methyl glucoside, sodium carboxymethyl starch, acrylate copolymer, and sodium chloride in a weight ratio of 3:2:1:1:0.5. Cocamide MEA, i.e., cocoyl monoethanolamine, was purchased from Hubei Dechao Chemical Co., Ltd.; PEG-120 methyl glucoside was purchased from Hubei Guangao Biotechnology Co., Ltd.; sodium carboxymethyl starch was purchased from Shanghai Haohong Biomedical Technology Co., Ltd.; and acrylate copolymer was purchased from Shanghai Puzhen Biotechnology Co., Ltd., under the brand name Kramar.
[0038] The antibacterial agent was obtained by mixing the extract of *Polygonum hydropiper* prepared in Preparation Example 1 and tea polyphenols in a weight ratio of 2.5:1; the tea polyphenols were purchased from Shanghai Yuanye Biotechnology Co., Ltd.
[0039] The fragrance was purchased from Hangzhou Libang E-commerce Co., Ltd., under the brand name Givaudan.
[0040] Table 1. Raw material components and dosage of shower gel (unit: parts by weight) Examples 9-10
[0041] Examples 9 and 10 are based on Example 3, except that the weight percentage of the viscosity modifier remains constant at 11 parts, while the weight ratios of cocoamide MEA, PEG-120 methyl gluconate dioleate, sodium carboxymethyl starch, acrylate-acrylate copolymer, and sodium chloride are changed. All other steps remain the same as in Example 3. Specifically, In Example 9, the viscosity modifier was obtained by mixing cocamide MEA, PEG-120 methyl glucoside dioleate, sodium carboxymethyl starch, acrylic acid-acrylate copolymer and sodium chloride in a weight ratio of 2.5:1.5:0.5:0.5:0.5.
[0042] In Example 10, the viscosity modifier was obtained by mixing cocamide MEA, PEG-120 methyl glucoside dioleate, sodium carboxymethyl starch, acrylic acid-acrylate copolymer and sodium chloride in a weight ratio of 3.5:2.2:1.4:1.4:0.5. Example 11
[0043] This embodiment is based on Embodiment 3, the difference being that the mixing method has changed, while the other steps remain the same as in Embodiment 3. Specifically, The method for preparing the shower gel provided in this embodiment includes the following steps: S1. Divide 67 parts by weight of water into two parts to obtain 50 parts by weight of the first part of water and 17 parts by weight of the second part of water. Take the first part of water and add disodium ethylenediaminetetraacetate under stirring at 15 r / min. After the addition is completed, continue stirring at a stirring rate of 15 r / min for 8 min to obtain the first mixture. S2. While stirring the first mixture at 15 r / min, add sodium fatty alcohol polyoxyethylene ether sulfate and cocamidopropyl hydroxysulfonate betaine to the first mixture in sequence. After the addition is complete, continue stirring at 15 r / min for 45 min to obtain the second mixture. S3. While stirring the second mixture at 15 r / min, add citric acid, phenoxyethanol, antibacterial agent and flavoring to the second mixture. After the addition is complete, continue stirring at 15 r / min for 25 min to obtain the third mixture. S4. Add the viscosity modifier to the second part of water and stir at a stirring rate of 15 r / min for 15 min to obtain a viscosity modifier solution. While maintaining the stirring of the third mixture at 15 r / min, add the viscosity modifier solution to the third mixture at a feeding rate of 0.4 parts by weight / min. After the feeding is completed, continue stirring at a stirring rate of 15 r / min for 30 min and let it stand for 1 h to obtain the shower gel. Comparative Example 1
[0044] This comparative example is based on Example 3, except that the viscosity modifier is used in 5 parts by weight, while the other steps are the same as in Example 3. Comparative Example 2
[0045] This comparative example is based on Example 3, except that the viscosity modifier is obtained by mixing cocamide MEA, PEG-120 methyl glucoside, acrylic acid-acrylate copolymer and sodium chloride in a weight ratio of 3:2:1:0.5, and the other steps are the same as in Example 3. Comparative Example 3
[0046] This comparative example is based on Example 3, except that the viscosity modifier is obtained by mixing cocamide MEA, sodium carboxymethyl starch, acrylic acid-acrylate copolymer and sodium chloride in a weight ratio of 3:2:1:1:0.5, and the other steps are the same as in Example 3. Comparative Example 4
[0047] This comparative example is based on Example 3, except that the antibacterial agent is the extract of *Botrytis cinerea* obtained in Preparation Example 1, which does not contain tea polyphenols, while the other steps are the same as in Example 3. Performance testing
[0048] 1. The pH values of the shower gels prepared in Examples 1-11 and Comparative Examples 1-4 were tested according to GB / T 34857-2017. The pH values of the shower gels prepared in Examples 1-11 and Comparative Examples 1-4 were found to be between 4.0 and 4.6.
[0049] 2. Viscosity test: The shower gels prepared in Examples 1-11 and Comparative Examples 1-4 were subjected to viscosity tests at 5℃, 25℃ and 40℃ respectively. Experimental method: The shower gels were first kept at 5℃, 25℃ and 40℃ respectively, and then measured with an NDJ-5S digital rotational viscometer. The experimental results are shown in Table 2 below.
[0050] 3. Antibacterial test: In accordance with the relevant provisions of GB19877.2-2005 "Special Bathing Agents", bactericidal tests were conducted on the shower gels prepared in Examples 1-11 and Comparative Examples 1-4. The experimental results are shown in Table 2 below.
[0051] Table 2. Results of viscosity and antibacterial tests
[0052] Based on the experimental results of Examples 1-11, Comparative Examples 1-4, and Table 2, it can be seen that the viscosity modifier formed by using cocamide MEA, PEG-120 methyl glucoside dioleate, sodium carboxymethyl starch, acrylic acid-acrylate copolymer, and sodium chloride in a specific ratio, and compounded with surfactants, results in a shower gel with strong temperature stability, maintaining a suitable viscosity under both high and low temperature environments. *Botrytis cinerea* extract and tea polyphenols can act on different stages of the bacterial life cycle; when used together, they have a strong antibacterial effect, effectively resisting a wider range of bacteria and fungi. Furthermore, tea polyphenols have antioxidant properties, ensuring that the active ingredients in *Botrytis cinerea* extract are not oxidized and degraded, thus guaranteeing the product's antibacterial effect.
[0053] Examples 1-4 investigated the effects of surfactant and viscosity modifier dosages on shower gel performance under high and low temperature conditions. A viscosity modifier was prepared using cocamide MEA, PEG-120 methyl glucoside dioleate, sodium carboxymethyl starch, acrylate-acrylate copolymer, and sodium chloride in a specific ratio, and then compounded with a surfactant. The resulting shower gel exhibited strong temperature stability, maintaining a suitable viscosity under both high and low temperature conditions. When the weight ratio of surfactant to viscosity modifier was (25-28):(9-11), the viscosity of the prepared shower gel did not change significantly under high and low temperature conditions, maintaining a suitable viscosity compared to room temperature (25°C).
[0054] Examples 5 and 6, based on Example 3, investigated the effect of the ratio of EDTA-2Na to the antibacterial agent on the temperature stability and antibacterial properties of the prepared shower gel. EDTA-2Na can chelate metal ions, reducing the irritation of metal ions to the skin, and can also prevent the precipitation of metal ions with surfactants, ensuring product stability. Examples 7 and 8, based on Example 3, investigated the effect of changes in the amounts of surfactants, viscosity modifiers, EDTA-2Na, and other components besides the antibacterial agent on the performance of the prepared shower gel.
[0055] Examples 9 and 10, based on Example 3, investigated the effects of the proportions of cocoamide MEA, PEG-120 methyl glucoside dioleate, sodium carboxymethyl starch, acrylate-acrylate copolymer, and sodium chloride on the performance of the prepared shower gel. Example 11, based on Example 3, demonstrated that by controlling the order of addition of each raw material and the rate of addition of the viscosity modifier during the preparation of the shower gel, a more uniform shower gel could be obtained, which helps to improve the overall performance of the shower gel.
[0056] Comparative Example 1's low viscosity modifier content negatively impacted the high and low temperature stability of the resulting shower gel. Comparative Examples 2 and 3's lack of either sodium carboxymethyl starch or PEG-120 methyl gluconate negatively affected the high and low temperature stability of the resulting shower gel. Comparative Example 4's absence of tea polyphenols in its antibacterial agent composition negatively impacted the antibacterial properties of the resulting shower gel.
[0057] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the principles of this application should be covered within the scope of protection of this application.
Claims
1. A shower gel, characterized in that, The raw materials include the following parts by weight: 65-70 parts water, 0.05-0.3 parts disodium EDTA, 20-30 parts surfactant, 7-12 parts viscosity modifier, 0.3-0.7 parts acidic pH adjuster, 0.3-0.5 parts phenoxyethanol, 0.4-0.8 parts antibacterial agent, and 0.2-0.4 parts fragrance; The antibacterial agent includes *Gynostemma pentaphyllum* extract and tea polyphenols, and the weight ratio of *Gynostemma pentaphyllum* extract to tea polyphenols is (2~3):1; The viscosity modifier comprises cocamide MEA, PEG-120 methyl glucoside, sodium carboxymethyl starch, acrylic acid-acrylate copolymer, and sodium chloride, wherein the weight ratio of cocamide MEA, PEG-120 methyl glucoside, sodium carboxymethyl starch, acrylic acid-acrylate copolymer, and sodium chloride is (2.5~3.5):(1.5~2.2):(0.5~1.4):(0.5~1.4):0.
5.
2. The shower gel according to claim 1, characterized in that, The weight ratio of the viscosity modifier to the surfactant is (9~11):(25~28).
3. The shower gel according to claim 1, characterized in that, The weight ratio of the cocoamide MEA, the PEG-120 methyl glucoside dioleate, the sodium carboxymethyl starch, the acrylic acid-acrylate copolymer, and the sodium chloride is 3:2:1:1:0.
5.
4. The shower gel according to claim 1, characterized in that, The weight ratio of the antibacterial agent to the disodium ethylenediaminetetraacetate is 0.6:0.
1.
5. The shower gel according to claim 1, characterized in that, The weight ratio of the *Botrytis cinerea* extract to the tea polyphenols is 2.5:
1.
6. The shower gel according to claim 1, characterized in that, The preparation method of the extract of *Euphorbia lathyris* includes the following steps: (1) Dry and crush the whole herb of Bo Luo Hui, add the crushed material to an ethanol solution for ultrasonic extraction, filter, and obtain filtrate; (2) The filtrate obtained in step (1) is concentrated under reduced pressure. The concentrated product obtained is mixed with silica, stirred thoroughly, and spray-dried to obtain the extract of Bo Luo Hui.
7. The shower gel according to claim 1, characterized in that, The surfactant comprises sodium fatty alcohol polyoxyethylene ether sulfate and cocamidopropyl hydroxysulfonate betaine, and the weight ratio of sodium fatty alcohol polyoxyethylene ether sulfate to cocamidopropyl hydroxysulfonate betaine is (3~5):
1.
8. The shower gel according to claim 1, characterized in that, The acidic pH adjuster is citric acid.
9. A method for preparing a shower gel as described in any one of claims 1 to 8, characterized in that, Includes the following steps: Disodium ethylenediaminetetraacetate, surfactant, viscosity modifier, acid pH adjuster, phenoxyethanol, antibacterial agent and fragrance are added to water and stirred thoroughly to obtain the shower gel.
10. The method for preparing the shower gel according to claim 9, characterized in that, Includes the following steps: S1. Provide water and divide it into two parts to obtain the first part and the second part; take the first part of water, add disodium ethylenediaminetetraacetate under stirring, and stir thoroughly to obtain the first mixture; S2. Add sodium fatty alcohol polyoxyethylene ether sulfate and cocamidopropyl hydroxysulfonate betaine to the first mixture obtained in step S1 in sequence, and stir thoroughly to obtain the second mixture. S3. Add the acidic pH adjuster, phenoxyethanol, antibacterial agent and fragrance to the second mixture obtained in step S2, and stir thoroughly to obtain the third mixture. S4. Add the viscosity modifier to the second part of water and stir thoroughly to obtain a viscosity modifier solution. Add the viscosity modifier solution to the third mixture obtained in step S3 at a feeding rate of 0.3~0.5 parts by weight / min and stir thoroughly to obtain the shower gel.