A shower gel and a method for preparing a shower gel
By combining surfactants and microbeads, the contradiction between foam stability and easy rinsing is resolved, resulting in a shower gel with high foam volume, stability, and easy rinsing, thus improving cleaning and skin care effects.
Patent Information
- Application Number
- CN202310882746.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-07-19
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2043-07-19
AI Technical Summary
Existing shower gels, even with increased foam volume and stability, are difficult to rinse off effectively, resulting in poor cleaning performance.
The foam stability and quantity are enhanced by a compound of sodium dodecyl ether sulfate, octenyl succinate starch ester and lauryl ether-6 carboxylic acid, and the foam density and rinseability are improved by components in the soft beads such as palm kernel oleic acid-N-ethylethanolamide and ethyl hydroxyethyl cellulose.
It achieves stable and dense foam while being easy to rinse, enhancing cleaning effectiveness and skin nourishment.
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Figure BDA0004345294280000061 
Figure BDA0004345294280000071
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of daily necessities, in particular to a shower gel and a preparation method of the shower gel. BACKGROUND
[0002] With the development of the times, when choosing a shower gel, the user may choose some multifunctional shower gels, such as moisturizing, refreshing, skin care, more foam and stronger cleaning power, easy to rinse, etc.
[0003] Because the foam has certain viscosity, some existing shower gels are generally less foaming and have poor foam stability in order to facilitate cleaning when the shower gel is used, and thus can be easily rinsed; however, as the cleaning ability of the shower gel is required to be improved, i.e., a shower gel with more foam and stable foam is needed, so that better cleaning effect can be achieved during cleaning, but at the same time, when the foam amount is increased and the foam stability is enhanced, the problem of easy rinsing of the foam still needs to be solved. SUMMARY
[0004] In order to make the shower gel have stability while being easily rinsed when used, the present application provides a shower gel and a preparation method of the shower gel.
[0005] The present application provides a shower gel, which adopts the following technical scheme:
[0006] A shower gel, comprising a phase A component, a phase B component and a soft bead;
[0007] The phase A comprises the following components in parts by weight: sodium dodecyl ether sulfate 3-5 parts, octenyl succinate starch sugar ester 3-5 parts, lauryl polyether-6 carboxylic acid 3-5 parts, glycerol 0.5-1 part, preservative 0.2-0.5 part, deionized water: 45-55 parts;
[0008] The phase B comprises the following components in parts by weight: plant oil 0.01-0.05 parts, white oil 15-20 parts, Tween 5-8 parts, fragrance 0.3-0.8 parts;
[0009] The soft bead is 0.2-0.5 parts.
[0010] The lauryl alcohol polyether-6 carboxylic acid and the sodium dodecyl ether sulfate are compounded to produce dense foam, the lauryl alcohol polyether-6 carboxylic acid can form a carboxylic acid salt in the sodium dodecyl ether sulfate system, the carboxylic acid salt contains two hydrophilic groups EO chain and carboxyl, the hydration capacity of the molecule is increased, the hydrogen bond interaction and mutual cross-winding between the molecules in the liquid make the surface of the foam have strength, so that the foam is dense and has stability, the octenyl succinate starch ester and the sodium dodecyl ether sulfate are compounded to increase the amount of foam and enhance the stability of the foam, so that the lauryl alcohol polyether-6 carboxylic acid, the sodium dodecyl ether sulfate and the octenyl succinate starch ester can simultaneously increase the amount and stability of the foam, the produced foam is dense and comfortable, and when the shower gel is used up and needs to be rinsed, the octenyl succinate starch ester can also make the foam easy to be rinsed off when water is flushed.
[0011] Preferably, the soft beads comprise a shell and a core material, the core material comprises the following components, and the weight ratio of each component to the soft beads is: lactose 50-90 parts, cellulose 5-30 parts, ethyl hydroxyethyl cellulose 1-10 parts, hydroxypropyl methyl cellulose 1-10 parts, jojoba ester 0.1-4 parts, colorant 0.1-3 parts, tocopheryl acetate 0.1-1 part, ascorbyl palmitate 0.1-1 part, and palmitoleic acid-N-ethyl ethanolamide 0.5-1 part.
[0012] By adopting the above technical scheme, the components in the core material can be better protected by the shell when not in use, ensuring the effect of the components; the ethyl hydroxyethyl cellulose and the hydroxypropyl methyl cellulose are compounded to better ensure the consistency and improve the foam stability of the shower gel when in use. When the soft beads are kneaded, the palmitoleic acid-N-ethyl ethanolamide is compounded with the lauryl alcohol polyether-6 carboxylic acid to form a mixed micelle, which makes the foam more dense in the process of forming foam by kneading, and the foam stability is improved by cooperating with the ethyl hydroxyethyl cellulose and the hydroxypropyl methyl cellulose, which can better play a cleaning role.
[0013] Preferably, it also comprises 1-2 parts of an acrylate copolymer.
[0014] By adopting the technical scheme, the acrylate copolymer can thicken, improve the foaming capacity of the system when the shower gel is shaken, improve the suspension capacity of the soft beads, and make the soft beads flow out more uniformly with the system when the shower gel is poured, so that the soft beads can be poured out for use to play a role when the shower gel is used; after the soft beads are punctured, the acrylate copolymer plays an auxiliary emulsifying role on the palm kernel oil acid-N-ethyl ethanolamide, so that the palm kernel oil acid-N-ethyl ethanolamide can form more stable mixed micelles with guaiacol polyether-6 carboxylic acid after being punctured, so that the foam is more dense.
[0015] Preferably, the core material of the soft beads further comprises glyceryl caprylate / caprate 1-2 parts.
[0016] By adopting the technical scheme, the dispersibility of the core material can be improved, so that the components of the core material can be more uniformly applied to the skin to play a role after the soft beads are punctured.
[0017] Preferably, the plant oil is selected from one or more of coconut oil, olive oil, and sweet almond oil.
[0018] In still another aspect, the application provides a preparation method of the shower gel; for preparing the above-mentioned shower gel, deionized water is poured into a stirring pot, the stirring pot is adjusted to a rotation speed of 10-15 r / min, glycerol and a preservative are sequentially added and stirred for 5-8 min; sodium dodecyl ether sulfate, octenyl succinate starch sugar ester, and lauryl polyether-6 carboxylic acid are added together and stirred for 28-35 min until completely dispersed and dissolved; the B-phase material is added to the oil pot and stirred for 8-10 min until completely dispersed and uniform; the B-phase is extracted into the A-phase and homogenized for 5-8 min, the soft beads are added and stirred for 2-5 min, and then the stirring is continued for 12-15 min until completely dispersed and uniform, and then the pot is taken out and filled, and the filling is performed while stirring.
[0019] The soft beads are prepared by the following steps: adding raw materials according to the weight ratio of the core material components, stirring at a temperature of 20-25℃, and then standing for 55-65 min to obtain the core material; the shell is made of β-cyclodextrin, 10-13 g of β-cyclodextrin is dispersed in ionized water at 75-80℃, and the β-cyclodextrin aqueous solution is obtained by sufficient stirring, the core material and the β-cyclodextrin aqueous solution are mixed in a mass percentage of 1-2:3-5, stirred at 48-52℃ for 1.8-2 h, and then stood at -5--2℃ for 6-8 h, the mixed solution is centrifuged at 3-6℃ and 4800-5000*g for 13-15 min, and then filtered to obtain the mixture, which is washed 3-5 times with 1 vol% ethanol water solution to obtain the soft beads.
[0020] The octenyl succinate starch ester is prepared by the following steps: using octenyl succinic anhydride and starch sugar as raw materials, and through esterification reaction according to the molar ratio of octenyl succinic anhydride to starch sugar of 0.5:1.
[0021] The palm kernel oil acid-N-ethyl ethanolamide is prepared by the following steps: in a device equipped with stirring, heating, temperature control, reflux condensation and nitrogen protection, using palm kernel oil, ethyl ethanolamine and sodium hydroxide as raw materials, reacting at a temperature of 35-40℃ for 40-48h, and obtaining palm kernel oil acid-N-ethyl ethanolamide after reaction.
[0022] In summary, the present application includes at least one of the following beneficial effects:
[0023] 1. By setting A phase and B phase, due to the action of sodium dodecyl ether sulfate, octenyl succinate starch ester and lauryl polyether-6 carboxylic acid surfactant, the shower gel is in a layered state of upper layer milky white and lower layer translucent color, and the soft beads are suspended in the shower gel. Shake before use, the soft beads will be suspended in the liquid for a certain period of time without sinking to the bottom, which is convenient for use; the lauryl polyether-6 carboxylic acid and sodium dodecyl ether sulfate, octenyl succinate starch ester are compounded to make the shower gel better in the form of cream when shaken, and the soft beads are better suspended and distributed in the system when poured out for use. When the soft beads are kneaded, the nutrients in the soft beads will be absorbed by the skin, achieving the effect of nourishing the skin with oil.
[0024] 2. The palm kernel oil acid-N-ethyl ethanolamide also has the effect of resisting oxidation, so that it can better maintain the antioxidant ability when stored in the soft beads, and can be better absorbed by the skin after the soft beads are pierced, achieving better antioxidant effect. DETAILED DESCRIPTION
[0025] The present application is further described in detail by the following specific examples.
[0026] The soft beads are prepared as follows, for example:
[0027] Preparation Example 1: The weight ratio of the components of the core material is: lactose 60 parts, cellulose 20 parts, ethyl hydroxyethyl cellulose 8 parts, hydroxypropyl methyl cellulose 8 parts, jojoba ester 2 parts, colorant: 1 part, tocopheryl acetate 0.5 parts, ascorbyl palmitate 0.5 parts, palm kernel oil acid-N-ethyl ethanolamide 0.8 parts; add the raw materials according to the above weight parts, stir at 23℃ temperature and then stand for 60min to obtain the core material; disperse 12g of β-cyclodextrin in ionized water at 78℃, and fully stir to obtain a β-cyclodextrin aqueous solution; mix the core material with the β-cyclodextrin aqueous solution at a mass percentage of 1:4, stir at 50℃ for 2h, stand at -3℃ for 8h, centrifuge the mixed solution at 5℃ and 5000*g for 13min, and then suction filter to obtain the mixture, which is washed 4 times with 1vol% ethanol aqueous solution to obtain the soft beads.
[0028] Preparation Example 2: The difference from Preparation Example 1 is that the components of the core material further include glyceryl caprylocaprate 2 parts.
[0029] Preparation Example 3: The difference from Preparation Example 2 is that ethyl hydroxyethyl cellulose 6 parts and hydroxypropyl methyl cellulose 10 parts are used, and the other components are the same as those in Preparation Example 2.
[0030] Preparation Example 4: The difference from Preparation Example 2 is that palm kernel oil acid-N-ethyl ethanolamide 1 part is used, and the other components are the same as those in Preparation Example 2.
[0031] Preparation Example 5: The difference from Preparation Example 2 is that palm kernel oil acid-N-ethyl ethanolamide 0.5 parts is used, and the other components are the same as those in Preparation Example 2.
[0032] Preparation Example 6: The difference from Preparation Example 2 is that ethyl hydroxyethyl cellulose is not used, and the other components are the same as those in Preparation Example 2.
[0033] Preparation Example 7: The difference from Preparation Example 2 is that palm kernel oil acid-N-ethyl ethanolamide is not used, and the other components are the same as those in Preparation Example 2.
[0034] Preparation Example 8: The difference from Preparation Example 2 is that ethyl hydroxyethyl cellulose and palm kernel oil acid-N-ethyl ethanolamide are not used, and the other components are the same as those in Preparation Example 2.
[0035] In the embodiments of the present application:
[0036] Tween uses Tween 20; white oil uses 26# white oil; colorant uses CI73360;
[0037] Preparation of starch octenyl succinate: 0.5mol of octenyl succinic anhydride and 1mol of starch sugar are used as raw materials to obtain by esterification.
[0038] Preparation of palm kernel oil-N-ethylethanolamide: In an apparatus equipped with stirring, heating, temperature control, reflux condensation and nitrogen protection, palm kernel oil, ethylethanolamine and sodium hydroxide by weight of the following examples and comparative proportions were used as raw materials and reacted at 35°C for 46 hours to obtain palm kernel oil-N-ethylethanolamide.
[0039] Example 1:
[0040] Shower gel includes phase A, phase B, and microbeads;
[0041] Phase A: Sodium dodecyl ether sulfate 5g, octenyl succinate starch ester 5g, lauryl ether-6 carboxylic acid 5g, glycerin 0.5g, preservative 0.5g, deionized water: 55g; Phase B: Vegetable oil 0.05g, white oil 20g, Tween 8g, fragrance 0.8g; soft beads 0.5g.
[0042] In this embodiment, the flexible beads used are those prepared in Example 1.
[0043] The preparation method of the shower gel is as follows: put water into a mixing pot, adjust the speed of the mixing pot to 10 r / min, add glycerin and preservative in sequence and stir for 5 min; add sodium dodecyl ether sulfate, octenyl succinate starch ester and lauryl alcohol polyether-6 carboxylic acid together and stir for 30 min until completely dispersed and dissolved; add phase B material to the oil pot and stir for 8 min until completely dispersed and uniform; draw phase B into phase A and homogenize for 5 min, add soft beads and stir for 2 min, and continue to stir for 15 min until completely dispersed and uniform, then it can be discharged from the pot and filled. Stirring is done while filling.
[0044] Example 2:
[0045] The difference between this embodiment and Example 1 is that: 3 parts of octenyl succinic acid starch glycoester; the other components and the preparation method of the shower gel are the same as in Example 1.
[0046] Example 3:
[0047] The difference between this embodiment and Embodiment 2 is that phase A also includes 2g of acrylate copolymer; the preparation methods of other components and the shower gel are the same as in Embodiment 2.
[0048] Example 4:
[0049] The difference between this embodiment and Example 3 is that the soft beads used are those from Preparation Example 2; the other components and the preparation method of the shower gel are the same as in Example 3.
[0050] Example 5:
[0051] The difference between this embodiment and embodiment 4 is that: the amount of soft beads is 0.3g; the other components and the preparation method of the shower gel are the same as in embodiment 4.
[0052] Example 6:
[0053] The difference between this embodiment and Example 4 is that: 3g of lauryl ether-6 carboxylic acid is used; the other components and the preparation method of the shower gel are the same as in Example 4.
[0054] Example 7:
[0055] The difference between this embodiment and Embodiment 4 is that: 3g of sodium dodecyl ether sulfate; the other components and the preparation method of the shower gel are the same as in Embodiment 4.
[0056] Example 8:
[0057] The difference between this embodiment and Example 4 is that the soft beads used are the same as those in Example 3; the other components and the preparation method of the shower gel are the same as those in Example 4.
[0058] Example 9:
[0059] The difference between this embodiment and Example 4 is that the soft beads used are the same as those in Example 4; the other components and the preparation method of the shower gel are the same as those in Example 4.
[0060] Example 10:
[0061] The difference between this embodiment and Example 4 is that the soft beads used are those from Preparation Example 5; the other components and the preparation method of the shower gel are the same as in Example 4.
[0062] Comparative Example 1:
[0063] The difference between this comparative example and Example 4 is that: 6 parts of octenyl succinic acid starch glycoester; the other components and the preparation method of the shower gel are the same as in Example 4.
[0064] Comparative Example 2:
[0065] The difference between this comparative example and Example 4 is that: 2 parts of octenyl succinic acid starch glycoester; the other components and the preparation method of the shower gel are the same as in Example 4.
[0066] Comparative Example 3:
[0067] The difference between this comparative example and Example 4 is that octenyl succinate starch ester is not used; the other components and the preparation method of the shower gel are the same as in Example 4.
[0068] Comparative Example 4:
[0069] The difference between this comparative example and Example 4 is that lauryl ether-6 carboxylic acid is not used; the other components and the preparation method of the shower gel are the same as in Example 4.
[0070] Comparative Example 5:
[0071] The difference between this comparative example and Example 4 is that the soft beads used are the same as those in Preparation Example 6; the other components and the preparation method of the shower gel are the same as those in Example 4.
[0072] Comparative Example 6:
[0073] The difference between this comparative example and Example 4 is that the soft beads used are those from Preparation Example 7; the other components and the preparation method of the shower gel are the same as in Example 4.
[0074] Comparative Example 7:
[0075] The difference between this comparative example and Example 4 is that the soft beads used are the same as those in Preparation Example 8; the other components and the preparation method of the shower gel are the same as those in Example 4.
[0076] Human sensory evaluation:
[0077] To qualitatively and quantitatively measure and analyze the characteristics of samples in different dimensions using instruments and sensory methods, 320 volunteers were recruited and divided into groups of 20. Each group continuously used the shower gel of their respective group (i.e., each example and comparative example) for one month. Testers rated the shower gel based on their user experience, and follow-up surveys were conducted on the subjects every week. The rating standard used a 10-point scale, with 1 point indicating very low severity, 3 indicating low severity, 5 points indicating moderate severity, 7 points indicating high severity, and 10 points indicating very high severity. Foam volume rating (0 points for no foam, 10 points for abundant foam); foam density (0 points for weak foam, 10 points for fine and dense foam); foam stability (0 points for not adhering to the skin without rinsing, 10 points for stable adhering to the skin without rinsing); ease of rinsing (0 points for thick and difficult to rinse, 10 points for easy rinsing); and improvement in skin smoothness (0 points for no improvement, 10 points for significant improvement). The final evaluation results are shown in Table 1.
[0078] Table 1. Results of Human Sensory Evaluation
[0079]
[0080]
[0081] As can be seen from Examples 1-11, Example 4 has the best performance in all indicators and overall evaluation. According to Example 2, octenyl succinic acid starch ester has an impact on the ease of rinsing and foam stability. Acrylic ester copolymer has a positive impact on all indicators and overall evaluation. Moreover, after adding acrylate copolymer in Example 3, all indicators are higher than those without acrylate copolymer.
[0082] Compared with Example 4, Example 5 showed that the density of foam was significantly reduced after the amount of soft beads was reduced.
[0083] Example 6 shows that the amount of lauryl ether-6 carboxylic acid used affects the foam density. It can be seen that the combination of palm kernel oil-N-ethylethanolamide component in the soft beads and lauryl ether-6 carboxylic acid can improve the foaming ability of lauryl ether-6 carboxylic acid and make the foam denser.
[0084] In Example 7, after reducing the amount of sodium dodecyl ether sulfate, compared with Example 4, all indicators decreased and the overall evaluation was lower. After reducing the amount of sodium dodecyl ether sulfate, the amount of compounding with octenyl succinate starch ester and lauryl ether-6 carboxylic acid decreased, affecting the indicators. Therefore, the compounding of sodium dodecyl ether sulfate, octenyl succinate starch ester and lauryl ether-6 carboxylic acid can play a synergistic role.
[0085] Comparing Examples 9 and 10 with Example 4, it can be seen that increasing the amount of palm kernel oleic acid-N-ethylethanolamide increases the foam density, but due to the viscosity of palm kernel oleic acid-N-ethylethanolamide, the ease of rinsing is slightly reduced. When the amount of palm kernel oleic acid-N-ethylethanolamide is reduced, all evaluation indicators decrease. Therefore, the effect varies depending on the amount of palm kernel oleic acid-N-ethylethanolamide combined with other components at different amounts.
[0086] The octenyl succinate starch esters in Comparative Examples 1 and 2 are outside the scope of this application. Compared with the examples, their various indicators and overall evaluation are far lower than those of the examples in this application. The octenyl succinate starch ester can easily rinse away the foam during rinsing. However, with the increase in dosage, the octenyl succinate starch ester becomes more difficult to rinse due to its viscosity.
[0087] Compared with Example 4, Comparative Example 3 did not use octenyl succinate starch ester, and the foam volume and foam stability were both poor. Therefore, octenyl succinate starch ester can work synergistically with other components to improve foam volume and foam stability.
[0088] Compared with Example 4, Comparative Example 4 did not use lauryl ether-6 carboxylic acid, and the foam density was very poor. The foam density was also worse than that of Comparative Example 3, indicating that lauryl ether-6 carboxylic acid can improve the foam density in synergy with other components.
[0089] Compared with Example 4, Comparative Example 5 did not use ethyl hydroxyethyl cellulose, and the foam density and stability were low, indicating that ethyl hydroxyethyl cellulose can be compounded with lauryl ether-6 carboxylic acid to improve the foam density and stability.
[0090] Compared with Example 4, Comparative Example 6 did not use palm kernel oil-N-ethylethanolamide, and the foam density and stability were worse, indicating that the combination of palm kernel oil-N-ethylethanolamide and lauryl ether-6 carboxylic acid can improve the foam density and stability.
[0091] Compared with Examples 4, 5, and 6, Comparative Example 7 did not use ethyl hydroxyethyl cellulose and palm kernel oil-N-ethylethanolamide, resulting in poorer foam density and stability. This indicates that when ethyl hydroxyethyl cellulose and palm kernel oil-N-ethylethanolamide are combined, and then combined with lauryl ether-6 carboxylic acid, a more stable and denser foam can be formed, which also has a certain impact on the amount of foam.
[0092] The above are all 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 structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A body shampoo, characterized by: The A-phase component, the B-phase component and the soft beads are included; The A-phase component includes the following ingredients by weight: 3-5 parts of sodium lauryl ether sulfate, 3-5 parts of octenyl succinate starch ester, 3-5 parts of laureth-6 carboxylic acid, 0.5-1 part of glycerol, 0.2-0.5 part of preservative, 45-55 parts of deionized water, and 1-2 parts of acrylate copolymer. The B-phase component includes the following ingredients by weight: 0.01-0.05 parts of vegetable oil, 15-20 parts of white oil, 5-8 parts of Tween, 0.3-0.8 parts of essence, and 0.2-0.5 parts of soft beads. The soft beads include a shell and a core material, and the core material includes the following components, each component accounting for the weight ratio of the soft beads: 50-90 parts of lactose, 5-30 parts of cellulose, 1-10 parts of ethyl hydroxyethyl cellulose, 1-10 parts of hydroxypropyl methyl cellulose, 0.1-4 parts of jojoba ester, 0.1-3 parts of colorant, 0.1-1 part of tocopheryl acetate, 0.1-1 part of ascorbyl palmitate, 0.5-1 part of N-ethyl ethanolamide of palm kernel oil acid, and 1-2 parts of caprylocapryl glyceride. The preparation method of the shower gel is as follows: Glycerol and preservative are added into water and stirred for 5-8 min; sodium lauryl ether sulfate, octenyl succinate starch ester and laureth-6 carboxylic acid are added and stirred for 28-35 min until completely dispersed and dissolved; B-phase materials are stirred for 8-10 min until completely dispersed and uniform; B-phase is pumped into A-phase and homogenized for 5-8 min, soft beads are added and stirred for 2-5 min, and then continue to stir for 12-15 min until completely dispersed and uniform, then the product is taken out of the pot and filled, and the product is stirred while being filled; The preparation steps of the soft beads include: The core material is prepared by adding raw materials according to the weight ratio of the core material components, stirring at 20-25℃ and then standing for 55-65 min; the shell is β-cyclodextrin, 10-13 g of β-cyclodextrin is dispersed in ionized water at 75-80℃, and the β-cyclodextrin aqueous solution is obtained by sufficient stirring; the core material and the β-cyclodextrin aqueous solution are mixed at a mass percentage of 1-2:3-5, stirred at 48-52℃ for 1.8-2 h, stood at -5--2℃ for 6-8 h, centrifuged at 3-6℃ and 4800-5000*g for 13-15 min, and then filtered to obtain the mixture, which is washed 3-5 times with 1 vol% ethanol aqueous solution to obtain the soft beads.
2. The body wash according to claim 1, wherein: The vegetable oil is selected from one or more of coconut oil, olive oil and sweet almond oil.
3. The body wash according to claim 1, wherein: The preparation steps of the octenyl succinate starch ester include: using octenyl succinic anhydride and starch sugar as raw materials, and obtaining by esterification reaction according to the molar ratio of octenyl succinic anhydride to starch sugar of 0.5:
1.
4. The body wash according to claim 1, wherein: The preparation steps of the N-ethyl ethanolamide of palm kernel oil acid include: using palm kernel oil, ethyl ethanolamine and sodium hydroxide as raw materials, reacting in a device with nitrogen at 35-40℃ for 40-48 h, and obtaining the N-ethyl ethanolamide of palm kernel oil acid after reaction.
Citation Information
Patent Citations
Shower gel
CN108245444A
Cleaning composition and production method for same
WO2023017790A1