CN109481352B

CN109481352B - Silicone oil-free and sulfate-free shampoo with high conditioning performance and preparation method thereof

Info

Publication number: CN109481352B
Application number: CN201811502798.4A
Authority: CN
Inventors: 顾锦文; 张沪青; 严燕芳
Original assignee: Shanghai Fenghua Daily Necessities Co ltd
Current assignee: Shanghai Fenghua Daily Necessities Co ltd
Priority date: 2018-12-10
Filing date: 2018-12-10
Publication date: 2021-07-16
Anticipated expiration: 2038-12-10
Also published as: CN109481352A

Abstract

The application relates to a silicone-oil-free and sulfate-free shampoo with high conditioning performance, which is characterized in that the shampoo is prepared from the following raw material components in percentage by mass: 20-40% of anionic amino acid type surfactant; 10-30% of amphoteric surfactant; 0.2-0.5% of cationic conditioner; 0.7 to 1.5 percent of substituted silicone oil composition; 0.5 to 1 percent of humectant; 1.5 to 5 percent of thickening agent; 0.01-0.1% of chelating agent; 0.06-0.08% of preservative; 0.5-1% of essence; 0.1 to 0.5 percent of PH regulator; and the balance of water, wherein the sum of the mass percentages of all the raw material components is 100%. The shampoo disclosed by the invention adopts an amino acid type surfactant, so that a safe and mild cleaning formula is adopted; the PCA glyceryl oleate and the deep sea two-section mustard seed oil are adopted as the silicone oil composition to replace, so that hair is easy to be combed, smooth, soft and glossy, the problem that hair is dry and cannot be combed easily by silicone oil-free shampoo is solved, and the scalp problem caused by silicone oil accumulation is avoided.

Description

Silicone oil-free and sulfate-free shampoo with high conditioning performance and preparation method thereof

Technical Field

The application relates to the technical field of cosmetics, in particular to a shampoo with high conditioning performance, no silicone oil and no sulfate and a preparation method thereof.

Background

In recent years, people pay more attention to the safety and conditioning performance of shampoos besides the cleaning requirement, so that the shampoos without silicone oil and sulfate gradually enter the market. At present, more than 90% of shampoos in the market adopt sodium laureth sulfate or ammonium laureth sulfate as main surfactants, but trace amount of dioxane as a byproduct is generated during the production of polyether surfactants, and the dioxane becomes impurities and enters the shampoos, and can be carcinogenic. Thus, amino acid type surfactants are increasingly used in shampoos to provide milder and safer cleansing formulations.

The outermost surface of a healthy hair is lined with a plurality of hair scales, and the lipids (fatty acids) in the hair scales include: 18 methyl eicosanoic acid; palmitic acid; oleic acid. After repeated washing and permanent dyeing treatments, hair scales on the hair are damaged, sebum covering the hair scales is continuously eroded, and the hair becomes increasingly coarse, dull and difficult to comb due to continuous loss of the hydrophobic protective layer, namely the sebum. The silicone oil can form a uniform hydrophobic protective layer on the surface of the hair, and can fill up the damaged and raised positions of the hair scales, so that the hair becomes smooth and flat, and the combing property of the hair is improved. However, because silicone oil is not water-soluble, accumulation can be generated due to incomplete cleaning, and the problems of greasy hair, flat hair, pore blockage of scalp and the like are caused, so that the selection of a substitute which is really as perfect as silicone oil in use feeling and use effect is urgently needed at present.

Currently, no silicone oil shampoo is usually used for replacing silicone oil by alcohol ethers (such as PPG-3 octyl ether, oleyl polyether-5 citrate), glycerides (such as PEG-7 glyceryl cocoate, glyceryl oleate) and water-soluble plant essential oil components. These silicone oil substitutes or compositions can improve wet hair combing, but have poor dry hair combing effects, which are also the main reason for the smoothness of dry hair after most of the consumers use silicone-free shampoos.

Another trend in silicone-free hair treatment is to add oils, such as vegetable oils, as silicone oil substitutes to further condition the hair. Chinese patent CN104887578B entitled "a composition and hair conditioner with scalp care function without silicone oil" discloses the use of camellia seed oil instead of silicone oil. Chinese patent application CN106265378A entitled "silicone oil-free shampoo with scalp care effect" discloses that camellia oil is compounded with star anise oil to replace silicone oil. Chinese patent application CN106420407A entitled "children non-silicone oil shampoo with vegetable oil replacing silicone oil" discloses replacing silicone oil with one or two of shea butter oil, olive oil, macadamia nut oil, sunflower seed oil, PPG-3 octyl ether. The use of vegetable oils instead of silicone oils has the disadvantages of hydrophilic surface of the damaged hair, not being beneficial to spreading of vegetable oils, and reducing the utilization rate and efficacy of vegetable oils, so that in order to ensure that a sufficient amount of oil is spread evenly on the damaged hair, it is necessary to improve the surface hydrophobicity of the hair. The invention patent CN107468531A adds a non-volatile conditioning agent, which can play a certain conditioning effect by flocculation, but the combing property, smoothness, glossiness and softness of the dried hair are inferior to the efficacy of vegetable oil.

In order to further improve the overall conditioning properties of silicone-free shampoos, particularly the combing and smoothing properties of dry hair, it is desirable to restore the hydrophobicity of the hair surface and to spread a lipid layer on the hair surface which smoothes hair scales. Therefore, there is a need in the art to develop a silicone oil-free and sulfate salt-free shampoo with high conditioning performance and a method for preparing the same.

Disclosure of Invention

The purpose of the present application is to provide a shampoo without silicone oil and sulfate with high conditioning performance, thereby solving the technical problems in the prior art. The application provides a shampoo with high conditioning performance, no silicone oil and no sulfate, which selects an amino acid type surfactant, namely sodium lauroyl sarcosine, and is mild, safe and non-irritant. The PCA glyceryl oleate and the vegetable oil are selected to replace the silicone oil composition, so that the problem that the hair is dry and difficult to be combed in the silicone oil-free shampoo can be effectively solved, the hair is easy to be combed, smooth, soft and glossy, and the scalp problem caused by silicone oil accumulation is avoided.

The application also aims to provide a preparation method of the shampoo without the silicone oil and the sulfate, which has high conditioning performance.

In order to achieve the above object, the present application provides the following technical solutions.

In a first aspect, the application provides a shampoo without silicone oil and sulfate with high conditioning performance, which is characterized in that the shampoo is prepared from the following raw material components in percentage by mass:

the balance of water, wherein the sum of the mass percentages of all the raw material components is 100%.

In one embodiment of the first aspect, the anionic amino acid type surfactant comprises one or more of sodium lauroyl sarcosinate, sodium cocoyl methyl taurate or sodium cocoyl glutamate.

In one embodiment of the first aspect, the amphoteric surfactant comprises one or more of cocamidopropyl betaine, lauramidopropyl betaine, sodium cocoamphoacetate, or sodium lauroamphoacetate.

In one embodiment of the first aspect, the cationic conditioning agent comprises one or more of polyquaternium-7, polyquaternium-10, polyquaternium-52, guar hydroxypropyltrimonium chloride, or hydroxypropyl guar hydroxypropyltrimonium chloride.

In one embodiment of the first aspect, the pH adjusting agent is citric acid.

In one embodiment of the first aspect, the alternative silicone oil composition comprises the following components in mass percent based on the total mass of all raw material components: 0.5-1% of PCA glyceryl oleate, and 0.2-0.5% of vegetable oil.

In one embodiment of the first aspect, the vegetable oil is a deep sea canola oil.

In one embodiment of the first aspect, the humectant is a mixture of xylitol glucoside, anhydroxylitol, and xylitol.

In one embodiment of the first aspect, the thickener comprises the following components in mass percent based on the total mass of all the raw material components: 0.5-2% of glyceryl laurate and 1-3% of cocamidomethyl monoethanolamine.

In a second aspect, the present application provides a method for preparing a silicone oil-free and sulfate salt-free shampoo having high conditioning properties as described in the first aspect, characterized in that the method comprises the steps of:

(1) mixing an anionic amino acid type surfactant, an amphoteric surfactant, a chelating agent, a thickening agent and water to obtain a first reaction mixture;

(2) heating the first reaction mixture to 70-80 ℃, and uniformly mixing the first reaction mixture and a cation conditioner to obtain a second reaction mixture;

(3) cooling the second reaction mixture to 60-50 ℃, and uniformly mixing the second reaction mixture, the substitute silicone oil composition and the humectant to obtain a third reaction mixture;

(4) and cooling the third reaction mixture to below 45 ℃, and uniformly mixing the third reaction mixture, the preservative, the essence and the pH regulator to obtain the silicone oil-free and sulfate-free shampoo with high conditioning property.

In one embodiment of the second aspect, in step (2), the temperature of the first reaction mixture is raised to 70 ℃;

in step (3), the second reaction mixture is cooled to 60 ℃.

In one embodiment of the second aspect, in step (1), the thickener is a mixture of glyceryl laurate and cocamidomethyl monoethanolamine;

in the step (3), the substituted silicone oil composition is a mixture of PCA glyceryl oleate and deep sea two-section mustard seed oil;

in the step (3), the humectant is a mixture of xylitol glucoside, anhydroxylitol and xylitol.

In one embodiment of the second aspect, the method comprises the steps of:

(1) adding water, sodium lauroyl sarcosinate, cocamidopropyl betaine, EDTA disodium, glycerol laurate and cocamidomethyl monoethanolamine into a stirring pot, heating and stirring;

(2) heating to 70 deg.C, adding polyquaternium-10, stirring, and stopping heating;

(3) cooling to 60 deg.C, adding PCA glyceryl oleate, deep sea mustard seed oil, xylitol glucoside, anhydroxylitol and xylitol, and stirring;

(4) cooling to 45 ℃, adding the preservative, the essence and the citric acid, stirring uniformly, and stopping stirring to obtain the silicone oil-free and sulfate-free shampoo with high conditioning property.

Compared with the prior art, the invention has the advantages that the amino acid type surfactant is selected, the cleaning formula is safe and mild, and the risk of dioxane is avoided; the composition of PCA glyceryl oleate and deep-sea two-section mustard oil is adopted to replace silicone oil, so that a hydrophobic protective layer lost by hair scales is effectively supplemented, vegetable oil and deep-sea two-section mustard oil can stay on the surface of hair, the hair is easy to clean, smooth, soft and glossy, the problem that hair is dry and not easy to clean without silicone oil shampoo is solved, and the scalp problem caused by silicone oil accumulation is avoided.

Detailed Description

Unless otherwise indicated, implied from the context, or customary in the art, all parts and percentages herein are by weight and the testing and characterization methods used are synchronized with the filing date of the present application. Where applicable, the contents of any patent, patent application, or publication referred to in this application are hereby incorporated by reference in their entirety, and the equivalent family of patents is also incorporated by reference. To the extent that a definition of a particular term disclosed in the prior art is inconsistent with any definitions provided herein, the definition of the term provided herein controls.

The numerical ranges in this application are approximations, and thus may include values outside of the ranges unless otherwise specified. A numerical range includes all numbers from the lower value to the upper value, in increments of 1 unit, provided that there is a separation of at least 2 units between any lower value and any higher value. For example, if a compositional, physical, or other property (e.g., molecular weight, melt index, etc.) is recited as 100 to 1000, it is intended that all individual values, e.g., 100, 101,102, etc., and all subranges, e.g., 100 to 166,155 to 170,198 to 200, etc., are explicitly recited. For ranges containing a numerical value less than 1 or containing a fraction greater than 1 (e.g., 1.1, 1.5, etc.), then 1 unit is considered appropriate to be 0.0001, 0.001, 0.01, or 0.1. For ranges containing single digit numbers less than 10 (e.g., 1 to 5), 1 unit is typically considered 0.1. These are merely specific examples of what is intended to be expressed and all possible combinations of numerical values between the lowest value and the highest value enumerated are to be considered to be expressly stated in this application. It should also be noted that the terms "first," "second," and the like herein do not define a sequential order, but merely distinguish between different structures.

When used with respect to chemical compounds, the singular includes all isomeric forms and vice versa (e.g., "hexane" includes all isomers of hexane, individually or collectively) unless expressly specified otherwise. In addition, unless explicitly stated otherwise, the use of the terms "a", "an" or "the" are intended to include the plural forms thereof.

The terms "comprising," "including," "having," and derivatives thereof do not exclude the presence of any other component, step or procedure, and are not intended to exclude the presence of other elements, steps or procedures not expressly disclosed herein. To the extent that any doubt is eliminated, all compositions herein containing, including, or having the term "comprise" may contain any additional additive, adjuvant, or compound, unless expressly stated otherwise. Rather, the term "consisting essentially of … …" excludes any other components, steps or processes from the scope of any of the terms hereinafter recited, except those necessary for performance. The term "consisting of … …" does not include any components, steps or processes not specifically described or listed. Unless explicitly stated otherwise, the term "or" refers to the listed individual members or any combination thereof.

The surface of the hair is damaged after daily washing and permanent dyeing treatment, and the hydrophobic protective film 18 methyl eicosanoic acid on the outer surface layer falls off to expose groups with negative charges. The PCA glyceryl oleate is obtained by combining a natural glyceryl monooleate emulsifier with pyrrolidone carboxylic acid from natural glutamic acid, the positive charge provided by the PCA glyceryl oleate can have good hydrophobic effect with hair, effectively supplement a hydrophobic protective layer lost by hair scales, recover a hydrophobic layer on the surface of the hair, facilitate the stay of vegetable oil, reduce the addition of the vegetable oil and can show better combing property.

The crambe japonica oil is also called crambe seed oil, the crambe japonica is a herbaceous plant of 1 year, can grow to about 60-90 cm high, and grows into very small white flowers, and once the harvest period is reached, the harvested seeds contain 26-35% of grease. The two sections of deep sea mustard seed oil is rich in Omega 3, Omega 6 and long-chain fatty acid docosenoic acid, so that the two sections of deep sea mustard seed oil has excellent natural stability, and has light texture and no greasy feeling after being used, which is attributed to the unique oil nutritional composition. Because of its high stability, it is an ideal natural substitute for silicone oil. It has effects in nourishing hair follicle, forming thin protective film to protect scalp from damage of surfactant or hair dye, spreading on hair surface to supplement lipid layer to smooth hair scale, and caring hair.

Xylitol is a polyalcohol, is often used as a humectant, has the effects of moisturizing, repairing skin and the like, can be used as a moisture regulator of cosmetics and has no stimulation to human skin. The mixture of the three efficient humectants, namely xylitol glucoside, anhydroxylitol and xylitol, is a novel polysaccharide humectant extracted from plants, and can promote the increase of the content of GAGs (hyaluronic acid and chondroitin sulfate) and improve the moisture content of epidermis; promoting ceramide synthesis, enhancing skin barrier function, and reducing water loss. Has the effects of 3D hydration moisturizing, water circulation from inside to outside, and skin and hair barrier protection enhancement.

In one specific embodiment, the application provides a shampoo without silicone oil and sulfate with high conditioning performance, which is characterized by being prepared from the following components in percentage by mass: 20-40% of sodium lauroyl sarcosinate, 10-30% of cocamidopropyl betaine, 100.2-0.5% of polyquaternary ammonium salt, 0.7-1.5% of a substituted silicone oil composition, 0.5-1% of a humectant, 1.5-5% of a thickening agent, 0.01-0.1% of a chelating agent, 0.06-0.08% of a preservative, 0.5-1% of an essence, 0.1-0.5% of citric acid and the balance of water.

In a specific embodiment, the substitute silicone oil composition comprises the following components in percentage by mass: 0.5-1% of PCA glyceryl oleate and 0.2-0.5% of vegetable oil.

In one embodiment, the vegetable oil is preferably deep sea canola oil.

In one embodiment, the humectant is preferably a mixture of xylitol glucoside/anhydroxylitol and xylitol alcohol humectants.

In a specific embodiment, the thickener comprises the following components in percentage by mass: 0.5-2% of glycerol laurate and 1-3% of cocoamide methyl monoethanolamine.

In one embodiment, the present application provides a method for preparing a shampoo without silicone oil and sulfate with high conditioning performance, which is characterized by comprising the following steps:

(4) cooling to 45 ℃, adding the preservative, the essence and the citric acid, stirring uniformly, and stopping stirring to obtain the shampoo without silicone oil and sulfate with high conditioning property.

Examples

The technical solutions of the present application will be clearly and completely described below with reference to the embodiments of the present application. The reagents and raw materials used are commercially available unless otherwise specified. The experimental methods without specifying specific conditions in the following examples were selected according to the conventional methods and conditions, or according to the commercial instructions.

Sodium lauroyl sarcosinate was purchased from the company, Tench high New materials, Inc., Guangzhou at a concentration of 30% by mass.

Cocamidopropyl betaine was purchased from Shanghai division, Inc., of Yongchu degussa (China), and its mass concentration was 30%.

Polyquaternium-10 is available from the Dow chemical company.

PCA glyceryl oleate was purchased from IOI grease, Inc.

The two sections of deep sea mustard oil are purchased from the chemical industry of Craine, China Co.

Xylitol glucoside, anhydroxylitol and xylitol alcohols were purchased from the company Saibox, France.

Glycerol laurate is available from Bilithan (OLEON).

Cocamide methyl monoethanolamine is available from the corporation of queen flowers (china).

Chelating agent disodium EDTA was purchased from aksunobel chemicals (ningbo) ltd.

Fragrances were purchased from IFF International flavors and fragrances.

The preservative Microcare CM was purchased from Tour specialty Chemicals (Shanghai) Co., Ltd.

Citric acid was purchased from Weifang Yinxuan industry Co., Ltd.

Examples 1 to 3 and comparative examples 1 to 3

The silicone oil-free and sulfate-free shampoos of examples 1-3 were prepared as follows:

The formulation compositions of examples 1-3 and comparative examples 1-3 are shown in table 1.

TABLE 1 formulation compositions of examples 1-3 and comparative examples 1-3

Comparative examples 1 to 3

The shampoos of comparative examples 1-3 were prepared in the same manner as in example 2, but in different formulations, and accordingly no starting components were added to the formulation that were missing. Specifically, an alternative silicone oil composition to the formulation of example 2 without the addition of PCA glyceryl oleate and deep sea canola oil gave comparative example 1. The replacement silicone oil composition in the formulation of example 2 was replaced with PCA glyceryl oleate alone to give comparative example 2. The replacement silicone oil composition in the formulation of example 2 was replaced with the deep sea canola oil alone to give comparative example 3.

Example 4 hair combing performance test evaluation:

experimental equipment: INSTRON static carding machine

The test method comprises the following steps:

all natural untreated asian tresses to be tested were first cleaned to no foam using comparative example 1 and subjected to wet combing on an INSTRON static combing machine. Then, the wet combing test was performed after the shampoos of examples 1 to 3 and comparative examples 2 to 3 were used, respectively; after the tress had been naturally dried at 25 ℃ at a humidity of 60%, a dry combing test was carried out. And calculating the combing efficiency improvement rate of the dry hair and the wet hair according to the combing work of the dry hair and the wet hair twice before and after each hair bundle.

Table 2 shows the hair combing force test data for examples 1-3, comparative examples 1-3 and a commercial shampoo. The commercially available shampoo is a sea-fly anti-dandruff shampoo containing silicone oil.

TABLE 2 Hair combing example test data

The data show that examples 1-3 containing the silicone oil replacement composition have comparable wet combing performance to commercial silicone oil-containing shampoo, with a slightly higher improvement in dry combing performance than silicone oil-containing products. Compared with example 2 containing a silicone oil substitute composition, comparative example 2 containing single PCA glyceryl oleate and comparative example 3 containing single deepened sea mustard seed oil, the dry and wet combing property improvement rate of example 2 is higher than the sum of the improvement rates of comparative examples 2 and 3, and the synergistic effect of the PCA glyceryl oleate and the deepened sea mustard seed oil when the PCA glyceryl oleate and the deepened sea mustard seed oil are compounded enables a final product to have high conditioning performance.

Wet hair combing is improved because PCA glyceryl oleate restores the surface hydrophobicity of damaged hair strands, making the strands softer and smoother during the rubbing and rinsing stages. Dry combing is improved because PCA glyceryl oleate aids in spreading the vegetable oil deep sea canola oil on the hair. After the PCA glyceryl oleate improves the hydrophobicity of the hair, the hydrophobic hair surface is more favorable for spreading vegetable oil, and the vegetable oil with enough quantity is spread on the hair to bring the smooth and soft feeling of the dry hair. Therefore, the PCA glyceryl oleate and the deep sea two-section mustard oil are compounded, so that the requirements of repairing the surface hydrophobicity of the hair and spreading a lipid layer for smoothing hair scales on the surface of the hair can be met, the overall conditioning performance of the silicone-oil-free shampoo is improved, and the problem that the hair is dried and difficult to clean without the silicone-oil shampoo is solved.

Example 5 efficacy testing:

in order to further compare the using performance of the shampoo, 30 male and female volunteers with the ages of 22-50 years are selected for blind test. Each shampoo was washed with the shampoo of example 2 and the commercially available silicone oil fragrance 10 times in succession, every two days, and then a questionnaire was conducted, the results of which are shown in Table 3.

Table 3 shampoo comparative testing

The results show that example 2 is comparable to the commercially available silicon-containing shampoo in terms of foaming, wet combing, smoothness and softness, is slightly superior to the commercially available silicon-containing shampoo in terms of wet-rinsing hand feel, and is slightly superior to the commercially available silicon-containing shampoo in terms of dry combing and glossiness, which shows that the silicone-free and sulfate-free shampoo of the present invention has a conditioning performance comparable to that of the silicone-containing shampoo, and effectively solves the problem that the dry hair is difficult to treat after the silicone-free shampoo is used.

The embodiments described above are intended to facilitate the understanding and appreciation of the application by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present application is not limited to the embodiments herein, and those skilled in the art who have the benefit of this disclosure will appreciate that many modifications and variations are possible within the scope of the present application without departing from the scope and spirit of the present application.

Claims

1. The shampoo without the silicone oil and the sulfate with high conditioning performance is characterized by being prepared from the following raw materials in percentage by mass:

20-40% of anionic amino acid type surfactant;

10-30% of amphoteric surfactant;

0.2-0.5% of cationic conditioner;

0.7 to 1.5 percent of substituted silicone oil composition;

0.5 to 1 percent of humectant;

1.5 to 5 percent of thickening agent;

0.01-0.1% of chelating agent;

0.06-0.08% of preservative;

0.5-1% of essence;

0.1 to 0.5 percent of pH regulator; and

the balance of water, wherein the sum of the mass percentages of all the raw material components is 100%;

the substituted silicone oil composition comprises the following components in percentage by mass based on the total mass of all raw material components: 0.5-1% of PCA glyceryl oleate and 0.2-0.5% of vegetable oil, wherein the vegetable oil is deep sea two-section mustard seed oil.

2. The silicone-oil-free and sulfate-free shampoo of claim 1 wherein the anionic amino acid type surfactant comprises one or more of sodium lauroyl sarcosinate, sodium cocoyl methyl taurate, or sodium cocoyl glutamate;

the amphoteric surfactant comprises one or more of cocamidopropyl betaine, lauramidopropyl betaine, sodium cocoamphoacetate or sodium lauroamphoacetate;

the cationic conditioner comprises one or more of polyquaternium-7, polyquaternium-10, polyquaternium-52, guar gum hydroxypropyl trimethyl ammonium chloride or hydroxypropyl guar gum hydroxypropyl trimethyl ammonium chloride;

the pH regulator is citric acid.

3. The silicone-oil-free and sulfate-free shampoo of claim 1 or 2 wherein the humectant is a mixture of xylitol glucoside, anhydroxylitol and xylitol alcohol.

4. The silicone-oil-free and sulfate-free shampoo with high conditioning performance as claimed in claim 1 or 2, wherein the thickener comprises the following components in percentage by mass based on the total mass of all the raw material components: 0.5-2% of glyceryl laurate and 1-3% of cocamidomethyl monoethanolamine.

5. A method of preparing the silicone oil-free and sulfate salt-free shampoo of claim 1 having high conditioning performance, comprising the steps of:

(4) and cooling the third reaction mixture to below 45 ℃, and uniformly mixing the third reaction mixture, the preservative, the essence and the pH regulator to obtain the silicone oil-free and sulfate-free shampoo with high conditioning performance.

6. The method of claim 5, wherein in step (2), the temperature of the first reaction mixture is raised to 70 ℃;

in step (3), the second reaction mixture is cooled to 60 ℃.

7. The method of claim 5, wherein in step (1), the thickener is a mixture of glyceryl laurate and cocamidomethyl monoethanolamine;

8. The method of claim 5, wherein the method comprises the steps of:

(4) cooling to 45 ℃, adding the preservative, the essence and the citric acid, stirring uniformly, and stopping stirring to obtain the silicone oil-free and sulfate-free shampoo with high conditioning performance.