Facial cleanser containing camellia seed oil and method of making the same

Abstract

The application provides a facial cleanser containing camellia seed oil and a preparation method thereof, wherein the amount of camellia seed oil is 5%-10% of the total weight of the facial cleanser, the amount of shea butter is 1%-5% of the total weight of the facial cleanser, the amount of 18 / 16 mixed alcohol is 1%-10% of the total weight of the facial cleanser, the amount of a moisturizing agent is 5%-15% of the total weight of the facial cleanser, the amount of disodium EDTA is 0.01%-0.2% of the total weight of the facial cleanser, the amount of a surfactant is 5%-15% of the total weight of the facial cleanser, the surfactant is at least one selected from the group consisting of potassium cocoyl glycinate, sodium cocoyl glycinate, decyl glucoside, lauryl glucoside, octyl glucoside and cocamidopropyl betaine, the amount of an antioxidant is 0.01%-2.0% of the total weight of the facial cleanser, and the amount of an active substance is 0.01%-2.0% of the total weight of the facial cleanser. The facial cleanser has the advantages of moisturizing, bacteriostasis, good cleaning effect, mildness to the skin, antioxidant property and good stability, and the preparation method is simple.

Description

Technical Field

[0001] This invention relates to the technical field of facial cleansers, specifically to a facial cleanser containing camellia seed oil and its preparation method. Background Technology

[0002] Camellia seed oil and shea butter are commonly used as functional ingredients in makeup remover oils. In order to achieve better synergistic effects between the two and other ingredients, the amount of camellia seed oil usually needs to be adjusted to 4 times or more of shea butter, which causes the following problems: (1) poor product stability; (2) the homogeneous emulsification of product components can only be achieved by combining multiple mixing processes such as high-temperature and high-pressure stirring, ultrasound, vacuum defoaming, and microemulsification, which presents technical problems of cumbersome operation and high energy consumption. The shelf life of a single facial cleanser is usually about half a year, which is a relatively long time. Therefore, if its stability is poor, it is easy to cause the facial cleanser to fail, thereby affecting the product's performance.

[0003] Furthermore, when camellia seed oil is used as a makeup remover ingredient, it typically achieves its cleansing effect based on the "oil dissolves oil" mechanism. When the proportion of camellia seed oil is reduced, its cleansing effect diminishes. Shea butter, on the other hand, is usually used as a moisturizing and anti-inflammatory ingredient, and there are currently no reports of it synergistically improving cleansing power or stability.

[0004] Therefore, to realize the application of camellia seed oil in facial cleansers, it is necessary to solve the dilemma of not being able to achieve both stability and cleansing power in the existing formula due to the amount of camellia seed oil used. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a facial cleanser containing camellia seed oil. The facial cleanser has the advantages of moisturizing, antibacterial, good cleansing effect, gentle on the skin, antioxidant and good stability. Furthermore, through the overall combination of various components, the product components can be homogenized and emulsified under mild conditions to obtain the facial cleanser.

[0006] To solve the above problems, the technical solution adopted by the present invention is as follows: A facial cleanser containing camellia seed oil, wherein the facial cleanser comprises components A, B, and C. Component A consists of camellia seed oil, shea butter, 18 / 16 mixed alcohol, and an emulsifier. The amount of camellia seed oil used is 5%-10% of the total weight of the facial cleanser, the amount of shea butter used is 1%-5% of the total weight of the facial cleanser, and the amount of 18 / 16 mixed alcohol used is 1%-10% of the total weight of the facial cleanser. Component B comprises a humectant, water, disodium EDTA, a surfactant, and a thickener. The amount of the humectant is 5%-15% of the total weight of the facial cleanser, the amount of disodium EDTA is 0.01%-0.2% of the total weight of the facial cleanser, the amount of the surfactant is 5%-15% of the total weight of the facial cleanser, and the surfactant is selected from at least one of potassium cocoyl glycinate, sodium cocoyl glycinate, decyl glucoside, lauryl glucoside, octyl glucoside, and cocamidopropyl betaine. The amount of the thickener is 0.1%-1.0% of the total weight of the facial cleanser, and the remainder of the facial cleanser is water. The C component includes preservatives, antioxidants, and active ingredients. The amount of preservatives is 0.1%-1.0% of the total weight of the facial cleanser, the amount of antioxidants is 0.01%-2.0% of the total weight of the facial cleanser, and the amount of active ingredients is 0.01%-2.0% of the total weight of the facial cleanser.

[0007] In some possible embodiments, the active ingredient is selected from at least one of nicotinamide, panthenol, allantoin, Sphingomonas fermentation product extract, and Bifida ferment lysate.

[0008] In some possible embodiments, the emulsifier is selected from at least one of glyceryl stearate, PEG-100 stearate, Tween-80, and PEG-7 glyceryl cocoate, and the amount of the emulsifier is 1%-3.0% of the total weight of the facial cleanser.

[0009] In some possible implementations, the moisturizer is selected from at least one of glycerin, propylene glycol, butylene glycol, and sodium hyaluronate.

[0010] In some possible implementations, the antioxidant is selected from at least one of vitamin E, tocopheryl acetate, and ascorbyl palmitate.

[0011] In some possible implementations, the thickener is selected from at least one of carbomer, xanthan gum, and hydroxyethyl cellulose.

[0012] In some possible implementations, the preservative is selected from at least one of phenoxyethanol, sodium benzoate, and potassium sorbate.

[0013] In some possible implementations, the camellia seed oil is obtained by supercritical CO2 extraction of camellia seeds.

[0014] In some possible implementations, component C consists of fragrance, preservatives, antioxidants and active ingredients, wherein the amount of fragrance used is 0.1%-0.5% of the total weight of the facial cleanser.

[0015] This application also provides a method for preparing a facial cleanser, the method being used to prepare the facial cleanser containing camellia seed oil, the method comprising the following steps: Place all the materials of component A in an oil-soluble pot, heat to 75℃-85℃, and keep warm for 15min-25min. Place all the materials of component B in a water-soluble pot, heat to 75℃-85℃, and keep warm for 15min-25min. Add the heat-insulated component A to the heat-insulated component B, then homogenize and emulsify at 75°C for 3-10 minutes, with the stirring speed being 1800-2200 r / min. After homogenization and emulsification are completed, the speed and temperature are reduced, specifically, the speed is reduced to 12~18 r / min, and the temperature is reduced to below 50℃, then all the materials of component C are added; After adding component C, continue cooling to below 44°C and stop stirring.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: In this invention, the synergistic effect of camellia seed oil, shea butter, 18 / 16 mixed alcohol, and surfactants enables the facial cleanser to possess the advantages of moisturizing, antibacterial, and good cleansing effects, as well as being gentle on the skin, antioxidant, and stable. Furthermore, through the overall coordination of the various components, the product components can be homogenized and emulsified under mild conditions to obtain the facial cleanser, without the need for multiple methods such as high-temperature and high-pressure stirring, ultrasound, or vacuum defoaming to achieve homogenization and emulsification between components. Thus, the facial cleanser components provided by this invention also help to simplify the homogenization and emulsification process.

[0017] The present invention will be further described in detail below with reference to specific embodiments. Detailed Implementation

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0020] The following describes some embodiments of the present invention in detail. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0021] An embodiment of the present invention provides a facial cleanser containing camellia seed oil. The facial cleanser comprises components A, B, and C. Component A consists of camellia seed oil, shea butter, 18 / 16 mixed alcohol, and an emulsifier. The amount of camellia seed oil used is 5%-10% of the total weight of the facial cleanser, the amount of shea butter used is 1%-5% of the total weight of the facial cleanser, and the amount of 18 / 16 mixed alcohol used is 1%-10% of the total weight of the facial cleanser.

[0022] Component B comprises a humectant, water, disodium EDTA, a surfactant, and a thickener. The humectant is used at 5%-15% of the total weight of the facial cleanser, the disodium EDTA at 0.01%-0.2% of the total weight of the facial cleanser, and the surfactant at 5%-15% of the total weight of the facial cleanser. The surfactant is selected from at least one of potassium cocoyl glycinate, sodium cocoyl glycinate, decyl glucoside, lauryl glucoside, octyl glucoside, and cocamidopropyl betaine. The thickener is used at 0.1%-1.0% of the total weight of the facial cleanser, and the remainder of the facial cleanser is water.

[0023] Component C includes preservatives, antioxidants, and active ingredients. The amount of preservative is 0.1%-1.0% of the total weight of the facial cleanser, preferably 0.6%-1.0%. The amount of antioxidant is 0.01%-2.0% of the total weight of the facial cleanser, and the amount of active ingredients is 0.01%-2.0% of the total weight of the facial cleanser. Preferably, the amount of active ingredients is 0.2%-2.0% of the total weight of the facial cleanser.

[0024] In this invention, the synergistic effect of camellia seed oil, shea butter, 18 / 16 mixed alcohol, and surfactants enables the facial cleanser to possess the advantages of moisturizing, antibacterial, and good cleansing effects, as well as being gentle on the skin, antioxidant, and stable. Furthermore, through the overall coordination of the various components, the product components can be homogenized and emulsified under mild conditions to obtain the facial cleanser, without the need for multiple methods such as high-temperature and high-pressure stirring, ultrasound, or vacuum defoaming to achieve homogenization and emulsification between components. Thus, the facial cleanser components provided by this invention also help to simplify the homogenization and emulsification process.

[0025] In some embodiments, the active ingredient is selected from at least one of niacinamide, panthenol, allantoin, *Sphingomyelinum* fermentation product extract, and *Bifida Ferment Lysate* fermentation product lysate. The active ingredient provides additional skincare benefits. Specifically, niacinamide is added to utilize its whitening, brightening, oil-controlling, and skin barrier-repairing effects; panthenol is added to utilize its soothing, anti-inflammatory, and moisturizing effects; allantoin is added to utilize its moisturizing and repairing effects; *Sphingomyelinum* fermentation product extract has skin-conditioning effects; and *Bifida Ferment Lysate* fermentation product lysate has barrier-repairing, anti-photoaging, and soothing effects.

[0026] In some embodiments, the emulsifier is selected from at least one of glyceryl stearate, PEG-100 stearate, Tween-80, and PEG-7 glyceryl cocoate, and the amount of the emulsifier is 1%-3.0% of the total weight of the facial cleanser.

[0027] In some embodiments, the moisturizer is selected from at least one of glycerin, propylene glycol, butylene glycol, and sodium hyaluronate.

[0028] In some embodiments, the antioxidant is selected from at least one of vitamin E, tocopheryl acetate, and ascorbyl palmitate.

[0029] In some embodiments, the thickener is selected from at least one of carbomer, xanthan gum, and hydroxyethyl cellulose.

[0030] In some embodiments, the preservative is selected from at least one of phenoxyethanol, sodium benzoate, and potassium sorbate.

[0031] In some embodiments, the camellia seed oil is obtained by supercritical CO2 extraction of camellia seeds. For example, the extraction parameters for camellia seed oil are: extraction pressure 28 MPa, temperature 42°C, and extraction time 3 min. The camellia seed oil in the specific embodiment is extracted using these parameters, and therefore will not be described further.

[0032] In some embodiments, component C consists of fragrance, preservative, antioxidant and active ingredient, and the amount of fragrance used is 0.1%-0.5% of the total weight of the facial cleanser.

[0033] The present invention also provides a method for preparing a facial cleanser, the method being used to prepare the facial cleanser containing camellia seed oil, and therefore, the method includes the following steps.

[0034] Place all the materials of component A in an oil-soluble pot, heat to 75℃-85℃, and keep warm for 15min-25min. Place all the materials of component B in a water-soluble pot, heat to 75℃-85℃, and keep warm for 15min-25min.

[0035] Add the heat-insulated component A to the heat-insulated component B, and then homogenize and emulsify at 75°C for 3-10 minutes. The stirring speed for homogenization and emulsification is 1800-2200 r / min.

[0036] After homogenization and emulsification are completed, the speed and temperature are reduced, specifically to 12-18 r / min, and all the materials of component C are added when the temperature drops below 50°C.

[0037] After adding component C, continue cooling to below 44°C and stop stirring.

[0038] The preparation method provided by this invention only requires simple temperature control and homogenization emulsification to achieve the mixing and emulsification of facial cleanser components. Furthermore, the temperature of the preparation method is controlled below 100°C, resulting in relatively low energy consumption. Therefore, the preparation method of this invention has the advantages of being easy to operate and energy-saving.

[0039] The following detailed description is provided through specific embodiments. Example 1

[0040] The facial cleanser contains the following components, the total weight percentage of each component is 100%. The percentages described below represent the amount of each component used relative to the total weight of the facial cleanser. The same applies to subsequent examples and comparative examples, so they will not be repeated here. In the table, the detailed component percentages listed in the name column represent the total percentage of that component in the facial cleanser. Specifically, the emulsifier accounts for 2.1% of the facial cleanser's weight, glyceryl stearate accounts for 0.6%, PEG-100 stearate accounts for 1.4%, and PEG-7 glyceryl cocoate accounts for 0.1%. The total amount of these three components is 2.1% of the emulsifier's weight.

[0041]

[0042] The active ingredients are nicotinamide (0.5%), panthenol (0.4%), allantoin (0.3%), *Sphingomonas* fermentation product extract (0.3%), and *Bifida Ferment Lysate* fermentation product lysate (0.5%). Among these, the *Sphingomonas* fermentation product extract (Lubrizol) and the *Bifida Ferment Lysate* fermentation product lysate (Guangzhou Meiyi Biotechnology Co., Ltd.) are all commercially available reagents whose sources are not listed, and their impact on performance is minimal; therefore, they will not be described further. The product information for the extracts, lysates, and mixed alcohols used in subsequent examples is the same, and therefore will not be repeated.

[0043] The preparation method comprises the following steps: placing all the materials of component A in an oil-soluble pot, heating to 75°C, and holding at that temperature for 25 minutes; placing all the materials of component B in a water-soluble pot, heating to 75°C, and holding at that temperature for 25 minutes; adding the heated component A to the heated component B, and then homogenizing and emulsifying at 75°C for 5 minutes at a stirring speed of 2000 r / min; After homogenization and emulsification are completed, the speed and temperature are reduced. Specifically, the speed is reduced to 12 r / min and the temperature is reduced to below 50°C, and all the materials of component C are added. After adding component C, continue cooling to below 44°C and stop stirring. Example 2

[0044] The ingredients of the facial cleanser are as follows, and the total weight percentage of the following ingredients is 100%.

[0045]

[0046] The preparation method differs from Example 1 in that the processing parameters for component A are: heating temperature of 85°C and holding time of 15 min. The processing parameters for component B are: heating temperature of 80°C and holding time of 18 min. Emulsification is then carried out for 3 min. The heated component A is added to the heated component B, and then homogenized and emulsified at 75°C for 3 min at a stirring speed of 2200 r / min. After homogenization and emulsification, the stirring speed is reduced to 18 r / min. Example 3

[0047] The ingredients of the facial cleanser are as follows, and the total weight percentage of the following ingredients is 100%.

[0048]

[0049] The preparation method differs from Example 1 in that the processing parameters for component A are: heating temperature of 80℃ and holding time of 20 min; and the processing parameters for component B are: heating temperature of 85℃ and holding time of 15 min. Emulsification is then carried out for 10 min. The heated component A is added to the heated component B, and then homogenized and emulsified at 75℃ for 10 min at a stirring speed of 1800 r / min. After homogenization and emulsification, the stirring speed is reduced to 16 r / min.

[0050] Comparative Example 1 The difference from Example 1 is that it does not contain 18 / 16 mixed alcohols, and the water content is 62.3% by weight. The difference in the preparation method compared to Example 1 is that the processing parameters for component A are: heating to 85°C and holding at that temperature for 25 minutes.

[0051] Comparative Example 2 The difference from Example 1 is that the weight percentage of camellia seed oil is 12% and the weight percentage of water is 53.3%. The processing parameters for component A are: heating temperature of 82°C and holding time of 20 minutes.

[0052] Comparative Example 3 The difference from Example 1 is that the weight percentage of camellia seed oil is 4%, and the weight percentage of water is 61.3%. The difference from Example 1 is that the processing parameters for component A are: heating to 80°C and holding for 25 minutes.

[0053] Comparative Example 4 The difference from Example 1 is that the weight percentage of shea butter is 6% and the weight percentage of water is 54.3%.

[0054] The performance of facial cleansers is tested using the following methods or standards.

[0055] Stability test: Placed at 45℃ for 1 day, 7 days, 45 days, 90 days, and 180 days.

[0056] Antioxidant test: The test sample was diluted with water to a concentration of 0.2%, and sample solutions were prepared separately using PBS buffer as a solvent for testing.

[0057] Set up sample tubes (Aa), background sample tubes (Ab), and blank sample tubes (A0). For each sample and each tested concentration, three parallel sample tubes (Aa) and three parallel blank sample tubes (A0) are required. Add 0.2 mL of the same concentration of sample solution to each sample tube (Aa) and background sample tube (Ab), and add 0.2 mL of PBS buffer to each blank sample tube (A0). Add 0.8 mL of ABTS to each of Aa and A0. + For the working solution, add 0.8 mL of PBS buffer and react in the dark for 6 min. Transfer the solutions from each reaction tube to a 1 cm cuvette and measure the absorbance at 734 nm. Calculate the half-maximal clearance (IC50) concentration. 50 The calculation formula is as follows: , where X represents the free radical scavenging rate.

[0058] Cleaning effectiveness test: Prepare standard grease-stained cloths (5cm*5cm) and test their initial whiteness value F0 using a whiteness meter. Place three cloths in 1 liter of tap water, add 20g of facial cleanser, stir for 20 minutes, remove and air dry, then test the whiteness value F1 again. The rate of change in whiteness value for each cloth is (F1-F0) / F0*100%. Take the average of the whiteness value change rates before and after washing for the three grease-stained cloths as statistical data. A higher whiteness value indicates a lower grease content in the cloth, meaning better cleaning ability. Correspondingly, a higher rate of change indicates a better cleaning effect.

[0059] Skin gentleness and moisturizing test: 140 volunteers (half male and half female) were recruited for a 4-week observation period. No products were used on the test areas for the first 15 days. The 140 volunteers were divided into 7 groups of 20 each, following the above-described embodiments and comparative proportions. After rinsing their faces with water, the participants used a suitable facial cleanser for deep cleansing. The amount of cleanser used was about the size of a peanut, and the massage time was 30 seconds. A skin moisture meter was used to measure the rate of change in facial skin moisture before and after using the cleanser. The rate of change in moisture was calculated as (test value - initial value) / initial value * 100%. The average rate of change in moisture was calculated for each group (sum of the rates of change for all 20 participants / 20). A skin pH meter was used to record the pH value after using the cleanser, and the average pH value for each group was calculated (sum of the pH values ​​for all 20 participants / 20). The participants were also notified of any stinging sensations during use and any significant redness, swelling, or itching after use.

[0060] Antibacterial test: Under aseptic conditions, standard strains of Staphylococcus aureus and Escherichia coli stored in glycerol were inoculated into MHB medium and cultured at 37°C for 12 hours. After streaking the plates into MHA medium to form single colonies, the plates were incubated at 37°C for 24 hours. Typical single colonies were then picked and inoculated into MHB medium. After incubation at 37°C for 18–24 hours, the purity was tested using a hemocytometer, and each bacterial culture was diluted to 1×10⁻⁶ with MHB medium. 7 CFU / mL bacterial suspension.

[0061] Under aseptic conditions, the standard strain of Candida albicans, stored in glycerol, was inoculated into YMB medium and incubated at 28°C for 24 hours. Then, it was streaked onto YMA medium to form single colonies. After incubating the inoculated plates at 28°C for 24 hours, typical single colonies were picked and inoculated into YMB medium. After incubation at 37°C for 18–24 hours, the purity was tested using a hemostatin, and each bacterial suspension was diluted to 1×10⁻⁶ with YMB medium. 7 CFU / mL bacterial suspension.

[0062] The filter paper disc agar diffusion method was used. Under aseptic conditions, sterilized MHA medium cooled to approximately 50°C was poured into sterile petri dishes. After solidification, 200 μL of each bacterial suspension was pipetted onto the culture medium plates and evenly spread for later use. 20 μL of the emulsion form of facial cleanser (prepared as a 0.05% water emulsion) from the above examples and comparative examples was pipetted onto sterile filter paper discs (d = 6 mm). After full absorption, the discs were affixed to the pre-spread bacterial culture medium plates. Each bacterial culture was repeated three times. Levofloxacin was used as a positive control for bacteria, and amphotericin B was used as a positive control for fungi. Bacterial culture conditions were 37°C for 24 hours, and fungal culture conditions were 28°C for 48 hours. After incubation, the inhibition zone was recorded. The diameter of the inhibition zone was measured using the cross-sectional method, and the average value was taken as the measurement result.

[0063] The test results are shown in the table below.

[0064] The stability test results are shown in the table below.

[0065]

[0066] As can be seen from the above, the present invention provides a product with good stability when added to facial cleanser.

[0067] The antioxidant test data are shown in the table below.

[0068]

[0069] The lower the value, the better the antioxidant effect. Therefore, it can be seen that the facial cleanser provided by the present invention has good antioxidant properties.

[0070] The antibacterial test data are shown in the table below. The table shows the average diameter of the inhibition zone (in mm).

[0071]

[0072] The larger the antibacterial zone value, the better the antibacterial effect. Therefore, the facial cleanser provided by this invention has a good antibacterial effect.

[0073] The results of tests on skin gentleness, moisturizing properties, and cleansing effectiveness are as follows.

[0074]

[0075] As can be seen from the above, the facial cleanser provided by the present invention has good moisturizing effect, good gentleness, and also helps to maintain the skin in a slightly acidic state, and has a good cleansing effect.

[0076] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A facial cleanser containing camellia seed oil, characterized in that, The facial cleanser comprises components A, B, and C. Component A consists of camellia seed oil, shea butter, 18 / 16 mixed alcohol, and an emulsifier. The amount of camellia seed oil used is 5%-10% of the total weight of the facial cleanser, the amount of shea butter used is 1%-5% of the total weight of the facial cleanser, and the amount of 18 / 16 mixed alcohol used is 1%-10% of the total weight of the facial cleanser. Component B comprises a humectant, water, disodium EDTA, a surfactant, and a thickener. The amount of the humectant is 5%-15% of the total weight of the facial cleanser, the amount of disodium EDTA is 0.01%-0.2% of the total weight of the facial cleanser, the amount of the surfactant is 5%-15% of the total weight of the facial cleanser, and the surfactant is selected from at least one of potassium cocoyl glycinate, sodium cocoyl glycinate, decyl glucoside, lauryl glucoside, octyl glucoside, and cocamidopropyl betaine. The amount of the thickener is 0.1%-1.0% of the total weight of the facial cleanser, and the remainder of the facial cleanser is water. The C component includes preservatives, antioxidants, and active ingredients. The amount of preservatives is 0.1%-1.0% of the total weight of the facial cleanser, the amount of antioxidants is 0.01%-2.0% of the total weight of the facial cleanser, and the amount of active ingredients is 0.01%-2.0% of the total weight of the facial cleanser.

2. The facial cleanser as described in claim 1, characterized in that, The active ingredient is selected from at least one of nicotinamide, panthenol, allantoin, Sphingomonas fermentation product extract, and Bifida ferment lysate.

3. The facial cleanser as described in claim 2, characterized in that, The emulsifier is selected from at least one of glyceryl stearate, PEG-100 stearate, Tween-80, and PEG-7 glyceryl cocoate, and the amount of the emulsifier is 1%-3.0% of the total weight of the facial cleanser.

4. The facial cleanser as described in claim 3, characterized in that, The moisturizer is selected from at least one of glycerin, propylene glycol, butylene glycol, and sodium hyaluronate.

5. The facial cleanser as described in claim 4, characterized in that, The antioxidant is selected from at least one of vitamin E, tocopheryl acetate, and ascorbyl palmitate.

6. The facial cleanser as described in claim 5, characterized in that, The thickener is selected from at least one of carbomer, xanthan gum, and hydroxyethyl cellulose.

7. The facial cleanser as described in claim 1, characterized in that, The preservative is selected from at least one of phenoxyethanol, sodium benzoate, and potassium sorbate.

8. The facial cleanser as described in claim 1, characterized in that, The camellia seed oil is obtained by supercritical CO2 extraction of camellia seeds.

9. The facial cleanser as described in claim 1, characterized in that, Component C consists of fragrance, preservatives, antioxidants and active ingredients, and the amount of fragrance used is 0.1%-0.5% of the total weight of the facial cleanser.

10. A method for preparing a facial cleanser, characterized in that, The preparation method is used to prepare a facial cleanser containing camellia seed oil as described in any one of claims 1 to 9, and the preparation method includes the following steps: Place all the materials of component A in an oil-soluble pot, heat to 75℃-85℃, and keep warm for 15min-25min. Place all the materials of component B in a water-soluble pot, heat to 75℃-85℃, and keep warm for 15min-25min. Add the heat-insulated component A to the heat-insulated component B, and then homogenize and emulsify at 75°C for 3-10 minutes. The stirring speed during emulsification is 1800-2200 r / min. After homogenization and emulsification are completed, the speed and temperature are reduced, specifically, the speed is reduced to 12~18 r / min, and the temperature is reduced to below 50℃, then all the materials of component C are added; After adding component C, continue cooling to below 44°C and stop stirring.

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