Oil-in-water waterproof sunscreen product with high sunscreen value and preparation method thereof

Abstract

The invention relates to an oil-in-water waterproof high-sunscreen-value sunscreen product and a preparation method thereof, and the oil-in-water waterproof high-sunscreen-value sunscreen product comprises the following components in percentage by mass: 60%-80% of a water phase, 10%-30% of a sunscreen agent phase, 1%-8% of an emulsifier phase and 5%-15% of dispersible grease, the sun-screening agent comprises an organic sun-screening agent and an inorganic sun-screening agent; the emulsifier phase comprises one or more of polyglycerol fatty acid ester, polyethylene glycol fatty acid ester and alkanol modified acrylate. The oil-in-water waterproof sunscreen product with the high sunscreen value has an excellent sunscreen effect (SPF50 + PA + + +), achieves the effects of good adhesion, falling and sliding resistance, water resistance, sweat resistance and the like, and meanwhile has a fresh, moist and non-sticky skin feeling.

Description

Technical Field

[0001] The present invention relates to the technical field of sunscreen compositions, and more specifically to an oil-in-water waterproof sunscreen product with a high sunscreen value and a preparation method thereof. Background Art

[0002] With the recommendations of bloggers and influencers, consumers are paying more and more attention to sunscreen products, and are more concerned about ingredients and skin feel. As the market demand for sunscreen products gradually increases, major manufacturers are also gradually paying more attention to the development of sunscreen products.

[0003] For emulsified sunscreen products, they can be roughly divided into two types of emulsion systems: water-in-oil type and oil-in-water type. At present, whether it is sunscreen lotion, sunscreen cream or sunscreen spray, most sunscreen cosmetics belong to oil-in-water type sunscreen products. Oil-in-water sunscreen products usually have a heavy and sticky skin feel due to the high content of oil in the external phase and the main emulsifier with a large molecular weight, which will cause consumers to have a bad experience when used in summer. Water-in-oil emulsions have a great advantage in summer because they can get a moist feeling. However, compared with oil-in-water emulsion products, most water-in-oil emulsion cosmetics have poor water resistance. Especially in summer, people are prone to sweating or often soak in water to swim, and sunscreen products have more opportunities to be exposed to water. Due to poor water resistance, water-in-oil cosmetics are more likely to cause the loss of ultraviolet protection agents, thereby reducing the ultraviolet protection function of sunscreen products. In the research and development of water-in-oil emulsion cosmetics, most of them focus on improving water resistance, and there are few studies on improving water resistance and sun protection index at the same time.

[0004] Existing patent CN117860617A discloses an oil-in-water sunscreen lotion and a preparation method thereof. The formula may contain no or very little emulsifier. After being applied to the skin, it immediately has a water-melting feeling, can reduce the burden on the skin, and is skin-friendly and gentle, but its sunscreen performance remains to be discussed.

[0005] Therefore, it is very important to develop an oil-in-water waterproof sunscreen product with high sun protection value. Summary of the invention

[0006] In order to solve the problems in the prior art, the first aspect of the present invention provides an oil-in-water, waterproof, high sun protection value sunscreen product, an oil-in-water, waterproof, high sun protection value sunscreen product, comprising the following components by mass percentage: 60%-80% aqueous phase, 10%-30% sunscreen agent phase, 1%-8% emulsifier phase, 5%-15% dispersible oil; the sunscreen agent comprises an organic sunscreen agent and an inorganic sunscreen agent; the emulsifier phase comprises one or more of polyglycerol fatty acid esters, polyethylene glycol fatty acid esters, and alkanol-modified acrylates.

[0007] As a preferred technical solution, the aqueous phase includes, by mass percentage, 50% to 70% water, 0.5% to 2% glycerol, 2% to 4% dipropylene glycol, 0.2% to 0.4% tromethamine, 0.5% to 2% 1,2-hexanediol, 0.05% to 0.2% allantoin, and 0.1% to 0.3% thickener.

[0008] As a preferred technical solution, the thickener includes a combination of one or more of ammonium acryloyldimethyltaurate / VP copolymer, polyacrylate cross-linked polymer-6, acrylic acid (ester) / C10-30 alkyl acrylate cross-linked polymer, carbomer, and xanthan gum.

[0009] As a preferred technical solution, the thickener includes ammonium acryloyldimethyltaurate / VP copolymer, polyacrylate cross-linked polymer-6, and acrylic acid (ester) / C10-30 alkyl acrylate cross-linked polymer.

[0010] As a preferred technical solution, the organic sunscreen includes, by mass percentage, 5%-8% homosalate, 3.5%-5% ethylhexyl salicylate, 2.5%-4% phenylbenzimidazole sulfonic acid, 1.5%-3% bis-ethylhexyloxyphenol methoxyphenyl triazine, 4%-5% butyl methoxydibenzoylmethane, and 1%-3% methylene bis-benzotriazolyl tetramethylbutylphenol.

[0011] As a preferred technical solution, the inorganic sunscreen includes one or more of 0.1% to 1.5% titanium dioxide, 0.1% to 1.5% zinc oxide, 0.1% to 1.5% aluminum hydroxide, and 0.1% to 1.5% cerium oxide, by mass percentage.

[0012] As a preferred technical solution, the inorganic sunscreen agent includes titanium dioxide.

[0013] The present invention adopts a compound of organic sunscreen agents homosalate, ethylhexyl salicylate, phenylbenzimidazole sulfonic acid, and bis-ethylhexyloxyphenol methoxyphenyl triazine as high-polarity oils and fats, and a compound of polyglycerol-6 stearate and PEG-100 stearate to achieve the emulsification effect of water-in-oil waterproof high-sunscreen value sunscreen products. In the poly C10-30 alkyl acrylate film-forming agent addition system, good water-in-oil film-forming performance is obtained, and the water resistance of the water-in-oil system is significantly improved, achieving good adhesion, resistance to shedding and sliding, persistent film-forming, waterproof and sweat-proof effects, and having a refreshing, moist and non-sticky skin feel.

[0014] In the present invention, the organic sunscreen agent homosalate, ethylhexyl salicylate, phenylbenzimidazole sulfonic acid, bis-ethylhexyloxyphenol methoxyphenyl triazine and inorganic sunscreen agent including titanium dioxide are compounded, especially the mass ratio of organic sunscreen agent to inorganic sunscreen agent is (200-250):(1-15), the sunscreen performance of the sunscreen lotion is significantly improved, and the sunscreen effect is further improved under the action of compound ingredients containing polyglycerol-6 stearate, PEG-100 stearate and film-forming agent poly C10-30 alkyl acrylate, and the sunscreen efficacy reaches SPF50+, PA++++, that is, it has excellent water and sweat resistance, improves the sunscreen effect, and achieves a balance of refreshing, moist and non-greasy skin feel.

[0015] As a preferred technical solution, the emulsifier phase includes one or more of 1.5% to 2.5% polyglycerol fatty acid ester, 1.5% to 2.5% polyethylene glycol fatty acid ester, and 1.5% to 2.5% alkanol-modified acrylate, by mass percentage.

[0016] As a preferred technical solution, the polyglycerol fatty acid ester includes one or more of polyglycerol-6 stearate, polyglycerol-2 oleate, polyglycerol-6 dioleate, polyglycerol-10 oleate, polyglycerol-10 stearate, and diisostearyl polyglycerol-3 polylinoleate, by mass percentage.

[0017] As a preferred technical solution, the polyglycerol fatty acid ester includes polyglycerol-6 stearate.

[0018] As a preferred technical solution, the polyethylene glycol fatty acid ester includes one or more of PEG-100 stearate, PEG-30-dipolyhydroxystearate, PEG-20 stearate, PEG-8 stearate, PEG-8 laurate, and propylene glycol laurate.

[0019] As a preferred technical solution, the polyethylene glycol fatty acid ester includes PEG-100 stearate.

[0020] As a preferred technical solution, the alkanol-modified acrylate includes poly C10-30 alkanol acrylate.

[0021] As a preferred technical solution, the mass ratio of the polyglyceryl-6 stearate, PEG-100 stearate and poly C10-30 alkyl acrylate is (1.5-2.5): (1.5-2.5): (1.5-2.5).

[0022] In the present invention, polyglycerol-6 stearate, PEG-100 stearate and poly C10-30 alkyl acrylate are compounded in a mass ratio of (1.5-2.5):(1.5-2.5):(1.5-2.5) and are used together as one of the emulsifier phase components of the water-in-oil system to form an emulsified structure at the water-oil interface, so that the film-forming property of the emulsion on the skin surface is stronger and the interface structure strength is high, the anti-migration property of the water-in-oil system is improved, the sunscreen in the emulsion particles is stably wrapped, and direct contact between the organic sunscreen and the skin is avoided during the use of the product, thereby reducing the greasy feeling and stickiness of the sunscreen product, improving the skin feel of the user, and achieving refreshing, moist and easy application.

[0023] As a preferred technical solution, the dispersible oil includes a combination of one or more of polydimethylsiloxane, diisopropyl sebacate, and octyl polymethylsiloxane.

[0024] The second aspect of the present invention provides a method for preparing the above-mentioned oil-in-water waterproof high sun protection value sunscreen product, comprising the following steps:

[0025] S1: Stir the aqueous phase components thoroughly for 3 to 10 minutes until they are evenly dispersed and set aside;

[0026] S2: Mix the sunscreen phase components and the emulsifier phase, stir evenly, and set aside;

[0027] S3: slowly add the material prepared in step S1 to the material in step S2 under homogenizing conditions, and stir homogenously for 5 to 10 minutes to prepare a mixture 1.

[0028] S4: slowly adding the dispersed oil into the mixed material 1 obtained in step S3, with a homogenization speed of 10-100 rpm and homogenization for 3-15 minutes to obtain an oil-in-water waterproof sunscreen product with a high sun protection value.

[0029] Beneficial Effects

[0030] 1. The water-in-oil waterproof high sun protection value sunscreen product of the present invention is compounded by adding polyglycerol-6 stearate, PEG-100 stearate and film-forming agent poly C10-30 alkyl acrylate, so that the film-forming property of the emulsion on the skin surface is stronger, the interface structure strength is high, the anti-migration property of the water-in-oil system is improved, the sunscreen agent in the emulsion particles is stably wrapped, and its release from the water-in-oil system is reduced, and direct contact between the organic sunscreen agent and the skin is avoided during the use of the product, thereby reducing the greasy feeling and stickiness of the sunscreen product, improving the skin feel of the user, and achieving refreshing, moisturizing and easy application.

[0031] 2. The complex of the organic sunscreen agent homosalate, ethylhexyl salicylate, phenylbenzimidazole sulfonic acid, and bis-ethylhexyloxyphenol methoxyphenyl triazine of the present invention is used as a high-polarity oil, and the complex compounded with polyglycerol-6 stearate and PEG-100 stearate significantly improves the water resistance and friction resistance of the water-in-oil system, achieves good adhesion, resistance to shedding and sliding, persistent film-forming, waterproof and sweat-proof effects, and at the same time has a refreshing, moist and non-sticky skin feel.

[0032] 3. In the present invention, the sunscreen performance of the sunscreen lotion is significantly improved by compounding organic sunscreen agents homosalate, ethylhexyl salicylate, phenylbenzimidazole sulfonic acid, bis-ethylhexyloxyphenol methoxyphenyl triazine and inorganic sunscreen agents including titanium dioxide. The sunscreen effect is further improved under the action of compound ingredients containing polyglyceryl-6 stearate, PEG-100 stearate and film-forming agent poly C10-30 alkyl acrylate. The sunscreen efficacy reaches SPF50+, PA++++, that is, it has excellent water and sweat resistance, improves the sunscreen effect, and achieves a balance of refreshing, moist and non-greasy skin feel. DETAILED DESCRIPTION

[0033] The experimental methods in the following examples of the present invention, where no specific conditions are specified, are usually carried out under conventional conditions or under conditions recommended by the manufacturers. The various commonly used chemical reagents used in the examples are all commercially available products.

[0034] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example

[0036] The first aspect of embodiments 1 to 4 of the present invention provides an oil-in-water waterproof sunscreen product with a high sun protection value, the formula of which is shown in Table 1:

[0037]

[0038]

[0039] The second aspect of embodiments 1 to 4 of the present invention provides a method for preparing an oil-in-water waterproof sunscreen product with a high sun protection value, characterized in that it comprises the following steps:

[0040] S1: Stir the aqueous phase components thoroughly for 5 minutes until they are evenly dispersed and set aside;

[0041] S2: Mix the sunscreen phase components and the emulsifier phase, stir evenly, and set aside;

[0042] S3: slowly add the material prepared in step S1 to the material in step S2 under homogenizing conditions, and stir homogenously for 8 minutes to prepare a mixture 1.

[0043] S4: slowly add the dispersed oil into the mixture 1 obtained in step S3, at a homogenization speed of 25 rpm, and homogenize for 6 minutes to obtain an oil-in-water waterproof sunscreen product with a high sun protection value.

[0044] The glycerol is provided by PTMUSIM MAS;

[0045] The dipropylene glycol is provided by SK PICGLOBAL;

[0046] The tromethamine was provided by Ximei (Shanghai) Chemical Technology Co., Ltd.

[0047] The 1,2-hexanediol is provided by SYMRISE;

[0048] The ammonium acryloyldimethyltaurate / VP copolymer is provided by CLARIANT;

[0049] Polyacrylate crosspolymer-6 is SEPPIC.SA;

[0050] The acrylic acid (ester) / C10-30 alkyl acrylate cross-linked polymer is provided by Ximei (Shanghai) Chemical Technology Co., Ltd.

[0051] The allantoin is provided by CLARIANT;

[0052] The homosalate is provided by Ximei (Shanghai) Chemical Technology Co., Ltd.

[0053] The ethylhexyl salicylate is provided by Ximei (Shanghai) Chemical Technology Co., Ltd.

[0054] The phenylbenzimidazole sulfonic acid is provided by Ximei (Shanghai) Chemical Technology Co., Ltd.

[0055] The bis-ethylhexyloxyphenol methoxyphenyl triazine is provided by Ximei (Shanghai) Chemical Technology Co., Ltd.

[0056] The titanium dioxide (CI 77891) was provided by Ximei (Shanghai) Chemical Technology Co., Ltd.

[0057] The polyglyceryl-6 stearate is provided by EVONIK;

[0058] The PEG-100 stearate is provided by SHANDONG NEW FUTURE CO., LTD.;

[0059] The poly C10-30 alkyl alcohol acrylate is provided by EVONIK;

[0060] The polydimethylsiloxane is provided by Ximei (Shanghai) Chemical Technology Co., Ltd.

[0061] The diisopropyl sebacate is provided by SHANGHAI YOOBO INDUSTRIAL CO., LTD.;

[0062] The octyl polymethylsiloxane is provided by Ximei (Shanghai) Chemical Technology Co., Ltd.

[0063] Performance Testing

[0064] 1. Skin sensory evaluation

[0065] Test method: A trained professional sensory panel was selected to participate in the skin feel test of the product. The test subjects were asked to use the sunscreen products of Examples 1 to 4 respectively. After application, the volunteers' evaluation was counted and the average score of each item was calculated. 1. The spreadability of the product when it was just pushed open was scored from 1 to 15 points. The higher the score, the easier it was to spread. 2. The stickiness and moistness of the product during use were scored from 1 to 15 points. The higher the score, the smoother and moister it was. 3. The softness, stickiness and greasiness of the product after use were scored from 1 to 15 points. The higher the score, the softer and drier it was. 4. The final overall preference was divided into five levels according to the intensity: very like, generally like, neither like nor dislike, generally dislike, and very dislike. The results are shown in Table 2.

[0066] Table 2

[0067]

[0068] 2. Stability test method

[0069] The material was divided into eight equal parts, placed in an 80G wide-mouth bottle, and placed under the following temperature conditions: 50℃, 45℃, 37℃, 25℃, 4℃, -7℃, -18℃, C cycle; observed for three months, taken out every week, restored to room temperature and observed the appearance of the material, and observed under a microscope to see if there was precipitation of sunscreen agent and aggregation of powder. The results are shown in Table 3.

[0070] Table 3

[0071]

[0072]

[0073] 3. Sunscreen and waterproof test

[0074] The sunscreen product prepared in Example 1 was selected to test the in vitro SPF value, the SPF value after human bathing, and the ultraviolet protection index PFA value.

[0075] (1) SPF value test method

[0076] Test article: Sunscreen products

[0077] Reference substance: SPF value 16.1±2.4, prepared according to the standard formula of medium-high SPF standard product (P2) in the "Technical Specification for Safety of Cosmetics" (2015 edition).

[0078] Subjects: Healthy volunteers aged 18 to 60 years old, both male and female, who meet the volunteer inclusion criteria.

[0079] Light source: Daylight simulator xenon arc lamp, all performance items meet the measurement specification requirements.

[0080] Test method:

[0081] The test was conducted with reference to the specific requirements of the "Technical Specifications for Safety of Cosmetics" (2015 edition). The subjects were placed in a prone position and their backs were exposed to the radiation. The minimum erythema dose (MED value) of the subjects' skin to ultraviolet radiation was predicted 24 hours before the test, and the ultraviolet radiation dose was adjusted according to the predicted results for the test samples. On the day of the test, a spot no less than 30 cm was selected on the back of the subject. 2 Normal skin area, (2.00±0.05)mg / cm 2 Apply the sample or standard reference substance evenly on the above area, wait for 15 minutes or follow the instructions on the label. Then select an appropriate ultraviolet irradiation dose and irradiate in three situations: ① No sample is applied to the subject's skin; ② Apply a standard reference sample; ③ Apply the sample to be tested (the sunscreen product prepared in Examples 1 to 4, the same below). Observe the experimental results after 24 hours and record the MED values ​​in the three situations respectively.

[0082] SPF value calculation method: The SPF value of a sample or standard product protecting a single subject is expressed as follows:

[0083]

[0084] Calculate the arithmetic mean of the SPF values ​​of all subjects protected by the sample, and take the integer part as the SPF value of the measured sample.

[0085] (2) Testing method for SPF value of human body after bathing

[0086] Test article: Sunscreen products

[0087] Reference substance: SPF value 16.1±2.4, prepared according to the standard formula of medium-high SPF standard product (P2) in the "Technical Specification for Safety of Cosmetics" (2015 edition).

[0088] Subjects: Healthy volunteers aged 18 to 60 years old, both male and female, who meet the volunteer inclusion criteria.

[0089] Light source: Daylight simulator xenon arc lamp, all performance items meet the measurement specification requirements.

[0090] Test method:

[0091] The test was conducted with reference to the specific requirements of the "Technical Specifications for Safety of Cosmetics" (2015 edition). The subjects were placed in a prone position and their backs were exposed to the radiation. The minimum erythema dose (MED value) of the subjects' skin to ultraviolet radiation was predicted 24 hours before the test, and the ultraviolet radiation dose was adjusted according to the predicted results for the test samples. On the day of the test, a spot no less than 30 cm was selected on the back of the subject. 2 Normal skin area, (2.00±0.05)mg / cm 2 The sample dosage is applied evenly to the above-mentioned area with the sample to be tested or the standard reference substance, and the subject is allowed to wait for 15-30 minutes. The subject rotates in the water flow at a moderate degree for 20 minutes, rests for 20 minutes after exiting the water, and moves in the water for an equal amount of 20 minutes. The water activities are terminated, and the skin is dried after approval. The ultraviolet irradiation dose is selected according to the specification requirements, and irradiation is performed in three cases: ① The subject's skin is not coated with the sample; ② The standard reference sample is applied; ③ The sample to be tested (the sunscreen product prepared in Example 1, the same below) is applied. The experimental results are observed after 24 hours, and the MED values ​​in the three cases are recorded respectively.

[0092] Calculation method of SPF value after bathing: The SPF value of a sample or standard product protecting a single subject is expressed as follows:

[0093]

[0094] Calculate the arithmetic mean of the SPF values ​​of all subjects protected by the sample, and take the integer part as the SPF value of the measured sample.

[0095] The test results are shown in Table 4.

[0096] (3) UV protection index PFA value test method

[0097] Test article: Sunscreen products

[0098] Reference substance: PFA value 4.4±0.6, prepared according to the standard formula of PFA standard substance in the "Technical Specification for Safety of Cosmetics" (2015 edition).

[0099] Subjects: Healthy volunteers aged 18 to 60 years old, both male and female, who meet the volunteer inclusion criteria.

[0100] Light source: Daylight simulator xenon arc lamp, all performance items meet the measurement specification requirements.

[0101] Test method:

[0102] The test was conducted with reference to the specific requirements of the "Technical Specifications for Safety of Cosmetics" (2015 edition). The subjects were placed in a prone position and their backs were exposed to the radiation. The minimum sustained darkening amount (MPPD value) of the subjects' skin to ultraviolet radiation was predicted 24 hours before the test, and the ultraviolet radiation dose was adjusted according to the predicted results for the test samples. On the day of the test, a spot no less than 30 cm was selected on the back of the subject. 2 Normal skin area, (2.00±0.05)mg / cm 2 Apply the sample to be tested or the standard reference substance evenly on the above-mentioned area with the sample dosage, wait for 15 minutes or proceed as required by the label instructions. Then select the appropriate ultraviolet irradiation dose and irradiate in three situations: ① Do not apply the sample to the subject's skin; ② Apply the standard control sample; ③ Apply the sample to be tested. Observe the experimental results after 2 to 4 hours, and record the MPPD values ​​in the three situations respectively. PFA value calculation method: The PFA value of the sample or standard substance protecting a single subject is expressed by the following formula:

[0103]

[0104] Calculate the arithmetic mean of the PFA values ​​of all subjects in the sample protection, and take the integer part as the PFA value of the measured sample. The specific results are shown in Table 4.

[0105] Table 4

[0106]

[0107] It can be seen from Table 3 that the SPF value obtained after testing on the human body is 72.8, which meets the application requirements of SPF50+; the SPF value of the human body tested after bathing for 40 minutes is 41.6, from which it can be seen that after bathing for 40 minutes, the water-in-oil sunscreen product prepared in Example 1 still has a certain performance of resisting ultraviolet rays, and the retention rate of the SPF value is greater than 50%, from which it can be seen that the water-in-oil sunscreen product prepared in this application has excellent waterproof performance; the PFA value obtained by testing after ultraviolet irradiation is 17, and the water-in-oil sunscreen product prepared in Example 1 has excellent performance against ultraviolet radiation.

Claims

1. An oil-in-water waterproof sunscreen product with high sun protection value, characterized in that: The composition includes the following components by mass percentage: 60%-80% of water phase, 10%-30% of sunscreen phase, 1%-8% of emulsifier phase, and 5%-15% of dispersible oil; The sunscreen includes organic sunscreen and inorganic sunscreen; The emulsifier phase includes one or more of polyglycerol fatty acid esters, polyethylene glycol fatty acid esters, and alkanol-modified acrylates.

2. The oil-in-water waterproof high sun protection value sunscreen product according to claim 1, characterized in that: The water phase comprises water, glycerin, dipropylene glycol, tromethamine, 1,2-hexanediol, allantoin and a thickener.

3. The oil-in-water waterproof high sun protection value sunscreen product according to claim 2, characterized in that: The thickener includes one or more combinations of ammonium acryloyldimethyltaurate / VP copolymer, polyacrylate cross-linked polymer-6, acrylic acid (ester) / C10-30 alkyl acrylate cross-linked polymer, carbomer, and xanthan gum.

4. The oil-in-water waterproof high sun protection value sunscreen product according to claim 1, characterized in that: The organic sunscreen includes homosalate, ethylhexyl salicylate, phenylbenzimidazole sulfonic acid, bis-ethylhexyloxyphenol methoxyphenyl triazine, butyl methoxydibenzoylmethane, and methylene bis-benzotriazolyl tetramethylbutylphenol.

5. The oil-in-water waterproof high sun protection value sunscreen product according to claim 1, characterized in that: The inorganic sunscreen includes one or more of titanium dioxide, zinc oxide, aluminum hydroxide, and cerium oxide.

6. The oil-in-water waterproof high sun protection value sunscreen product according to claim 1, characterized in that: The polyglycerol fatty acid ester includes one or more of polyglyceryl-6 stearate, polyglyceryl-2 oleate, polyglyceryl-6 dioleate, polyglyceryl-10 oleate, polyglyceryl-10 stearate, and diisostearoyl polyglyceryl-3 polylinoleate.

7. The oil-in-water waterproof high sun protection value sunscreen product according to claim 1, characterized in that: The polyethylene glycol fatty acid ester includes one or more of PEG-100 stearate, PEG-30-dipolyhydroxystearate, PEG-20 stearate, PEG-8 stearate, PEG-8 laurate, and propylene glycol laurate.

8. The oil-in-water waterproof high sun protection value sunscreen product according to claim 1, characterized in that: The alkanol-modified acrylate includes poly C10-30 alkanol acrylate.

9. The oil-in-water waterproof high sun protection value sunscreen product according to claim 1, characterized in that: The dispersible oil includes one or more combinations of polydimethylsiloxane, diisopropyl sebacate, and octyl polymethylsiloxane.

10. The method for preparing the oil-in-water waterproof high sun protection value sunscreen product according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Stir the aqueous phase components thoroughly for 3 to 10 minutes until they are evenly dispersed and set aside; S2: Mix the sunscreen phase components and the emulsifier phase, stir evenly, and set aside; S3: slowly add the material prepared in step S1 to the material in step S2 under homogenizing conditions, and stir homogenously for 5 to 10 minutes to prepare a mixture 1. S4: slowly adding the dispersed oil into the mixed material 1 obtained in step S3, with a homogenization speed of 10-100 rpm and homogenization for 3-15 minutes to obtain an oil-in-water waterproof sunscreen product with a high sun protection value.

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