Macromolecular mild high-power sunscreen and hair care essential oil for sensitive skin and preparation method of macromolecular mild high-power sunscreen and hair care essential oil

Abstract

The invention provides macromolecular mild high-power sunscreen hair care essential oil capable of being used for sensitive skin and a preparation method of the macromolecular mild high-power sunscreen hair care essential oil, and the hair care essential oil comprises the following components in percentage by mass: 20-50% of isododecane; 5% to 20% of polydimethylsiloxane; 10 to 25% of caprylic / capric triglyceride; 10 to 30% of dibutyl adipate; 2.8-5% of a first chemical sun-screening agent; 7.6-10% of a second chemical sun-screening agent; 10 to 20% of C12-15 alcohol benzoate, and 10 to 20% of C12-15 alcohol 0.5 to 5 percent of squalane; 1.5 to 15% of vegetable oil; and 0.2 to 0.4 percent of tocopheryl acetate. According to the macromolecular mild high-power sunscreen hair care essential oil capable of being used for sensitive skin, after a chemical sunscreen agent is added on the basis of an existing hair care essential oil technology, a computable ultraviolet ray absorption sunscreen effect can be achieved, and the protection and absorption effects on UVB and UVA are most direct and instant; the degradation of hair keratin, the breakage of disulfide bonds and the damage to hair cuticles caused by ultraviolet rays and the decomposition of melanin or hair dye caused by the ultraviolet rays are directly avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of washing and caring products, in particular to a macromolecular mild high-multiplying sunscreen hair care essential oil for sensitive skin and a preparation method thereof. BACKGROUND

[0002] For facial care, the concept of sunscreen, anti-aging, anti-aging and whitening has been deeply rooted in people's minds. For the maintenance of hair, consumers' demand for fine hair care is also rising, and most consumers have increased their spending on washing and caring products. More and more consumers are willing to buy repair and moisturizing hair care essential oils to protect hair, reduce hair damage caused by dyeing and perming, sun exposure, etc., and make hair look brighter, smoother, healthier and fuller.

[0003] Hair is mainly composed of epidermal layer, cortex layer and medulla layer, which is a natural high molecular keratin fiber. However, ultraviolet rays in sunlight, excessive dyeing and perming, etc. will cause the loss of protein, amino acid, water and lipid in hair, causing the lifting and peeling of hair cuticle, leading to dry and tangled hair, split ends and lack of luster. The damage of ultraviolet rays to hair is not less than that to skin. Hair is the most easily ignored sunscreen part, and the damage of ultraviolet rays to hair is cumulative and irreversible.

[0004] Ultraviolet light accounts for 6% of all light rays that reach the earth's surface, and the wavelength of ultraviolet light ranges from 100 to 400 nm. According to the wavelength, ultraviolet light is divided into short-wave ultraviolet light (UVC for short, wavelength 200-290 nm), medium-wave ultraviolet light (UVB for short, wavelength 290-320 nm), and long-wave ultraviolet light (UVA for short, wavelength 320-400 nm). Among them, UVC can be basically absorbed by the atmospheric ozone layer, so it is basically impossible to reach the earth's surface; UVB can penetrate the atmosphere, but it will be blocked by glass, accounting for about 5% of ultraviolet light; UVA accounts for about 95% of ultraviolet light, not only can penetrate the atmosphere, but also can penetrate glass, and the harm in the human body has an additive effect. According to the law of wavelength and energy, the shorter the wavelength, the stronger the energy, so UVB is easy to cause sunburn and sunburn after irradiating the skin surface. According to the wave diffraction, the longer the wavelength, the stronger the penetration, so UVA is more likely to reach the dermis and damage collagen and elastin as well as hair keratin, causing wrinkles and split ends, in addition, UVA also promotes the formation of melanin, leading to sunburn. Therefore, the main function of sunscreen products is to absorb or reflect UVA and UVB to achieve the effect of protecting the skin and the human body. The damage of ultraviolet light to hair is cumulative and irreversible, mainly manifested in the following points: first, ultraviolet light erodes and destroys the edge of the outermost layer of hair scales, causing the outer layer of cuticle to curl up, peel off, and lose smoothness, which directly leads to hair frizz, knotting, and easy breakage; then, keratin photodegradation, ultraviolet light excites cystine oxidation in hair, directly cutting off the keratin chain, and cystine is converted to cysteine under ultraviolet light, cutting off the disulfide bond that maintains the strength of the hair, and the hair core forms a honeycomb-like cavity. Experimental data shows that after 100 hours of exposure, the tensile strength of the hair decreases by 40%, and the elasticity is lost by 50%; finally, lipid loss, ultraviolet light oxidizes 18-MEA (lipid layer) inside the hair, causing the loss of the slip layer, accelerating water evaporation, and making the hair dry like straw. Healthy hair after exposure, the carboxyl and amino groups of keratin will be oxidized, reducing the ability of hair to bind water, and the water content will decrease from 15% to 6%, increasing static electricity. In addition, ultraviolet light will cause melanin decomposition and hair dye discoloration. Specifically, UVB can penetrate the hair cortex, cleave eumelanin and pheomelanin, causing hair discoloration; UVA can activate the azo group in oxidized artificial pigment, decompose the dye, and make the hair color fade faster.

[0005] However, the current market sunscreen products are mainly for the face, and there are almost no sunscreen products for hair. The ordinary hair care oil for hair is mainly composed of volatile oil, synthetic oil, squalane, and plant oil, which can repair hair scales and lock in moisture, but has no ability to absorb or reflect ultraviolet light (especially UVA and UVB), and cannot achieve the effect of sunscreen to reduce the damage of ultraviolet light to hair.

[0006] While most of the sunscreens on the market for the face and body are physically and chemically sunscreens, most of the oil-soluble chemical sunscreen molecules have small molecular weights, and the sunscreen ingredients can partially penetrate the skin, causing some consumers with sensitive skin to be not friendly, and there are concerns about the impact of sunscreens on skin health. Therefore, the sunscreens on the market for the face and body cannot be directly applied to the hair. SUMMARY

[0007] The purpose of the present application is to provide a sensitive skin-friendly large molecule mild high SPF sunscreen hair care essential oil and a preparation method thereof, which can at least solve one of the above problems.

[0008] According to one aspect of the present application, a sensitive skin-friendly large molecule mild high SPF sunscreen hair care essential oil is provided, comprising the following ingredients in mass percentage: Isododecane, 20-50%; Polydimethylsiloxane, 5-20%; Caprylic / capric triglyceride 10-25%; Dibutyl adipate 10-30%; First chemical sunscreen, 2.8-5%; Second chemical sunscreen, 7.6-10%; C12-15 alcohol benzoate, 10-20%; Squalane, 0.5-5%; Vegetable oil, 1.5-15%; Tocopheryl acetate, 0.2-0.4%.

[0009] In some embodiments, the first chemical sunscreen is ethylhexyl triazone.

[0010] In some embodiments, the second chemical sunscreen is bis-ethylhexyloxyphenol methoxyphenyl triazine.

[0011] In some embodiments, the vegetable oil includes one or more of olive oil, jojoba seed oil, coconut oil.

[0012] In some embodiments, the vegetable oil includes the following ingredients in mass percentage: Olive oil, 0.5-5%; Jojoba seed oil, 0.5-5%; Coconut oil, 0.5-5%.

[0013] In some embodiments, the sensitive skin-friendly large molecule mild high SPF sunscreen hair care essential oil is characterized in that it further comprises the following ingredients in mass percentage: Essential oil, 0.1-0.2%.

[0014] In some embodiments, isododecane is 40-50%, dimethicone is 5-10%, caprylic / capric triglyceride is 10-20%, dibutyl adipate is 10-20%, the first chemical sunscreen agent is 2.8-3.2%, and the second chemical sunscreen agent is 7.6-8%.

[0015] In some embodiments, isododecane is 30-38%, dimethicone is 10-15%, caprylic / capric triglyceride is 15-25%, dibutyl adipate is 10-20%, the first chemical sunscreen agent is 3.5-4%, and the second chemical sunscreen agent is 8-8.5%.

[0016] In some embodiments, isododecane is 20-30%, dimethicone is 10-20%, caprylic / capric triglyceride is 15-25%, dibutyl adipate is 15-30%, the first chemical sunscreen agent is 4-5%, and the second chemical sunscreen agent is 8-10%.

[0017] According to another aspect of the present application, a preparation method of a macromolecular mild high-multiple sunscreen hair care essential oil for sensitive skin is also provided, at least comprising the following steps: All the above raw materials are added to a dry container, heated to 83℃, stirred for 15 minutes to dissolve to transparent, then continue to stir to cool to 38℃, filter the material, and stand to obtain the macromolecular mild high-multiple sunscreen hair care essential oil for sensitive skin.

[0018] The present application has the following advantages: The present application provides a macromolecular mild high-multiple sunscreen hair care essential oil for sensitive skin with a new formula, which has at least the following advantages: 1. The macromolecular mild high-multiple sunscreen hair care essential oil for sensitive skin of the present application can achieve a calculable ultraviolet absorption sunscreen effect after adding a chemical sunscreen agent to the existing hair care essential oil technology, the protection and absorption effect of UVB and UVA is the most direct and immediate, which directly avoids the degradation of hair keratin, the breakage of disulfide bond, the damage to hair cuticle, and the decomposition of melanin or hair dye by ultraviolet rays; 2. The macromolecular mild high-multiple sunscreen hair care essential oil for sensitive skin of the present application has a stronger hair care, color protection, and repair and nourishing effect, which can effectively avoid cumulative brittle fracture; 3. The macromolecular mild high-multiple sunscreen hair care essential oil for sensitive skin of the present application selects a chemical sunscreen agent with a molecular weight greater than 500 daltons and a very low transdermal absorption rate, which has no penetration risk and is very safe on the basis of playing a role in sunscreen and absorbing ultraviolet rays.

[0019] 4. The high-protection, high-molecular-weight hair oil for sensitive skin of this invention is free of alcohol, fragrance, preservatives, and emulsifiers, reducing the potential damage to hair and scalp caused by hazardous substances. Detailed Implementation

[0020] The present invention will now be described in further detail.

[0021] According to one aspect of the present invention, a macromolecular, gentle, high-SPF sunscreen hair oil suitable for sensitive skin is provided.

[0022] This high-SPF, gentle, high-protection hair oil suitable for sensitive skin contains at least the following components by weight percentage: Isododecane, 20-50%; Polydimethylsiloxane, 5-20%; Caprylic / capric triglycerides 10-25%; Dibutyl adipic acid 10-30%; First chemical sunscreen agent, 2.8-5%; Secondary chemical sunscreen agent, 7.6-10%; C12-15 alcohol benzoate, 10-20%; Squalane, 0.5-5%; Vegetable oil, 1.5-15%; Tocopherol acetate, 0.2-0.4%.

[0023] As a preferred option, the first chemical sunscreen agent is ethylhexyltriazine.

[0024] As a preferred option, the second chemical sunscreen agent is bis-ethylhexyloxyphenol methoxyphenyl triazine.

[0025] Preferred vegetable oils include one or more of olive oil, jojoba seed oil, and coconut oil.

[0026] As a further preferred embodiment, the vegetable oil comprises the following components by weight percentage: Olive oil, 0.5-5%; Jojoba seed oil, 0.5-5%; Coconut oil, 0.5-5%.

[0027] As a preferred choice, the high-SPF, gentle, high-protection hair oil suitable for sensitive skin also includes the following ingredients by weight percentage: Essential oil, 0.1-0.2%.

[0028] Of the above components: Isododecane: content is 100%, ingredient is isododecane, manufacturer is Huizhou Hongyu Technology Co., Ltd.; Isododecane has moderate volatility, can adjust the skin feel, make the hair care oil lighter, no sticky feeling when applying, enhance the waterproof and sweat resistance, no sensitization and no risk of causing acne, suitable for people with sensitive skin.

[0029] Dimethicone: DC200 10cst is adopted, the model is XIAMETER™ PMX-200 Silicone Fluid 10 cst, the manufacturer is Dow Corning (Shanghai) Management Co., Ltd., and the main ingredient is 100% dimethicone; The role of dimethicone mainly reflects the enhancement of product stability, improvement of use feeling and prolongation of sunscreen effect. It does not directly absorb ultraviolet rays, but cooperates with the first and second chemical sunscreens to ensure that the sunscreen product can be more evenly and durably covered on the surface.

[0030] Caprylic / capric triglyceride: English abbreviation GTCC, model MYRITOL 318RC, ingredient is caprylic / capric triglyceride, content 100%, manufacturer is BASF (China) Co., Ltd. Dibutyl adipate: manufacturer is BASF (China) Co., Ltd. Ethylhexyl triazone: English abbreviation EHT, model HV-SUNSYN® ET, ingredient is ethylhexyl triazone, content is 100%, manufacturer is Guangzhou Kofosson New Material Co., Ltd. Bis-ethylhexyloxyphenol methoxyphenyl triazine, English abbreviation Shield, model Mfsorb 509H, ingredient is bis-ethylhexyloxyphenol methoxyphenyl triazine, content is 100%, manufacturer is Huanggang Meifeng Chemical Technology Co., Ltd. C12-15 Alkyl Benzoate: English abbreviation Crodamd-AB, model CRODAMOL AB-LQ-(RB) (version number_1.0), content is 100%, ingredient is C12-15 Alkyl Benzoate, manufacturer is Croda Chemicals (Shanghai) Co., Ltd. Squalane: model Neossance™ Squalane, ingredient is squalane, content is 100%, manufacturer is Aprinnova, LLC. Olive oil: content is 100%, ingredient is olive oil, manufacturer is OLEO MARTOS S.L Jojoba seed oil: model JD Jojoba Golden Oil, ingredient is jojoba (SIMMONDSIA CHINENSIS) seed oil, content is 100%, manufacturer is Jojoba Desert (A.C. S) Ltd. Coconut oil: brand MCT Oil, ingredient Coconut (Cocos nucifera) oil, content 100%, manufacturer Draco Natural Products Inc. Tocopheryl acetate: brand Vitamin E-Acetate Care, ingredient Tocopheryl acetate, content 100%, manufacturer BASF CORPORATION; Essential oil: ingredient Orange (Citrus tangerina) peel oil, content 100%, manufacturer Diffusions Aromatiques.

[0031] Among the above ingredients, ethylhexyl triazone and bis-ethylhexyloxyphenol methoxyphenyl triazine are the main sunscreen agents, which not only reduce the damage of ultraviolet rays to hair cuticle, reduce the cutting effect of ultraviolet rays on the disulfide bond of cystine in keratin, reduce the oxidation of ultraviolet rays to the lipid and hydrophilic group of hair, but also reduce the damage of ultraviolet rays to melanin and hair dye, and have very excellent hair care and color protection effect.

[0032] Coconut oil, olive oil, jojoba seed oil and other natural plant oils are mainly composed of fatty acid glycerides, which can be divided into four categories: saturated fatty acids, monounsaturated fatty acids, polyunsaturated fatty acids, liquid waxes and high unsaturated straight chain alkene acid and fatty alcohol ester. These ingredients have strong adsorption capacity to hair keratin, good penetration effect, can prevent hair cuticle from swelling and falling off, maintain the integrity of hair shaft, and have obvious repair effect on deep damage of hair. The natural antioxidant active ingredients such as tocopherol and various flavonoids in plant oil can play the physiological role of removing free radicals, improve the toughness of hair, improve the condition of hair loss and hair loss, and at the same time can reduce the loss of water on the scalp and hair, reduce hair breakage, resist hair tangles, improve combing performance and improve hair gloss, and have very obvious repair and smoothing effect on hair.

[0033] Some plant oils such as olive oil also have good absorption effect on UVB and UVA, which can further enhance the sun protection effect of the whole essential oil on hair.

[0034] For example, the addition of DC200 10cst, isododecane, squalane, dibutyl adipate and other oils can increase the repair and moisturizing effect of the whole formula on hair, reduce the greasy feeling brought by sunscreen ingredients, make the whole formula more refreshing and not greasy, and be more suitable for use in summer with high ultraviolet intensity.

[0035] Tocopheryl acetate has the effect of resisting ultraviolet damage, and as an auxiliary sunscreen ingredient, it can reduce UVB-induced DNA damage and relieve post-sun erythema reaction.

[0036] Finally, the essential oil is a plant essential oil, which can cover the peculiar smell of sunscreen ingredients and plant oils, etc., so that the use experience is better.

[0037] According to another aspect of the present application, a preparation method of the macromolecular mild high-multiple sunscreen hair care essential oil for sensitive skin is also provided, which is characterized by at least comprising the following steps: All the above raw materials are added into a dry container, heated to 83°C, stirred for 15 minutes to dissolve into transparency, then continue to stir to cool to 38°C, filter out the material, and stand to obtain the macromolecular mild high-multiple sunscreen hair care essential oil for sensitive skin.

[0038] The present application is further illustrated by specific examples, but the present application is not limited in the scope of the examples. The experimental methods not specified in the following examples are selected according to the conventional methods and conditions, or according to the product instructions.

[0039] The macromolecular mild high-multiple sunscreen hair care essential oil for sensitive skin of the present application at least includes the following three formulas in the actual production process: Formula one: the macromolecular mild high-multiple sunscreen hair care essential oil for sensitive skin at least includes the following ingredients in mass percentage: Isododecane, 40-50%; Polydimethylsiloxane, 5-10%; Caprylic / capric triglyceride, 10-20%; Dibutyl adipate, 10-20%; Ethylhexyl triazone, 2.8-3.2%; Bis-ethylhexyloxyphenol methoxyphenyl triazine, 7.6-8%; C12-15 alcohol benzoate, 10-20%; Squalane, 0.5-5%; Olive oil, 0.5-5%; Jojoba seed oil, 0.5-5%; Coconut oil, 0.5-5%; Tocopheryl acetate, 0.2-0.4%; Essential oil, 0.1-0.2%.

[0040] Formula two: the macromolecular mild high-multiple sunscreen hair care essential oil for sensitive skin at least includes the following ingredients in mass percentage: Isododecane, 30-38%; Polydimethylsiloxane, 10-15%; Caprylic / capric triglyceride, 15-25%; Dibutyl adipate, 10-20%; Ethylhexyl triazone, 3.5-4%; Bis-ethylhexyloxyphenol methoxyphenyl triazine, 8-8.5%; C12-15 Alcohols benzoate, 10-20%; Squalane, 0.5-5%; Olive oil, 0.5-5%; Jojoba seed oil, 0.5-5%; Coconut oil, 0.5-5%; Tocopheryl acetate, 0.2-0.4%; Essential oil, 0.1-0.2%.

[0041] Formulation three: the macromolecular mild high-fold sunscreen hair care essential oil available for sensitive skin at least includes the following ingredients in mass percentage: Isododecane, 20-30%; Dimethicone, 10-20%; Caprylic / capric triglyceride, 15-25%; Dibutyl adipate, 15-30%; Ethylhexyl triazone, 4-5%; Bis-ethylhexyloxyphenol methoxyphenyl triazine, 8-10%; C12-15 Alcohols benzoate, 10-20%; Squalane, 0.5-5%; Olive oil, 0.5-5%; Jojoba seed oil, 0.5-5%; Coconut oil, 0.5-5%; Tocopheryl acetate, 0.2-0.4%; Essential oil 0.1-0.2%.

[0042] The above three formulations are realized by the following specific embodiments: Embodiment 1-5: Embodiment 1-5 is a specific embodiment of formulation one.

[0043] The specific components and contents of embodiment 1-5 refer to the following table 1: Table 1: ingredient table of embodiment 1-5:

[0044] The macromolecular mild high-fold sunscreen hair care essential oil available for sensitive skin described in the above embodiment 1-5 is prepared by the following preparation method, which comprises the following steps: S1, clean, disinfect and keep dry the equipment and barrels needed, and keep standby; S2. Add all the above ingredients to a dry container, heat to 83°C, stir for 15 minutes until dissolved and transparent, then continue stirring and cool to 38°C. Take a sample for testing, filter after passing the test, and let stand to obtain a high-molecular-weight, gentle, high-SPF sunscreen hair oil suitable for sensitive skin. S3. After inspection and approval, filling, packaging, and coding are carried out. S4. After passing the random inspection, the goods are put into storage.

[0045] Examples 6-10 Examples 6-10 are specific embodiments of Formula 2.

[0046] The specific components and contents of Examples 6-10 are shown in Table 2 below: Table 2: Composition table of Examples 6-10:

[0047] The high-molecular-weight, gentle, high-SPF sunscreen hair oils suitable for sensitive skin described in Examples 6-10 above are prepared by the following method, which includes the following steps: S1. Clean, disinfect, and dry all equipment, utensils, and containers that will be used; S2. Add all the above ingredients to a dry container, heat to 83°C, stir for 15 minutes until dissolved and transparent, then continue stirring and cool to 38°C. Take a sample for testing, filter after passing the test, and let stand to obtain a high-molecular-weight, gentle, high-SPF sunscreen hair oil suitable for sensitive skin. S3. After inspection and approval, filling, packaging, and coding are carried out. S4. After passing the random inspection, the goods are put into storage.

[0048] Examples 11-15 Examples 11-15 are specific embodiments of Formula 3.

[0049] The specific components and contents of Examples 11-15 are shown in Table 3 below: Table 3: Ingredients of Examples 11-15

[0050] The high-molecular-weight, gentle, high-SPF sunscreen hair oils suitable for sensitive skin described in Examples 11-15 above are prepared by the following method, which includes the following steps: S1. Clean, disinfect, and dry all equipment, utensils, and containers that will be used; S2. Add all the above ingredients to a dry container, heat to 83°C, stir for 15 minutes until dissolved and transparent, then continue stirring and cool to 38°C. Take a sample for testing, filter after passing the test, and let stand to obtain a high-molecular-weight, gentle, high-SPF sunscreen hair oil suitable for sensitive skin. S3, after inspection, filling, packaging, code spraying; S4, after sampling, into the warehouse.

[0051] The above three hair care essential oils, the main sunscreen agent for sunscreen is ethylhexyl triazone and bis-ethylhexyloxyphenol methoxyphenyl triazine, the molecular weight of ethylhexyl triazone is 823 daltons, the molecular weight of bis-ethylhexyloxyphenol methoxyphenyl triazine is 627 daltons, both of which are macromolecular chemical sunscreens greater than 500 daltons, with very low transdermal absorption rate and high safety, suitable for sensitive skin.

[0052] Ethylhexyl triazone is the strongest oil-soluble absorber of UVB, with strong light stability, strong water resistance, good affinity for skin keratin, and an ultrahigh absorption rate of more than 1500 (extinction value) at 314 nm; bis-ethylhexyloxyphenol methoxyphenyl triazine is an oil-soluble organic compound added to sunscreen lotion to absorb ultraviolet rays. It is a broad-spectrum (wide-band) ultraviolet absorber with extremely high light stability, capable of absorbing UVB and even UVA. Its absorption peaks are at wavelengths of 310 nm and 340 nm.

[0053] After sunscreen computer simulation calculation, the hair care essential oils of formulations one to three can achieve SPF30, SPF35, SPF40, and PA+++ sun protection values.

[0054] Among them, SPF is against UVB, which refers to the ability to defend against UVB. SPF is the abbreviation of Sun protection factor, which means sun protection factor. The higher the sun protection factor of a cosmetic, the stronger its sun protection ability. The "sun protection" referred to here can only prevent skin from being sunburned, but not prevent tanning. Some studies suggest that the average skin type of East Asian people will produce erythema in 15 minutes, so a SPF sunscreen product, with SPF1 as the smallest unit, means that it can block UV rays for 15 minutes in the sun. SPF15 can block UV rays for 15*15=225 minutes, i.e. 3 hours and 15 minutes, SPF30 can block UV rays for 15*30=450 minutes, i.e. more than 7 hours, and SPF50 is 50*15=750, i.e. it can block 12.5 hours of UV rays without any protective measures.

[0055] PA is against UVA, which refers to the ability to defend against UVA. The more "+" after PA, the better the effect of defending long-wave ultraviolet rays, the less likely to tan and photoage. PA+++ corresponds to a PFA value (long-wave ultraviolet protection index) of about 8-15.

[0056] According to the following calculation formula of ultraviolet sunscreen efficiency, the protection against UVA and UVB is directly represented.

[0057] UVB sunscreen efficiency = (SPF-1) / SPF UVA sunscreen efficiency = (PA-1) / PA When SPF is 30, 97% of UVB can be protected, and when PA is 8, that is, PA+++ can protect 88% of UVA.

[0058] Therefore, the hair care essential oils of the formulas one to three of the present application can achieve the effect of protecting at least 88% of UVA and 97% of UVB before adding appropriate chemical sunscreen agents, and can sufficiently protect the hair from ultraviolet rays.

[0059] The above only describes some embodiments of the present application. For those skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. A macromolecule gentle high factor sunscreen hair treatment oil for sensitive skin, characterized in that, comprising the following ingredients in mass percentages: isododecane, 20-50%; dimethicone, 5-20%; caprylic / capric triglyceride 10-25%; dibutyl adipate 10-30%; a first chemical sunscreen agent, 2.8-5%; a second chemical sunscreen agent, 7.6-10%; C12-15 alcohol benzoate, 10-20%; squalane, 0.5-5%; a plant oil, 1.5-15%; tocopheryl acetate, 0.2-0.4%.

2. The macromolecule gentle high factor sunscreen hair treatment oil for sensitive skin of claim 1, wherein, The first chemical sunscreen agent is ethylhexyl triazone.

3. The macromolecule gentle high factor sunscreen hair treatment oil for sensitive skin of claim 1, wherein, The second chemical sunscreen agent is bis-ethylhexyloxyphenol methoxyphenyl triazine.

4. The macromolecule gentle high factor sunscreen hair treatment oil for sensitive skin of claim 1, wherein, The plant oil comprises one or more of olive oil, jojoba seed oil, coconut oil.

5. The sensitive skin friendly macromolecule gentle high factor sunscreen hair care essential oil of claim 4, wherein, The plant oil comprises the following ingredients in mass percentages: olive oil, 0.5-5%; jojoba seed oil, 0.5-5%; coconut oil, 0.5-5%.

6. The macromolecule gentle high factor sunscreen hair treatment oil for sensitive skin of claim 1, wherein, further comprising the following ingredients in mass percentages: essential oil, 0.1-0.2%.

7. The macromolecule gentle high factor sunscreen hair treatment oil for sensitive skin of claim 1, wherein, The isododecane is 40-50%, the dimethicone is 5-10%, the caprylic / capric triglyceride is 10-20%, the dibutyl adipate is 10-20%, the first chemical sunscreen agent is 2.8-3.2%, and the second chemical sunscreen agent is 7.6-8%.

8. The macromolecule gentle high factor sunscreen hair treatment oil for sensitive skin of claim 1, wherein, The isododecane is 30-38%, the dimethicone is 10-15%, the caprylic / capric triglyceride is 15-25%, the dibutyl adipate is 10-20%, the first chemical sunscreen agent is 3.5-4%, and the second chemical sunscreen agent is 8-8.5%.

9. The macromolecule gentle high factor sunscreen hair treatment oil for sensitive skin of claim 1, wherein, The isododecane is 20-30%, the dimethicone is 10-20%, the caprylic / capric triglyceride is 15-25%, the dibutyl adipate is 15-30%, the first chemical sunscreen agent is 4-5%, and the second chemical sunscreen agent is 8-10%.

10. A method of preparing a macromolecule mild high factor sunscreen hair care serum for sensitive skin as claimed in any one of claims 1 to 9, characterized in that, comprising at least the following steps: all raw materials are added to a dry container, heated to 83°C, stirred for 15 minutes to dissolve to transparency, then continue to stir to cool to 38°C, filter the material, and obtain a macromolecular mild high-concentration sunscreen hair care essential oil for sensitive skin after standing.

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