A sunscreen composition containing sea buckthorn seed oil, and a preparation method and application thereof

Abstract

The application discloses a sunscreen composition containing calophyllum inophyllum seed oil and a preparation method and application thereof, and relates to the field of cosmetics. The sunscreen composition comprises calophyllum inophyllum seed oil, an oil-soluble filter, an oil-soluble UVA filter, an oil-soluble UVB filter, a full-waveband chemical sunscreen agent and a physical sunscreen agent. The addition of the calophyllum inophyllum seed oil can completely replace or reduce the use of the chemical sunscreen agent, improve the proportion of natural ingredients in the formula, and the calophyllum inophyllum seed oil has strong absorption peaks in the ultraviolet full waveband of UVA and UVB, has a strong sunscreen synergistic effect, reduces the safety hidden danger of the formula under the premise of improving the sunscreen value, and even can obtain an environmentally friendly sunscreen product with a high sunscreen factor.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cosmetics, in particular to a sunscreen composition containing Malus sylvestris Mill seed oil and a preparation method and application thereof. BACKGROUND

[0002] Sunscreen active substances can be mainly divided into physical sunscreen and chemical sunscreen. The atomic particles of physical sunscreen are flaky, which can form a protective film on the skin to reflect sunlight and prevent ultraviolet rays from penetrating the skin surface, thereby achieving the purpose of sunscreen. Although physical sunscreen has a high safety factor, physical sunscreen products have the disadvantages of unnatural and insufficient moisturizing after being applied on the face, high requirements for removal, and insufficient sunscreen experience. Chemical sunscreen is a light-transmitting substance that can absorb ultraviolet rays and convert them into molecular vibration energy or heat energy to achieve the effect of sunscreen, and has the advantages of being light and easy to remove, but has a higher degree of irritation to the skin after use, and may not be environmentally friendly.

[0003] The use of chemical sunscreen agents in formulations poses a safety risk. Chemical sunscreen agents are divided into two categories based on safety and environmental friendliness. The first category is safe and environmentally friendly sunscreen agents, and the second category is sunscreen agents with safety risks / regulatory risks / environmental unfriendliness. The high amount of addition of the second category in formulations is commonly used to meet high-efficiency sunscreen, but it affects the proportion of natural ingredients in the formulation and cannot meet the requirements of environmental protection and safety. For example, ethylhexyl methoxy cinnamate, which is widely used in the market, is not environmentally friendly, and the maximum allowable concentration is 10%. Hawaii has banned the use of this sunscreen agent, and there is no solution to reduce or replace this controversial sunscreen agent. At the same time, excessive addition of such chemical sunscreen agents also affects the acceptance of the skin to the formulation product, the greasy feeling of the sunscreen product is aggravated, and the skin feels unwell, such as oiliness, whitening, and skin conditions such as skin sensitivity and pore blockage.

[0004] Environmental friendliness, especially ocean and coral friendliness, is a trend that sunscreen products will inevitably move towards in the future. Unfriendly sunscreen agents will gradually be eliminated when consumers purchase them, and there is an urgent need for more green and natural sunscreen products that do not have regulatory or safety disputes. SUMMARY

[0005] The present application provides a sunscreen composition containing Malus sylvestris Mill seed oil and a preparation method and application thereof. The sunscreen synergistic effect of Malus sylvestris Mill seed oil and other components can replace or completely replace chemical sunscreen agents with safety risks such as ethylhexyl methoxy cinnamate and butyl methoxydibenzoylmethane. The safety risk factor is reduced due to the safety of each sunscreen component or the lower amount of addition required, so as to obtain a sunscreen product with high sunscreen factor, mild formulation, low safety risk, and even environmental friendliness.

[0006] To solve the above technical problems, one of the purposes of the present application provides a sunscreen composition containing sea buckthorn seed oil, which comprises the following components by weight:

[0007] Sea buckthorn (CALOPHYLLUM INOPHYLLUM) seed oil: 0.5-25 parts;

[0008] Oil-soluble filter: 0-10 parts;

[0009] Oil-soluble UVA filter: 1-10 parts;

[0010] Oil-soluble UVB filter: 0.1-2 parts;

[0011] Full-band chemical sunscreen agent: 1-8 parts;

[0012] Physical sunscreen agent: 1-8 parts;

[0013] The oil-soluble filter is butyl methoxydibenzoylmethane and / or ethylhexyl methoxycinnamate.

[0014] As a preferred solution, the weight of the sea buckthorn (CALOPHYLLUM INOPHYLLUM) seed oil is 5-25 parts.

[0015] To solve the above technical problems, the second purpose of the present application provides a sunscreen composition containing sea buckthorn seed oil, which comprises the following components by weight:

[0016] Sea buckthorn (CALOPHYLLUM INOPHYLLUM) seed oil: 0.5-25 parts;

[0017] Oil-soluble filter: 3-10 parts;

[0018] Oil-soluble UVA filter: 1-10 parts;

[0019] Oil-soluble UVB filter: 0.1-2 parts;

[0020] Full-band chemical sunscreen agent: 1-8 parts;

[0021] Physical sunscreen agent: 0-8 parts;

[0022] The oil-soluble filter is butyl methoxydibenzoylmethane and / or ethylhexyl methoxycinnamate.

[0023] As a preferred solution, the oil-soluble UVA filter is at least one of diethylaminohydroxybenzoyl hexyl benzoate, bis-ethylhexyloxyphenol methoxyphenyl triazine, and p-xylylene dicyclohexane sulfonic acid.

[0024] As a preferred solution, the oil-soluble UVA filter includes 0.5-5 parts by weight of diethyl hydroxybenzoyl hexyl benzoate and 0.5-5 parts of bis-ethylhexyloxyphenol methoxyphenyl triazine.

[0025] As a preferred solution, the oil-soluble UVB filter is ethylhexyl triazone.

[0026] As a preferred solution, the full-spectrum chemical sunscreen agent includes methylene bis-benzotriazolyl tetramethylbutylphenol and / or bis-ethylhexyloxyphenol methoxyphenyl triazine.

[0027] As a preferred solution, the physical sunscreen agent is titanium dioxide and / or zinc oxide.

[0028] To solve the above technical problems, the third object of the present application provides an application of a sunscreen composition containing sea buckthorn seed oil in sunscreen cosmetics, wherein the addition amount of the sunscreen composition in the sunscreen cosmetics is 1-25wt%.

[0029] As a preferred solution, the sunscreen cosmetic is one of sunscreen agents, sunscreen creams, sunblock creams, BB creams, and foundation liquids.

[0030] To solve the above technical problems, the fourth object of the present application provides a sunscreen agent containing sea buckthorn seed oil, which comprises the following components by mass fraction:

[0031] Sunscreen composition: 1-25wt%;

[0032] Emulsifying thickener: 0.8-1.5wt%;

[0033] Emulsifier A: 2-4wt%;

[0034] Emulsifier B: 1.5-2.5wt%;

[0035] Potassium cetyl phosphate: 1-3wt%;

[0036] Water: the balance;

[0037] Among them, the emulsifying thickener includes 60-65wt% sodium polyacrylate, 30-36wt% ethylhexyl stearate, and 2-6wt% tridecyl alcohol polyether-6, the emulsifier A includes 70-80wt% glycerol and 20-30wt% inulin lauryl carbamate, and the emulsifier B includes 55-65wt% cetearyl olivate and 35-45wt% sorbitan olivate.

[0038] As a preferred solution, it further includes a moisturizing agent with a mass fraction of 1-21wt% in the sunscreen agent.

[0039] As a preferred solution, the emollient is C12-15 alcohol benzoate at 5-15wt% and dimethicone at 1-6wt% of the sunscreen.

[0040] As a preferred solution, the sunscreen further comprises a humectant at 5-15wt% of the sunscreen.

[0041] As a preferred solution, the humectant comprises butylene glycol at 3-8wt% and glycerin at 3-8wt% of the sunscreen.

[0042] As a preferred solution, the sunscreen further comprises a preservative at 0.9-1.4wt% of the sunscreen.

[0043] As a preferred solution, the preservative comprises p-hydroxyacetophenone at 0.4-0.6wt% and 1,2-hexanediol at 0.5-0.8wt% of the sunscreen.

[0044] As a preferred solution, the sunscreen further comprises an anticaking agent at 0.5-1wt% of the sunscreen.

[0045] As a preferred solution, the anticaking agent comprises aluminum starch octenylsuccinate at 80-90wt% and water at 10-20wt%.

[0046] To solve the above technical problems, the fifth aspect of the present application provides a preparation method of a sunscreen containing sea buckthorn seed oil, comprising the following steps:

[0047] (1) Prepare the preservative and humectant raw materials, mix them, and sterilize at 80-90℃ for standby, to obtain an aqueous phase raw material;

[0048] (2) Mix the emollient, oil-soluble filter, oil-soluble UVA filter, and oil-soluble UVB filter, heat them to 80-90℃ to fully dissolve, then add emulsifier B and potassium cetyl phosphate, and uniformly stir under heat, then add the physical sunscreen, and uniformly stir under heat, to obtain an oil phase raw material;

[0049] (3) Mix the aqueous phase raw material and the oil phase raw material, and homogenize at 80-90℃ until the system is uniform, then add the emulsifying thickener, and uniformly stir under heat, then reduce the temperature to 40-45℃ by stirring, add the full-band chemical sunscreen, sea buckthorn (Calophyllum inophyllum) seed oil, emulsifier A, and anticaking agent, and fully stir until uniform, to obtain the product.

[0050] Compared with the prior art, the present application has the following beneficial effects:

[0051] The sea buckthorn seed oil contains 72% of unsaturated fatty acids, including sea buckthorn lactone, punicic acid, and other coumarin substances, sea buckthorn aldehyde, sea buckthorn alcohol, sea buckthorn acid, and other triterpenes, and non-saponified substances of sterols, which are natural ingredients and have little skin irritation; and the sea buckthorn seed oil has strong absorption peaks in the UVA and UVB ultraviolet full wave band, the sea buckthorn seed oil of the present application can completely replace or reduce the use of chemical sunscreen agents, improve the proportion of natural ingredients in the formula, and has a strong sunscreen synergistic effect, reduces the safety hazards of the formula under the premise of improving the sunscreen value, and even can obtain an environmentally friendly sunscreen product with high sunscreen coefficient. BRIEF DESCRIPTION OF DRAWINGS

[0052] Figure 1 : UV spectrophotometer detection of the UV absorption spectrum of 8 kinds of chemical sunscreen agents and sea buckthorn seed oil (Note: the scanning wavelength is 280-780 nm). DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0054] Table 1-Source and model of raw materials in the examples and comparative examples of the present application

[0055]

[0056]

[0057] Examples 1-10

[0058] A sunscreen containing sea buckthorn seed oil, the components and amounts are shown in Tables 2-4, including sea buckthorn (CALOPHYLLUM INOPHYLLUM) seed oil, oil-soluble filter, emollient, oil-soluble UVA filter, oil-soluble UVB filter, broadband chemical sunscreen, titanium dioxide, emulsifying thickener, emulsifier A, emulsifier B, potassium cetyl phosphate, anti-caking agent, humectant and preservative, the oil-soluble UVA filter is diethylamino hydroxybenzoyl hexyl benzoate and bis-ethylhexyloxyphenol methoxyphenyl triazine, the oil-soluble UVB filter is ethylhexyl triazone, the emollient is C12-15 alcohol benzoate and dimethicone, the humectant is butylene glycol and glycerin in a mass ratio of 1:1, the preservative is p-hydroxyacetophenone and 1,2-hexanediol in a mass ratio of 1:1, the anti-caking agent includes 86wt% aluminum starch octenylsuccinate and 14wt% water, the emulsifying thickener includes 62wt% sodium polyacrylate, 34wt% ethylhexyl stearate and 4wt% tridecyl alcohol polyether-6, the emulsifier A includes 75wt% glycerin and 25wt% inulin lauryl carbamate, the emulsifier B includes 60wt% cetearyl olivate and 40wt% sorbitan olivate, the oil-soluble filter is ethylhexyl methoxy cinnamate or butyl methoxydibenzoylmethane, and the broadband chemical sunscreen is methylene bis-benzotriazolyl tetramethylbutylphenol.

[0059] The preparation method of the above-mentioned sunscreen containing sea buckthorn seed oil, including the following steps:

[0060] (1) Prepare the preservative and humectant raw materials, mix and heat to 85℃ for sterilization, and prepare the water phase raw materials;

[0061] (2) Mix the emollient, oil-soluble filter, oil-soluble UVA filter, and oil-soluble UVB filter, heat to 85℃ for sufficient dissolution, then add emulsifier B and potassium cetyl phosphate, and uniformly stir under heat, then add titanium dioxide, and uniformly stir under heat, to prepare the oil phase raw materials;

[0062] (3) Mix the water phase raw materials and the oil phase raw materials, and homogenize at 85℃ until the system is uniform, then add the emulsifying thickener, and uniformly stir under heat, then reduce the temperature to 45℃, add methylene bis-benzotriazolyl tetramethylbutylphenol, sea buckthorn (CALOPHYLLUM INOPHYLLUM) seed oil, emulsifier A and anti-caking agent, and uniformly stir, to obtain the product.

[0063] Table 2-Components and contents in Examples 1-7 of the present application

[0064]

[0065]

[0066] Table 3 - Components and amounts in Examples 8-10 and Comparative Examples 1-6 of the present application

[0067]

[0068]

[0069] Table 4 - Components and amounts in Comparative Examples 7-10 of the present application

[0070]

[0071] Performance test

[0072] 1. The SPF and PA values of the sunscreens of the examples and comparative examples were measured using a SPF-290S instrument. The principle of the instrument is that, according to the performance of the ultraviolet absorbers and shielding agents in sunscreen cosmetics, which can block ultraviolet rays, the product is applied to a special material, irradiated with different wavelengths of ultraviolet rays, and the absorbance value of the sample is measured. In combination with software operation, the SPF value and the critical wavelength of PA can be obtained in a short time, and the sunscreen effect can be directly evaluated according to the size of the measured value. The test method is as follows: the sample is uniformly applied to a 5 cm*5 cm PMMA plate using a syringe, the application amount is 5 mg, a finger cot is worn to apply the sample uniformly, and after the application is completed, the sample is placed in a dark environment for 20 minutes before being scanned and tested on the instrument. After completion, the ultraviolet absorption curve and the SPF and PFA values of the sample are obtained, and the test results are shown in Table 5 below.

[0073] Specifically, the conversion method between PFA value and PA is as follows:

[0074] PFA value less than 2: no UVA protection effect;

[0075] PFA value 2-3: PA+, representing effective, which can delay 2-4 times of tanning time;

[0076] PFA value 4-7: PA++, representing quite effective, which can delay 4-8 times of tanning time;

[0077] PFA value 8-15: PA+++, representing very effective, which can delay 8-15 times of tanning time;

[0078] PFA value ≥ 16: PA++++, which can delay more than or equal to 16 times of tanning time.

[0079] 2. The stability centrifuge test of the sunscreens of the examples and comparative examples was performed using a TG-16 high-speed centrifuge with a centrifuge stability test parameter of 3000 rpm / 30 min. The test results are shown in Table 5 below. If there is centrifugal oil floating, centrifugal stratification, or centrifugal non-uniformity, it is considered to be centrifugally unstable, and is determined to be unqualified.

[0080] Table 5 - Results of instrumental SPF and PA values of sunscreens in examples and comparative examples of the present application

[0081]

[0082]

[0083] Comparing the results of examples 2-6 and comparative examples 1-2, 5 in table 5, and Figure 1 It can be seen that ethylhexyl methoxy cinnamate has a strong absorption peak in the UVB band, and that argan oil has a strong absorption peak in the UVA and UVB ultraviolet full band, so the addition of argan oil can replace ethylhexyl methoxy cinnamate. When the content of argan oil is more than 5%, complete replacement can be achieved, the sunscreen synergistic effect is best, the SPF value and PFA value are both high, and an environmentally friendly mild sunscreen is prepared, which reduces the safety hazards of the formula under the premise of meeting the sunscreen value.

[0084] Comparing the sunscreen coefficients of comparative examples 1-4 and comparative example 2, it can be found that comparative example 2 does not add argan oil compared to examples 1-4. It can be found that the SPF value of example 3 is increased by 26.5% compared to comparative example 2, and the PFA value is increased by 25%. The SPF value of example 4 is increased by 44.3% compared to comparative example 2, and the PFA value is increased by 72%. This shows that when argan oil is used to partially replace ethylhexyl methoxy cinnamate in the formula, the sunscreen synergistic effect is higher, and the safety hazards of the formula are reduced under the premise of improving the sunscreen value.

[0085] Comparing the sunscreen coefficients of comparative examples 5-6, comparative example 1 and comparative example 5, it can be found that comparative example 5 does not add argan oil compared to comparative example 1 and examples 5-6. It can be found that the SPF value of comparative example 1 is increased by 75.4% compared to comparative example 5, and the PFA value is increased by 14.2%. The SPF value of example 5 is increased by 176.6% compared to comparative example 5, and the PFA value is increased by 107.4%. The SPF value of example 6 is increased by 178.5% compared to comparative example 5, and the PFA value is increased by 130.8%. The sunscreen synergistic effect is large, which shows that when argan oil completely replaces ethylhexyl methoxy cinnamate to more than 5%, the sunscreen synergistic effect of argan oil and other components can be better realized.

[0086] It can be seen from the comparison of the results of Examples 3, 7 and Comparative Examples 3, 6 in Table 5 that when the sea buckthorn seed oil is not substituted or partially substituted for ethylhexyl methoxy cinnamate, the sunscreen system composed of the oil-soluble UVA filter, the oil-soluble UVB filter and the full-waveband chemical sunscreen agent can meet the requirement of high sun protection factor, and the addition of titanium dioxide does not result in the failure to meet the sun protection factor, while when the sea buckthorn seed oil is completely substituted for ethylhexyl methoxy cinnamate, the sunscreen system composed of the oil-soluble UVA filter, the oil-soluble UVB filter, the full-waveband chemical sunscreen agent and titanium dioxide is required to meet the requirement of high sun protection factor, and the absence of titanium dioxide or the full-waveband chemical sunscreen agent makes the sunscreen synergistic effect of the sea buckthorn seed oil insufficient.

[0087] The above-described specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present application, and it should be understood that the above-described embodiments are merely specific embodiments of the present application and are not intended to limit the protection scope of the present application. It is particularly pointed out that any modification, equivalent replacement, improvement, etc. made by those skilled in the art within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A sunscreen agent containing argan oil, characterized in that, The composition comprises the following components by mass fraction: Sunscreen composition: 17.5-24.5wt%; Emulsifying thickener: 0.8-1.5wt%; Emulsifier A: 2-4wt%; Emulsifier B: 1.5-2.5wt%; Potassium cetyl phosphate: 1-3wt%; Emollient 1-21wt%; Moisturizer 5-15wt; Preservative 0.9-1.4wt%; Anti-caking agent 0.5-1wt%; Water: the balance; The emulsifying thickener comprises 60-65wt% sodium polyacrylate, 30-36wt% ethylhexyl stearate and 2-6wt% tridecyl alcohol polyether-6, the emulsifier A comprises 70-80wt% glycerol and 20-30wt% inulin lauryl carbamate, and the emulsifier B comprises 55-65wt% cetyl stearyl alcohol olivate and 35-45wt% sorbitan olivate; The sunscreen composition is composed of the following components by weight: Calophyllum inophyllum seed oil: 3-10 parts; Oil-soluble filter: 5 parts; Oil-soluble UVA filter: 2 parts; Oil-soluble UVB filter: 0.5 parts; Full-band chemical sunscreen agent: 4 parts; Physical sunscreen agent: 3 parts; The oil-soluble filter is butyl methoxydibenzoylmethane and / or ethylhexyl methoxycinnamate; the oil-soluble UVA filter is diethylaminohydroxybenzoyl hexyl benzoate and bis-ethylhexyloxyphenol methoxyphenyl triazine; the oil-soluble UVB filter is ethylhexyl triazone; the full-band chemical sunscreen agent is methylene bis-benzotriazolyl tetramethylbutylphenol; the physical sunscreen agent is titanium dioxide; the oil-soluble UVA filter is composed of 1.5 parts of diethylaminohydroxybenzoyl hexyl benzoate and 0.5 parts of bis-ethylhexyloxyphenol methoxyphenyl triazine by weight; and the anti-caking agent comprises 80-90wt% aluminum starch octenyl succinate and 10-20wt% water.

2. The sunscreen agent containing Malania Oleifera seed oil according to claim 1, characterized by, At least one of the following a)-c) is satisfied: a) The emollient is C12-15 alcohol benzoate accounting for 5-15wt% of the mass fraction of the sunscreen agent and 1-6wt% of dimethicone; b) The moisturizer comprises butanediol accounting for 3-8wt% of the mass fraction of the sunscreen agent and 3-8wt% of glycerol; c) The preservative comprises p-hydroxyacetophenone accounting for 0.4-0.6wt% of the mass fraction of the sunscreen agent and 1,2-hexanediol accounting for 0.5-0.8wt%.

3. A process for the preparation of a sunscreen agent containing argan oil as claimed in claim 2, characterized in that, The method comprises the following steps: (1) Prepare the preservative and moisturizer raw materials, mix them, and sterilize by heating to 80-90℃ for standby, to prepare the water phase raw materials; (2) Mix the emollient, oil-soluble filter, oil-soluble UVA filter and oil-soluble UVB filter, heat them to 80-90℃ to fully dissolve, then add the emulsifier B and potassium cetyl phosphate, uniformly stir and keep warm, then add the physical sunscreen agent, uniformly stir and keep warm, to obtain the oil phase raw materials; (3) After mixing the water phase raw materials and oil phase raw materials, homogenize at 80-90°C until the system is uniform, then add the emulsifying thickener, keep stirring and uniform, stir and cool to 40-45°C, add the full-waveband chemical sunscreen, CALOPHYLLUM INOPHYLLUM seed oil, emulsifier A and anti-caking agent, fully stir until uniform, and it is obtained.

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