Sunscreen synergistic composition and application thereof

Abstract

The invention relates to a sunscreen synergistic composition and application thereof. The sunscreen synergistic composition is prepared from a sphingomonas fermentation product extract, wax powder, a dextrin thickener and butyl octanol salicylate, the dextrin thickening agent is prepared from dextrin palmitate and / or dextrin palmitate / ethyl hexanoate. The invention creatively finds that the four components, namely the sphingomonas fermentation product extract, the wax powder, the dextrin thickener and the butyl octanol salicylate, can interact and positively influence one another, and have a synergistic promotion effect which is unexpected by technicians in the field in the aspect of sunscreen synergism. The sunscreen synergistic composition provided by the invention is very suitable for skin care products, mild, non-irritant and good in stability.

Description

Technical Field

[0001] The invention belongs to the technical field of cosmetics and relates to a sunscreen synergistic composition and application thereof. Background Art

[0002] Excessive ultraviolet radiation can cause sunburn, pigmentation, photoaging and skin cancer, so sun protection has become an important part of people's daily skin care. Currently, existing sunscreen cosmetics mainly need to add sufficient sunscreen to ensure good sun protection effect.

[0003] At present, sunscreens can be roughly divided into physical sunscreens and chemical sunscreens. Among them, physical sunscreens protect the skin by reflecting and scattering ultraviolet rays and visible light. They are usually based on nano-scale titanium dioxide and zinc oxide, but they have certain shortcomings in sunscreen performance. Nano-scale physical sunscreens also have problems with photocatalytic activity and pulmonary inflammation caused by oral and nasal inhalation. Compared with physical sunscreens, chemical sunscreens are more effective in blocking ultraviolet rays. Chemical sunscreens absorb ultraviolet radiation and then re-release energy in the form of heat or light. Usually, sunscreen cosmetics use a combination of physical sunscreens and chemical sunscreens to improve the sunscreen effect of sunscreen products, while reducing the amount of chemical sunscreens to reduce the irritation to the skin caused by chemical sunscreens. Studies have shown that chemical sunscreens may interfere with human hormone secretion, so their harm to the human body cannot be completely ruled out. And it is possible to cause damage to the marine ecosystem, such as coral reef bleaching. However, physical sunscreens usually stay on the surface of the skin after use. Excessive use of physical sunscreens will make the skin appear fake white, making the makeup look unnatural, and will also clog the pores and make the skin feel dry.

[0004] Therefore, in view of the problems existing in existing sunscreen products, it is of great significance to further improve the formula of sunscreen products, reduce the amount of sunscreen in the products, and improve the safety of sunscreen products under the premise of ensuring the sunscreen effect. Summary of the invention

[0005] In view of the deficiencies of the prior art, the object of the present invention is to provide a sunscreen synergistic composition and its application in cosmetics.

[0006] In order to achieve the purpose of the invention, the present invention adopts the following technical solutions:

[0007] In a first aspect, the present invention provides a sunscreen synergistic composition, the sunscreen synergistic composition comprising a sphingomonas fermentation product extract, wax powder, a dextrin thickener, and butyl octanol salicylate;

[0008] The dextrin thickener includes dextrin palmitate and / or dextrin palmitate / ethylhexanoate.

[0009] The extract of Sphingomonas fermentation product is derived from Sphingomonas, and its fermentation product contains a variety of high-efficiency ingredients, which can inhibit the expression of two proteins related to skin aging, p21Waf1 and p16INK4a, rebuild the extracellular matrix, increase the synthesis of collagen and fibrin, and resist oxidative stress response; wax powder has excellent stability, and can increase the gloss of the product and make it easier to apply and push; dextrin thickeners are thixotropic, which can not only promote the better fusion of mixed oil and water ingredients, but also make the texture of the product smoother and more delicate; butyloctanol salicylate is an ester of salicylic acid and butyloctanol, which is a multifunctional cosmetic raw material that can enhance the sunscreen performance of sunscreens, stabilize and prevent the decomposition of sunscreen ingredients, and the ingredients are mild, easy to spread on the skin surface, and convenient to apply.

[0010] In the present invention, the composition composed of the above four specific ingredients can synergistically enhance the sunscreen performance of the sunscreen, and after addition, the dispersion uniformity of the overall formula and the thixotropy of the material are improved. The formed sunscreen product has high skin affinity and is easy to spread. After application, a protective film can be formed on the skin surface. The irregular combination of powder and dextrin crystals in the film greatly increases the optical path, reduces the contact between ultraviolet rays and the skin, improves the sunscreen performance, and reduces the use of sunscreen, achieving a better skin feel effect.

[0011] Preferably, the sunscreen synergistic composition comprises, by weight, 0.01-1 parts of an extract of a fermentation product of Aminomonas, 0.1-5 parts of wax powder, 0.1-2 parts of a dextrin thickener, and 1-10 parts of butyl octanol salicylate;

[0012] Wherein, the above-mentioned "0.01-1 part" can be, for example, 0.01 part, 0.02 part, 0.05 part, 0.08 part, 0.1 part, 0.12 part, 0.15 part, 0.18 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part, 0.6 part, 0.7 part, 0.8 part, 0.9 part, 1 part, etc.;

[0013] The above-mentioned “0.1-5 parts” can be, for example, 0.1 parts, 0.12 parts, 0.15 parts, 0.18 parts, 0.2 parts, 0.4 parts, 0.5 parts, 0.6 parts, 0.8 parts, 1 parts, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, etc.;

[0014] The above-mentioned “0.1-2 parts” can be, for example, 0.1 parts, 0.12 parts, 0.15 parts, 0.18 parts, 0.2 parts, 0.4 parts, 0.5 parts, 0.6 parts, 0.8 parts, 1 parts, 1.2 parts, 1.5 parts, 1.8 parts, 2 parts, etc.;

[0015] The above "1-10 parts" can be, for example, 1 part, 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, etc. Other specific point values ​​within this numerical range can be selected, and they will not be repeated here. In the present invention, when the dosage ratio of the components in the sunscreen synergistic composition is within the above specific range, it has a better sunscreen synergistic effect and skin feel improvement effect.

[0016] Preferably, the wax of the wax powder includes any one or a combination of at least two of carnauba wax, rice bran wax, rice bran wax, candelilla wax, beeswax, biodegradable wax, microcrystalline wax or paraffin wax, preferably a combination of carnauba wax and rice bran wax.

[0017] In a second aspect, the present invention provides a use of the sunscreen synergistic composition according to the first aspect in cosmetics;

[0018] The cosmetics include emulsion, lotion, cream and essence.

[0019] Preferably, the amount of the sunscreen enhancing composition added to the cosmetic is 4%-10% by mass, for example, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10%, etc. Other specific point values ​​within the numerical range can be selected and will not be described here one by one.

[0020] In the present invention, when the amount of the sunscreen synergistic composition added to the cosmetic is within the above-mentioned specific range, the sunscreen effect of the product can be further enhanced and the skin feel can be optimized. Specifically, when the amount of the sunscreen synergistic composition is too low, its effect on the synergy of the sunscreen agent and the optimization of the skin feel becomes worse; when the amount is too high, there is no obvious promoting effect on the improvement of the sunscreen effect, and it will also affect the skin feel of the product.

[0021] In a third aspect, the present invention provides a sunscreen lotion, comprising the sunscreen synergistic composition described in the first aspect, a sunscreen, a moisturizer, a thickener, an emulsifier and water.

[0022] Preferably, the sunscreen lotion comprises, by mass percentage, 4%-10% of the sunscreen synergistic composition described in the first aspect, 8%-20% of a sunscreen, 5%-18% of a moisturizer, 0.5%-3% of a thickener, 1%-10% of an emulsifier, 8%-15% of a film former and 30%-60% of water.

[0023] The above-mentioned “4%-10%” may be, for example, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10%, etc.;

[0024] The above-mentioned “8%-20%” may be, for example, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, etc.;

[0025] The above-mentioned “5%-18%” may be, for example, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, etc.;

[0026] The above-mentioned “0.5%-3%” may be, for example, 0.5%, 0.8%, 1%, 1.2%, 1.5%, 1.8%, 2%, 2.2%, 2.5%, 2.8%, 3%, etc.;

[0027] The above-mentioned “1%-10%” may be, for example, 1%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10%, etc.;

[0028] The above-mentioned “8%-15%” may be, for example, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, etc.;

[0029] The above-mentioned "30%-60%" can be, for example, 30%, 32%, 35%, 38%, 40%, 42%, 45%, 48%, 50%, 52%, 55%, 58%, 60%, etc. Other specific point values ​​within the numerical range can be selected, and they will not be elaborated here.

[0030] Preferably, the sunscreen comprises any one of diethylaminohydroxybenzoyl hexyl benzoate, bis-ethylhexyloxyphenol methoxyphenyl triazine, ethylhexyl triazone, titanium dioxide, zinc oxide, isopentyl p-methoxycinnamate, 4-benzophenone, oxybenzophenone or octyl dimethylaminobenzoate, or a combination of at least two thereof.

[0031] Preferably, the moisturizing agent includes any one or a combination of at least two of β-glucan, 1,2-pentanediol, butylene glycol, panthenol, sodium hyaluronate, glycerin, trimethylsiloxysilicate, 1,2-hexanediol or stearyl glycyrrhetinate.

[0032] Preferably, the thickener includes any one of hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer, polysorbate-60, disteardimonium hectorite, carboxymethyl cellulose or xanthan gum, or a combination of at least two thereof.

[0033] Preferably, the emulsifier includes any one or a combination of at least two of sodium di(laurylamide glutamine) lysine, polyglyceryl-2 diisostearate, sorbitan sesquioleate, C20-22 alcohol phosphate and C20-22 alcohol mixture or sucrose stearate.

[0034] Preferably, the film former includes any one of trimethylsiloxysilicate, isododecane or polyvinyl pyrrolidone / hexadecene copolymer or a combination of at least two thereof.

[0035] Preferably, the sunscreen lotion further comprises any one of an emollient, an antioxidant or a pH adjuster, or a combination of at least two of them.

[0036] Preferably, the sunscreen lotion comprises, by mass percentage, any one of 8%-15% of an emollient, 0.2%-0.8% of an antioxidant, or 0.005%-3% of a pH adjuster, or a combination of at least two thereof;

[0037] The above-mentioned “8%-15%” may be, for example, 8%, 8.5%, 9%, 9.5%, 10%, 10.5%, 11%, 11.5%, 12%, 12.5%, 13%, 13.5%, 14%, 14.5%, 15%, etc.;

[0038] The above-mentioned “0.2%-0.8%” may be, for example, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, etc.;

[0039] The above-mentioned “0.005%-3%” can be, for example, 0.005%, 0.008%, 0.01%, 0.05%, 0.08%, 0.1%, 0.2%, 0.5%, 0.8%, 1%, 1.2%, 3%, etc.

[0040] Preferably, the emollient comprises any one or a combination of at least two of triglyceride, magnesium sulfate, diisopropyl sebacate, coconut oil alcohol-caprylate / caprate, polydimethylsiloxane, squalane, shea butter, batyl alcohol or jojoba seed oil.

[0041] Preferably, the antioxidant comprises any one of p-hydroxyacetophenone, tocopheryl acetate, butylated hydroxyanisole, rosemary extract, curcumin or resveratrol, or a combination of at least two thereof.

[0042] Preferably, the pH adjuster includes any one of aminomethyl propanol, citric acid, sodium dihydrogen phosphate or disodium hydrogen phosphate, or a combination of at least two thereof.

[0043] Compared with the prior art, the present invention has the following beneficial effects:

[0044] In the present invention, four specific ingredients, namely, extract of sphingomonas fermentation product, wax powder, dextrin thickener and butyl octanol salicylate, are used in combination, which can synergistically enhance the sunscreen performance of the sunscreen agent, and improve the dispersion uniformity of the overall formula and the thixotropy of the material body after addition. The formed sunscreen product has high skin affinity and is easy to spread. After application, a protective film can be formed on the skin surface. The irregular combination of powder and dextrin crystals in the film greatly increases the optical path, reduces the contact between ultraviolet rays and the skin, improves the sunscreen performance, and reduces the use of sunscreen agents, thereby achieving a better skin feel effect. DETAILED DESCRIPTION

[0045] In order to further explain the technical means and effects adopted by the present invention, the technical solution of the present invention is further described below in conjunction with the preferred embodiments of the present invention, but the present invention is not limited to the scope of the embodiments.

[0046] The Sphingomonas fermentation product extracts mentioned below were purchased from Lubrizol under the model Kelco-Care TM Diutan Gum product; mixed wax (Carnauba wax + rice bran wax) is purchased from Lubrizol under the model Sunhancer TM Eco's product; dextrin palmitate model is RHEOPEARL KL2; dextrin palmitate / ethylhexanoate model is RHEOPEARL KL2; butyl octanol salicylate purchased from Innospec company model is SUNSOLV TM Products of BOS.

[0047] Example 1

[0048] The present embodiment provides a sunscreen synergistic composition, which is composed, by mass, of 0.5 parts of a sphingomonas fermentation product extract, 3 parts of a mixed wax (carnauba wax + rice bran wax), 0.5 parts of dextrin palmitate / ethylhexanoate, and 4 parts of butyl octanol salicylate.

[0049] Example 2

[0050] The present embodiment provides a sunscreen synergistic composition, which is composed, by mass, of 0.8 parts of a sphingomonas fermentation product extract, 0.2 parts of a mixed wax (carnauba wax + rice bran wax), 0.1 parts of dextrin palmitate and 6.9 parts of butyl octanol salicylate.

[0051] Example 3

[0052] The present embodiment provides a sunscreen synergistic composition, which is composed, by mass, of 0.05 parts of a sphingomonas fermentation product extract, 5 parts of a mixed wax (carnauba wax + rice bran wax), 1.95 parts of dextrin palmitate / ethylhexanoate and 1 part of butyl octanol salicylate.

[0053] Comparative Example 1

[0054] This comparative example provides a sunscreen synergistic composition, which differs from Example 1 only in that it does not contain the extract of the fermentation product of Aminomonas, and its reduced portion is proportionally distributed to the three components of mixed wax (carnauba wax + rice bran wax), dextrin palmitate / ethylhexanoate and butyloctanol salicylate.

[0055] Comparative Example 2

[0056] This comparative example provides a sunscreen synergistic composition, which differs from Example 1 only in that it does not contain mixed wax (carnauba wax + rice bran wax), and its reduced portion is proportionally distributed to the three components of the fermentation product extract of Aminomonas, dextrin palmitate / ethylhexanoate and butyloctanol salicylate.

[0057] Comparative Example 3

[0058] This comparative example provides a sunscreen synergistic composition, which differs from Example 1 only in that it does not contain dextrin palmitate / ethylhexanoate, and its reduced portion is proportionally distributed to the three components of Aminomonas fermentation product extract, mixed wax (carnauba wax+rice bran wax) and butyloctanol salicylate.

[0059] Comparative Example 4

[0060] This comparative example provides a sunscreen synergistic composition, which differs from Example 1 only in that it does not contain butyl octanol salicylate, and its reduced portion is proportionally distributed to the three components of the Aminomonas fermentation product extract, mixed wax (carnauba wax + rice bran wax) and dextrin palmitate / ethylhexanoate.

[0061] Comparative Example 5

[0062] This comparative example provides a sunscreen synergistic composition, which differs from Example 1 only in that it does not contain mixed wax (carnauba wax + rice bran wax), and its reduced proportion is proportionally distributed to the dextrin palmitate / ethylhexanoate component.

[0063] Comparative Example 6

[0064] This comparative example provides a sunscreen synergistic composition, which differs from Example 1 only in that it does not contain dextrin palmitate / ethylhexanoate, and its reduced amount is proportionally distributed to the mixed wax (carnauba wax+rice bran wax) component.

[0065] Application Example 1

[0066] This application example provides a sunscreen lotion, the formula of which is as follows:

[0067]

[0068]

[0069] Its preparation method is:

[0070] (1) Mix a sunscreen, an emollient, and a portion of a sunscreen enhancing composition (dextrin palmitate / ethylhexanoate and butyl octanol salicylate) and heat and stir until dissolved and transparent at 85° C., then cool to 37° C. to obtain a first mixture.

[0071] (2) The film-forming agents are mixed and stirred until they are uniform and transparent to obtain a second mixture.

[0072] (3) Add the second mixture and the emulsifier, thickener, and part of the sunscreen enhancement component (carnauba wax + rice bran wax) to the first mixture, stir and homogenize for 20 minutes to obtain a third mixture.

[0073] (4) Mix water, moisturizer, and part of the sunscreen enhancing composition (extract of Sphingomonas fermentation product) and stir until transparent to obtain a fourth mixture.

[0074] (3) The third mixture and the fourth mixture are mixed and homogenized at room temperature for 10 minutes to obtain the sunscreen lotion.

[0075] Application Example 2

[0076] This application example provides a sunscreen lotion, the formula of which differs from that of Application Example 1 only in that the sunscreen synergistic composition of Example 1 is replaced with 5% by mass of the sunscreen synergistic composition of Example 2, and the reduced amount is distributed on water, while other ingredients and contents remain unchanged. The preparation method refers to Application Example 1.

[0077] Application Example 3

[0078] This application example provides a sunscreen lotion, the formula of which differs from that of Application Example 1 only in that the sunscreen synergistic composition of Example 1 is replaced with 7.5% by mass of the sunscreen synergistic composition of Example 3, the increased amount of which is reduced by the water component, and the other ingredients and contents remain unchanged. The preparation method refers to Application Example 1.

[0079] Application Example 4

[0080] This application example provides a sunscreen lotion, the formula of which differs from that of Application Example 1 only in that the amount of the sunscreen synergistic composition is 1%, and the reduced amount is distributed on water, while other ingredients and contents remain unchanged. The preparation method refers to that of Application Example 1.

[0081] Application Example 5

[0082] This application example provides a sunscreen lotion, the formula of which differs from that of Application Example 1 only in that the amount of the sunscreen enhancement composition is 16%, and the increased amount is reduced by the water component, while the other ingredients and contents remain unchanged. The preparation method refers to that of Application Example 1.

[0083] Comparative Application Examples 1-6

[0084] This comparative application example provides six sunscreen lotions, the formulas of which differ from those of Application Example 1 only in that the sunscreen synergistic composition of Example 1 replaces the sunscreen synergistic composition of Comparative Examples 1-6 in equal amounts, and other ingredients and contents remain unchanged. The preparation method refers to that of Application Example 1.

[0085] Test Example 1

[0086] Sunscreen effect test

[0087] Test samples: sunscreen lotions prepared in Application Examples 1-5 and Comparative Application Examples 1-4.

[0088] Test method: According to the sun protection index test method (human body method) for sunscreen cosmetics specified in the "Technical Specifications for Safety of Cosmetics" (2015 edition), the sun protection effect of the product was tested, with the sun protection index (SPF value) and the long-wave ultraviolet protection index of sunscreen cosmetics (PFA value) as evaluation indicators. The test results are shown in Table 1.

[0089] Table 1

[0090]

[0091]

[0092] From the data in the table, we can see that:

[0093] (1) It can be seen from Application Examples 1 to 3 that the sunscreen synergistic composition provided by the present invention can be added to sunscreen products to reduce the amount of sunscreen agent used while ensuring that the sunscreen products have good sunscreen effects.

[0094] (2) By comparing Application Example 1 with Application Example 4, it can be seen that when the dosage of the sunscreen synergist composition used in Application Example 4 is too low, the sunscreen product prepared therefrom, even when the dosage of the sunscreen agent and other components is the same, has a sun protection index and a long-wave ultraviolet protection index worse than those of Application Example 1. It can be seen that the use of a specific amount of sunscreen synergist in the present invention effectively improves the sunscreen effect of the product.

[0095] (3) By comparing Application Example 1 with Comparative Application Examples 1-4, it can be seen that when the sunscreen enhancement compositions used in Comparative Application Examples 1-4 do not contain any of the four components of Sphingomonas fermentation product extract, wax powder, dextrin thickener and butyl octanol salicylate, the sunscreen effects of the sunscreen lotions prepared therefrom are not as good as those in Application Example 1, indicating that the above four components have a synergistic promoting effect in terms of sunscreen enhancement that is difficult for technicians in this field to predict.

[0096] Test Example 2

[0097] Skin feel test

[0098] According to the sensory analysis method in the cosmetics industry, the sunscreen lotions prepared in Examples 1-5 and Comparative Application Examples 5-6 were evaluated for skin feel. The evaluation items and standards are shown in Table 2-1, and the evaluation results are shown in Table 2-2.

[0099] Table 2-1

[0100] Test indicators Judgment criteria Spreadability 0(difficult)-9(easy) Skin-friendly 0(floating powder)-9(fitting) Heavy 0 (heavy) - 9 (thin)

[0101] Table 2-2

[0102] Spreadability Skin-friendly Heavy Total score Application Example 1 8 9 8 8.3 Application Example 2 7 8 7 7.3 Application Example 3 8 7 8 7.6 Application Example 4 7 6 6 6.3 Application Example 5 7 7 6 6.6 Comparative Application Example 5 5 4 3 4 Comparative Application Example 6 5 6 5 5.3

[0103] From the data in the table, we can see that:

[0104] (1) When the sunscreen synergistic composition composed of four components, namely, extract of Sphingomonas fermentation product, wax powder, dextrin thickener and butyl octanol salicylate, is applied to sunscreen products, the composition can achieve an enhanced skin feel at the moment of product application, and has low viscosity, good lightness, good air permeability and easy spreading, improved skin affinity, and excellent comprehensive skin feel effect.

[0105] (2) By comparing Application Example 1 with Application Examples 4-5, it can be seen that when the amount of the sunscreen synergistic composition used in Application Examples 4-5 is not within a specific range, the skin feel of the sunscreen product prepared therefrom is not as good as that of Application Example 1. It can be seen that the use of a specific amount of sunscreen synergist in the present invention effectively improves the comprehensive skin feel and use effect of the product.

[0106] (3) By comparing Application Example 1 with Comparative Application Examples 5-6, it can be seen that when the sunscreen synergistic composition used in Comparative Application Examples 5-6 does not contain wax powder or dextrin thickener, the comprehensive skin feel effect of the sunscreen lotion prepared therefrom is worse than that of Application Example 1. It can be seen that the present invention can effectively optimize the skin feel effect of the product by combining wax powder and dextrin thickener.

[0107] Test Example 3

[0108] Film forming test

[0109] The sunscreen lotion samples prepared in Application Examples 1-5 and Comparative Application Examples 5-6 were evenly applied to the skin of human arms using an applicator to test the film-forming time. The film-forming time was determined by touching the prepared film layer with a finger and recording the time when fingerprints were no longer visible on the film layer, which was the film-forming time of the lotion sample. The test results are shown in Table 3.

[0110] Table 3

[0111] Human arm skin Application Example 1 50s Application Example 2 60s Application Example 3 63s Application Example 4 71s Application Example 5 75s Comparative Application Example 5 90s Comparative Application Example 6 100s

[0112] It can be seen from the data in the table that the sunscreen lotion prepared by the present invention has a faster film-forming speed, the addition of sunscreen enhancers can accelerate the film-forming speed of the lotion, and the film-forming speed of the sample can be further improved by using a specific amount of sunscreen enhancers, and wax powder and dextrin thickeners have a certain synergistic effect in improving the film-forming effect.

[0113] Test Example 4

[0114] Safety Testing

[0115] The sunscreen lotion samples prepared in Application Examples 1-5 were subjected to patch tests to detect their potential to cause adverse reactions on human skin.

[0116] A total of 30 subjects, with a male-female ratio of 1:1, aged 20-40 years old, met the selection criteria for volunteers, took 0.05mL of sample with a syringe and placed it in the chamber of the spot test tape, and immediately attached the spot test tape with the sample to the normal skin of the left forearm from the bottom, and pressed the chambers lightly to expel the air and evenly distribute the test substance. The test site was marked for observation, and the spot test tape was removed after 24 hours. The skin reaction was observed after 30 minutes, 24 hours and 48 hours, and the results of the skin reaction were recorded and analyzed according to the CTFA guidelines. The identification standards are shown in Table 4-1, and the experimental results are shown in Table 4-2.

[0117] Table 4-1

[0118]

[0119]

[0120] Table 4-2

[0121]

[0122] The results in the table show that the sunscreen lotion product prepared by the present invention has no irritation to the skin and no positive reaction, which proves that the product has high safety, low irritation and is relatively mild.

[0123] In summary, the present invention uses four specific ingredients, namely, sphingomonas fermentation product extract, wax powder, dextrin thickener, and butyl octanol salicylate, in combination, which can synergistically enhance the sunscreen performance of the sunscreen, and the formed sunscreen product has high skin affinity and is easy to spread. After application, it can form a protective film on the skin surface, increase the light path, reduce the contact between ultraviolet rays and the skin, improve the sunscreen performance, and reduce the use of sunscreen, thereby achieving a better skin feel effect.

[0124] The applicant declares that the present invention illustrates the technical solution of the present invention through the above-mentioned embodiments, but the present invention is not limited to the above-mentioned embodiments, that is, it does not mean that the present invention must rely on the above-mentioned embodiments to be implemented. Those skilled in the art should understand that any improvement of the present invention, equivalent replacement of various raw materials of the product of the present invention, addition of auxiliary components, selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present invention.

[0125] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0126] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

Claims

1. A sunscreen synergistic composition, characterized in that: The sunscreen synergistic composition comprises a sphingomonas fermentation product extract, wax powder, a dextrin thickener, and butyl octanol salicylate; The dextrin thickener includes dextrin palmitate and / or dextrin palmitate / ethylhexanoate.

2. The sunscreen synergistic composition according to claim 1, characterized in that: The sunscreen synergistic composition comprises, by weight, 0.01-1 parts of an extract of a fermentation product of Aminomonas aeruginosa, 0.1-5 parts of wax powder, 0.1-2 parts of a dextrin thickener, and 1-10 parts of butyl octanol salicylate; Preferably, the wax of the wax powder includes any one of carnauba wax, rice bran wax, rice bran wax, candelilla wax, beeswax, biodegradable wax, microcrystalline wax or paraffin wax, or a combination of at least two thereof.

3. Use of the sunscreen synergistic composition according to claim 1 or 2 in cosmetics; The cosmetics include emulsion, lotion, cream and essence.

4. The use according to claim 3, characterized in that: Calculated by mass percentage, the amount of the sunscreen synergistic composition added to the cosmetics is 4%-10%.

5. A sunscreen lotion, characterized in that: The sunscreen lotion comprises the sunscreen synergistic composition according to claim 1 or 2, a sunscreen, a moisturizer, a thickener, an emulsifier and water.

6. The sunscreen lotion according to claim 5, characterized in that The sunscreen lotion comprises, by mass percentage, 4%-10% of the sunscreen synergistic composition according to claim 1 or 2, 8%-20% of a sunscreen agent, 5%-18% of a moisturizer, 0.5%-3% of a thickener, 1%-10% of an emulsifier, 8%-15% of a film former and 30%-60% of water.

7. The sunscreen lotion according to claim 6, characterized in that The sunscreen agent includes any one or a combination of at least two of diethylaminohydroxybenzoyl hexyl benzoate, bis-ethylhexyloxyphenol methoxyphenyl triazine, ethylhexyl triazone, titanium dioxide, zinc oxide, isopentyl p-methoxycinnamate, 4-benzophenone, oxybenzophenone or octyl dimethylaminobenzoate; Preferably, the moisturizing agent includes any one or a combination of at least two of β-glucan, 1,2-pentanediol, butylene glycol, panthenol, sodium hyaluronate, glycerin, trimethylsiloxysilicate, 1,2-hexanediol or stearyl glycyrrhetinate; Preferably, the thickener comprises any one or a combination of at least two of hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer, polysorbate-60, disteardimonium hectorite, carboxymethyl cellulose or xanthan gum; Preferably, the emulsifier includes any one or a combination of at least two of di(laurylamide glutamine) lysine sodium, polyglyceryl-2 diisostearate, sorbitan sesquioleate, C20-22 alcohol phosphate and C20-22 alcohol mixture or sucrose stearate; Preferably, the film former includes any one of trimethylsiloxysilicate, isododecane or polyvinyl pyrrolidone / hexadecene copolymer or a combination of at least two thereof.

8. The sunscreen lotion according to any one of claims 5 to 7, characterized in that: The sunscreen lotion further comprises any one of an emollient, an antioxidant or a pH regulator or a combination of at least two of them.

9. The sunscreen lotion according to claim 8, characterized in that The sunscreen lotion comprises, by mass percentage, any one of 8%-15% of an emollient, 0.2%-0.8% of an antioxidant, or 0.005%-3% of a pH regulator, or a combination of at least two of them.

10. The sunscreen lotion according to claim 8 or 9, characterized in that: The emollient comprises any one or a combination of at least two of triglyceride, magnesium sulfate, diisopropyl sebacate, coconut oil alcohol-caprylate / caprate, polydimethylsiloxane, squalane, shea butter, batyl alcohol or jojoba seed oil; Preferably, the antioxidant comprises any one or a combination of at least two of p-hydroxyacetophenone, tocopheryl acetate, butylated hydroxyanisole, rosemary extract, curcumin or resveratrol; Preferably, the pH adjuster includes any one of aminomethyl propanol, citric acid, sodium dihydrogen phosphate or disodium hydrogen phosphate, or a combination of at least two thereof.

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