A sunscreen composition and uses thereof, cosmetic

Abstract

The present application belongs to the technical field of cosmetics, and discloses a sunscreen composition, characterized in that the composition contains the following components in parts by mass: 1-4 parts of porous flower-shaped silica; 0.5-5 parts of plant extract; and 1-6 parts of vegetable fat; wherein the plant extract is a combination of ginger root extract, turmeric root extract and licorice extract; the porous flower-shaped silica, the three plant extracts of ginger root extract, turmeric root extract and licorice extract, and the vegetable fat are used simultaneously, and have the effect of obviously synergistically improving the sunscreen effect of the composition. Meanwhile, the present application also provides the use and cosmetics of the sunscreen composition.

Description

Technical Field

[0001] This invention belongs to the field of cosmetic technology and discloses a sunscreen composition, its use, and cosmetics. Background Technology

[0002] With the increasing severity of global warming and ozone depletion, the intensity of ultraviolet (UV) radiation reaching the Earth's surface has significantly increased. Among these, UVB (280-320nm) and UVA (320-400nm) are particularly harmful to human skin. UVB can directly affect the epidermis, causing redness, sunburn, and peeling. Long-term exposure can also damage skin cell DNA structure, increasing the risk of photoaging and skin cancer. UVA, on the other hand, has stronger penetrating power, reaching deep into the dermis, causing collagen loss and elastin fiber breakage, leading to sagging skin and wrinkles. It also stimulates abnormal melanocyte activity, causing pigmentation and severely impacting skin health and appearance. Against this backdrop, cosmetics with high-efficiency UV protection have become essential for consumers' daily skincare routines. The market demand for sunscreen products continues to grow, with higher requirements placed on their protective performance, user experience, and safety.

[0003] Currently, most sunscreen cosmetics on the market achieve their UV protection effect by adding sunscreen agents. Based on their mechanisms of action, they can be divided into two categories: physical sunscreens and chemical sunscreens. Physical sunscreens form a protective film on the skin surface, reflecting and scattering UV rays. They offer advantages such as high safety, strong stability, and no need for pre-application. However, traditional physical sunscreens have relatively large particle sizes, easily forming a noticeable whitening layer on the skin surface. They also feel thick and sticky, and are prone to causing caking and pilling after application, failing to meet consumers' demands for a refreshing feel and natural makeup effect. Furthermore, large-particle physical sunscreens have poor dispersibility in formulations, easily leading to sedimentation and stratification, affecting product stability and ease of use.

[0004] Chemical sunscreens absorb ultraviolet (UV) energy and convert it into heat or harmless low-energy radiation. They are characterized by high transparency and a lightweight feel, effectively avoiding the white cast problem of physical sunscreens. However, most chemical sunscreens only provide protection against a specific wavelength of UVB or UVA. Using them alone is insufficient to cover the entire spectrum of UV rays, requiring the combination of multiple chemical sunscreens to achieve broad-spectrum protection. However, different chemical sunscreens have compatibility differences, and some ingredients can interact when combined, leading to sunscreen degradation and reduced effectiveness. Furthermore, some chemical sunscreens (such as benzophenone-3) have skin irritation and sensitization properties, and long-term use may cause adverse reactions such as redness, swelling, and itching, making them particularly unsuitable for people with sensitive skin.

[0005] Therefore, the technical problem that this invention needs to solve is: how to provide a new, stable, efficient, safe and gentle sunscreen composition. Summary of the Invention

[0006] The purpose of this invention is to provide a sunscreen composition containing porous flower-shaped silica, three plant extracts (ginger root extract, turmeric root extract, and licorice extract), and plant oils, which have a significant synergistic effect in enhancing the sunscreen effect of the composition.

[0007] In addition, the present invention also provides the use of the sunscreen composition and cosmetics.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A sunscreen composition comprising, by weight parts:

[0010] 1-4 parts porous flower-shaped silica;

[0011] 0.5–5 parts plant extract;

[0012] 1 to 6 parts vegetable oil;

[0013] The plant extract is a combination of ginger root extract, turmeric root extract and licorice extract.

[0014] Preferably, the mass ratio of the ginger root extract, turmeric root extract and licorice extract is 0.1-0.8:0.2-2:0.5-3.

[0015] Preferably, the vegetable oil is one or more of jojoba seed oil, shea butter, and coconut oil.

[0016] Furthermore, this invention discloses the use of the sunscreen composition described above in the preparation of cosmetics.

[0017] Finally, the present invention also discloses a cosmetic containing 0.01 wt% to 8 wt% of the sunscreen composition as described above.

[0018] Preferably, the cosmetic product, by weight percentage, further contains 5 wt% to 30 wt% of sunscreen, 15 wt% to 45 wt% of synthetic oil, 0.1 wt% to 1 wt% of preservative, 0.5 wt% to 8 wt% of emulsifier, 0.5 wt% to 3 wt% of thickener, 1 wt% to 20 wt% of polyol, 0.01 wt% to 3 wt% of stabilizer, 0.01 wt% to 2 wt% of fragrance, and the balance being water.

[0019] Preferably, the sunscreen agent is one or more of the following: titanium dioxide, ethylhexyl methoxycinnamate, methylene bis-benzotriazolyltetramethylbutylphenol, bis-ethylhexyloxyphenol methoxyphenyl triazine, diethylaminohydroxybenzoylhexyl benzoate, ethylhexyl triazine ketone, zinc oxide, and phenylbenzimidazole sulfonic acid.

[0020] The synthetic oils mentioned are one or more combinations of the following: butanediol dioctanoate / didecanoate, dioctyl carbonate, dibutyl adipate, polydimethylsiloxane, C12-15 alcohol benzoate, isochoric hexadecyl, pentaerythritol tetra(ethylhexanoate), diisopropyl sebacate, isononyl isononanoate, neopentyl glycol diheptanoate, cyclopentamethoxydimethylsiloxane, isododecane, and octanoic acid / decanoic acid triglyceride;

[0021] The preservative is one or more of phenoxyethanol, iodopropynyl butylcarbamate, octanoyl hydroxamic acid, and p-hydroxyacetophenone;

[0022] The emulsifier is one or more combinations of cetyl PEG / PPG-10 / 1 polydimethylsiloxane, lauryl PEG-10 tris(trimethoxy)silyl ethyl polydimethylsiloxane, PEG-10 polydimethylsiloxane, lauryl PEG-9 polydimethylsiloxane ethyl polydimethylsiloxane, polyglycerol-3 polydimethylsiloxyethyl polydimethylsiloxane, arachidonic acid glucoside, PEG-100 stearate, glyceryl stearate, PEG-9 polydimethylsiloxane ethyl polydimethylsiloxane, and polydimethylsiloxane PEG-10 / 15 crosslinked polymer;

[0023] The thickener is one or more of the following: distearate dimethylammonium lithium montmorillonite, acrylate / vinyl isodecanoate crosspolymer, carbomer, hydroxyethyl acrylate / sodium acryloyl dimethyl taurate copolymer, and dextrin palmitate.

[0024] The polyol is one or more of glycerol, diglycerol, butylene glycol, propylene glycol, pentanediol, and hexanediol;

[0025] The stabilizer is one or a combination of disodium EDTA, sodium chloride, and magnesium sulfate;

[0026] Preferably, the dosage form of the cosmetic is one of the following: lotion, cream, spray, gel, stick, or essential oil.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] The sunscreen composition prepared by this invention contains porous flower-shaped silica, three plant extracts (ginger root extract, turmeric root extract, and licorice extract), and plant oils. The simultaneous use of these substances has a significant synergistic effect in enhancing the sunscreen effect of the composition. Attached Figure Description

[0029] Figure 1 The image shows the results of sunscreen lotion 1 being used on the back after sun exposure;

[0030] Figure 2 The image shows the results of sun exposure on my back after using sunscreen lotion 2.

[0031] Figure 3 The image shows the results of sunscreen lotion 3 being used on the back after sun exposure;

[0032] Figure 4 The image shows the results of sunscreen lotion 4 being used on the back after sun exposure;

[0033] Figure 5 The image shows the results of sunscreen lotion 5 on my back after sun exposure;

[0034] Figure 6 The image shows the results of sunscreen lotion #6 being used on the back after sun exposure;

[0035] Figure 7 The image shows the results of sunscreen lotion #7 being used on the back after sun exposure. Detailed Implementation

[0036] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0037] Product Information:

[0038] Porous flower-shaped silica: purchased from Chuangyuan Mesoporous New Materials Technology (Dezhou) Co., Ltd., grade FL001;

[0039] Ginger root extract: purchased from COSEEDBIOPHARM CO.,LTD, brand name CS-Ginger Ext;

[0040] Turmeric root extract: purchased from Ronghai Biotechnology, brand name Turmericgel;

[0041] Licorice extract: purchased from Qinghai Lake Pharmaceutical Co., Ltd. of Qinghai Province, brand name dipotassium glycyrrhizate-73.

[0042] It should be noted that the technical solution of this application can be achieved by purchasing other commercially available raw materials, and is not limited to the aforementioned raw material suppliers.

[0043] Part One

[0044] This section primarily explores the relationships between different types of silica, as well as porous flower-shaped silica, plant extracts, and plant oils. The formulations of the compositions in each example and comparative example are shown in Table 1.

[0045] Table 1. Combination Formula (parts by weight)

[0046] silica ginger root extract Turmeric root extract Licorice extract Vegetable oils Example 1 3 1 1 1 3 Example 2 1 0.19 3.85 0.96 6 Example 3 4 0.1 0.025 0.375 1 Comparative Example 1 3 0 0 0 0 Comparative Example 2 3 0 0 0 0 Comparative Example 3 3 0 0 0 0 Comparative Example 4 0 1 1 1 3

[0047] The specific components of silica and vegetable oils are shown in Table 2.

[0048] Table 2. Specific Composition of Silica and Vegetable Oils

[0049] silica Vegetable oils Example 1 Porous flower-shaped silica Jojoba seed oil Example 2 Porous flower-shaped silica Shea butter Example 3 Porous flower-shaped silica Coconut oil Comparative Example 1 Non-porous silica / Comparative Example 2 Porous spherical silica / Comparative Example 3 Porous flower-shaped silica / Comparative Example 4 / Jojoba seed oil

[0050] The sunscreen compositions of Examples 1-3 and Comparative Examples 1-4 were prepared into sunscreen lotions according to the formulation table in Table 3. The specific steps are as follows:

[0051] Step 1: Add the plant oil from the sunscreen composition to phase A, then heat and disperse phase A evenly. Next, add the porous flower-shaped silica from the sunscreen composition and each component of phase B to phase A in sequence, and stir until homogeneous.

[0052] Step 2: Heat and dissolve phase C until homogeneous, then add the plant extracts and components of phase D from the sunscreen composition to phase C in sequence, and stir until homogeneous;

[0053] Step 3: While stirring, slowly add phase CD to phase AB and stir until homogeneous;

[0054] Step 4: While stirring, add each component of phase E to phase CD in sequence, and stir until homogeneous to obtain the final product.

[0055] Sunscreen lotions 1 to 7 were obtained, with sunscreen lotions 1 to 3 corresponding to the sunscreen compositions of Examples 1 to 3, and sunscreen lotions 4 to 7 corresponding to the sunscreen compositions of Examples 1 to 4.

[0056] Table 3. Sunscreen Lotion Formula Table

[0057]

[0058]

[0059] Sunscreen Lotion 8

[0060] It is basically the same as Sunscreen Lotion 6, except that the amount of sunscreen composition added is 6wt%.

[0061] Sunscreen Lotion 9

[0062] It is basically the same as Sunscreen Lotion 6, except that the amount of sunscreen composition added is 8wt%.

[0063] Sunscreen Lotion 10

[0064] It is basically the same as Sunscreen Lotion 7, except that the amount of sunscreen composition added is 6wt%.

[0065] Sunscreen Lotion 11

[0066] It is basically the same as Sunscreen Lotion 7, except that the amount of sunscreen composition added is 8wt%.

[0067] Performance testing

[0068] Stimulation test

[0069] I. Test Instructions

[0070] Using qualified patch testing equipment, the test substance (sunscreen lotion 1) was placed in the patch testing device at a dosage of approximately 0.020 g (solid or semi-solid) or 0.020 mL (liquid). The device was then applied to the subject with hypoallergenic adhesive tape. The patch was removed after 24 hours, and the skin reaction was observed at 0.5 hours, 24 hours, and 48 hours after removal.

[0071] The skin adverse reaction grading criteria in Table 4 were used for scoring.

[0072] Table 4. Grading Standards for Adverse Skin Reactions

[0073]

[0074] II. Experimental Results

[0075] The results are shown in Table 5.

[0076] Table 5 Scoring Sheet

[0077]

[0078] As can be seen from Table 5, the sunscreen lotion of Example 1 did not cause any allergic reactions in the subjects.

[0079] Sun protection factor test

[0080] I. Test Instructions

[0081] 1. Testing was conducted according to the specific requirements of the "Cosmetic Safety Technical Specifications" (2015 edition). Subjects were placed in a prone position, and their backs were irradiated. The minimum erythema dose (MED) of the subject to ultraviolet radiation was predicted 24 hours prior to testing, and the ultraviolet radiation dose was adjusted based on the prediction results for testing the analyte. On the day of testing, a spot no less than 30cm long was first selected on the subject's back. 2 In normal skin areas, at (2.00±0.05) mg / cm² 2The test substance (sunscreen lotion 1-11) and control substance (standard P2) were evenly applied to the above-mentioned area and left for 30 minutes. Then, the irradiation dose was selected according to the specifications, and irradiation was carried out under three conditions: ① no test substance applied to the subject's skin; ② control substance applied; ③ test substance applied. The experimental results were observed after 20 hours, and the MED values ​​were recorded under each of the three conditions. The test results of sunscreen lotions 1-7 are shown in the figure below. Figures 1-7 As shown.

[0082] 2. SPF value calculation method: The SPF value of the analyte or control for protecting a single subject is expressed by formula I:

[0083] Formula I:

[0084] Individual SPF values ​​must be accurate to one decimal place. The arithmetic mean of the SPF values ​​of all subjects protected by the test substance is calculated, and the integer part is taken as the SPF value of the sample being tested. The results are shown in Table 6.

[0085] Table 6 SPF Value Data Table

[0086] sample SPF value Sunscreen Lotion 1 48.1 Sunscreen Lotion 2 47.8 Sunscreen Lotion 3 48.5 Sunscreen Lotion 4 33.9 Sunscreen Lotion 5 39.1 Sunscreen Lotion 6 43.5 Sunscreen Lotion 7 42.5 Sunscreen Lotion 8 44.0 Sunscreen Lotion 9 44.0 Sunscreen Lotion 10 42.8 Sunscreen Lotion 11 42.8

[0087] The following conclusions can be drawn from the analysis of Table 6:

[0088] 1. Data from sunscreen lotions 1 to 3 show that sunscreen lotions 1 to 3 containing the sunscreen composition of the present invention all have a high SPF value of around 48, indicating that they have a good sun protection effect.

[0089] 2. As can be seen from the data of sunscreen lotion 4-6, the porous flower-shaped silica used in this invention has a better sun protection effect compared with non-porous silica and porous spherical silica.

[0090] 3. Data from sunscreen lotions 6, 8, and 9 show that when the amount of sunscreen composition added increases to 6 wt%, the SPF increases from 43.5 to 44.0. When it is further increased to 8 wt%, the SPF remains at 44.0. This indicates that when the sunscreen composition uses porous flower-shaped silica alone, the SPF value has an upper limit, and the sun protection effect is also limited.

[0091] The data from sunscreen lotion 7, sunscreen lotion 10, and sunscreen lotion 11 also illustrate this conclusion: when sunscreen compositions use only plant extracts and plant oils, even with a significant increase in their amount, the SPF value only increases from 42.5 to 42.8, which also has an upper limit.

[0092] 4. Data from sunscreens 1, 6, and 7 shows that when porous flower-shaped silica is combined with plant extracts and oils, its SPF can exceed the upper limit, increasing from around 43 to 48.1. This indicates a synergistic effect in enhancing sun protection. The possible reasons for this phenomenon are:

[0093] Porous flower-shaped silica, through its stable formulation and uniform film formation, maintains the integrity of the protective film. Porous flower-shaped silica exhibits Mie and Rayleigh scattering, significantly improving the interaction efficiency between ultraviolet light and ultraviolet absorbers. Ultraviolet radiation promotes the release of inflammatory factors in dermal cells, while plant extracts can absorb and filter ultraviolet rays, reducing skin's ultraviolet exposure and thus reducing ultraviolet-induced erythema, providing a soothing and calming effect on the skin. Plant oils are rich in natural vitamin E, which can combat free radicals, reduce inflammation, and enhance barrier repair function. Simultaneously, plant oils can better fix sunscreen agents to the epidermal layer, improving the uniformity of the sunscreen film and thus enhancing the product's sun protection ability.

[0094] Part Two

[0095] This section primarily explores the relationship between three plant extracts.

[0096] The composition of the sunscreen compositions in Comparative Examples 5 to 10 is shown in Table 7.

[0097] Table 7. Composition Formulation (parts by weight)

[0098]

[0099]

[0100] The sunscreen compositions of Comparative Examples 5-7 were formulated into sunscreen lotions according to the formulation table in Table 3, with the specific steps being the same as in Part 1, resulting in sunscreen lotions 12-17; the SPF values ​​were tested according to the test methods in Part 1, and the results are shown in Table 8.

[0101] Table 8 SPF Value Data Table

[0102] sample SPF value Sunscreen Lotion 12 43.7 Sunscreen Lotion 13 40.1 Sunscreen Lotion 14 41.2 Sunscreen Lotion 15 42.6 Sunscreen Lotion 16 44.0 Sunscreen Lotion 17 40.0

[0103] As can be seen from the results in Table 8, when only one or two plant extracts are used, the SPF cannot exceed the upper limit. Moreover, when two extracts are used in combination, the SPF may even decrease. This phenomenon may be due to antagonistic effects between the plant extracts. Only when three plant extracts are used in combination can the upper limit of the SPF value be exceeded. This indicates that the three plant extracts must be used at the same time to have a synergistic effect in increasing the sun protection effect of the combination.

[0104] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A sunscreen composition characterized in that, The composition comprises the following components by mass fraction: 1-4 parts of porous pattern silica; 0.5-5 parts of plant extract; 1-6 parts of vegetable fat; The plant extract is a combination of ginger root extract, turmeric root extract and licorice root extract; The mass ratio of the ginger root extract, turmeric root extract and licorice root extract is 0.1-0.8:0.2-2:0.5-3; The vegetable fat is a combination of one or more of jojoba seed oil, shea butter and coconut oil.

2. Use of the sunscreen composition of claim 1 to prepare a cosmetic product.

3. A cosmetic product, characterized by, The cosmetic product contains 0.01wt%-8wt% of the sunscreen composition of claim 1.

4. The cosmetic product according to claim 3, characterized in that, The cosmetic product further contains, by mass percentage, 5wt%-30wt% of a sunscreen agent, 15wt%-45wt% of a synthetic fat, 0.1wt%-1wt% of a preservative, 0.5wt%-8wt% of an emulsifier, 0.5wt%-3wt% of a thickening agent, 1wt%-20wt% of a polyol, 0.01wt%-3wt% of a stabilizer, 0.01wt%-2wt% of a fragrance, and the balance of water.

5. The cosmetic product according to claim 4, characterized in that, The sunscreen agent is a combination of one or more of titanium dioxide, ethylhexyl methoxy cinnamate, methylene bis-benzotriazolyl tetramethylbutylphenol, bis-ethylhexyl oxyphenol methoxyphenyl triazine, oxybenzone, ethylhexyl triazone, zinc oxide, and phenylbenzimidazole sulfonic acid; The synthetic fat is a combination of one or more of butylene glycol dicaprylate / dicaprate, dicaprylyl carbonate, dibutyl adipate, dimethicone, C12-15 alkyl benzoate, isohexyldecyl 4.5-ethylhexyldiphenyl 3-hydroxy-1, 3, 5-triazine, diisopropyl sebacate, isononyl isononanoate, neopentyl glycol diheptanoate, cyclopentasiloxane, isododecane, caprylic / capric triglyceride; The preservative is a combination of one or more of phenoxyethanol, iodopropynyl butylcarbamate, caprylyl glycol, and p-methoxyacetophenone; The emulsifier is a combination of one or more of cetyl PEG / PPG-10 / 1 dimethicone, lauryl PEG-10 tri (trimethylsiloxy) siloxyethyl dimethicone, PEG-10 dimethicone, lauryl PEG-9 polydimethylsiloxyethyl dimethicone, polyglyceryl-3 polydimethylsiloxyethyl dimethicone, arachidyl glucoside, PEG-100 stearate, glyceryl stearate, PEG-9 polydimethylsiloxyethyl dimethicone, dimethicone PEG-10 / 15 crosspolymer; The thickening agent is a combination of one or more of disteardimonium hectorite, acrylates / decyl vinyl crotonate crosspolymer, carbomer, hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer, and dextrin palmitate; The polyol is a combination of one or more of glycerin, diglycerin, butylene glycol, propylene glycol, pentylene glycol, and hexylene glycol; The stabilizer is a combination of one or more of disodium EDTA, sodium chloride, and magnesium sulfate.

6. The cosmetic product according to claim 4, characterized in that, The cosmetic product is in one of the following forms: lotion, cream, spray, gel, stick, or essential oil.

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