Skin care composition with blue light protection effect and application thereof

By combining tetrahydromethylpyrimidine carboxylic acid, troxerutin, red ginger extract, and cocoa seed extract, the problem of low shielding effect and antioxidant efficiency of existing blue light protection cosmetics is solved. This achieves full-chain interception of blue light damage, significantly improves the skin's antioxidant and anti-inflammatory effects, and slows down skin aging and pigmentation.

CN121287540AActive Publication Date: 2026-01-09DOCTOR PLANT GUANGDONG BIOTECHNOLOGY CO LTD
View PDF 5 Cites 0 Cited by

Patent Information

Application Number
CN202511853632.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-10
Publication Date
2026-01-09
Estimated Expiration
2045-12-10

AI Technical Summary

Technical Problem

Existing blue light protection cosmetic technologies suffer from limited physical shielding effects and low protection efficiency and poor timeliness of single antioxidant ingredients, making it difficult to fully cover the visible light spectrum and effectively resist complex oxidative damage caused by blue light.

Method used

The combination of tetrahydromethylpyrimidine carboxylic acid, troxerutin, ginger extract and cocoa seed extract, through multi-target synergistic action, stabilizes cell structure, scavenges reactive oxygen species, protects cell membranes, downregulates matrix metalloproteinase activity, reduces collagen degradation, and enhances skin barrier function.

Benefits of technology

It achieves full-link interception of blue light, significantly reduces the generation and spread of reactive oxygen species, protects skin cell structure, significantly enhances the skin's antioxidant and anti-inflammatory effects, and slows down skin aging and pigmentation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure SMS_1
    Figure SMS_1
Patent Text Reader

Abstract

The invention relates to the technical field of cosmetics, in particular to a skin care composition with a blue light protection effect and application thereof.The skin care composition is prepared from tetrahydromethylpyrimidine carboxylic acid, troxerutin, a zingiber zingiberensis extract and a cocoa seed extract.The composition obtained by compounding the raw materials can reduce generation of ROS triggered by light damage, and the skin care effect is good. The content of melanin and haematochrome in the skin under the irradiation of blue light is reduced, and the composition has a remarkable blue light protection effect and is mild and non-irritant.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of cosmetic technology, specifically to a skincare composition with blue light protection function and its application. Background Technology

[0002] With the widespread use of electronic devices and artificial light sources, blue light radiation with wavelengths between 400-500 nm has become one of the main non-ionizing radiation sources in modern society. Studies have shown that blue light radiation can penetrate into the dermis layer of the skin, triggering a series of skin damage reactions through photo-oxidation. Its mechanism of action is mainly manifested as follows: after blue light energy is absorbed by skin cells, it leads to dysfunction of the mitochondrial electron transport chain, inducing excessive generation of reactive oxygen species (ROS); excessive ROS attacks cell membrane lipids, proteins, and DNA, triggering a chain of damage reactions such as lipid peroxidation, protein carbonylation, and DNA strand breaks; long-term accumulated oxidative stress further activates matrix metalloproteinases (MMPs), accelerating the degradation of collagen and elastin fibers, leading to photoaging, pigmentation, and impaired barrier function of the skin.

[0003] While cosmetic technologies for UV protection are relatively mature, research on blue light protection is still in its early stages. Current technologies primarily achieve blue light protection through physical shielding or the addition of a single antioxidant, which faces several technical bottlenecks: firstly, relying solely on physical blocking is insufficient to comprehensively cover the visible light spectrum and affects the product's feel; secondly, a single antioxidant is inadequate to address the complex oxidative damage network caused by blue light, resulting in low protection efficiency and poor timeliness. Therefore, developing blue light protection compositions with multi-target synergistic effects has become a pressing technical challenge in the cosmetics industry. Summary of the Invention

[0004] To achieve the above objectives and overcome the shortcomings of the prior art, the present invention provides a skin care composition with blue light protection function and its application.

[0005] In a first aspect, the present invention provides a skin care composition with blue light protection function, the skin care composition comprising the following raw materials in parts by weight: Tetrahydromethylpyrimidine carboxylic acid: 0.5-4 parts; Troxerutin: 0.5-4 parts; Red ginger extract: 0.1-0.5 parts; Cocoa seed extract: 0.1-0.5 parts.

[0006] in: Tetrahydromethylpyrimidine carboxylic acid can prevent blue light-induced protein denaturation and maintain the integrity of the skin's physical barrier by binding to proteins. Furthermore, it can induce the expression of heat shock proteins, helping damaged cells recover, enhancing cellular tolerance to photodamage, and reducing ROS production.

[0007] As a flavonoid glycoside derivative, troxerutin can provide hydrogen atoms, scavenge ROS, protect cell membrane lipids, stabilize vascular endothelial cell membranes, and reduce microcirculatory disturbances caused by blue light.

[0008] Red ginger extract is rich in active substances such as gingerol, polysaccharides, and flavonoids. Among them, gingerol can enhance the expression of antioxidant enzymes and build up cellular antioxidant reserves in advance; polysaccharides can promote the synthesis of ceramides and strengthen the skin barrier; and flavonoids can synergistically remove ROS and reduce epidermal cell apoptosis caused by blue light.

[0009] Cocoa seed extract is rich in proanthocyanidins and flavonoids, with a focus on "antioxidant and anti-inflammatory" properties. Blue light exposure exacerbates oxidative damage and inflammatory responses in the skin. The antioxidant activity of cocoa seeds can reduce the accumulation of free radicals, thereby helping to resist indirect damage from blue light. At the same time, cocoa seed extract can also downregulate the activity of matrix metalloproteinases (MMPs), reduce the breakdown of type I collagen caused by blue light, and promote the proliferation of fibroblasts, maintaining the structural support of the dermis.

[0010] This invention has found that the combined use of the above-mentioned raw materials has a synergistic effect, resulting in excellent blue light protection.

[0011] Preferably, the skincare composition comprises the following ingredients in parts by weight: Tetrahydromethylpyrimidine carboxylic acid: 2 parts; Troxerutin: 3 parts; Red ginger extract: 0.4 parts; Cocoa seed extract: 0.3 parts.

[0012] Secondly, the present invention provides the use of the skin care composition described in the first aspect in the preparation of cosmetics with blue light protection function.

[0013] Preferably, the cosmetic with blue light protection function is any one of face cream, spray, serum, or mask.

[0014] Thirdly, the present invention provides an essence with blue light protection function, wherein the essence contains 1-10 wt% of the skin care composition with blue light protection function described in the first aspect.

[0015] Preferably, the essence with blue light protection function further includes moisturizers, preservatives, thickeners, and deionized water.

[0016] More preferably, the moisturizer includes at least one of sodium hyaluronate, glycerin, butylene glycol, panthenol, and allantoin.

[0017] More preferably, the preservative includes at least one of phenoxyethanol, sorbic acid, potassium sorbate, and p-hydroxyacetophenone.

[0018] More preferably, the thickener includes at least one of carrageenan, xanthan gum, carrageenan, and carbomer.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: The core pathway of blue light damage is "ROS burst → lipid peroxidation → protein / DNA damage". The four components provided in this invention can interrupt the blue light damage chain through layered interception: Tetrahydromethylpyrimidine carboxylic acid stabilizes structural proteins, reducing ROS generation triggered by photodamage; cocoa seed extract and red ginger extract promote the secretion of antioxidant enzymes through their abundant active substances, clearing existing ROS; troxerutin and cocoa seed extract protect cell membrane lipids, downregulate matrix metalloproteinase (MMP) activity, and promote fibroblast proliferation, preventing further expansion of ROS-induced chain damage. These four substances work synergistically from "prevention of generation → rapid clearance → damage repair," weakening blue light damage across the entire chain. Detailed Implementation

[0020] To better understand the present invention, the present invention will be further described below with reference to specific embodiments. The terms "composition" and "essence" used are for describing specific implementation schemes and do not constitute a limitation on the scope of protection of the present invention.

[0021] Unless otherwise specified, experimental methods in the following examples are generally performed under standard conditions or as recommended by the manufacturer. Unless otherwise stated, all measurements are by percentage and parts by mass.

[0022] Some of the raw materials and their sources are as follows: Tetrahydromethylpyrimidine carboxylic acid: purchased from Guangzhou Jinmailong Biotechnology Co., Ltd.; trade name: Ectoin.

[0023] Troxerutin: Guangzhou Huilang Biotechnology Co., Ltd.

[0024] Red Ginger Extract: Guangzhou Runpei Chemical Co., Ltd.

[0025] Cocoa seed extract: purchased from Ashland LLC; trade name: blumilight™ biofunctional.

[0026] All other raw materials and reagents are commercially available.

[0027] The raw materials, their mass fractions, and preparation method of the skincare composition with blue light protection effect are as follows: Composition 1 Composed of the following raw materials by weight: Tetrahydromethylpyrimidine carboxylic acid: 2 parts; Troxerutin: 3 parts; Red ginger extract: 0.4 parts; Cocoa seed extract: 0.3 parts; Preparation method: Mix tetrahydromethylpyrimidine carboxylic acid, troxerutin, red ginger extract, and cocoa seed extract thoroughly, seal, and store away from light.

[0028] Composition 2 Composed of the following raw materials by weight: Tetrahydromethylpyrimidine carboxylic acid: 0.5 parts; Troxerutin: 0.5 parts; Red ginger extract: 0.1 part; Cocoa seed extract: 0.1 parts; The preparation method is the same as that of composition 1.

[0029] Composition 3 Composed of the following raw materials by weight: Tetrahydromethylpyrimidine carboxylic acid: 4 parts; Troxerutin: 4 parts; Red ginger extract: 0.5 parts; Cocoa seed extract: 0.5 parts; The preparation method is the same as that of composition 1.

[0030] Composition ① Unlike composition 1, tetrahydromethylpyrimidine carboxylic acid is missing. The missing mass fraction is made up by troxerutin, red ginger extract and cocoa seed extract in a mass ratio of 3:0.4:0.3. The other raw materials and mass fractions are the same as those in composition 1. Preparation method: Mix troxerutin, red ginger extract and cocoa seed extract evenly, seal and store in the dark.

[0031] Composition ② Unlike composition 1, this composition lacks troxerutin. The missing mass fraction is made up by tetrahydromethylpyrimidine carboxylic acid, red ginger extract, and cocoa seed extract in a mass ratio of 2:0.4:0.3. The remaining raw materials and mass fractions are the same as those in composition 1. Preparation method: Mix tetrahydromethylpyrimidine carboxylic acid, red ginger extract, and cocoa seed extract evenly, seal, and store in the dark.

[0032] Composition ③ Unlike Composition 1, it lacks red ginger extract. The missing mass is made up by tetrahydromethylpyrimidine carboxylic acid, troxerutin, and cocoa seed extract in a mass ratio of 2:3:0.3. The remaining raw materials and mass are the same as those in Composition 1. Preparation method: Mix tetrahydromethylpyrimidine carboxylic acid, troxerutin and cocoa seed extract evenly, seal and store in the dark.

[0033] Composition ④ Unlike Composition 1, it lacks cocoa seed extract. The missing mass fraction is made up by tetrahydromethylpyrimidine carboxylic acid, troxerutin, and red ginger extract in a mass ratio of 2:3:0.4. The remaining raw materials and mass fractions are the same as those in Composition 1. Preparation method: Mix tetrahydromethylpyrimidine carboxylic acid, troxerutin, and red ginger extract evenly, seal, and store in the dark.

[0034] Composition ⑤ Composed of the following raw materials by weight: Tetrahydromethylpyrimidine carboxylic acid: 0.4 parts; Troxerutin: 0.3 parts; Red ginger extract: 2 parts; Cocoa seed extract: 3 parts; The preparation method is the same as that of composition 1.

[0035] The components and their percentage by weight of the serum with blue light protection are as follows: Serum 1 Composed of the following components by mass percentage: Composition 1: 5wt% Moisturizer: 3wt% Preservative: 0.1 wt%; Thickener: 0.2 wt%; Deionized water to 100 wt%; The humectant is glycerin; the preservative is phenoxyethanol; and the thickener is carrageenan. The preparation method of serum 1 includes the following steps: A1: Mix the moisturizer, the composition, and 1 / 2 volume of deionized water until homogeneous to obtain mixture A; A2: Mix the thickener with 1 / 4 of the amount of deionized water until homogeneous to obtain mixture B; A3: Mix mixture A, mixture B, preservative, and remaining deionized water evenly to obtain the essence.

[0036] Serum 2 Composed of the following components by mass percentage: Composition 1: 1 wt% Moisturizer: 3wt% Preservative: 0.1 wt%; Thickener: 0.2 wt%; Deionized water to 100 wt%; The humectant is glycerin; the preservative is phenoxyethanol; and the thickener is carrageenan. The preparation method is the same as that of essence 1.

[0037] Serum 3 Composed of the following components by mass percentage: Composition 1: 10 wt% Moisturizer: 3wt% Preservative: 0.1 wt%; Thickener: 0.2 wt%; Deionized water to 100 wt%; The humectant is glycerin; the preservative is phenoxyethanol; and the thickener is carrageenan.

[0038] The preparation method is the same as that of essence 1.

[0039] Serum 4 Composed of the following components by mass percentage: Composition 2: 5wt% Moisturizer: 3wt% Preservative: 0.1 wt%; Thickener: 0.2 wt%; Deionized water to 100 wt%; The humectant is glycerin; the preservative is phenoxyethanol; and the thickener is carrageenan.

[0040] The preparation method is the same as that of essence 1.

[0041] Serum 5 Composed of the following components by mass percentage: Composition 3: 5wt% Moisturizer: 3wt% Preservative: 0.1 wt%; Thickener: 0.2 wt%; Deionized water to 100 wt%; The humectant is glycerin; the preservative is phenoxyethanol; and the thickener is carrageenan.

[0042] The preparation method is the same as that of essence 1.

[0043] Serum ① Unlike serum 1, composition ① is used to replace composition 1 by the same mass, while the remaining components and their mass percentages, as well as the preparation method and process parameters of the serum, are the same as those of serum 1.

[0044] Serum ② Unlike serum 1, composition ② is used to replace composition 1 by the same mass, while the remaining components and their mass percentages, as well as the preparation method and process parameters of the serum, are the same as those of serum 1.

[0045] Serum ③ Unlike serum 1, composition 3 is used to replace composition 1 by the same mass, while the remaining components and their mass percentages, as well as the preparation method and process parameters of the serum, are the same as those of serum 1.

[0046] Essence ④ Unlike serum 1, composition ④ is used to replace composition 1 by the same mass, while the remaining components and their mass percentages, as well as the preparation method and process parameters of the serum, are the same as those of serum 1.

[0047] Essence ⑤ Unlike serum 1, composition ⑤ is used to replace composition 1 by the same mass, while the remaining components and their mass percentages, as well as the preparation method and process parameters of the serum, are the same as those of serum 1.

[0048] Blank Essence Composed of the following components by mass percentage: Moisturizer: 3wt% Preservative: 0.1 wt%; Thickener: 0.2 wt%; Deionized water to 100 wt%; The humectant is glycerin; the preservative is phenoxyethanol; and the thickener is carrageenan. The preparation method of blank serum includes the following steps: A1: Mix the moisturizer with 1 / 2 volume of deionized water until homogeneous to obtain mixture A; A2: Mix the thickener with 1 / 4 of the amount of deionized water until homogeneous to obtain mixture B; A3: Mix mixture A, mixture B, preservative, and remaining deionized water evenly to obtain the essence.

[0049] Blue light protection performance testing: Test samples: Compositions 1-3, Compositions ①-⑤.

[0050] Test principle: When the skin is exposed to blue light, it will produce reactive oxygen species (ROS). When the production of ROS exceeds the skin’s own clearance capacity, it will induce oxidative stress damage. Oxidative stress damage will further activate the inflammatory response, causing the release of various inflammatory factors such as PGE2, thereby inducing clinical phenomena such as skin redness.

[0051] Main cells and reagents: Cells: Normal human epidermal keratinocytes (NHEK, Beina Biotechnology, No.: BNCC340593); Reagents: EMEM complete medium (Beina Biotechnology, No.: BNCC338137), phosphate-buffered saline (PBS) (Beina Biotechnology, No.: BNCC341451), MTT (Beyotime, No.: C00095), DMSO (Solepro, No.: D8371), ROS kit (Beyotime, No.: S0034S), human prostaglandin E2 (PGE2) kit (Shanghai ELISA, No.: ml024761), and other reagents were commercially available.

[0052] Test method: 1) Cell seeding: at a rate of 1.8 × 10⁻⁶ 5 Cells were seeded at a density of cells / well into 6-well plates and incubated overnight in an incubator (37°C, 5% CO2).

[0053] 2) Experimental grouping: The experiment was set up with blank control group (BC), negative control group (NC) and sample group, with 3 replicate wells in each group.

[0054] 3) Solution preparation: The test samples were prepared into a 1wt% working solution using EMEM complete culture medium.

[0055] 4) Drug administration: When the cell deposition rate in the 6-well plate reaches 40%-60%, administer the drug. Add 2 mL of EMEM complete medium to each well of the blank control group and negative control group; add 2 mL of sample group working solution to each well of the sample group; after drug administration, place the 6-well plate in an incubator (37℃, 5% CO2) for culture.

[0056] Reactive oxygen species (ROS) detection 1) Loading reactive oxygen species detection probes: After cells are cultured for 24 hours after drug administration, the cells are washed with PBS, and the loading method of reactive oxygen species detection probes is performed according to the kit instructions.

[0057] 2) Blue light irradiation: The negative control group and the sample group loaded with reactive oxygen species detection probes were irradiated with 440nm blue light for 10 minutes. At the same time, the blank control group was placed in the same environment but was not irradiated with blue light. After irradiation, fresh EMEM complete medium was replaced and the 6-well plates were placed in an incubator (37℃, 5% CO2) for 30 minutes.

[0058] 3) Detection: After incubating cells for 30 min, the supernatant was discarded, and the cells were digested with trypsin and collected. The cells were washed once with PBS, and then resuspended in 500 μL of PBS for analysis. The resuspended cells of the sample groups were analyzed using flow cytometry, and the fluorescence signal intensity (MFI) of the FITC channel for each sample was recorded.

[0059] ROS inhibition rate of each sample group = (MFI value of negative control group - MFI value of sample group) / MFI value of negative control group × 100% PGE2 testing Collect cell culture supernatant and perform the detection operation strictly in accordance with the PGE2 kit instructions to calculate the PGE2 content of the sample group.

[0060] PGE2 inhibition rate of each sample group = (PGE2 content in negative control group - PGE2 content in sample group) / PGE2 content in negative control group × 100% The test results are shown in Table 1 below.

[0061] Table 1. Test results of the blue light protection efficacy of the composition. Group ROS inhibition rate / % <![CDATA[PEG2 inhibition rate / %]]> Composition 1 60.7 52.4 Composition 2 58.1 50.1 Composition 3 58.6 51.3 Composition ① 25.3 27.6 Composition ② 39.6 34.5 Composition ③ 35.2 30.7 Composition ④ 34.3 32.4 Composition ⑤ 40.2 43.2 As shown in Table 1, compositions 1-3 and ①-⑤ can effectively inhibit the release of ROS and PEG2 from NHEK cells, indicating that the compositions provided by this invention have significant blue light protection efficacy. Comparing the results of composition 1 with those of compositions ①-④, it can be seen that tetrahydromethylpyrimidine carboxylic acid, troxerutin, red ginger extract, and cocoa seed extract in the composition have a certain synergistic effect, and their combined use can significantly enhance the blue light protection efficacy of the combination. Comparing the results of compositions 1-3 with those of composition ⑤, it can be seen that the ratio of raw materials in the composition affects the blue light protection efficacy of the composition. When the ratio of each raw material falls within the range defined by this invention, the resulting composition has better blue light protection efficacy.

[0062] Security test This invention experimentally verifies the biocompatibility of serums 1-5, serums ①-⑤, and a blank serum.

[0063] The irritation of cosmetics was evaluated using the 2015 Cosmetic Safety Technical Specifications as a reference standard. The test method was a skin patch test. The test was conducted on subjects aged 16-65 years who were randomly distributed. The subjects were randomly divided into groups, with each group corresponding to a different serum and 30 subjects in each group.

[0064] Test method: Place the test substance into a patch applicator at a dosage of 0.020-0.025 g. Cover the patch applicator containing the test substance onto the back or flexor side of the forearm of the subject with non-irritating adhesive tape. Gently press with the palm of your hand to ensure even adhesion to the skin surface. Leave on for 24 hours. Remove the patch applicator and observe the skin reaction 30 minutes after the pressure mark disappears. If the result is negative, observe again at 24 hours and 48 hours after the patch test.

[0065] Evaluation criteria: Grade 0: Negative reaction; Grade 1: Suspicious reaction, with only slight erythema; Grade 2: Weak positive reaction, erythema, infiltration, edema, and possible papules; Grade 3: Strong positive reaction, erythema, infiltration, edema, papules may be present, and the reaction may extend beyond the test area; Grade 4: Extremely positive reaction, with obvious erythema, severe infiltration, edema, confluent herpes, and reaction extending beyond the test area.

[0066] Test results: All subjects had negative skin reactions, indicating that the serum provided by this invention is safe and non-irritating.

[0067] Human efficacy test Objective and Principle of the Experiment: Blue light can penetrate to the dermis of the skin. Under blue light irradiation, mitochondria in cells produce reactive oxygen species (ROS), which react with mitochondria, DNA, and lipid-containing cellular structures such as cell membranes, mitochondrial membranes, and lysosomes, causing damage to mitochondria and DNA, resulting in cell membrane dysfunction, affecting cell growth and development, destroying cell structure, and leading to cell damage and apoptosis. Superficially, blue light induces the production of free radicals in cells, damaging fibroblasts in the dermis and reducing the extracellular matrix, thus leading to premature skin aging and darkening. Furthermore, blue light irradiation generates significant heat, causing the arms to redden and darken rapidly, and the epidermis to become dry, resulting in localized irritation. The blue light protection efficacy of the tested samples can be evaluated by detecting changes in skin melanin, redness, and skin brightness.

[0068] Test instruments: This test used a multifunctional skin analyzer and the 7th generation VISIA to detect and photograph changes in the red area after blue light exposure, and analyzed changes in ITA, melanin, and red pigment to evaluate the effectiveness of the test samples in protecting against blue light.

[0069] Test samples: serums 1-5, serums ①-⑤, blank serum.

[0070] Subject selection: Healthy subjects aged 20-60 years, regardless of gender, with each subject corresponding to 11 test samples, for a total of 30 subjects.

[0071] Test Method: The subject's back was washed, patted dry with a tissue, and dried in a constant temperature and humidity chamber (temperature 20±2℃, relative humidity 50±5%) for 25±5 minutes. Twelve test areas were marked on the back, divided into 11 irradiated test areas and 1 unirradiated test area. For each of the 11 irradiated test areas, 20 μL of the designated test sample was applied and allowed to stand at room temperature for 10 minutes for absorption. For the unirradiated test area, an equal amount of blank serum was applied and allowed to stand at room temperature for 10 minutes for absorption. The irradiated test areas were then irradiated with red and blue light therapy at the same distance and in the same manner, using the same blue light dose (blue light irradiation dose of 30 J / cm² for 7 minutes).2 After irradiating the test area, the ITA value, melanin content and hemoglobin content of the skin were measured using CL400 and MX18 probes, respectively. During the period when the test area of ​​the irradiated group was irradiated with blue light, the unirradiated test area was covered with an opaque cloth to prevent it from being irradiated by blue light.

[0072] Experimental instruments: Multifunctional skin analyzer (purchased from CK, model MPA6); VISIA (purchased from Canfield, USA, model 7th generation); Red and blue light therapy device (purchased from Sigma, model SP-3BR).

[0073] The test lasted for 30 days, with the test sample applied and irradiated once a day.

[0074] Data Analysis: Using the data from the blank serum group (untreated) as 100%, the effects of the samples on various skin parameters were calculated. The calculation formula is as follows: The higher the ITA value, the whiter the skin; the lower the melanin value, the less melanin is present in the skin; and the lower the red pigment content, the less red pigment is present in the skin.

[0075] Calculation formula: Rate of change = Detected value A / Detection value 未照射 ×100% Among the detected values A These are the detection values ​​for the irradiated group. 未照射 These are the test values ​​for the un-irradiated group.

[0076] Table 2 Results of the blue light protection efficacy test of the serum

[0077] As shown in Table 2, comparing the results of the un-irradiated group and the blank serum in the irradiated group, blue light irradiation significantly increased the content of melanin and red pigment in the skin of the tested area and significantly reduced the ITA value. In this invention, serums 1-5 all have certain blue light protection effects. Comparing the results of serums 1-5, serums ①-⑤, and the blank serum in the irradiated group, it is clear that the addition and amount of the composition have a significant impact on the blue light protection efficacy of the serums. Comparing the results of serums 1-3 and the blank serum in the irradiated group, it is clear that the amount of the composition added significantly affects the blue light protection efficacy of the serums. The blue light protection efficacy is significantly affected. Comparing the results of serums 1-3, serum 1 shows the best cost-effectiveness. Comparing serum 1 with serums 4, 5, and 5, it is clear that the proportion of each ingredient in the composition of this invention has a significant impact on the blue light protection efficacy of the serum. When the amount of ingredients used in the composition is not within the range defined by this invention, its efficacy is poor. Comparing serum 1 with serums ①-④, it is clear that there is a significant synergistic effect among the ingredients in the composition of this invention. When used together, they have a significant blue light protection efficacy.

[0078] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention shall be considered equivalent substitutions and shall be included within the protection scope of the present invention.

Claims

1. A skincare composition with blue light protection function, characterized in that, The skincare composition comprises the following ingredients in parts by weight: Tetrahydromethylpyrimidine carboxylic acid: 0.5-4 parts; Troxerutin: 0.5-4 parts; Red ginger extract: 0.1-0.5 parts; Cocoa seed extract: 0.1-0.5 parts.

2. The skincare composition according to claim 1, characterized in that, The skincare composition comprises the following ingredients in parts by weight: Tetrahydromethylpyrimidine carboxylic acid: 2 parts; Troxerutin: 3 parts; Red ginger extract: 0.4 parts; Cocoa seed extract: 0.3 parts.

3. The use of the skin care composition with blue light protection as described in claim 1 or 2 in the preparation of cosmetics with blue light protection.

4. The application as described in claim 3, characterized in that, The cosmetic product with blue light protection function is any one of face cream, spray, serum, or mask.

5. A serum with blue light protection function, characterized in that, The serum contains 1-10 wt% of the skincare composition as described in claim 1 or 2.

6. The essence as described in claim 5, characterized in that, The serum also includes moisturizers, preservatives, thickeners, and deionized water.

7. The essence as described in claim 6, characterized in that, The moisturizer includes at least one of sodium hyaluronate, glycerin, butylene glycol, panthenol, and allantoin.

8. The essence as described in claim 6, characterized in that, The preservative includes at least one of phenoxyethanol, sorbic acid, potassium sorbate, and p-hydroxyacetophenone.

9. The essence as described in claim 6, characterized in that, The thickener includes at least one of carrageenan, xanthan gum, carrageenan, and carbomer.

Citation Information

Patent Citations

  • Natural cosmetic light-proofing protecting agent

    CN105596264A

  • Composition with blue light resistance and repairing efficacy and preparation method and application thereof

    CN110237016A

  • Skin-care active liquid capable of improving light-resistant effect

    CN112274473A

  • Natural sunscreen composition as well as preparation method and application thereof

    CN116059127A

  • Use of troxerutin to quench the fluorescence of disodium phenyl dibenzimidazole tetrasulfonate

    WO2007128840A2