Composite gel composition with synergistic blackhead removal and barrier repair functions as well as preparation method and application of composite gel composition

Abstract

The invention relates to a composite gel composition with synergistic blackhead removal and barrier repair functions. The composite gel composition comprises the following components: 1-2 parts of mandelic acid; 2-3 parts of tea tree essential oil; and 3-5 parts of carboxymethyl yeast glucan, wherein the substitution degree of the carboxymethyl yeast glucan is 65-70%. The mandelic acid is used for dissolving the blackheads, the tea tree essential oil is used for resisting bacteria and inflammation, the carboxymethyl yeast glucan, the purslane extract and the D-panthenol are used for synergistically promoting barrier repair, a'clearing-anti-inflammatory repair 'closed loop is formed, and the problem that the mandelic acid permeates and dissolves the blackheads is solved; the tea tree essential oil is antibacterial and anti-inflammatory; the carboxymethyl yeast glucan and the purslane extract synergistically resist inflammation, relieve and promote repair.

Description

Technical Field

[0001] This invention relates to the field of cosmetic technology, specifically to a composite gel composition with synergistic blackhead removal and barrier repair functions, its preparation method, and its application. Background Technology

[0002] Blackheads are a common skin problem on the T-zone and forehead. Their formation mechanism involves sebum secreted by sebaceous glands mixing with dead skin cells on the skin's surface, clogging pores, and then oxidizing upon exposure to air to form black plug-like substances. Current technologies for solving blackhead problems are mainly divided into two categories: physical and chemical methods. Physical methods, such as blackhead strips and comedone extractors, can temporarily remove surface blackheads, but they can easily stretch and enlarge pores, and cannot remove deep-seated blockages. Repeated use may also damage the skin's surface structure and disrupt the skin barrier. Chemical methods, such as products containing salicylic acid or fruit acids, dissolve dead skin cells and unclog pores to remove blackheads. However, high concentrations of acids can easily irritate the skin, causing redness, stinging, and dryness, especially for people with sensitive skin, potentially further exacerbating skin barrier damage. To address these issues, some existing products attempt to combine acidic ingredients with soothing components such as panthenol and allantoin. However, significant technical shortcomings remain: First, there is a lack of systematic synergistic formulation design, resulting in isolated mechanisms of action for each ingredient and an inability to form a complete "blackhead removal-anti-inflammatory-repair" chain. Second, the carriers are not optimized for the characteristics of the ingredients; the rapid release of acidic ingredients and excessively high local concentrations can still cause irritation. Third, the activity of repairing ingredients is insufficient, making it difficult to achieve rapid barrier repair while removing blackheads, leaving the skin in a fragile state for a long time after blackhead removal, prone to recurring blackheads or sensitivity problems. Therefore, developing a cosmetic composition that can achieve synergistic effects of blackhead removal and barrier repair with low irritation has become an urgent technical need in this field. Summary of the Invention

[0003] In view of the deficiencies of the prior art, the purpose of this invention is to provide a composite gel composition with synergistic blackhead removal and barrier repair functions, its preparation method and application, so as to solve the problems mentioned in the background art.

[0004] The present invention solves the technical problem by adopting the following technical solution: This invention provides a composite gel composition with synergistic blackhead removal and barrier repair functions, comprising the following components by weight: Mandelic acid: 1–2 parts; Tea tree oil: 2–3 parts; Carboxymethyl yeast dextran: 3–5 parts, wherein the degree of substitution of the carboxymethyl yeast dextran is 65–70%; Purslane extract: 4–5 parts; D-Panthenol: 1–2 parts; Chitosan-gelatin-polyvinyl alcohol composite gel matrix: 20 parts. Preferably, the degree of substitution of the carboxymethyl yeast dextran is 69.6%. Preferably, the purslane extract is prepared using an enzymatic hydrolysis-ultrasonic extraction process, specifically as follows: S1: First, crush the purslane into a paste, then add the paste to a sodium alginate solution that is 5-8 times the total volume of the paste and stir evenly to obtain a paste solution adjusted with sodium alginate. The preparation method of sodium alginate solution is as follows: S1a: Preheat nano-titanium dioxide at 55-60℃ for 1 hour, then mix 3-5 parts of preheated nano-titanium dioxide, 2-4 parts of nano-cellulose and 3-5 parts of 5-8% (w / w) dopamine hydrochloride solution evenly to obtain modified nano-titanium dioxide agent. S1b: Add 20-25% of the total amount of modified nano-titanium dioxide to the sodium alginate solution, stir evenly, and obtain sodium alginate solution; S2: Add an enzymatic hydrolysant to the residue liquid adjusted with sodium alginate for enzymatic hydrolysis. After the treatment is completed, the enzyme is inactivated to obtain the enzymatic hydrolysate. The enzymatic hydrolysate is then subjected to ultrasonic extraction in a solvent with a volume of 5-8 times the total volume of the enzymatic hydrolysate. After the treatment is completed, the filtrate is collected to obtain the purslane extract.

[0005] Preferably, the enzymatic hydrolysant is a compound of cellulase and ligninase in a weight ratio of 3:2, and the enzymatic hydrolysis temperature is 37-38℃, and the enzymatic hydrolysis time is 1-2h.

[0006] Preferably, the solvent is ethanol; the ultrasonic power of the ultrasonic extraction process is 350-400W, and the ultrasonic treatment lasts for 1 hour; the mass fraction of the dopamine hydrochloride solution is 7-11%.

[0007] Preferably, the chitosan-gelatin-polyvinyl alcohol composite gel matrix is ​​prepared from chitosan, citric acid, polyvinyl alcohol, and gelatin in a weight ratio of 1:0.5:3:2.

[0008] In the preparation of purslane extract, sodium alginate solution is used for conditioning, followed by enzymatic hydrolysis with an enzymatic hydrolysant, and finally ultrasonic extraction to optimize the extraction efficiency of purslane extract. At the same time, the modified nano-titanium dioxide agent in sodium alginate solution is added to the system to further enhance the performance of the product system, thereby optimizing the functional effect of the product.

[0009] This invention also provides a method for preparing a composite gel composition with synergistic blackhead removal and barrier repair functions, comprising the following steps: S1: Weigh out carboxymethyl yeast dextran, purslane extract and D-panthenol by weight, disperse them in deionized water, and stir at 25–30℃ for 10–15 minutes to obtain a mixed component; S2: Weigh out the mandelic acid and tea tree oil by weight, and add them together with the mixture obtained in step S1 into the pre-prepared chitosan-gelatin-polyvinyl alcohol composite gel matrix. Stir at a low speed of 100-200 rpm for 15-30 minutes until the mixture is homogeneous to obtain the composite gel composition. Preferably, the preparation process of the pre-prepared chitosan-gelatin-polyvinyl alcohol composite gel matrix in step S2 is as follows: weigh chitosan, citric acid, polyvinyl alcohol and gelatin according to the weight ratio, heat and dissolve polyvinyl alcohol in deionized water, add chitosan and citric acid, stir until chitosan is completely dissolved, then add gelatin, keep warm and stir at 50-60℃ for 20-25 minutes, and cool to room temperature to obtain the final product. The present invention also provides the application of a composite gel composition with synergistic blackhead removal and barrier repair functions in cosmetics. The composite gel composition can be used as an active ingredient to prepare blackhead removal repair gel, blackhead removal repair essence or blackhead removal repair mask.

[0010] Compared with the prior art, the present invention has the following beneficial effects: This invention synergistically removes and repairs blackheads: mandelic acid dissolves blackheads, tea tree oil has antibacterial and anti-inflammatory properties, and carboxymethyl yeast glucan, purslane extract, and D-panthenol synergistically promote barrier repair, forming a closed loop of "removal-anti-inflammatory repair," which solves the problem of existing products having only one function. Mandelic acid penetrates and dissolves blackheads; tea tree oil has antibacterial and anti-inflammatory properties; carboxymethyl yeast glucan and purslane extract synergistically have anti-inflammatory, soothing, and repair-promoting effects; D-panthenol accelerates barrier repair; and the composite gel matrix enhances load-bearing and sustained-release capacity, reduces irritation, and improves the user experience. Detailed Implementation

[0011] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to specific examples. 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 skilled in the art without creative effort are within the scope of protection of the present invention.

[0012] This embodiment presents a composite gel composition with synergistic blackhead removal and barrier repair functions, its preparation method, and its application, in order to solve the problems mentioned in the background art.

[0013] The present invention solves the technical problem by adopting the following technical solution: This embodiment of a composite gel composition with synergistic blackhead removal and barrier repair functions includes the following components by weight: Mandelic acid: 1–2 parts; Tea tree oil: 2–3 parts; Carboxymethyl yeast dextran: 3–5 parts, wherein the degree of substitution of the carboxymethyl yeast dextran is 65–70%; Purslane extract: 4–5 parts; D-Panthenol: 1–2 parts; Chitosan-gelatin-polyvinyl alcohol composite gel matrix: 20 parts. The degree of substitution of carboxymethyl yeast dextran in this embodiment is 69.6%. The purslane extract in this embodiment was prepared using an enzymatic hydrolysis-ultrasonic extraction process. The specific preparation method is as follows: S1: First, crush the purslane into a paste, then add the paste to a sodium alginate solution that is 5-8 times the total volume of the paste and stir evenly to obtain a paste solution adjusted with sodium alginate. The preparation method of sodium alginate solution is as follows: S1a: Preheat nano-titanium dioxide at 55-60℃ for 1 hour, then mix 3-5 parts of preheated nano-titanium dioxide, 2-4 parts of nano-cellulose and 3-5 parts of 5-8% (w / w) dopamine hydrochloride solution evenly to obtain modified nano-titanium dioxide agent. S1b: Add 20-25% of the total amount of modified nano-titanium dioxide to the sodium alginate solution, stir evenly, and obtain sodium alginate solution; S2: Add an enzymatic hydrolysant to the residue liquid adjusted with sodium alginate for enzymatic hydrolysis. After the treatment is completed, the enzyme is inactivated to obtain the enzymatic hydrolysate. The enzymatic hydrolysate is then subjected to ultrasonic extraction in a solvent with a volume of 5-8 times the total volume of the enzymatic hydrolysate. After the treatment is completed, the filtrate is collected to obtain the purslane extract.

[0014] In this embodiment, the enzymatic hydrolysant is a mixture of cellulase and ligninase in a weight ratio of 3:2. The enzymatic hydrolysis temperature is 37-38℃ and the enzymatic hydrolysis time is 1-2 hours.

[0015] The solvent in this embodiment is ethanol; the ultrasonic power of the ultrasonic extraction process is 350-400W, and the ultrasonic treatment lasts for 1 hour; the mass fraction of the hydrochloric acid dopamine solution is 7-11%.

[0016] The chitosan-gelatin-polyvinyl alcohol composite gel matrix of this embodiment is prepared by chitosan, citric acid, polyvinyl alcohol and gelatin in a weight ratio of 1:0.5:3:2. The preparation method of a composite gel composition with synergistic blackhead removal and barrier repair functions according to this embodiment includes the following steps: S1: Weigh out carboxymethyl yeast dextran, purslane extract and D-panthenol by weight, disperse them in deionized water, and stir at 25–30℃ for 10–15 minutes to obtain a mixed component; S2: Weigh out the mandelic acid and tea tree oil by weight, and add them together with the mixture obtained in step S1 into the pre-prepared chitosan-gelatin-polyvinyl alcohol composite gel matrix. Stir at a low speed of 100-200 rpm for 15-30 minutes until the mixture is homogeneous to obtain the composite gel composition. The preparation process of the pre-made chitosan-gelatin-polyvinyl alcohol composite gel matrix in step S2 of this embodiment is as follows: weigh chitosan, citric acid, polyvinyl alcohol and gelatin according to the weight ratio, heat and dissolve polyvinyl alcohol in deionized water, add chitosan and citric acid, stir until chitosan is completely dissolved, then add gelatin, keep warm and stir at 50-60℃ for 20-25 minutes, and cool to room temperature to obtain the final product.

[0017] This embodiment describes the application of a composite gel composition with synergistic blackhead removal and barrier repair functions in cosmetics. The composite gel composition can be used as an active ingredient to prepare blackhead removal repair gel, blackhead removal repair essence, or blackhead removal repair mask.

[0018] Example 1. This embodiment of a composite gel composition with synergistic blackhead removal and barrier repair functions includes the following components by weight: Mandelic acid: 1 part; Tea tree oil: 2 parts; Carboxymethyl yeast dextran: 3 parts, wherein the degree of substitution of the carboxymethyl yeast dextran is 65%; Purslane extract: 4 parts; D-Panthenol: 1 part; Chitosan-gelatin-polyvinyl alcohol composite gel matrix: 20 parts. The degree of substitution of carboxymethyl yeast dextran in this embodiment is 69.6%. The purslane extract in this embodiment was prepared using an enzymatic hydrolysis-ultrasonic extraction process. The specific preparation method is as follows: S1: First, crush the purslane into a paste, then add the paste to a sodium alginate solution that is 5-8 times the total volume of the paste and stir evenly to obtain a paste solution adjusted with sodium alginate. The preparation method of sodium alginate solution is as follows: S1a: Preheat nano-titanium dioxide at 55℃ for 1 hour, then mix 3 parts of preheated nano-titanium dioxide, 2 parts of nano-cellulose and 3 parts of 5% (w / w) dopamine hydrochloride solution evenly to obtain modified nano-titanium dioxide agent. S1b: Add 20% of the total amount of modified nano-titanium dioxide to the sodium alginate solution, stir evenly, and obtain sodium alginate solution; S2: Add an enzymatic hydrolysant to the residue liquid adjusted with sodium alginate for enzymatic hydrolysis. After the treatment is completed, the enzyme is inactivated to obtain the enzymatic hydrolysate. The enzymatic hydrolysate is then subjected to ultrasonic extraction in a solvent with a volume of 5 times the total volume of the enzymatic hydrolysate. After the treatment is completed, the filtrate is collected to obtain purslane extract.

[0019] In this embodiment, the enzymatic hydrolysant is a mixture of cellulase and ligninase in a weight ratio of 3:2. The enzymatic hydrolysis temperature is 37°C and the enzymatic hydrolysis time is 1 hour.

[0020] The solvent in this embodiment is ethanol; the ultrasonic power of the ultrasonic extraction process is 350W, and the ultrasonic treatment lasts for 1 hour; the mass fraction of the hydrochloric acid dopamine solution is 7%.

[0021] The chitosan-gelatin-polyvinyl alcohol composite gel matrix of this embodiment is prepared by chitosan, citric acid, polyvinyl alcohol and gelatin in a weight ratio of 1:0.5:3:2. The preparation method of a composite gel composition with synergistic blackhead removal and barrier repair functions according to this embodiment includes the following steps: S1: Weigh out carboxymethyl yeast dextran, purslane extract and D-panthenol by weight, disperse them in deionized water, and stir at 25°C for 10 minutes to obtain a mixed component; S2: Weigh out the mandelic acid and tea tree oil by weight, and add them together with the mixture obtained in step S1 into the pre-prepared chitosan-gelatin-polyvinyl alcohol composite gel matrix. Stir at a low speed of 100 rpm for 15 minutes until the mixture is homogeneous to obtain the composite gel composition. The preparation process of the pre-made chitosan-gelatin-polyvinyl alcohol composite gel matrix in step S2 of this embodiment is as follows: weigh chitosan, citric acid, polyvinyl alcohol and gelatin according to the weight ratio, heat and dissolve polyvinyl alcohol in deionized water, add chitosan and citric acid, stir until chitosan is completely dissolved, then add gelatin, keep warm and stir at 50°C for 20 minutes, and cool to room temperature to obtain the final product.

[0022] This embodiment describes the application of a composite gel composition with synergistic blackhead removal and barrier repair functions in cosmetics. The composite gel composition can be used as an active ingredient to prepare blackhead removal repair gel, blackhead removal repair essence, or blackhead removal repair mask.

[0023] Example 2. This embodiment of a composite gel composition with synergistic blackhead removal and barrier repair functions includes the following components by weight: Mandelic acid: 2 parts; Tea tree oil: 3 parts; Carboxymethyl yeast glucan: 5 parts, wherein the degree of substitution of the carboxymethyl yeast glucan is 70%; Purslane extract: 5 parts; D-Panthenol: 2 parts; Chitosan-gelatin-polyvinyl alcohol composite gel matrix: 20 parts. The degree of substitution of carboxymethyl yeast dextran in this embodiment is 69.6%. The purslane extract in this embodiment was prepared using an enzymatic hydrolysis-ultrasonic extraction process. The specific preparation method is as follows: S1: First, crush the purslane into a paste, then add the paste to a sodium alginate solution that is 5-8 times the total volume of the paste and stir evenly to obtain a paste solution adjusted with sodium alginate. The preparation method of sodium alginate solution is as follows: S1a: Preheat nano-titanium dioxide at 60℃ for 1 hour, then mix 5 parts of preheated nano-titanium dioxide, 4 parts of nano-cellulose and 5 parts of 5-8% (w / w) dopamine hydrochloride solution evenly to obtain modified nano-titanium dioxide agent. S1b: Add 25% of the total amount of modified nano-titanium dioxide to the sodium alginate solution, stir evenly, and obtain sodium alginate solution; S2: Add an enzymatic hydrolysant to the residue liquid adjusted with sodium alginate for enzymatic hydrolysis. After the treatment is completed, the enzyme is inactivated to obtain the enzymatic hydrolysate. The enzymatic hydrolysate is then subjected to ultrasonic extraction in a solvent with a volume of 8 times the total volume of the enzymatic hydrolysate. After the treatment is completed, the filtrate is collected to obtain purslane extract.

[0024] In this embodiment, the enzymatic hydrolysant is a mixture of cellulase and ligninase in a weight ratio of 3:2. The enzymatic hydrolysis temperature is 38°C and the enzymatic hydrolysis time is 2 hours.

[0025] The solvent in this embodiment is ethanol; the ultrasonic extraction process uses an ultrasonic power of 400W for 1 hour; and the mass fraction of the dopamine hydrochloride solution is 11%.

[0026] The chitosan-gelatin-polyvinyl alcohol composite gel matrix of this embodiment is prepared by chitosan, citric acid, polyvinyl alcohol and gelatin in a weight ratio of 1:0.5:3:2. The preparation method of a composite gel composition with synergistic blackhead removal and barrier repair functions according to this embodiment includes the following steps: S1: Weigh out carboxymethyl yeast dextran, purslane extract and D-panthenol by weight, disperse them in deionized water, and stir at 30°C for 15 minutes to obtain a mixed component; S2: Weigh out mandelic acid and tea tree oil by weight, and add them together with the mixture obtained in step S1 into the pre-prepared chitosan-gelatin-polyvinyl alcohol composite gel matrix. Stir at a low speed of 200 rpm for 30 minutes until the mixture is homogeneous to obtain the composite gel composition. The preparation process of the pre-made chitosan-gelatin-polyvinyl alcohol composite gel matrix in step S2 of this embodiment is as follows: weigh chitosan, citric acid, polyvinyl alcohol and gelatin according to the weight ratio, heat and dissolve polyvinyl alcohol in deionized water, add chitosan and citric acid, stir until chitosan is completely dissolved, then add gelatin, keep warm and stir at 60°C for 25 minutes, and cool to room temperature to obtain the final product.

[0027] This embodiment describes the application of a composite gel composition with synergistic blackhead removal and barrier repair functions in cosmetics. The composite gel composition can be used as an active ingredient to prepare blackhead removal repair gel, blackhead removal repair essence, or blackhead removal repair mask.

[0028] Example 3.

[0029] This embodiment of a composite gel composition with synergistic blackhead removal and barrier repair functions includes the following components by weight: Mandelic acid: 1.5 parts; Tea tree oil: 2.5 parts; Carboxymethyl yeast dextran: 4 parts, wherein the degree of substitution of the carboxymethyl yeast dextran is 68%; Purslane extract: 4.5 parts; D-Panthenol: 1.5 parts; Chitosan-gelatin-polyvinyl alcohol composite gel matrix: 20 parts. The degree of substitution of carboxymethyl yeast dextran in this embodiment is 69.6%. The purslane extract in this embodiment was prepared using an enzymatic hydrolysis-ultrasonic extraction process. The specific preparation method is as follows: S1: First, crush the purslane into a paste, then add the paste to a sodium alginate solution that is 5-8 times the total volume of the paste and stir evenly to obtain a paste solution adjusted with sodium alginate. The preparation method of sodium alginate solution is as follows: S1a: Preheat nano-titanium dioxide at 58℃ for 1 hour, then mix 4 parts of preheated nano-titanium dioxide, 3 parts of nano-cellulose and 4 parts of 6.5% (w / w) dopamine hydrochloride solution evenly to obtain modified nano-titanium dioxide agent. S1b: Add 22.5% of the total amount of modified nano-titanium dioxide to the sodium alginate solution, stir evenly, and obtain sodium alginate solution; S2: Add an enzymatic hydrolysant to the residue liquid adjusted with sodium alginate for enzymatic hydrolysis. After the treatment is completed, the enzyme is inactivated to obtain the enzymatic hydrolysate. The enzymatic hydrolysate is then subjected to ultrasonic extraction in a solvent with a volume of 6.5 times the total volume of the enzymatic hydrolysate. After the treatment is completed, the filtrate is collected to obtain the purslane extract.

[0030] In this embodiment, the enzymatic hydrolysant is a mixture of cellulase and ligninase in a weight ratio of 3:2. The enzymatic hydrolysis temperature is 37.5℃ and the enzymatic hydrolysis time is 1.5h.

[0031] The solvent in this embodiment is ethanol; the ultrasonic power of the ultrasonic extraction process is 375W, and the ultrasonic treatment lasts for 1 hour; the mass fraction of the hydrochloric acid dopamine solution is 9%.

[0032] The chitosan-gelatin-polyvinyl alcohol composite gel matrix of this embodiment is prepared by chitosan, citric acid, polyvinyl alcohol and gelatin in a weight ratio of 1:0.5:3:2. The preparation method of a composite gel composition with synergistic blackhead removal and barrier repair functions according to this embodiment includes the following steps: S1: Weigh out carboxymethyl yeast dextran, purslane extract and D-panthenol according to the weight parts, disperse them in deionized water, stir at 28°C for 12.5 minutes to obtain the mixed components; S2: Weigh out the mandelic acid and tea tree oil by weight, and add them together with the mixture obtained in step S1 into the pre-prepared chitosan-gelatin-polyvinyl alcohol composite gel matrix. Stir at a low speed of 150 rpm for 17.5 minutes until the mixture is homogeneous to obtain the composite gel composition. The preparation process of the pre-made chitosan-gelatin-polyvinyl alcohol composite gel matrix in step S2 of this embodiment is as follows: weigh chitosan, citric acid, polyvinyl alcohol and gelatin according to the weight ratio, heat and dissolve polyvinyl alcohol in deionized water, add chitosan and citric acid, stir until chitosan is completely dissolved, then add gelatin, keep warm and stir at 55°C for 22.5 minutes, and cool to room temperature to obtain the final product.

[0033] This embodiment describes the application of a composite gel composition with synergistic blackhead removal and barrier repair functions in cosmetics. The composite gel composition can be used as an active ingredient to prepare blackhead removal repair gel, blackhead removal repair essence, or blackhead removal repair mask.

[0034] Comparative Example 1. Unlike Example 3, sodium alginate solution was not used in the preparation of purslane extract.

[0035] Comparative Example 2. Unlike Example 3, no modified nano-titanium dioxide agent was added to the sodium alginate solution.

[0036] Comparative Example 3. Unlike Example 3, the modified nano-titanium dioxide agent is replaced with nano-titanium dioxide.

[0037] Comparative Example 4. Unlike Example 3, enzymatic hydrolysis was not used in the preparation of the purslane extract.

[0038] Performance tests were conducted on the products of Examples 1-3 and Comparative Examples 1-4, and the test results are as follows: The product was tested for effectiveness. The test subjects were volunteers (aged 20-30) with noticeable blackheads, with 10 people in each group. The product was used once daily for two weeks. The results are as follows:

[0039] From Examples 1-3 and Comparative Examples 1-4, it can be seen that the product of Example 3 of the present invention has the best blackhead removal efficiency and barrier repair effect, and the lowest irritation. In the preparation of purslane extract, sodium alginate solution was not used, modified nano titanium dioxide agent was not added to sodium alginate solution, and nano titanium dioxide was used instead of modified nano titanium dioxide agent. In the preparation of purslane extract, enzymatic hydrolysis treatment was not used. The performance of the products tended to deteriorate. Only the purslane extract obtained by the method of the present invention has the most significant performance effect. The effect of other methods is not as significant as that of the present invention.

[0040] 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.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A composite gel composition having a synergistic blackhead-removing and barrier-repairing function, characterized by, By weight parts, including the following components: Bitter almond acid: 1-2 parts; Tea tree essential oil: 2-3 parts; Carboxymethyl yeast glucan: 3-5 parts, the degree of substitution of the carboxymethyl yeast glucan is 65-70%; Portulaca oleracea extract: 4-5 parts; D-panthenol: 1-2 parts; Chitosan-gelatin-polyvinyl alcohol composite gel matrix: 20 parts.

2. The composite gel composition according to claim 1, characterized in that, The degree of substitution of the carboxymethyl yeast glucan is 69.6%.

3. The composite gel composition of claim 1, wherein The portulaca oleracea extract is prepared by an enzymatic-ultrasonic combined extraction process, and the specific preparation method is as follows: S1: The portulaca oleracea is first crushed into residue, and the residue is added to a sodium alginate solution with a sodium alginate liquid amount of 5-8 times that of the residue to obtain a sodium alginate adjusted residue liquid; The preparation method of the sodium alginate liquid is as follows: S1a: The nano-titanium dioxide is preheated at 55-60°C for 1h, 3-5 parts of the preheated nano-titanium dioxide, 2-4 parts of nano-cellulose and 3-5 parts of a 5-8% mass fraction dopamine hydrochloride solution are uniformly blended to obtain a modified nano-titanium dioxide agent; S1b: The modified nano-titanium dioxide agent is added to the sodium alginate solution, and the mixture is stirred uniformly to obtain a sodium alginate liquid; S2: The enzyme solution is added to the sodium alginate adjusted residue liquid for enzymatic treatment, and after the treatment is completed, the enzyme is inactivated to obtain an enzymatic material. The enzymatic material is ultrasonically extracted in a solvent with a solvent amount of 5-8 times that of the enzymatic material. After the treatment is completed, the filtrate is obtained to obtain the portulaca oleracea extract.

4. The composite gel composition according to claim 3, wherein The enzyme solution is a composite of cellulase and ligninase in a weight ratio of 3:

2. The enzymatic treatment is carried out at an enzymatic temperature of 37-38°C for 1-2h.

5. The composite gel composition according to claim 3, wherein The solvent is an ethanol solvent. The ultrasonic extraction treatment is carried out at an ultrasonic power of 350-400W for 1h. The mass fraction of the dopamine hydrochloride solution is 7-11%.

6. The composite gel composition of claim 3, wherein The chitosan-gelatin-polyvinyl alcohol composite gel matrix is prepared from chitosan, citric acid, polyvinyl alcohol and gelatin in a weight ratio of 1:0.5:3:

2.

7. A method of preparing a composite gel composition having a synergistic blackhead-removing and barrier-repairing function according to any one of claims 1 to 6, characterized by, The steps include: S1: The carboxymethyl yeast glucan, portulaca oleracea extract and D-panthenol are weighed by weight parts and dispersed in deionized water. The mixture is stirred at 25-30°C for 10-15 minutes to obtain a mixed component; S2: The bitter almond acid and tea tree essential oil are weighed by weight parts and added to the chitosan-gelatin-polyvinyl alcohol composite gel matrix prepared in step S1. The mixture is stirred at a low speed of 100-200rpm for 15-30 minutes. After the mixture is uniformly mixed, the composite gel composition is obtained.

8. The preparation method according to claim 6, characterized in that, The preparation process of the chitosan-gelatin-polyvinyl alcohol composite gel matrix prepared in step S2 is as follows: chitosan, citric acid, polyvinyl alcohol and gelatin are weighed by weight ratio. The polyvinyl alcohol is dissolved in deionized water by heating. The chitosan and citric acid are added and stirred until the chitosan is completely dissolved. The gelatin is then added. The mixture is stirred and kept at 50-60°C for 20-25 minutes. After the mixture is cooled to room temperature, the chitosan-gelatin-polyvinyl alcohol composite gel matrix is obtained.

9. Use of the composite gel composition having synergistic blackhead-removing and barrier-repairing functions according to any one of claims 1 to 8 in cosmetics, characterized in that, The composite gel composition can be used as an effective ingredient to prepare a blackhead removal repair gel, a blackhead removal repair serum or a blackhead removal repair mask.

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