A cosmetic preparation and a method for producing the same

Abstract

This invention discloses a cosmetic formulation and its manufacturing method, aiming to provide a product that can instantly correct skin pigmentation, reduce puffiness, and is environmentally friendly and non-toxic. The core of this formulation lies in the synergy between a multiphase functional carrier system and targeted sustained-release microcapsules. The carrier system provides a delicate, skin-adhering matrix, while the core of the intelligent microcapsules contains active ingredients such as α-arbutin, caffeine, and aescin. The capsule walls respond to body temperature and friction, achieving precise, on-demand release of the active ingredients, thus achieving a "makeup-as-skincare" effect. The formula uses all natural or biocompatible raw materials, eliminating controversial ingredients. The manufacturing method is solvent-free throughout, employing low-temperature homogenization and low-speed stirring processes to protect the integrity of the microcapsule structure and ensure the high efficiency and stability of the active ingredients. This invention's entire system combines excellent instant makeup effects, targeted skincare functions, and green safety characteristics, providing an innovative solution for "makeup and skincare in one" products.

Description

Technical Field

[0001] This invention relates to the field of functional cosmetics technology, and in particular to a color cosmetic preparation and its production method. Background Technology

[0002] As consumer demands for cosmetics evolve, the market's requirements for makeup products have shifted from simply providing color coverage to seeking "makeup and skincare in one" products that also offer skincare benefits. This is especially true in the eye care sector, where consumers urgently need products that can instantly conceal dark circles and eye bags while providing long-term improvement. However, current technologies have the following limitations: Physical separation of efficacy and makeup effect: Currently, most "skin-nourishing makeup" products on the market use a simple mixing method, directly adding active ingredients (such as vitamin C and niacinamide) to foundation or concealer. This physical mixing has obvious drawbacks: a) Active ingredients are directly exposed to a complex matrix, making them prone to inactivation, oxidation, or reaction with makeup ingredients; b) The release of active ingredients cannot be controlled, resulting in waste or irritation; c) The concentration of active ingredients is limited, otherwise it will affect the texture and stability of the product.

[0003] Insufficient targeted efficacy: For eye area problems (pigmented dark circles, vascular dark circles, puffiness), a combination of active ingredients with multi-pathway and synergistic effects is needed. Existing products either have a single ingredient or, although claiming multiple effects, lack an advanced delivery system that can stably encapsulate and target the release of active ingredients with different properties (such as water-soluble and oil-soluble).

[0004] Safety and environmental concerns: Traditional color cosmetic formulations may contain synthetic esters, mineral oils, preservatives (such as formaldehyde releasers), or microplastic particles that could potentially irritate the sensitive skin around the eyes. Furthermore, the manufacturing process may use organic solvents, which does not align with the green and sustainable principles of modern cosmetics.

[0005] Therefore, developing an innovative color cosmetic formulation and its production method that integrates highly efficient targeted delivery of active ingredients, excellent immediate makeup effect, long-term skin care improvement, and environmental safety has significant market value and technological significance. Summary of the Invention

[0006] The purpose of this application is to provide a color cosmetic preparation and a method for producing the same, in order to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this application provides the following technical solution: a color cosmetic preparation and its production method, comprising the following components by mass percentage: Multiphase functional carrier system: 30-50%, Structured makeup base: 25-45%, Targeted sustained-release active ingredient microcapsules: 10-25%, Natural film-forming and skin feel modifiers: 5-15%, Natural mineral colorants: 3-10%; The multiphase functional carrier system consists of an outer phase, an inner phase, and a biocompatible interface membrane, which is used to physically shield imperfections while providing a stable environment for the storage and release of active ingredients; the core of the targeted sustained-release active ingredient microcapsule contains a combination of active ingredients that improve pigmentation and reduce edema.

[0008] Preferably, the multiphase functional carrier system is a Pickering emulsion or liquid crystal emulsion with a core-shell structure; its outer phase is at least one of squalane, caprylic / capric triglyceride, and phytosterol ester; its inner phase is at least one of bisabolol aqueous solution, aesculin aqueous solution, and composite mineral ion water; and the biocompatible interface membrane is formed by the self-assembly of silica nanoparticles, modified cellulose nanocrystals, or lecithin.

[0009] Preferably, the structured makeup base is selected from at least two of mica powder, boron nitride, silk protein powder, and modified starch, with an average particle size of 5-20 μm, to provide a delicate makeup feel and a skin-adhering filling effect.

[0010] Preferably, the capsule wall of the targeted sustained-release active ingredient microcapsule is a temperature / friction dual-responsive polymer, and the core comprises: Components that improve pigmentation: α-arbutin or glycyrrhizin encapsulated in liposomes, and L-ascorbic acid glucoside; Components that improve puffiness and the condition around the eyes: a complex of caffeine, aescin, and Siegesbeckia orientalis extract.

[0011] Preferably, the natural film-forming and skin-feel modifier is a compound of pullulan, microcrystalline cellulose and natural silica powder.

[0012] Preferably, the natural mineral colorant is iron oxide, ultramarine, or manganese violet that has been surface-treated with amino acids, and it does not contain heavy metal impurities such as nickel and lead.

[0013] The production method of color cosmetic preparations includes the following steps: S1. Preparation of multiphase functional carrier system: Heat the inner phase component to 40-45℃, slowly add the outer phase containing biocompatible interface stabilizer under high speed homogenization, homogenize at 8000-12000 rpm for 10-15 minutes to form a stable emulsion system, and cool to below 35℃ for later use. S2. Pre-treatment of makeup base: The structured makeup base and natural mineral colorant are mixed in a three-dimensional mixer under an inert atmosphere for 30 minutes to fully disperse and form premixed color powder; S3. Low-temperature construction of paste: The multiphase functional carrier system prepared in step S1 is placed in a vacuum mixing tank. At 30-35℃ and 100-300 rpm, natural film-forming and skin feel modifiers and premixed color powder from step S2 are added in sequence and stirred until a uniform slurry without lumps is formed. S4. Precise addition of active ingredients: Keep the system below 30°C, add targeted sustained-release active ingredient microcapsules, and use a planetary mixer to stir at a low speed of 50-100 rpm for 20-30 minutes to ensure that the microcapsules are intact and evenly dispersed; S5. Molding and post-processing: After vacuum degassing, the uniform slurry is filled into sterile containers or pressed into shape in a specific mold, and then allowed to stand and cure in a cool, dark environment for 24-48 hours to obtain the finished product.

[0014] Preferably, in step S1, the high-speed homogenization process is carried out under nitrogen protection; in step S4, the planetary mixer has a revolution speed of 50 rpm and a rotation speed of 30 rpm.

[0015] Preferably, no organic solvents, synthetic fragrances, parabens, or plastic microbeads are used in the production process.

[0016] In summary, the technical effects and advantages of this invention are as follows: Achieving precise "makeup-as-skincare" efficacy: Through the design of targeted, sustained-release microcapsules (temperature / friction dual-responsive), the product achieves intelligent release of active ingredients. When the product is applied to the warmer skin around the eyes with gentle friction, the microcapsule wall responsively opens, precisely releasing components that improve pigmentation (such as α-arbutin and glycyrrhizin) and components that improve puffiness (such as caffeine and aescin). This on-demand release mode greatly improves the utilization efficiency of active ingredients, achieving a perfect combination of immediate coverage and long-term improvement.

[0017] Constructing a stable and efficient active ingredient delivery environment: Multiphase functional carrier systems (Pickering emulsions or liquid crystal emulsions) not only provide a light and smooth application feel and excellent skin adhesion, but their unique microstructure also provides a stable "chamber" that physically isolates the internal aqueous and oil-phase active ingredients. Biocompatible interfacial membranes (such as silica nanoparticles) further enhance the long-term stability of the system, preventing the active ingredients from being deactivated or migrating during storage.

[0018] Delivering exceptional instant makeup results and a comfortable feel: Carefully selected structured makeup bases (such as boron nitride and silk protein powder) with uniform particle size, working synergistically with a multiphase functional carrier system, achieve a highly soft-focus effect, smoothing fine lines, filling pores, and providing a delicate, non-caking finish. Natural film-forming agents and skin-feel modifiers ensure long-lasting makeup and a refreshing, non-sticky feel.

[0019] Fully implement the concept of environmental protection and non-toxicity: Raw material safety: All ingredients are made from carefully selected natural or biocompatible raw materials, avoiding the use of controversial synthetic chemicals, heavy metal pigments, plastic microbeads and irritating preservatives.

[0020] Green process: No organic solvents are used in the entire production process. Low-temperature homogenization and stirring processes are adopted to reduce energy consumption and eliminate the risk of solvent residue.

[0021] Packaging and handling friendly: The formulation has high stability and can be adapted to environmentally friendly packaging materials; all components are easily biodegradable and environmentally friendly. Detailed Implementation

[0022] The technical solutions 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.

[0023] In this document, the term "comprising" is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0024] Example: Example 1: Preparation of a multi-functional concealer (for the eye area)

[0025] 1. Formula (percentage by weight): Multiphase functional carrier system (Pickering emulsion): 40% (external phase: 15% squalane, 10% phytosterol esters; internal phase: 10% aescin aqueous solution; interface stabilizer: 5% hydrophobically modified silica nanoparticles); Structured makeup base: 35% (boron nitride 20%, silk protein powder 15%); Targeted sustained-release active ingredient microcapsules: 18% (capsule wall: poly(N-isopropylacrylamide-co-acrylic acid) copolymer; core: 4% α-arbutin, 3% L-ascorbate glucoside, 6% caffeine / aescin complex, 2% Siegesbeckia orientalis extract, 3% carrier) Natural film-forming and skin feel modifier (pullulan and microcrystalline cellulose complex): 8%; Natural mineral colorant (a mixture of amino acid-coated iron oxide yellow and iron oxide red): 4%.

[0026] 2. Preparation method: S1. Under nitrogen protection, the inner phase (aqueous aescin solution) was heated to 42°C. The outer phase (squalane, phytosterol esters) was mixed uniformly with hydrophobically modified silica nanoparticles. The outer phase was slowly added dropwise to the inner phase under high-speed shearing at 10,000 rpm, and homogenization was continued for 12 minutes to form a stable Pickering emulsion, which was then cooled to 32°C.

[0027] S2. Mix boron nitride, silk protein powder and natural mineral colorant in an argon-filled three-dimensional mixer for 30 minutes to obtain premixed color powder.

[0028] S3. Transfer the emulsion obtained in S1 to a vacuum-cooled, jacketed mixing tank, set the temperature to 32°C and the rotation speed to 200 rpm. Slowly add the natural film-forming agent and skin feel modifier, stirring until completely dissolved and dispersed. Then slowly add the premixed colorant from S2, increase the vacuum to aid defoaming, and stir until the slurry is uniform and smooth.

[0029] S4. Cool the system temperature to 28°C and add the targeted sustained-release active ingredient microcapsules. Switch to a planetary mixer, set the revolution speed to 50 rpm and the rotation speed to 30 rpm, and gently stir at low speed for 25 minutes to ensure that the microcapsules are evenly dispersed and undamaged.

[0030] S5. Degas the final slurry under a vacuum of -0.09 MPa for 5 minutes, then fill it into vacuum-sealed aseptic packaging. Allow it to cure at 20°C in a dark environment for 36 hours to obtain the finished product.

[0031] Effect verification: Instant makeup effect: Tested on 20 volunteers with varying degrees of dark circles and eye bags, the product effectively covered blemishes, leaving a natural and skin-friendly finish without creasing.

[0032] Active ingredient sustained-release test: Using a Franz diffusion cell to simulate skin temperature and friction, the active ingredient was detected to be continuously released within 4-6 hours, which is in line with the design expectations.

[0033] Long-term improvement effects: After 28 days of continuous use, volunteers showed an average reduction of 18% in the area of ​​pigmentation around the eyes through VISIA skin image analysis, significant improvement in puffiness, and increased skin moisture levels.

[0034] Safety: Skin patch tests showed no allergic or irritating reactions in any subjects. The product complies with EU and Chinese cosmetic safety technical specifications.

[0035] Examples 2 & 3: By adjusting the formulation form, we prepared multi-color eyeshadow powder (obtained by wet pressing of S3 slurry) with similar effects and firming eye cream with tinting effect (adjusting the ratio of carrier system and base material, and increasing liquid oil). The core active ingredient microcapsule system and environmentally friendly process remain unchanged, and both exhibit the corresponding makeup modification and skin care improvement functions.

[0036] The above embodiments demonstrate that the present invention successfully combines makeup, targeted skincare, and green concepts, providing a new, efficient, and safe "makeup and skincare in one" product solution.

[0037] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A color cosmetic preparation and its production method, characterized in that: By mass percentage, it includes the following components: Multiphase functional carrier system: 30-50%, Structured makeup base: 25-45%, Targeted sustained-release active ingredient microcapsules: 10-25%, Natural film-forming and skin feel modifiers: 5-15%, Natural mineral colorants: 3-10%; The multiphase functional carrier system consists of an outer phase, an inner phase, and a biocompatible interface membrane, which is used to physically shield imperfections while providing a stable environment for the storage and release of active ingredients; the core of the targeted sustained-release active ingredient microcapsule contains a combination of active ingredients that improve pigmentation and reduce edema.

2. The color cosmetic formulation according to claim 1, characterized in that, The multiphase functional carrier system is a Pickering emulsion or liquid crystal emulsion with a core-shell structure; its outer phase is at least one of squalane, caprylic / capric triglyceride, and phytosterol ester; its inner phase is at least one of bisabolol aqueous solution, aesculin aqueous solution, and composite mineral ion water; and its biocompatible interface membrane is formed by the self-assembly of silica nanoparticles, modified cellulose nanocrystals, or lecithin.

3. The color cosmetic formulation according to claim 1, characterized in that, The structured makeup base is selected from at least two of mica powder, boron nitride, silk protein powder, and modified starch, with an average particle size of 5-20μm, and is used to provide a delicate makeup feel and a skin-adhering filling effect.

4. The color cosmetic formulation according to claim 1, characterized in that, The capsule wall of the targeted sustained-release active ingredient microcapsule is a temperature / friction dual-responsive polymer, and the core contains: Components that improve pigmentation: α-arbutin or glycyrrhizin encapsulated in liposomes, and L-ascorbic acid glucoside; Components that improve puffiness and the condition around the eyes: a complex of caffeine, aescin, and Siegesbeckia orientalis extract.

5. The color cosmetic formulation according to claim 1, characterized in that, The natural film-forming and skin-feel modifier is a compound of pullulan, microcrystalline cellulose and natural silica powder.

6. The color cosmetic formulation according to claim 1, characterized in that, The natural mineral colorant is iron oxide, ultramarine, or manganese violet that has been surface-treated with amino acids, and it does not contain heavy metal impurities such as nickel and lead.

7. A method for preparing a color cosmetic formulation as described in any one of claims 1-6, characterized in that, Includes the following steps: S1. Preparation of multiphase functional carrier system: Heat the inner phase component to 40-45℃, slowly add the outer phase containing biocompatible interface stabilizer under high speed homogenization, homogenize at 8000-12000 rpm for 10-15 minutes to form a stable emulsion system, and cool to below 35℃ for later use. S2. Pre-treatment of makeup base: The structured makeup base and natural mineral colorant are mixed in a three-dimensional mixer under an inert atmosphere for 30 minutes to fully disperse and form premixed color powder; S3. Low-temperature construction of paste: The multiphase functional carrier system prepared in step S1 is placed in a vacuum mixing tank. At 30-35℃ and 100-300 rpm, natural film-forming and skin feel modifiers and premixed color powder from step S2 are added in sequence and stirred until a uniform slurry without lumps is formed. S4. Precise addition of active ingredients: Keep the system below 30°C, add targeted sustained-release active ingredient microcapsules, and use a planetary mixer to stir at a low speed of 50-100 rpm for 20-30 minutes to ensure that the microcapsules are intact and evenly dispersed; S5. Molding and post-processing: After vacuum degassing, the uniform slurry is filled into sterile containers or pressed into shape in a specific mold, and then allowed to stand and cure in a cool, dark environment for 24-48 hours to obtain the finished product.

8. The production method according to claim 7, characterized in that, In step S1, the high-speed homogenization process is carried out under nitrogen protection; in step S4, the planetary mixer has a revolution speed of 50 rpm and a rotation speed of 30 rpm.

9. The production method according to claim 7, characterized in that, No organic solvents, synthetic fragrances, parabens, or plastic microbeads are used in the production process.