Optical skin-brightening composition and optical skin-brightening powder-feeling-free base makeup

Abstract

The invention discloses an optical skin-brightening composition and an optical skin-brightening powder-feeling-free base makeup. The optical skin-brightening composition comprises composite grease and a composite coloring agent, wherein the average particle size of the composite coloring agent is 0.2-0.4 mu m; the composite grease is prepared from four or more of cyclopentasiloxane, methyl polydimethylsiloxane, octyl polydimethylsiloxane, diphenyl siloxy phenyl polytrimethylsiloxane, phenyl polytrimethylsiloxane, C15-19 alkane, polydimethylsiloxane, isododecane and tridecyl trimellitate, and the composite grease is prepared from four or more of cyclopentasiloxane, methyl polydimethylsiloxane, octyl polydimethylsiloxane, diphenyl siloxy phenyl polytrimethylsiloxane, phenyl polytrimethylsiloxane, C15-19 alkane, polydimethylsiloxane, isododecane and tridecyl trimellitate. According to the optical skin-brightening composition, grease with different light refractive indexes is compounded, the average particle size of the composite coloring agent is adjusted, and the grease and the composite coloring agent have a synergistic effect, so that reflected light rays are more concentrated, and the makeup effect of keeping makeup and fitting the skin is achieved while the makeup gloss is ensured.

Description

Technical Field

[0001] The present application belongs to the technical field of daily cosmetics, and in particular relates to an optical skin-lightening composition and an optical skin-lightening powder-free base makeup. Background Art

[0002] Base makeup, such as foundation, is an important part of makeup. Its main function is to cover facial blemishes, brighten skin tone, and give skin a delicate and radiant feel. Liquid foundation, as a common type of foundation, is moist and light, easy to apply, close to the skin, lasting, delicate and brightening, and is a base makeup cosmetic favored by consumers today. Consumers now tend to require base makeup products with high concealing power but clear, natural and powder-free makeup, and a certain glossiness. However, most liquid foundations on the market have problems such as heavy powdery feeling, poor adhesion, and poor glossiness, which leads to floating powder and mottled makeup. Summary of the invention

[0003] The embodiment of the present application provides an optical skin-lightening composition, which, through optical theory, makes the reflected light more concentrated, thereby ensuring the glossiness of the makeup while achieving a long-lasting makeup effect that sticks to the skin.

[0004] In a first aspect, an optical skin lightening composition is provided, comprising: a composite oil and a composite colorant, wherein the average particle size of the composite colorant is 0.2 μm to 0.4 μm; the composite oil comprises four or more of cyclopentasiloxane, methyl dimethicone, octyl dimethicone, diphenylsiloxyphenyl trimethicone, phenyl trimethicone, C15-19 alkane, dimethicone, isododecane and tridecanol trimellitate; the refractive index of cyclopentasiloxane at 25° C. is 1.38 to 1.4; and / or the refractive index of methyl dimethicone at 25° C. is 1.38 to 1.4; and / or the refractive index of octyl dimethicone at 25° C. is 1.38 to 1.4; The refractive index of dimethyl polydimethylsiloxane at 25°C is 1.42-1.43; and / or the refractive index of diphenylsiloxyphenyl trimethylsiloxane at 25°C is 1.49-1.5; and / or the refractive index of phenyl trimethylsiloxane at 25°C is 1.46-1.47; and / or the refractive index of C15-19 alkane at 25°C is 1.43-1.44; and / or the refractive index of polydimethylsiloxane at 25°C is 1.39-1.4; and / or the refractive index of isododecane at 25°C is 1.42-1.43; and / or the refractive index of tridecyl trimellitate at 25°C is 1.48-1.49.

[0005] The optical skin-lightening composition of the present application uses a combination of oils with different light refractive indices and adjusts the average particle size of the composite colorant (0.2 μm to 0.4 μm). The two work synergistically to concentrate the reflected light, thereby ensuring the glossiness of the makeup while achieving a long-lasting makeup effect that sticks to the skin.

[0006] In a first possible implementation, the mass ratio of the composite oil to the composite colorant is (1.4-2):1.

[0007] In combination with the above possible implementation methods, in a second possible implementation method, the mass ratios of cyclopentasiloxane, methyl dimethicone, octyl dimethicone, diphenylsiloxyphenyl trimethicone, phenyl trimethicone, C15-19 alkane, dimethicone, isododecane and tridecyl trimellitate are: (0-7):(0-3):(1.5-7):(0-4):(0-1.5):1:(0-1):(0-0.4):(0-0.2).

[0008] In combination with the above possible implementations, in a third possible implementation, the optical refractive index of the composite grease at 25° C. is 1.38-1.5.

[0009] In the above implementation, the present application adjusts the light refractive index of the composite oil to make the reflected light more concentrated, thereby achieving a skin lightening effect.

[0010] In combination with the above possible implementations, in a fourth possible implementation, the composite colorant includes a first colorant component and a second colorant component, and a mass ratio of the first colorant component to the second colorant component is 1:(1.5-4).

[0011] In the above implementation, the optical skin-lightening composition of the present application forms a smooth covering layer on the surface by adjusting the mass ratio of different colorants, covering pores, acne marks, etc., making the skin look even and delicate, increasing the smoothness of the face, and leaving the optical refractive index of the composite oil unaffected.

[0012] In combination with the above possible implementations, in a fifth possible implementation, the first colorant component is nano titanium dioxide, the average particle size of the nano titanium dioxide is 0.14 μm to 0.19 μm, and the second colorant component is titanium dioxide, the average particle size of the titanium dioxide is 0.2 μm to 0.96 μm.

[0013] In the above implementation method, the present application obtains titanium dioxide's high light scattering ability by using two titanium dioxides with different average particle sizes, namely ordinary titanium dioxide (average particle size of 0.2μm to 0.96μm) and nano titanium dioxide (average particle size of 0.14μm to 0.19μm), which can form a smooth and evenly reflective covering layer on the skin surface. While improving the blemish-covering ability, the makeup looks clearer and powder-free.

[0014] In a second aspect, an optical skin-lightening and powder-free foundation is provided, which comprises the following components, measured in percentage by mass: the optical skin-lightening composition of the first aspect: 23wt% to 32wt%, emulsifier: 3wt% to 6wt%, film-forming agent: 4wt% to 7wt%, filler powder: 1wt% to 4wt%, polyol: 10wt% to 15wt%, inorganic salt: 0.8wt% to 1.2wt%, preservative: 0.7wt% to 1.0wt%, and the balance water.

[0015] In a first possible embodiment, the emulsifier includes one or more of PEG-10 dimethicone, lauryl PEG-10 tri(trimethylsiloxy)silylethyl dimethicone, sorbitan sesquioleate, PEG-9 polydimethylsiloxyethyl dimethicone, lauryl PEG-9 polydimethylsiloxyethyl dimethicone, cetyl PEG / PPG-10 / 1 dimethicone, and polyglyceryl-4 isostearate.

[0016] In combination with the above possible implementations, in a second possible implementation, the film-forming agent includes one or more of acrylate / polytrimethylsiloxane methacrylate copolymer, trimethylsiloxysilicate, acrylate / polydimethylsiloxane copolymer and polymethylsilsesquioxane.

[0017] In combination with the above possible implementations, in a third possible implementation, the filling powder includes one or more of polydimethylsiloxane / vinyl polydimethylsiloxane crosspolymer, mica, polydimethylsiloxane crosspolymer and boron nitride; and / or, the polyol includes one or more of glycerol, 1,2-hexanediol, 1,3-propylene glycol, 1,2-pentanediol and dipropylene glycol; and / or, the inorganic salt includes magnesium sulfate and / or sodium chloride; and / or, the preservative includes one or more of phenoxyethanol, ethylhexylglycerin, sodium benzoate, p-hydroxyacetophenone and caprylhydroxamic acid.

[0018] Compared with the prior art, the optically brightening powder-free foundation provided in the embodiments of the present application can effectively improve the glossiness and makeup lasting effect after use, and effectively improve the problem of powder floating and makeup coming off in existing products. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1These are the makeup effect pictures of the optical brightening and powder-free foundation makeup of Example 1 before and 8 hours after makeup. The left side of the picture is the makeup effect picture before makeup, and the right side is the makeup effect picture 8 hours after makeup.

[0021] Figure 2 These are the makeup effect pictures of the optical brightening and powder-free foundation makeup of Example 2 before and 8 hours after makeup. The left side of the picture is the makeup effect picture before makeup, and the right side is the makeup effect picture 8 hours after makeup.

[0022] Figure 3 These are the makeup effect pictures of the optical brightening and powder-free foundation of Example 3 before and 8 hours after makeup. The left side of the picture is the makeup effect picture before makeup, and the right side is the makeup effect picture 8 hours after makeup.

[0023] Figure 4 These are the makeup effect pictures of the optical brightening and powder-free foundation makeup of Example 4 before and 8 hours after makeup. The left side of the picture is the makeup effect picture before makeup, and the right side is the makeup effect picture 8 hours after makeup.

[0024] Figure 5 These are the makeup effect pictures of the optical brightening and powder-free foundation makeup of Example 1 before and 8 hours after makeup. The left side of the picture is the makeup effect picture before makeup, and the right side is the makeup effect picture 8 hours after makeup.

[0025] Figure 6 These are the makeup effect pictures of the optical brightening and powder-free foundation makeup of Example 2 before and 8 hours after makeup. The left side of the picture is the makeup effect picture before makeup, and the right side is the makeup effect picture 8 hours after makeup.

[0026] Figure 7 These are the makeup effect pictures of the optical brightening and powder-free foundation makeup of Example 3 before and 8 hours after makeup. The left side of the picture is the makeup effect picture before makeup, and the right side is the makeup effect picture 8 hours after makeup.

[0027] Figure 8 These are the makeup effect pictures of the optical brightening and powder-free foundation makeup of comparative example 4 before and 8 hours after makeup. The left side of the picture is the makeup effect picture before makeup, and the right side is the makeup effect picture 8 hours after makeup.

[0028] Fig. 9 These are the makeup effect pictures of the optical brightening and powder-free foundation of Example 5 before and 8 hours after makeup. The left side of the picture is the makeup effect picture before makeup, and the right side is the makeup effect picture 8 hours after makeup.

[0029] Fig.10 These are the makeup effect pictures of the optical brightening and powder-free foundation of Example 6 before and 8 hours after makeup. The left side of the picture is the makeup effect picture before makeup, and the right side is the makeup effect picture 8 hours after makeup. DETAILED DESCRIPTION

[0030] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0031] For simplicity, this application only explicitly discloses some numerical ranges. However, any lower limit can be combined with any upper limit to form an unclearly recorded range; and any lower limit can be combined with other lower limits to form an unclearly recorded range, and any upper limit can be combined with any other upper limit to form an unclearly recorded range. In addition, although not clearly recorded, each point or single value between the range endpoints is included in the range. Thus, each point or single value can be combined with any other point or single value as its own lower limit or upper limit or with other lower limits or upper limits to form an unclearly recorded range.

[0032] The above-mentioned inventive content of the present application is not intended to describe each disclosed embodiment or each implementation in the present application. The following description more specifically illustrates an exemplary embodiment. In many places throughout the application, guidance is provided by a series of embodiments, which can be used in various combinations. In each example, the enumeration is only a representative group and should not be interpreted as exhaustive. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] Base makeup, such as foundation, is an important part of makeup. Its main function is to cover facial blemishes, brighten skin tone, and give skin a delicate and radiant feel. Liquid foundation, as a common type of foundation, is moist and light, easy to apply, close to the skin, lasting, delicate and brightening, and is a base makeup cosmetic favored by consumers today. Consumers now tend to require base makeup products with high concealing power but clear, natural and powder-free makeup, and a certain glossiness. However, most liquid foundations on the market have problems such as heavy powdery feeling, poor adhesion, and poor glossiness, which leads to floating powder and mottled makeup.

[0034] Based on the above problems, a specific embodiment of the present application provides an optical skin-lightening composition, which, through optical theory, makes the reflected light more concentrated, thereby ensuring the glossy effect of makeup while achieving a long-lasting makeup effect that sticks to the skin.

[0035] In a first aspect, an optical skin lightening composition comprises: a composite oil and a composite colorant, wherein the average particle size of the composite colorant is 0.2 μm to 0.4 μm, for example, it can be 0.2 μm, 0.25 μm, 0.3 μm, 0.35 μm, 0.4 μm, or within the range formed by any two of the above values; the composite oil comprises four or more of cyclopentasiloxane, methyl polydimethylsiloxane, octyl polydimethylsiloxane, diphenylsiloxyphenyl polytrimethylsiloxane, phenyl polytrimethylsiloxane, C15-19 alkane, polydimethylsiloxane, isododecane and tridecyl trimellitate; the refractive index of cyclopentasiloxane at 25° C. is 1.38 to 1.4, for example, it can be 1 .38, 1.382, 1.385, 1.387, 1.39, 1.392, 1.394, 1.396, 1.398, 1.4, or within the range of any two of the above values; and or, the refractive index of methyl polydimethylsiloxane at 25°C is 1.38-1.4, for example, it can be 1.38, 1.382, 1.385, 1.387, 1.39, 1.392, 1.394, 1.396, 1.398, 1.4, or within the range of any two of the above values; and or, the refractive index of octyl polydimethylsiloxane at 25°C is 1.42-1.43, for example, it can be 1.42, 1.421, 1.422, 1.423, 1.424, 1.425, 1.426, 1.427, 1.428, 1.429, 1.43, or within the range of any two of the above values; and or, the refractive index of diphenylsiloxyphenyl trimethicone at 25°C is 1.49-1.5, for example, 1.49, 1.491, 1.492, 1.493, 1.494, 1.495, 1.496, 1.497, 1.498, 1.499, 1.5, or within the range of any two of the above values; and or, the refractive index of phenyl trimethicone at 25°C is 1.46-1.47, for example, 1.46, 1.461, 1.462, 1.463 , 1.464, 1.465, 1.466, 1.467, 1.468, 1.469, 1.47, or within the range formed by any two of the above values; and / or, the refractive index of C15-19 alkane at 25°C is 1.43 to 1.44, for example, it can be 1.43, 1.431, 1.432, 1.433, 1.434, 1.435, 1.436, 1.437, 1.438, 1.439, 1.44, or within the range formed by any two of the above values; and / or, the refractive index of the polydimethylsiloxane at 25°C is 1.39 to 1.4, for example, it can be 1.39, 1.391, 1.392, 1.393, 1.394, 1.395395, 1.396, 1.397, 1.398, 1.399, 1.4, or within the range of any two of the above values; and / or, the refractive index of isododecane at 25° C. is 1.42 to 1.43, for example, 1.42, 1.421, 1.422, 1.423, 1.424, 1.425, 1.426, 1.427, 1.428, 1.429, 1 .43, or within the range formed by any two of the above values; and / or, the refractive index of the tridecyl trimellitate at 25°C is 1.48-1.49, for example, 1.48, 1.481, 1.482, 1.483, 1.484, 1.485, 1.486, 1.487, 1.488, 1.489, 1.49, or within the range formed by any two of the above values. .

[0036] When light is incident from one medium into another medium, in addition to a part of the light being reflected back into the first medium, the other part enters the second medium and changes the propagation direction. This phenomenon is called the refraction of light. Therefore, the higher the light refractive index of the oil, the stronger the ability to refract the incident light, and the brighter the surface of the oil. The common emulsified type of liquid foundation is an oil-in-water system, so the selection of external phase oil is extremely important. Generally speaking, the larger the molecular weight of the fatty acid in the oil, the higher the degree of unsaturation, and the greater its refractive index. The inventors found that by compounding oils with different light refractive indices and adjusting the average particle size of the composite colorant (0.2μm to 0.4μm), the two work together to make the reflected light more concentrated, ensuring the gloss of the makeup while achieving a makeup effect that lasts and sticks to the skin. The optical skin lightening composition in this application is suitable for beauty products such as emulsified system water, milk, cream, essence, and facial mask, such as liquid foundation, air cushion, bb cream, concealer, concealer and other facial base makeup systems.

[0037] In some specific embodiments, the mass ratio of the composite oil and the composite colorant is (1.4-2):1, for example, it can be 1.4:1, 1.5:1, 1.6:1, 1.7:1, 1.8:1, 1.9:1, 2.0:1, or within the range of any two of the above values.

[0038] In some specific embodiments, the mass ratios of cyclopentasiloxane, methyl dimethicone, octyl dimethicone, diphenylsiloxyphenyl trimethicone, phenyl trimethicone, C15-19 alkane, dimethicone, isododecane and tridecyl trimellitate are: (0-7):(0-3):(1.5-7):(0-4):(0-1.5):1:(0-1):(0-0.4):(0-0.2).

[0039] In some specific embodiments, the refractive index of the composite grease at 25° C. is 1.38-1.50, for example, 1.38, 1.40, 1.42, 1.45, 1.48, 1.50, or within the range of any two of the above values.

[0040] In the above specific implementation manner, the present application adjusts the light refractive index of the composite oil to make the reflected light more concentrated, thereby achieving a skin lightening effect.

[0041] In some specific embodiments, the composite colorant includes a first colorant component and a second colorant component, and the mass ratio of the first colorant component to the second colorant component is 1:(1.5-4), for example, it can be 1:1.5, 1:2, 1:2.5, 1:3, 1:3.5, 1:4, or within the range of any two of the above values.

[0042] In the above specific embodiments, the optical skin lightening composition of the present application forms a smooth covering layer on the surface by adjusting the mass ratio of different colorants, covering pores, acne marks, etc., making the skin look even and delicate, increasing the smoothness of the face, and leaving the optical refractive index of the composite oil unaffected.

[0043] In some specific embodiments, the first colorant component is nano titanium dioxide, and the average particle size of the nano titanium dioxide is 0.14 μm to 0.19 μm. The second colorant component is titanium dioxide, and the average particle size of the titanium dioxide is 0.2 μm to 0.96 μm. For example, the titanium dioxide can be CI 77891.

[0044] In the above specific embodiments, the factors affecting the covering power of titanium dioxide include absorption, reflection, refraction, scattering and diffraction of light. Taking the above optical properties of titanium dioxide into consideration, improving the absorption, reflection, refraction and scattering of light by titanium dioxide particles is conducive to enhancing the covering power of titanium dioxide, while diffraction will weaken the covering power of titanium dioxide. Therefore, diffraction should be avoided as much as possible, and the absorption, reflection, refraction and scattering of light by titanium dioxide should be maximized. The present application uses titanium dioxide with two different average particle sizes, namely ordinary titanium dioxide (average particle size of 0.2μm to 0.96μm) and nano titanium dioxide (average particle size of 0.14μm to 0.19μm), to obtain a high scattering ability of titanium dioxide to light, which can form a smooth and uniformly reflecting covering layer on the skin surface, increase the smoothness of the face, make the light refractive index of oil unaffected, and make it easier to reflect the light of the composite oil, while improving the concealing ability, and making the makeup feel clearer and powder-free.

[0045] In a second aspect, an optical skin-lightening and powder-free foundation is provided, which comprises the following components, measured in percentage by mass: 23wt% to 32wt% of the optical skin-lightening composition of the first aspect; 3wt% to 6wt% of emulsifier; 4wt% to 7wt% of film-forming agent; 1wt% to 4wt% of filler powder; 10wt% to 15wt% of polyol; 0.8wt% to 1.2wt% of inorganic salt; 0.7wt% to 1.0wt% of preservative; and the remainder of water.

[0046] In some specific embodiments, the emulsifier is one or more of PEG-10 dimethicone, lauryl PEG-10 tris(trimethylsiloxy)silylethyl dimethicone, sorbitan sesquioleate, PEG-9 polydimethylsiloxyethyl dimethicone, lauryl PEG-9 polydimethylsiloxyethyl dimethicone, cetyl PEG / PPG-10 / 1 dimethicone, and polyglyceryl-4 isostearate.

[0047] In some specific embodiments, the film former is an acrylate / polytrimethylsiloxane methacrylate copolymer, trimethylsiloxysilicate, an acrylate / polydimethylsiloxane copolymer, or polymethylsilsesquioxane.

[0048] In some specific embodiments, the filling powder includes one or more of polydimethylsiloxane / vinyl polydimethylsiloxane crosspolymer, mica, polydimethylsiloxane crosspolymer and boron nitride (BN), for example, the mica can be synthetic fluorphlogopite; and / or, the polyol includes one or more of glycerol, 1,2-hexanediol, 1,3-propylene glycol, 1,2-pentanediol and dipropylene glycol; and / or, the inorganic salt includes magnesium sulfate and / or sodium chloride; and / or, the preservative includes one or more of phenoxyethanol, ethylhexylglycerin, sodium benzoate, p-hydroxyacetophenone and caprylhydroxamic acid.

[0049] In this specific embodiment, the optical skin-brightening and powder-free base makeup flaky mica powder and spherical colorant are combined. The soft, glutinous and silky flaky mica powder has a matte finish and extends closely to the skin. It is matched with the microsphere powder, which has a soft focus, covers fine lines and has a velvety touch.

[0050] Compared with the prior art, the optically brightening powder-free foundation provided in the embodiments of the present application can effectively improve the glossiness and makeup lasting effect after use, and effectively improve the problem of powder floating and makeup coming off in existing products.

[0051] In addition, the term "and / or" in this article is only a description of the association relationship between the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0052] It should be understood that in the embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0053] Example

[0054] The following examples more specifically describe the disclosure of the present application, which are intended for illustrative purposes only, as it will be apparent to those skilled in the art that various modifications and variations are possible within the scope of the disclosure of the present application. Unless otherwise stated, all parts, percentages, and ratios reported in the following examples are by weight, and all reagents used in the examples are commercially available or synthesized according to conventional methods and can be used directly without further processing, and the instruments used in the examples are commercially available.

[0055] In the subsequent specific embodiments, the refractive index of cyclopentasiloxane at 25°C is 1.396, the refractive index of methyl polydimethylsiloxane at 25°C is 1.387, the refractive index of octyl polydimethylsiloxane at 25°C is 1.425, the refractive index of diphenylsiloxyphenyl trimethicone at 25°C is 1.498, the refractive index of phenyl trimethicone at 25°C is 1.461, the refractive index of C15-19 alkane at 25°C is 1.433, the refractive index of polydimethylsiloxane at 25°C is 1.39, the refractive index of isododecane at 25°C is 1.42, the refractive index of tridecyl trimellitate at 25°C is 1.48, the refractive index of pentaerythritol tetra(ethylhexanoate) at 25°C is 1.45, and the refractive index of bis-diglycerol polyacyl adipate-2 at 25°C is 1.39.

[0056] Example 1

[0057] An optical skin-lightening powder-free foundation comprises, by weight percentage, 24 wt% of an optical skin-lightening composition, 3.5 wt% of an emulsifier, 4.6 wt% of a film-forming agent, 1 wt% of a filler powder, 10 wt% of a polyol, 0.8 wt% of an inorganic salt, 0.9 wt% of a preservative and the balance of water.

[0058] Wherein, based on the mass of the optically brightening and powder-free base makeup being 100%, the optically brightening and powder-free base makeup comprises 16wt% of a composite oil and 8wt% of a composite colorant. The composite oil comprises 3.0wt% of cyclopentasiloxane, 3.0wt% of methyl dimethicone, 5.0wt% of octyl dimethicone, 1.5wt% of diphenylsiloxyphenyl trimethicone, 0.5wt% of phenyl trimethicone and 3.0wt% of C15-19 alkane. The average particle size of the composite colorant is 0.39μm, and the composite colorant comprises 2.03wt% of nano titanium dioxide with an average particle size of 0.18μm and 4.29wt% of CI 77891 with an average particle size of 0.46μm, as well as 1.3wt% of CI 77492, 0.37wt% of CI 77491 and 0.01 w t%CI 77499.

[0059] In this embodiment, the emulsifier includes 2.0 wt % of PEG-10 dimethicone, 1.0 wt % of lauryl PEG-10 tris(trimethylsiloxy)silylethyl dimethicone, and 0.5 wt % of sorbitan sesquioleate.

[0060] The film former included 2.0 wt% of acrylates / polytrimethylsiloxane methacrylate copolymer and 2.6 wt% of trimethylsiloxysilicate.

[0061] The filler powder includes 0.5 wt% of polydimethylsiloxane / vinyl polydimethylsiloxane crosspolymer and 0.5 w t% mica.

[0062] The polyols included 9.0 wt% glycerol and 1.0 wt% 1,2 hexanediol.

[0063] The inorganic salt is magnesium sulfate and the preservative is phenoxyethanol.

[0064] Embodiment 2-7

[0065] The difference between Examples 2-7 and Example 1 is that the components and contents are different, as shown in Table 1 for details.

[0066] Comparative Examples 1-7

[0067] The difference between Comparative Examples 1-7 and Example 1 is that the components and contents are different, as shown in Table 1 for details.

[0068] Test Section

[0069] (1) Glossiness

[0070] Test method: The subject uses the product on the whole face. Before the subject uses the product and at 0h and 8h after using the product, the skin gloss tester Skin-Glossymeter GL200 and the corresponding software are used for operation and analysis. The subjects live a normal life with makeup on during the entire test process. The subjects need to sit quietly in a constant temperature and humidity room with a temperature of 21±1°C and a relative humidity of 50±10% for 20 minutes each time they return to the test. The test results of each embodiment and comparative example are shown in Table 2. It can be seen from the results in Table 2 that the addition amount of oils with different light refractive indices in this application has a greater effect on the skin gloss. Only by using the oil selection of this application can better results be achieved. Replacing or changing its amount will cause a decrease in gloss.

[0071] (2) Long-lasting makeup effect

[0072] Test method: The subject uses the product on the whole face. Before the subject uses the product and at 0h and 8h after using the product, the subject's facial image is taken. The ITA° of different time periods before and after using the product is analyzed by the built-in software of Antera 3D. ITA° is a parameter that characterizes the color of human skin by measuring the L*a*b* color space data of the skin. The larger the ITA°, the lighter the skin color, and vice versa, the darker the skin color. At the same time, the VISIA 7 facial image analysis instrument takes pictures and records. During the entire test process, the subject lives a normal life with makeup. Each time the subject visits, he needs to sit in a constant temperature and humidity room with a temperature of 21±1℃ and a relative humidity of 50±10% for 20 minutes to calculate the makeup holding rate. The results of each embodiment and comparative example are detailed in Table 3. It can be seen from Table 3 that in this application, the ratio of composite oil to composite colorant and the content of nano-scale titanium dioxide and ordinary titanium dioxide added have a great influence on the product's makeup holding effect. Adjusting the ratio of composite oil to composite colorant and adding an appropriate ratio of nano-scale titanium dioxide and ordinary titanium dioxide can improve the product's powder floating and makeup removal. The formula for calculating the makeup lasting rate in this application is: makeup lasting rate = (|A-A2|) / (|A-A1|)×100%. Among them, A is the ITA° value before using the product, A1 is the ITA° value immediately after using the product, and A2 is the ITA° value after using the product for 4 hours or 8 hours. A makeup lasting rate value greater than 50% means that the product can last for 8 hours.

[0073] (3) Makeup effect test

[0074] The makeup effects of Examples 1-4 and Comparative Examples 1-8 are detailed in Figure 1-Figure 10 ,Depend on Figure 1-Figure 10It can be seen that in this application, the content of nano-scale titanium dioxide and ordinary titanium dioxide added and the ratio of composite oil to composite colorant have a great influence on the product's makeup lasting effect and the subsequent makeup effect of the product. By adjusting the ratio of composite oil to composite colorant and adding nano-scale titanium dioxide and ordinary titanium dioxide in appropriate proportions and particle sizes, a certain degree of concealing can be achieved, while the makeup feels light and transparent, which can improve the product's powder floating and makeup removal.

[0075]

[0076]

[0077]

[0078]

[0079]

[0080]

[0081]

[0082]

[0083]

[0084]

[0085] Table 2 Gloss effect

[0086] Glossiness before use Glossiness after 8 hours of use Glossiness change value Example 1 4.83 6.74 1.91 Example 2 4.89 6.95 2.06 Example 3 5.13 7.09 1.96 Example 4 5.03 6.87 1.84 Example 5 5.06 6.89 1.83 Example 6 5.11 6.83 1.72 Example 7 4.97 6.69 1.72 Comparative Example 1 4.86 5.31 0.45 Comparative Example 4 4.79 5.78 0.99 Comparative Example 5 5.16 5.96 0.8 Comparative Example 6 5.14 6.03 0.89 Comparative Example 7 4.76 5.69 0.93

[0087] Table 3: Long-lasting makeup effect

[0088]

[0089]

[0090] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An optical skin lightening composition, characterized in that: include: Composite oil and composite colorant, wherein the average particle size of the composite colorant is 0.2 μm to 0.4 μm; The composite oil comprises four or more of cyclopentasiloxane, methyl dimethicone, octyl dimethicone, diphenylsiloxyphenyl trimethicone, phenyl trimethicone, C15-19 alkane, dimethicone, isododecane and tridecanol trimellitate; The optical refractive index of the cyclopentasiloxane at 25° C. is 1.38 to 1.4; And / or, the optical refractive index of the methyl polydimethylsiloxane at 25° C. is 1.38 to 1.4; And / or, the optical refractive index of the octyl polydimethylsiloxane at 25° C. is 1.42 to 1.43; and / or, the refractive index of the diphenylsiloxyphenyl polytrimethylsiloxane at 25° C. is 1.49 to 1.5; And / or, the refractive index of the phenyl polytrimethylsiloxane at 25° C. is 1.46 to 1.47; and / or, the C15-19 alkane has a refractive index of 1.43 to 1.44 at 25°C; And / or, the optical refractive index of the polydimethylsiloxane at 25° C. is 1.39 to 1.4; And / or, the refractive index of isododecane at 25° C. is 1.42 to 1.43; And / or, the refractive index of the tridecyl trimellitate at 25° C. is 1.48 to 1.

49.

2. The optical skin lightening composition according to claim 1, characterized in that The mass ratio of the composite oil to the composite colorant is (1.4-2):

1.

3. The optical skin lightening composition according to claim 1, characterized in that The mass ratios of the cyclopentasiloxane, methyl dimethicone, octyl dimethicone, diphenylsiloxyphenyl trimethicone, phenyl trimethicone, C15-19 alkane, dimethicone, isododecane and tridecyl trimellitate are: (0-7): (0-3): (1.5-7): (0-4): (0-1.5): 1: (0-1): (0-0.4): (0-0.2).

4. The optical skin lightening composition according to claim 1, characterized in that The optical refractive index of the composite grease at 25° C. is 1.38-1.

5.

5. The optical skin lightening composition according to claim 1, characterized in that The composite colorant comprises a first colorant component and a second colorant component, and the mass ratio of the first colorant component to the second colorant component is 1:(1.5-4).

6. The optical skin lightening composition according to claim 5, characterized in that The first colorant component is nano titanium dioxide, and the average particle size of the nano titanium dioxide is 0.14 μm to 0.19 μm. The second colorant component is titanium dioxide, and the average particle size of the titanium dioxide is 0.2 μm to 0.96 μm.

7. An optical skin-lightening powder-free makeup base, characterized in that: The invention comprises the following components in percentage by mass: 23wt% to 32wt% of the optical skin lightening composition according to any one of claims 1 to 6, 3wt% to 6wt% of an emulsifier, 4wt% to 7wt% of a film former, 1wt% to 4wt% of a filler powder, 10wt% to 15wt% of a polyol, 0.8wt% to 1.2wt% of an inorganic salt, 0.7wt% to 1.0wt% of a preservative, and the balance of water.

8. The optical skin-lightening powder-free makeup base according to claim 7, characterized in that: The emulsifier includes one or more of PEG-10 polydimethylsiloxane, lauryl PEG-10 tri(trimethylsiloxy)silylethyl polydimethylsiloxane, sorbitan sesquioleate, PEG-9 polydimethylsiloxyethyl polydimethylsiloxane, lauryl PEG-9 polydimethylsiloxyethyl polydimethylsiloxane, cetyl PEG / PPG-10 / 1 polydimethylsiloxane, and polyglyceryl-4 isostearate.

9. The optical skin lightening powder-free makeup base according to claim 7, characterized in that: The film former includes one or more of acrylates / polytrimethylsiloxane methacrylate copolymers, trimethylsiloxysilicate, acrylates / polydimethylsiloxane copolymers and polymethylsilsesquioxane.

10. The optical skin-lightening powder-free makeup base according to claim 7, characterized in that: The filling powder includes one or more of polydimethylsiloxane / vinyl polydimethylsiloxane cross-linked polymer, mica, polydimethylsiloxane cross-linked polymer and boron nitride; And / or, the polyol includes one or more of glycerol, 1,2-hexanediol, 1,3-propylene glycol, 1,2-pentanediol and dipropylene glycol; And / or, the inorganic salt includes magnesium sulfate and / or sodium chloride; And / or, the preservative includes one or more of phenoxyethanol, ethylhexylglycerin, sodium benzoate, p-hydroxyacetophenone and caprylhydroxamic acid.

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