Sunscreen liquid foundation and preparation method thereof

Abstract

The invention provides a sunscreen liquid foundation and a preparation method thereof. The sunscreen liquid foundation is prepared from the following components in parts by weight: 2 parts of a filling powder vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer, 1 part of a thickening agent, 1 part of a thickening agent, 1 part of a thickening agent and 1 part of a thickening agent; based on 2 parts of the filling powder vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer as a reference, 0.2 to 1 part of physical sunscreen powder; 2-6 parts of a chemical sunscreen composition; 5 to 15 parts of a biological sunscreen composition; the biological sunscreen composition comprises an extract obtained by mixed fermentation of cynanchum atratum, leontopodium alpinum and haematococcus pluvialis. And 22-47 parts of other components. The sunscreen liquid foundation has a sunscreen effect, is easy to smear and is mild to skin.

Description

Technical Field

[0001] The present application belongs to the technical field of cosmetics, and specifically relates to a sunscreen liquid foundation and a preparation method thereof. Background Art

[0002] With growing health awareness, consumers' demand for sun protection is no longer limited to traditional sunscreens, but is gradually expanding to more everyday cosmetics, such as liquid foundation. Sun protection is not just a summer need; it's a year-round concern, further driving market demand for sunscreen liquid foundation. Sunscreen liquid foundation is a cosmetic product that incorporates sunscreen into liquid foundation. It not only beautifies the skin but also provides a protective barrier, effectively blocking or absorbing UV rays and reducing their harmful effects.

[0003] Common sunscreens can be divided into physical and chemical sunscreens based on their specific ingredients. Physical sunscreens, such as nano-titanium dioxide and nano-zinc oxide, primarily achieve their protection by reflecting and scattering UV rays. However, physical sunscreens are typically thick and difficult to apply evenly. They also lack breathability and are difficult to wash off with water, requiring a makeup remover for thorough removal. Chemical sunscreens achieve their protection by absorbing UV rays, but their protection is limited, requiring frequent reapplying for long-lasting protection. Some chemical sunscreen ingredients may irritate the skin or trigger allergic reactions. Summary of the Invention

[0004] The present application provides a sunscreen liquid foundation and a preparation method thereof, which aim to improve the sun protection effect of the sunscreen liquid foundation while being easy to apply and gentle on the skin.

[0005] In a first aspect, the present application provides a sunscreen liquid foundation, which comprises the following components in parts by weight:

[0006] Filler Powder Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer, 2 parts; and each based on 2 parts Filler Powder Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer:

[0007] Physical sunscreen powder, 0.2-1 parts; chemical sunscreen composition, 2-6 parts;

[0008] Biological sunscreen composition, 5-15 parts; the biological sunscreen composition comprises a mixed fermentation extract of white osmanthus, alpine edelweiss and Haematococcus pluvialis; other ingredients, 22-47 parts.

[0009] In a feasible embodiment of the first aspect of the present application, the biological sunscreen composition includes a mixed fermentation extract of white osmanthus, alpine edelweiss and haematococcus pluvialis in a mass ratio of 1:(0.6~15):(1~20), and the optional mass ratio is 1:(2~12):(2~8).

[0010] In a feasible embodiment of the first aspect of the present application, the mass ratio of the physical sunscreen powder, the chemical sunscreen composition and the biological sunscreen composition in the sunscreen liquid foundation is 1:(7.5-17):(20-50).

[0011] In a feasible embodiment of the first aspect of the present application, the sum of the masses of the physical sunscreen powder, the chemical sunscreen composition and the biological sunscreen composition accounts for 5% to 18% of the total mass of the sunscreen liquid foundation.

[0012] In a feasible embodiment of the first aspect of the present application, the mass percentage of the biological sunscreen composition in the sunscreen liquid foundation is 5% to 12%.

[0013] In a feasible embodiment of the first aspect of the present application, the ratio of the mass of the filler powder vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosslinked polymer to the total mass of the physical sunscreen powder, the chemical sunscreen composition and the biological sunscreen composition is 1:(4.5-8.7).

[0014] In a feasible embodiment of the first aspect of the present application, the sunscreen liquid foundation satisfies at least one of the following conditions:

[0015] a. Physical sunscreen powders include one or more of nano titanium dioxide and zinc oxide;

[0016] b. A chemical sunscreen composition comprising one or more of ethylhexyl methoxycinnamate, diethylamino hydroxybenzoyl hexyl benzoate, ethylhexyl salicylate, bis-ethylhexyloxyphenol methoxyphenyl triazine and phenylbenzimidazole sulfonic acid;

[0017] c. Other ingredients include one or more of emulsifiers, oils, film formers, polyols, colorants and preservatives.

[0018] In a feasible embodiment of the first aspect of the present application, the sunscreen liquid foundation comprises the following components in parts by weight:

[0019] Filler Powder Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer, 2 parts; and each based on 2 parts Filler Powder Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer:

[0020] Physical sunscreen powder, 0.2-0.4 parts; chemical sunscreen composition, 3-5 parts; biological sunscreen composition, 8-12 parts; the biological sunscreen composition includes a mixed fermentation extract of white osmanthus, alpine edelweiss and Haematococcus pluvialis; other ingredients, 24-43 parts.

[0021] In a feasible embodiment of the first aspect of the present application, the sunscreen liquid foundation comprises the following components in parts by weight:

[0022] Filler Powder Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer, 2 parts; and each based on 2 parts Filler Powder Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer:

[0023] Physical sunscreen powder, 0.2-1 parts; chemical sunscreen composition, 2-6 parts; biological sunscreen composition, 5-15 parts; the biological sunscreen composition includes a mixed fermentation extract of white osmanthus, alpine edelweiss and Haematococcus pluvialis; emulsifier, 1-6 parts; oil, 15-25 parts; film-forming agent, 3-8 parts; polyol 3-8 parts.

[0024] In a feasible embodiment of the first aspect of the present application, the sunscreen liquid foundation satisfies at least one of the following conditions:

[0025] d. Emulsifiers include one or more of polyglyceryl-3 diisostearate, PEG-30 dipolyhydroxystearate, and lauryl PEG-9 polydimethylsiloxyethyl dimethicone;

[0026] e. oils and fats including one or more of dicaprylyl carbonate, diisopropyl sebacate and isododecane;

[0027] f. a film-forming agent comprising one or a combination of trimethylsiloxysilicate and polymethylsilsesquioxane;

[0028] g. polyols including one or more of glycerol, 1,2-pentanediol and 1,2-hexanediol;

[0029] h. Colorants include one or more of CI 77891, CI 77499, CI 77492 and CI 77491;

[0030] i. Preservatives include one or more of phenoxyethanol, p-hydroxyacetophenone, caprylyl glycol and ethylhexylglycerin.

[0031] A second aspect of the present application provides a method for preparing a sunscreen liquid foundation, comprising:

[0032] The filler powder vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer, physical sunscreen powder, chemical sunscreen composition and other ingredients are mixed, the biological sunscreen composition is added, and the mixture is stirred and homogenized to obtain a sunscreen liquid foundation.

[0033] In a feasible embodiment of the second aspect of the present application, the preparation of the biological sunscreen composition includes:

[0034] drying and crushing the white osmanthus, alpine edelweiss and haematococcus pluvialis to obtain a mixture powder of the white osmanthus, alpine edelweiss and haematococcus pluvialis;

[0035] Dissolving Bifidobacterium animalis subsp. lactis in Sabouraud glucose liquid medium to obtain a bacterial suspension; inoculating the bacterial suspension into the culture medium for activation to obtain lactic acid bacteria fermentation seed bacteria;

[0036] Dissolving red yeast in Sabouraud glucose liquid medium to obtain a bacterial suspension; inoculating the bacterial suspension into the medium for activation to obtain yeast fermentation seed bacteria;

[0037] The mixture powder of white mulberry, alpine edelweiss and Haematococcus pluvialis is placed in a fermentation tank, and lactic acid bacteria fermentation seed bacteria and enzyme powder are added, wherein the enzyme powder is a composite enzyme powder of cellulase and pectinase, and fermentation is carried out to obtain a first fermentation liquid;

[0038] Yeast fermentation seed bacteria are introduced into the first fermentation liquid to carry out fermentation to obtain a second fermentation liquid; and the second fermentation liquid is post-treated to obtain a biological sunscreen composition.

[0039] The sunscreen foundation of the present application includes a filler powder vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-polymer, as well as a sunscreen active ingredient composed of a physical sunscreen powder, a chemical sunscreen composition and a biological sunscreen composition, wherein the biological sunscreen composition includes a mixed fermentation extract of white osmanthus, alpine edelweiss and haematococcus pluvialis. The inventors found that compared with ordinary non-fermented plant extracts, such as extracts obtained by soaking in water, the present application can open the cell walls of white osmanthus, alpine edelweiss and haematococcus pluvialis through fermentation, release more active substances, and obtain a low-viscosity, low-molecular-weight mixed fermentation extract of white osmanthus, alpine edelweiss and haematococcus pluvialis, for example, with a viscosity of 40 cP.s to 50 cP.s, which is more active and mild, better promotes the connection and synergistic effect between different sunscreen mechanisms, blocks the free radical chain reaction caused by ultraviolet rays, indirectly enhances the skin's resistance to ultraviolet rays, and promotes a comprehensive upgrade of sunscreen effectiveness. It can block UVA / UVB in all bands, and has good environmental protection and biocompatibility, and is mild and non-irritating.

[0040] Furthermore, the present application selects physical sunscreen powders and chemical sunscreen compositions in combination with the above-mentioned biological sunscreen agents of the present application to improve the problem of reduced sunscreen effect after application of the product and the need for multiple touch-ups, thereby comprehensively improving the sunscreen effect.

[0041] Furthermore, the sunscreen liquid foundation of the present application has high sun protection efficacy, is easy to apply, has good cosmetic modification and pore concealing effects, and provides a natural and long-lasting makeup look, making it a sunscreen liquid foundation with excellent comprehensive performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a test chart of the ultraviolet absorption capacity of the biological sunscreen composition of Example 2;

[0043] Figure 2It is a sample smear identification diagram of biological sunscreen composition with different mass percentages;

[0044] Figure 3 This is a test result chart of the ultraviolet absorption ability test of subject 1;

[0045] Figure 4 This is a test result chart of the ultraviolet absorption ability test of subject 2;

[0046] Figure 5 This is a test result chart of the ultraviolet absorption ability test of subject 3;

[0047] Figure 6 This is a diagram showing the biological sunscreen composition of Example 1. DETAILED DESCRIPTION

[0048] In order to make the invention purpose, technical solution and beneficial technical effect of this application clearer, this application is further described in detail with reference to the following embodiments. It should be understood that the embodiments described in this specification are only for explaining this application and are not intended to limit this application.

[0049] For simplicity, only some numerical ranges are explicitly disclosed herein. However, any lower limit can be combined with any upper limit to form an unspecified range; and any lower limit can be combined with other lower limits to form an unspecified range, and similarly, any upper limit can be combined with any other upper limit to form an unspecified range. In addition, although not explicitly stated, each point or individual value between the endpoints of a range is included in the range. Thus, each point or individual value can serve as its own lower limit or upper limit and be combined with any other point or individual value, or with other lower limits or upper limits, to form an unspecified range.

[0050] In the description herein, when a composition is described as containing, comprising or including specific components, or when a process is described as containing, comprising or including specific process steps, it is intended that the composition of the present application also consists essentially of or consists of the components, and the process of the present application also consists essentially of or consists of the process steps.

[0051] The use of the terms "including," "comprising," "containing," and "having" should generally be construed as open ended and non-limiting unless expressly stated otherwise.

[0052] In the description of this article, it should be noted that, unless otherwise specified, “above” and “below” are inclusive of the number themselves, and “a variety” in “one or more” means more than two.

[0053] The above summary of the invention of this application is not intended to describe every disclosed embodiment or every implementation in this application. The following description more specifically illustrates exemplary embodiments. In many places throughout the application, guidance is provided by a series of examples, which can be used in various combinations. In each example, the enumeration is intended only as a representative group and should not be construed as exhaustive.

[0054] Ethylhexyl methoxycinnamate and nano-titanium dioxide are common sunscreen ingredients, but ethylhexyl methoxycinnamate's sunscreen effectiveness is limited and it can easily cause skin sensitivity, redness, stinging, and itching, requiring strict control over its dosage. Stabilizers or antioxidants can also be added to sunscreen formulations to improve their photostability, but their effectiveness as part of a foundation is difficult to verify, and due to the large number of chemical ingredients involved, their safety cannot be guaranteed.

[0055] In view of this, the inventors have conducted a lot of experimental research and demonstration, and provided a sunscreen liquid foundation and a preparation method thereof in this application, aiming to improve the sun protection effect of the sunscreen liquid foundation while being gentle and non-irritating.

[0056] Biological sunscreens are biologically derived ingredients that offer some protection against UV rays. They primarily protect the skin from UV damage indirectly. Specifically, biological sunscreens do not directly absorb or reflect UV rays, but instead reduce UV damage to the skin through other mechanisms. Biological sunscreens are typically derived from plant extracts, fermentation products, or bioengineered technologies. As consumers' expectations for sunscreen products grow, they prioritize product safety and effectiveness. Therefore, the development of a biological sunscreen foundation is a market need.

[0057] The addition of biological sunscreens, physical sunscreens and chemical sunscreens to the liquid foundation of the present application can not only absorb ultraviolet rays in the 200-400nm range, effectively alleviating problems such as skin redness and sunburn, but also the addition of biological sunscreens can effectively alleviate the irritation of the physical and chemical sunscreens in the formula to the skin.

[0058] In an embodiment of the first aspect of the present application, a sunscreen liquid foundation is provided, which comprises the following components in parts by weight:

[0059] Filler Powder Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer, 2 parts; and each based on 2 parts Filler Powder Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer:

[0060] Physical sunscreen powder, 0.2-1 parts; chemical sunscreen composition, 2-6 parts; biological sunscreen composition, 5-15 parts; the biological sunscreen composition includes a mixed fermentation extract of white osmanthus, alpine edelweiss and Haematococcus pluvialis; other ingredients, 22-47 parts.

[0061] The sunscreen foundation of the present application includes a filler powder vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-polymer, as well as a sunscreen active ingredient composed of a physical sunscreen powder, a chemical sunscreen composition and a biological sunscreen composition, wherein the biological sunscreen composition includes a mixed fermentation extract of white osmanthus, alpine edelweiss and haematococcus pluvialis. The inventors found that compared with ordinary non-fermented plant extracts, such as extracts obtained by soaking in water, the present application can open the cell walls of white osmanthus, alpine edelweiss and haematococcus pluvialis through fermentation, release more active substances, and obtain a low-viscosity, low-molecular-weight mixed fermentation extract of white osmanthus, alpine edelweiss and haematococcus pluvialis, for example, with a viscosity of 40 cP.s to 50 cP.s, which is more active and mild, better promotes the connection and synergistic effect between different sunscreen mechanisms, blocks the free radical chain reaction caused by ultraviolet rays, indirectly enhances the skin's resistance to ultraviolet rays, and promotes a comprehensive upgrade of sunscreen effectiveness. It can block UVA / UVB in all bands, and has good environmental protection and biocompatibility, and is mild and non-irritating.

[0062] Furthermore, the present application selects physical sunscreen powders and chemical sunscreen compositions in combination with the above-mentioned biological sunscreen agents of the present application to improve the problem of reduced sunscreen effect after application of the product and the need for multiple touch-ups, thereby comprehensively improving the sunscreen effect.

[0063] Furthermore, the sunscreen liquid foundation of the present application has high sun protection efficacy, is easy to apply, has good cosmetic modification and pore concealing effects, and provides a natural and long-lasting makeup look, making it a sunscreen liquid foundation with excellent comprehensive performance.

[0064] The extract of Cynanchum atratum mainly contains polysaccharides, flavonoids, saponins, alkaloids and other ingredients, and has excellent antioxidant, antibacterial and anti-inflammatory effects (see: Yang Feifei, Isolation and purification of Cynanchum atratum polysaccharides, structural analysis and biological activity research [D], Shanghai University of Traditional Chinese Medicine).

[0065] Leontopodium alpinum extract contains a variety of chemical components. The compounds isolated and obtained from it so far include flavonoids, volatile oils, sesquiterpenes, phenylpropanoids and steroids. Together, they constitute the rich pharmacological effects of Leontopodium alpinum: anti-inflammatory, antioxidant, skin soothing, treatment of various kidney diseases, etc. Leontopodium alpinum has a strong inhibitory effect on Staphylococcus aureus (see: Wu Yanwen, Research Progress on Chemical Components and Pharmacological Activities of Leontopodium Plants [J], China Journal of Traditional Chinese Medicine).

[0066] Haematococcus pluvialis (HAEMATOCOCCUS PLUVIALIS) is high in astaxanthin, a powerful antioxidant that scavenges free radicals and slows aging. Literature indicates that UV intensity affects astaxanthin content in Haematococcus pluvialis, and that appropriately increasing UV intensity can promote its synthesis, indicating that Haematococcus pluvialis possesses significant UV protection.

[0067] In some embodiments, the mass ratio of the physical sunscreen powder, the chemical sunscreen composition, and the biological sunscreen composition in the sunscreen liquid foundation is 1:(7.5-17):(20-50).

[0068] The inventors have discovered that by further regulating the mass ratio of the physical sunscreen powder, the chemical sunscreen composition, and the biological sunscreen composition within the above-mentioned range, the solid sunscreen powder particles and the liquid sunscreen powder can be mixed more evenly, have a suitable viscosity, are easy to apply, and can form a fine and uniform sunscreen coating when applied, thereby improving the sunscreen effect while still maintaining a high level of safety.

[0069] In some embodiments, the biological sunscreen composition comprises an extract of mixed fermentation of iris, leontopodium alpinum, and haematococcus pluvialis in a mass ratio of 1:(0.6-15):(1-20), and the mass ratio can be optionally 1:(2-12):(2-8). The mixed fermentation extract of iris, leontopodium alpinum, and haematococcus pluvialis in a mass ratio of 1:(0.6-15):(1-20) refers to: in the raw materials for preparing the mixed fermentation extract of iris, leontopodium alpinum, and haematococcus pluvialis, the mass ratio of iris, leontopodium alpinum, and haematococcus pluvialis is 1:(0.6-15):(1-20). Alternatively, in the raw materials for preparing the mixed fermentation extract of iris, leontopodium alpinum, and haematococcus pluvialis, the mass ratio of iris, leontopodium alpinum, and haematococcus pluvialis is 1:(2-12):(2-8).

[0070] When the mass ratio of white iris, alpine edelweiss and haematococcus pluvialis in the biological sunscreen composition is within the above range, it can better remove or reduce the intermediate products of oxygen-active groups, block the free radical chain reaction caused by ultraviolet rays, slow down tissue damage, enhance the activity of skin cells, regulate the skin's immune function, and indirectly enhance the skin's resistance to ultraviolet rays. The effect is more obvious, and the synergistic effect with physical sunscreen powders, chemical sunscreen compositions and filler powder vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosslinked polymer is better.

[0071] The inventors have discovered through experimental research that when the mass percentage of the sunscreen active ingredient or the biological sunscreen composition in the sunscreen liquid foundation is controlled within a certain range, it is beneficial to improve the sunscreen effect.

[0072] In some embodiments, the total mass of the physical sunscreen powder, the chemical sunscreen composition, and the biological sunscreen composition accounts for 5% to 18% of the total mass of the sunscreen liquid foundation.

[0073] In some embodiments, the mass percentage of the biological sunscreen composition in the sunscreen liquid foundation is 5% to 12%.

[0074] While achieving excellent sunscreen efficacy, other formulas are carefully formulated to optimize skin visual effects and long-lasting makeup. In some embodiments, the ratio of the filler powder vinyl dimethicone / methicone silsesquioxane crosspolymer mass to the total mass of the physical sunscreen powder, chemical sunscreen composition, and biological sunscreen composition is 1:(4.5-8.7).

[0075] Without intending to be bound by any theory or explanation, the inventors have discovered that when the ratio of the mass of the filler powder vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosslinked polymer to the total mass of the physical sunscreen powder, the chemical sunscreen composition, and the biological sunscreen composition is controlled within the above-mentioned range, not only is the sunscreen efficacy improved, but on this basis, the sunscreen coating formation time is shortened, the sunscreen coating has better water resistance, and can effectively fill minor blemishes on the skin surface, such as enlarged pores, so that they are visually naturally concealed. It can also greatly enhance the durability and stability of the makeup, ensuring a fresh and natural makeup look all day long.

[0076] The inventors have discovered that through the above-mentioned further limited combinations, the liquid foundation of the present application not only meets the actual needs of efficient sun protection, but also takes into account the beauty modification and concealment of pores, keeping the makeup intact and long-lasting.

[0077] In some embodiments, the physical sunscreen powder in the sunscreen liquid foundation includes one or more of nano titanium dioxide and zinc oxide.

[0078] In some embodiments, the chemical sunscreen composition in the sunscreen liquid foundation includes one or more of ethylhexyl methoxycinnamate, diethylamino hydroxybenzoyl hexyl benzoate, ethylhexyl salicylate, bis-ethylhexyloxyphenol methoxyphenyl triazine, and phenylbenzimidazole sulfonic acid.

[0079] In some embodiments, other ingredients in the sunscreen liquid foundation include one or more of an emulsifier, oil, film former, polyol, colorant, and preservative.

[0080] In some embodiments, the sunscreen liquid foundation includes the following components in parts by weight:

[0081] Filler Powder Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer, 2 parts; and each based on 2 parts Filler Powder Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer:

[0082] Physical sunscreen powder, 0.2-0.4 parts; chemical sunscreen composition, 3-5 parts; biological sunscreen composition, 8-12 parts; the biological sunscreen composition includes a mixed fermentation extract of white osmanthus, alpine edelweiss, and Haematococcus pluvialis;

[0083] Other ingredients, 24 to 43 parts.

[0084] In some embodiments, the sunscreen liquid foundation includes the following components in parts by weight:

[0085] Filler Powder Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer, 2 parts; and each based on 2 parts Filler Powder Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer:

[0086] Physical sunscreen powder, 0.2-1 parts; chemical sunscreen composition, 2-6 parts; biological sunscreen composition, 5-15 parts; the biological sunscreen composition includes a mixed fermentation extract of white osmanthus, alpine edelweiss and Haematococcus pluvialis; emulsifier, 1-6 parts; oil, 15-25 parts; film-forming agent, 3-8 parts; polyol 3-8 parts.

[0087] In some embodiments, the sunscreen liquid foundation includes the following components in parts by weight:

[0088] Filler Powder Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer, 2 parts; and each based on 2 parts Filler Powder Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer:

[0089] Physical sunscreen powder, 0.2-0.4 parts; chemical sunscreen composition, 3-5 parts; biological sunscreen composition, 8-12 parts; the biological sunscreen composition includes a mixed fermentation extract of white osmanthus, alpine edelweiss and Haematococcus pluvialis; emulsifier, 1-6 parts; oil, 15-25 parts; film-forming agent, 3-8 parts; polyol 3-8 parts.

[0090] In some embodiments, the emulsifier in the sunscreen liquid foundation includes one or more of polyglyceryl-3 diisostearate, PEG-30 dipolyhydroxystearate, and lauryl PEG-9 polydimethylsiloxyethyl dimethicone.

[0091] In some embodiments, the oil in the sunscreen liquid foundation includes one or more of dicaprylyl carbonate, diisopropyl sebacate, and isododecane.

[0092] In some embodiments, the film-forming agent in the sunscreen liquid foundation includes one or a combination of trimethylsiloxysilicate and polymethylsilsesquioxane.

[0093] In some embodiments, the polyol in the sunscreen liquid foundation includes one or more of glycerin, 1,2-pentanediol, and 1,2-hexanediol.

[0094] In some embodiments, the colorant in the sunscreen liquid foundation includes one or more of CI 77891, CI 77499, CI 77492, and CI 77491.

[0095] In some embodiments, the preservative in the sunscreen liquid foundation includes one or more of phenoxyethanol, p-hydroxyacetophenone, caprylyl glycol, and ethylhexylglycerin.

[0096] In an embodiment of the second aspect of the present application, a method for preparing a sunscreen liquid foundation is provided, comprising:

[0097] The filler powder vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer, physical sunscreen powder, chemical sunscreen composition and other ingredients are mixed, the biological sunscreen composition is added, and the mixture is stirred and homogenized to obtain a sunscreen liquid foundation.

[0098] In some embodiments, a method for preparing a sunscreen liquid foundation comprises:

[0099] Raw materials provided: Phase A: emulsifier, oil, physical sunscreen powder, chemical sunscreen composition and film-forming agent; Phase B includes powders such as coloring powder; Phase C includes polyol and preservative, and the preservative can be phenoxyethanol, which is added in an amount of 0.8% of the total mass of the sunscreen foundation; Phase D includes a biological sunscreen composition: mixed fermentation extract of white osmanthus, alpine edelweiss and Haematococcus pluvialis;

[0100] Add phase A and phase B into an emulsifying pot, mix well, heat to 85°C, and stir at 5000 rpm for 7 minutes to obtain a first mixture;

[0101] Phase C was added to the emulsifying pot and mixed evenly with the first mixture. The mixture was stirred at a stirring speed of 5000 rpm for 5 minutes, cooled to 50°C, and the material was cooled to room temperature. Phase D was added and stirred at a stirring speed of 500 rpm for 5 minutes. The mixture was vacuum degassed and discharged at room temperature to obtain a sunscreen liquid foundation.

[0102] In some embodiments, the preparation of the biological sunscreen composition comprises:

[0103] drying and crushing the white osmanthus, alpine edelweiss and haematococcus pluvialis to obtain a mixture powder of the white osmanthus, alpine edelweiss and haematococcus pluvialis;

[0104] Dissolving Bifidobacterium animalis subsp. lactis in Sabouraud glucose liquid medium to obtain a bacterial suspension; inoculating the bacterial suspension into the culture medium for activation to obtain lactic acid bacteria fermentation seed bacteria;

[0105] Dissolving red yeast in Sabouraud glucose liquid medium to obtain a bacterial suspension; inoculating the bacterial suspension into the medium for activation to obtain yeast fermentation seed bacteria;

[0106] placing a mixture powder of white mulberry, alpine edelweiss and haematococcus pluvialis in a fermentation tank, adding lactic acid bacteria fermentation seed bacteria and enzyme powder, wherein the enzyme powder is a composite enzyme powder of cellulase and pectinase, and fermenting to obtain a first fermentation liquid;

[0107] Yeast fermentation seed bacteria are introduced into the first fermentation liquid to carry out fermentation to obtain a second fermentation liquid; and the second fermentation liquid is post-treated to obtain a biological sunscreen composition.

[0108] In some embodiments, the step of drying and crushing the white peony, alpine edelweiss and haematococcus pluvialis to obtain a powder of a mixture of white peony, alpine edelweiss and haematococcus pluvialis includes placing the white peony, alpine edelweiss and haematococcus pluvialis at 100°C for 30 minutes to dry, crushing them at a speed of 500 rpm in a grinder for 6 minutes, and passing them through a 200-mesh sieve to remove large particles to obtain a powder of a mixture of white peony, alpine edelweiss and haematococcus pluvialis.

[0109] In some embodiments, in the steps of dissolving lactic acid bacteria and yeast separately in Sabouraud glucose liquid medium to obtain bacterial suspensions; inoculating the bacterial suspensions into the medium for activation to obtain lactic acid bacteria fermentation seed bacteria and yeast fermentation seed bacteria, the preparation of lactic acid bacteria fermentation seed bacteria includes dissolving lactic acid bacteria in Sabouraud glucose liquid medium, stirring at 250 rpm at 37°C for 10-15 hours, obtaining a bacterial suspension with an absorbance of 0.8-1.5 at a wavelength of 600 nm, inoculating the bacterial liquid again into the medium at an inoculation amount of 1% by mass, culturing according to the above-mentioned culture method for a total of 2 times, activating the bacteria, and using the second-generation bacterial suspension as the lactic acid bacteria fermentation seed bacteria.

[0110] In some embodiments, in the steps of dissolving lactic acid bacteria and yeast separately in Sabouraud glucose liquid medium to obtain bacterial suspensions; inoculating the bacterial suspensions into the medium for activation to obtain lactic acid bacteria fermentation seed bacteria and yeast fermentation seed bacteria, the preparation of yeast fermentation seed bacteria includes dissolving yeast in Sabouraud glucose liquid medium, stirring at 250 rpm at 28°C for 10-15 hours, obtaining a bacterial suspension with an absorbance of 0.8-1.5 at a wavelength of 600 nm, inoculating the bacterial liquid again into the medium at an inoculation amount of 1% by mass, culturing according to the above-mentioned culture method for a total of 2 times, activating the bacteria, and using the second-generation bacterial suspension as the yeast fermentation seed bacteria.

[0111] In some embodiments, the step of placing the mixture powder of white osmanthus, alpine edelweiss and Haematococcus pluvialis in a fermentation tank, inoculating lactic acid bacteria fermentation seed bacteria and enzyme powder, and fermenting to obtain the first fermentation liquid includes adding the mixture powder of white osmanthus, alpine edelweiss and Haematococcus pluvialis to a 5L fermentation tank, controlling the mass ratio of the mixture powder of white osmanthus, alpine edelweiss and Haematococcus pluvialis to water to be 1:10, sterilizing at 121°C for 15 minutes, cooling and placing at room temperature, inoculating lactic acid bacteria fermentation seed bacteria at an inoculation rate of 1-2%, 0.5-1% enzyme powder, the enzyme powder being a composite enzyme powder of cellulase and pectinase with a mass ratio of 1:2, stirring at 250rpm at 37°C for 24-48 hours, adding 1-2 drops of defoaming agent, and detecting the pH, dissolved oxygen content, and viscosity changes during the fermentation process to obtain the first fermentation liquid.

[0112] In some embodiments, yeast fermentation seed bacteria are inoculated into the first fermentation broth for fermentation to obtain a second fermentation broth; and the second fermentation broth is post-treated to obtain a biological sunscreen composition. The preparation of the second fermentation broth comprises inoculating yeast fermentation seed bacteria into the first fermentation broth at an inoculation rate of 1-2%, adding 1 L of SDB medium, stirring at a speed of 250 rpm at 28°C for 24 hours, and oxygenating at an amount of 0.1-0.5 m 3 , adding 1-2 drops of defoaming agent, detecting changes in pH, dissolved oxygen content, and viscosity during the fermentation process to obtain a second fermentation liquid; and post-treating the second fermentation liquid to obtain a biological sunscreen composition.

[0113] In some embodiments, during the preparation of the biological sunscreen composition, yeast fermentation seed bacteria are inoculated into the first fermentation liquid and fermented to obtain a second fermentation liquid; in the step of post-treating the second fermentation liquid to obtain the biological sunscreen composition, the post-treatment of the second fermentation liquid includes: filtration, using 5C filter paper to remove filter residue, and 0.2um to remove bacteria and fine particles; adjusting the pH, selecting sodium hydroxide (1 mol / L) to adjust the pH of the filtrate to 6-7; decolorization and deodorization, adding 1wt% to 2wt% of activated carbon to the total mass of the filtrate, stirring at a speed of 100 rpm for 10-20 minutes to remove the sour taste brought by fermentation and the color of the plant itself, to obtain a colorless and odorless plant fermentation liquid; measuring the conductivity and shading rate to control the stability of the product batches.

[0114] Example

[0115] The following examples describe the present disclosure in more detail and are intended to be illustrative only, as various modifications and variations within the scope of the present disclosure will be apparent to those skilled in the art. Unless otherwise indicated, 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 used directly without further processing, and all instruments used in the examples are commercially available.

[0116] Introduction of bacterial strains: Bifidobacterium animalis subsp. lactis and Rhodotorula were purchased from Shanghai Zhizhen Zhichen Technology Co., Ltd.; lactic acid bacteria and Galactozyme were purchased from Shanghai Fuxiang Biotechnology Co., Ltd.

[0117] Biological sunscreen composition

[0118] Example 1

[0119] Preparation of biological sunscreen composition:

[0120] Place the white osmanthus, alpine edelweiss and Haematococcus pluvialis at 100°C for 30 minutes to dry, grind them in a grinder at 500 rpm for 6 minutes, and pass them through a 200-mesh sieve to remove large particles to obtain a mixture powder of white osmanthus, alpine edelweiss and Haematococcus pluvialis; the mass ratio of white osmanthus, alpine edelweiss and Haematococcus pluvialis is 1:7:5.

[0121] Dissolve Bifidobacterium animalis subsp. lactis in Sabouraud glucose liquid medium and stir at 250 rpm for 12 h at 37° C. to obtain a bacterial suspension with an absorbance of 1.0 at a wavelength of 600 nm. Re-inoculate the bacterial suspension into the medium at an inoculum size of 1% by mass and culture twice according to the above-mentioned culture method to activate the bacteria. Use the second-generation bacterial suspension as the seed bacteria for lactic acid bacteria fermentation.

[0122] Dissolve Rhodotorula glutinosus in Sabouraud glucose liquid medium and stir at 250 rpm for 12 h at 28°C to obtain a bacterial suspension with an absorbance of 1.0 at 600 nm. Re-inoculate the bacterial suspension into the medium at a 1% inoculum by mass and incubate twice according to the above method to activate the bacteria. Use the second-generation bacterial suspension as the seed culture for yeast fermentation.

[0123] A mixture powder of white osmanthus, alpine edelweiss and haematococcus pluvialis is added to a 5L fermentation tank, the mass ratio of the mixture powder of white osmanthus, alpine edelweiss and haematococcus pluvialis (hereinafter referred to as plant powder) to water is controlled to be 1:10, the mixture is sterilized at 121°C for 15 minutes, cooled and allowed to stand at room temperature, lactic acid bacteria fermentation seed bacteria are inoculated at an inoculum amount of 1.5% of the total mass of the plant powder and water, 0.5% enzyme powder is added, and the enzyme powder is a composite enzyme powder of cellulase and pectinase with a mass ratio of 1:2, the mixture is stirred at 37°C at a speed of 250 rpm for 32 hours, 1 drop of defoaming agent is added, and changes in pH, dissolved oxygen content and viscosity are detected during the fermentation process to obtain a first fermentation liquid;

[0124] In the first fermentation broth, yeast fermentation seed bacteria were inoculated at an inoculum rate of 1.5%, and 1L SDB culture medium was added at the same time. The mixture was stirred at 250 rpm at 28 ° C for 24 h and the oxygen flow rate was 0.2 m 3 , adding 1 drop of defoaming agent, and detecting changes in pH, dissolved oxygen content, and viscosity during the fermentation process to obtain a second fermentation liquid;

[0125] The second fermentation liquid is post-treated, including: filtering using 5C filter paper to remove filter residue and 0.2um to remove bacteria and fine particles; adjusting the pH of the filtrate to 6-7 using sodium hydroxide (1 mol / L); removing color and odor by adding activated carbon at 1 wt% of the total mass of the filtrate and stirring at 100 rpm for 11 minutes to remove the sour taste and color of the plant itself after fermentation, thereby obtaining a colorless and odorless plant fermentation liquid; and measuring the conductivity and shading rate to control the stability of the product between batches to obtain a biological sunscreen composition.

[0126] Prepare sunscreen liquid foundation:

[0127] The biological sunscreen composition prepared above is further used to prepare a sunscreen liquid foundation, which includes the following components in parts by weight:

[0128] Filler powder vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosspolymer, 2 parts; physical sunscreen powder (including 0.2 parts each of nano titanium dioxide and zinc oxide), 0.4 parts; chemical sunscreen composition (including 1 part each of ethylhexyl salicylate, bis-ethylhexyloxyphenol methoxyphenyl triazine, and phenylbenzimidazole sulfonic acid), 3 parts; biological sunscreen composition, 8 parts; film-forming agent is trimethylsiloxysilicate, 8 parts by weight; polyol is glycerol, 3 parts by weight; oils are dicaprylyl carbonate, diisopropyl sebacate and isododecane, with a total weight of 15 parts, and the ratio of each is 1:1:1; emulsifiers are lauryl PEG-9 polydimethylsiloxyethyl polydimethicone, PEG-30 dipolyhydroxystearate and polyglyceryl-3 diisostearate, with a total weight of 2 parts, and the ratio of each is 2:1:1; add water to make up to 100 parts.

[0129] Among them, the mass ratio of physical sunscreen powder, chemical sunscreen composition and biological sunscreen composition in the sunscreen liquid foundation is 1:7.5:20, and the ratio of the mass of filler powder vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosslinked polymer to the total mass of physical sunscreen powder, chemical sunscreen composition and biological sunscreen composition is 1:5.7.

[0130] Example 2

[0131] The only difference between Example 2 and Example 1 is that, in the step of preparing the biological sunscreen composition, the mass ratio of Bletilla striata, Edelweiss alpina, and Haematococcus pluvialis is 1:2:8.

[0132] Example 3

[0133] The only difference between Example 3 and Example 1 is that, in the step of preparing the biological sunscreen composition, the mass ratio of Bletilla striata, Edelweiss alpina, and Haematococcus pluvialis is 1:12:2.

[0134] Example 4

[0135] The only difference between Example 4 and Example 1 is that, in the step of preparing the biological sunscreen composition, the mass ratio of Bletilla striata, Edelweiss alpina, and Haematococcus pluvialis is 1:0.6:1.

[0136] Example 5

[0137] The only difference between Example 5 and Example 1 is that, in the step of preparing the biological sunscreen composition, the mass ratio of Bletilla striata, Edelweiss alpina, and Haematococcus pluvialis is 1:15:20.

[0138] Example 6

[0139] Example 6 differs from Example 1 only in that the sunscreen liquid foundation comprises 0.2 parts of a physical sunscreen powder (0.05 parts of nano-titanium dioxide and 0.15 parts of zinc oxide each); 3.4 parts of a chemical sunscreen composition (1 part of phenylbenzimidazole sulfonic acid, 1 part of ethylhexyl methoxycinnamate, and 1.4 parts of diethylaminohydroxybenzoyl hexyl benzoate); and 10 parts of a biological sunscreen composition. The mass ratio of the physical sunscreen powder, chemical sunscreen composition, and biological sunscreen composition in the sunscreen liquid foundation is 1:17:50.

[0140] Example 7

[0141] Example 7 differs from Example 1 only in that the amount of filler powder (vinyl dimethicone / methicone silsesquioxane crosspolymer) added to the sunscreen foundation was changed, so that the total mass ratio of filler powder to the physical sunscreen powder, chemical sunscreen composition, and biological sunscreen composition was 1:4.5.

[0142] Example 8

[0143] Example 8 differs from Example 1 only in that the amount of filler powder (vinyl dimethicone / methicone silsesquioxane crosspolymer) added to the sunscreen foundation was changed, so that the total mass ratio of filler powder to the physical sunscreen powder, chemical sunscreen composition, and biological sunscreen composition was 1:8.7.

[0144] Comparative Example 1

[0145] The only difference between Comparative Example 1 and Example 1 is that the steps of preparing yeast fermentation seed bacteria and performing secondary fermentation using the yeast fermentation seed bacteria are omitted, and only lactic acid bacteria fermentation seed bacteria combined with enzymatic hydrolysis are used to prepare the biological sunscreen composition.

[0146] Comparative Example 2

[0147] The only difference between Comparative Example 2 and Example 1 is that the steps of preparing lactic acid bacteria fermentation seed bacteria and fermenting using the lactic acid bacteria fermentation seed bacteria are omitted, and only yeast fermentation seed bacteria are used for one-step fermentation combined with enzymatic hydrolysis to prepare the biological sunscreen composition.

[0148] Comparative Example 3

[0149] The only difference between Comparative Example 3 and Example 1 is that in the secondary fermentation step using lactic acid bacteria fermentation seed bacteria, the composite enzyme powder of cellulase and pectinase is not added.

[0150] Comparative Example 4

[0151] The only difference between Comparative Example 4 and Example 1 is that in the preparation of the biological sunscreen composition, lactic acid bacteria are used instead of Bifidobacterium animalis subsp. lactis, and Galactozyme is used instead of Rhodotorula glutinosus.

[0152] Comparative Example 5

[0153] The only difference between Comparative Example 5 and Example 1 is that in the preparation of the biological sunscreen composition, Bifidobacterium animalis subsp. lactis and Rhodotorula glutinosus were not used to ferment and extract the mixture of iris, leontopodium alpinum, and Haematococcus pluvialis. Instead, a water extraction method was used, as follows:

[0154] Place the white violet, alpine edelweiss and Haematococcus pluvialis at 100°C for 30 minutes for drying, grind them with a grinder at 500 rpm for 6 minutes, and pass them through a 200-mesh sieve to remove large particles to obtain a mixture powder of the white violet, alpine edelweiss and Haematococcus pluvialis;

[0155] A mixture powder of white osmanthus, alpine edelweiss and haematococcus pluvialis was added to a 5-liter fermentation tank, the mass ratio of the mixture powder of white osmanthus, alpine edelweiss and haematococcus pluvialis (hereinafter referred to as plant powder) to water was controlled to be 1:10, the mixture was sterilized at 121° C. for 15 minutes, stirred at 250 rpm at 37° C. for 32 hours, and then stirred at 250 rpm at 28° C. for 24 hours. Post-processing included: filtration using 5C filter paper to remove filter residue, decolorization and deodorization, adding 1.5 wt% of activated carbon based on the total mass of the filtrate, and stirring at 100 rpm for 11 minutes to obtain a biological sunscreen composition.

[0156] Comparative Example 6

[0157] Comparative Example 6 differs from Example 1 only in that the content of the biological sunscreen composition in the sunscreen liquid foundation is reduced to 0.2 parts. Therefore, the mass ratio of the physical sunscreen powder, chemical sunscreen composition, and biological sunscreen composition in the sunscreen liquid foundation is 1:7.5:0.5.

[0158] Some technical parameters of Examples 1 to 8 and Comparative Examples 1 to 6 are shown in Table 1.

[0159] Test section

[0160] The biological sunscreen compositions and sunscreen liquid foundations prepared in Examples 1 to 8 and Comparative Examples 1 to 6 were tested respectively, and the test results are recorded in Table 1.

[0161] 1. Testing of biological sunscreen compositions

[0162] 1. Test of UV absorption capacity of biological sunscreen composition

[0163] Experimental method: Take the biological sunscreen composition of Example 1 and perform full wavelength scanning at 200-800nm ​​to analyze whether there is a characteristic absorption peak in the ultraviolet region of 200-400nm. The test results are shown in Figure 1 .

[0164] from Figure 1 It can be seen from the full wavelength scanning spectrum of the product that there are three characteristic absorption peaks at 200-400nm, indicating that this product has the ability to absorb ultraviolet rays and has certain chemical sun protection effect.

[0165] 2. Clinical sunscreen effect test of biological sunscreen composition

[0166] Anti-UV erythema test method: Test sample: Take the biological sunscreen composition of Example 1 and use sterile water as the solvent to prepare the test samples with mass percentages of 1%, 5%, and 7% respectively.

[0167] Operation steps: Preheat the instrument 15 minutes in advance, take samples and take photos in the same photography environment in sequence, weigh and apply 50uL of sample; the irradiation area is 1.5cm*1.5cm, and let it stand for 15 minutes after application until the sample is completely absorbed.

[0168] Different doses of UVB irradiation were carried out in the clinical laboratory. The dose for males in this experiment was 600mJ / cm 2 , 400mJ / cm for girls 2 The test results are as follows. Figures 2 to 5 shown.

[0169] From the test results shown in the figure, it can be seen that, taking the above three subjects as an example, the experimental results show that the 7% biological sunscreen composition is relatively effective in preventing redness and sunburn problems.

[0170] 3. Erythema value evaluation of biological sunscreen composition

[0171] The biological sunscreen composition was tested. The erythema value evaluation index of 0-1 indicates no redness or slight redness, which is not significantly different from the positive drug group; 2-3 indicates slight redness or light redness; and 4-5 indicates redness, which is not significantly different from the blank group. The specific testing method is the same as above.

[0172] 4. Evaluation of Viscosity of Biological Sunscreen Compositions

[0173] Viscosity test method: viscometer BROOKFIELD / DV1MLV TJ0., the test sample is kept in a constant temperature incubator at 25℃ for 2 hours. Rotor No. 61, 50 RPM.

[0174] 2. Testing part of sunscreen foundation

[0175] 1. Clinical evaluation of itching after sun exposure on liquid foundation

[0176] A public opinion survey was conducted to select 30 female volunteers aged 20-50 years. The volunteers were asked to try the liquid foundations of the embodiments and comparative examples. The liquid foundations were applied to the faces of the subjects using a wet powder puff or beauty egg. The subjects then applied makeup as usual and rated their feelings.

[0177] The evaluation index is 1-5 points, 1-2 points are weak itching and almost imperceptible, 3 points are slight itching but not obvious, 4-5 points are obvious itching.

[0178] 2. Sun protection factor (SPF) test of liquid foundation

[0179] The sample was measured at 2 mg / cm 2Apply the desired amount of film evenly to each sample. Apply at least three parallel test samples to each sample. After application, let the film stand in the dark for 20 minutes (the drying time varies depending on the formulation and can be extended to 30 minutes as appropriate). Place the coated film in a UVA / UVB irradiation chamber and irradiate with UV light for 10 minutes. Remove the film, let it stand, scan it, and calculate the sun protection value of each sample. The test results are shown in Table 4 below.

[0180] The results show that the SPF of the sunscreen liquid foundation of the example is higher than that of the comparative example. This shows that the sunscreen liquid foundation of the present application includes a filler powder vinyl polydimethylsiloxane / polymethicone silsesquioxane crosspolymer, and a combination of sunscreen active ingredients of a physical sunscreen powder, a chemical sunscreen composition, and a biological sunscreen composition, which can synergistically enhance the SPF value of the foundation.

[0181] The main technical parameters of Examples 1 to 8 and Comparative Examples 1 to 7, and the test results of the prepared biological sunscreen compositions and sunscreen liquid foundations are shown in Table 1.

[0182]

[0183]

[0184] As can be seen from the data in the table, the sunscreen liquid foundation in the examples not only has a good sun protection effect, but also has a weak and almost imperceptible itching sensation, and is mild and non-irritating. This indicates that when only physical or chemical sunscreens are added to the formula, some subjects experience a more obvious itching sensation. The addition of the biological sunscreen composition can effectively alleviate the itching sensation caused by sun exposure in some subjects with sensitive constitutions, thereby compensating for the shortcomings of physical and chemical sunscreens. At the same time, the biological sunscreen composition enhances the activity of skin cells, regulates the skin's immune function, and indirectly improves the skin's resistance to ultraviolet rays. The combined use of the three and their complementary nature will be the future trend in sunscreen products.

[0185] The above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications may be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the claims of the present invention.

Claims

1. A sunscreen liquid foundation, characterized in that: The sunscreen foundation liquid comprises the following components in parts by weight: Filler Powder Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer, 2 parts; and each based on 2 parts Filler Powder Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer: Physical sunscreen powder, 0.2-1 part; Chemical sunscreen composition, 2 to 6 parts; 5 to 15 parts of a biological sunscreen composition; the biological sunscreen composition comprises a mixed fermentation extract of iris odoratus, alpine edelweiss and Haematococcus pluvialis; Other ingredients, 22 to 47 parts.

2. The sunscreen liquid foundation according to claim 1, characterized in that: The biological sunscreen composition comprises a mixed fermentation extract of iris ovata, alpine edelweiss and haematococcus pluvialis in a mass ratio of 1:(0.6-15):(1-20); the optional mass ratio is 1:(2-12):(2-8).

3. The sunscreen liquid foundation according to claim 1, characterized in that: The mass ratio of the physical sunscreen powder, the chemical sunscreen composition and the biological sunscreen composition in the sunscreen liquid foundation is 1:(7.5-17):(20-50).

4. The sunscreen liquid foundation according to claim 1, characterized in that: The sum of the mass of the physical sunscreen powder, the chemical sunscreen composition and the biological sunscreen composition accounts for 5% to 18% of the total mass of the sunscreen liquid foundation; and / or; The mass percentage of the biological sunscreen composition in the sunscreen liquid foundation is 5% to 12%.

5. The sunscreen liquid foundation according to claim 1, characterized in that: The ratio of the mass of the filler powder vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer to the total mass of the physical sunscreen powder, the chemical sunscreen composition and the biological sunscreen composition is 1:(4.5-8.7).

6. The sunscreen liquid foundation according to claim 1, characterized in that: The sunscreen liquid foundation meets at least one of the following characteristics: a. The physical sunscreen powder includes one or more of nano titanium dioxide and zinc oxide; b. The chemical sunscreen composition comprises one or more of ethylhexyl methoxycinnamate, diethylamino hydroxybenzoyl hexyl benzoate, ethylhexyl salicylate, bis-ethylhexyloxyphenol methoxyphenyl triazine and phenylbenzimidazole sulfonic acid; c. The other ingredients include one or more of emulsifiers, oils, film formers, polyols, colorants and preservatives.

7. The sunscreen liquid foundation according to claim 6, characterized in that: The sunscreen foundation liquid comprises the following components in parts by weight: Filler Powder Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer, 2 parts; and each based on 2 parts Filler Powder Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer: Physical sunscreen powder, 0.2-1 part; Chemical sunscreen composition, 2 to 6 parts; 5 to 15 parts of a biological sunscreen composition; the biological sunscreen composition comprises a mixed fermentation extract of iris odoratus, alpine edelweiss and Haematococcus pluvialis; Emulsifier, 1 to 6 parts; Oil, 15-25 parts; Film former, 3 to 8 parts; 3 to 8 parts of polyol.

8. The sunscreen liquid foundation according to claim 6, characterized in that: The sunscreen liquid foundation satisfies at least one of the following conditions: d. The emulsifier includes one or more of polyglyceryl-3 diisostearate, PEG-30 dipolyhydroxystearate and lauryl PEG-9 polydimethylsiloxyethyl dimethicone; e. The oil comprises one or more of dicaprylyl carbonate, diisopropyl sebacate and isododecane; f. The film-forming agent comprises one or a combination of trimethylsiloxysilicate and polymethylsilsesquioxane; g. The polyol comprises one or more of glycerol, 1,2-pentanediol and 1,2-hexanediol; h. The colorant includes one or more of CI 77891, CI 77499, CI 77492 and CI 77491; i. The preservative includes one or more of phenoxyethanol, p-hydroxyacetophenone, caprylyl glycol and ethylhexylglycerin.

9. A method for preparing a sunscreen liquid foundation, characterized in that: include: The filling powder vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer, physical sunscreen powder, color powder, chemical sunscreen composition, oil, emulsifier, and film former are homogenized, and the biological sunscreen composition, polyol, and preservative are added and homogenized to obtain the sunscreen liquid foundation.

10. The method for preparing the sunscreen liquid foundation according to claim 9, characterized in that: The preparation of the biological sunscreen composition comprises: Drying and crushing the white osmanthus, alpine edelweiss and Haematococcus pluvialis to obtain a mixed powder of the white osmanthus, alpine edelweiss and Haematococcus pluvialis; Dissolving animal Bifidobacterium lactis subsp. in a Sabouraud glucose liquid culture medium to obtain a bacterial suspension; inoculating the bacterial suspension into a culture medium for activation to obtain lactic acid bacteria fermentation seed bacteria; Dissolving red yeast in Sabouraud glucose liquid culture medium to obtain bacterial suspension; inoculating the bacterial suspension into the culture medium for activation to obtain yeast fermentation seed bacteria; The mixed powder of white mulberry, alpine edelweiss and Haematococcus pluvialis is placed in a fermentation tank, and the lactic acid bacteria fermentation seed bacteria and enzyme powder are added, wherein the enzyme powder is a composite enzyme powder of cellulase and pectinase, and fermented to obtain a first fermentation liquid; The yeast fermentation seed bacteria are added to the first fermentation liquid for fermentation to obtain a second fermentation liquid; and the second fermentation liquid is post-treated to obtain the biological sunscreen composition.

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