CN114146010B

CN114146010B - Anhydrous sun-screening gel containing oil-soluble sun-screening agent and preparation method thereof

Info

Publication number: CN114146010B
Application number: CN202111666458.7A
Authority: CN
Inventors: 彭心宇; 刘新武; 邱晓锋
Original assignee: Nox Bellcow Cosmetics Co Ltd
Current assignee: Nox Bellcow Cosmetics Co Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2023-08-08
Anticipated expiration: 2041-12-31
Also published as: CN114146010A

Abstract

The invention discloses an anhydrous sun-proof gel, which comprises the following components: 10% -40% of an oil-soluble sunscreen agent or a combination thereof with a physical sunscreen agent, 2% -9% of an organosilicon elastomer, 0.5% -5% of an oil phase thickener, 0% -2% of a dispersing agent, 40% -80% of grease and 0% -5% of an active substance, wherein the anhydrous sunscreen gel of the invention presents a beautiful semi-permeable gel appearance when the physical sunscreen agent is not contained, and presents a white gel appearance when the physical sunscreen agent is contained, and the oil phase thickener used is montmorillonite and/or hectorite modified by lipophilic groups. The invention forms anhydrous sun-proof gel by utilizing the oil-soluble sun-proof agent, and the formed gel has excellent skin feel, higher sun-proof value and better water resistance although the gel is of an all-oil formula.

Description

Anhydrous sun-screening gel containing oil-soluble sun-screening agent and preparation method thereof

Technical Field

The invention relates to a sun-screening agent and a preparation method thereof, in particular to an anhydrous sun-screening gel containing an oil-soluble sun-screening agent and a preparation method thereof.

Background

Under the strong irradiation of ultraviolet rays, skin is easy to cause skin inflammation, burn, even pigment skin cancer and other problems. In order to prevent skin from being sunburned and sunburned, ultraviolet rays can be blocked or absorbed by applying a sun-proof product or the like in addition to physical shielding using sun-proof clothing.

The sun protection products on the market at present mainly comprise the following components:

1. sun oil of pure oil phase system: most sunscreens are oil-soluble materials and therefore are compatible with most polar oils to form a homogeneous system. However, the sun-screening oil has thick and greasy skin feel, so the sun-screening oil is rare in domestic markets; and such sunscreen products are generally free of physical sunscreens;

2. sun stick: similar to sun-screening oil, the sun-screening stick is thickened and formed by using an oil phase thickener, has certain hardness, but has thick and greasy skin feel and oil-bleeding, and has fewer domestic market acceptors;

3. sun protection spray: the spray of the product contains a large amount of alcohol or propellant, and is internally mixed with the sun-screening agent, so that the product has inhalation danger and certain harm to human bodies, and the other defect is that consumers cannot achieve the sun-screening effect easily due to insufficient spray amount in the use process.

Chinese patent 201380051782.5 discloses a photostable sunscreen composition that provides enhanced sun protection after a sustained period of time after application to the skin. The inventors of this patent found that high SPF can be achieved using triazine group compounds without the use of additional UVA and UVB sunscreens and when nonionic surfactants are included in fatty acid containing cosmetic bases.

Chinese patent 201810783902.5 discloses a sunscreen cosmetic with waterproof property and a preparation method thereof. According to the method, isooctyl methoxycinnamate and 3- (4-methylbenzylidene) camphor are loaded on modified nano porous zinc oxide to prepare a composite sun-screening agent A, 4-tertiary butyl-4-methoxydibenzoylmethane and diethylhexyl butyramide triazone are loaded on modified nano porous titanium dioxide to prepare a composite sun-screening agent B, and then waterproof sun-screening emulsion is further prepared. Such products having organic sunscreens supported on inorganic sunscreens particles have poor skin feel.

Chinese patent application 201810359852.8 discloses a transparent sun-screening gel product which comprises 1-5 parts of carbomer, 0.1-1 part of gum, 5-20 parts of humectant, 0.1-1 part of sodium hyaluronate, 3-18 parts of organic sun-screening agent, 0.1-1 part of preservative, 1-5 parts of polyethylene glycol-15 methyl ether polydimethylsiloxane, 1-5 parts of plant extract, 1-10 parts of conventional cosmetic additive and the balance of water. The humectants used in this patent application are polyols such as propylene glycol, glycerol, butylene glycol, pentylene glycol, hexylene glycol, trehalose, sucrose, and the like. The sun-proof product contains more water, belongs to the oil-in-water type, uses the polyol, has poor water resistance, and has poor compatibility of the polyol and grease, so that the product stability is poor.

Chinese patent application 202011406371.1 discloses an oil-in-water sun-protection emulsion and a preparation method thereof, wherein the oil-in-water sun-protection emulsion comprises 45-60 parts of an aqueous phase component A, 35-45 parts of an oil phase component B, 0.5-0.8 part of a component C, 0.5-1.5 parts of a component D and 15-20 parts of a component E; wherein the oil phase component of group B is selected from organic sunscreen agent, oil and fat, skin feel regulator, emulsifier, and antioxidant, and the emulsifier comprises 5wt% of O/W type emulsifier with pH of 5.5-7.5 and O/W nonionic emulsifier with HLB value of 10-13. The product of this patent application is in the form of an oil-in-water, which is easy to clean but has poor water resistance.

Chinese patent application 202080008613.3 discloses a cosmetic composition comprising: (i) 0.5 to 20 wt% of an organic sunscreen agent; and (ii) 2-60 wt% of a blend comprising a silicone elastomer gel of formula (I) and a non-silicone solvent selected from hydrocarbons, oils, modified oils, esters, ethers, alcohols, or mixtures thereof. The organic sunscreen agent is selected from dibenzoylmethane or its derivative, triazine derivative, or benzophenone or its derivative, and/or selected from benzophenone, anthranilate, salicylate, cinnamate, camphor, benzalmalonate, triazinone or its derivative. The product is a washing-free cosmetic with limited sun protection value.

Chinese patent application 202111156152.7 discloses a gel with sun protection effect and a preparation method thereof, the gel comprising the following components: a sunscreen agent, a silicone elastomer, and a skin feel modifier; the organic silicon elastomer accounts for 20-65% of the gel by mass, and the skin feel regulator accounts for 2-25% of the gel by mass; and the gel is free of preservatives and surfactants. The product of this patent application is a water-in-oil product, and uses a polyol as a humectant, but does not use a thickener to stabilize the product, and the product stability is poor.

Thus, there is a need to provide a water-resistant, all-oil anhydrous sunscreen gel that has a good skin feel.

Disclosure of Invention

The invention aims to provide an anhydrous sun-screening gel containing an oil-soluble sun-screening agent, which is waterproof and is not sticky after being smeared, and has a distinctive appearance, good skin feel, high sun-screening value and waterproof performance.

In one aspect, to achieve the above object of the present invention, the present invention provides an anhydrous sun-screening gel, wherein the anhydrous sun-screening gel comprises the following components in percentage by weight:

10% -40% of an oil-soluble sunscreen or a combination with a physical sunscreen,

2% -9% of organic silicon elastomer,

0.5% -5% of oil phase thickener,

0% -2% of dispersing agent,

40% -80% of grease

0% -5% of active substance,

wherein the anhydrous sun-protecting gel of the present invention exhibits a beautiful semi-permeable gel appearance when free of physical sunscreens and a white gel appearance when containing physical sunscreens;

the oil-soluble sunscreen agent used refers to an organic sunscreen agent which can be dissolved in the adopted grease and can finally form gel in the system of the invention;

the ratio of the oil-soluble sun-screening agent to the physical sun-screening agent is 1:0-0.9, preferably 1:0-0.6;

the physical sun-screening agent is titanium dioxide and/or zinc oxide;

the dispersant is a substance which has a dispersing effect on the powder form physical sun-screening agent in the grease and prevents the powder from gathering;

the oil phase thickener is montmorillonite and/or hectorite modified by lipophilic group;

the grease is used for dissolving and/or dispersing the oil-soluble sun-screening agent, the organic silicon elastomer and the oil phase thickening agent;

the active substances are oil-soluble and effective components used in cosmetics.

The anhydrous sun-proof gel disclosed by the invention has good skin feel, is not sticky and greasy to paint, and is not oily and shiny. The invention is characterized in that the invention innovatively invents the anhydrous sun-proof gel with a unique form, and is different from sun-proof sticks and sun-proof oil which circulate in the market, and the sun-proof gel innovatively developed by the invention has a distinctive appearance and an excellent skin feel, and simultaneously has higher sun-proof value and waterproof performance.

It is noted that in the market place, silicone elastomers are often present in a dispersed form, such as a gel form, in which they are dispersed in grease, and oil phase thickeners are also often present in a dispersed form, such as a gel form, in which they are dispersed in grease, but the grease here cannot be equated with the silicone elastomer itself or the oil phase thickener itself, which should be distinguished because in practice additional grease or elastomer is added for conditioning. Therefore, this is distinguished for clarity of explanation in the present invention. For example, if commercially available in the form of silicone elastomer dispersion or oil phase thickener dispersion, it is converted to the corresponding silicone elastomer + oil or oil phase thickener + oil.

It should also be noted that a ratio of 1:0-0.9 of oil-soluble sunscreen to physical sunscreen means 1 part of oil-soluble sunscreen to 0-0.9 part of physical sunscreen.

In the anhydrous sun-screening gel of the present invention, the oil-soluble sun-screening agent is two or more of the following: ethylhexyl methoxycinnamate, butylmethoxydibenzoylmethane, ethylhexyl salicylate, homosalate, octocrylene, hexyl diethylcarbamoylbenzoate, bis-ethylhexyloxyphenol methoxyphenyl triazine, isoamyl p-methoxycinnamate, ethylhexyl triazone, polysiloxane-15, and diethylhexyl butyrylaminotriazone. Because the country with the highest use limit of each sunscreen agent is regulated, and the ultraviolet wavelength absorbed by each sunscreen agent has a respective interval, the invention adopts two or more sunscreen agents to realize the coverage of a wide wavelength range and reach the current high sun protection value.

In the anhydrous sun-screening gel of the present invention, if a physical sun-screening agent is used, the preferred physical sun-screening agent is nano or non-nano titanium dioxide and/or zinc oxide, wherein the initial particle size of the nano titanium dioxide used is in the range of 10-40 nm, the initial particle size of the nano zinc oxide used is in the range of 15-50 nm, and the initial particle size of the non-nano titanium dioxide or zinc oxide used is in the range of 100-200 nm; because of the use of titanium dioxide and/or zinc oxide which are sufficiently fine, it is more advantageous to form a dense protective film.

In the anhydrous sun-protecting gel of the present invention, if a physical sun-protecting agent is used, a preferred physical sun-protecting agent is one or more treated with a surface treating agent selected from the group consisting of: silica, aluminum hydroxide, polydimethylsiloxane, triethoxy octyl siloxane, hydrogenated polydimethylsiloxane, silicone resin, dimethoxydiphenyl silane/triethoxy octyl silane cross-linked copolymer, stearic acid and aluminum stearate. The main advantages of the surface treatment of the physical sunscreens are that firstly, the photocatalysis of fine particles can be blocked, and secondly, the surface treatment is not easy to aggregate and is easy to disperse in an oil phase. The titanium dioxide and zinc oxide have photocatalysis, especially when the fine particles reach the nanometer level, and most of negative effects are eliminated after the surface treatment is carried out on the surfaces of the fine particles; in addition, the particle size is small, so that the particles are easy to aggregate, and the particles are not easy to aggregate after surface treatment, so that the particles are favorable for being uniformly dispersed in a formula.

In the anhydrous sun protection gel of the present invention, if a physical sun protection agent is used, it is preferable to add a dispersant to the formulation. The selection and use of the dispersing agent helps to increase the degree of dispersion of the physical sunscreens throughout the system, particularly in oils and fats, so that the physical sunscreens are well compatible with the organic sunscreens, thereby facilitating the formation of a better dense sun-screening film. The dispersant used is preferably one or more selected from the group consisting of: polydimethyl siloxane with polyethylene glycol groups, polydimethyl siloxane with polyglyceryl groups, sorbitan isostearate and polyhydroxystearic acid.

In the anhydrous sun-blocking gels of the present invention, the preferred silicone elastomer is a polydimethylsiloxane cross-linked polymer. In the invention, the main function of the organosilicon elastomer is to provide thickening and regulating skin feel, especially when the system contains more siloxane as grease, the organosilicon elastomer has good thickening, and in addition, the organosilicon elastomer has excellent function, and the organosilicon elastomer is popular in skin feel, light, matt and non-greasy.

The polydimethylsiloxane crosslinked polymer used is preferably one comprising a polydimethylsiloxane crosslinked polymer having a polyethylene glycol or polypropylene glycol chain, such as PEG-12 polydimethylsiloxane/PPG-20 crosslinked polymer, polydimethylsiloxane/bis-isobutyl PPG-20 crosslinked polymer, and the like.

In the anhydrous sun protection gels of the present invention, the oil phase thickener is one of the key ingredients in forming the gel. In particular, when oils other than silicone oils are contained in the oils used, it is more necessary to add an oil phase thickener. The amount of oil phase thickener used can be adjusted accordingly according to the grease selected in the formulation. In the present invention, the lipophilic group in the oil phase thickener used is preferably derived from a thickener having a single-chain or double-chain structure and having C atoms ₁₂ -C ₂₂ Quaternary ammonium salts of (a).

More preferably, in the anhydrous sun protection gel of the present invention, the oil phase thickener used is disteardimonium hectorite and/or sela ammonium chloride hectorite.

In the anhydrous sun-screening gel of the present invention, the choice of grease is closely related to the choice of oil-soluble sunscreens, both of which are combined with organic elastomers, oil phase thickeners, and the like, to form the anhydrous sun-screening gel of the present system. The grease used may be one or more selected from the group consisting of: low viscosity polydimethylsiloxanes, octylpolymethylsiloxanes, phenyltrimethicones, diphenylsiloxyphenyltrimethicones, cyclic polymethylsiloxanes, C ₁₁ -C ₁₉ Straight or branched chain alkanes, synthetic oils and vegetable oils.

In the grease adopted by the invention, the low-viscosity polydimethylsiloxane can be 2-viscosity, 5-viscosity, 6-viscosity polydimethylsiloxane and the like; c (C) ₁₁ -C ₁₉ The straight-chain or branched alkane of (2) may be isomerised dodecane, isomerised hexadecane, carbaundecane, carbatridecane, white mineral oil, liquid paraffin and the like; the synthetic oil and fat can be isononyl isononanoate, propylene carbonate, dioctyl carbonate, and C ₁₂ -C ₁₅ Alkyl benzoate esters, caprylic/capric triglyceride, diisopropyl adipate, isopropyl myristate, isodecyl pivalate, and the like; the vegetable oil can be squalane, avocado oil, jojoba oil, oleum Helianthi, and oleum Begoniae Laciniatae.

In the anhydrous sun-screening gel of the present invention, the active substance used may be bisabolol having anti-inflammatory and soothing effects, a laminaria japonica extract having anti-photoaging effects, a ceramide having repairing effects, or the like. In fact, in the present invention, the active may refer to any functional ingredient commonly used in cosmetics that performs a functional role. Of course, the anhydrous sun-protection gels of the present invention may also be free of such actives.

It is noted that the anhydrous sun-screening gel of the present invention may be an anhydrous sun-screening gel of pure organic sun-screening agent, but a physical sun-screening agent may be added thereto, because the physical sun-screening agent has the advantages of being not easy to be absorbed by human body, high sun-screening ability, etc., and the use of the dispersing agent also makes the organic sun-screening agent in the system of the present invention well compatible with the physical sun-screening agent.

As a specific embodiment, the anhydrous sun-blocking gel of the present invention comprises the following components:

20-40% of an oil-soluble sunscreen or a combination with a physical sunscreen,

1.5% -8% of organic silicon elastomer,

1% -5% of an oil phase thickener,

0% -1% of dispersing agent,

50% -75% of grease

0% -2% of active substance,

wherein the ratio of the oil-soluble sun-screening agent to the physical sun-screening agent is 1:0-0.3.

As another embodiment, the anhydrous sun-blocking gel of the present invention comprises the following components:

25% -40% of an oil-soluble sunscreen or a combination with a physical sunscreen,

3% -8% of organic silicon elastomer,

2% -5% of an oil phase thickener,

0 to 0.8 percent of dispersing agent,

50% -70% of grease

0% -1% of active substance,

wherein the ratio of the oil-soluble sun-screening agent to the physical sun-screening agent is 1:0-0.2. In another aspect, to achieve the object of the present invention, the present invention also provides a method for preparing the above anhydrous sun-protecting gel, comprising the steps of:

1) Mixing the sun-screening agent, and heating to dissolve to transparent state;

2) Adding the dispersed organosilicon elastomer and the dispersed oil phase thickener into the sun-screening agent obtained in the step 1), and uniformly stirring.

The silicone elastomer in dispersed form can be purchased directly or prepared as follows: mixing the organosilicon elastomer with grease, and stirring uniformly to obtain semitransparent or transparent organosilicon elastomer gel or other dispersion forms.

The dispersed oil phase thickener can also be purchased directly or prepared by the following method: adding the oil phase thickener into the grease, and uniformly stirring to obtain semitransparent oil phase thickener gel or other dispersion forms.

In the preparation method of the invention, if the anhydrous sun-screening gel is a pure oil-soluble sun-screening agent or a system of organic sun-screening agents, the sun-screening agent mixing of the step 1) refers to mixing different organic sun-screening agents; if the anhydrous sun-protecting gel also contains a physical sun-protecting agent, the mixing of the sun-protecting agent of step 1) comprises mixing different organic sun-protecting agents with the physical sun-protecting agent, wherein the physical sun-protecting agent and the dispersing agent are preferably dispersed in part of the adopted grease in advance, uniformly dispersed and then mixed with the organic sun-protecting agent.

If an active is used in the formulation of the anhydrous sun protection gel, the preparation process described above further comprises the step of adding and stirring the active uniformly.

The invention forms anhydrous sun-proof gel by utilizing the oil-soluble sun-proof agent, and the formed gel is not sticky and greasy when being smeared, has no oil light, has excellent skin feel, and can prepare a product with higher sun-proof value according to the dosage of the sun-proof agent. Because the sun-proof gel is an anhydrous system, the condition of oil in water does not exist, the polyol does not exist, the sun-proof gel is not easy to wash away by water under the action of general shearing force, and the sun-proof gel has better water resistance.

The present invention will be further described with reference to the following specific embodiments and the accompanying drawings, which are only illustrative of certain specific embodiments of the invention, and are not limiting of the invention.

Drawings

Fig. 1 is a graph showing the results of the measurement of the anhydrous sun-protection gel prepared in example 3 according to the standard in vitro test method of Colipa 2011.

Detailed Description

In the examples below, the main raw material sources used are as follows in table 1:

table 1:

note that: PEG-12 polydimethylsiloxane/PPG-20 crosslinked polymer in Table 1 was obtained directly from Dow chemical (China) Inc. in the United states at a level of 20% in the form of octyl polymethylsiloxane dispersion; distearyldimethylammonium hectorite is commercially available directly from Hamming chemical, england, in the form of a dispersion of isododecane and dioctyl carbonate at a level of 12.5%; cetylstearyl dimethicone cross-linked polymer was purchased from maitugao new materials (china) limited at 1 content of 5% in the form of a dispersion of dimethicone; c (C) ₃₀ -C ₄₅ The alkyl dimethicone cross-linked polymer was obtained directly from maitui advanced materials (china) limited in the form of a 15% dispersion in octyl dimethicone.

Examples 1 to 7

The anhydrous sunscreen gel containing the oil-soluble sunscreen of the present invention was prepared according to the formulation in table 2 below, the basic steps of the preparation method being as follows:

2) Adding the dispersed organosilicon elastomer and the dispersed oil phase thickener into the sun-screening agent obtained in the step 1), and uniformly stirring;

3) Adding the selected active substances, and stirring uniformly.

For embodiments containing physical sunscreens, in step 1), the physical sunscreens and dispersants are first dispersed in the grease, homogeneously dispersed, and then mixed with the organic sunscreens.

Table 2:

examples numbering	1	2	3	4	5	6	7
								Octyl polymethylsiloxane	32	32	32	32	32	33	34
Isodecyl (Isodecyl)	21.5	21.5	20.5	20.5	24.5	21.5	22.5
								Propylene carbonate	1.5	1.5	1.5	1.5	1.5	1.5	1.5
PEG-12 polydimethylsiloxane/PPG-20 crosslinked polymer	5	4	8	6	7.5	7.5	7.5
								Distearyldimethylammonium hectorite	4	5	2	4	3	3	3
Zinc oxide	0	0	0	0	0	5	2
								Titanium dioxide	0	0	0	0	5	0	3
Polyhydroxystearic acid	0	0	0	0	0.5	0.5	0.5
								Oracle	8	8	8	8	4	5	4
Ethylhexyl methoxycinnamate	9	9	9	9	5	6	5
								Diethylaminohydroxybenzoyl hexyl benzoate	4	4	4	4	4	4	4
Homosalate ester	8	8	8	8	6	6	6
								Ethylhexyl salicylate	4.5	4.5	4.5	4.5	4.5	4.5	4.5
Ethylhexyl triazinone	1	1	1	1	1	1	1
								Bis-ethylhexyloxyphenol methoxyphenyl triazines	1	1	1	1	1	1	1
Squalane (Squalene)	0.5	0.5	0.5	0.5	0.5	0.5	0.5

Note that: in Table 2, the particle diameters of the titanium dioxide used in examples 5 to 7 have primary particle diameters of 10 to 20 nm, and the zinc oxide has primary particle diameters of 30 to 50 nm.

Examples 8 to 10

Substantially the same as in example 1, except that 0.5% of bisabolol, 0.5% of the kelp extract, and 0.5% of ceramide as active substances were added to the formulations of examples 8 to 10, respectively.

Comparative examples 1 to 4

The preparation of the anhydrous sunscreen gel of the present invention was attempted according to the formulation of table 3 in the same manner as in example 1. The results in Table 3 show that these comparative examples are unsuccessful partial failure cases, in which comparative example 1 shows a mud-pickup phenomenon due to the excessive use of high molecular weight polymer; comparative example 2 crosslinking Polymer, C due to the use of cetylstearyl polydimethylsiloxane ₃₀ -C ₄₅ Alkyl polydimethylsiloxane cross-linked polymer and the like are used as thickening agents, and the product oil-out phenomenon occurs due to incompatibility with the sun-screening agent in the formula; comparative example 3 shows the appearance of oily skin feel and the like due to the absence of the use of an organic elastomer; comparative example 4 resulted in a thinner product and an insufficient consistency due to the lack of oil phase thickener.

Table 3:

test experiment

The inventors performed a number of tests, of which fig. 1 was selected as a result of measuring the formulation prepared in example 3 according to the standard in vitro test method of Colipa 2011. The results show that, its SPF average value is 73.4, PA mean value is 13.1 (+++).

Claims

1. An anhydrous sun-screening gel, wherein the anhydrous sun-screening gel comprises the following components in percentage by weight:

2% -9% of organic silicon elastomer,

0.5% -5% of oil phase thickener,

0% -2% of dispersing agent,

40% -80% of grease

0% -5% of active substance,

wherein the anhydrous sun-protecting gel exhibits a beautiful semi-permeable gel appearance when free of physical sunscreens and a white gel appearance when containing physical sunscreens;

the oil-soluble sunscreen agent is an organic sunscreen agent which can be dissolved in the grease and finally can form gel;

the ratio of the oil-soluble sun-screening agent to the physical sun-screening agent is 1:0-0.9;

the physical sun-screening agent is titanium dioxide and/or zinc oxide;

the dispersing agent is a substance which has a dispersing effect on the physical sun-screening agent in the form of powder in the grease and prevents the powder from gathering;

the oil phase thickener is montmorillonite and/or hectorite modified by lipophilic group, wherein the lipophilic group is C with single-chain or double-chain structure ₁₂ -C ₂₂ Quaternary ammonium salts of (a);

the grease is used for dissolving and/or dispersing the oil-soluble sun-screening agent, the organic silicon elastomer and the oil phase thickening agentThe grease comprises: one or more selected from low viscosity polydimethylsiloxane, octyl polymethylsiloxane, phenyl polytrimethylsiloxane, diphenyl siloxyphenyl polytrimethylsiloxane and cyclic polymethylsiloxane, and C ₁₁ -C ₁₉ One or more of linear or branched alkanes and synthetic oils; wherein the synthetic oil comprises isononyl isononanoate, propylene carbonate, dioctyl carbonate and C ₁₂ -C ₁₅ Alkyl benzoate of (a);

the active substance is an oil-soluble functional component used in cosmetics;

the organosilicon elastomer is PEG-12 polydimethylsiloxane/PPG-20 crosslinked polymer and/or polydimethylsiloxane/bis-isobutyl PPG-20 crosslinked polymer.

2. The anhydrous sun-protecting gel according to claim 1, wherein said oil-soluble sun-protecting agent is two or more of the group consisting of: ethylhexyl methoxycinnamate, butylmethoxydibenzoylmethane, ethylhexyl salicylate, homosalate, octocrylene, hexyl diethylcarbamoylbenzoate, bis-ethylhexyloxyphenol methoxyphenyl triazine, isoamyl p-methoxycinnamate, ethylhexyl triazone, polysiloxane-15, and diethylhexyl butyrylaminotriazone.

3. The anhydrous sun-protecting gel according to claim 1, wherein said physical sun-protecting agent is treated with one or more surface treating agents selected from the group consisting of: silica, aluminum hydroxide, polydimethylsiloxane, triethoxy octyl siloxane, hydrogenated polydimethylsiloxane, silicone resin, dimethoxydiphenyl silane/triethoxy octyl silane cross-linked copolymer, stearic acid and aluminum stearate.

4. An anhydrous sun-protecting gel according to claim 1, wherein said oil phase thickener is disteardimonium hectorite and/or sela ammonium chloride hectorite.

5. The anhydrous sun-protecting gel according to claim 1, wherein said dispersant is one or more selected from the group consisting of: polydimethyl siloxane with polyethylene glycol groups, polydimethyl siloxane with polyglyceryl groups, sorbitan isostearate and polyhydroxystearic acid.

6. The anhydrous sun-protecting gel according to claim 1, wherein said active is bisabolol with anti-inflammatory and soothing effects, a laminaria japonica extract with anti-photoaging effects or a ceramide with repairing effects.

7. A method of preparing the anhydrous sun-protecting gel according to any one of claims 1-6, said method comprising the steps of: