ANHYDROUS SOLAR FORMULAS

Abstract

The invention relates to a water-free sunscreen composition suitable for topical use, comprising non-nanometric zinc oxide suspended in a cosmetically and / or dermatologically acceptable lipophilic vehicle, said sunscreen composition not comprising titanium dioxide. The composition is stable, i.e., the zinc oxide particles suspended in the lipophilic vehicle do not settle when the composition remains at rest for more than 12 hours.

Description

Title of the invention: Anhydrous solar formulas

[0001] The present invention relates to the field of cosmetics and / or dermatology, and more precisely to the field of cosmetic and / or dermatological compositions used for sun protection of the skin, mucous membranes and / or appendages.

[0002] The sunscreen compositions according to the invention are free of water, in order to limit the problems linked to microbial development and the obligation to use preservatives, which can cause allergic reactions in the user and have harmful effects on the environment.

[0003] In the present application, a "water-free composition" means a composition comprising, for example, less than 0.5% water relative to the total mass of said composition (i.e. less than 0.5 g of water per 100 g of composition).

[0004] The sunscreen compositions according to the invention are stable over time.

[0005] Furthermore, the sunscreen compositions according to the invention are free from titanium oxide and / or synthetic organic sunscreens, with the aim of limiting their impact on the environment and / or on the health of users.

[0006] The sunscreen compositions according to the invention comprise only one mineral sunscreen which is non-nanometric zinc oxide according to European regulations and cosmetic regulation No. 1223 / 2009. This regulation defines a nanomaterial as being an insoluble or bio-persistent material, intentionally manufactured and characterized by one or more external dimensions, or an internal structure, on a scale of 1 to 100 nm.

[0007] Water-free sunscreen compositions have already been described in the literature.

[0008] For example, patent application US2012225106, filed in the name of the company ISP INVESTMENTS INC., discloses cosmetic compositions comprising at least one metal oxide, a crosslinked derivative of polyvinylpyrrolidone (PVP), and at least one solvent selected from the group consisting of alcohol, ester, oil, glycol or a combination thereof. These compositions can therefore be water-free. The addition of the crosslinked derivative of PVP makes it possible to obtain a composition which does not exhibit any phenomenon of sedimentation or aggregation of the metal particles. The use of this type of polymer presents a danger to users since the monomeric unit thereof, l-vinyl-2-pyrrolidone, is suspected of causing cancer. The sunscreen compositions according to the present invention do not comprise this type of PVP and / or its derivatives.

[0009] It is also disclosed in the two patent applications WO2016048274 and WO2016048425, both filed in the name of the company COLGATE PALMOLIVE, water-free cosmetic compositions comprising at least one triglyceride ester derivative, a first wax having a melting point of between 35 and 72°C, such as beeswax, a second wax having a melting point of between 73 and 90°C, and a vegetable oil having a saponification index of between 150 and 275 mg. These compositions may optionally contain zinc oxide and be used as water-free sunscreen compositions. Unlike the sunscreen compositions according to the invention, the combination of zinc oxide and wax has a low propensity to allow correct dispersion of the metal oxide particles. In addition, the sunscreen compositions according to the invention are free of waxes as defined above.Finally, the combination of polyhydroxystearic acid, caprilyc / capric triglycerides and non-nanometric Zinc particles, as defined in the present application, allows the substitution of these waxes not suitable for sunscreen compositions.

[0010] also disclosed in the two patent applications JP2018104401 and JP2022176753, both filed in the name of the company SAKAI CHEMICAL IND CO, are compositions for dispersing titanium dioxide and / or zinc dioxide in volatile hydrocarbon oils, as well as their possible use in sunscreen compositions.

[0011] The dispersants disclosed in the application, JP2018104401, consist of polyhydroxystearic acid, dextran esterified with a fatty acid and a volatile hydrocarbon oil. This specific composition makes it possible to homogeneously disperse a sunscreen consisting of titanium oxide, zinc oxide, and / or a mixture of the two. Although these preparations make it possible to disperse metal oxide particles, they do not make it possible to obtain water-free sunscreen compositions. The compositions of the various examples disclosed in this application are all in the form of emulsions. Contrary to this application, the mixture according to the invention between zinc particles, polyhydroxystearic acid and caprilyc / capric triglycerides with the various constituents makes it possible to obtain a stable water-free composition.

[0012] In the second application, JP2022176753, new dispersants based on zinc oxide particles are presented. The particles are coated with a fatty acid chosen from the group of stearic, myristic and / or palmitic carbon chains, in molar proportions of between 2.3 and 4.0 mol%. The whole is mixed with polyhydroxystearic acid, and a non-silicone oil chosen from ester and / or fruit oils. On the other hand, these dispersants do not make it possible to obtain water-free compositions with non-nanometric zinc particles, unlike the present application. In addition, it is specified that the mixtures according to this application allow the good dispersion of zinc oxide particles having a size less than 100 nm. The examples presented in said application describe the implementation of zinc oxide particles having diameters of 20 nm and lengths of 100 nm.

[0013] Patent application EP3222268, filed in the name of the company SAKAMOTO YAKUHIN KOGYO CO, discloses sunscreen compositions comprising zinc oxide particles having a particular coating, but unlike the present application, these are mixed with titanium oxide. In addition, these particles are dispersed in W / O type emulsions.

[0014] Similarly, in application WO2016121761, filed in the name of the company SAKAI CHEMICAL IND CO, the possibility of dispersing nanometric metal oxides in oils is presented, by adding polyhydroxystearic acid. These particles can be zinc oxide with a size between 10 nm and 100 nm. Finally, these particles are used in emulsions and they can be formulated in the presence of silicone derivatives. These last two points are completely avoided in the sunscreen compositions according to the present application since these compounds are not biosourced.

[0015] Another solution described in the prior art consists of preparing sunscreen compositions containing only zinc particles, nanometric and non-nanometric, but dispersed using silicone derivatives such as siloxane derivatives (PDMS, dimethicone, etc.) or silane derivatives.

[0016] This is for example the case of application EP3342755, in which sunscreen compositions are disclosed, in emulsion form, composed of 15% by mass of zinc oxide, having a size between 10 and 350 nm, and more than 20% by mass of silicone compounds. The presence of this type of derivative does not allow for the claim of certified BIO sunscreen compositions; and some of these products, such as cyclopentasiloxane (silicone D5), are suspected of having harmful effects on the health of users and on the environment.

[0017] There is currently no water-free sunscreen composition comprising only non-nanometric zinc oxide as a mineral sunscreen and providing satisfactory sun protection greater than or equal to SPF 30.

[0018] In the present application, an SPF protection index is a protection index which represents the level of protection of a sunscreen product. The higher it is, the greater the photoprotection action. The SPF index measures the blocking power of UVB rays, the rays mainly responsible for sunburn.

[0019] These protection indices are the ratio between the exposure time required to induce sunburn with and without cream. If, for example, a person shows redness after 5 minutes of exposure without sun protection, Applying an SPF 50 sunscreen allows you to multiply this exposure time by 50 before getting sunburn (5 minutes * 50 = 250 minutes).

[0020] The invention relates to a water-free sunscreen composition suitable for topical use, comprising non-nanometric zinc oxide suspended in a cosmetically and / or dermatologically acceptable lipophilic vehicle, said sunscreen composition not comprising titanium oxide.

[0021] Said composition is stable, that is to say that the zinc oxide particles suspended in the lipophilic vehicle do not sediment when the composition is left to stand for more than 12 hours.

[0022] The mass content of zinc oxide in the composition according to the invention is within a range from 10 to 40% relative to the total mass of the solar composition.

[0023] In one embodiment, the mass content of zinc oxide in the composition is in a range from 15 to 25% relative to the total mass of the solar composition.

[0024] In one embodiment, the sunscreen composition according to the invention is free of polyvinylpyrrolidone and / or its derivatives.

[0025] In one embodiment, the sunscreen composition according to the invention is free of volatile or non-volatile silicone compounds.

[0026] In one embodiment, the sunscreen composition according to the invention is free of wax having a melting temperature in a range from 35 to 72°C.

[0027] In one embodiment, the sunscreen composition according to the invention comprises only biosourced compounds.

[0028] In one embodiment, the sunscreen composition according to the invention has an SPF protection index greater than or equal to 20.

[0029] In one embodiment, the sunscreen composition according to the invention has an SPF protection index greater than or equal to 25.

[0030] In one embodiment, the sunscreen composition according to the invention has an SPF protection index greater than or equal to 30.

[0031] In one embodiment, the sunscreen composition according to the invention has an SPF protection index in a range from 20 to 50.

[0032] In one embodiment, the sunscreen composition according to the invention has an SPF protection index in a range from 25 to 50.

[0033] In one embodiment, the sunscreen composition according to the invention has an SPF protection index in a range from 30 to 50.

[0034] In one embodiment, the sun composition according to the invention is characterized in that the cosmetically and / or dermatologically acceptable lipophilic vehicle comprises at least one excipient selected from the group comprising caprilyc / capric triglyceride, polyhydroxystearic acid.

[0035] In one embodiment, the mass content of caprilyc / capric triglyceride is in a range from 19 to 35% relative to the mass of the sunscreen composition.

[0036] In one embodiment, the mass content of polyhydroxystearic acid is within a range of 1 to 5% relative to the total mass of the sunscreen composition.

[0037] In one embodiment, the sunscreen composition according to the invention is characterized in that the cosmetically and / or dermatologically acceptable lipophilic vehicle further comprises an excipient chosen from the group of alkanes.

[0038] In one embodiment, the mass content of alkane is within a range of 1 to 5% relative to the mass of the solar composition.

[0039] In one embodiment, the excipient selected from the group of alkanes is dodecane.

[0040] In one embodiment, the sun formulation according to the invention comprises at least one emollient chosen from the group consisting of monoesters of saturated or unsaturated fatty carboxylic acids, comprising from 2 to 30 carbon atoms, which may carry an alcohol function, with alcohols carrying from 2 to 30 carbon atoms, linear, branched, saturated or unsaturated.

[0041] In one embodiment, the monoester emollient is selected from the group consisting of isoamyl laurate, coco-caprylate, cetyl 2-ethylhexanoate, 2-hexyldecylstearate, 2-hexyldecyllaurate, isodecyl neopentanoate, isononyl isononanoate, 2-ethylhexyl palmitate, 2-ethylhexyl stearate, isopropyl myristate, isopropyl palmitate, isopropyl stearate, isopropyl isostearate, isopropyl oleate, butyl stearate, isooctyl stearate, octyl stearate (purcellin oil), isononyl stearate, isocetyl stearate, isononyl isononanoate, isotridecyl isononanoate, cetearyl isononanoate, hexyl laurate, 2-ethylhexyl laurate, 2-ethylhexyl isostearate, 2-octyldecyl myristate, isostearyl neopentanoate, tridecyl neopentanoate, 2-ethylhexyl cocoate, 2-octyldodecyl palmitate, butyloctanoic acid-2-butyloctanoate,diisotridecyl acetate, n-butyl stearate, n-hexyl laurate, n-decyl oleate, oleyl oleate, oleyl erucate, erucyl oleate and erucyl erucate, alone or in mixture.

[0042] In one embodiment, the sunscreen formulation according to the invention comprises isoamyl laurate and / or coco-caprylate.

[0043] In one embodiment, the sun formulation according to the invention is characterized in that it further comprises at least one vegetable oil.

[0044] In a way of realization, the solar formulation according to the invention is characterized by the fact that at the end of the day a vegetable crop is extraite from all parts of the vegetable crop chosen in the group consisting of Passiflore Edulis Seed, Sesamum Indicum Seed, Cocos nucifera, Carthamus Tinctorius Seed, Helianthus Annuus Seed, Cyperus esculentus, Punica granatum, Prunus armeniaca, Crambe abyssinia, Euterpe oleracea, Prunus dulcis, Carapa guaianensis, Argania spinosa, Hippophae rhamnoides, Persea gratissima, Avena Sativa, Orbignya oleifera, Adansonia digitata, Mauritia flexuosa, Camélia sinensis, Camelina sativa, Carthamus tinctorius, Ribes nigrum, Prunus Cerasus, Cannabis sativa, Cucumis sativis, Gossypium herbaceum, Vaccinium ma-crocarpon, Balanites roxburghii, Opuntia ficus indica, Rubus idaeus, Passiflore incamata, Triticum vulgare, Hibiscus sabdariffa, Plukenetia volubilis, Simmondsia chinensis, Pongamia glabra, Aleurites moluccana, Macadamia integrifolia,Sclerocarya birrea, Citrullus vulgaris, Corylus avellana, Bertholletia excelsa, Butyrospermum parkii, Olea europaea, Oenothera biennis, Elaeis guineensis, Vitis vinifera, Perilla frutescens, Caryocar coriaceum, Pentaclethra macroloba, Ricinus communis, Rosa ru-biginosa, Pouteria sapota, Oryza sativa, Solanum lycopersicum, Calodendrum capense, alone or in combination. ,

[0045] In one embodiment, the sun formulation according to the invention is characterized in that said at least one vegetable oil is extracted from any part of the plant species chosen from the group consisting of Passiflora Edulis Seed, Sesamum Indicum Seed, Cocos nucifera, Carthamus Tinctorius Seed, Helianthus Annuus Seed, alone or in combination.

[0046] In one embodiment, the sun formulation according to the invention is characterized in that it comprises a mixture of vegetable oils extracted from any part of the plant species chosen from the group consisting of Passiflora Edulis Seed, Sesamum Indicum Seed and / or Helianthus Annuus Seed.

[0047] In one embodiment, the sun formulation according to the invention is characterized in that it comprises a mixture of vegetable oils extracted from any part of the plant species chosen from the group consisting of Passiflora Edulis Seed, Carthamus Tinctorius Seed, Helianthus Annuus Seed and / or Cocos nucifera.

[0048] In one embodiment, the sun formulation according to the invention is characterized in that it comprises a mixture of vegetable oils extracted from any part of the plant species chosen from the group consisting of Passiflora Edulis Seed, Carthamus Tinctorius Seed, Helianthus Annuus Seed and / or Cocos nucifera.

[0049] An "alkane" is a saturated hydrocarbon consisting solely of carbon and hydrogen atoms linked together by simple covalent bonds, the general formula of which is CnH2n+2-

[0050] A "linear alkane" is an alkane in which each carbon atom is linked at most two carbon atoms.

[0051] A “branched alkane” is an alkane in which certain carbon atoms are linked to three or even four carbon atoms.

[0052] A "Cx alkane" is an alkane consisting of x carbon atoms, said alkane being able to be linear or branched. For example, dodecane is a C12 alkane.

[0053] In one embodiment, the solar formulation according to the invention comprises at least one alkane which can be linear or branched in C8-Ci6.

[0054] In one embodiment, the solar formulation according to the invention comprises at least one alkane which may be linear in C8-Ci6.

[0055] In one embodiment, the solar formulation according to the invention comprises a lesser alkane being dodecane.

[0056] In one embodiment, the sun formulation according to the invention is characterized in that it comprises at least one film-forming polymer and / or copolymer.

[0057] For the purposes of the present invention, the term film-forming polymer or film-forming copolymer means a polymer or copolymer capable of forming a macroscopically continuous film, in particular on the skin, within the scope of our invention.

[0058] In one embodiment, the sun formulation according to the invention is characterized in that the film-forming polymer is chosen from the group comprising: polyesters, polyamides and / or polyurethanes.

[0059] In one embodiment, the sunscreen formulation according to the invention comprises a film-forming copolymer.

[0060] In one embodiment, this film-forming copolymer is Capryloyl Glycerin / Sebacic Acid Copolymer. This copolymer also has the advantage of improving the sun protection of the sunscreen formulation according to the invention.

[0061] In one embodiment, the sun formulation according to the invention further comprises at least one gelling agent.

[0062] In one embodiment, the sun formulation according to the invention further comprises at least one gelling agent chosen from the group comprising organic gelling agents, polymeric gelling agents, and / or mixtures thereof.

[0063] In one embodiment, the sun formulation according to the invention further comprises at least one gelling agent of plant origin.

[0064] In one embodiment, the sun formulation according to the invention is characterized in that the polymeric gelling agent is chosen from the group comprising: polyesters and their derivatives, polyamide resins, polyurethanes and / or their mixtures.

[0065] In one embodiment, the sun formulation according to the invention is characterized in that the polyester gelling agent is chosen from the group comprising polyesters resulting from the esterification reaction between the following polyglycerol derivatives: diglycerol, triglycerol, tetraglycerol, pentaglycerol, hexaglycerol, heptaglycerol, octa- glycerol, nonaglycerol, decaglycerol, hexadecaglycerol, octadecaglycerol, and / or eicosa-glycerol; and the following monocarboxylic acid derivatives: acetic acid, pro-pionic acid, butyric acid, valeric acid, capric acid, caprylic acid, 2-ethylhexanoic acid, isononanic acid, capric acid, lauric acid, myristic acid, isomyristic acid, palmitic acid, isopalmitic acid, stearic acid, isostearic acid, ricinoleic acid, oleic acid, linoleic acid, linolenic acid, arachidic acid, isoarachidic acid, behenic acid, and / or erucic acid.

[0066] In one embodiment, the sun formulation according to the invention is characterized in that the polyester gelling agent is chosen from the group comprising polyesters resulting from the esterification reaction between the following polyglycerol derivatives: di-glycerol, triglycerol, tetraglycerol, pentaglycerol, hexaglycerol, heptaglycerol, octa-glycerol, nonaglycerol, decaglycerol, hexadecaglycerol, octadecaglycerol, and eicosa-glycerol and the following dicarboxylic acid derivatives: oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, dimethyloctadecanedioic acid, eicosanedioic acid, phthalic acid, isophthalic acid, terephthalic acid, and / or maleic acid.

[0067] In one embodiment, the sun formulation according to the invention is characterized in that the polyester gelling agent is chosen from the group comprising trihydroxystearin, PLANDOOL™ G, PLANDOOL™ H, LUSPLAN™ DD-DA5 and / or LUSPLAN™DD-DA7.

[0068] In one embodiment, the sun formulation according to the invention is characterized in that the polyurethane gelling agent is ESTOGEL® GREEN.

[0069] In one embodiment, the sun formulation according to the invention is characterized in that the polyester gelling agent is trihydroxystearin.

[0070] In one embodiment, the sun formulation according to the invention comprises at least one antioxidant agent or free radical scavenger.

[0071] In one embodiment, the sun formulation according to the invention comprises at least one antioxidant agent chosen from the group consisting of ascorbic acid (vitamin C) and ascorbic acid derivatives.

[0072] In one embodiment, the sunscreen formulation according to the invention comprises at least one antioxidant agent chosen from the group consisting of ascorbic acid and its salts, fatty acid esters of ascorbic acid, magnesium ascorbyl phosphate, sodium ascorbyl phosphate and ascorbyl sorbate.

[0073] In one embodiment, the sun formulation according to the invention comprises at least one antioxidant agent chosen from the group consisting of tocopherol (vitamin E) and tocopherol derivatives.

[0074] In one embodiment, the solar formulation according to the invention comprises at least at least one antioxidant agent selected from the group consisting of tocopherol, tocopherol sorbate, tocopherol acetate and tocopherol esters.

[0075] In one embodiment, the sunscreen formulation according to the invention comprises at least one antioxidant agent selected from the group consisting of butylated hydroxybenzoic acids and their salts, peroxides including hydrogen peroxide and perborate, thioglycolates, persulfate salts, 6-hydroxy-2,5,7,8-tetramethylchromane-2-carboxylic acid, gallic acid, alkyl esters of gallic acid, propyl gallate, uric acid, uric acid salts, alkyl esters of uric acid, sorbic acid, sorbic acid salts, lipoic acid, amines, N,N-diethylhydroxylamine, amino-1-guanidine, sulfhydryl compounds, glutathione, dihydroxyfumaric acid, acid salts dihydroxy-fumaric acid, lysine pidolate, amino acids, silymarin, lysine, 1-methionine, proline, superoxide dismutase, olive extracts, tea extracts, polyphenols, pine bark proanthocyanidin,carotenoids, curcumin compounds, tetrahydrocurcumin, L-2-oxo-4-thiazolidine carboxylic acid (OCTA), melanin, rosemary extracts and grape skin / seed extracts.

[0076] In one embodiment, the sunscreen formulation according to the invention is characterized in that it further comprises at least one Karanja vegetable oil derivative to improve the sun protection of the formulation according to the invention.

[0077] In one embodiment, the Karanja vegetable oil derivative is pongamol.

[0078] In one embodiment, the solar formulation according to the invention is characterized in that it further comprises at least one perfume.

[0079] In one embodiment, the at least one fragrance is monoi.

[0080] In one embodiment, the at least one fragrance is selected from the group made up of essential oils.

[0081] Among the essential oils used are essential oils of lavender, neroli, mandarin, peppermint, palmarosa, tea tree and / or rosemary.

[0082] The invention also relates to the cosmetic use of the sunscreen composition defined above for reducing photoaging of healthy skin and / or reducing unsightly and / or uncomfortable manifestations of healthy skin linked to exposure to the sun, such as pigment spots, tightness, dryness, redness.

[0083] The invention also relates to the composition defined above for its therapeutic and / or dermatological use.

[0084] The invention also relates to the composition defined above and its therapeutic and / or dermatological use for protecting the skin, mucous membranes and / or appendages from solar radiation.

[0085] The invention also relates to the composition and the process for preparing a solar composition defined above comprising the following steps: • At least one cosmetically and / or dermatologically acceptable lipophilic vehicle is available; • The said vehicle is heated to a temperature of at least 30°C; • Non-nanometric zinc oxide is added; • Stir for at least 15 minutes during the re-restoration phase. coldness.

[0086] In one embodiment, additional fat-soluble excipients are added to the vehicle before the heating phase or during the cooling phase.

[0087] After complete cooling, the composition according to the invention is packaged in bottles.

[0088] The invention also relates to a sun spray comprising the sun composition according to the invention.

[0089] Examples of anhydrous sunscreen formulations containing only Zinc oxide.

[0090] Example 1: Manufacturing protocol for anhydrous solar formulations 1. Weigh mixture A and heat it to 55°C while stirring for 30 min. 2. Prepare mixture B. Heat the oil to 75°C. Once the oil is hot, add the Pongamol and mix for 15 minutes with a magnetic bar. 3. Add mixture B to A and keep at 55°C for 10 min 4. Add the filter and mix for 10 minutes while stirring. 5. Turn off the heat and continue stirring. 6. From 35°C, add mixture D

[0091] Example 2: Sun formula with an SPF50 index without gelling agent SPF 50 gelling-free sunscreen formula Mixture Commercial reference INC reference! Mass percentage (%) A HV Passion fruit ORGANIC Passiflora Edulis Seed Oil 1.00 A Lexfilm Sun Naturel MB Capryioyl Glycerin / Sebacic Acid Copolymer 5.00 A Dry Touch Dodecane 5.64 A Caprylis without palm Caprylic / Capric Triglyceride 7.20 A HV ORGANIC deodorized sesame Sesamum Indicum Seed Oil 23.10 A Isoamyl La u rate Isoamyl Laurate 8.75 A Applecare PDS 300 Caprylic / Capric Triglyceride, Polyhydroxystearic Acid, Isostearic Acid, Lecithin, Polyglyceryl-3 Polyricinoleate 2.00 B Pongamol Pongamol 0.25 B Coco Silicone Coco-Caprylate, Tocopherol, Helianthus Annuus Seed Oil 4.00 C Xperse 102 Zinc Oxide, Caprylic / Capric Triglyceride, Polyhydroxystearic Acid 41.66 D Mono! sandalwood for sunscreen Perfume 1.20 D Vitamin E Helianthus Annuus Seed Oil, Tocopherol 0.20 Total 100.00

[0093] Example 3: Sun formula with an SPF50 index containing a gelling agent A SPF 50 sun formula with gelling agent A Mixture Commercial reference INCI reference Mass percentage {%) A HV Organic Passion Fruit Passiflore Edu lis Seed Oil 1.00 A Isoamyl Laurate Isoamyl Laurate 8.75 A HV Organic Sesame deodorized Sesamum Indicum Seed Oil 20.60 A Lexfiîm Sun Naturel MB Capryloyl Glycerin / Sebacic Acid Copolymer 5.00 A Dry Touch Dodecane 5.64 A Caprylis palm-free Caprylic / Capric Triglyceride 7.20 A Estogel Green Hydrogenated Castor Oil / Sebacic Acid Copolymer (gelling agent A) 2.50 A Applecare PDS 300 Caprylic / Capric Triglyceride, Polyhydroxystearic Acid, Isostearic Acid, Lecithin, Polyglyceryl-3 Polyricinoleate 2.00 B Coco Silicone Coco-Caprylate, Tocopherol, Heilianthus Annuus Seed Oil 4.00 B Pongamol Pongamol 0.25 C 0.20 Total 100.00

[0095] Example 4: Sun formula with an SPF50 index containing a gelling agent B Sun formula SPF 50 / gelling agent B Mixture Commercial reference INCI reference Mass percentage (%) A Isoamyl Laurate Isoamyl Laurate 6.00 A Caprylis palm-free Caprylic / Capric Triglyceride 14.30 A Dry Touch Dodecane 9.39 A Trihydroxystearin Trihydroxystearin (gelling agent B) 1.40 A Organic Passion Fruit Oil Passiflore Edulis Seed Oil 3.00 A Applecare PDS 300 Caprylic / Capric Triglyceride, Polyhydroxystearic Acid, Isostearic Acid, Lecithin, Polyglyceryl-3 Polyricinoleate 2.00 A Organic Safflower Oil Carthamus Tinctorius Seed Oil 17.00 B Caprylis palm-free Caprylic / Capric Triglyceride 4.00 B Pongamol Pongamol 0.25 C Xperse 102 Zinc Oxide, Caprylic / Capric Triglyceride, Polyhydroxystearic Acid 41.66 D Vitamin E Helianthus Annuus Seed Oil, Tocopherol 0.20 D Coconut Water RT60349 Cocos Nucifera Water 0.80 Total 100.00

[0097] Example 5: Sun formula with an SPF30 index without gelling agent Sun formula SPF 30 Mix Commercial reference INCI reference Mass percentage (%) A Isoamyl Laurate Isoamyl Laurate 8.75 A HV Organic deodorized sesame Sesamum Indicum Seed Oil 24.76 A Lexfilm Sun Natural MB Capryloyl Glycerin / Sebacic Acid Copolymer 5.00 A Caprylis palm-free Caprylic / Capric Triglyceride 14.20 A HV Organic passion fruit Passiflora Edulis Seed Oil 1.00 A Dry Touch Dodecane 5.64 B Coco Silicone Coco-Caprylate, Tocopherol, Helianthus Annuus Seed Oil 4.00 B Pongamol Pongamol 0.25 C Xperse 102 Zinc Oxide, Caprylic / Capric Triglyceride, Polyhydroxystearic Acid 35.00 D Mono! sandalwood for sunscreen Perfume 1.20 D Vitamin E Helianthus Annuus Seed Oil, Tocopherol 0.20 Total 100.00

[0099] Example 6: Sun formula with an SPF30 index containing a gelling agent A Sun formula SPF 30 / gelling agent A Mixture Commercial reference INCI reference Mass percentage (%} A Isoamyl Laurate Isoamyl Laurate 8.75 A Dry Touch Dodecane 5.64 A HV Organic deodorized sesame Sesamum Indicum Seed Oil 21.76 A Lexfilm Sun Natural MB Caprylic / Capric Glycerin / Sebacic Acid Copolymer 5.00 A Caprylis palm-free Caprylic / Capric Triglyceride 14.20 A Estogel Green Hydrogenated Castor Oil / Sebacic Acid Copolymer (gelling agent A) 3.00 A HV Organic passion fruit Passiflora Edulis Seed Oil 1.00 B Coco Silicone Coco-Caprylate, Tocopherol, Helianthus Annuus Seed Oil 4.00 B Pongamol Pongamol 0.25 C Xperse 102 Zinc Oxide, Caprylic / Capric Triglyceride, Polyhydroxystearic Acid 35.00 D Vitamin E Helianthus Annuus Seed Oil, Tocopherol 0.20 D Monoi Sandalwood for sunscreen Perfume 1.20 Total 100.00

[0101] Example 7: Sun formula with an SPF30 index containing a gelling agent B SPF 30 sun formula / gelling agent B Mixture Commercial reference INC reference! Mass percentage (%) A Trihydroxystearin Trihydroxystearin (gelling agent B) 1.20 A HV passion fruit ORGANIC Passiflora Edulis Seed Oil 3.00 A Dry Touch Dodecane 16.35 A Caprylis without palm Capry lic / Capric Triglyceride 16.20 A HV Safflower ORGANIC Carthamus Tinctorïus Seed Oil 17.00 A Gosulin IL MB Isoamyl Laurate / lsoamyl Cocoate 10.00 B Assure + Pongamol 0.25 B Palm-free Caprylis Caprylic / Capric Triglyceride 10.00 C RT60349 Cocos Nucifera Water 0.80 Total 100.00

Claims

Claims

1. A water-free sunscreen composition suitable for topical use, comprising non-nanometric zinc oxide suspended in a cosmetically and / or dermatologically acceptable lipophilic vehicle, said sunscreen composition not comprising titanium oxide.

2. A sunscreen composition according to claim 1, wherein the mass content of zinc oxide is in a range from 10 to 40% relative to the total mass of the sunscreen composition.

3. Sunscreen composition according to claim 1 to 2, characterized in that it is free from polyvinylpyrrolidone and / or its derivatives.

4. Sunscreen composition according to claims 1 to 3, characterized in that it is free from wax having a melting temperature in a range from 35 to 72°C.

5. Sunscreen composition according to any one of the preceding claims, characterized in that it has an SPF protection index greater than or equal to 20.

6. Sun composition according to any one of the preceding claims, characterized in that the cosmetically and / or dermatologically acceptable lipophilic vehicle comprises at least one excipient chosen from the group comprising caprilyc / capric triglyceride, polyhydroxystearic acid.

7. Sun composition according to claim 6, characterized in that the mass content of caprilyc / capric triglyceride is within a range of 19 to 35% relative to the mass of the sun composition.

8. Sunscreen composition according to claims 6 to 7, characterized in that the mass content of polyhydroxystearic acid is within a range of 1 to 5% relative to the total mass of the sunscreen composition.

9. Sun composition according to any one of the preceding claims, characterized in that the cosmetically and / or dermatologically acceptable lipophilic vehicle further comprises an excipient chosen from the group of alkanes.

10. Solar composition according to claim 9, characterized in that the mass content of alkane is within a range of 1 to 5% relative to the mass of the solar composition.

11. Solar composition according to claims 9 to 10, characterized in that the alkane is dodecane.

12. Cosmetic use of the sun composition according to any one of the preceding claims, for reducing photoaging of healthy skin and / or reducing unsightly and / or uncomfortable manifestations of healthy skin linked to exposure to the sun, such as pigment spots, tightness, dryness, redness.

13. Sunscreen composition according to any one of claims 1 to 11, for its therapeutic and / or dermatological use.

14. Sunscreen composition for its therapeutic and / or dermatological use according to claim 13, to protect the skin, mucous membranes and / or appendages from solar radiation.

15. Process for preparing a sunscreen composition according to any one of the preceding claims 1 to 14, comprising the following steps: At least one cosmetically and / or dermatologically acceptable vehicle is provided; Said vehicle is heated to a temperature at least equal to 30°C; Non-nanometric zinc oxide is added; Stirring is maintained for at least 15 minutes during the cooling phase.