Cosmetic composition comprising hydrophilic or water-dispersible organic UVA filters

Abstract

The present invention relates to a composition, particularly a cosmetic composition, comprising the following in a physiologically acceptable medium: at least one hydrophilic or water-dispersible organic filter capable of absorbing UV from 320 to 400 nm (UVA); and at least one specific polysaccharide.

Description

[0001] Cosmetic composition comprising hydrophilic or water-dispersible organic UVA filters

[0002] The present invention relates to novel compositions, particularly cosmetic compositions, comprising, in a pharmaceutically acceptable medium, at least one hydrophilic or water-dispersible filter capable of absorbing UV from 320 to 400 nm (UVA) and at least one specific polysaccharide.

[0003] It is known that radiation with wavelengths between 280 nm and 400 nm enables tanning of the human epidermis.

[0004] It is also known that UVA rays with a wavelength of between 320 and 400 nm penetrate into the skin into the skin more deeply than UVB rays (radiation with wavelengths between 280 and 320 nm). Moreover, UVB rays can cause sunburn. UVA rays cause immediate and persistent tanning of the skin. Daily exposure to UVA rays, even of short duration, under normal conditions, can damage collagen and elastin fibers, which results in a modification of the microrelief of the skin and irregular pigmentation (spots and uneven complexion). Exposure to UVA can particularly lead to a harmful change in the biomechanical properties of the epidermis, resulting in the appearance of wrinkles leading to premature aging of the skin.

[0005] A wide variety of photoprotective compositions to protect keratin materials and particularly the skin, against the harmful effects induced by UVA and / or UVB radiation, are already known in the prior art. Essentially, they contain a combination of several organic or inorganic UV filters, carried in the oily phase and / or the aqueous phase as an anti-UV active agent and are generally provided in an emulsion or gel or oil type dosage form.

[0006] It is also known that high filter levels are necessary to attain high level degrees of filtering effectiveness.

[0007] However, high UV filter levels are not suitable for production of compositions that have a stable and pleasing texture.

[0008] Thus, formulations with a high filtering power generally have uncomfortable or even unpleasant sensory aspects masking the freshness and comfort of the formulas. In particular, the weakness of photoprotective formulations with a high protection index is often a significantly greasy and / or tacky sensation, and therefore a lack of lightness of the textures obtained, but also a white appearance on application and therefore not invisible on the skin. Indeed, most photoprotective formulations with a high protection index often contain high levels of lipophilic UV filters, which leads to a greasy feeling on application, which is unpleasant. Also, hydrophilic UV filters are preferable to use.

[0009] However, the introduction of hydrophilic or water-dispersible UV filters at high levels generally causes destabilization problems. Indeed, hydrophilic or water-dispersible UV filters behave like electrolytes in formulation; it is therefore not easy to gel the aqueous phase of compositions comprising these filters.

[0010] Aqueous dosage forms have already been considered to mitigate the above- mentioned undesirable effects, and in particular to obtain a fresh effect on application while being invisible on the skin. These aqueous compositions contain hydrophilic (or water- soluble) UV filters, but they are generally tacky, which limits their use.

[0011] Hence, there is a need for a photoprotective composition comprising an aqueous phase with a high degree of UV protection that is perfectly stable and homogeneous, i.e. not subject to demixing phenomena.

[0012] There is still a need for a photoprotective composition comprising an aqueous phase with a high degree of UV protection and having good sensory properties (especially no greasiness on application), in particular having significantly reduced tackiness.

[0013] There is also still a need for a photoprotective composition comprising an aqueous phase with a high level of UV protection that is also transparent, in particular after application on the skin.

[0014] There is also still a need for a photoprotective composition comprising an aqueous phase that has a gelled texture, more suitable for being spread on the skin.

[0015] The aim of this invention is to provide novel cosmetic compositions providing a solution to these problems.

[0016] In particular, the aim of the present invention is that of providing novel compositions, in particular cosmetic compositions, comprising an aqueous phase comprising hydrophilic or water-dispersible organic UVA filters, that are stable and homogeneous, and exhibit good sensory properties on application, in particular with a less greasy sensation, and have little or no tackiness. Furthermore, these compositions have a gelled texture, i.e. they are in gel form.

[0017] The present invention thus relates to a composition, particularly a cosmetic composition, comprising, in a physiologically acceptable aqueous medium: at least one hydrophilic or water-dispersible organic filter capable of absorbing UV from 320 to 400 nm (UVA); and at least one polysaccharide from red algae wherein the number of sulfate(s) per monomer is less than or equal to 2.

[0018] “Physiologically acceptable medium” means a medium compatible with keratin materials. “Keratin materials” means the skin and / or lips and / or hair.

[0019] The composition according to the invention has good stability. This stability can be assessed macroscopically and / or microscopically, after storage for one week, one month, or two months, at ambient temperature (25°C), at 4°C, at 45°C, or at 55°C. A stable composition generally retains its pleasantness and its sensory signature on application over time. More specifically, the stability of a composition can be assessed qualitatively for example by the lack of phase separation or crystal appearance phenomenon, or quantitatively by monitoring the evolution of parameters such as viscosity or pH.

[0020] Preferably, the composition according to the present invention is transparent or translucent. According to some preferred embodiments, the composition according to the invention is a transparent composition.

[0021] The term transparent or translucent composition as used in the context of this invention means a composition with a turbidity value of less than 800 NTU, preferably less than 500 NTU, preferably less than 200 NTU, preferably less than 150 NTU, and preferably less than 100 NTU. Preferably, the turbidity of the compositions is equal to at least 1 NTU.

[0022] NTUs (nephelometric turbidity units) are units for measurement of the turbidity of a composition. The turbidity measurement is made, for example, with a model 2100P turbidity meter from Hach Company, the tubes used for the measurement being referenced AR397A cat 24347-06. The measurements are made at ambient temperature (from 20°C to 25°C).

[0023] Preferably, the composition is transparent and has a turbidity value equal to between 1 and 200 NTU, preferably between 1 and 150 NTU, and preferably less than 100 NTU.

[0024] Preferably, the composition is transparent after application on the skin, i.e. there is no white mark after spreading the composition on the skin.

[0025] The present invention also relates to a non-therapeutic cosmetic treatment method of keratin materials, preferably the skin, comprising application of a composition according to the invention on said keratin materials.

[0026] Hydrophilic or water-dispersible organic filters capable of absorbing UV from 320 to

[0027] 400 nm The composition according to the invention comprises at least one hydrophilic or water-dispersible organic filter capable of absorbing UVA.

[0028] Preferably, the composition according to the invention comprises at least one hydrophilic (or water-soluble) organic filter capable of absorbing UVA.

[0029] “Hydrophilic organic filter” or “water-soluble organic filter” means any organic filter capable of being totally dissolved in molecular form in a liquid aqueous phase.

[0030] “Water-dispersible organic filter” means any organic filter capable of forming in a liquid aqueous phase a homogeneous suspension of particles of volume average size of less than 100 microns. The volume average size is determined by laser diffraction granulometry.

[0031] Among the water-soluble filters capable of absorbing UVA, mention can be made of: Methylene bis-(hydroxyphenyl benzotriazole) compounds:

[0032] Methylene bis-Benzotriazolyl Tetramethylbutylphenol in the form of an aqueous dispersion of micronized particles with a volume average particle size varying from 0.01 to 5 pm, and more preferably from 0.01 to 2 pm, and more particularly from 0.020 to 2 pm, with at least one alkylpolyglycoside surfactant having the structure CnH2n+i O(C6H10O5)xH wherein n is an integer from 8 to 16 and x is the average degree of polymerization of the unit (C6H10O5) and varies from 1.4 to 1.6 such as the aqueous dispersions described in patent GB-A-2 303 549, particularly the product sold under the trade name “Tl NOSORB® M” by BASF, or in the form of an aqueous dispersion of micronized particles with a volume average particle size varying from 0.02 to 2 pm, and more preferably from 0.01 to 1.5 pm, and more particularly from 0.02 to 1 pm, in the presence of at least one polyglycerol mono-(C8- C20)alkyl-ester with a degree of polymerization of glycerol of at least 5 such as the aqueous dispersions described in application W02009 / 063392, particularly the product marketed under the trade name Tinosorb WPGL by BASF,

[0033] Triazine compounds:

[0034] - 3,3’-(1 ,4-Phenylene)bis(5,6-diphenyl-1 ,2,4-triazine), with the INCI name Phenylene Bis- Diphenyl triazine, particularly marketed under the name Triasorb by Pierre Fabre;

[0035] - Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine in its water-dispersible form with the INCI name Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine (and) Acrylates / C 12-22 Alkyl Methacrylate Copolymer, under the trade name TINOSORB® S LiteAqua by BASF,

[0036] - symmetrical triazine filters substituted by naphthalenyl groups or polyphenyl groups used in micronized form (average particle size from 0.02 to 3 pm) which can be obtained for example according to the micronization method described in applications GB-A-2 303 549 and EP-A-893119, and particularly in aqueous dispersion form, in particular 2,4, 6-tris(bi- phenyl)-triazine and 2,4,6-tris(ter-phenyl)-triazine marketed under the trade name Tl NOSORB® A2B by BASF and which is used in patent applications W006 / 035000, WO06 / 034982, W006 / 034991 , W006 / 035007, W02006 / 034992, W02006 / 034985.

[0037] Among hydrophilic (or water-soluble filters) capable of absorbing UVA, mention can be made of:

[0038] Terephthalylidene Dicamphor Sulfonic Acid manufactured under the name “MEXORYL SX®” by CHIMEX; bis-benzoazolyl derivatives as described in EP 669 323, and US 2,463,264 and more specifically the compound Disodium Phenyl Dibenzimidazo Tetrasulfonate sold under the trade name “NEO HELIOPAN AP” by Haarmann and REIMER.

[0039] The water-soluble organic filter can also be a mixed water-soluble filter capable of absorbing UVA and UVB. Preferably, such a mixed filter is a benzophenone derivative including at least one sulfonic radical, such as in particular:

[0040] Benzophenone-4 sold under the trade name “UVINUL MS 40” by BASF,

[0041] Benzophenone-5, and

[0042] Benzophenone-9.

[0043] Preferably, the water-soluble organic filter capable of absorbing UVA is chosen from Terephthalylidene Dicamphor Sulfonic Acid, bis-benzoazolyl derivatives, in particular Disodium Phenyl Dibenzimidazole Tetrasulfonate, Benzophenone-4, Benzophenone-5, Benzophenone-9, and mixtures thereof.

[0044] Preferably, the water-soluble organic filter capable of absorbing UVA is chosen from Terephthalylidene Dicamphor Sulfonic Acid, Disodium Phenyl Dibenzimidazole Tetrasulfonate, Benzophenone-4, Benzophenone-5, Benzophenone-9, and mixtures thereof.

[0045] Preferably, the water-soluble organic filter capable of absorbing UVA is chosen from Terephthalylidene Dicamphor Sulfonic Acid, bis-benzoazolyl derivatives, in particular Disodium Phenyl Dibenzimidazole Tetrasulfonate, and mixtures thereof.

[0046] Preferably, the water-soluble organic filter capable of absorbing UVA is chosen from Terephthalylidene Dicamphor Sulfonic Acid, Disodium Phenyl Dibenzimidazole Tetrasulfonate, and mixtures thereof. According to a first preferred embodiment, the water-soluble organic filter capable of absorbing UVA is Terephthalylidene Dicamphor Sulfonic Acid (also known as ecamsule).

[0047] According to a second preferred embodiment, the water-soluble organic filter capable of absorbing UVA is Disodium Phenyl Dibenzimidazole Tetrasulfonate (also known as disodium bisdisulizole).

[0048] Preferably, the hydrophilic or water-dispersible organic filter(s) capable of absorbing UVA is (are) present in a quantity of active substance of between 0.1% and 20% by weight, preferably between 0.1 % and 15% by weight relative to the total weight of the composition, preferably between 1% and 10% by weight.

[0049] Polysaccharide

[0050] The composition according to the invention comprises at least one polysaccharide from red algae wherein the number of sulfate(s) per monomer is less than or equal to 2.

[0051] The polysaccharide according to the invention is from red algae and has a number of sulfate(s) less than or equal to 2. “Sulfate” means the group -O-SO3_. “Number of sulfate(s) less than or equal to 2” means that a polysaccharide monomer from red algae according to the invention comprises 0, 1 or 2 sulfate(s).

[0052] Thus, the polysaccharide from red algae according to the invention may not contain any sulfates. Preferably, the polysaccharide from red algae contains no sulfates. Such a polysaccharide is particularly agar.

[0053] Agar is a polysaccharide thickening agent of natural origin, obtained from red algae belonging to the Gelidaceae (Gelidium and Pterocladia) and Gracilariaceae families.

[0054] To prepare agar, in some embodiments, algae are boiled and the broth is filtered. The filtrate thus obtained is cooled, causing it to gel. The gel obtained is then at least partially dehydrated by pressing orfreezing / thawing cycles. The at least partially dehydrated gel is dried, then reduced to powder.

[0055] Agar is a complex mixture of polysaccharides wherein p-1.3 and type a-1.4 type bonds alternate. Mainly, agar comprises a mixture of agarose and agaropectin. Agaropectin is a gelling compound, which is responsible for agar gelling.

[0056] Agar comprises mainly agarose. Agarose is a polysaccharide formed by a chain of D-galactopyranose units linked by a p-1.3 bond alternating with 3.6-anhydro-L- galactopyranose linked by a a-1.4 bond. Agarose is a compound with the following formula (I):

[0057] [Chem 1] wherein n is an integer defining the degree of polymerization of the agar. The molecular weight of a monomer unit (where n=1) of formula (I) is 306.27 g / mol.

[0058] However, the molecular weight is not a relevant technical characteristic to define agar in general, and the agar used according to the invention in particular.

[0059] Agar is a product that is readily available on the market. According to the invention, for example, the agars marketed by Bio-Rad (e.g. reference 166-0600EDU) or by Sigma- Aldrich (e.g. reference L7025) can be used.

[0060] The polysaccharide from red algae according to the invention can also comprise 1 or 2 sulfate(s) per polysaccharide monomer.

[0061] Preferably, the polysaccharide from red algae contains 1 or 2 sulfate(s) per polysaccharide monomer. Such polysaccharides are in particular certain carrageenans, i.e. kappa carrageenans, iota carrageenans or mixtures thereof.

[0062] Carrageenans are polysaccarides that make up the cell walls of various red algae (Rhodophyceae) belonging to the Gigartinaceae, Hypneaceae, Furcellariaceae and Polyideaceae families. They have long anionic polyelectrolyte galactan chains. Their molecular mass can be greater than 106. These linear polymers, formed by disaccharide structural units, are composed of two D-galactopyranose units bonded alternately by a- and P-bonds. They are sulfated polysaccharides and the a-D-galactopyranosyl residues can be in 3’,6’-anhydro form.

[0063] Initially, carrageenans were subdivided into two families according to their solubility in potassium chloride (KCI). The fractions soluble in KCI were designated with “Kappa” prefixes while the terms “Lambda” were reserved for insoluble fractions. Later on, the classifications were based on the number and position of sulfate groups and the presence of the 3’,6’-anhydro bridge on p-D-galactopyranosyl residues. This led to the four main families: K, A, and co.

[0064] The different types of carrageenans do not exist in the pure state, but in the form of hybrids. Thus in the natural state, K and i-carrageenans are in a Kappa-iota hybrid form but one of the two structures may be predominant over the other. The K-I hybrid state of a structure can be elucidated using specific enzymes, that enrich or diminish the content of one of the two forms.

[0065] Kappa (K)-carrageenans have the following structure (number of sulfates per monomer equal to 1):

[0066] [Chem 2]

[0067] Kappa (K)-carrageenans are therefore polysaccharides according to the invention, i.e. from red algae and wherein the number of sulfates is equal to 1. lota (i)-carrageenans have the following structure (number of sulfates per monomer equal to 2):

[0068] [Chem 3] lota (i)-carrageenans are therefore polysaccharides according to the invention, i.e. from red algae and wherein the number of sulfates is equal to 2.

[0069] On the other hand, lambda (A)-carrageenans have the following structure (number of sulfates per monomer equal to 3):

[0070] [Chem 4] Lambda (A)-carrageenans are therefore non-inventive or comparative polysaccharides, i.e. wherein the number of sulfates is equal to 3.

[0071] Preferably, the polysaccharide is chosen from agar, kappa carrageenans, iota carrageenans, and mixtures thereof.

[0072] The polysaccharide from red algae and wherein the number of sulfate(s) is less than or equal to 2 according to the invention can be chemically modified or not. Preferably, the polysaccharide is not chemically modified.

[0073] Preferably, the concentration of polysaccharides used in the compositions according to the present invention ranges, in active substance, from 0.01 to 20%, preferably from 0.01 to 10%, preferably from 0.01 to 5%, preferably from 0.01 to 3%, preferably from 0.1 to 3%, preferably from 0.1 to 1% and preferably from 0.3 to 1 % relative to the total weight of the composition.

[0074] Preferably, the polysaccharide according to the invention is agar. Indeed, with this polysaccharide, as demonstrated in the example, on one hand, the composition according to the invention has a gelled texture with a very low quantity of agar, and on the other, the reduction in the tackiness of the composition is even more pronounced.

[0075] Preferably, the total concentration of polysaccharide(s) used in the compositions according to the present invention ranges from 0.01 to 20%, preferably from 0.1 to 15%, preferably from 0.2 to 10%, preferably from 0.3 to 8%, and even more preferably from 0.3 to 5% by weight relative to the total weight of the composition.

[0076] Preferably, the composition according to the invention only comprises as thickening agent(s) said at least one polysaccharide from red algae wherein the number of sulfate(s) per monomer is less than or equal to 2.

[0077] Preferably, the composition according to the invention is substantially free from carbomer. A carbomer is a polyacrylic acid. It is well-known in cosmetics. By “substantially free”, it is meant that the composition comprises less than 0,5% by weight of carbomer relative to the total weight of the composition, preferably less than 0,3% by weight, preferably less than 0,1 % by weight. Preferably, the composition according to the invention is totally free from carbomer. Aqueous phase

[0078] The composition according to the invention comprises a physiologically acceptable aqueous medium.

[0079] Preferably, the composition according to the invention comprises an aqueous medium comprising at least water.

[0080] The aqueous medium can comprise at least one other organic solvent soluble in water, at 25°C, chosen for example from:

[0081] - C1-C4 monoalkanols. The term “CrC4monoalkanol” means any saturated, linear or branched alkane compound with 1 to 4 carbon atoms and a single hydroxyl (OH) function. CrC4monoalkanols present in the compositions according to the invention can be chosen from methanol, ethanol, propanol, isopropanol, butanol or mixtures thereof. Ethanol will particularly be chosen;

[0082] - polyols particularly with 2 to 20 carbon atoms, preferably 2 to 6 carbon atoms, such as glycerol, diglycerol, propyleneglycol, isoprene glycol, dipropyleneglycol, butylene glycol, hexylene glycol, 1 ,2-propanediol, 1 ,3-propanediol, pentylene glycol, caprylyl glycol, simple sugars, water-soluble polyalkyleneglycols; and

[0083] - mixtures thereof.

[0084] Monoalkanols are generally present in concentrations ranging from 0.2 to 90% by weight, more preferably from 0.5 to 50%, and preferably from 1% to 10% by weight, relative to the total weight of the composition.

[0085] Preferably, the composition according to the invention comprises at least one polyol, particularly as described hereinabove. In particular, the presence of at least one polyol can improve cosmetic properties such as slip during application and reduces tackiness. Preferably, it comprises at least 0.5% by weight of polyol(s) relative to the total weight of the composition, preferably at least 1% by weight of polyol(s) relative to the total weight of the composition, preferably at least 3% by weight of polyol(s) relative to the total weight of the composition, preferably at least 5% by weight of polyol(s) relative to the total weight of the composition, preferably from 10% to 50% by weight, preferably from 15% to 40% by weight, preferably from 18% to 35% and even more preferably from 20% to 30% by weight. Preferably, the composition according to the invention comprises a polyol, preferably glycerin, butylene glycol, propylene glycol, 1 ,2-propanediol, caprylyl glycol, pentylene glycol or dipropylene glycol and mixtures thereof.

[0086] The composition preferably comprises at least 5% by weight of water relative to the total weight of the composition, preferably at least 10% to 99% by weight of water relative to the total weight of the composition, preferably from 20% to 90% by weight, preferably from 30% to 80%, preferably from 40% to 70% by weight.

[0087] Additional UV filters

[0088] The composition according to the invention can further comprise at least one additional UV filter. Of course, said additional filter is different from the hydrophilic or water- dispersible organic filter capable of absorbing UVA.

[0089] The additional UV filter(s) can be chosen from lipophilic organic UV filters, hydrophilic or water-dispersible organic UVB filters, and inorganic UV filters.

[0090] Lipophilic organic UV filters

[0091] The term “lipophilic organic filter” means any organic cosmetic or dermatological compound that filters UV radiation that can be completely dissolved in the molecular state in a liquid oily phase or be solubilized in colloidal form (for example in micellar form) in a liquid oily phase.

[0092] The lipophilic organic UV filters are particularly chosen from cinnamic compounds; anthranilate compounds; salicylic compounds, dibenzoylmethane compounds, benzylidene camphor compounds; benzophenone compounds; p,p-diphenylacrylate compounds; triazine compounds; benzotriazole compounds; benzalmalonate compounds particularly those cited in patent US5624663; benzimidazole derivatives; imidazoline compounds; bis- benzoazolyl compounds as described in patents EP669323 and US 2,463,264; methylene bis-(hydroxyphenyl benzotriazole) compounds as described in applications US5,237,071 , US 5,166,355, GB2303549, DE 197 26 184 and EP893119; benzoxazole compounds as described in patient applications EP0832642, EP1027883, EP1300137 and DE10162844; filter polymers and filter silicones such as those described in particular in application WO- 93 / 04665; a-alkylstyrene-derived dimers such as those described in patent application DE19855649; 4,4-diarylbutadiene compounds such as those described in applications EP0967200, DE19746654, DE19755649, EP-A-1008586, EP1133980 and EP133981 , and mixtures thereof.

[0093] Preferably, the lipophilic organic filter(s) are chosen from salicylic compounds, dibenzoylmethane compounds, benzylidene camphor compounds; benzophenone compounds; triazine compounds; benzotriazole compounds; and mixtures thereof.

[0094] As examples of lipophilic organic photoprotective agents, mention can be made of those referred to hereinafter using their INCI name and / or their chemical name.

[0095] Cinnamic compounds:

[0096] Ethylhexyl Methoxycinnamate particularly sold under the trade name PARSOL® MCX by DSM Nutritional Products,

[0097] Isoamyl p-Methoxycinnamate sold under the trade name NEO HELIOPAN E 1000 ® by Symrise,

[0098] Dibenzoylmethane compounds:

[0099] Butyl Methoxydibenzoylmethane (or avobenzone) particularly sold under the trade name PARSOL® 1789 by DSM Nutritional Products

[0100] Salicylic compounds:

[0101] Homosalate sold under the name “Parsol® HMS” by DSM Nutritional Products, Ethylhexyl Salicylate sold under the name “NEO HELIOPAN OS®” by Symrise, 8,8-diphenylacrylate products:

[0102] Octocrylene particularly sold under the trade name “UVINUL® N 539 T” by BASF, Benzophenone compounds:

[0103] Benzophenone-3 or Oxybenzone, sold under the trade name “UVINUL® M 40” by BASF, Diethylamino hydroxy benzoyl hexyl benzoate sold under the trade name “UVINUL® A Plus” or mixed with ethylhexyl methoxycinnamate sold under the trade name “UVINUL® A Plus B” by BASF,

[0104] Benzylidene camphor compounds:

[0105] 4-Methylbenzylidene camphor sold under the name “EUSOLEX® 6300” by MERCK, Phenyl benzotriazole compounds:

[0106] Drometrizole Trisiloxane manufactured under the name “MEXORYL® XL” by NOVEAL, Methylene bis-(hydroxyphenyl benzotriazole) compounds:

[0107] Methylene bis-Benzotriazolyl Tetramethylbutylphenol particularly in solid form such as the product sold under the trade name “MIXXIM BB / 100 ®” by FAIRMOUNT CHEMICAL, Triazine compounds:

[0108] - Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine sold under the trade name “Tl NOSORB® S” by BASF,

[0109] - Ethylhexyl Triazone particularly sold under the trade name “UVINUL® T 150” by BASF, - Diethylhexyl Butamido Triazone sold under the trade name “UVASORB® HEB” by 3V SIGMA,

[0110] - symmetrical triazine filters substituted by naphthalenyl groups or polyphenyl groups described in patent US6,225,467, application W02004 / 085412 (see compounds 6 and 9) or the document “Symmetrical Triazine Derivatives” IP.COM IPCOM000031257 Journal, INC WEST HENRIETTA, NY, US (September 20, 2004),

[0111] Anthranilic compounds:

[0112] Menthyl anthranilate sold under the trade name “NEO HELIOPAN® MA” by Symrise, Benzalmalonate compounds:

[0113] Polyorganosiloxane with benzalmalonate functions such as Polysilicone-15 sold under the trade name “PARSOL SLX ®” by HOFFMANN LA ROCHE.

[0114] Hydrophilic (or water-soluble) or water-dispersible organic UVB filters

[0115] Preferably, the hydrophilic (or water-soluble) organic filter is a water-soluble organic UVB filter.

[0116] The water-soluble organic UVB filters usable according to the present invention are in particular chosen from water-soluble cinnamic derivatives such as ferulic acid or 3-methoxy- 4-hydroxycinnamic acid; water-soluble benzylidene camphor compounds; water-soluble phenylbenzimidazole compounds; water-soluble p-aminobenzoic compounds (PABA), Glyceryl PABA or PEG-25 PABA sold under the name “UVINUL P25” by BASF; water- soluble salicylic compounds, Benzylidene Camphor Sulfonic Acid manufactured under the name “MEXORYL SL” by CHIMEX, Camphor Benzalkonium Methosulfate manufactured under the name “MEXORYL SO” by CHIMEX, and mixtures thereof.

[0117] As preferred examples of water-soluble organic UVB filters, mention can be made of phenylbenzimidazole compounds, such as 2-phenyl-1 H-benzimidazole-5-sulfonic acid (INCI name: phenylbenzimidazole sulfonic acid) particularly sold under the trade name “EUSOLEX 232®” by MERCK.

[0118] Among the water-dispersible organic UVB filters, mention can be made of the following filters:

[0119] Benzophenone compounds:

[0120] 1 ,T-(1 ,4-piperazinediyl)bis[1-[2-[4-(diethylamino)-2-hydroxybenzoyl]phenyl]-methanone (CAS 919803-06-8) as described in application W02007 / 071584; this compound advantageously being used in micronized form (volume average size of 0.02 to 2 pm) that can be obtained for example using the micronization method described in applications GB- A-2 303 549 and EP-A-893119 and particularly in the form of an aqueous dispersion, Benzoxazole compounds: 2-[4-(1 ,3-benzoxazol-2-yl)phenyl]-1 ,3-benzoxazole, with CAS number 904-39-2.

[0121] Inorganic UV filters

[0122] According to a particular embodiment of the invention, the compositions comprise at least one inorganic UV filter.

[0123] The inorganic UV filters that can be used in accordance with this invention are metal oxide pigments. More preferably, the inorganic UV filters according to the invention are metal oxide particles with an average elementary particle size of less than or equal to 0.5 pm, more preferably between 0.005 and 0.5 pm, and even more preferably between 0.01 and 0.2 pm, even better between 0.01 and 0.1 pm, and especially between 0.015 and 0.05 pm. They are particularly described in Annex VI updated on 09 / 22 / 2021 of European Cosmetic Products Regulation number 1223 / 2009, but are not limited to this list.

[0124] They can be chosen particularly among titanium, zinc, iron, zirconium and cerium oxides or mixtures thereof.

[0125] Such coated or uncoated metal oxide pigments are particularly described in patent application EP-A-0518773. As commercial pigments, mention can be made of the products sold by CRODA, TAYCA, and MERCK.

[0126] The metal oxide pigments can be coated or uncoated.

[0127] Coated pigments are pigments on which one or several chemical, electronic, mechanochemical and / or mechanical surface treatments have been carried out using compounds such as amino acids, beeswax, fatty acids, fatty alcohols, anionic surfactants, lecithins, sodium, potassium, zinc, iron or aluminum salts of fatty acids, metal (titanium or aluminum) alkoxides, polyethylene, silicones, proteins (collagen, elastin), alkanolamines, silicon oxides, oxides of metals or sodium hexametaphosphate.

[0128] The coated pigments are particularly titanium oxides coated with:

[0129] - hydrated silica such as the product “MT-100WP” from TAYCA,

[0130] - silica and iron oxide such as the product “SUNVEIL F®” from IKEDA,

[0131] - silica and alumina such as the products “MT-500SA®” and "MT-100SA®” from TAYCA, "TIOVEIL™ AQ-N” from CRODA,

[0132] - alumina such as the products “TTO-55 (A)®” from ISHIHARA,

[0133] - alumina and aluminum stearate such as the products “MT-100TV®, MT-100Z®, MT-01®” from TAYCA, the product “Solaveil™ CT100” from CRODA and the product “Eusolex T- AVO®” from MERCK,

[0134] - silica, alumina and alginic acid such as the product “MT-100AQ®” from TAYCA,

[0135] - alumina and aluminum laurate,

[0136] - iron oxide and iron stearate, - zinc oxide and zinc stearate,

[0137] - silica and alumina and treated with a silicone such as the products “MTY-500SAS®” or “MICROTITANIUM DIOXIDE MT-100SAS®” from TAYCA,

[0138] - silica, alumina, and aluminum stearate and treated with a silicone,

[0139] - silica and treated with a silicone,

[0140] - alumina and treated with a silicone such as the products “TTO-55(S)®” from ISHIHARA,

[0141] - triethanolamine,

[0142] - stearic acid such as the product “TTO-55 (C)®” from ISHIHARA,

[0143] - sodium hexametaphosphate,

[0144] - TiO2 treated with octyl trimethyl silane,

[0145] - TiO2 treated with a polydimethylsiloxane,

[0146] - TiO2 anatase / rutile treated with a polydimethylhydrogenosiloxane,

[0147] - TiO2 coated with triethylhexanoin, aluminum stearate, alumina sold under the trade name “Solaveil™ CT-200” from CRODA,

[0148] - TiO2 coated with aluminum stearate, alumina and silicone sold under the trade name “Solaveil™ CT-12W” from CRODA,

[0149] - TiO2 coated with lauroyl lysine,

[0150] - TiO2 coated with C9-C15 fluoroalcohol phosphate and aluminum hydroxide.

[0151] Mention can also be made of TiO2 pigments doped with at least one transition metal such as iron, zinc, manganese and especially manganese. Preferably, said doped pigments are in the form of an oily dispersion. The oil present in the oily dispersion is preferably chosen from triglycerides including those of capric / caprylic acid. The oily dispersion of titanium oxide particles can comprise one or several dispersing agents for example such as a sorbitan ester such as sorbitan isostearate, a fatty acid ester and a polyoxyalkylenated glycerol such as TRI-PPG3 MYRISTYLETHER CITRATE and POLYGLYCERYL-3 POLYRICINOLEATE. Preferably, the oily dispersion of titanium oxide particles comprises at least one dispersing agent chosen from fatty acid esters and polyoxyalkylene glycerol. Mention can more particularly be made of the oily dispersion of TiO2 particles doped with manganese in capric / caprylic acid triglyceride in the presence of TRI-PPG-3 MYRISTYLETHER CITRATE and POLYGLYCERYL-3-POLYRICINOLEATE and SORBITAN ISOSTEARATE with the INCI name: TITANIUM DIOXIDE (and) TRI-PPG-3 MYRISTYLETHER CITRATE (and) POLYGLYCERYL-3 RICINOLEATE (and) SORBITAN ISOSTEARATE such as the product sold under the trade name “OPTISOL™ OTP-1” by CRODA.

[0152] The uncoated titanium oxide pigments are for example sold by TAYCA under the trade names “MT-500B” or “MT-600B®”, by Evonik under the trade name “DEGUSSA P 25”. The uncoated zinc oxide pigments are for example:

[0153] - those marketed under the trade name “Z-COTE®” by BASF;

[0154] - those marketed under the trade name “NanoArc® Zinc Oxide” by Nanophase Technologies.

[0155] The coated zinc oxide pigments are for example:

[0156] - ZnO coated with polymethylhydrogenesiloxane;

[0157] - “Solaveil™ CZ-100” from CRODA dispersed in C12-15 alkyl benzonate (INCI: Zinc Oxide (and) C12-15 Alkyl Benzoate (and) Polyhydroxystearic Acid (and) Isostearic Acid);

[0158] - those marketed under the trade name “DAITOPERSION Zn-60VA®” by Daito Kasei (dispersions in C9-12 alkane with a dispersing agent);

[0159] - those marketed under the trade name “SPD-Z5®” by Shin-Etsu (ZnO coated with silicone- grafted acrylic polymer, dispersed in cyclodimethylsiloxane).

[0160] The uncoated cerium oxide pigments can for example be those sold under the trade name RHODIGARD® W185 by Solvay.

[0161] Mention can also be made of metal oxide mixtures, particularly of titanium dioxide and cerium dioxide, including the mixture of equal weights of titanium dioxide and cerium dioxide coated with silica, and the mixture of titanium dioxide and zinc dioxide coated with alumina, silica and silicone, or coated with alumina, silica and glycerin.

[0162] Preferably, the additional UV filter is a hydrophilic or water-dispersible organic UVB filter, preferably a hydrophilic organic UVB filter, preferably Phenylbenzimidazole Sulfonic Acid.

[0163] Preferably, the additional UV filter is an inorganic UV filter, preferably coated titanium dioxide.

[0164] Preferably, the additional UV filter is a lipophilic organic UV filter, preferably chosen from Diethylamino hydroxy benzoyl hexyl benzoate (particularly sold under the trade name “UVINUL® A Plus” or in a mixture with ethylhexyl methoxycinnamate under the trade name “UVINUL® A Plus B” by BASF), Drometrizole Trisiloxane (particularly manufactured under the name “MEXORYL® XL” by NOVEAL), Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine (particularly sold under the trade name “Tl NOSORB® S” by BASF), Ethylhexyl Triazone (particularly sold under the trade name “UVINUL® T 150” by BASF) and avobenzone.

[0165] Preferably, the additional UV filter is present in a quantity equal to between 0.2% and 30% by weight, preferably between 0.5% and 20% by weight relative to the total weight of the composition, preferably between 1% and 20% by weight, preferably between 1.5% and 15% by weight. According to another embodiment, preferably, the additional UV filter is present in a quantity of less than 15% by weight, preferably less than 10% by weight, preferably less than 5% by weight relative to the total weight of the composition, preferably less than 3% by weight, preferably less than 1 % by weight.

[0166] Acid and / or base

[0167] According to one embodiment, the cosmetic composition according to the invention can comprise an acid and / or a base.

[0168] Preferably, the composition according to the invention has a pH of between 4 and 10, preferably between 5 and 8.5, and preferentially between 5.5 and 8.

[0169] Viscosity

[0170] The compositions according to the invention preferably have a viscosity of at least 0.10 Pa.s, measured at 25°C with a Rheomat RM 100® viscosity meter from Lamy Rheology after 10 minutes. Preferably, it is between 0.10 and 20 Pa.s, preferably between 0.10 and 10 Pa.s, preferably between 0.10 and 5 Pa.s.

[0171] Such a viscosity typically allows the compositions to have a gelled texture.

[0172] Hardness

[0173] The compositions according to the invention preferably have a hardness greater than or equal to 0.3. The hardness is measured by penetrometrics according to the following protocol (used in the examples):

[0174] The composition according to the invention is poured into a pot of 6.5 cm in diameter and 6 cm in height. The TA. XT plus texture analyzer from Stable Micro Systems is used with an 11.97 mm diameter cylinder to penetrate the composition (compression measurement). The cylinder moves orthogonally to the surface of the composition using an equivalent force to a mass of 0.1 g at a speed of 1 mm / second over a distance of 10 mm. The texture analyzer measures the equivalent force to a mass as a function of displacement. The curve obtained by a 2nd degree polynomial can then be approximated: [Math 1] y = a * x2+ b * x + c

[0175] The component b indicates the hardness of the composition: the greater b is, the harder the composition. According to one particular embodiment, the composition according to the invention further comprises cosmetically acceptable active agents and / or excipients.

[0176] The term “cosmetically acceptable” means compatible with the skin and / or its appendages, having a pleasant color, odor and texture and not giving rise to unacceptable discomfort (stinging, tightness, redness), liable to dissuade the consumer from using the composition.

[0177] The compositions according to the invention can be in aqueous form, for example in the form of aqueous gel or hydroalcoholic composition, but also in the form of emulsion, particularly oil-in-water or water-in-oil emulsion, or in biphasic form.

[0178] When the composition according to the invention is in an oil-in-water emulsion form, it comprises an oily phase dispersed in an aqueous phase. When the composition according to the invention is in a water-in-oil emulsion form, it comprises an aqueous phase dispersed in an oily phase. In these cases, the aqueous phase comprises the hydrophilic or water- dispersible organic filters and the specific polysaccharide according to the invention. The term “oily phase” means, according to the invention, a phase that is liquid at 20-25°C and at a pressure of 1.01325 105Pa. Such an “oily phase” generally comprises at least one oil. The term “oil” means any fatty substance that is in liquid form at ambient temperature (20 to 25°C) and at atmospheric pressure (760 mm Hg). The “fatty substance” comprises at least one “fatty” hydrocarbon chain, in other words a linear hydrocarbon chain with at least 4 carbon atoms, unsaturated or not unsaturated, optionally substituted, and in particular a linear C5-C30 hydrocarbon chain. The oily phase can comprise an oil and / or a fat-soluble UV filter (particularly as described hereinabove).

[0179] Preferably, the composition according to the invention does not comprise an oily phase. Preferably, the compositions according to the invention are oil-free. For the purposes of the invention, the term “oil-free” means a composition comprising a single liquid phase that is an aqueous phase (a liquid phase containing water). The term “oil” does not cover, for example, water-soluble active ingredients, water-soluble or dispersible UV filters and water-soluble glycols soluble.

[0180] Finally, the present invention also relates to a non-therapeutic cosmetic treatment method of keratin materials, preferably the skin, comprising application of a composition according to the invention on said keratin materials. Such a method is intended particularly to protect keratin materials, and particularly the skin, against UV radiation. Concrete, yet non-limiting, examples, illustrating the invention, will now be provided.

[0181] In the examples, the temperature is ambient temperature (20°C) expressed in degrees Celsius unless mentioned otherwise, and the pressure is atmospheric pressure, unless mentioned otherwise.

[0182] In the examples, quantities of the ingredients of the compositions are given as a % by weight relative to the total weight of the composition.

[0183] Example 1 : preparation and evaluation of compositions according to the invention and comparative compositions

[0184] Compositions A to H in Tables 1 and 2 below were prepared as follows.

[0185] The compositions according to the invention are compositions A to C and E to G, and the comparative formulas are formulas D* and H* (marked with an asterisk).

[0186] In the tables below, the term “a.s.” means “active substance”.

[0187] Procedure:

[0188] 1. Preparation of phase A in a beaker: Under a rotor-stator, introduce all the ingredients of A while sprinkling the gelling agent. The temperature of the water during mixing is approximately 90°C. Allow to stir for 10 min at 600 rpm until a homogeneous mixture is obtained.

[0189] 2. Preparation of phase B in another beaker: Introduce all the ingredients of B while stirring with a magnetic stirring bar until a clear liquid phase is obtained. The temperature of the water during mixing is approximately 90°C.

[0190] 3. Add B to A at a temperature of approximately 45°C while maintaining stirring under rotorstator until a homogeneous mixture, which will eventually gel, is obtained.

[0191] All the formulas have a pH of 7.4 just after manufacturing, and approximately 8.0 a few days later.

[0192] [Table 1]

[0193] During formulation, the pH was adjusted to 7.4, but after several days, it tends to be 8.0 for all the formulas. [Table 2]

[0194] The different compositions, once prepared, are tested for their tackiness and appearance as detailed hereinafter. Evaluation of tackiness

[0195] All the formulas were evaluated according to the same protocol by 10 different people.

[0196] Dispensing of formulas

[0197] The formulas were placed in a pump bottle that always dispenses the same dose of formula, regardless of the formula (0.45 + / - 0.03 g).

[0198] For each evaluation, one dose is applied on the back of the hand with:

[0199] - on one hand, the non-inventive product (formula D* or H* with lambda carrageenan) and

[0200] - on the other, one of the products according to the invention (formulas A to C or E to G with agar or kappa or iota carrageenan).

[0201] The evaluations are performed in parallel on both hands to allow a correct comparison and have relative evaluations.

[0202] Evaluation of tackiness

[0203] The formulas are applied by rubbing around on each hand until dry. The tackiness is evaluated on each hand and on the fingers applying every 30 seconds for up to 5 min, then every minute for up to 8 min.

[0204] The scores range from 0 (not tacky) to 5 (very tacky). For formulas even tackier than 5, scores of 6 and 7 were allowed. This has little impact insofar as both products are evaluated relatively on the same scale.

[0205] Data processing

[0206] For each formula, all the scores were added for each of the products.

[0207] The difference in the sum of the scores is then averaged over the 10 evaluators.

[0208] Evaluation of appearance

[0209] The evaluations focused on transparency, hardness and viscosity.

[0210] Transparency.

[0211] Quantitative evaluation: the Turbidimeter was used to measure the turbidity of each of the formulas, as indicated in the description.

[0212] Hardness: Quantitative evaluation: Penetrometric measurements were performed using the protocol in the description.

[0213] Viscosity: was measured at 25°C according to the protocol in the description.

[0214] For formulas A and E, viscosity is not measurable.

[0215] The results are given in Tables 3 to 5.

[0216] Tackiness:

[0217] [Table 3]

[0218] Regardless of the polysaccharide, the formulas are all less tacky than comparative formulas D* and H* (including lambda carrageenan), whether this tackiness is evaluated on the hand or on the fingers used to apply the product.

[0219] In order from least tacky to tackiest:

[0220] In the presence of Mexoryl SX: o on hand: B (Kappa) < C (lota) < A (Agar) « D* (Lambda) o on fingers: A (Agar) < C (lota) < B (Kappa) « D* (Lambda)

[0221] In the presence of Neoheliopan AP: o On hand and on fingers: E (Agar) < F (Kappa) < G (lota) < H* (Lambda).

[0222] Appearance:

[0223] [Table 4]

[0224] [Table 5]

[0225] The results show that regardless of the polysaccharide chosen according to the invention, the gel formed is more viscous than the gel formed with lambda carrageenan.

[0226] The turbidity measurements show that regardless of the polysaccharide, the formulas remain transparent (maximum of around 100 NTU for formulas A and E with agar), but that the thickening is much greater than in the presence of lambda carrageenan; this is observed with a greater hardness (penetrometrics) for gels A to C and E to G, compared to comparative gels D* and H*.

Claims

CLAIMS1. Composition, particularly a cosmetic composition, comprising, in a physiologically acceptable aqueous medium: at least one hydrophilic or water-dispersible organic filter capable of absorbing UV from 320 to 400 nm (UVA); and at least one polysaccharide from red algae wherein the number of sulfate(s) per monomer is less than or equal to 2.

2. Composition according to claim 1 , characterized in that the hydrophilic or water-dispersible organic filter capable of absorbing UV from 320 to 400 nm (UVA) is a hydrophilic filter capable of absorbing UVA chosen from Terephthalylidene Dicamphor Sulfonic Acid, bis-benzoazolyl derivatives, in particular Disodium Phenyl Dibenzimidazole Tetrasulfonate, Benzophenone-4, Benzophenone-5, Benzophenone-9, and mixtures thereof, or the hydrophilic or water-dispersible organic filter capable of absorbing UV light from 320 to 400 nm (UVA) is a water- dispersible filter capable of absorbing UVA chosen from Methylene bis-Benzotriazolyl Tetramethylbutylphenol in the form of an aqueous dispersion of micronized particles having a volume average particle size varying from 0.01 to 5 pm with at least one alkylpolyglycoside surfactant having the structure CnH2n+i O(C6H10O5)xH wherein n is an integer from 8 to 16 and x is the average degree of polymerization of the unit (CeH Os) and varies from 1.4 to 1.6, or in the form of an aqueous dispersion of micronized particles having a volume average particle size varying from 0.02 to 2 pm in the presence of at least one polyglycerol mono-(C8-C20)alkyl ester with a degree of polymerization of glycerol of at least 5; 3.3’-(1 ,4-Phenylene)bis(5.6-diphenyl-1 ,2,4- triazine); Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine in its water-dispersible form; 2,4,6-tris(bi-phenyl)-triazine and 2,4,6-tris(ter-phenyl)-triazine.

3. Composition according to claim 1 or 2, characterized in that the hydrophilic or water-dispersible organic filter capable of absorbing U V from 320 to 400 nm (UVA) is a hydrophilic filter capable of absorbing UVA chosen from Terephthalylidene Dicamphor Sulfonic Acid, bis-benzoazolyl derivatives, in particular Disodium Phenyl Dibenzimidazole Tetrasulfonate, and mixtures thereof, or the hydrophilic or water-dispersible organic filter capable of absorbing UV light from 320 to 400 nm (UVA) is a water-dispersible filter capable of absorbing UVA chosen from Methylene bis-Benzotriazolyl Tetramethylbutylphenol in the form of an aqueousdispersion of micronized particles having a volume average particle size varying from 0.01 to 5 pm with at least one alkylpolyglycoside surfactant having the structure CnH2n+i O(C6H10O5)XH wherein n is an integer from 8 to 16 and x is the average degree of polymerization of the unit (C6H10O5) and varies from 1.4 to 1 .6, or in the form of an aqueous dispersion of micronized particles having a volume average particle size varying from 0.02 to 2 pm in the presence of at least one polyglycerol mono-(C8- C20)alkyl ester with a degree of polymerization of glycerol of at least 5; 3.3’-(1 ,4- Phenylene)bis(5.6-diphenyl-1 ,2,4-triazine); Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine in its water-dispersible form; 2,4,6-tris(bi-phenyl)-triazine and 2,4,6-tris(ter- phenyl)-triazine.

4. Composition according to any one of claims 1 to 3, characterized in that the hydrophilic or water-dispersible organic filter capable of absorbing UV from 320 to 400 nm (UVA) is a hydrophilic filter capable of absorbing UVA chosen from Terephthalylidene Dicamphor Sulfonic Acid, bis-benzoazolyl derivatives, preferably Disodium Phenyl Dibenzimidazole Tetra-sulfonate, and mixtures thereof; preferably, the hydrophilic filter capable of absorbing UVA is chosen from Terephthalylidene Dicamphor Sulfonic Acid, Disodium Phenyl Dibenzimidazole Tetra-sulfonate and mixtures thereof; preferably, the hydrophilic filter capable of absorbing UVA is Terephthalylidene Dicamphor Sulfonic Acid or Disodium Phenyl Dibenzimidazole Tetra-sulfonate.

5. Composition according to one of claims 1 to 4, characterized in that it comprises a quantity of hydrophilic or water-dispersible organic filter(s) capable of absorbing UVA of between 0.1 % and 20% by weight, preferably between 0.1% and 15% by weight relative to the total weight of the composition, preferably between 1% and 10% by weight.

6. Composition according to one of claims 1 to 5, characterized in that the polysaccharide from red algae contains no sulfates.

7. Composition according to one of claims 1 to 6, characterized in that the polysaccharide from red algae is agar.

8. Composition according to one of claims 1 to 5, characterized in that the polysaccharide from red algae comprises 1 or 2 sulfate(s), preferably is chosen from kappa carrageenans, iota carrageenans and mixtures thereof.

9. Composition according to one of claims 1 to 8, characterized in that the polysaccharide is chosen from agar, kappa carrageenans, iota carrageenans, and mixtures thereof.

10. Composition according to one of clams 1 to 9, characterized in that it comprises from 0.01 to 20%, preferably from 0.01 to 10%, preferably from 0.01 to 5%, preferably from 0.01 to 3%, preferably from 0.1 to 3%, preferably from 0.1 to 1 % and preferably from 0.3 to 1% by weight of polysaccharide relative to the total weight of the composition.

11. Composition according to one of claims 1 to 10, characterized in that the aqueous medium comprises water and optionally at least one other water-soluble organic solvent at 25°C, preferably chosen from C1-C4 monoalkanols, polyols having 2 to 20 carbon atoms and mixtures thereof.

12. Composition according to one of claims 1 to 11 , characterized in that it further comprises at least one additional UV filter chosen from lipophilic organic UV filters, hydrophilic or water-dispersible organic UVB filters and inorganic UV filters; preferably the additional UV filter is a water-soluble or water-dispersible organic UVB filter, preferably Phenylbenzimidazole Sulfonic Acid, or an inorganic UV filter, preferably coated titanium dioxide.

13. Composition according to one of claims 1 to 12, characterized in that it has a pH between 4 and 10, preferably between 5 and 8.5, and more preferably between 5.5 and 8.

14. Composition according to one of claims 1 to 13, characterized in that it has a viscosity of at least 0.10 Pa.s, measured at 25°C, preferably between 0.10 and 20 Pa.s, preferably between 0.10 and 10 Pa.s, preferably between 0.10 and 5 Pa.s; preferably the viscosity is measured with a Rheomat RM 100® viscosity meter from Lamy Rheology after 10 minutes.

15. Composition according to one of claims 1 to 14, characterized in that the composition does not comprise an oily phase.

16. Composition according to one of claims 1 to 15, characterized in that the composition is substantially free from carbomer, preferably it comprises less than 0,5% by weight of carbomer relative to the total weight of the composition, preferablyless than 0,3% by weight, preferably less than 0,1% by weight; preferably the composition is totally free from carbomer.

17. Non-therapeutic cosmetic treatment method of keratin materials, preferably the skin, comprising the application of a cosmetic composition according to one of claims 1 to 16 on said keratin materials.

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