Cosmetic or dermatological composition comprising at least a merocyanine and a hydrotrope

Composition according to the preceding claim, comprising at least as merocyanine of formula (I), at least one compound chosen from the following compounds and also the E/E- or E/Z-geometric isomer forms thereof:

Composition according to either one of the preceding claims, in which the merocyanine of formula (I) is the compound 2-ethoxyethyl (2Z)-cyano{3-[(3-methoxypropyl)amino]cyclohex-2-en-1-ylidene}ethanoate (C) in its E/Z geometric configuration having the following structure:

• and/or in its E/E geometric configuration having the following structure:

Composition according to any one of the preceding claims, in which the content of merocyanine(s) of formula (I) ranges from 0.1% to 25% by weight, preferentially from 0.2% to 20% by weight, more preferentially from 0.5% to 10% by weight, and even better still from 1% to 5% by weight, relative to the total weight of the composition.

Composition according to any one of the preceding claims, comprising at least one hydrotrope chosen from nicotinamide, caffeine, and mixtures thereof.

Composition according to the preceding claim, comprising at least one additional hydrotrope chosen from salicylic acid salts, the sodium salt of pyroglutamic acid (sodium PCA), sodium 1,3-benzenedisulfonate, sodium benzoate, sodium 4-pyridinecarboxylate, sodium benzenesulfonate, sodium p-toluenesulfonate (NaPTS), sodium butyl monoglycol sulfate (NaBMGS), 4-aminobenzoic acid HCl, sodium cumene sulfonate, N,N-diethyl nicotinamide, N-picolyl nicotinamide, N-allyl nicotinamide, 2-methacryloyloxyethyl phosphorylcholine, resorcinol, pyrogallol, N-picolylacetamide, procaine HCl, proline HCl, pyridine, 3-picolylamine, sodium ibuprofen, sodium xylene sulfonate (SXS), ethyl carbamate, pyridoxal hydrochloride, sodium benzoate, N,N-dimethylacetamide, N-methylacetamide, isoniazid, and mixtures thereof, and preferably at least one salicylic acid salt.

Composition according to any one of the preceding claims, comprising at least nicotinamide as hydrotrope.

Composition according to any one of the preceding claims, in which the content of hydrotropes(s) ranges from 0.1% to 20% by weight, in particular from 0.1% to 10% by weight, preferably from 0.5% to 10% by weight, notably from 0.5% to 3% by weight, relative to the total weight of the composition.

Composition according to any one of the preceding claims, in which the merocyanine(s) of formula (I)/hydrotrope(s) weight ratio ranges from 0.01 to 8, preferably from 0.02 to 5, in particular from 0.05 to 3, and more particularly from 0.1 to 1.5.

Composition according to any one of the preceding claims, comprising at least two different hydrotropes chosen from nicotinamide, caffeine, and sodium salicylate, and the merocyanine(s) of formula (I)/hydrotrope(s) weight ratio ranging from 0.01 to 5, preferably from 0.02 to 3, in particular from 0.05 to 2, and more preferentially from 0.1 to 1.5.

Composition according to any one of the preceding claims, comprising two different hydrotropes chosen from nicotinamide and caffeine, and the weight ratio between these two hydrotropes ranging from 0.2 to 5, in particular from 0.5 to 3, and more preferentially from 0.8 to 1.2.

Composition according to any one of the preceding claims, comprising at least one alcohol, in particular a monoalcohol, and preferably ethanol.

Composition according to any one of the preceding claims, further comprising at least one alkylene carbonate and preferably propylene carbonate.

Composition according to any one of the preceding claims, comprising at least one polyol, in particular chosen from ethylene glycol, pentaerythritol, trimethylolpropane, pentylene glycol, propylene glycol, dipropylene glycol (DPG), caprylyl glycol, glycerol, polyglycerols, polyethylene glycols (PEG), and mixtures thereof, in particular chosen from propylene glycol, pentylene glycol, dipropylene glycol, and mixtures thereof, and preferably is dipropylene glycol.

Composition according to any one of the preceding claims, comprising at least one fatty phase, preferably ranging from 0.5% to 80% by weight, preferably from 1% to 40% by weight and more preferentially from 3% to 20% by weight relative to the total weight of the composition.

Composition according to any one of the preceding claims, further comprising at least one additional UV-screening agent different from the merocyanines of formula (I).

Composition according to any one of the preceding claims, characterized in that it is a cosmetic composition for caring for keratin materials, in particular of the body or of the face, preferably of the face.

Cosmetic process for caring for keratin materials, in particular of the body and/or of the face, comprising at least one step of applying a composition as defined in any one of the preceding claims to said keratin materials.