Abstract: The invention relates to a composition which makes it possible, in particular, to combat photo-induced ageing of the skin and/or to combat skin blemishes, this composition containing, in a cosmetically and/or dermatologically acceptable medium, at least one saccharide ester of ascorbic acid and at least one saccharide ester of rutin, the phase of this medium having a pH of from 4 to 6.

Abstract: A stable gelled composition is provided which can contain a large amount of electrolyte and which contains, as gelling agent, a polysaccharide alkyl ether formed from units containing at least two different monosaccharides, each unit containing at least one saturated alkyl ether group. The polysaccharide alkyl ether preferably has a molecular weight of greater than 200,000 and is in particular a guar gum alkyl ether having a degree of substitution of approximately 2 to 3, preferably about 2.5. The composition obtained can be used in the cosmetics and/or dermatological fields for the treatment and care of the skin, scalp, mucous membranes, nails and hair.

Abstract: A stable composition for topical application is provided which contains at least one enzyme, at least one polyol, the latter being present in a quantity which is effective for obtaining a water activity value of the composition of less than or equal to 0.85, and at least one structuring agent chosen from polymers and oils, for the purpose of stabilizing the enzyme. In such a composition, the enzyme retains its efficacy over time. The composition obtained can be used for cleansing and/or caring for and/or protecting the skin and/or keratinous fibers.

Abstract: Topically applicable UVA photoprotective cosmetic/dermatological compositions comprise an effective photoprotecting amount of at least one UVA screening agent substituted by at least one optionally neutralized sulfo functional group, and an effective UVA photoprotecting-enhancing amount of at least one otherwise non-UVA photoprotecting iron chelating agent, thereby imparting a synergistic protection factor (PF) effect thereto, in a cosmetically/dermatologically acceptable topical vehicle, carrier or diluent therefor.

Abstract: A composition for topical application is provided containing ascorbic acid and at least one polyol, the latter being present in an effective quantity to obtain a water activity value of the composition which is lower than or equal to 0.85, and at least one structuring agent chosen from polymers and oils, with a view to stabilizing the ascorbic acid. In such a composition ascorbic acid retains its effectiveness over the course of time. The composition obtained can be employed for treating and/or caring for the skin.

Abstract: A composition for topical application is provided which contains at least one water-sensitive active agent with a topical action and at least one polyol, the latter being present in a quantity which is effective for obtaining a water activity value of the composition of less than or equal to 0.85 with the aim of stabilizing the water-sensitive active agent, the composition containing at least one structuring agent chosen from polymers and oils. The water-sensitive active agent can, in particular, be an enzyme. The composition obtained can be used for cleansing and/or caring for and/or protecting the skin and/or keratinous fibers.

Abstract: The invention relates to a use of a method of fixing and/or prolonging release of a perfume in a cosmetic and/or dermatological composition with a plant compound, said plant compound comprising a plant extract and may be a mixture of plant gum and of plant extract.

Abstract: The invention relates to a composition for combating skin blemishes and/or for combating ageing of the skin, as well as for protecting the skin, particularly against ultraviolet rays. The composition contains arbutin and at least one ultraviolet screening agent chosen from the group consisting of benzylidenecamphor and derivatives thereof, in a cosmetically and/or dermatologically acceptable medium.

Abstract: A cosmetic composition in the form of a compacted powder contains charges or pigments, or both, and hollow microspheres of a thermoplastic synthetic material having a specific mass ranging from 0.01 to 0.1 g/cm.sup.3 and having a size less than 30 .mu.m, the composition being free of acyl lysine.

Abstract: The wax-based mascaras containing keratin hydrolysates having a molecular weight greater than 50,000 have improved properties for coating eyelashes, of stability and eyelash lengthening.

Abstract: These wax-based mascara compositions have cosmetic properties which are improved by the presence, in combination with the waxes, of keratin sulphonic derivatives of formula ##STR1## in which formula K denotes the keratin residue, and M.sup.+ denotes H.sup.+, a cation derived from an alkali metal or magnesium, or N.sup.+ (R).sub.4, the radicals R being identical or different and each denoting H or an alkyl or hydroxyalkyl radical containing at most 4 carbon atoms, the unit A denoting from 3 to 15% by weight of the keratin derivative and being the only modified unit in the protein chain of the keratin. The derivatives of formula (I) act both as a cohesion agent and a thickener, enabling a sheathing to be produced on the eyelashes with immediate adhesion and with a flexible film-forming effect.