Abstract: A cosmetic composition intended for treating a keratin substance, comprising, preferably in a support suitable for keratin substances: (a) at least one crosslinked and at least 90% neutralized poly(2-acrylamido-2-methylpropanesulphonic acid) polymer and (b) at least one oxidizing agent selected from hydrogen peroxide and compounds capable of producing hydrogen peroxide by hydrolysis, such as persalts and urea peroxide.

Abstract: A container includes a body having at least one wall defining an open area for containing fluid and a member. The body includes a guiding portion for guiding removal of an applicator from the container along a predetermined path and an opening permitting access to the open area of the body. The member includes a wiping portion having an open end. The wiping portion is shaped so that as the applicator is removed from the container along the predetermined path the wiping portion wipes at least two opposed points on a transverse section of the applicator. Also disclosed are systems and methods for dispensing fluid from the container.

Abstract: The use of specific sulphonic acids or hydrates thereof in or for the preparation of a cosmetic or dermatological composition for achieving various effects on the skin, such as promoting desquamation of the skin, stimulating epidermal renewal, combatting intrinsic and extrinsic cutaneous aging. A process for the non-therapeutic treatment of the skin intended to achieve such effects, such as to promote the desquamation of the skin.