The invention relates to the use of an oily composition comprising a lipophilic extract of daylily as an active ingredient for the preparation of a topical cosmetic composition intended to improve the firmness and/or elasticity of the skin, to a non-therapeutic cosmetic method for improving the firmness and/or elasticity of the skin using such a cosmetic composition, and to the non-therapeutic use of a topical cosmetic composition comprising a lipophilic extract of daylily in order to improve the firmness and/or elasticity of the skin.