Abstract: Cosmetic/pharmaceutical compositions, well suited for the treatment of unwanted skin wrinkles, e.g., for visibly reducing human skin wrinkles, comprise an effective antiwrinkle amount of at least one extract of at least one member of the Iridaceae family that relaxes and/or loosens cutaneous and/or subcutaneous tissue, formulated into a cosmetically/pharmaceutically acceptable excipient or carrier therefor.

Abstract: The invention relates to the use of an ethylenediamine derivative as a substance P antagonist and/or as a local analgesic in, or for the preparation of, a cosmetic or dermatological composition for treating sensitive skin-types. The invention relates in particular to the use of this derivative for preventing and/or combating skin irritations and/or dartres and/or erythema and/or dysaesthesic sensations and/or sensations of inflammation and/or pruritus of the skin and/or the mucous membranes including the eyes. The invention also relates to a composition containing a product having an irritant side effect and this derivative, so as to reduce this irritant effect or even to remove it altogether.