A method of cosmetic care comprising activating capsase-14 expression in skin deficient in caspase-14 expression by applying, on at least one skin zone in need thereof, an effective amount of a plant extract selected from the group consisting of litchi, glasswort, peach, soja seed, sweet basil, cucumber, chanterelle, leek, kiwi fruit, rhubarb, grapefruit, wheat, raspberry, plum, and mixtures thereof, to activate caspase-14 expression in said skin.