Erno Laszlo Hydra Therapy Skin Vitality Treatment is a mix-to-activate, duo-phase mask that works to instantly soothe, hydrate and plump the complexion. It contains botanically derived allantoin to reduce the appearance of fine lines and enhance skins natural radiance. As you apply, you will feel an instant cooling to the skin. You will look and feel like you just left the spa. Perfect to prep the skin for a night out, replenish after a long day, after sun or during travel.