Mavala Scientifique K+ Nail Hardener (5ml) is a treatment allowing soft, flaking or split nails to become healthy and strong again. As the most fragile, unprotected part of the nail, the tip breaks easily and benefits most from a strengthening process. Mavala Scientifique K+ Nail Hardener instantly penetrates and hardens the nail plate, allowing normal growth to be restored. Scientifique K+ is an innovative product that hardens the nail plate thanks to a scientific active ingredient that improves the cohesion of Keratin fibres. Formaldehyde-free. Directions of use: Remove nail polish or any oily film and clean the nails thoroughly. Brush Mavala Scientifique Nail Hardener on to the free edge of the nails and leave for 1 minute. Apply twice a week at the most until your nails are healthy and strong, then twice or three times a month as necessary. Never apply under the nails, on cuticles or on the skin to avoid hardening of the epidermis. If any product runs on to the skin, wipe off immediately with a dampened cotton pad.