Ideal for soft nails that break and peel. Penetrating nail hardener. It hardens the nail by re-bonding the three layers that make up the nail. By instantly increasing the hardness of nails, it makes nails that are soft, break or peel, instantly hard and healthy. Its formula hardens the nail surface so that the nail regains its natural growth. It penetrates instantly. It is not used as a base. Unique formulation from the MAVALA laboratories.