The nail plate is composed of three layers. It is naturally the visible outer layer that is particularly sensitive to outside elements and can very easily be dried out by too much sun, cold weather or detergents. Nailactan is composed of essential amino acids, lipids and kerato-balancing vitamins. Its nourishing and moisturising action restores elasticity to the nail plate, improves its general condition and makes nails more resistant to splitting. Mavala is a cruelty-free brand; they do not test any of their products on animals.