Treatment base to protect the nail & double the lasting quality of nail polish. Nail polishes contain coloured pigments that can cause yellowing. Mavala 002 formula prevents pigments in nail polish from coming in direct contact with the nail plate & also protects it from outside elements. It perfectly adheres to the nail plate & stays slightly sticky to allow nail polish to last almost twice as long. How to use Apply over the whole surface of clean nail plate before nail colour.