About

Nail polish, or nail varnish, is a lacquer applied to human fingernails or toenails to decorate and/or protect the nail plate.

Nail polish started traditionally in clear, red, pink and brown. Since that time, many new colors and techniques have developed resulting in nail polish that is found in an extremely diverse variety of colors. Beyond solid colors, nail polish has also developed an array of other designs and colors. Such as nail polish stamps, crackled, magnetic, nail polish strips and stickers. Also fake rhinestones are often applied. Some types of polish are advertised to cause nail growth, make nails stronger, prevent nails from breaking, cracking and splitting, and to stop nail biting.

Source: Wikipedia.