MetaNail Serum Pro is a nail & feet health supplement that works naturally. It comes in the form of a serum that is for external use, only. The health of the nails is important as bacterial action can cause degeneration of the nails and eventual fall off. MetaNail Serum Pro toenail health supplement helps to strengthen the nail, supports the nail bed, hydrates the nail, helps in new nail growth, and much more. Along with supporting the nails, the supplements also impart healthy skin, the area around the nails.