Formula 50 is the original protein formula for support of hair and nails. This tried and true formula has been changing the way women look for 50 years. Formula 50 contains protein and vitamin B-6 to support healthy hair and strong shiny nails. The unique blend of natural amino acids nourishes and replenishes the nutrients most commonly lacking in a womans diet that can cause brittle splitting peeling nails and thinning hair.Other products from HerbsPro