Cystiphane Biorga B6 Zinc Tabs 120'S for hair and nails healthCystiphane Biorga B6, Zinc 120 Tablets L cysteine ??(sulfur amino acid) is one of the basic components of hair (18%), nails (14%), and, to an extent Lesser, skin (2% to 4%). L cysteine contains keratin for hair and nails. It accelerates the proliferation of cells that are rich in keratin and has a positive effect on the growth of hair and nails. Top cystine levels occur mainly in hair, 4 6 weeks after taking the tablets. Vitamin B6 is a vital factor