Vigorcap is a food supplement with a balanced combination of nutritional elements for the nutrition of hair and nails. Vigorcap contains L-cystine, zinc, iron, pantothenic acid, vitamin B6, and biotin. An adequate intake of zinc is one of the factors that helps keep hair and nails in optimal condition. Biotin is a vitamin whose sufficient dietary intake contributes to the normal maintenance of hair. Cystine is a constitutive sulfur amino acid of keratin.