Promote Radiant Skin Biotin Silica Vitamin C Proline Zinc Copper Flaxseed Oil Gotu Kola Dietary Supplement Longer, Stronger Hair and Nails Healthy skin, hair, and nails are important not only to appearance, but are also indicators of internal health status. Taking steps to improve skin, hair and nail health can not only improve the way you look but enhance the way you feel. Nutrients to Strengthen: Horsetail is a nutritive plant full of important minerals, and is standardized to supply 11.2 mg Silica per serving. Biotin is an essential vitamin that improves the strength and luster of brittle nails. Connective Tissue Support: A special blend of vitamins and minerals provide the ingredients necessary to build and protect connective tissue. Proline and Lysine are two key elements of collagen structure. Free Radical Protection: The best way to maintain healthy skin, hair and nails is to protect them from damage. Bioflavonoids possess antioxidant qualities to protect the cells from free ra