Question: what is the best vitamin for hair and nails?
Answer: Biotin. Share on Pinterest. ...  Other B Vitamins. Other B vitamins are also important for nail health. ...  Iron. Iron composes the center of red blood cells, which carry oxygen to your organs and every cell in your body — including your nails. ...  Magnesium. ...  Protein. ...  Omega-3 Fatty Acids. ...  Vitamin C. ...  Zinc.