most people living in america receive enough of the vitamins and minerals needed for healthy hair through their diet and daily multivitamins. i do not routinely recommend any additional vitamins or supplements for healthier hair unless a specific deficiency has been identified in a person’s blood work. low ferritin -- a marker of the body’s iron stores -- can often be supplemented as can vitamins d and b12. however be cautious of over-ingesting certain supplements such as vitamin a arginine or selenium which can actually cause hair loss at very high doses.
are there any vitamins or dietary supplements i can take to make my hair look healthier and grow stronger?