There are many hair growth vitamins on the market today, but did you know that most of them don’t actually work or give very little results? Many vitamins actually contain less of the active ingredient and have a lower price than the competitors. When choosing hair growth vitamins, choose ones that are FDA approved . If you need more advice on hair growth vitamins, Dr. Brett Bolton, founder and medical director of GreatHairTransplants and his dedicated staff of hair experts are always there to help you.