10,000 mcg Biotin. My hair is now at hip length with this! (I switched to this 4 months after stopping Viviscal). It took me a total of 19 months to get from a shoulder blade length cut to the top of my hip bones. When it reaches an inch or two past tailbone length, I will start trimming it more regularly to maintain it at tailbone.
Amazon.com: DNA Formulas Whole Food Multivitamin 120 Capsules Enhanced Bioavailable Whole Food Multivitamin For Men & Women No Artificial Colors or Preservatives Activated Mineral Rich - Biotin - Vitamin D - Vitamin B12 - Folate - Vitamin C: Health & Personal Care
Our body needs 13 vitamins: vitamins A, C, D, E, K and the B vitamins (thiamine, riboflavin, niacin, pantothenic acid, biotin, vitamin B-6, vitamin B-12 and folate). Other than vitamins D and K that can be produced in the body, all other vitamins have to be absorbed from food. Learn more about vitamins in this guide.