| Supplement | How it works | Dose | 
|---|---|---|
| B complex | Vitamin B6 helps create melanin for colorful hair; vitamin B7 (biotin) fights hair loss and may make nails stronger; and vitamin B9 (folate) helps produce red blood cells, which transport oxygen to the scalp and contribute to hair growth. A B-complex supplement is especially crucial for women who take oral contraceptives because the pill can deplete B-vitamin stores. | 50 mg B complex once/day | 
| Vitamin D | Essential for calcium absorption, which strengthens teeth and bones, vitamin D may also help soothe skin irritation, redness, and scaling, according to a recent study published in the Journal of Allergy and Clinical Immunology. | 1,0002,000 IU once/day | 
| Vitamin E | In addition to reducing the risk of cataracts, this antioxidant vitamin promotes circulation for healthy hair and helps stabilize the skins lipid membranes, protecting them from free radical damage. | 15 mg once/day | 
Advertisement