Bacterial imbalances in the GI tract from antibiotics or inflammatory bowel disease can also put people at risk of biotin deficiency, Rossi said. The recommended daily intake of biotin is 30 ...

Given the chatter that this is a gold-standard ingredient for hair growth, you may be super tempted to hit "add to cart" on the first product you see if you've noticed changes to your hair such as ...

Biotin, also known as vitamin B7 ... You can also find it in cod liver oil, eggs, yogurt and milk. The recommended daily intake for vitamin A is up to 900 mcg for men and 700 mcg for women.