biotin side effects in women
Certain people also have allergic reactions to it, and taking it with certain medications can make them less effective. Pregnant women should not take biotin without consulting a healthcare professional because of a very low possibility of miscarriage. Acne. The most common biotin side effect is breakouts of cystic acne along the jawline and chin. It's not clear why this happens, but many cases subside after a few weeks, and almost all stop after a person stops taking the supplement.