Julian Wojtowicz voted up 6/10/2016 What Will Happen If I Take Too Much Biotin? Is Biotin Really A Vitamin That Cause Hair To Thicken Check with your doctor, I took biotin for months, it did nothing for me.
Julian Wojtowicz voted up 6/10/2016 What Will Happen If I Take Too Much Biotin? Is Biotin Really A Vitamin That Cause Hair To Thicken It is a water-soluble vitamin, so you can't overdose on it.