Replied By Cheryl1999 (Etobicoke, Ontario, Canada) on 09/28/2010
I read on about.com that people with a history of seizures shouldn't use biotin unless under the supervision of a qualified health practitioner.Replied By Brenda (Mt. Dora, Fl) on 03/22/2011
Regarding the previous post, www.whfoods.com states that a symptom of BIOTIN deficiency is seizures. BIOTIN is readily available in egg yolks, tomatoes, romaine lettuce, carrots, almonds, etc. Replied By Mira (Strathclyde, Scotland, Uk) on 03/27/2013
I took 900mcg of biotin for about three weeks recently for eyebrow growth. Although I got new eyebrow hair growth, I also developed itchy bumps along my jawline that started to spread to other areas of my face. Not pleasant! I have reduced the dosage to 300-600mcg a day (which I've been doing for a couple weeks) and I have experienced a few bumps here and there but no real itching. No obvious hair growth yet either.