How much biotin should I take for fast hair growth? 2 to 5 milligrams
Is 7500 mcg of biotin too much? Actually, there’s no upper limit for biotin because it’s water-soluble, which means your body only stores what it needs. The rest is excreted in your urine. Additionally, there’s no evidence of high levels of biotin being harmful, which is why you’ll commonly see biotin supplements containing 5,000 to 10,000 mcg.
How long after taking biotin will I see hair growth? It takes months to see results on biotin. According to The Journal of Clinical and Aesthetic Dermatology (source), biotin takes around 90 days to begin to work. Contrary to some of the claims you may have heard, biotin is not an overnight remedy that will magically give you 5 inches of hair growth in 24 hours.
Does biotin speed up hair growth?
Biotin, also known as vitamin B7, stimulates keratin production in hair and can increase the rate of follicle growth.