I've just started using it, but not long enough to see any results yet. No side effects, though. I'll let you know how it goes!

http://altmedicine.about.com/cs/herbsvitaminsa1/a/Biotin.htm

http://www.webmd.com/vitamins-and-supplements/lifestyle-guide-11/supplement-guide-biotin

I take it sometimes.

Won't help me, becasue I've done too much damage to my scalp over the years. (Had this verified through a scalp biopsy years ago.)

I still take, just in the small hopes that maybe it will help or strenghten my remaining hair.

i take it and the hair growing back on my scalp feels very soft and strong .. and I think it's increased the rate of hair growth (only slightly though). It hasn't made a huge difference if I'm honest though.
I did read somewhere that supplements like in this case Biotin only work if you have a deficiency of that supplement- if you take excess biotin you just get rid of the excess in your waste therefore there's no point taking biotin if you don't need it.

I take it. I think it's helped my hair grow a little. I definitely think it's causing my nails to grow really fast.

I have tried taking it in the past but it made my face break out horribly so I stopped taking it. I have heard that it does help with hair and nail growth, though. Honestly I think a good multi-vitamin and an omega oil blend are the best for your overall health and ultimately your hair. When you're malnourished, the last place your body feed is your hair, so if you're healthy, you hair will grow to its potential.