Oneya,
I know that I replied previously, but I just wanted to share some more......hope that's ok Ladies.
This is a very informative thread. Thank you very much for starting it and keeping it going when there weren't very many responses at first!
Ladies, from my experience with Biotin, I learned fast that the more water that you drink, the more the acne will clear up and the faster and sometimes thicker your hair will grow. I look at it like planting seeds...if you don't water and and fertilize them, they won't have as good a chance at growing the way you want them to. With hair you have to WATER (drink lots of it), FERTILIZE (EO's) and SOW (Vits and Supps). Then, you will REAP (Hair growing). You Reap What You Sow.
Lol and Good Luck Growing.