Cons of Taking Biotin:
My oppinion: I've been taking Biotin for about a month now, and I can see a difference. My hair grows a lot already, but my nails take forever. Biotin has helped speed up the process. Biotin takes about a month to get into your system, but it could take longer than that (up to 6!!) so be patient, because you never know what might work for you! I'm not a doctor of health care provider, so before taking Biotin or any vitamin you should talk to your doctor about it, and then follow his advice!