I was taking simcor, after a few months I noticed my hair was thinner, and oily which I never had oily hair in the past. I believe it caused increased hair shedding and slow regrowth, I know simcor caused this because I was taking nothing else and not doing anything different with my hair. I stopped taking it about a month ago and no more oily hair and hardly any shedding. Thank god I realized it when I did, before it was noticeable to others, right now only I can tell a difference in my hair.