So after some advice from people on this site, I went to GNC and purchased Biotin. When I asked for this the worker asked what do I need this for hair loss (she couldnt tell I was wearing a hat)? of course I was a loss for words so I said well just in case. She offered me Shen Min and other hairloss products that she said works.. Did anyone ever purchase hairloss items from GNC besided vitamins.