I just bought this today from Pacific Mall. I bought the 15 mL for $138. I dunno if this is gonna help cuz' i have tried pretty much all the expensive stuff, but nun' worked on me. I'll be extremely happy if this works cuz' this is my last hope. If this doesn't work then I won't be able to trust any product available. I'll just give up on everything. Also, I was told to put the drops on top of the cotton. Its very time-consuming but I just wish it helps. I'll keep my results updated.