I've been using it for about three years now. Twice a day religiously. I originally had some minor crown and temple loss. After the first six months I recovered quite a bit of density and coverage with only just minoxidil (5% generic). I also used nizoral 1% (over the counter) every other day. About around the 2 1/2 year mark i started seeing increased hair loss. Ive loss quite a bit of ground and Im currently considering starting finasteride to see if i can recover some of the lost ground. From my experience, minoxidil peaked at around the 2 year mark.