I get mine from hairboutique.com. Its the only place I trusted at the time I started researching it. (Customer service is excellent and very personnable). For a six month supply, I think they charge $49 or $45 per month (I cannot find my invoice, but I do know its under $50). After six months, you reduce the dosage from 2 pills per day to 1 per day. So it becomes $45 per two months. I will probably continue to take two pills per day until I reach 8 months, then reduce the dosage.