I had doubts going in; I'd tried nearly everything to regrow my hair. This program and products really work!! I love being able to do my hair in different styles again; I'd missed that more than I realized. I love being able to feel more confident in all kinds of lighting; those with thin hair know what I'm talking about; overhead lighting is brutal! My doubts have been completely erased. I highly recommend them, give them a try. What have you got to lose...except more hair?