I haven't actually used either yet, but I ordered some dermmatch a couple days ago. I decided on dermmatch because supposedly it looks good, you can swim in it, and a can ($30) lasts 8 months on average (you actually can get 2 cans for the price of one on your first purchase). So it's economically the best choice it seems. I Think in conjunction with toppic it would look even better, but I just wanted to stick with one thing. I've read about toppick falling out and stuff; that you need to kind of 'seal' it on your head with hair spray or something, and I don't use stuff on my hair usually. I also thought about couvre but decided mainly that it wasn't as cheap, thought I've read good things about it. I've heard mostly good things about all 3 of these concealers.