it's a spot treatment gel, sorry, I thought that other people would have heard of that. Oops. So yeh, it's just a gel that you use to treat pimples and stuff, and I wondered if anyone had used it and it'd worked.
If you're talking about Zapzyt, yes I've tried it and do not recommend it. It's just a 10% benzoyl peroxide gel but it tends to dry in white patches. It also seemed to cause my skin more irritation than other BP gels I've tried.