Yo, I got this thing at Wallgreens 4 about $140, thats kind of alot, but, if u have a pimple forming n u want it to jus go away, get this thing, it works, It stays on the pimple 4 about 3-5 beaps n its done.. so about 1-2 each pimple, 50 shots at zapping a pimple.. The refills r kinda pricey but u know, if u dnt wanna get called pizza face, or jus hate having a big sausage type lookin thing on ur face then get it, it shrinks the pimple to practically nothing! It's very hard to see the pimple after bout 3-5 days.. I got it n ittook part of my bday money, but was worth it.. Just the refills r a bit pricey at 24.99 4 another 50 shots.. anyways..yea, u wil feel a tingle on ur skin with the heat, but dnt b a pansy bout it, fight through it! it's quick n easy.. best acne product I've used so far!