That alpha hydroxy crap works. Maybe at first in the way changing products gives better results than long time continuous use, but, it seems to have eaten through a build up of dead skin on my face I was prepared to scrub off with swiss botanical sand blasting scrub. Due to packaging changes I picked up the wrong stuff, well, that and I was shopping at 3 am, but more about that sooner, heh. I know its working cause my face is all tender. That and the next day my face was all oily, meaning pours were unclogged.