QUOTE(Jessica A @ Jul 30 2007, 08:46 PM)

Personally... I bought the Zeno when I started getting really bad cystic acne on my chin and forehead. I treated each one at least twice in a row, and I also treated a few smaller ones I had coming out. For the really deep under-the-skin ones, both of which I caught when I first felt them coming out, the Zeno did absolutely nothing. In fact, I'd almost swear it made them worse - I still have the mark for the last one on my chin that I tried to treat with Zeno, and it's been mostly gone for almost a month now. I just returned mine to the store, because I was totally unhappy with it and felt that buying it was a waste of my money.
Maybe I should have listened to my dermatologist's office when I called to ask about it, and they recommended against it.
Sorry it didn't work for you. Did you try to use it on cysts? The product booklet says that it is not meant for bad cystic acne (or even for cysts at all). I think it is limited in its use, but does work for a certain subset of people with a more mild-moderate form of inflamed acne. When I mentioned using it on deep pimples, I didn't mean cysts. I just meant those spots that start deep down, hurt a little, take awhile to surface and then turn into an inflamed papule or pustule.