I've read a lot of reviews on this product..mostly positive and it comes with a guarantee. I'm just a little pessimistic about it. I used to have flawless skin and now my skin looks absolutely horrible. I'm only 20 but I thought I was over breakouts like mine. Guess not. I've tried Proactive, Clinique 3-step, every drug-store brands and prescriptions but nothing seems to work. I''ve done masks, pore strips, and exfoliation. While things work for a couple of months, my skin seems to become immune after a while. I'm so tired of having ugly skin while everyone else has beautiful skin and doesn't need to cover up zits every 3 seconds. I'm even having to cancel a photo shoot this week becasue my skin is so bad and I don't want to waste the photograpthers time...It sucks...Can someone please help me. I'm at my wits end!!!