Horrible... tried to use this twice - 3 months separating each use (gave it a one week timeframe each time I tried, with the results I was scared to use more than one week) and same nightmare end result each time. I'm 32 and my skin is still pretty oily - I use 2-3 of those blue sheets a day for the oil, and I didn't have any real wrinkles yet, just a deepening of smile lines over the past year - which aren't a big deal since I know teenagers who have those deeper than mine. Purchased at the recommendation of the sales person at the Edge / Dillards along with my Clarisonic Mia. I purchased the "kit" containing cleanser, treatment, spot treatment, & day lotion... 1st time using last Fall, and then again two weeks ago (when I ran out of other products). I had the same results both times - my skin became raw, super sensitive, and eventually cracked & peeled all over. The peeling led to congested pores and the biggest cystic type zit I've had since the last time I used this product. I also believe it actually CAUSED two tiny fine line wrinkles to come up on my upper lip - they came up after my skin in that area cracked & peeled, I just hope they will fade over time. My skin is finally recovering after a weekend of slathering on moisturizer, exfoliating 2-3 times a day, using my Tanda ZAP & wearing no makeup. I went back to Philosophy Purity Made Simple this week when it arrived, and finally finally getting back to "normal".