Lately, it seems my skin is taking revenge on me when I eat 'junk' food, feel stressed, or even break a sweat (however this most likely has to be due to my age). The oils on my face, and the pimples that come with it, seemed impossible to control. However, ever since I tried this 10% benzoyl treatment, my pimples have eventually ridden themselves (with zero popping or picking), including those pesky underground ones! The oil products of my teenage skin have magically lessened up, and my pores even seem smaller (if that is possible??). However, one negative effect of this treatment is that it is VERY strong; a very little goes a LONG way. It causes occasional dry spots on my face if I get a little treatment happy, but it usually isn't something my moisturizer can't handle. Overall, I would definitely purchase this again, seeing as I am on my fifth container!