This is one of my favorite over night products. After using it for a couple of weeks, my skin was brighter and behaved better throughout the day. My makeup stayed put for longer, I had less dry flaky patches, and less oil breakthrough in my t zone. I will say it's really important to get a good mechanical exfoliation alongside this product. People who claim that it made them break out are not exfoliating. Since it helps loosen dead cells and increase turnover, your face needs a little help getting the stuff off that this product loosens. If you don't, like with any other product of this sort, or just in general, the dead cells will clog up your pores. If you can be responsible for getting a quick exfoliation each morning when you wash your face (which you'd better be doing or there's no point in using any skin care products), then this product will do good things for you.