This serum is formulated to correct blemishes. I have oily/combination blemish prone skin. I use this twice a day over the past month. It has a very lightweight consistency and does not leave my skin feeling greasy or sticky. It has a little spf in it, less than 15% and is a daily peeling serum. Even though it's a peeling serum it does not strip my skin. I use it with a spf as it can make your skin more sensitive to the uva rays. Having used it for the past month I have noticed how soft my skin feels and more balanced. It has been helping to reduce dark, post breakout marks as I do suffer with hyperpigmentation.