Initially, I didn't want to buy this product because of one of the ingredients (Frankincense). I thought my skin would react to that. However, this has been nothing but a game-changer for my skin. There was a little bit of purging in the start, however, it eventually went away. I have been using a pea-sized amount every night, sometimes during the day as well, along with the niacinamide glow drops and the AHA/BHA toner. Not only have the blemishes and redness gone away but my skin feels smoother...