"I originally purchased this product through my dermatologist and when I ran out I found it on Dermstore for cheaper... I love it! My skin is too sensitive for Retin-A, but I can use this product with no sensitivity issues. I use it every night or every other night, and it had cleared up my bit of acne on my chin and given my skin a nice even smooth tone. I also think its been helping with keeping fine lines at bay, especially on my forehead... love it!"