I had a bunch of black marks from when I used to pick at my acne in middle school. Like the 2nd time, I went to my dermatologist without a question she gave me a bottle of Skin Medica Lytera so if you have a dermatologist I recommend you ask them for this product. I have to warn you though I had to use the product for about 2-3 months before I really saw improvement. One of the upside to the product also that, unlike some other medications this one doesn't smell bad.