Adapalene
"So I think people should be aware that there are two products and two percentages. There is a cream and a gel. There are also a 0.1% and 0.3%. The one sold in the store is 0.1%. BenzaClin was leaving me with little bumps on my head (I'm athletic and it started to create fungus on my head) while prescription retinol gel was just making me red and puffy. I tried the 0.1% gel from Walmart. I was aware it would take awhile so I gave it two months to work. My skin looks so much better now. I use Neutrogena anti-wrinkle moisturizing on top of it. I'm guessing if it's like any retinol product you have to build into using higher percentage, at this point I could probably ask my doctor for 0.3% but I figure why mess with a good thing."