"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&#039;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&#039;m guessing if it&#039;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."