I started using tretinoin microsphere 0.04% on May 29th. I've been using it every night since. It seemed to irritate my skin badly at first and contribute to acne. Now my skin is clear. I didn't take pictures of it because you couldn't see in pictures, but tretinoin also helped tiny pimples on my forehead that were skin colored and made my forehead appear bumpy. My chest was the same way, even when it was "clear", and I'm happy to say that tretinoin also made those small pimples disappear.