I was using the differen gel too! I thought it was crap! Didn't work for me either... Maybe you have tried retin a?? Not micro.. But the regular retin a gel? Ask your derm for that.. And if your acne is pretty bad (like mine was) ask for the stronger dose (although ur doc may not give it to u right away... Be persistant!) 0.01. That stuff is strong and will dry out pimples quick! Although it may make u break out when you first use it... Just stick to it!