I tried both of them. Retin A I found dried the pimples but usually leaves a big dark scar which I hate. Tazorac on the other hand, peeled my skin sooooooooooooooooooo much for about 2wks. My skin was incredibly flaky but after 2-3wks it went back to normal. Like retin A it healed the pimple but after a 2-3 months it stopped workin.