acne
"I never ever had an issue with acne in my life until I started working after college (I correlate it with the crazy stress at work).  So, I started using 0.25% Retin A about a year ago.  A couple months in, I wasn't seeing the results I wanted; still breaking out, skin flaking.  I emailed my doctor and asked for the 0.5% strength... big mistake. I used that for about three months and my skin could not tolerate it AT ALL.  Regardless, I wasn't about to give up totally on Retin A! So I went back to using the 0.25% and FINALLY got the results I've expected all along.  I always get comments now on how clear and "fresh" my skin looks. Retin A (especially with a clindamycin and benzoyl peroxide cream) was a miracle for my skin. No pimples.. ever!"