Acne
"I&#039;ve been using Ziana for about a year now, it seems to do a good job preventing and treating new acne vulgaris, but does nothing to prevent or eliminate the white heads.  I actually haven&#039;t used it in the past week, and have seen no change in my skin.  I also wash my face with a salicylic acid/glycolic acid face wash that my dermatologist sells."