"this stuff works fantastically well.  i am a 30 year old female with adult onset acne. i have been struggling with cysts, nodules, and pustules for eight months, exclusively on my chin.  i was using a retin-a 0.025% product but it wasn&#039;t enough.  i started taking benzaclin around the same time as yaz (birth control) and minocycline (antibiotic) and the combination cleared me in a month.  the benzaclin stands out in my regime because it single-handedly dried up all of my large pimples upon first use (i noticed a dramatic improvement the next day, and then every day after that).  it will take a bit for all the current pimples to heal themselves (and some may surface over the first two weeks) but you should notice improvements right away!"