I've noticed a huge difference In my skin. I don't know if it's the Doxycycline or the benzoyl peroxide. When I wash my skin it's actually SOFT! I was mind blown. I'm starting to work out again (Yay Gym). I noticed less acne when I used to work out in high school. I just wear the benzaclin and a tinted moIsturizer:) sorry if this blog has a lot of grammar errors; I'm using my iPod at the gym.