I starting getting acne at a young age (I would say 12 years old). And I have tried everything, antibiotics, over the counter drugstore products, toothpaste, at-home remedies, I even bought ProActive. Nothing got rid of it.
Until I went on the pill Diane. My acne completely cleared up in 2 months. I still get the occasional pimple before my period but not very often. I seriously recomend Diane for acne.
And on the plus side, you get the added bonus of knowing exactly when you'll get your period. :)
