Tretinoin
"This stuff is magic.  I was prescribed Tretinoin 0.05 over a year ago, and after months of skin torture, and super low self-confidence, almost everyone said I had amazing skin once my face cleared up. This medication will teach you patience, but please whatever you do, bare with it. It's so worth it, I promise. There are severe breakouts in the first 3 months, but it's totally normal - it means is working. The medication gets deep in your pores and cleans out all the acne deep in your skin which is why you break out severely in the beginning of this medication. Stay on this cream too, never stop using it or you'll regret it. Once your face is use to it and clears out, use it every other day."