Ethinyl estradiol / levonorgestrel
"I was taking Nortrel, which caused me to get cystic pimples and hormonal acne(not terrible but enough to bother me) as well as break through bleeding. I just switched/started taking Portia 3 days ago, and the sweat pimples on my shoulders have gone away, and the two new cystic pimples I had coming in are gone, and my face is looking pretty clear. It is still too soon to really tell the full side effects, but so far, so good. My biggest issues with birth controls are hormonal acne and breakthrough bleeding."