We just had a 15 yr. old foster daughter join our home and she asked me what she could do to get rid of her acne. She wears makeup (partly to cover it up) and so does need something to clean that off each day. Her acne is not terrible, but she does have some.
My own experience with acne was that the more I tried, the worse it got. Then, when I switched to just rinsing my face with a washcloth in the shower (just water) and then applying jojoba oil afterwards, my skin improved quite a lot. But I need advice for a teen who wears makeup!
I also talked with her a bit about diet and how it affects acne, but just a bit.