Huh. My daughter just started taking it as a supplement to try to regulate her hormones. It seems to be great for many things.
No idea about using it for acne, but I know the same daughter makes a homemade makeup remover with olive oil, baby shampoo and water. Maybe substitute the olive oil with coconut oil to make a face wash?
http://www.kristanlynn.com/2011/05/diy-clean-eyes.html
Huh, after going to the link they suggest using coconut oil. She swears by it and she has great skin for a teenage girl.