I’m really not an acne expert at all, so I’m sorry but I don’t know what to tell you about that.
As for natural beauty products… For skincare, I am a big fan of Lush and DressGreen. Some of my favorite Lush products are the Angels On Bare Skin cleanser, Celestial moisturizer, Mask of Magnaminty facial mask, and Breath of Fresh Air toner. Some of my favorite DressGreen products are the Protective & Moisturizing face cream and the cucumber ginseng eye cream. DressGreen also has really lovely shampoo bars if you’re into that.
As for natural makeup, I don’t use a whole lot of that. One thing I can heartily recommend is the tinted lip balm from Sobe Botanicals (this is the one I have). The formulation is DIVINE, it smells like vanilla, and it provides a gorgeous hint of color – not too much, not too little. Absolutely one of my favorite lip products of all time.
If you want to go really natural, you could read up on the oil cleansing method. A lot of people have brilliant success with it once they get through the detox phase.