Ok so my biggest problem with Acne was minor facial breakouts but substantial breakout on my back and chest. It was out of control. After trying various methods I discovred a product called Bio-Minal. Essentially it aids in bile secretion and detoxing the liver/gallbladder as well. From what I've learned Acne is cause when the liver/gallbladder is to overun with toxins and other crap and so it overflows and seeps out onto your skin resulting in acne.
It is a fantasic product that has also greatly helped me in digestion and elimintation. Here is the site to get this stuff (and alot of other good products too)