If you have adult acne, like I did, please give this stuff a shot. It eliminated my adult acne that appeared when I was 34-35. Deeper pimples around the nose, mouth and back that didn't go away with conventional treatments. I take about 1.5-2 grams a day. I feel compelled to share, because adult acne can really be a problem (physically and mentally) and this worked. I also tried zinc, vitamin a, and vitamin e, but they only helped marginally.