I don't know cause from what I know Optimum Nutrition makes it. Surely overpriced though. Try SNDnutrition for good selection of creatine that's affordable.
Just make sure it's standerized to about 300mg of Silymarin. That the active phytochemical in Milk Thistle that makes it work. remember, the bulk herb doesn't do squat.
I'm using MBI's Nitric Oxide. I've had great results from it. They use a "2:1" ratio that's suppose to better saturate the muscle cells. Anyways I've gained 10lbs and my strength is up. You really feel it after 3-4 days.