No, the vitamin C just makes it easier for your body to absorb it. The main ingredient is the L-Arginine Alpha Ketoglutarate. The gaspari nutrition plasmajet has the vitamin C. I have never seen one before that had it.

Here is a link to the company that revolutionized Nitric Oxide supplementation. It is owned by the man who invented the first Creatine supplement, Phosphagen, his name is Ed Byrd. Their product is one of the very best, no2, but it is very expensive. It has a patented delivery system from pfizer.

http://www.mri-performance.com/flash...?startpage=no2

Here is another good site to get it from:

http://www.athletes.com/store/no2/no2black.html