A whopping 3000mg of Arginine lead me to this one. It says on the label it has 200 mg of caffeine, but it really didn't give me that much of a kick. The pumps were decent at best. Where the product shines is the endurance. I was able to get through more reps then usual later on in my workout. The taste was pretty bad, I got the pink lemonade flavor. It doesn't compare to SuperPump or Jack3d for me. Probably won't be purchasing again.

this is the best product i have ever taken. i have tried many nitric oxide products. one scoop of this stuff and you will know what i mean. there is no comparison to any other product! better than SuperPump250 and better than nanovapor!! And it tastes GREAT!!