This is the best arginine I have found to date. I mix my own pre-workout, and this, in combination with beta alanine, creatine, and BCAA powder, works like a charm. It gives me ridiculous pumps, a very clean energy boost, and increased focus. I don't feel like there is a need for stimulants or anything else with the results I am getting. This is an extremely quality product, and is the only one I will use from now on.

Started AllMax Nutrition Arginine about a month ago to support vascularity and wasn't disappointed. It is extremely potent and I saw results after using it for a week.