Universal Nox 3. NO Supplement. Triple-Action NO Formula. Extended Release. Arginine-HCI. Ornithine-AKG. Arginine-AKG. Maximum Nitric Oxide. What It Is. Nitric Oxide. The perpetual pump. Cell-signaling vasodilators. You've heard about it, now it's time to add it to your training program. What is vasodilation? In plain English, it's when blood vessels dilate or relax. When blood vessels relax, they widen. Nitric Oxide (NO) is the key here. NO is an important endogenous pulmonary vasodilator. As a vasodilator, nitric oxide has the ability to increase your body's ability to deliver blood to working muscles. More blood means more oxygen and nutrients that are being pumped into skeletal muscles. All this translates into bigger, fuller pumps and better overall gains. How We Back It Up. What is on the label is in the box and what is in the box will help you reach your goals. We guarantee it. Backed by our 100% ironclad money back guarantee, we proudly stand behind every item we produce. If for whatever reason you are not satisfied with any product bearing our name, simply return it to your place of purchase with a receipt for a full refund. Our word is our bond.