Total Nitric Oxide® is a powdered supplement that helps support your body’s natural production of nitric oxide (NO)—a compound critical for blood flow, nutrient delivery, and performance. Whether you're strength training or pushing through a tough cardio session, TNO aids recovery, muscle recovery, and performance by supporting circulation to working muscles.†︎ Nitric oxide is naturally produced in the body from L-arginine and L-citrulline and plays a key role in vasodilation—the widening of blood vessels. This increases oxygen and nutrient delivery while helping remove fatigue-causing metabolic waste. With carefully sourced ingredients and rigorous testing, TNO is formulated to help you train longer and recover smarter.†︎