Nitric oxide is a vital molecule, and the body's signal for healthy circulation. It's continuously made on-demand in every tissue, organ, and system to help blood vessels relax and encourage circulation and blood pressure in the normal range. Nitric oxide levels decline with age, stress, and diet, affecting energy, recovery, and cardiovascular function. Vascanox HP® supports nitric oxide production for up to 24 hours,†supporting endurance, clarity, and long-term cardiovascular health.* Powered by Noxa24®, our patented blend of botanicals features nitrates and polyphenols, helps your body maintain the steady blood flow that every system depends on, in just two capsules, once per day