Xyience XNO(90-cap) is for anyone who wishes to Extend their muscle pump; signal muscle growth and speed recovery; and increase their strength, stamina and sexual vigor. XNO is a Nitric Oxide increaser. Nitric Oxide, a key molecule manufactured by the body, causes vasodilation (an expansion of the internal diameter of blood vessels), which in turn leads to increased blood flow, oxygen transport, delivery of nutrients to skeletal muscle, and a reduction in blood pressure. Two amino acid compounds called arginine alpha-ketoglutarate (A-AKG) and Arginine-Ketoisocaproate (A-KIC) can boost short tem Nitric Oxide levels. A-AKG & A-KIC are the key ingredients in XNO, a Xyience product formulated to help produce the body experience some amazing changes in as little as one week.