SUPERIOR EXTRA STRENGTH L-ARGININE - Our Premium L Arginine stacks Arginine HCI & Arginine Alpha Ketoglutarate with Citrulline, a precursor to Nitric Oxide (NO) production. We have combined the two best NO forms with Citrulline to provide the ultimate, synergistic blend of the three key Nitric Oxide ingredients to ensure you are getting ALL that Arginine can offer! SAFELY SUPPORTS HEALTHY LIFESTYLE & LEAN MUSCLE - L Arginine is an essential amino acid that converts into Nitric Oxide, thereby helping to promote healthy circulation. Often used as a sports nutrition supplement, Nitric Oxide supplementation will help promote blood flow, which means more oxygen reaches your muscle, brain, heart, lungs and other organs. More blood flow to your muscle means more muscle gains and vascularity, leaving you looking your best. SUPPORTS BIGGER PUMPS, PERFORMANCE, VASCULARITY AND GAINS - Arginine supports energy levels and lean muscle. In addition to promoting blood flow, Arginine is also well known for energy production - perfect for weightlifters, athletes, runners and everyday active people. MOST RELIABLE - Our formula contains NO preservatives, chemicals, artificial ingredients or sugars so you can trust that you are using an all-natural supplement and you'll love the natural increase in energy & focus without the jitters! It also undergoes a stringent process of third party testing and documentation to ensure each bottle has exactly what it says it has. LOVE IT OR YOUR MONEY BACK - All of our products are backed by our lifetime guarantee. If you aren't satisfied, let us know and we'll refund you no questions asked. Order with confidence!