THE ULTIMATE NO2 BOOSTER: If you want to generate the max NO2 for nutrient rich blood flow, look no further than L-Citrulline 3000. With every scoop, you get a 3000mg dose of an NO-generating amino acid, plus 500mg of Glycersize, an advanced form of Glycerol, which makes your muscles absorb water like sponges to fuel performance and faster recovery. L-ARGININE IS POORLY ABSORBED and gets filtered out by the body when taken orally, making it nearly useless for NO boosting. That's why we only use pure L-Citrulline, an NO2 precursor that's scientifically proven more effective than L-Arginine. Match your workout and all the insane effort you put into it with a worthy formulation! MAXXED OUT DOSE OF 3000mg of L-Citrulline provides explosive pumps, energy, performance, and power necessary for weightlifting, CrossFit, and all high intensity sports. Trust us, when your heart is pounding out of your chest on your last rep, your circulatory system will thank you!