Make sure you\'re prepared for your workout by enjoying Amino X from BSN beforehand as well as during and after exercise. A refreshing, sugar free amino acid powder, Amino X is packed with 10g of amino acids per serving that includes 4g of BCAAs, 90mg of L-arginine and 2.5g of taurine. Plus, vitamin D and vitamin B6 help reduce fatigue and support energy-yielding metabolism. Make sure you\'re properly prepared for your workout by enjoying Amino X from BSN beforehand as well as during and after exercise. A refreshing, sugar free amino acid powder, Amino X is packed with 10g of amino acids per serving that includes 4g of BCAAs, 3.5g of L-arginine and 2.5g of taurine. Plus, vitamin D and vitamin B6 help reduce fatigue and support energy-yielding metabolism. Refreshing sugar free, amino acid powder. 10g of amino acids per serve. 4g of BCAAs per serve. Includes L-alanine, L-arginine and taurine. Vitamin D and vitamin B6 helps reduce fatigue and support energy yielding metabolism Amino acids are the building blocks of protein, of which nine are essential and 11 non-essential. The essential amino acids, or EAAs, can\'t be made in the body so you must obtain them through your diet. Amino X is a great way to increase your amino acid intake according to your goals. Amino X is an amino acid product built upon 4g of BCAAs in a 2:1:1 ratio per serving