Top up your amino acids and enjoy an added energy boost with Amino Energy - a market-leading amino acid drink from Optimum Nutrition. A refreshing, sugar-free drink you can enjoy before, during or after exercise, Amino Energy provides a broad spectrum of essential amino acids in addition to L-arginine, taurine and beta-alanine in the premium form CarnoSyn®. This tasty drink is boosted by 100mg of caffeine to increase alertness and focus, as well as green tea and green coffee extract plus vitamin C to help maintain energy metabolism. Top up your amino acids and enjoy an added energy boost with Amino Energy - a market-leading amino acid drink from Optimum Nutrition. A refreshing, sugar-free drink you can enjoy before, during or after exercise, Amino Energy provides a broad spectrum of essential amino acids in addition to L-arginine, taurine and beta-alanine in the premium form CarnoSyn®. This tasty drink is boosted by 100mg of caffeine to increase alertness and focus, as well as green tea and green coffee extract plus vitamin C to help maintain energy metabolism. Refreshing, sugar free, amino acid and energy drink. Broad spectrum of amino acids. Premium beta-alanine CarnoSyn®. 100mg of caffeine to increase focus and alertness. Green tea and green coffee extract. Vitamin C helps maintain normal energy yielding metabolism.. Suitable for vegans and vegetarians 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 Energy is a great way to increase your amino acid intake according to your goals. Amino Energy is a multifunctional supplement, great for every athlete and bodybuilder to help support your workout regime. Read more.