Moose Juice is a seriously strong, zero sugar energy drink that's loaded with BCAA's - perfect before the gym or whenever you need a boost with no crash. Carbonated Water, D-Glucutonolactone, BCAA 2:1:1 (Leucine, Isoleucine, Valine), Taurine, Caffeine Anhydrous, L-Tyrosine, L-Carnitine L-Tartrate, Pyridoxine HCI (Vit. ).