This product is likely MSG Free.
Carbonated water, citric acid, natural flavors, sodium citrate, l-leucine, caffeine, l-isoleucine, l-valine, sucralose, potassium sorbate (preservative), potassium citrate, sodium benzoate (preservative), niacinamide (vit. B3), magnesium citrate, coenzyme q-10, pyridoxine hydrochloride (vit. B6), cyanocobalamin (vit. B12).
Caffeine from all sources: 300mg per can