This product is likely MSG Free.
Carbonated water, citric acid, erythritol, taurine, sodium citrate, natural and; artificial flavors, panax ginseng extract, l-carnitine l-tartrate, sucralose, caffeine, sorbic acid (preservative), benzoic acid (preservative), niacinamide (vit. B3), acesulfame potassium, d-calcium pantothenate (vit. B5), salt, guarana extract, d-glucuronolactone, inositol, pyridoxine hydrochloride (vit. B6), cyanocobalamin (vit. B12).
Monster energy blend: taurine, l-carnitine. Caffeine, inositol. Consume responsibly: not recommended for children, people sensitive to caffeine, pregnant women or women who are nursing.