This product is likely MSG Free.
Energy blend: taurine, glucuronic acid (as or from glucuronolactone), malic acid, n-acetyl l-tyrosine, l-phenylalanine, caffeine (230 mg), citicoline. Other ingredients: purified water; natural and artificial flavors; sucralose; potassium sorbate; sodium benzoate and edta (to protect freshness).
Contains: contains caffeine comparable to a cup of the leading premium coffee. Limit caffeine products to avoid nervousness, sleeplessness, and occasional rapid heartbeat. You may experience a niacin flush (hot feeling, skin redness) that lasts a few minutes. This is caused by increased blood flow near the skin.