This product hasthat may have Barley.
Water, citric acid, malic acid, caffeine, contains less than 2% of taurine,guarana extract,ginseng extract (panax), niacinamide (vitamin b3), vitamin b6, vitamin b12, natural flavor, sucralose and acesulfame potassium (sweeteners), sodium citrate, potassium citrate, sucrose acetate isobutyrate, gum arabic, red 40, yellow 5, yellow 6, sodium benzoate and potassium sorbate (preservatives).
Caution: contains caffeine - 60mg/squeeze (1/2 tsp) - 18 servings/bottle.,for adult use only. Always dilute. Use caffeine in moderation. Do not add to alcohol or caffeinated drinks. Consult doctor if pregnant/nursing.