With natural cinnamon flavors. With other natural flavors. Guarana. B-vitamins. Taurine. Caffeine. www.rockstarenergy.com. Rockstar Horchata - Dairy and rice flour with natural cinnamon flavors plus Rockstar's powerful energy blend - traditional recipe and delicious. Dispose of properly. In Each Serving: taurine 1000 mg, guarana seed extract 100 mg, caffeine 120 mg, L-carnitine 25 mg. Total Caffeine From All Sources: 225 mg per can. Made in the USA.