No artificial flavors or sweeteners. 150 mg caffeine. 25 calories per can. 5 g of sugar per can. B vitamins; amino acids. Zest Tea has as much caffeine as coffee (3x regular teas). L-Theanine, a rare amino acid in Zest Tea, has been shown to enhance alertness while reducing the jitters and crash. Natural Caffeine: 150 mg per can like a strong cup of coffee. Sparkling Pomito Lime: Remember that sultry in Havana? Neither do, i bet it was one hell of a good time. No passport needed for this juicy twist on the Cuban classic.No artificial flavors or sweeteners. Flavorful super tea that kicks like coffee with out the crash. Sparkling Pomito Lime: Remember that sultry in Havana? Neither do, i bet it was one hell of a good time. No passport needed for this juicy twist on the Cuban classic. zesttea.com Text Me: 410-989-3832.