Ice Tea is an iced tea based on black tea and therefore contains theine. Theine, like caffeine, is a substance found in many foods that stimulates the nervous and cardiovascular systems, reducing drowsiness and reaction time. The difference between caffeine and theine is that caffeine works very quickly and more intensely, while theine works longer, but less strongly. This means that caffeine will keep you awake and feeling good within 2 to 3 hours of drinking coffee or a caffeine drink. While a theine drink gives you a little more energy during the day.
