No, Crystal Light does not contain caffeine. Instead, it is flavored with artificial sweeteners and colors to give it a light flavor. It also contains trace amounts of sodium ascorbate and potassium citrate which are added for taste enhancement. Although this product may have some health benefits, such as being lower in calories than regular soft drinks or juices, there are still potential risks associated with consuming large amounts of artificial ingredients over time. Ultimately, if you're looking for an energy boost without the jitters that come from caffeine consumption then Crystal Light is a great option!