According to Business Insider, Crystal Pepsi was discontinued in 1993. Pepsico Incorporated marketed the clear and caffeine-free drink to the American, Canadian and Australian markets between 1992 and 1993.
In addition to being caffeine-free, Crystal Pepsi was free of artificial caramel color, which is a potential carcinogen that is used to add color to food and drinks. For these reasons, the drink was marketed as a healthy alternative to traditional soft drinks.
The initial success of Crystal Pepsi prompted The Coca-Cola Company to introduce its own clear cola, Tab Clear. Unfortunately, the clear-cola fad was short lived and both companies were forced to discontinue these products.