Pepsi Max debuted in Great Britain and Italy in April of 1993. The rollout was expanded to Ireland the following September, and to France, the Netherlands and Australia the following December. By the end of 1994, Pepsi Max was sold in approximately twenty countries. By the end of 1995, that figure had more than doubled.
The product remains unavailable in the United States (PepsiCo's native market, and the largest consumer of carbonated soft drinks), where one of its principle ingredients had not yet been approved by the Food and Drug Administration. The ingredient in question "acesulfame potassium" is combined with aspartame to provide the beverage's sweetness. Some people claim that this results in a better taste than that of other diet colas (most of which are sweetened with aspartame alone).