Sweet and scrumptious PUR Spearmint gum refreshes your breath with every chew. Satisfying flavour and the natural goodness of spearmint? Now that's PUR pleasure. Why choose PUR gum? Aspartame Free. Pur Gum is the number 1 selling aspartame-free better tasting, long-lasting gum. Now there's a great tasting gum made especially for people who are looking for a healthy alternative to aspartame chewing gum.