Abstract: This present invention relates to a protective barrier for a rim of a beverage container, such as a glass, cup, mug, or the like. More specifically, the protective barrier is removably attachable on the rim of the beverage container, thereby allowing the user to place his or her lips and mouth on the protective barrier, rather than directly on the beverage container. The protective barrier may be disposable or reusable, and may further be comprised of an antimicrobial substance, an adhesive and a plurality of flavor crystals that release a flavor to the beverage as it is consumed across the protective barrier.