A disposable fragrance-carrier composition retainer for retaining fragrance-carrier compositions during heating, facilitating the removal of one fragrance-carrier composition and its quick replacement with a different fragrance-carrier composition, and allowing for easy disposal of the composition byproducts. The fragrance-carrier composition retainer includes, among other elements, a continuous base and at least one sidewall. The retainer is generally shaped to hold the wide variety of commercially available fragrance-carrier compositions, including tart type candles, wax potpourri wafers, and heat activated liquid potpourri, and is configured to be received by the multitude of fragrance-carrier composition heating devices more commonly known as tart burners or potpourri heaters. The at least one sidewall is proximally joined to, or formed with, the base at a sidewall bottom edge and has a distal sidewall top edge and may include at least one removal tab.