I had no idea how many uses there are for grapefruit essential oil! I ordered the SlimWay Grapefruit Essential Oil to use in a diffuser. There are so many uses easily found in an online search. Essential oils are expensive, but this is affordable and easy to use! The pleasant aroma of grapefruit oil makes it a very effective as a room freshener. The oil is not as concentrated as some other brands, but since I use this in a diffuser that is not an issue. This has functioned just as well for me.