Here are the differences. FO is sold by weight. FO is pure fragrance oil with no dye or alcohol added. Please understand some bottles will not be full due to fragrance oils weighing different amounts. CO is burning oil that might have dpg or color added. CO cannot be used for any crafts it is formulated for oil warmers and oil burners only. These oils will be full bottles and are not sold by weight. All oil will be shipped in H.D.P.E. bottles with generic labels. New fragrances added often. Please note: Some fragrances may not be available in larger sizes.
