This is a bubble bath recipe meant to make the most of the scent and exfoliating properties of fresh grapefruit juice. Due to using a fresh ingredient, this isn't a bubble bath intended to have a long storage life. If want a version of this with a longer shelf life, simply omit the grapefruit juice and use an additional 10 drops of grapefruit essential oil. This version should store well for at least 6 months.