From your customers point of view Massage Oils make excellent sense because to buy each of the individual oils to mix their own is expensive and time consuming. 
These Massage Oils are blended in Grape Seed Oil. You can even add a few drops to the bath.
Your Toning & Firming Massage Oil is made with worlds known Ancient Wisdom quality Orange, Geranium, Grapefruit and Clary Sage Essential Oils and Pure Grapeseed Oil.