Jojoba: Simmondsia Chinesis - Shelf-Life: Indefinite Great for mature, aging skin and wrinkles although good for all skin types. Particularly beneficial in facial and body oils as well as hair treatments. This is not really an oil but a liquid wax which is derived from the jojoba bean. It is very similar to our own body oil secretion known as sebum. It is rich in Vitamin E and will not turn rancid like other oils as it has antioxidant properties. Note: It is a somewhat pricier oil and is frequently blended in a small dilution (10%) with other oils. It has a very long shelf-life.