Jojoba Oil, virtually odor-free, is extracted from the seeds of the desert Simmondsia chinensis and has no aromatherapy properties in itself but makes a high quality carrier or base oil. A 10% dilution can greatly extend the life of some of the more costly essential oils, such as sandal wood. Penetrating jojoba oil is actually a liquid wax, loaded with nourishing proteins, minerals and a collagen-like substance, all of which benefit the hair and skin. Jojoba oil is considered especially helpful for problem complexions.