Essential oils are diluted in a natural base oil, we use unrefined or cold pressed oils. We avoid highly refined oils as they have been extracted by high pressure, intense heat and petroleum solvents. We do not use oils that have been bleached, deodorised or artificially coloured. Whilst these refined oils do not harm the skin, they are completely void of any vitamins and nutrients. Unrefined base oils are health treatments in themselves, containing naturally occurring nutrients such as vitamins D and E, essential fatty acids and trace minerals such as calcium and magnesium, all of which are highly beneficial to the skin. Mineral oil, popularly known as ‘baby oil’ should never be used as a base for essential oils, and especially not used on babies! Mineral oil is derived from petroleum, not only does it lack the health giving properties of unrefined vegetable oils but makes fat-soluble nutrients leach from the body. It also tends to clog the pores of the skin, contributing to the development of blackheads and pimples. Also, if used as a base for essential oils, it hinders their absorption through the skin. Above all, the use of synthetic oil of any nature runs counter to the philosophy of aromatherapy.