Carrier oils are used to dilute the essential oils used in aromatherapy. Carrier oils give essential oils the lubrication needed when massaging, allowing the hands to have less friction whilst allowing the essential oils to penetrate the skin. Carrier oils often don't get the recognition they deserve, as they are mostly viewed as a substance 'to carry' the essential oils onto the skin. Carrier oils contain vitamins, minerals and fatty acids that help improve skin health and elasticity. They can be used to help treat irritated skin, stretch marks and scars.