Always wanted to know exactly what carrier oils are? What kind of oils, which are also called as base oils, are being used to dilute another type of oil that is called the essential oil? Why it is important to mix carrier oils with essential oils? And if done wrong the affects it could have on one's health Did you know Carrier oils also require a specific method of growing since they have to be as pure as possible? You have to make sure that the carrier oils that you use are organically grown-not artificially grown wherein chemicals have already been applied-and cold pressed. Because carrier oils are being mixed with essential oils for aromatherapy (which of course involves the human skin) so they are going to be absorbed by the human body. Therefore, it is important that the oils you use are organic and pure so that there will not be any unwanted substances that will be absorbed by the skin along with these oils.