doTERRA Essential Oils are certified, pure, therapeutic grade, 3rd party tested essential oils. It is a global botanical network of growers + distillers from around the world, so these oil come from where they are indigenously grown. These potent essential oils are used to support physical and emotional health. They can assist in easing head tensions, + seasonal threats...providing immune + digestive support..... reducing nervous feelings + occasional sleeplessness etc. They can be used with all ages but education is imperative as these essential oils are powerful. doTERRA only sells through their site and Wellness Advocates- not on Amazon.