Each of these oils come from a single plant. The plants that were sourced were chosen for there unique chemical profile. The suggested uses are for pure certified pure therapeutic grade essential oils only. Please do not use non CPTG oils internally or topically!
(Unfortunately, there is very little regulation on the essential oil industry. Many oils available to the public are completely synthetic and are still labeled as "100% pure" etc! If you have used an essential oil and not had the benefits you were looking for, you may not be using a product that is truly pure and as nature intended it to be.)
You wouldn't break open your plug in air freshener that is in your house and rub the contents on your body, but unfortunately there isn't much difference between those things and many of the oils you can buy at the store. Please be careful!