A chemotype is a way of saying that the same plant can have different types of chemicals. Most essential oils don’t have different chemotypes, but when they do, it’s important to note because the chemotype determines their therapeutic properties. These variations usually occur when the same plant is grown in different environments. Thyme, for instance, has six chemotypes that have different effects on the body and mind. We currently sell two variations: Thyme Thymol, and Thyme Linalool. “Thymol” and “Linalool” are their chemotypes.