EO’s are short for Essential Oils. I use them everyday. Many items in my home are made by me with EO’s. I save money everyday! I eliminated toxic products easily. I only use doTERRA because they are the best! I love doTerra so much that I have my own doTerra business called NoCoDoterra. I have a public FaceBook page https://www.facebook.com/NoCoDoterra and some closed ones for my customers and my members. Come and see what the big deal is all about. They are truly game changers.