We get asked this probably three or four times a week. Someone comes in, picks up the rosemary oil, puts it back, grabs the castor oil, reads the back of it, puts that down too. It's a whole thing. The bottles don't really help either because they all kind of say the same stuff. Here's what we actually know. Treatment Oil vs Pure Oil Real Quick Pure oils are one ingredient. Just lavender. Just peppermint. That's the whole bottle. Treatment oils are blended already, like rosem