Castor oil. It’s a pretty common ingredient when you read the labels of your bath and beauty products. It’s a vegetable oil that comes from the castor bean which kind of blew my mind because who would’ve thought it came from a bean. Obviously, I’m easily shocked and awed. What’s it Made Of? Castor oil, or Ricinus communis if we are using Latin names, is a fixed oil. It is comprised mostly of fatty oils. Its structure is made up of roughly 90% ricinoleaic acid with small amounts of oleic acid and linoleic acid thrown in. This allows it to be both hydrophilic and