Oil from edible macadamia nuts is called Macadamia Ternifolia Seed Oil or Macadamia Integrifolia Seed Oil. Addition of hydrogen to this oil results in Hydrogenated Macadamia Seed Oil.
Why is it used in cosmetics and personal care products?
Macadamia Integrifolia Seed Oil functions as a skin conditioning agent - occlusive. Hydrogenated Macadamia Seed Oil functions as skin conditioning agents - emollient and as a hair conditioning agent