Refined castor oil is used in a number of beauty product formulations that promote hair growth, treat damaged hair, and moisturize the skin and scalp. Castor oil is naturally rich in ricinoleic acid, having a typical content of 80% and higher, which is an integral fatty acid that promotes hydration.
Castor oil is primarily known for its laxative properties, it has been reported to have additional benefits, such as aiding uterine contraction, lipid metabolism, and antimicrobial activity.