6 Ounces. African Royale Castor G.R.O. is excellent for all types of hair, natural, pressed, relaxed, or color treated. Doctors often recommend castor oil for babies' hair and skin because of the excellent conditioning properties of castor oil. Castor Oil plus 14 herbs and Gelatin Rich Oils (G.R.O.) provide your hair and scalp with ultimate conditioning. Apply African Royale Castor G.R.O. daily to hair and scalp to keep hair healthy and well conditioned.