“Castor oil is extracted from the castor bean, which is the seed of the Ricinus communis plant,” says Dr. Sheel Desai Solomon, a board-certified dermatologist and founder Preston Dermatology + Skin Clinic in Raleigh, North Carolina. “Though the plant is technically native to tropical Eastern Africa, it’s managed to journey around the world and can be found in the southeastern region of the United States.” According to Solomon, castor oil is rich in omega-6, omega-9, and vitamin E, which mean it’s a nourishing and hydrating ingredient. Castor oil also has anti-inflammatory and antibacterial properties thanks to its high ricinoleic acid content. All of this makes it a well-rounded beauty oil with many topical uses. Solomon seconds that statement and adds, “While I can’t say that it would hurt your hair growth effort, it is not scientifically proven to be an effective way to stimulate your follicles.” You can, however, apply castor oil directly to your hair at the ends to help seal the cuticle and nix the appearance of dry, split ends. You can also apply it throughout your hair to tame frizz and improve hair sheen. Just a tiny amount is all your need, and you can apply it to both wet or dry hair.
