Castor oil is a vegetable oil pressed from the seeds of the castor oil plant (Ricinus communis). It is a thick, clear to pale yellow liquid with a distinct odor and taste. Castor oil is rich in ricinoleic acid, a fatty acid that has been shown to have a variety of health benefits, including promoting hair growth.
Castor oil has been used for centuries to treat a variety of hair problems, including hair loss, dandruff, and dry scalp. It is thought to work by increasing blood flow to the scalp, which promotes hair growth. Castor oil also contains antioxidants and antibacterial properties, which can help to protect the hair from damage and infection.