"Castor oil and hair growth" is a noun phrase describing the use of castor oil to enhance hair health. For centuries, castor oil has been used in traditional medicine as a natural hair growth stimulant.
Castor oil is a vegetable oil extracted from the castor bean plant. It is rich in ricinoleic acid, which is believed to promote cell regeneration and improve blood circulation to the scalp. This, in turn, can support healthy hair growth and reduce hair loss.