Castor Oil for Hair: Benefits, Uses, and How to Apply It Correctly

This review highlights that castor oil has potential dermatological uses, including enhancing hair luster, reducing hyperpigmentation, and improving skin hydration and elasticity, although rare side effects like contact dermatitis occur, necessitating further research to confirm its effectiveness in these applications.

This study found that coconut oil clinically helps with brittle hair and hair infestation, while evidence for castor and argan oils improving hair growth or quality is weak.

This study reviewed evidence on hair oils' effects on hair health and found that coconut-based oils may protect hair during prewash by reducing porosity and improving tensile strength, while rosemary oil showed evidence for promoting hair growth in androgenetic alopecia.

Castor oil is suitable for use in hair care products.