Impressive Anti-Inflammatory Effects. Ricinoleic acid, the main fatty acid found in castor oil, has impressive anti-inflammatory properties. Studies have shown that when castor oil is applied topically, it reduces inflammation and relieves pain.
 
It's antibacterial and anti fungal properties make it beneficial against follliculitus, dandruff and scalp infections and its ricinoleic acid content helps increase circulation to the scalp and improve hair growth.