Castor oil has been used for centuries in ayurvedic medicine to many skin, scalp and joint problems. It is also an anti-inflammatory agent, a form of detox, and also has anti-fungal properties. Castor oil is used to treat dandruff, and also give hair a lustrous shine. When massaged to the body, it improves blood circulation and also helps to reduce any water retention. Hair becomes darker and healthier looking once this oil is applied onto hair. Castor oil also promotes fast healing, and is great in eliminating stretch marks and scars. Castor oil also has great to use on skin for itches.