Castor oil which is rich in antioxidants is obtained from castor seeds of the Riccinus communis plant and is used by people all over the world to treat various ailments like multiple sclerosis, parkinson's disease, arthritis and rheumatism. It is also safe to use as a home remedy to thicken eyelash, remove wrinkles, acne and skin problems.It is an excellent antiviral, anti fungal and antibacterial agent which reduces pain and improves immune system.