Watermelon seed oil is rich in many properties that make it nutritious and healing for the skin. Some of these components include: 1. Use in Oil Cleansing Oil cleansing is the trendy new method of cleansing your face that you may have heard about. There is no soap involved at all. Only oil and a cloth dipped in hot water are used to cleanse, clean and exfoliate the face. Watermelon seed oil makes a perfect oil for oil cleansing because it really penetrates the skin and removes impurities, dirt and dead skin. You can use watermelon seed oil alone, or in combination with a thick oil like castor oil. 2. Removes Dark Circles Watermelon seed is great at reducing and removing dark circles around the eyes. It contains a good amount of Vitamin E, which is critical in dark circle removal. Vitamin E is a powerful antioxidant and it contributes in eliminating dark circles by fighting free radical damage and promoting blood circulation to the area. Dab 2 drops of watermelon seed oil under the eyes every night before you go to sleep.