Avocado oil contains a high percentage of Vitamin E, as well as potassium, lecithin, and many other nutrients which can nourish and moisturize your skin. The oleic acid also promotes collagen production, which helps grow new skin. This accelerates the healing process, helping with issues like sunburn.
Avocado oil is extremely rich in oleic acid and monounsaturated fats, making it one of few oils that can actually penetrate the hair shaft and moisturize your hair, rather than sitting on top and coating your hair. These fats also strengthen the hair shaft and help prevent breakage.