Like most oils, the formula works wonders for locking in moisture. But rosehip oil is specifically known for helping the skin to maintain its elasticity. That’s just fancy talk for bouncieness. When the skin loses its elasticity, which comes naturally with age, it won’t be as firm and taut as it used to be. That’s why you’ll start to see sagging, wrinkles, and even stretch marks. And many credit rosehip oil to helping with all three.