Keep your lips looking fresh and silky. After exfoliating your lips, apply a thick layer of a moisturizing lip balm, serum, or cream with anti-aging properties to lock in moisture while also filling wrinkles and increasing fullness with therapeutic components. "Look for hyaluronic acid, peptides, and fatty acids such as ceramides," Dr. says. These ingredients will help reduce the appearance of fine lines and promote smoother skin overall. The best time to address softening of the lip line is before it becomes an issue. If you notice that your lips are becoming more lined than you'd like them to be, head off the problem at its source by using a product that will keep them feeling smooth and rejuvenated.