“After age 20, we produce 1 percent less collagen every year,” says Dr. Engelman. For most people, the signs of aging around the lips begin to show between 30 and 40, she says, and “many patients find that it is a significant contributor to their perception of aging.” Those signs include thinner, more wrinkled lips and fine lines surrounding the mouth. But luckily, there are lip products specifically created with anti-aging in mind. Dr. Engelman advises looking for ceramides (for locking in moisture and protecting from environmental aggressors), peptides (the building blocks of collagen), hyaluronic acid, and/or coconut oil in their ingredient lists. Regardless of which product you choose, Dr. Engelman says the key is hydration, along with “keeping lips nourished and moisturized helps them look fuller, more defined, and consequently, more youthful.” Below, read more about some of the best anti-aging lip serums you can buy right now.