Hyaluronic acid, a hero skin care ingredient that draws water to the skin and locks in moisture, is the perfect thing to look for when shopping for new lip balms. “When included in lip balms, hyaluronic acid brings significant benefits to the lips and ensures that they remain moisturized and plump,” says Dr. Amy B. Lewis, a New York-based board-certified cosmetic and medical dermatologist at Lewis Dermatology. To ensure that your lips are always hydrated, we've compiled a list of the best hyaluronic acid lip balms for a soft, supple pout.