As we age, we want to retain plump, youthful skin, right? Once we hit 40, our skin starts to lose its natural moisture, elasticity, and plumpness, making it more prone to fine lines and wrinkles. One skincare ingredient that can significantly improve the appearance and health of mature skin is hyaluronic acid. It is an important skincare ingredient in Asian beauty products, and a skincare specialist in Japan recommended that I use it every morning and night. Which I do! Using