What is it? A naturally forming sugar found on our skin that holds onto water, keeping your skin hydrated and moisturized throughout the day. As we age, our body’s ability to produce hyaluronic acid decreases. But you can use skincare products to supplement your hyaluronic acid levels through topical moisturizers and serums. Oral supplements can also boost the body’s hyaluronic acid production. This is an active ingredient to seek out if you’re looking for safe ingredients for thirsty skin.