When it comes to finding a good skincare product, one ingredient that you may want to look for is hyaluronic acid. Hyaluronic acid is a substance that is naturally found in the human body, and it helps to keep the skin hydrated and plump. In addition to being found in many skincare products, hyaluronic acid can also be injected into the skin by a dermatologist in order to help reduce the appearance of wrinkles.