Hyaluronic acid is typically found in a number of makeup products including eye shadow, moisturize, and eye serums. To use these serums, you can simply apply them after cleansing or toning, placing gentle dabs of serum on your face and neck. Then put a moisturizer on to follow this treatment. As hyaluronic acid is naturally found within connective tissue, it’s also highly populous within skin cells as well. It creates a kind of cushion to make aging skin more plump — and since it absorbs without leaving residue, you’ll find a number of popular products like hyaluronic acid masks or eye cream. However, serums are much easier to apply and less messy.