Hyaluronic Acid is an excellent option for treating sunken under-eye areas. The procedure involves injecting the product into the tear trough area, providing support to the tissues and eliminating the hollow appearance. It also deeply hydrates the skin, resulting in a more rested and youthful appearance. The hyaluronic acid filling procedure is quick, performed in a single session under topical anesthesia (cream), and provides immediate results. Follow-up may be conducted after a week if deemed necessary..