Hyaluronic 554 Youth Serum from Balance Cosmetics. 24 Hour Non-Stop Moisturisation for the face, eye and neck areas. Suitable for all skin types and particularly effective on dry skin prone to wrinkles and is non greasy. Immediate hydration. Clinically proven. Apply the serum by gently smoothing it over the face, including the eye area and neck. For best results use morning and night.