Expertly designed to deliver and retain intense hydration for 72 hours post use.*Overnight Line-Smoothing Results .Visibly improves the look of fine lines and wrinkles as well as flaking, dryness and crepiness. Provides clinically proven skin barrier to prevent TEWL (transepidermal water loss - moisture loss through the skin barrier. H.E.O. Mask is used within professional treatments across the globe to deliver both soothing and visible age-defying results.