Product Details An intensely hydrating overnight mask that helps lock in moisture to stabilize the skin barrier. Stabilize your skin barrier with Kiehls Ultra Facial Overnight Rehydrating Mask. Formulated with a high concentration of 10.5% Squalane and Glacial Glycoprotein this mask transforms from a balm to oil texture and melts into your skin. Prevent excess overnight moisture loss and treat dryness tightness and flakiness in the skin with this hydrating mask. Wake up to nourished healthy-looking skin. Silicone-free fragrance-free dye-free and mineral oil-free. How To Use To use apply after cleansing use fingertips and work a small amount of product into a smooth consistency. After cleansing apply a healthy layer of the mask onto clean skin then gently massage until the texture transforms from balm to oil and melts into skin. Pat excess into skin neck and chest and do not rinse. Allow to work overnight and in the morning follow your normal skincare regimen. This mask can also be use