A deeply hydrating mask for dry skin that helps locks moisture in overnight and stabilizes skin’s moisture barrier to help treat dryness, tightness and flaky skin. 100g. Made in USA. Moisturize your skin while you sleep with Kiehl’s Ultra Facial Overnight Hydrating Masque. Infused with Fountain Plant and Squalane, this face mask helps replenish skin’s water reserves for long-lasting hydration. Leave on overnight and wake up to skin that feels smooth, soft and supple. After cleansing, apply a healthy layer of the mask onto clean skin. After 10 minutes, tissue off excess. Do not rinse and allow to work overnight. In the morning, follow your normal regimen. Use this mask 1-2 times per week before bed. For all skin types including dry and sensitive.