What It Is: Kiehl's intensively hydrating face mask for dry skin helps replenish and strengthen your skin's moisture barrier to help increase barrier stability and prevent excess overnight moisture loss. Infused with 10.5% Squalane, this transformative balm-to-oil overnight face mask melts into your skin and stabilizes the moisture barrier to help boost resilience against external aggressors. This hydrating face mask helps prevent dryness for up to three days. Wake up to nourished, flake-free, healthy-looking skin. Paraben-free, fragrance-free, mineral oil-free, silicone-free, dye-free. What It's Good For: Deeply hydrates skin to minimize visible dryness and flaky skin overnight Helps prevent dryness for up to three days Helps prevent excess overnight moisture loss and improves moisture retention Replenishes skin's essential lipids to strengthen skin's moisture barrier to help skin become more resilient against external environmental aggressors Feels deeply nourishing and comfortable on skin, without clogging pores or feeling greasy For all skin types including dry, tight, flaky and sensitive skin Non-comedogenic, non-sticky Packaged in 100% post-consumer recycled jar In a Consumer Study: 93% agree skin feels deeply hydrated* 90% agree skin looks flake-free** 84% agree skin feels less tight** Key Ingredients: 10.5% Renewable Squalane - A signature Kiehl's ingredient, Squalane is a highly-refined botanical lipid derived from sugar cane. Within Kiehl's formula, Squalane absorbs easily to deeply hydrate and help stabilize skin's moisture barrier at night, when skin loses the most moisture. In Kiehl's formulations, Squalane is renewable and responsibly sourced. Responsibly Sourced Glacial Glycoprotein - Originally sourced from Antarctic Sea glaciers, Glacial Glycoprotein within Kiehl's formulas helps to deeply hydrate and maintain skin's moisture balance. Each time Kiehl's Glacial Glycoprotein is produced, it's done in an environmentally friendly manner, without further extraction of the glaciers, making this skincare ingredient a renewable raw material. How to Use: Overnight Deeply Hydrating Face Mask: After cleansing at night, use fingertips and apply a healthy layer of the mask onto clean skin. Gently massage onto skin until texture transforms from balm to oil, allowing the formula to melt into skin. Pat excess into skin, neck and chest and do not rinse. Allow to work overnight, and in the morning, follow your normal regimen. We recommend using this overnight face mask 3x per week. Gentle Cleansing Balm: Use fingertips to gently massage a small amount onto dry skin. Wipe off with dry face cloth. For a deeper clean and hydration, leave on for 60 seconds before removing. 15-Minute Treatment: For deeper hydration on dry areas needing extra nourishment, apply a visible layer of formula on skin and leave on for 15 minutes. Tissue off any remaining formula. *Based on a consumer use study on 95 subjects after 2 weeks **Based on a consumer use study on 95 subjects after 1 week