2-Step mask inspired by Korean cold treatments for the face, which cools, brightens the skin, and visibly reduces the size of dark spots – for a glass-like complexion. Dermatologically tested. Suitable for sensitive skin. It is a powerful Korean derma treatment for home use. This 2-step mask combines a highly effective ampoule full of brightening niacinamide with a cooling mask that lowers skin temperature, allowing the skin to glow from within after just 20 minutes. Immediately cools the skin by 5.7 °C. 161% more moisture after one application. 91% showed a visible reduction in heat-induced redness. Application: Step 1: Open the ampoule and apply it to clean, dry skin. Step 2: Remove the protective film and place the mask on the face. Step 3: Remove the mask after 20 minutes, then gently massage the remaining ampoule into the skin.