Jellymasks are made mainly with refined alginate. They contain more alginate than regular rubber masks. So Jellymask texture is like jelly, which provides full hydration and a natural cooling effect all at once. Also they create completely a soft, vacuum-like seal over the skin. This function is the most important. Under the vacuum seal, the mask pushes hydration and nourishing ingredients (from the mask or other topical products) deep into the skin. This is why we suggest using the mask for 15-20 minutes near the end of a skincare protocol in order to push all applied nutrition into the skin.