Really, this is a super mask, effective as soon as I use it. My skin is sensitive but I don't experience any irritation at all. No matter how I peel off the mask, my skin becomes smoother and shiny. My skin is completely different. The product is perfect for use in cold, dry winters like Hanoi right now ❤️❤️❤️❤️. A product worth investing in, my loves ❤️