Sheet masks is a Korean innovation that has taken the world by storm. These disposable masks consist of thin cotton masks soaked in active ingredients. Everyone has a different focus - some provide moisture, others counteract wrinkles while some even out skin tone. Use once a week or every day, as needed! It should not be rinsed off but pulled off after about 10-20 minutes and thrown away. Super simple and easy to use, for example, when watching a movie or reading a book.