A mud mask is pretty self explanatory so I don't need to go into detail about it. This product claims to use mud directly from the Dead Sea. After first applying the mask I felt a tingly sensation in my face, but I like when that happens to me it shows the product is really working. I let it dry and kept it on my face for the specified time and then washed it off. My face felt clean and very smooth. I would highly recommend this to others.