This is one of my favorite sheet mask especially if my skin is giving me problems. I find this mask exfoliates and soothes, leaves my skin much brighter and also clearer. Apply to clean, dry skin and wait for the bubbles! Its suggested you leave the mask on for about 10 mins, I tend to leave slightly longer until the mask stops bubbling. You will feel the mask bubbling up which I find quite soothing amd relaxing.