Facial Sheet Masks vs Traditional Face Masks First, let's talk about what sets a facial sheet mask apart from a traditional face mask. The most obvious difference is the delivery method: a traditional mask is usually a cream or gel often applied in a thick layer to the skin and left on for a specific period before being washed off. It comes in various forms, such as clay mask, peel-off mask, and cream mask, and is designed to target specific skin concerns, such as acne, dryness, or ageing. On the other hand, a facial sheet mask is made of thin sheets of cloth soaked in a serum or essence. The mask is then applied to the face and left on for 20 to 30 minutes before being removed.