When I have rough skin, I use it as a soothing pack by sticking it on my face for about 5-10 minutes. After using, the skin feels cool and comfortable. The size is about the size of the back of the hand. If it's your own face, use 9-10 sheets to fill your face. Instead of individually wrapping each piece, the case contains pads soaked in lotion. Since the attached pin is attached, it feels like taking one by one with that pin. It's just like a lotion, so if you're worried about dryness, I think it's better to use a separate serum / lotion pack.