Su:m37 Water-Full Timeless Water Gel Mask

It consists of 3 steps.

Wipe your face with toner and apply the first sheet mask.

Apply the second ampoule and then the third cream.

It's really great for traveling; after washing your face, you don't need anything else. With just this one sheet, you're pretty much done for your skincare routine. Since it's a water-full line, it's perfect for light use in the summer.