I have recently become obsessed with sheet masks and these are great! They leave my skin feeling amazing! Gives just the right amount of hydration. I usually put it on at night and just dab the extra serum on after taking the mask on and wake up with a nice glow the following morning. I found a box of 4 at my local marshalls for only $10 but I know they're sold also on Ulta & Amazon if you don't find them at your marshalls or don't have one near by.