I will let you in on a dirty beauty industry secret: sheet masks—which are fiber sheets with holes for your face soaked in skin serum—are overpriced and contain way more product than you need in one sitting. You could just buy a bottle of skin serum and pat it gently on your face, but where’s the fun (and Instagram selfie potential) in that?

Last year, while browsing the Japanese dollar store chain, Daiso, I found a $2 packet of “compression masks”— little pellets that expand into sheet masks when they get wet. They’re cheaper than individually packaged sheet masks, allows for customization with your favorite serum, and look like little candies that you can stuff into your bag for travel.