A clay mask cleans and purifies your skin as it dries on your face. When you apply the clay, it sinks into the pores and fine lines of your face, connecting with built up dirt and dead skin cells. When the clay dries, it lifts the grime away from your face so you can easily wash it away. Clay masks take about 25-30 minutes to dry when exposed to air, whether on your face or in its original container. You must store left over clay mask properly to prevent it from drying and becoming unusable.
Lay a sheet of plastic wrap flat on a table.
Spoon the leftover clay mask onto the center of the plastic wrap. If you have a large amount of clay mask to store, use a second sheet of plastic wrap to avoid overfilling.
Fold the sides of the plastic wrap over the clay mask in the center. Make sure not to allow any air to become trapped between the plastic wrap and clay mask, as this will dry out the mixture.
Place the wrapped clay mask into a plastic sandwich bag and press all of the air out before sealing it. This will minimize the chance of the clay mask becoming exposed to air and drying out.
Store the plastic bag in a cool, dark place until you would like to use it.
Repackage any unused portion of the mask in a new sheet of plastic wrap after opening. Reusing the same sheet can cause dry bits of clay to mix with the mask, causing an unpleasant texture.