Add desired face mask ingredients to Mixing Tray and use Mask Muddler to mash & mix thoroughly. Use Mini Mask Applicator Brush to evenly apply mask, mess-free. Store any leftover mask product in the Tray, cover with the Lid, and place in your refrigerator for an additional 1-2 days. After use, rinse thoroughly and air dry. Not safe for dishwasher use.