How to: After you’ve chosen a sheet mask to treat your skin it’s important that you use it properly to see results. Start off by cleaning your skin with a mild facial soap followed with a toner. Then place the sheet mask onto your face. Make sure the mask‘s fabric is applied correctly by gently arranging it to fit around your eyes, nose and lips. Leave the sheet mask on for 10-20 minutes. Finally, discard the used mask and massage the remaining serum into the skin in upward circular motions. You’ll also need to finish with your favorite moisturizer to lock in the skincare ingredients.