How do I apply the two-step mask correctly to get the intended effect?

Start with clean, dry skin. Remove the mask from its pouch and unfold it. Position it over your face, neck, and closed eyelids, smoothing to ensure good contact. Leave it on for 15 to 20 minutes as the essence absorbs, keeping the mask in place. After removal, gently pat in any remaining essence, but do not rinse. Open the second step, the serum ampoule, and apply the entire contents evenly over the same areas. Massage it in lightly until absorbed. This sequence lets the sheet's concentrated essence hydrate first, and the serum then seals the effect, aiming for smoother, softer-looking skin.

Since the formula is designed for the neck and eyelids, apply those areas carefully, especially if your skin is sensitive there. Avoid applying the serum too close to the lash line. You can use the mask 1-2 times a week or as desired for a quick refresh. Store unused ampoules upright in a cool place.