What It Is: An overnight blemish patch with Hydrocolloid Technology to absorb oil gunk and cover blemishes. What It Does: This overnight patch visibly flattens blemishes, absorbs oil, and helps prevent picking for clearer-looking skin by morning. Suitable for visible blemishes. How to Use: After cleansing and drying the affected area, peel a patch from the sheet, apply over the blemish, and leave on overnight. Remove in the morning.