Clear your complexion with a heart, star or cloud-shaped hydrocolloid patch, formulated by dermatologists in Korea to treat pimples and dark spots. After cleansing, apply one of the small cotton-candy-colored skincare stickers to the affected area and the calming aloe vera and tea tree work overnight to draw out impurities and heal skin. These Korean beauty acne patches are a pain-free and fun way to treat blemishes and soothe irritation.