I put five stars because the patches really work, cleans the pores and eliminates acne. The main thing to do everything according to the instructions: wash your face, open the package, moisten the face area where you need to paste a strip of shiny side skin, press the strip, smooth, make sure that there are no air bubbles, 10-15 minutes can be removed when it is dry. Gently pulling the edge, remove the strip. When you shoot with the nose, you see those little pegs, black dots, is that you have accumulated in the pores. From the first time it's not to clean, you need to do regularly, at least once a week. I had no skin irritation. But if there will be discomfort, immediately remove, rinse with plenty of water. I really like the masks and strips from South Korea, excellent quality ...... If my review helpful to you, please click, «yes», as well, you can take a look at my page to read my other reviews. . I wish you health and good shopping!