Stop recurring, stubborn blemishes in their tracks with Hanhoo Extra Strength Blemish Patches. These hydrocolloid acne patches are infused with ultra zit shrinking Salicylic Acid to clear pores and prevent blemishes from reappearing. Use on blind blemishes to protect from further infection, or on stubborn, large blemishes to shrink and clear. Comes with 36, 12 mm patches to ensure that the entire blemish is covered and protected. Patch them day or night for at least 6-8 hours without the risk of skin irritation. Gentle on sensitive skin and adhesive on oily skin to speed up the blemish healing process for happier, healthier skin.