this is my second lot of cosrx pimple patches and they have been a serious game changer for me. they suck so much liquid out of spots and really help to flatten them out and reduce redness and swelling. they stick on quite well even if i am putting them on over other products such as my toner and serum. i like the variety of sizes within the packet, it means im not wasting big patches on smaller blemishes. will probably repurchase these again rather than trial another brand.