I have tried a few acne patches and I can say this is one if the beat. You can put it on directly over a pimple without popping the acne first like how other patches works.
I've been using these pimple patch for a few years now. To be honest, I've never been disappointed. It does a wonderful job at concealing and treating my pimples. The period of usage still depends on my type of pimples, some can be gone overnight while others need a few days. Sometimes patience and consistent is key to good skin.
Definitely worth the buy. Even with one nights use, the blemish significantly improves, if not disappears completely, depending on the severity of the blemish. If it's a stubborn one, using these patches consistently every night, the spot will be gone in a matter of days. It does stay on all night and does not slip or fall out throughout the night. Absolutely buy!