I bought these because James Welsh raved about them. I was not expecting results because when I have pimples, I REALLY have pimples. I put one on hormonal acne and while it’s wasn’t gone by morning, I put another one on in the morning and by the evening it was less red and much less full of nasty stuff. It hurt, but that’s because I have a bad habit of bothering spots, even with the patch over them. Only 4 stars because you can’t put them over treatments and they don’t work if the pimple is lurking below your skin, but for someone with a bad picking habit they are a godsend. It’s amazing watching them suck out the nasties in your pimple!