These patches are amazing. I put them on after my skin routine and then let them stay on overnight or 12 hours if I can and they take my pimples away. They truly work and I love them. I bought two sets of these and have given them to family and friends who have cyststic acne and they do them them. It draws out the fluid and the patch will turn a whiteish color once it's been on there and you can truly see the difference after you use them. It reduces the size of my acne problem spots and has made such a difference in my life. The acne goes away faster and is less freaquent and they are an amazing price. You can't beat the deal for these. They came super super quick and the delivery was fast. They shipped them right away and I got them the next day. They are so hard to have and you can't even tell you are wearing them. I'm very pleased and will continue to buy more!