I bought one pack of these about a year ago and it was probably the best purchase I have ever made. These things literally soak in the nasty gunk in pimples pretty much overnight. They've helped me tremendously whenever I have a huge nasty cyst, (which is normally gone after 2-3 days thanks to these). I decided to buy these in bulk and have only used about 3 sheets of the 10. Highly recommend, and would most definitely purchase again.