If you’ve never used a microneedling device, watch some videos to help learn how not to irritate the skin. Everyone’s tolerance is different so best not to get overconfident too soon. Try a very small area and then wait a couple of days to be sure you don’t’ have a reaction. The Dr. Pen kit itself is a solid value and generously comes with a great supply of cartridges to get you started. It is well built and nicely packaged for gift giving, too.