I have purchased several microneedling pens, a few Dr. Pens several years ago. I feel this is a trusted brand. I am a licensed esthetician and if you are not, please use caution. I do not feel these should be in the hands of unexperienced people. It would be to your benefit to read some books or take a class because if used improperly, microneedling can cause bruising, scars, infections. I like that this pen came with a few needle options. I really like the nano needles. They are great to start while getting comfortable with the device. The device is easy to use and I'm very happy with this model. I have used Dr. Pen on numerous occasions to train new estheticians and this one will be used for that as well.