I can't believe that you can get salon quality micro-needling out of this little pen. This A9 Derma Pen is amazing. Make sure you watch some videos before you do it for the first time. I had to wait a little bit before I could use this because I needed a couple additional items first. I bought some numbing cream, some cream cleanser, hyaluronic acid serum and a really good moisturizer. I watched several videos before doing it to make sure I was operating it correctly. I definitely didn't want to hurt myself. I would highly recommend this if you do this at the salon. You can do it yourself, it is very easy to use and worth every penny. I did have some slight bruising, which I expected, as I bruise easily. Can't wait to see what it does after a few more treatments.