It costs >$100 to have one round of micro needling done by a professional. For that price, you can try the Dr. Pen Ultima A9, which was priced at $98 when I picked it up. Since I am a scaredy cat when it comes to voluntarily puncturing my face thousands of times, I got together with my sis to try this out. The two of us slathered on enough numbing cream to keep nerve endings dead for 4 hours, disinfected everything, slathered on some hyaluronic acid serum and went to town with the A9. It took less than 10 minutes for each of us to do our faces and necks using the needle at the beginner depths of 0.25 and 0.50 (easy adjustment). My sis ended up doing my face since she thought I couldn't keep the pen at a 90-degree angle to my face (prevent dragging). I was a bit tender for about a day or two after treatment, but my sis ended up using the A9 on the back of her hands and thought that it was very gentle compared to a derma roller, so she'll try it without numbing cream next time. It's been almost a week and while my sister hasn't noticed a change to her complexion, my cheeks are a little softer and I've had a couple of little micro acne pop up (nothing big enough to treat, and they went away in about a day), so it seems my dry mid-40s skin is producing a bit more oil than before. We're both looking forward to trying this again, using a deeper needle depth, since my skin didn't pinken like it does in instructional videos. Oh yes, since there were 6 cartridges included in the package, it's nice knowing that I don't need to immediately purchase refills. Best of all, we have another excuse to get together!