I have used this twice. I bought this to use once a month but since have...

I have used this twice. I bought this to use once a month but since have decided to do once a week. The first time I used this pen I was a little scared to be honest. It wasn't too bad painful but yes, it does hurt. I will say I noticed a big improvement in my skin after just one use and after the healing process. Enough of an improvement it made me excited to use it again. The second time I used this pen I used some topical anesthetic prior. I was able to move the pen faster however, there was some significant drag when using it. I have not used another derma pen system for comparison but I'm pretty sure drag is not a good thing. Also, I bought head refills from Dermstore. BUT these are not compatible with this pen. So don't order the refills. Because of the consistent dragging I'm considering returning this product to purchase a different system, if possible.