I use this as part of my hair-regrowth protocol along with minoxidil/rogaine and I've had incredible results! I have hundreds of baby hairs growing in around my hairline and temples after just a couple months of treatment. I expect more gains with continued use. This is definitely the nicest derma roller I've been able to use so far. I like that it comes with a little storage container, because I tend to throw these things loose into a drawer which always ends up bending the pins. Overall a solid choice if you're in the market for a roller!