Review on Reliable Refillable Roller Bottles for Perfumes and Essential Oils by Jamie Prezant

I've had no problems with these rollerball pens. I started using it in baby essential oil blends. It's small and perfect for those blends you don't use often. or even gifts for other people to try, but they are small! I apply fluocinol steroid oil, which I used to just apply to skin with a cotton swab, but the roller was a lot easier because it only skips one step. I only put it on lightly because I don't want much from children if I have to. I would recommend them and buy them again