This is just wrong. If you aren't bleeding you my aswell be using a .5mm roller. Use a 1.5mm, apply light pressure and see how much of those needles are getting penetration. 1/4th? If I am pressing hard enough to get even half the 1.5mm needles into the scalp, bleeding occurs.
People have been using .5mm for a long time and have no acheived results like in the newest study. So which is it?
People have been using .5mm for a long time and have no acheived results like in the newest study. So which is it?
Comment