Microneedling with a bit of bleeding (photo)
https://healthell.blogspot.com/2021/02/microneedling-with-bit-of-bleeding-photo.html
That certainly produces a wound which will hopefully induce some hair growth. This is the point of doing it, to induce wounds and wound healing and maybe the hair will come along with it.
from BaldingBlog - Hair Loss Info https://ift.tt/2NriWtY
