Hair transplants mend scars it seems, as detailed in a study at Imperial College London
Dr Rogers and other experienced hair transplant doctors already knew this from their observations over the years. Dr Rogers saw that placing hair follicules into previous strip or FUT scars, not only helped camouflaged the hairless scar, it seemed to help the scar soften and lose some of its’ “shiny reflection” compared to normal skin.
Examples of real world scar repair using transplanted hair follicles can be found here: https://www.westminsterclinic.co.uk/hair-transplant-photos/hair-transplant-repair/
https://www.imperial.ac.uk/news/242531/scars-mended-using-transplanted-hair-follicles/