FUSE (in-vivo follicular unit separation extraction) is a knife and stitch free hair restoration method. It is safe, minimally invasive, virtually non-scarring technique of extracting single follicular units (FU).

It involves separation of the graft bearing skin till the level of mid dermis with tiny but sharp micro punches, followed by the separation of the FU by careful microscope/ magnifier aided dissection (under direct vision) from its remaining dermal attachments, before gently sliding it out of its location for grafting into the recipient bald area.