In DHI, hair grafts are extracted individually from the donor area using a fine punch tool, with each graft containing one to four hairs. The grafts are carefully preserved in a special solution until implantation, while the medical team works in a controlled manner to protect donor density and ensure natural healing. Single-hair grafts are typically used to design the hairline, while multi-hair grafts help build overall density, with the total number of grafts planned in advance based on donor capacity, often between 2,000 and 3,500 grafts.