Hair transplantation is a surgical procedure to restore hair loss on the scalp and other areas like the beard, mustache, sideburns, eyebrows, and eyelashes. It’s used to treat various types of progressive alopecia (hair loss) and to conceal scars, wounds, burns, and the outcomes of unsuccessful plastic surgeries on the face. If there’s enough donor material (one’s own hair; the body rejects transplanted hair from others), hair transplantation can be performed multiple times on the same person. Transplanted follicles start producing new hair within 2-3 months. The final results of hair transplantation are achieved after about a year and are permanent.