This depends on which technique you choose. Certain techniques proffer better outcomes than others. In the case of hairline design, this is true namely due to the source of donor hair. For soft, natural-looking hairline design I would recommend FUE hair transplant. FUE—follicular unit extraction—removes hair in individual follicular units as opposed to excising a strip of flesh from the mid-rear scalp. This method of singular unit excision typically creates less scarring in addition to opening up the pool of donor hair. Through advanced FUE with uGraft, hair can be extracted from non-traditional donor sites where the hair is of a finer caliber, more suited to a natural hairline. Such apt donor sites include the nape of the neck and the legs.
Web reference: http://www.dermhairclinic.com/fue-hair-transplant/