Your NeoGraft eyebrow transplant may seem to work immediately because the grafts are visible when inserted in their new position. However, the grafts naturally shed three to four weeks after the transplant. This is a normal part of the healing process that is related to "shock" as the transplanted follicles establish blood supply. From that point, you can expect your healthy new eyebrows to grow back in over the course of six to 12 months.