Transplanted hairs are generally permanent because they are taken from donor areas genetically resistant to hair loss, usually the back or sides of the scalp. Once implanted, these hairs continue to grow naturally for a lifetime. While natural aging may cause some gradual thinning over decades, the transplanted follicles largely retain their resistance to balding. With modern techniques like UFME and DSHI, graft survival rates are very high, ensuring long-lasting density and natural appearance. Following aftercare instructions and maintaining scalp health further enhances the durability and growth of transplanted hair.