Creating a normal frontal temporal angle is the third component. Rounding off at a frontal temporal angle will lead to an unnatural appearance. Adult hairlines usually include an acute frontal temporal angle, which becomes more prominent as the individual ages. Also, rounding off of this angle in hair transplants can lead to a bizarre appearance, as the original hairline recedes, leaving an isolated tuft of transplanted hair in the temporal area, surrounded by a non hair-bearing bald zone. Irregularity and asymmetry are the fourth components.