Jeff had a birth defect. Hair did not grow in a spot on the side of his head. When his hair was fuller it was easier to cover up. When his hair started to get thinner it became difficult to hide. Extreme density which is a result of the MaxHarvestâ„¢ procedure was crucial in order to cover such a big area of hair loss. With Jeff's birth defect there was enough blood supply beneath the area so his hair grew in successfully.