The potion enhances Kraven's sight, hearing, and smell to superhuman levels, adding to his already impressive tracking skills. He can see farther, and with much greater clarity, than a normal human. His hearing is similarly enhanced, enabling him to detect sounds which an ordinary human cannot, or sounds that a normal human could detect, but at much greater distances. Kraven can use his sense of smell to track a target by scent, much as some animals do, even if the scent has been somewhat eroded by natural factors.