In addition to simple healing, Claire has been shown to regenerate at least small extremities. In the second-season episode "Lizards", she experiments with the limits of her powers, cutting off a toe. A new toe rapidly grows into place. When her blood is injected into others, they are also healed, even if they were dead for a while, with no apparent ill-effects. In the graphic novel "Resistance", dark future-Claire is able to regenerate her entire right arm after detonating a grenade during a terrorist raid while working as an HLS agent.