Healing factor

Someone with a Healing factor has the ability to recover from injuries at a superhuman rate. Characters with super speed possess this ability as well as other metahumans and aliens. Some characters have different levels of healing powers. Some can regenerate wounds at super speed, and others can even regenerate entire appendages. Vandal Savage could lose an entire arm, and it would simply grow back, thanks to his Immortality which gives him an incredible healing factor.