Probably the Hulk, Marvel Comics. He has shown over time to have an even faster healing factor than Wolverine of the X-Men.
He has been shown to grow new organs with in seconds. And even heal to the point of coming back from the dead.
Aladdin is a cartoon character, not a superhero.
Commonly accepted first superhero is 'Mandrake The Magician'(1934) by Lee Falk. And the second superhero is 'Phantom'(1936) by Lee Falk. He was the first superhero to wear a costume.
The prefix in "superhero" is "super." The term "super" generally means above, beyond, or greater than, indicating that a superhero possesses extraordinary abilities or qualities compared to a regular hero.
The superhero superman is who I think says up up and away but I am not positive
The cast of Superhero Divorce - 2006 includes: Alexandria Reynolds
the flash
the flash
The "fastest healing" part of your body is debatable, but may well be the inside of your mouth. In the normal act of eating lunch, you scrape thousands of cells away from the inside of your cheeks. By suppertime, almost all of those cells have been replaced.
Most of the Hand Bones can heal the fastest.
cheetah
The first is the tongue.
I'm not sure it is the fastest healing part but I am sure they mean just the mucous membranes lining the mouth, not the bones of the jaw.
Infants will have the fastest pulse rate.
The Mouth and that means the jaw if you did not know
The eye The first is the tongue
is the resting heart rate is fastest in adult life
The axolotl, a type of salamander, is often considered to have the fastest healing ability among animals. They have remarkable regenerative properties, able to regenerate entire limbs and even parts of their brain.