Invulnerability.

Bullets bounce. But not everything does.

Superman is very hard to hurt, but he isn't truly invulnerable. His solar-powered Kryptonian cells make him bullet-proof, yet kryptonite, magic, red sunlight and equally powerful foes can injure or kill him. Doomsday killed him in Superman (vol. 2) #75 (January 1993), and Superman (2025) shows him bleeding before he heals in sunlight.

Read in depth All powers

Updated 6 November 2026 · 7 sources

Extreme close-up of a calm, wide-open eye with a steel-blue iris, lit warm from one side

Scroll to fire

Fired. Flattened. Dropped.

Point-blank, at the eye. The bullet loses. Kryptonite, magic and a red sun are another story.

Get the highlights.

First seen

Action Comics #1.

1938

In depth

The full story.

Superman is the Man of Steel, but steel can still be dented. This page explains how his toughness works, what gets through it and the famous times it failed.

How does Superman’s invulnerability work?

Superman’s invulnerability comes from dense Kryptonian cells powered by Earth’s yellow sun. In post-Crisis comics, a bio-electric aura close to his skin adds a layer of protection that also covers anything skin-tight, which is why the suit survives but a loose cape can tear. The aura was introduced in John Byrne’s post-Crisis reboot (1986). Because it runs on stored sunlight, he also heals fast, fastest in direct sun.

What can hurt Superman?

Superman’s toughness has clear limits. These can all injure him:

Threat	Why it works
Green kryptonite	Its radiation weakens and can kill him
Magic	His invulnerability gives no protection against it
Red sunlight	Removes his powers entirely
Raw force from equals	Doomsday and Darkseid can hit hard enough
Solar depletion	His defences fade as stored sunlight runs out (see Kryptonian biology)

In short, Superman is bullet-proof in every era, but not proof against everything.

Has Superman ever died?

Yes. Doomsday killed Superman in Superman (vol. 2) #75 (January 1993), the climax of The Death of Superman. He came back in “Reign of the Supermen” (1993), helped by the Eradicator. Read the story in order in our comics reading order.

When the sun goes out

In The Final Night (1996), a Sun-Eater dims the sun and Superman’s powers, his invulnerability included, fade away. They don’t fully return until Superman Forever (1998). It’s the clearest proof that his toughness depends on sunlight.

Invulnerability on screen

Superman (2025) is unusual for showing Superman hurt and bleeding, then healed by robots in a sunlight chamber at the Fortress of Solitude after Krypto drags him there. It led to a big fan question, “Is the new Superman weak?”, which we answer on super-strength. For every power, see the full list of Superman’s powers.

Era by era.

The same Superman, rewritten for every generation.

Golden Age (1938–1956)

Bullet-proof but not bomb-proof: in Action Comics #1 (1938), nothing less than a bursting shell could pierce his skin.

Silver Age (1956–1970)

Close to total invulnerability, matching the near-limitless strength of the era.

Post-Crisis (1986–2011)

Toned down after John Byrne's 1986 reboot, so Superman can bleed against strong enough foes. A skin-tight bio-electric aura protects him and his suit. Doomsday kills him in 1993.

Rebirth and today (2016–)

Very high, varying by writer, with solar depletion still able to wear him down.

Film: Superman (2025)

David Corenswet's Superman is hurt and bleeds more than once, then heals in a sunlight chamber at the Fortress of Solitude.

Questions.

Can Superman bleed?

Yes. Since John Byrne's 1986 reboot made Superman less powerful, he can bleed when hit hard enough by foes such as Doomsday or Darkseid, or when weakened by kryptonite, magic or a red sun. Superman (2025) made a point of showing him bleeding, then healing quickly in sunlight.

Can Superman die?

Yes. He famously died fighting Doomsday in Superman (vol. 2) #75, on sale 18 November 1992. The pair killed each other. He returned in 'Reign of the Supermen' (1993), revived with help from Kryptonian technology. Other stories show him dying from kryptonite or magic.

Why doesn't Superman's suit get destroyed?

In post-Crisis comics, Superman's body gives off a skin-tight bio-electric aura that also protects anything worn close to his skin. That's why his suit survives explosions while a loose cape can still tear. Earlier comics simply didn't explain it.

Is Superman bullet-proof?

Yes, in every era. Even in Action Comics #1 (1938), only a bursting artillery shell could pierce Superman's skin. Ordinary bullets bounce off him in comics, films and TV alike.