Semi-Immortality

The power not to age. Sub-power of Immortality.

Also Called

 * Agelessness
 * Aging Immunity
 * Biological Immortality
 * Eternal Youth
 * Timeless Body

Capabilities
Users of this ability never age, and as a result, they stay young forever or at least never suffer the ravages of aging. Because of this, the user will always be at their physical prime. The user will also be immune to aging abilities, such as Age Acceleration or Reversal.

Applications

 * Immunity to age-based powers.

Associations

 * Age Manipulation
 * Bionic Physiology
 * Decelerated Aging
 * Multiple Lives
 * Old Prime
 * Regenerative Healing Factor
 * Telomere Regeneration
 * Temporal Lock

Limitations

 * User is still vulnerable to everything else that would affect other beings, from disease to mortal wounds.
 * Some users will stop aging only after they reach a certain point.
 * Depending on what that point is, user may never reach adulthood.

Literature
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 * Slender Man (Creepy Pasta)
 * Hunters of Artemis (Percy Jackson Books)
 * Peter Pan (Peter Pan)
 * Sorcerers (Skulduggery Pleasant)
 * The Young Guardians (The Young Guardians)
 * Elves (Tolkien)
 * Dark One (The Wheel of Time)
 * Dragon Riders (Inheritance Cycle)

Video Games

 * Demigods (Asura's Wrath)
 * Chek Summoners (Breath of Fire IV)
 * Abbess
 * Dog (Fable II/III)
 * Gabriel Belmont/Alucard (Castlevania Lords of Shadows 2)
 * Trevor Belmont/Alucard (Castlevania Lords of Shadows 2)
 * Shelke the Transparent (Dirge of Cerberus)
 * Nyx (Fire Emblem Fates)
 * Ruby (Lunar: Eternal Blue)
 * Nall (Lunar: Silver Star Story)
 * Quan Chi (Mortal Kombat)
 * Shao Kahn (Mortal Kombat)
 * Alex Mercer (Prototype/Prototype 2)
 * James Heller (Prototype 2)
 * Elizabeth Greene (Prototype)
 * Aldra (Queen's Blade)
 * Albert Wesker (Resident Evil); After he is revived by the Prototype Virus his aging process seems to have stopped altogether.
 * Shadow the Hedgehog (Sonic the Hedgehog)
 * Judd (Splatoon)
 * Peter Pan (Valkyrie Crusade)
 * Anomalocaris (Valkyrie Crusade)
 * The Dryad (Terraria)

Comics

 * Thing (Marvel Comics)
 * Olympians (Marvel Comics)
 * Steven Rogers (Ultimate Marvel)

Mythology/Folklore

 * Vampires (Mythology)
 * Viking Deities (Norse Mythology)
 * Werewolves (Mythology)

Others
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 * Malachite (Channel Awesome - Suburban Knights)
 * Merlin (Stupid Mario Brothers)
 * Nox Decious (Stupid Mario Brothers)

Known Objects

 * Ring Of Winter (Forgotten Realms)