History Main / ImmortalityInducer

* The Grand Panacea from ''LightNovel/{{Baccano}}'' has this effect; anyone who drinks it ceases aging and [[GoodThingYouCanHeal almost immediately]] recovers from any injury (seriously, if they're burned the ash turns right back into flesh). The only way to "kill" an immortal is for another to [[IdentityAbsorption absorb]] them (which gives them their memories in the process). There's also lesser versions of it that grant invulnerability and the weakness to being absorbed but not immunity to aging.

* From the Wiki/SCPFoundation, there's [[http://scp-wiki.wikidot.com/scp-963 SCP-963;]] a talisman which, if you are killed while holding it, is imprinted with your soul. From then on, anyone else who touches the talisman has their personality overwritten with whoever is contained inside. It's actually possible to make multiple copies of yourself this way.

* The narrator in Xanadu by ''Music/{{Rush}}'' gains immortality after entering the Pleasure Dome, dining on the honeydew, and drinking the milk of paradise. He is ''not'' happy about it.

* The ''WesternAnimation/RickAndMorty'' episode "The Whirly-Dirly Conspiracy" takes place in a space resort covered in an immortality field. People just kill each other for fun and instantly heal from their injuries. The title "Whirly-Dirly" is a roller-coaster that briefly leaves the immortality field, allowing aliens to try and assassinate Rick, and the attempt to stop them causes the immortality field to be destroyed.

* In Myth/KingArthur, the scabbard of Excalibur is implied to be this. While it's not ''explicitly'' said to grant immortality, as long as Arthur had it in his possession he was effectively safe from ever being wounded or killed in battle. Some versions of the myth even go so far as to say that it could heal sickness or even slow/prevent his aging. Regardless of the exact specifics though, it was clear as long as he had it he wasn't in danger of dying, which was why it was stolen from him.

* In the ''WesternAnimation/XMen'' animated series, the secret to Apocalypse's immortality is the Lazarus Chamber, an ancient device located inside his pyramidal headquarters in Cairo. It allows him to rejuvenate himself every hundred or so years and restore his power to its prime.

* In ''Series/{{Forever}}'', while it's not entirely clear what caused Henry's ResurrectiveImmortality, it all started with him being shot by an 18th century pistol by a slave ship's captain (who, basically, shot his boss's son) while trying to protect a sick slave (it's later revealed that he was in the process of trying to free all the slaves on the ship). Much later, another immortal who calls himself Adam reveals his theory that the only way to stop the "curse" is to once again be killed by the same weapon that started it all. He gifts the same pistol to Henry to see if Henry has the guts to do it. Adam admits that, when he managed to re-acquire the same pugio (Roman dagger) that first killed him over 2000 years ago, he was unable bring himself to test his theory. [[spoiler:It doesn't work, although it may be because Adam is the one who pulled the trigger, not Henry]].

->'''Peter Quill''': Well, you may not be mortal, but me...\\
'''Ego''': No, Peter... death will remain a stranger to both of us, as long as the light burns within the planet.

This trope happens cases where a character is immortal through the agency of a physical object or substance or of some kind of ritual. How the object works can be very varied. It may be PoweredByAForsakenChild, thus invoking ImmortalityImmorality, or it could be powered by harmless TechnoBabble. In either form, it often takes the form of an ElixirOfLife.

* Humanity has been searching for the secret to immortality for thousands of years. For some reason they kept coming back to UsefulNotes/{{Mercury}} as a miracle serum. Historians partially attribute the fall of several Chinese dynasties to emperors drinking mercury, going crazy, dying young and leaving the throne to unprepared young boys, who grew up to drink mercury, etc.

* In ''WesternAnimation/AquaTeenHungerForce'', a talking doll ("Happy-Time Harry") who's a walking manifestation of seemingly inescapable mundane problems and vice turns out to be a DeathSeeker who'll just ''take'' it. As he starts leaning more and more on that, Master Shake decides that's what he ''wants,'' so he decides to do the ''opposite'', throw him off a cliff and turn him into a Film/{{Highlander}}. Which is, in addition to being a movie, not even how it worked in the movie, which even ''Harry'' points out, and when Master Shake is pressed for his reasoning, he just claims that he definitely remembers the movie had cliffs. (Going over the edge just injures him.)

** The local BazaarOfTheBizarre ''sells'' these in the form of Hesperidean Cider, of which a single drink will make you immortal. It's bloody expensive, though, to the point only three players have ever managed to buy it. Plus, it isn't that much help anyways unless you want to head for the surface (or the "no death from old age" part is what interests you), as within the Neath DeathIsCheap and you'll get back up soon afterwards.

*** The Pokemon Xerneas grants eternal life, too, but not when you catch it in a PokeBall. [[StupidityIsTheOnlyOption Guess what you do over the course of the game.]]

* The Twenty-seven True Runes in the Suikoden games will stop their bearers from aging.

* In ''Literature/TheTwelveKingdoms'', anyone can be made immortal if their name is written in a Register of Immortals by a government official. This is usually reserved for newly-selected officials, and the status can be removed just as easily. The lists are just bookkeeping for the gods, who do the actual inducing on the basis that governments are more stable if their members can keep working forever. By the same token, national rulers are also automatically granted immortality when chosen for the role by a Kirin, but since eternity as a ruler is [[WhoWantsToLiveForever very stressful]], they tend to fall after a lifetime or so.

* The Grand Panacea from ''LightNovel/{{Baccano}}'' has this effect; anyone who drinks it ceases aging and [[GoodThingYouCanHeal almost immediately]] recovers from any injury (seriously, if they're burned the ash turns right back into flesh). The only way to "kill" an immortal is for another to [[IdentityAbsorption absorb]] them (which gives them their memories in the process). There's also lesser versions of it that grant invulnerability and the weakness to being absorbed but not immunity to aging.
** According to the novels, Baccano immortals are actually immune to fire and acid, not just able to recover from it. Szilard's research has shown that their individual cells are completely indestructible and anything that involved breaking down things on a cellular level such as burning (or acid), won't actually do anything to them. The damage that fire/acid does to the outer portion of their cells is so small it regenerates instantly resulting in immortals that don't give off smoke while on fire since their cells don't even have time to turn into ash, and fires that will burn literally forever as long as they have enough heat/oxygen to keep the reaction going since the immortal's body provides unlimited fuel. That's not to say it doesn't hurt them, since their nerves can still sense the heat and register it as pain.

-->--''Film/GuardiansOfTheGalaxyVol2''

* ''Series/{{Ghosted}}'': The Cronos machine from in “The Machine”. Created as a combination of [[{{Magitek}} science and magic]], it takes people's [[ThePowerOfBlood blood]], absorbing their LifeEnergy in the process, so it can be transferred into the machine’s owner. This grants the owner {{immortality}}, [[SuperStrength superhuman strength]], and a HealingFactor so fast they’re practically invulnerable, whilst the victims [[RapidAging age to dust]].

* In Myth/IndianMythology, the nectar of Immortality called Amrita came from the buttery substance that both gods and devils made when they stirred the primal ocean.

* The ''VideoGame/{{Touhou}}'' series has the Hourai Elixir, which was literally created by distilling the concept of eternity into liquid form. It makes whoever drinks it immortal by removing the very concept of death from their being: they will never age, never grow sick, and will heal any injury, no matter how severe (even ''instantly'' in Kaguya's case, due to her other power). The closest one can get to defeating one is beating them down until the pain makes them not want to fight you anymore. Even if you could time-travel to before they drank the elixir and tried to kill them then, it ''still'' wouldn't work; death was removed from the ''entirety'' of their history. When some of the characters descend into the Underworld, two of the characters who've drunken the Elixir run into an invisible wall -- they're so cut off from death that they can't even ''voluntarily'' enter the land of the dead. Fortunately, only three (possibly four) people have consumed the Elixir, and not one of them is particularly interested in a fight to the death ([[CycleOfRevenge except between]] two [[RevengeBeforeReason of them]]). The Elixir remains in the immortal's body -- should someone be skilled enough to disable a Hourai immortal and eat his or her liver without cooking it, they will also be granted the effects of the Elixir.

* The Dog talisman in ''WesternAnimation/JackieChanAdventures'' gives someone immortality with youthful energy, [[ImmortalityHurts but (the baddies, at least) can still feel pain from blunt force trauma]]. Together with the Horse talisman, [[HealingFactor which provides the power to heal injuries]], they provide CompleteImmortality.

* The Dog talisman in ''WesternAnimation/JackieChanAdventures'' gives someone immortality with youthful energy, [[ImmortalityHurts but (the baddies, at least) can still feel pain from blunt force trauma]]. The Horse Talisman could probably provide FromASingleCell-type immortality, although its regenerative powers were never taken to that limit in the show. Together, they provide CompleteImmortality.

Contrast ArtifactOfDeath.

* ''VideoGame/TheTuringTest'': The extremophile found in Europa is in a symbiotic relationship with a virus that repairs the former's damaged DNA, which confers it a resistance to high levels of radiation. According to Soichi's writings, this also prevents the biological aging that is ultimately caused by DNA damage.