History Main / FantasticMedicinalBodilyProduct

* In one issue of the ''ComicBook/{{Futurama}}'' comic book, Fry's cold infects the citizens of New New York, and once a person gets better they cough up a gelatinous mass that comes together to create a giant BlobMonster. Leela becomes afflicted too, but after her illness goes away, which included stripping naked and living with a pack of squirrels for a few days, she shows off a giant white blood cell on a leash, and Professor Farnsworth deduces that her mutated immune system is what created the large white cell, and they go to the sewers to infect the mutants. When they spit out their giant white cells, the two blobs meet, and destroy each other, saving the city.
* ''ComicBook/JudgeDredd'' has a peaceful and harmless intelligent alien race called Stookies -- who just happen to have glands in their bodies that make humans appear younger when they eat them. Since the glands can only be harvested by killing the Stookie, this is desperately unethical and immoral, even by Dredd's CrapsackWorld standards. However, due to FantasticRacism, it's only a ten-year sentence instead of fifteen to life for murder as alien lives are worth less than humans'.
* ''Franchise/MarvelUniverse'':
** ''ComicBook/TheIncredibleHulk'': In an issue from the early 1990s, Jim Wilson, a former teen sidekick of the Hulk, asks him for a transfusion because he's dying of AIDS and thinks that the Hulk's irradiated blood makes him immune to HIV and will cure him. [[ReedRichardsIsUseless Hulk refuses]], worrying that a blood transfusion might also [[SuperhumanTransfusion turn Jim into a gamma mutate]], much like it made Bruce Banner's cousin Jennifer into the ComicBook/SheHulk.
** ''ComicBook/XForceMilliganAndAllred'': At one point the team is deployed to Central America to kidnap a boy whose mutant powers make him a living pharmacy. Mr. Sensitive revolts against the team's financial backers after learning that they intended to harvest the kid's organs and bodily fluids to make new drugs.

*** The horns of muud suuds, a species of hulking HornedHumanoid beast native to Gyr Abania, can be ground into a powder and boiled in water to produce a flavorful, nutritious, and energizing broth with properties akin to coffee thanks to a recipe from the Near East. Meanwhile, the tallow of a muud suud has an intensely unpleasant and hard-to-wash out scent akin to chocobo dung, which Ala Mhigan scouts use to keep man-eating Qiqirn and other beasts away via SensoryOverload.

* ''WesternAnimation/AdventureTime'': In "[[Recap/AdventureTimeS6E2EscapeFromTheCitadel Escape from the Citadel]]", the blood from the Guardians of the Citadel can not only heal wounds, but also regrow flesh and muscles -- not missing limbs, though. [[spoiler:This can extend to an entire skeleton, as [[OurLichesAreDifferent the Lich]] [[ReviveKillsZombie is unfortunate enough to experience]].]]

* Vampire bat saliva contains ''anti''coagulants, so that the bats' prey bleed longer and they can lap up more blood per feeding. The anticoagulants have been investigated for treating stroke patients, but they do work any better than standard treatment with drugs that are easier to get.

* Medical insulin is now human-analog insulin produced by engineered bacteria. But it was originally isolated from the pancreases of cows and other animals.
* Early versions of hormone replacement therapy used things like testosterone extracted from bull testicles and estrogens from pregnant mares' urine (the latter marketed as "Premarin"). Now these are also more commonly synthesized in a laboratory.

* Human lungs secrete pulmonary surfactant to keep all the little air-exchange sacs from sticking closed. If you are not producing enough on your own; you may be treated to sprays of replacement surfactant down your throat. It's produced by extracting the surfactant from cow, pig, or sheep lungs. Usually, this just involves getting the overstock lungs from a slaughterhouse and chopping them up very fine.

* Medical insulin is now usually human-analog insulin produced by engineered bacteria. But it was originally isolated from the pancreases of cows and other animals.
* Hormone replacement therapy originally used things like testosterone extracted from bull testicles and estrogens from the pregnant mares' urine (the latter marketed as "Premarin"). Now these are also more commonly synthesized in a laboratory.

* In traditional Chinese medicine, animal parts and fluids are believed to cure various ailments. However, there's very little scientific evidence to suggest any of it actually works better than a placebo, and unfortunately, it also puts a high bounty on several endangered species. This has particularly had a negative impact on Chinese paleontology since local dinosaur fossils, which are often particularly well-preserved, were held to be the bones of dragons and ground into fine powder for the same medicinal purposes.

A creature, or an entire species, possesses remarkable healing abilities due to a particular bodily product. Usually the product is a fluid, likely saliva or [[ThePowerOfBlood blood.]] In various media, for example, vampire saliva is a natural coagulant and helps the puncture wounds close (incidentally making it a handy tool for maintaining TheMasquerade). However, it could be any other bodily product, such as urine or bone. The medicinal properties of the product can also range from healing wounds to curing illnesses to bestowing invincibility. Very often, the healing factor only works on other species, not their own, though this is not a strict requirement for the trope.

* ''Manga/SamuraiDeeperKyo'': Demon Eyes Kyou at one point uses his own blood to [[spoiler:bring a dying Kyoshiro back to life]] just out of spite. May also count as a case of NewPowersAsThePlotDemands.
* ''Manga/SazanEyes'': {{Invoked|Trope}} by the vampire-like Chui, who seems to firmly believe that drinking the blood of Pai, the last Sanzhiyan (Triclop) will make him immortal. However, it's implied by Parvati that this is a mere rumor and not an actual fact.

* In one issue of the ''ComicBook/{{Futurama}}'' comic book, Fry's cold infects the citizens of New New York, and once a person gets better they cough up a gelatinous mass that comes together to create a giant BlobMonster. Leela becomes afflicted too, but after her illness goes away, which included stripping naked and living with a pack of squirrels for a few days, she shows off a giant white blood cell on a leash, and Professor Farnsworth deduces that her mutated immune system is what created the large white cell, and they go to the sewers to infect the mutants. When they spit out their giant white cells, the two blobs meet, and destroy each other, saving the city.

* ''Fanfic/SongsOfTheSpheres'': Besides the standard healing body parts available to TheMultiverse -- your unicorn horns, your dragon livers, your [[VideoGame/FinalFantasy phoenix down]] -- eventually [[spoiler:Corona Shimmer]] comes up with a solution involving her own blood. [[spoiler:It bestows ''immortality''.]]

* ''Film/EdgeOfTomorrow'' If the alien's blood gets on you while you're dying it will bring you back to life and send you back in time.

* ''Literature/TheSnowQueenSeries'': The blood of the mers, a creature native to the planet Tiamat, is harvested to produce the "water of life", an ImmortalityInducer. The mers are in danger of being hunted to extinction because of this.

* In the Russian folk tale about Yeruslan Lazarevich, one of the hero's adventures is about curing his family who were blinded (either by a villain or due to sitting too long in a dark dungeon where said villain threw them). The cure required is the bile of a certain evil king.
* In the medieval German epic ''Literature/{{Nibelungenlied}}'', the hero Siegfried becomes invulnerable by bathing in a dragon's blood.

* In a folk tale from Southern Italy, the protagonist is an enchanted woman who lives in a rosemary plant (AWizardDidIt) and falls in love with the Prince who buys the rosemary. However, when the Prince's jealous sisters find her and give her a beating, she falls ill and the rosemary wilts. The gardener responsible flees the palace and, in the forest, overhears the discussion a couple of Dragons are having about the rosemary maiden, and one of them confess that the only remedy to save her is a mixture made from the blood from his throat and grease from the other dragon's hide. As soon as the two fall asleep, the gardener kills them, recovers the blood and grease and use it to heal the rosemary plant and save the girl.

* ''Franchise/{{Pokemon}}''

** The tears of the Fosh ex-Jedi Vergere are used to make a medication to stop the progression of Mara Jade Skywalker's spore illness. They're dangerous to her unborn son, though, and she has to stop taking them after getting pregnant.

* In ''Manga/{{Bleach}}'', Nel's saliva/drool is capable of healing people from near death.
* In ''Manga/BlueRamun'', the [[ThePowerOfBlood blood]] of members of the Blue Ramun tribe can cure nearly all diseases, neutralize most poisons, and accelerate the healing of wounds. The healing powers inherent in the Blue People are explicitly stated to be one of the most potent magical forces in the entirety of the [[LowFantasy low-magic setting]] -- which is why the Garicalege traffics in [[HumanResources stolen blood]] of the Blue Ramun tribe, and why [[spoiler:Dr. Zai murdered his fellow Blue tribe members and attempted to craft medicine from their hearts]].
* In ''Manga/MissKobayashisDragonMaid'', Tohru claims that [[OurDragonsAreDifferent dragon]] saliva has healing properties ([[MundaneUtility on top of being able to wash delicate clothing]]), but Ilulu says that she's just looking for an excuse to lick Kobayashi.
* In ''Anime/NeonGenesisEvangelion'', the LCL that sustains life within the entry plug (that is described as being identical to amniotic fluid) is the bodily fluid of Lilith, the being that spawned all of humanity.
* In ''Manga/{{Trash}}'', the blood of Hiroshi gives those treated with it a HealingFactor [[spoiler:but sends people who use it too much into a berserker state in which they can no longer tell friend from foe, which happens to Soo-in and ultimately Francesca herself]].
* {{Invoked|Trope}} by the vampire-like Chui in ''Manga/SazanEyes'', who seems to firmly believe that drinking the blood of Pai, the last Sanzhiyan (Triclop) will make him immortal. However, it's implied by Parvati that this is a mere rumor and not an actual fact.
* In a {{filler}} arc of ''Manga/OnePiece'', the main antagonist is after a rare and old Millenium Dragon, whose bones are said to grant immortality to all those who consume them. Later on in the arc, his [[TheDragon right hand man]] betrays him to go after the bones himself.
* In ''Manga/SamuraiDeeperKyo'', Demon Eyes Kyou at one point uses his own blood to [[spoiler:bring a dying Kyoshiro back to life]] just out of spite. May also count as a case of NewPowersAsThePlotDemands.

* In the ''AudioPlay/BigFinishDoctorWho'' audio play ''The Bride of Peladon'', the Doctor uses his own blood as an antidote, because he'd been attacked and injured badly enough to activate his souped-up Time Lord immune system, releasing special platelets to heal his injuries instead of having to regenerate, effectively turning his blood (temporarily) into a panacea.

* In ''ComicBook/BratPack'', True-Man's blood is capable of curing HIV and bestowing a healing factor.

* Creator/MarvelComics:

* ''Fanfic/AThingOfVikings'' takes the ''WesternAnimation/HowToTrainYourDragon'' example and runs with it; many of the dragons produce substances (mostly venoms, but some tears and saliva) of medicinal value, including anesthetics, heart medications, paralytics, sterilizing agents, and even [[FantasyContraception abortifacients]].

* The ''Fanfic/{{Lysenne}}'' series takes the healing saliva of the vampires of ''Literature/TheSagaOfDarrenShan'' and expands on it, like it does with most of that series' vampire worldbuilding. [[VideoGame/IdentityV Luca Balsa]], the vampire "mad" scientist, has experimented with it and analyzed some of what it does and how.
* In ''Fanfic/SongsOfTheSpheres'', not only are the standard healing body parts available to TheMultiverse -- your unicorn horns, your dragon livers, your [[VideoGame/FinalFantasy phoenix down]] -- but eventually [[spoiler:Corona Shimmer]] comes up with a solution involving her own blood. [[spoiler:It bestows ''immortality''.]]

* In ''Film/AliceInWonderland2010'', the Bandersnatch's saliva is one of the few things that can heal the wounds left by its poison claws.

* In ''Literature/IllegalAliens'', there is a race of sapient trees whose leaves, seeds, and other body parts have remarkable healing properties when used as medicine by any other race in the galaxy. On top of that, the trees themselves are doctors.

* In the ''Literature/NightshadeTrilogy'', the blood of the Guardians ([[VoluntaryShapeshifting wolf shapeshifters]]) can heal whoever drinks it, but only if it is offered by said Guardian as a gift.
* In the ''Literature/PitDragonChronicles'', [[OurDragonsAreDifferent dragon]] saliva is healing for human wounds and human saliva is healing for dragon wounds. In a {{subver|tedTrope}}sion, dragon blood is acidic and burns human flesh.
* In ''Literature/TheSagaOfDarrenShan'', vampires have healing spit. In the prequels, a vampire even runs makeshift hospitals for humans using his saliva and that of two other vampires.

* In the ''Franchise/StarWarsExpandedUniverse'':
** Both bacta and kolto -- potent healing fluids central to the galaxy's medical industries -- are derived from secretions of specific species.

* In ''Literature/TheSnowQueenSeries'', the blood of the mers, a creature native to the planet Tiamat, is harvested to produce the "water of life", an ImmortalityInducer. The mers are in danger of being hunted to extinction because of this.
* In ''Stranger Station'' by Creator/DamonKnight, an alien gives a liquid from its body that cures disease on Earth. It turns out that a human is necessary adjacent to the process, because [[HumansAreUgly humans are repulsive to the aliens]], and the elixir is actually sweat produced out of their agony enduring our presence.

** In "If Looks Could Kill", a vampire doctor used injections of her own blood as a "miracle youth-restoring treatment" marketed to rich elderly women. Unfortunately the users suffer from homicidal outbursts, and RapidAging if the treatments stop.
** "Fever" had a undeadly virus going about the vampire community. Originally contracted by sucking the blood of a lab rat which had been used to test an HIV vaccine, it can only be cured by sucking the blood of an AIDS victim.
* In ''Series/{{Heroes}}'', Claire's blood turns out to be a miracle cure.

** In "[[Recap/StarTrekEnterpriseS02E013Dawn Dawn]]", when Trip is stranded on a hostile planet with an Arkonian pilot, he discovers that Arkonian saliva can heal wounds rapidly.

* In ''Series/TheVampireDiaries'', a human who drinks vampire blood will temporarily gain a slightly weaker version of the HealingFactor that vampires have, allowing said human to recover from otherwise fatal injuries. Similarly, the blood of the Original hybrid, Klaus, can be used to heal a normal vampire from a werewolf bite, which is typically fatal to non-Original vampires.

* ''TabletopGame/TheUnofficialHollowKnightRPG'': Bugs with the Blood of the Ancients Trait have blood with miraculous healing properties, allowing the bug to sacrifice one Heart in order to let another bug drink their blood, giving the drinker one Lifeblood Heart. The Primal Ichor trait upgrades this so that it instead grants the drinker two Lifeblood Hearts, heals attribute damage, and clears status conditions and DamageOverTime effects.

* In ''VideoGame/Disgaea4APromiseUnforgotten'', [[OurAngelsAreDifferent angel]] blood is capable of curing any disease.

* ''VideoGame/FateGrandOrder'':
** The saliva of Oryou (Ryoma's dragon steed) can heal people.
** Asclepius mentions that the blood from the right side of the Gorgon for his resurrection potion and Noble Phantasm, Resurrection Fraught Hades. As such, she gets ''excited'' should you have summoned Gorgon, as it means he'll be able to recreate his most prized invention.

* ''VideoGame/TheLegendOfZeldaBreathOfTheWild'':
** Cooking certain animals together with monster parts creates elixirs with various effects.
** [[{{Sandworm}} Molduga]] guts are said to possess healing properties, and one sidequest has you retrieve them to give to a Gerudo woman who needs them to help her sick husband.
* ''VideoGame/{{Bloodborne}}'': Old Blood, found within the Pthumerian Catacombs, can heal any injury or disease and lead to the city of Yharnam become famed for healing and medicine. The player character is a pilgrim visiting the city to be cured of an unknown illness. Not only that, the blood echoes stay inside the drinker so that their blood also provides healing. When the game begins, blood drinking is so common that Yharnam residents drink blood instead of wine. Sadly, blood echoes can also turn people into beasts on the Night of the Hunt, an astronomic event, requiring the Hunters to purge them.

* In ''VideoGame/{{Subnautica}}'', the mysterious enzyme needed to cure [[spoiler: the Kharaa plague]] comes from the gastric fluids of [[spoiler:the Sea Emperor Leviathan]].
* ''VideoGame/HollowKnight'' has Lifeblood Seeds, tiny creatures filled with a bright blue liquid called Lifeblood. Lifeblood invigorates the body and makes the drinker feel stronger, which mechanically translates to temporary bonus [[HitPoints Masks]] when you kill one.

* ''Webcomic/TheOrderOfTheStick'': [[AllTrollsAreDifferent Troll]] blood retains its HealingFactor when it's applied to a wound, though it creates patches of troll flesh where it heals. As trolls are generally disregarded as [[WhatMeasureIsANonHuman monsters fit only for killing]], this property isn't widely known.
* ''Webcomic/ZombieRanch'', in which TheUndead are factory-farmed for the wonder-drug compounds in their blood.

* In the AudioPlay/BigFinishDoctorWho audio play ''The Bride of Peladon'', the Doctor uses his own blood as an antidote, because he'd been attacked and injured badly enough to activate his souped-up Time Lord immune system, releasing special platelets to heal his injuries instead of having to regenerate, effectively turning his blood (temporarily) into a panacea.

* ''Series/ForeverKnight''

* ''Series/TheImmortal'': A man discovers that his blood not only makes him immortal but can cure diseases in any person it's transfused into.

** ''ComicBook/XForce'': In the Milligan and Allred run, the team was once deployed to Central America to kidnap a boy whose mutant powers made him a living pharmacy. Mr. Sensitive revolted against the team's financial backers after learning that they intended to harvest the kid's organs and bodily fluids to make new drugs.

* ''Series/ForeverKnight'': "Fever" had a undeadly virus going about the vampire community. Originally contracted by sucking the blood of a lab rat which had been used to test an HIV vaccine, it can only be cured by sucking the blood of an AIDS victim.

Compare SwissArmyTears and HealingHands for other body products/parts that heal. For general examples of profiting from captive monsters, see MainliningTheMonster. If the product in question is a ''waste'' product or a secretion, see SolidGoldPoop. If the product is repugnant, such as snot or pee, it could be used in a RevoltingRescue. See also CraftedFromAnimals.

* In ''VideoGame/IllusionOfGaia'', unspecified body fluids from the Sand Fanger are thought to cure diseases. Lance uses some to cure his father's memory loss.
* ''VideoGame/TheLegendOfZeldaBreathOfTheWild'': Cooking certain animals together with monster parts creates elixirs with various effects. Also, there's a sidequest to harvest some [[{{Sandworm}} Molduga]] guts for their healing properties.

* ''VideoGame/FateGrandOrder'': The saliva of Oryou (Ryoma's dragon steed) can heal people.

* ''Manga/BlackBird'':

** [[EverythingsBetterWithCows Miltank]] produces and is farmed for its Moomoo Milk, which heals Pokemon by 100 HP. Its original [[SecretArt signature move]] (which later was learnable by the Skiddo line) involves the Pokemon drinking its own milk to heal by half their maximum HP.

Compare SwissArmyTears and HealingHands for other body products/parts that heal. For general examples of profiting from captive monsters, see MainliningTheMonster. If the product in question is a ''waste'' product or a secretion, see SolidGoldPoop. See also CraftedFromAnimals.