"And can I just ask, what's with the Make-Over of the Damned? I mean, the hair...!"You've just got a power boost. The reasons may vary, whether it's from going into Super Mode, your Superpowered Evil Side deciding to wake up, you finally got your hands on that MacGuffin you've been after, you Came Back Strong whatever. The point is, you're now capable of destroying the world three times over, and you can feel it. The first thing your friend says? "Dude, nice dye job!" Power Dyes Your Hair is Exactly What It Says on the Tin: a Power Makeover that applies exclusively to hair. The degree in which this happens can vary; on the one hand, a character may only have their hair change a few shades, especially if their hair's already light to begin with. Other times, a character may go straight from having black hair to blonde or white. Often, this is a good way for a character to maintain a Secret Identity, as the change isn't permanent. Bonus Points if Power Makes Your Hair Grow. May also result from Paint It Black, if the power surge isn't a positive thing for the heroes. Compare Locked into Strangeness, which is what happens when the color change is permanent. A subtrope of Kaleidoscope Hair, when the color change can be for any reason. An Anime Hair trope, obviously.
— Xander on Dark Willow, Buffy the Vampire Slayer
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Anime & Manga
- Dragon Ball Z:
- Super Saiyans are the Trope Codifier. A Super Saiyan's hair turns bright gold and his eyes turn green. At one point, Chi Chi lampshades this when she sees Gohan in this form for the first time and starts berating him for dyeing his hair.
- Broly's Legendary Super Saiyan turns his hair a mix of gold and green, although this may be a side-effect of his Restraining Bolt.
- The Super Saiyan God's hair turns red and a Super Saiyan God Super Saiyan's hair turns blue.
- In Darker Than Black: Gemini of the Meteor, Izanami, sort of formerly known as Yin, has fluorescent blue hair where once she had more standard bluish-white hair, because she is now an Apocalypse Maiden.
- In Tenchi Muyo!, when Kagato starts draining Ryoko's energy, his hair floofs with power.
- InuYasha: Inverted by Inuyasha. His hair is naturally snow white due to his status as a very powerful human-youkai hybrid. During the night of the new moon, his powers disappear, leaving him almost fully human. As his powers leave, his hair turns jet black. As his powers return with the rising sun, his hair transforms back to white again.
- The Devil Is a Part-Timer!: Emilia's hair turns white when she uses her "sacred power" abilities, which is basically Holy Magic. There doesn't seem to be much of difference between it and regular magic in the series however other than the name.
- In Busou Renkin Black Kakugane makes its user's hair green and dyed user's skin dark and makes its user a Walking Wasteland. The most notable are Victor and Kazuki
- Mahou Sensei Negima!:
- Negi Springfield has his hair turn white during his Magia Erebea.
- Mana Tatsumiya has her hair turn white when releasing her full power.
- In Sands of Destruction, Kyrie's hair goes from blond to red when he regains his memories of being the Destruct Code and goes into super-awesome-killer mode.
- And, of course, it goes back to his normal blond afterward.
- Lyrical Nanoha:
- When Belkan knights enter Unison with their Device, their hair usually changes color to a much lighter shade. Unison with Reinforce Eins or Zwei usually results in white or pale blue hair tint, while Agito's Unison turns Zest's hair yellow and Signum's pale purple.
- In Magical Girl Lyrical Nanoha ViVid, Victoria's hair will glow blue when she's using her powerful lightning spells.
- In Magical Record Lyrical Nanoha Force, Thoma's hair becomes white when accessing his Black Knight form via Reacting with Lily (a process that is so suspiciously similar to a Unison that Reinforce Zwei is actually able to coach the two of them in its use).
- In Shamanic Princess, when Tiara goes into her demon form, her hair goes from fiery red to blood-red.
- More subtle example — in Yu-Gi-Oh!, when Yugi switches to Yami Yugi, lightning bolts of blonde hair extend upwards from his bangs that aren't there as regular Yugi.
- In Rosario + Vampire, Moka gains silver hair when she takes her rosario off and gains her true vampire power.
- Tokyo Mew Mew:
- In the anime version, Ichigo's Transformation Sequence, in addition to turning her into a Cat Girl and giving her nice Magical Girl clothes, changes her hair from dark red to pink, and the rest of the girls also have their hair colors changed to brighter shades.
- Another example, present in both the anime and the manga, is dark-haired Aoyama Masaya transforming into the blonde Mysterious Protector Blue Knight, which is slightly odd, because as the Big Bad Deep Blue, he has black hair again; though this one has an excuse of being a part of the Red Herring designed to conceal the character's identity from the audience, not just from the characters.
- In Ah! My Goddess, the goddess Belldandy wears special earrings to contain her power. When she takes them off, her hair goes from blonde to silver.
- Tokyo Ghoul: After Kaneki's torture, his hair turns white coinciding directly with when he Took a Level in Badass
- Ichigo's hair turns black upon activating the Final Getsuga Tenshou.
- Ginjou's hair turns white upon activating bankai.
- Rukia's hair turns white upon activating bankai.
- Slayers: Lina's Giga Slave puts a severe drain on her energy whenever she uses it and thus leaves her red hair a platinum blonde that is so light it's almost silver for a day or so after she casts it. Not to mention that time it glowed golden because the spell involved channelling the Lord of Nightmares, who replaced her soul when it backfired.
- This tends to happen in the Pretty Cure franchise.
- In addition to getting absurd hairstyles, Pretty Cures' hair get a lot brighter in color — a great example is in HeartCatch Pretty Cure!.
- This, of course, is averted in the first series, when the eye color of the main characters change and it's implied that anyone can recognize them if they take a good look. Of course, you can count on one hand the number of times where they battled in the presence of someone, since every time the villains appear, everyone conveniently faints, and the few times someone awaken in the middle of the fight, they never get to see their faces.
- Go! Princess Pretty Cure invokes this during the transformation sequence with everyone's hair becoming lighter & adding ombre elements as the final stage of their transformation/when placing their crowns on their heads.
- The most extreme cases have completely color changes. Setsuna (dark purple) -> Cure Passion (rose), Hibiki (orange-brown) -> Cure Melody (pink)(pictured), and Mana (magenta) -> Cure Heart (blond), Haruka (orange-brown) -> Cure Flora (Blond and pink)
- Variation: the wings of "Charcoal Feathers" in Haibane Renmei slowly turn from light charcoal grey to inky black if they become "sin bound" by doing poorly in their Redemption Quest.
- In Mushishi, one Victim of the Week's hair is green because she's merging with a mobile, living swamp, though it turns back to normal once She Gets Better.
- In Monochrome Factor, whenever Akira becomes a Shin, his hair turns black.
- Akane in Kämpfer turns into a Fiery Redhead in her Kampfer form, Shizuku's normally black hair turns white on the underside and Mikoto's hair turns white.
- In Princess Resurrection, Hiro's hair turns white whenever he senses Hime in danger.
- In Umi Monogatari, Kanon's hair becomes lighter and has a different shape when transformed.
- In Shugo Chara!'s anime, all of the ? Character Changes has this happen. With some Red Eyes, Take Warning added.
- In Witchblade, Masane's brown hair turns red when she activates the Witchblade and after being corrupted with her powers, Masane's hair changes from red to white.
- In Naruto, anyone who becomes the ten-tails jinchuriki has their hair bleached pure white.
- In Fairy Tail, Wendy Marvell, whose hair is normally blue, has pink hair when she enters Dragon Force.
- Jojos Bizarre Adventure: Vento Aureo, after Giorno Giovanna gains his stand, his hair goes from black to blonde, permanently.
- Yuki Yuna Is a Hero: When in Hero form the usually redheaded Yuna gains pink hair.
- In Marvel Comics Generic Comic Book, The Hero's hair turned white when he got his superpowers.
- Doctor Strange briefly turned into a long-haired blond after absorbing the power of one of Shuma-Gorath's generals. He had such an excess of power that he not only obliterated Shuma, he had to 'decompress' through a dozen dimensions, shedding power as he went, just to reach the level where he could safely return to Earth without destroying it.
- The second Dove of Hawk and Dove has blonde hair as a civilian, which lightens to become white when she transforms into her superhero mode.
- Samaritan of Astro City ended up with blue hair after becoming super. He can turn it white to maintain his secret identity, but it goes blue again when he starts using his power. The same thing happened to his arch-enemy Infidel, whose powers come from the same source — when Infidel gained his powers, his black hair turned green. When not using his powers, his hair is blond.
- Many Marvel mutants, upon getting their powers at puberty, also get weird-colored hair. (Or, as in Professor X's case, they lose it entirely.)
- Being part of the Vigil of Death Vigil dyes the person's hair white among the bonuses of gaining immortality and a personalized veilripper. The Reaper's scythe also gives its wielder an Undeathly Pallor.
- Supreme's hair turned white when he gained his powers.
Films - Animation
- Tangled has an interesting variation, where the main character was born with her hair dyed by power of the sun. When cut, her hair loses magic powers and returns to its natural brown color. When she's invoking her powers (to heal wounds etc.) the hair glows even brighter which becomes very useful when she and her friend are trapped in an underwater cave.
- In a case similar to above, Frozen has Elsa who was born with ice powers and has platinum blonde hair, despite having a father who is a redhead and a mother who is a brunette. Word of God states that had Elsa been born without powers, she would have been a brunette like her mother.
- In Mercedes Lackey's world of Velgarth, sufficient magic use will not only bleach a mage's hair prematurely white, it will also turn his eyes blue. This is why the Companions are gleaming white and have blue eyes.
- In the eponymous Dragonrealm, created by Richard Knaak, people who have latent or active magical power will also have a wide silver streak in their hair corresponding to their level of ability. The streak grows larger as the person actually taps into their power. (The only given exception to this being Cade, whose hair color, for unknown reasons, fluctuates so that on any given day his hair might be all silver or it might be almost completely brown.)
- Sort of applies in Warbreaker; royals of the tiny mountain kingdom have what is called "The Royal Locks," hair that changes color at will. (They can also grow it at will.) This power has more applications than you'd think, in a world whose magical system mostly revolves around color.
- It also changes involuntarily in response to their emotions. When Siri is traveling to the city to marry the God-King, she's so terrified that her hair stays white the entire way.
- When Vivenna is living on the street, her hair stays white the entire time as she's starving and can't spare the energy to make it any other color.
- In The Vampire Diaries: The Return, the Kitsune hair shimmers red when they are using their powers.
- In Lightning Dust, Klaus Melfton's hair turns electric yellow when he becomes the eponymous hero.
- Journey to Chaos:
- In The Silent War the immortal Redcloaks never show any sign of ageing past 20, except that their hair gradually turns white between 100-150. Serdra is halfway through this process, and says that the elders consider fully white hair a mark of "adulthood".
- Pretty Guardian Sailor Moon: the characters all have normal hair in civilian ID and it turns brightly colored when they transform.
- On Buffy the Vampire Slayer, after Tara dies, Willow's normally red hair turns black, as do her eyes. Conversely, when she activates all the slayers, her hair briefly goes white. Basically, she's Color-Coded for Your Convenience to indicate if she's casting good or evil magic.
- The BBC's Jekyll has this as a fairly major physical difference between the meek Dr Jackman and the psychopathic superpowered Mr Hyde— Hyde's hairline is different, but is also much darker.
- Used as a joke in the season 5 premiere of Charmed to Hand Wave Rose McGowan dying her hair from brown to red. The show's explanation is that a potion blew up on her and turned her hair that way.
- Phoebe's hair turns white when she is turned into a banshee and it later turns blonde when she is turned into a genie.
- The Hairstylist in ''Terraria' sells you special dyes that take more vibrant colors if you're at full health, full magic, or have lots of coins. The Clothier sells clothing dyes that have the same effect on your outfit.
- Sonic the Hedgehog has his Super Form; after collecting the seven Chaos Emeralds, he turns gold, his eyes turn red, and is basically invincible. Knuckles similarly goes from red to pink. His Werehog and Darkspine forms also have their own colors.
- Disgaea 2: Cursed Memories does this with Rozalin, when she reverts back to her Overlord Zenon state.
- In Dragon Quest VIII, when the main character builds his tension high enough, his hair becomes lighter and spiky. Not that strange considering that Akira Toriyama did the character designs. And the main character in particular looks a lot like Teen Gohan, which becomes especially obvious at max tension when his bandana comes off and the hair spikes up.
- In the original The Last Blade, Kaede can awaken his inner powers and become more powerful, faster, and blond. He keeps that guise for the second installment of the series.
- The King of Fighters: when the Orochi blood of Leona Heidern takes control of her, she awakens her Superpowered Evil Side and her hair changes from blue to red.
- A non-Orochi example is Kula Diamond, whose hair changes from a chestnut color to light blue when using her ice powers.
- In Xenogears, Fei Wong's hair is dark but turns red when he becomes Id.
- In Breath of Fire III, turning into a Kaiser form causes the main character's hair to turn gold and sparkle.
- In Rayman 3: Hoodlum Havoc, getting different power ups changes Rayman's hair to the same colour as that power up.
- In Final Fantasy IX, the Trance System has this effect on every character whose hair we can see. The heroes turn into a white-silver color despite their default. The main villain's hair turns from silver to blood-red.
- Zidane, though, doesn't turn silver. He goes blonde to pink!
- Both Geo and Sonia in Mega Man Star Force change hair color when they undergo EM Wave Change. Geo's brown hair gains a distinct violet tint as Mega Man, while Sonia goes from purple to blonde when she becomes Harp Note.
- Inverted The Fancy Pants Adventures: World 3. The initial antagonist is a pirate with a rainbow-colored beard, which causes him ridicule and a coup from his ship. When the player fetches him hair dye of Norris, the pirate restores his men's support and reclaims his ship from the ninjas that invaded in his absence.
- In Touhou: Lotus Land Story, the first boss's namesake orange hair inexplicably turns blue during her final attack.
- In Clash of Clans, Archers go from pink-haired to purple-haired as they level up.
- The Guardians In RetroBlade, (and later, any bearers of Original Augments) gain specific hair colours based on the Augment they carry. Some colours are more unnatural-looking than others.
- Played with in El Goonish Shive, when losing her magical abilities turns Nanase's hair black. And then played (relatively) straight when Susan's magical awakening turns Susan's hair dark blue...in large part because that was the color that she was already dyeing it, it reflected her personality, and the universal essence of magic has a weird sense of humor.
- In Mindmistress, Lorelei's blonde hair turns black when she turns into the titular hero.
- In Snowflame, Snowflame has white hair that turns black whenever he comes down from his high and turns back into his Secret Identity.
- Being a magical girl in Sleepless Domain is known to cause a haircolour-change for as long as the powers last, both transformed and not. None of Team Alchemical have their original hair colours (visible on the photo that is the title card for chapter 2).
- In Danny Phantom, when Danny first gets his powers and, subsequently, whenever he "goes ghost", his hair turns white. In "Phantom Planet," when he decides to reverse the accident that gave him his ghost powers and get rid of them, he gets a streak of white in his hair, which goes away when he gets his powers back. It is even commented on in-universe.
- The flashback of Vlad Masters being transformed in a lab accident involving one of Jack's inventions is where he got his white hair from. However unlike Danny his is present even when he is not using his phantom powers.
- It actually goes one step further, if you pay attention to the Flash Back portions involving pre-ghost Vlad he actually has black hair, which he gets back in his distinctive villainous form.
- In Spider-Man: The Animated Series, Felicia's Hardy's blonde hair turns white when she transforms into the Black Cat.
- In an episode of The Real Ghostbusters, Ray Stantz is accidentally pulled through a ghost portal. He comes out a few seconds later with his ginger hair turned totally white and spiked up, and he's babbling maniacally about poetry and trees and screaming. It's implied he absorbed a great deal amount of magical energy while in the portal, but he quickly calms down and returns to his regular state of mind. By the next episode his hair is back to being red.