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    Did you mean Permanent Hair Dye?
    GlossaryPermanent Hair Dye

    chemically alters hair pigment for long-lasting color

    Permanent Hair Dye, also known as Permanent Hair Color, is a type of hair coloring product that chemically alters the natural pigment of the hair. It typically contains ammonia and peroxide, which open the hair cuticle and allow the color to penetrate deeply into the hair shaft, resulting in long-lasting color that can cover gray hair effectively. This type of dye does not wash out and generally requires new growth to be touched up.

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      Hair Dye: A Trichoscopy Pitfall

      research Hair Dye: A Trichoscopy Pitfall

      6 citations, March 2015 in “Journal of The American Academy of Dermatology”
      Hair dye can make it hard to diagnose scalp conditions correctly.
      The Chemistry Mechanism of Hair Dyes

      research The Chemistry Mechanism of Hair Dyes

      1 citations, December 2022 in “Middle East Journal of Science”
      Permanent hair dyes use chemicals that react with hydrogen peroxide to create color.
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      Hair Cosmetics: Dyes

      research Hair Cosmetics: Dyes

      21 citations, October 2014 in “Actas dermo-sifiliográficas/Actas dermo-sifiliográficas”
      Hair dyes can change hair color temporarily or permanently but may cause side effects like skin reactions and hair damage.

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