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    Did you mean Pigment Casts?
    Glossary Pigment Casts

    cylindrical structures in hair follicles containing melanin

    Pigment casts are cylindrical structures found in hair follicles that contain melanin, the pigment responsible for hair color. They can be observed under a microscope and are often associated with certain hair disorders, such as trichotillomania (hair-pulling disorder) or alopecia areata, where they indicate abnormal hair growth or damage.

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      Pigmented Casts in Alopecia: A 2014 Study

      research Pigmented Casts

      16 citations , July 2013 in “The American Journal of Dermatopathology”
      This study observed that pigmented casts are present in various alopecia types but are not specific to any single diagnosis, with distinct morphological features noted in trichotillomania.
      Perinevoid Alopecia: Report of Two Cases and Literature Review

      research Perinevoid Alopecia: Report of Two Cases and Literature Review

      1 citations , April 2023 in “Clinical, cosmetic and investigational dermatology”
      This study reviewed existing literature and reported two cases of perinevoid alopecia, suggesting that melanocyte antigens may be involved in its development.

      research Lichen Planus Pigmentosus in North Africa: A Series of 17 Cases

      4 citations , November 2019 in “Dermatology - Open Journal”
      This study reports that Lichen planus pigmentosus is present in Moroccan patients but remains challenging to treat, with only some experiencing complete resolution of lesions after therapy.

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      learn Osteopontin

      signaling protein that, when suppressed, may grow hair by reducing inflammation and stem cell loss

      learn Scalp Micropigmentation

      • What pigments are used in scalp micropigmentation? Providers describe SMP pigments as organic, vegan and formulated for the scalp, but these are supplier and marketing descriptions rather than verified specifications, and clinics contradict each other on colour change and chemical content.
      • Are the pigments used in scalp micropigmentation safe? Providers describe SMP pigments as safe, medical-grade and made for the scalp, but those are supplier and clinic descriptions rather than regulatory approvals: no colour additive is approved for injection into the skin, and allergic reactions to tattoo pigment are documented.