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    Glossary Keratin

    protein forming hair, nails, and skin's outer layer

    Keratin is a type of protein that forms the structural foundation of hair, nails, and the outer layer of skin. It provides strength and protection, making these tissues resilient and less prone to damage. In hair, keratins are essential for maintaining its integrity and elasticity, and they play a crucial role in the hair's overall health and appearance.

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    Research 10 of 1000+

    1. The human keratins: biology and pathology Histochemistry and Cell Biology · 2008 · 1398 citations
    2. Acidic and basic hair/nail ("hard") keratins: their colocalization in upper cortical and cuticle cells of the human hair follicle and their relationship to "soft" keratins. 1986 · 356 citations
    3. Different keratin polypeptides in epidermis and other epithelia of human skin: a specific cytokeratin of molecular weight 46,000 in epithelia of the pilosebaceous tract and basal cell epitheliomas. The Journal of Cell Biology · 1982 · 277 citations
    4. Keratins of the Human Hair Follicle International review of cytology · 2005 · 276 citations
    5. The Catalog of Human Hair Keratins 1999 · 235 citations
    6. Human Hair Keratin‐Associated Proteins (KAPs) International review of cytology · 2006 · 226 citations
    7. The cell-surface marker MTS24 identifies a novel population of follicular keratinocytes with characteristics of progenitor cells Development · 2006 · 207 citations
    8. Keratin 15 Expression in Stratified Epithelia: Downregulation in Activated Keratinocytes Journal of Investigative Dermatology · 1999 · 198 citations
    9. Dihydrotestosterone-Inducible Dickkopf 1 from Balding Dermal Papilla Cells Causes Apoptosis in Follicular Keratinocytes Journal of Investigative Dermatology · 2007 · 171 citations
    10. Delayed Wound Healing in Keratin 6a Knockout Mice Molecular and Cellular Biology · 2000 · 149 citations
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    Community 10 of 45

    1. Is keratin fusion bond good alternative to clip on hair patch for diffused thinners Reddit · 6 Sept 2023
    2. Seeking Supplement Advice for Keratin Enhancement and Hair Flattening Community · 16 Feb 2026
    3. Let's talk keratin products and hair loss Reddit · 22 Sept 2025
    4. My brain absorbing the assorted off label drugs I put near it on a daily basis just for maximum keratin production Reddit · 29 Nov 2024
    5. Apparently, Keratin Microsphere products are already on the market. Gonna give it a college try, wish me luck! Reddit · 20 Sept 2024
    6. Keratin fibers vs. Gossypium Herbaceum Hair fibers Reddit · 31 Aug 2024
    7. Is it safe to get keratin treatment on transplanted hair? Reddit · 10 Aug 2024
    8. Male - 25 y.o - gulfs slowly fading like my father’s - topical minoxidil, soon starting fin + keratine supplement Community · 15 Jul 2024
    9. Is Biotin or Keratin shampoo better for hair health/growth Reddit · 4 May 2024
    10. Keratin microspheres - breakthrough Reddit · 6 Mar 2024
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    Learn 3 of 10

    1. Hydrolyzed Keratin
    2. Alpha Keratin
    3. Keratin
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