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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.

    Related Terms

    Learn 3 of 10

    1. Keratin
    2. Hydrolyzed Keratin
    3. Alpha Keratin
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    Community 10 of 45

    1. Seeking Supplement Advice for Keratin Enhancement and Hair Flattening Community · 16 Feb 2026
    2. Let's talk keratin products and hair loss Reddit · 22 Sept 2025
    3. 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
    4. Keratin fibers vs. Gossypium Herbaceum Hair fibers Reddit · 31 Aug 2024
    5. Is Biotin or Keratin shampoo better for hair health/growth Reddit · 4 May 2024
    6. Question about seborrheic dermatitis and keratin Reddit · 16 May 2019
    7. Apparently, Keratin Microsphere products are already on the market. Gonna give it a college try, wish me luck! Reddit · 20 Sept 2024
    8. Is it safe to get keratin treatment on transplanted hair? Reddit · 10 Aug 2024
    9. Male - 25 y.o - gulfs slowly fading like my father’s - topical minoxidil, soon starting fin + keratine supplement Community · 15 Jul 2024
    10. Keratin microspheres - breakthrough Reddit · 6 Mar 2024
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    Research 10 of 1000+

    1. The human keratins: biology and pathology Histochemistry and Cell Biology · 2008 · 1398 citations
    2. ‘Hard’ and ‘soft’ principles defining the structure, function and regulation of keratin intermediate filaments Current Opinion in Cell Biology · 2002 · 686 citations
    3. Enrichment for Living Murine Keratinocytes from the Hair Follicle Bulge with the Cell Surface Marker CD34 Journal of Investigative Dermatology · 2003 · 561 citations
    4. A Review of Keratin-Based Biomaterials for Biomedical Applications Materials · 2010 · 517 citations
    5. Keratin cytoskeletons in epithelial cells of internal organs Proceedings of the National Academy of Sciences · 1979 · 482 citations
    6. Keratin 19 as a biochemical marker of skin stem cells in vivo and in vitro: keratin 19 expressing cells are differentially localized in function of anatomic sites, and their number varies with donor age and culture stage Journal of Cell Science · 1996 · 441 citations
    7. Keratins in health and cancer: more than mere epithelial cell markers Oncogene · 2010 · 438 citations
    8. Multipotent nestin-positive, keratin-negative hair-follicle bulge stem cells can form neurons Proceedings of the National Academy of Sciences · 2005 · 419 citations
    9. Keratin 15 Promoter Targets Putative Epithelial Stem Cells in the Hair Follicle Bulge Journal of Investigative Dermatology · 2003 · 387 citations
    10. Onset of Keratin 17 Expression Coincides with the Definition of Major Epithelial Lineages during Skin Development The Journal of Cell Biology · 1998 · 318 citations
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