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    Keratin

    Keratin is one of a family of structural fibrous proteins also known as scleroproteins. It is the key structural material making up scales, hair, nails, feathers, horns, claws, hooves, and the outer layer of skin in tetrapod vertebrates. Keratin also protects epithelial cells from damage or stress. Keratin is extremely insoluble in water and organic solvents. Keratin monomers assemble into bundles to form intermediate filaments, which are tough and form strong unmineralized epidermal appendages found in reptiles, birds, amphibians, and mammals. Excessive keratinization participate in fortification of certain tissues such as in horns of cattle and rhinos, and armadillos' osteoderm. The only other biological matter known to approximate the toughness of keratinized tissue is chitin. Keratin comes in two types: the primitive, softer forms found in all vertebrates and the harder, derived forms found only among sauropsids.

    Information, not medical advice. Talk to a licensed doctor or pharmacist before starting or changing a treatment.

    Research 10

    1. Differential expression of keratin and keratin associated proteins are linked with hair loss condition in spontaneously mutated inbred mice bioRxiv (Cold Spring Harbor Laboratory) · 2024
    2. Correction of Tear Trough Deformity Using Autologous Fibroblast Combined with Keratin: New Soft Tissue Filler Aesthetic plastic surgery · 2018 · 12 citations
    3. Characterization of Hair Follicles in Hirosaki Hairless Rats with Deletion of Basic Hair Keratin Genes. Enlarged Medulla, Loss of Cuticle and Long Catagen Hirosaki University Repository for Academic Resources (Hirosaki University) · 2009 · 3 citations
    4. Patient satisfaction and adverse effects following the use of topical hair fiber fillers International journal of trichology · 2022 · 1 citations
    5. Increased rate of hair keratin gene loss in the cetacean lineage BMC Genomics · 2014 · 42 citations
    6. Effects of Retinoic Acid Exposure <i>in utero</i> on Mouse Vibrissal Follicle Development Anatomia Histologia Embryologia · 2000 · 3 citations
    7. Annurca Apple Polyphenols Ignite Keratin Production in Hair Follicles by Inhibiting the Pentose Phosphate Pathway and Amino Acid Oxidation Nutrients · 2018 · 18 citations
    8. Psoriasiform skin reaction due to Brazilian keratin treatment International Journal of Trichology · 2022 · 2 citations
    9. Congenital hair loss disorders: Rare, but not too rare The Journal of Dermatology · 2011 · 41 citations
    10. A novel missense mutation in the mouse hairless gene causes irreversible hair loss: Genetic and molecular analyses of Hrm1Enu Genomics · 2006 · 18 citations
    All research on Keratin →

    Community 10

    1. Apparently, Keratin Microsphere products are already on the market. Gonna give it a college try, wish me luck! Reddit · 20 Sept 2024
    2. Male - 25 y.o - gulfs slowly fading like my father’s - topical minoxidil, soon starting fin + keratine supplement Community · 15 Jul 2024
    3. Is it safe to get keratin treatment on transplanted hair? Reddit · 10 Aug 2024
    4. Finally seeing some progress 24M Reddit · 16 Nov 2025
    5. Keratin microspheres - breakthrough Reddit · 6 Mar 2024
    6. Topical Dutasteride. Does it work? Reddit · 5 Jun 2024
    7. A Decade on Hairloss Battle Reddit · 28 Dec 2019
    8. Seeking Supplement Advice for Keratin Enhancement and Hair Flattening Community · 16 Feb 2026
    9. Let's talk keratin products and hair loss Reddit · 22 Sept 2025
    10. 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
    All community posts on Keratin →