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    Glossary Skin

    largest organ, acting as a protective barrier and sensory interface

    Skin is the body's largest organ, serving as a protective barrier against environmental hazards, regulating temperature, and enabling sensory perception. It consists of three main layers: the epidermis (outer layer), dermis (middle layer), and hypodermis (subcutaneous layer), each playing a crucial role in maintaining overall health and homeostasis.

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    Community 10 of 285

    1. Hair and normal skin created from human pluripotent stem cells for the first time Reddit · 5 Jun 2020
    2. What’s a good carrier for GHK-Cu or AHK-Cu peptides to penetrate skin? Reddit · 27 Apr 2026
    3. I Guess balding is cured so should we close subreddit and move to hairstyling photos 😁 Botox-like nerve blocking reveals potential way to fully regenerate skin without scarring Reddit · 22 Mar 2026
    4. Anyone use a custom topical from Skin Medicinals with latanoprost ? Reddit · 5 Oct 2025
    5. Did Dutasteride change how you look physically? your facial profile such as skin thickness, fat distribution or softness? Reddit · 29 Jul 2025
    6. Do you see skin shedding with micro needling? Reddit · 11 Mar 2025
    7. [26M] Min 5 month progress, worse skin? Reddit · 2 Aug 2024
    8. Adding Creatine while on fin + min has caused my skin to become red and terrible Reddit · 22 Feb 2023
    9. Skin Aging and Minox Reddit · 20 Feb 2015
    10. I think the GHK-CU from my skin care routine is unintentionally saving my hair at my hairline Reddit · 1 Sept 2026
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    Research 10 of 1000+

    1. Distinct fibroblast lineages determine dermal architecture in skin development and repair Nature · 2013 · 1235 citations
    2. Epidermal homeostasis: a balancing act of stem cells in the skin Nature Reviews Molecular Cell Biology · 2009 · 1039 citations
    3. Scratching the surface of skin development Nature · 2007 · 788 citations
    4. Mechanisms regulating skin immunity and inflammation Nature Reviews Immunology · 2014 · 610 citations
    5. Mice with a null mutation of the TGFα gene have abnormal skin architecture, wavy hair, and curly whiskers and often develop corneal inflammation Cell · 1993 · 578 citations
    6. Tcf3 and Lef1 regulate lineage differentiation of multipotent stem cells in skin Genes & Development · 2001 · 555 citations
    7. Dextran hydrogel scaffolds enhance angiogenic responses and promote complete skin regeneration during burn wound healing Proceedings of the National Academy of Sciences · 2011 · 527 citations
    8. Adipocyte Lineage Cells Contribute to the Skin Stem Cell Niche to Drive Hair Cycling Cell · 2011 · 499 citations
    9. Reversible Activation of c-Myc in Skin Molecular Cell · 1999 · 467 citations
    10. 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
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    Learn 5 of 33

    1. GHK-Cu Copper peptide used in skin and hair cosmetics
    2. Vitamin D Vitamin made in the skin from sunlight, also taken as a supplement
    3. Peppermint herb and oil thought to stimulate skin and hair
    4. Hydrocortisone Mild corticosteroid used on the skin and scalp
    5. Dexpanthenol Provitamin B5, a moisturiser in hair and skin products
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