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    Did you mean Hair cuticle?
    GlossaryCuticle

    outermost layer of a hair strand, protecting inner layers

    The cuticle is the outermost layer of a hair strand, composed of overlapping, scale-like cells that protect the inner layers of the hair shaft. It acts as a barrier against environmental damage and helps maintain the hair's moisture balance, contributing to its overall strength and shine.

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      learn Adenosine

      nucleoside used for hair regrowth stimulant properties

      learn Valproic acid

      an anticonvulsant repurposed for hair loss via histone inhibition

      learn GHK-Cu

      a copper peptide showing promise in both regrowth and reversing gray hair

      learn HMI-115

      much-hyped research compound targeting prolactin receptor in scalp

      learn Ketoconazole

      antifungal with some anti-androgenic benefits, often used as a shampoo