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    GlossaryCluster of Differentiation (CD)

    system for identifying cell surface molecules, especially on white blood cells

    Cluster of Differentiation (CD) refers to a system used to identify and classify surface molecules on cells, particularly white blood cells, which are critical for the immune system. These molecules serve as markers that help differentiate between various cell types and their functions, and are often used in medical diagnostics and research to understand immune responses and diseases.

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      Can i save this hairline

      community Can i save this hairline

      in General  25 upvotes 2 days ago
      The user is concerned about a receding hairline and is seeking advice on whether it can be saved. Treatments like Minoxidil, finasteride, and RU58841 are discussed as potential options.
      My hair regrowth journey

      community My hair regrowth journey

      in Journals / Progress Pictures  70 upvotes 2 days ago
      The user is documenting their hair regrowth journey using oral finasteride, topical minoxidil, ketoconazole, dermarolling, biotin shampoo, and rosemary oil. They are committed to maintaining this regimen to track progress.
      26M is this progress or loss

      community 26M is this progress or loss

      in Journals / Progress Pictures  57 upvotes 3 days ago
      The user shared progress pictures comparing hair from February 2024 to September 2025, using Dutasteride since May 2020 and Minoxidil since April 2023. Another user noted that progress can't be assessed without before and after photos spaced months apart.