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    Glossary Serum

    clear fluid remaining after blood clots, minus cells and proteins

    Serum is the clear, yellowish fluid that remains after blood has clotted and the blood cells and clotting proteins have been removed. It contains important components like electrolytes, antibodies, hormones, and proteins, which are crucial for various bodily functions and diagnostic tests. In the context of hair and alopecia, serum can refer to specialized topical treatments designed to nourish the scalp and promote hair growth.

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    Community 10 of 381

    1. 22M: Hair Loss Worsening Despite Using Prescribed Serum and Shampoo Community · 9 May 2026
    2. Advise if this serum is worth trying Reddit · 21 Dec 2025
    3. Any experience in GHK-CU and AHK-CU serum Reddit · 13 Oct 2025
    4. Thoughts on topical vitamin C (added to shampoo, or a serum) effecting hair growth, thickness etc? Reddit · 11 Sept 2023
    5. Diluting 0.05% topical finasteride serum/oil Reddit · 8 Aug 2023
    6. Could Serum Ferritin Explain my Crazy Shedding? Reddit · 7 Dec 2025
    7. Serum based on plant extracts boosts hair growth in weeks. Reddit · 10 Oct 2025
    8. I reduced my serum DHT by 60% without Fin/Dut but not seeing any real stabilization or growth Reddit · 7 Sept 2025
    9. Dutasteride mesotherapy doesn’t impact your bodies serum hormone levels? Reddit · 4 Jul 2025
    10. Alright, so what’s the best way to lower scalp DHT with the least impact on serum DHT? Reddit · 2 Jul 2025
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    Research 10 of 1000+

    1. Exogenous Testosterone (T) Alone or with Finasteride Increases Physical Performance, Grip Strength, and Lean Body Mass in Older Men with Low Serum T The Journal of Clinical Endocrinology and Metabolism · 2005 · 506 citations
    2. The Effect of 5α-Reductase Inhibition with Dutasteride and Finasteride on Semen Parameters and Serum Hormones in Healthy Men The Journal of Clinical Endocrinology and Metabolism · 2007 · 195 citations
    3. Sebum Free Fatty Acids Enhance the Innate Immune Defense of Human Sebocytes by Upregulating β-Defensin-2 Expression Journal of Investigative Dermatology · 2009 · 195 citations
    4. Serum Androgens in Normal Prepubertal and Pubertal Children and in Children with Precocious Adrenarche The Journal of Clinical Endocrinology & Metabolism · 1976 · 192 citations
    5. SERUM STEROIDS AND PITUITARY HORMONES IN FEMALE PUBERTY: A PARTLY LONGITUDINAL STUDY Clinical Endocrinology · 1980 · 186 citations
    6. Decreased Serum Ferritin is Associated With Alopecia in Women Journal of Investigative Dermatology · 2003 · 163 citations
    7. The effects of two doses of spironolactone on serum androgens and anagen hair in hirsute women Fertility and sterility · 1985 · 142 citations
    8. Terbinafine levels in serum, stratum corneum, dermis-epidermis (without stratum corneum), hair, sebum and eccrine sweat. Acta dermato-venereologica · 1991 · 121 citations
    9. A Nonredundant Human Protein Chip for Antibody Screening and Serum Profiling Molecular & cellular proteomics · 2003 · 117 citations
    10. Effect of 1 mg/day finasteride on concentrations of serum prostate-specific antigen in men with androgenic alopecia: a randomised controlled trial Lancet Oncology · 2006 · 89 citations
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