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      learn Alfatradiol

      a synthetic estrogen used topically as an anti-androgen

      learn Cyproterone

      a synthetic anti-androgen and weak progestogen that inhibits DHT binding to androgen receptor

      learn Hydrocortisone

      a synthetic cortisol used for anti-inflammatory effects

      learn Bimatoprost

      a synthetic prostamide used to treat eyelashes also shows promise for stimulating hair growth on scalp

      learn Finasteride

      Frontline, gold standard treatment for combatting androgenic alopecia

    Research

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      research Bioactive Nutritional Macromolecules Supporting Hair Structure, Density, and Growth: A Comprehensive Review

      March 2026 in “Cosmetics”
      This review examines the roles of five macromolecules—type I collagen, elastin, keratin, ceramides, and melanin—in enhancing hair structure, density, and growth. Type I collagen and elastin support the hair follicle's extracellular matrix, promoting growth and reducing breakage. Keratin improves tensile strength and reduces shedding, with clinical studies showing a 30–50% decrease in hair loss. Ceramides maintain moisture balance and structural integrity, while melanin provides UV protection and maintains color. Clinical trials confirm these macromolecules' effectiveness in improving hair health, despite some limitations in study populations and sample sizes. The evidence supports their combined use to enhance hair strength, resilience, and overall health.
      Hair Cosmetic Alterations

      research Hair Cosmetic Alterations

      September 1998 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology”
      The document concludes that individualized treatments for hair issues are effective, certain hair changes can indicate neurocutaneous diseases, specific lotions improve skin health, laser hair removal works but needs more study on long-term effects, men's cosmetics are diverse, peeling is effective but can have side effects, and facial pigmentation is often due to overactive skin cells.

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