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Hair Graying Update and Review.

K Montserrat Ramirez-Gomez1, A Imbernon-Moya2, M F Villegas-Calzada3

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|December 19, 2025
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Summary
This summary is machine-generated.

Hair graying, a natural aging sign, can cause psychological distress. Current research explores its causes, but effective treatments for premature graying remain limited, impacting self-esteem.

Keywords:
Gray hairOxidative stressPremature graying

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Area of Science:

  • Dermatology
  • Aging Research
  • Molecular Biology

Background:

  • Hair graying (canities) is a common aging sign due to melanin loss in hair follicles.
  • Premature graying significantly impacts psychological well-being and self-esteem.
  • The precise causes of hair graying are not fully understood.

Purpose of the Study:

  • To summarize the current understanding of hair graying pathogenesis.
  • To highlight the factors contributing to premature graying.
  • To discuss the limitations in current treatment options.

Main Methods:

  • Review of existing scientific literature on hair graying.
  • Analysis of factors implicated in melanin production and hair follicle aging.
  • Evaluation of current therapeutic strategies and their efficacy.

Main Results:

  • Hair graying is linked to oxidative stress, UV radiation, genetics, and lifestyle factors.
  • Reduced melanin production by melanocytes in the hair bulb is the primary mechanism.
  • Effective, evidence-based treatments for reversing or preventing graying are scarce.

Conclusions:

  • Hair graying is a multifactorial process with significant psychosocial implications.
  • Further research into the pathogenesis is needed to develop effective interventions.
  • Cosmetic solutions are currently the most common approach to manage gray hair.