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      research Analysis of the Working Principle of Hair Dye

      June 2026 in “Applied and Computational Engineering”
      This study reviewed the principles and classifications of hair dyes, identifying significant differences between oxidative, temporary non-oxidative, and semi-permanent non-oxidative dyes in terms of duration, application methods, and potential risks, which could help improve safety and convenience in hair dye use.

      research The science of color: How chemical dyeing processes transform hair structure

      November 2025 in “Zenodo (CERN European Organization for Nuclear Research)”
      This study examined how different hair dye processes affect hair structure at a molecular level, finding that oxidative dyes increase keratin porosity more than non-oxidative dyes, and highlighted emerging technology aimed at reducing hair damage while preserving color quality.

      research The science of color: How chemical dyeing processes transform hair structure

      November 2025 in “International Journal of Science and Research Archive”
      This study reviews how different hair dyeing methods affect hair structure, showing oxidative dyes cause more structural damage than semi-permanent dyes, while new technologies aim to minimize harm while preserving color.

      research Types of Hair Dye and Their Mechanisms of Action

      84 citations , April 2015 in “Cosmetics”
      This review discusses various types of hair dyes, their mechanisms of action, molecular structures, application methods, and formulation aspects, but reports no new research findings.

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      community Looks like fin nuked my hair 1mg ED

      in Progress Pictures  47 upvotes 5 months ago
      Finasteride can cause initial hair shedding, which may indicate effectiveness, with improvements seen after 12-24 months. Some users enhance results by combining it with minoxidil and dermarolling.

      community How come some guys are half bald yet their hair is so healthy?

      in Finasteride/Dutasteride  62 upvotes 1 year ago
      A 22-year-old male experiencing diffuse thinning and frizzy hair has been using finasteride for nine months and is seeking advice on improving hair quality. Suggestions include using conditioners, biotin, rosemary oil, and addressing scalp conditions like seborrheic dermatitis or psoriasis, while finasteride may help reverse miniaturization and improve hair health.

      community 22 | ~34 Months Finasteride Update

       820 upvotes 2 years ago
      A user shared their 34-month update on using finasteride for hair loss, noting they maintained regrowth even after stopping minoxidil a year ago. Other users shared similar experiences and expressed admiration for the results.

      community Story time! The Great Unbalding (PP405)

       230 upvotes 11 months ago
      PP405 is a promising new hair loss treatment that may reactivate dormant hair follicles without side effects. It could surpass traditional treatments like minoxidil and finasteride if successful in further trials.

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