The largest hair loss community and research database in the world

    Learn

    Read about the basics and view an index of important topics related to hair. Read enyclopedia »

    Research

    View the full text research archives for any subject related to hair loss and alopecia. Search research »

    Community

    Connect with hundreds of thousands of others who are defeating hair loss. Join forum »

    TresslessGPT

    Ask the chat bot any questions about hair loss and treatments. Answers are based on the latest research and the opinions of the community. Now free for everyone. Chat with AI »
    Popular topics:

    New in community

    1. Featured Community Post

      Research Backed Dutasteride Simulator (Serum/scalp DHT included for all doses)

      by Fuzzasteride

      A Dutasteride Simulator predicts serum dutasteride, serum DHT, and scalp DHT levels using models from research papers. It simulates various dosing schedules to determine steady-state effects and visualizes outcomes, including hair growth-related scalp DHT suppression.

      Read More
    2. I changed the brand of min+fin and getting some shed need some guidance

      General A 20-year-old male switched from MorrF5 to Zeelab’s MinoxilF, both containing minoxidil 5% and finasteride 0.1%, and is experiencing unexpected hair shedding. He is seeking guidance on whether the shedding is due to the brand change or if it's a normal reaction.
    3. Switched from FIN to DUT, hairline/temples worse

      Finasteride/Dutasteride Switching from finasteride to dutasteride and oral minoxidil worsened hair thinning at the hairline and temples. The user is considering returning to finasteride, as dutasteride may not be effective for them.
    4. I aggregated hundreds of hair loss experiences. Here’s what actually shows up.

      Research/Science Finasteride and minoxidil are commonly used for hair loss, with RU58841 and microneedling also showing effectiveness. Oral minoxidil and dutasteride are noted for their impact, while side effects and alternative treatments like ketoconazole and natural DHT blockers are discussed.
    5. 2-year progress | Finasteride 1 mg oral daily + Minoxidil 5% topical nightly

      Progress Pictures A 33-year-old experienced significant hair regrowth over two years using daily oral finasteride and topical minoxidil, with no noticeable side effects. Consistent treatment led to visible improvement in hair density.
    6. [32M] 4 months into 5mg fin and oral min. (Oct. ‘25 vs. Jan ‘26)

      Progress Pictures A 32-year-old man experienced positive hair regrowth after 4 months using 1.2mg finasteride and 3mg oral minoxidil, with no side effects. He used a chewable combo pill from Hims, noting minoxidil aids regrowth and finasteride maintains hair.
    7. Wanting to reinstate finasteride, but still slightly anxious of PFS

      General The user is anxious about potential side effects of finasteride, particularly PFS, and is considering reinstating it for hair loss treatment. They experienced anxiety-induced side effects previously and are seeking advice on overcoming their fear of restarting finasteride.
    View more new posts in Community →
    Image of study

    New in research

    1. What Are the Clinical Guidelines for Diagnosing and Managing Androgenic Alopecia in Adults in General Practice?

      Androgenic alopecia is diagnosed by clinical evaluation and managed with treatments to stop hair loss and encourage regrowth. Image of study
    2. Comparative Effectiveness of Regenerative Biologics in Aesthetic Dermatology: A Systematic Review with Quantitative Synthesis Evaluating Exosomes, PRP, and Stem-Cell-Derived Therapies on Skin and Hair

      Exosomes and stem-cell therapies slightly outperform PRP in improving hair and skin, but more research is needed. Image of study
    3. Comparative Effectiveness of Regenerative Biologics in Aesthetic Dermatology: A Systematic Review with Quantitative Synthesis Evaluating Exosomes, PRP, and Stem-Cell-Derived Therapies on Skin and Hair

      Exosomes and stem-cell therapies slightly outperform PRP in improving hair and skin, but more research is needed. Image of study
    4. What Are the Clinical Guidelines for Diagnosing and Managing Androgenic Alopecia in Adults in General Practice?

      Androgenic alopecia is diagnosed by clinical evaluation and managed with treatments to stop hair loss and encourage regrowth. Image of study
    5. A Critical Review: Recent Advances in Ethosomal Gel for Transdermal Drug Delivery Systems

      Ethosomal gels improve drug delivery through the skin, enhancing treatment effectiveness. Image of study
    6. Is There an Association Between 25(OH)D Serum Levels and Vitamin D Status with the Severity of Androgenetic Alopecia in Men?

      Lower vitamin D levels are linked to more severe hair loss in men. Image of study
    7. A Critical Review: Recent Advances in Ethosomal Gel for Transdermal Drug Delivery Systems

      Ethosomal gels improve drug delivery through the skin, enhancing treatment effectiveness. Image of study
    8. Development of Herbal Hair Wax Stick With Scalp Nourishing Extract

      The herbal hair wax stick is a safe and effective natural alternative to synthetic hair products. Image of study
    9. Development of Herbal Hair Wax Stick With Scalp Nourishing Extract

      The herbal hair wax stick is a safe and effective natural alternative to synthetic styling products. Image of study
    View more new articles in Research →