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. Oral minoxidil hypertension effect vanishes when mixed with water

      General Mixing 2.5mg of minoxidil powder with 150ml of water seems to eliminate its blood pressure effects, causing only a brief 20-second hypertension. The reason for this effect is unclear.
    3. Continued Acne and Body Hair on Dutasteride 0.5mg

      Treatments Dutasteride at 0.5mg has not cleared acne and has caused arm hair thickening. The user plans to increase the dose to 1mg.
    4. Fake minoxidil foam?

      Minoxidil Concerns about potentially fake minoxidil foam due to a lifted dispensing nozzle on bottles bought online from a French pharmacy.
    5. Hairline stable but diffuse thinning with topical fin+min

      Finasteride The user experienced stable hairline but diffuse thinning after switching from oral finasteride to a topical solution of minoxidil and finasteride. They are concerned about the effectiveness of the topical treatment and are considering other options due to a recent decline in hair density.
    6. M28 Great results in 5 month

      Journals / Progress Pictures A 28-year-old shared impressive hair regrowth results after 5 months using 1mg oral finasteride every other day, 2.5mg oral minoxidil daily, a 1mm dermastamp weekly, and daily scalp massages. The user is hopeful for continued progress.
    7. Next steps after 6 years on topical Minoxidil and 1mg fin with no response

      Minoxidil The user has been using oral finasteride and topical minoxidil for years without success and is seeking alternative treatments. Suggestions include switching to oral minoxidil, adding dutasteride, trying topical treatments, or considering microneedling.
    View more new posts in Community →
    Image of study

    New in research

    1. Consensus Position Statement on Emerging Treatments in Dermatology by the Association of Cutaneous Surgeons of India Task Force

      Most emerging dermatological treatments lack strong evidence and require more research. Image of study
    2. Use of Genetics in the Prediction of Success in Male Pattern Hair Loss Therapy and Mechanistic Studies

      Genetics can help tailor treatments for male pattern hair loss, improving outcomes like stabilization or modest regrowth. Image of study
    3. Trichoscopic Analysis of Androgenetic Alopecia in Men Under Forty: A Retrospective Observational Study from a Tertiary Care Hospital

      Trichoscopy effectively detects early hair follicle changes before visible baldness in men under 40. Image of study
    4. Harnessing miRNA Milk-Derived Exosomes for Hair Loss Disorders: In Vitro Modulation of WNT Signaling and Dermal Papilla Proliferation

      Milk-derived exosomes may help treat hair loss by boosting hair follicle growth. Image of study
    5. Comparative Effects of Pistacia Atlantica Leaf and Phenytoin Ointment on Rat Skin Wound Healing: Histopathological Changes and Bioactive Compounds

      Pistacia atlantica leaf ointment effectively heals wounds like phenytoin, with added antibacterial and anti-inflammatory benefits. Image of study
    6. Reduced Prostate Cancer Risk in Patients with Androgenetic Alopecia Using 5-Alpha Reductase Inhibitors: A TriNetX Real-World Cohort Study

      Using 5-alpha reductase inhibitors may lower prostate cancer risk in people with androgenetic alopecia. Image of study
    7. Microneedles Self-Implanting Astragalus Polysaccharides-Hybridized Composite Hydrogel Combined With Minoxidil To Enhance In Situ Anti-Androgenetic Alopecia

      Microneedles with Astragalus and minoxidil improve hair growth. Image of study
    8. Soulflower Coupon Code 2026 'SKV10' – Get 10% Off on Essential Oils, Soaps & Haircare Products

      Use code "SKV10" for 10% off Soulflower's natural personal care products in 2026. Image of study
    9. Gray Hair and Hair Strengthening: A Professional Guide for Hairdressers and Colorists

      Gray hair requires special coloring techniques and care to maintain quality and strength. Image of study
    View more new articles in Research →