Search
for

    Glossary Half-Life

    Half-life refers to the time required for the concentration of a substance, such as a drug or hormone, to reduce to half its initial value. In the context of hair loss and hair biology, understanding the half-life of hormones like dihydrotestosterone (DHT) is crucial, as prolonged exposure to elevated levels can contribute to conditions like androgenetic alopecia. Key distinguishing characteristics of half-life include its dependence on metabolic processes and the implications it has for treatment efficacy and timing in hair loss therapies.

    Related Terms

    Community 10 of 99

    1. Why do we take dutasteride every single day when its half-life is 3-5 weeks? Reddit · 24 Apr 2026
    2. Dutasteride half life - conflicting information Reddit · 4 Mar 2024
    3. Dutasteride actually has different half lives depending on dose Reddit · 25 Jan 2025
    4. What's the point of finasteride if dutasteride exists? Reddit · 21 Sept 2026
    5. Increased efficacy of fin/dut: with or without meal? Reddit · 11 May 2026
    6. When you use 1 mg fin vs you use 2.5 mg dut Reddit · 29 Apr 2026
    7. Using topical finasteride once a week (like oral) Reddit · 24 Mar 2026
    8. M25 Dutasteride is the best thing that ever happened to me Reddit · 12 Mar 2026
    9. Why do you take finasteride instead of dutasteride and also vice versa Reddit · 4 Dec 2025
    10. Dutasteride thrice weekly beats finasteride. But daily? Reddit · 1 Dec 2025
    All community results →

    Research 10 of 1000+

    1. The Pharmacokinetics of 2.5- to 10-mg Oral Doses of Minoxidil in Healthy Volunteers The Journal of Clinical Pharmacology · 1989 · 25 citations
    2. Bioequivalance of single oral administration of finasteride tablet and capsule in healthy volunteers 2004
    3. The effect of St. John’s wort on the pharmacokinetics, metabolism and biliary excretion of finasteride and its metabolites in healthy men European Journal of Pharmaceutical Sciences · 2008 · 33 citations
    4. Progesterone, neurosteroids, and the hormonal basis of catamenial epilepsy Annals of Neurology · 2003 · 30 citations
    5. Sublingual tofacitinib for alopecia areata: a roll‐over pilot clinical trial and analysis of pharmacokinetics International Journal of Dermatology · 2021 · 9 citations
    6. Effectiveness and safety of oral dutasteride for male androgenetic alopecia in real clinical practice: A descriptive monocentric study Dermatologic Therapy · 2019 · 6 citations
    7. Activity of steroid 4 and derivatives 4a–4f as inhibitors of the enzyme 5α-reductase 1 Bioorganic & medicinal chemistry · 2018 · 3 citations
    8. 24 ARQ-234: a high affinity CD200-Fc fusion protein for the treatment of atopic dermatitis 2023
    9. Nanocarriers for Improved Delivery of Angiotensin-(1-7) Elsevier eBooks · 2015
    10. Quality of Life and the Presence of Depression Among Adults with Hair Loss in the South of Saudi Arabia Psychology Research and Behavior Management · 2022 · 5 citations
    All research results →

    Learn 1

    1. Dutasteride 5-alpha reductase inhibitor that blocks both enzyme types, a stronger DHT blocker than finasteride