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    Did you mean 5α-reductase inhibition?
    Glossary 5α-reductase inhibition

    blocking enzyme that converts testosterone to hair-loss hormone DHT

    5α-reductase inhibition refers to the process of blocking the enzyme 5α-reductase, which is responsible for converting testosterone into dihydrotestosterone (DHT). DHT is a hormone that can contribute to hair loss and conditions like benign prostatic hyperplasia. By inhibiting this enzyme, medications like finasteride and dutasteride can help reduce hair loss and treat these conditions.

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    Research 10 of 1000+

    1. Effect of Testosterone Supplementation With and Without a Dual 5α-Reductase Inhibitor on Fat-Free Mass in Men With Suppressed Testosterone Production JAMA · 2012 · 124 citations
    2. Overexpression of aldo-keto reductase 1C3 (AKR1C3) in LNCaP cells diverts androgen metabolism towards testosterone resulting in resistance to the 5α-reductase inhibitor finasteride The Journal of Steroid Biochemistry and Molecular Biology · 2012 · 45 citations
    3. <i>Curcuma aeruginosa</i>, a novel botanically derived 5α-reductase inhibitor in the treatment of male-pattern baldness: a multicenter, randomized, double-blind, placebo-controlled study Journal of Dermatological Treatment · 2011 · 34 citations
    4. Hair growth effects of oral administration of finasteride, a steroid 5 alpha-reductase inhibitor, alone and in combination with topical minoxidil in the balding stumptail macaque. The Journal of Clinical Endocrinology and Metabolism · 1992 · 34 citations
    5. Incomplete Recovery of Erectile Function in Rat after Discontinuation of Dual 5‐Alpha Reductase Inhibitor Therapy The Journal of Sexual Medicine · 2012 · 29 citations
    6. Safety and Tolerability of the Dual 5-Alpha Reductase Inhibitor Dutasteride in the Treatment of Androgenetic Alopecia Annals of Dermatology · 2016 · 19 citations
    7. Persistent Erectile Dysfunction after Discontinuation of 5-Alpha Reductase Inhibitor Therapy in Rats Depending on the Duration of Treatment The World Journal of Men s Health · 2018 · 17 citations
    8. The new paradigm for androgenetic alopecia and plant-based folk remedies: 5α-reductase inhibition, reversal of secondary microinflammation and improving insulin resistance Journal of Ethnopharmacology · 2018 · 16 citations
    9. Health Promotion Potential of Vegetables Cultivated in Northern Thailand: A Preliminary Screening of Tannin and Flavonoid Contents, 5α-Reductase Inhibition, Astringent Activity, and Antioxidant Activities Journal of Evidence-Based Complementary & Alternative Medicine · 2017 · 10 citations
    10. Pharmacodynamic modeling of finasteride, a 5 alpha-reductase inhibitor. PubMed · 1995 · 7 citations
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    Community 10 of 1000+

    1. FCE 28260: A Forgotten 5α-Reductase Inhibitor Community · 22 Aug 2024
    2. Androsterone as a Neurosteroid Replacement Strategy for 5α-Reductase Inhibitor–Associated Sexual and Affective Dysfunction Reddit · 15 Jul 2026
    3. Allopregnanolone deficiency by 5-ari inhibition (fin/dut users) Reddit · 11 Dec 2023
    4. BREAKTHROUGH: I’m a radiochemist and discovered a radioactive isotope scalp serum that OUTPERFORMS Minoxidil and 5-AR inhibitors! (Lab Data Inside) Reddit · 10 Jun 2025
    5. Why does this industry still revolve around 5-AR inhibitors? Reddit · 14 Jun 2021
    6. Did anybody use beta sisterol for hair loss? I saw in many articles in the internet that said that beta sisterol blocks dht by inhibiting 5a reductase type 2 enzyme and some reviews of people who said that it worked better than saw palmetto in terms of stoping hair loss and helping prostate. Reddit · 11 May 2023
    7. 4 months on oral dutasteride + one month and 3 weeks on topical minoxidil 5% Reddit · 23 May 2026
    8. Three months 0.5mg Dutasteride and 5% topical Minoxidil daily Reddit · 22 May 2026
    9. [Discussion] Trichoscopy in sudden-onset AGA: Pathology and reversibility of "Yellow Dots" without 5AR-inhibitors? Reddit · 22 Mar 2026
    10. Guys if you can’t take 5AR inhibitors still get on treatment ASAP Reddit · 6 Jan 2026
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    Learn 5 of 24

    1. Dutasteride 5-alpha reductase inhibitor that blocks both enzyme types, a stronger DHT blocker than finasteride
    2. Finasteride Popular 5-alpha reductase inhibitor that lowers DHT, taken as a pill or used topically
    3. Saw Palmetto Palm-berry extract taken as a supplement
    4. Rosemary Herb whose oil is used in hair care
    5. Neem Oil Oil from the neem tree, used in traditional remedies
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