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    Glossary Terminal Hair Follicles

    structures producing thick, pigmented hair on scalp and body

    Terminal hair follicles are the structures in the skin that produce terminal hair, which is the thick, pigmented hair found on the scalp, face, armpits, and pubic area. Unlike vellus hair, which is fine and light, terminal hair is coarser and darker, and its growth is influenced by hormonal changes, particularly androgens.

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    1. Confused why people are calling PP405 a cure...it never claimed to be able to undo miniaturization or revert vellus back to terminal hairs. It seems to be more of a growth stimulant like minoxidil. Reddit · 5 Jan 2025
    2. Minoxidil experiment on single hair follicle Reddit · 17 Jun 2025
    3. Found a slide summary for PP405 Reddit · 28 Mar 2026
    4. Finasteride only: Before vs 11 months Reddit · 31 Jul 2024
    5. Day 1 vs Day 168 (today) of defeating the norwood reaper Reddit · 9 Sept 2024
    6. Thought this was worth sharing. About 18 months. Reddit · 31 Aug 2024
    7. 0.5mg Dutasteride promotes more “regrowth” than 5mg oral Minoxidil Reddit · 3 Feb 2024
    8. Please explain this Minoxidil phenomena Reddit · 26 Oct 2023
    9. Using 5% Minoxidil for Frontal Vellus Hair to Terminal Community · 19 Oct 2025
    10. 1 year on oral minoxidil 5mg and finasteride 1 mg on alternate days. Started derma rolling 1 month back. Will the vellus hair in temple become terminal? Also seeing good hair growth and reduced hairfall after I started Biotin and other hair growth supplements Reddit · 7 May 2025
    11. DHT is required to convert vellus hair into terminal hair? Reddit · 27 Dec 2024
    12. Baby hair progress. Can they become terminal? Reddit · 18 Sept 2026
    13. Turning vellus hairs into terminal hair Reddit · 15 Oct 2024
    14. Transition from Baby Hair to Normal Hair? Reddit · 12 Apr 2024
    15. 2-Month Progress on Hair Loss Treatment: Is It Working ? Reddit · 2 May 2026
    16. Slow responder: Progress stalling on dut, stabilization and thin fuzz but the hairs aren't going terminal. I wonder what options I have left are Reddit · 23 Apr 2026
    17. 52 year old norwood 6 vellus to terminal, 5 months progress Reddit · 27 Jun 2026
    18. New Hair Loss Cure: AMP-303 Is Back. It’s what PP405 should have been. Reddit · 2 Apr 2026
    19. 15 months topical 5% min and 0.5 dut. Is this also regrowth? Or could these grow into terminal hairs at some point? Reddit · 4 Sept 2026
    20. If all these vellus hairs turn terminal I’m gonna be a chewbacca Reddit · 7 Mar 2026
    21. Terminal hairs growing in, but derm still says I’m going to go bald in the years to come?? Reddit · 20 May 2025
    22. my Body hair has stopped working Reddit · 18 Feb 2024
    23. Can Finasteride be Enough to thicken hair? Reddit · 16 Mar 2021
    24. Why don't Minoxidil regenerated hairs become terminal on the head? Reddit · 29 Mar 2025
    25. Oral min and ru 🙏let’s hope these go terminal Reddit · 22 Oct 2024
    26. 4 months Fin+Min. Daily. Hairline looks promising Reddit · 10 Apr 2026
    27. Welp - pp405 conference showed nothing Reddit · 28 Mar 2026
    28. Started Jan 1st on 5mg minoxidil and 0.5mg dutasteride progress pic (28M) Reddit · 25 Feb 2026
    29. New vellus all over — just 9 days into once-daily 5% minoxidil. Reddit · 31 Dec 2025
    30. Been on Fin 1 year and 7 months and 2.5 Oral minoxidil for 6 months Reddit · 4 Jul 2025