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    1. Can anyone recommend a good hair vitamin for men. Just looking for something to add on my daily vitamin intake. Reddit · 24 Jul 2024
    2. Can I grow my vellus hair on my left temple longer? I've tried wild growth, castor oil, hsn vitamins, in currently on spiro Reddit · 18 Nov 2016
    3. M20 Vitamin D Deficiency and Hair Thinning Community · 14 May 2025
    4. Does vitamin D deficiency actually cause hair loss? Has anyone actually grew back hair after fixing vitamin d levels? Reddit · 19 Oct 2024
    5. Thoughts on topical vitamin C (added to shampoo, or a serum) effecting hair growth, thickness etc? Reddit · 11 Sept 2023
    6. Can low level of vitamins cause hair loss? Reddit · 19 Dec 2023
    7. 31M - major hair shedding after weight loss + stopping vitamins — help! Reddit · 18 May 2025
    8. What do people think about using a castor oil pack on thinning hair? It is ant-inflammatory has a lot of vitamins and fatty acids.. Reddit · 11 Sept 2018
    9. Vitamin D supplements causing hair loss Reddit · 22 Jun 2025
    10. Vitamin D deficiency and hair loss - does anyone have personal evidence of hair regrowth following correction? Reddit · 21 May 2026
    11. Vitamin e for hair loss - I believe this is one of your hair's best friend! Reddit · 27 Sept 2025
    12. M20 with Low Vitamin D, B12, and Iron: Impact on Hair Loss? Community · 29 Aug 2025
    13. Hey guys, I checked my vitamin D and it’s sufficient, but I’m still losing my hair all over. What will be the issue ? Also can I take 60k vitamin D tablets in a week? 25 M Reddit · 24 Aug 2025
    14. Hair loss from low ferritin (5 ng/mL) and vitamin D deficiency – how long to see regrowth? Reddit · 14 Jun 2025
    15. Can long term vitamin d be one of the causes of hair thinning all over scalp Community · 12 May 2025
    16. Study shows significant improvement in hair with topical minoxidil and oral Vitamin d compared to just topical minoxidil alone. Reddit · 18 Dec 2024
    17. New study: Vitamin D counteracts DHT in mice and in human hair organ culture and hair cells Reddit · 15 Nov 2024
    18. 4 months difference after taking D3 vitamin pills and Anti hair fall shampoo only Reddit · 7 Aug 2024
    19. Vitamin D3 for hair loss. Thought? Reddit · 6 Mar 2023
    20. can topical retinol ( vitamin A ) affect hair / hairloss ??? Reddit · 27 Nov 2022
    21. Vitamin D supplementation causing hair shedding? Reddit · 12 Mar 2018
    22. Experiencing Hair Thinning with Fin+Min+Vitamins Chewables After 3 Months Community · 13 Aug 2025
    23. Testosterone, gray hair, low vitamin D, and switching to oral Minoxidil Reddit · 9 Feb 2021
    24. My hair loss journey took me about 10 months I started out oral minoxidil only then added saw palmetto and vitamin d later on Reddit · 20 Dec 2025
    25. What vitamin deficiencies that cause hair loss Reddit · 10 Sept 2025
    26. 17 M Hair loss, can Vitamin D and Seborrheic Dermatitis be the reasons? Reddit · 14 Jun 2024
    27. 26F Thinner hair due to vitamin deficiencies? Reddit · 23 Dec 2023
    28. Has anyone here is vitamin D deficient and lost hair and then regrew? Reddit · 25 Aug 2026
    29. Topical Vitamin C trials for hair loss? Reddit · 25 Dec 2025
    30. 6 months of hair loss. 0.5mg dutasteride daily, minoxidil topically nightly, nizoral shampoo a few times, vitamin D has been optimized for several weeks, now starting Zinc supplementation Reddit · 28 Mar 2025