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research Prevalence of vitamin D deficiency in Slovak women with polycystic ovary syndrome and its relation to metabolic and reproductive abnormalities

16 citations , March 2015 in “Wiener Klinische Wochenschrift”

Vitamin D deficiency is common in women with PCOS and linked to some metabolic problems, but not the main cause of their metabolic issues.

research Polymorphisms of Vitamin D Receptor and the Effect on Metabolic and Endocrine Abnormalities in Polycystic Ovary Syndrome: A Review

4 citations , September 2021 in “Hormone and Metabolic Research”

This study found that VDR polymorphisms, particularly ApaI and FokI variants, are associated with hormonal and metabolic disturbances in women with PCOS, with notable variations across different ethnicities.

research Effects of vitamin A deficiency on skin and hair growth in mice

3 citations , March 1956 in “Journal of morphology”

This study found that vitamin A deficiency in mice led to impaired skin and hair growth.

research Ligand-Independent Vitamin D Receptor Actions Essential for Keratinocyte Homeostasis in the Skin

November 2024

This study demonstrated that a ligand-independent action of the vitamin D receptor significantly affects keratinocyte behavior in hair follicles and skin, pointing to its crucial role in maintaining normal hair and skin structures in rats.

research Strange cutaneous abnormalities and polyposis in an Asiatic man

November 2019 in “European journal of internal medicine”

This report documents a case of Cronkhite-Canada Syndrome in a 56-year-old Laotian man, who successfully improved with vitamin supplementation and medical treatment after experiencing weight loss, alopecia, and gastrointestinal polyposis.

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Community Join

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community My hairgrowth journey from July 10, 2025 to December 22, 2025

in Progress Pictures 28 upvotes 9 months ago

The user shared their hair growth journey using minoxidil, finasteride, and ketoconazole shampoo, along with vitamins and serums, reporting significant progress in five months. They emphasized the importance of stress management and plan to add a derma roller, castor oil, and a high-protein diet.

community Day 0 - 33 - 31M min 5%, Dut 0.5mg/daily, + more

4 upvotes 1 year ago

A 31-year-old male is using a hair loss treatment routine that includes daily 0.5mg dutasteride, 5% minoxidil, microneedling, biotin, vitamin D, omega-3 supplements, and alternating shampoos to restore hair density. He reports no side effects or noticeable regrowth yet but feels optimistic about the process.

community Finally Scalp Folliculitis-Free after 2 Decades of Suffering

64 upvotes 1 year ago

A 37-year-old male resolved scalp folliculitis by adopting a low-histamine diet and taking Vitamin A, Zinc, and Fish Oil, leading to better skin health and thicker hair. He warns about the potential toxicity of excessive Vitamin A intake.

community Doctor says i shouldn't take fin because its "hormonal"

102 upvotes 2 years ago

A user in Turkey was advised by a dermatologist to avoid finasteride due to its hormonal effects and was prescribed minoxidil, shampoo, and vitamins instead. The user is considering seeking another doctor's opinion or buying finasteride directly from a pharmacy.

community 1 Year of Finasteride. 6 Months of Oral Minoxidil. Zero Results

in Chat 71 upvotes 1 year ago

A 25-year-old saw no improvement in hair loss after using finasteride for a year and oral minoxidil for six months. Alternatives like dutasteride, microneedling, and topical treatments were suggested, but results vary.

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Learn

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learn Vitamin D

Vitamin made in the skin from sunlight, also taken as a supplement

learn Vitamin C

Is an itchy scalp linked to vitamin C? There is no evidence that an itchy scalp signals vitamin C deficiency, or that vitamin C treats patchy hair loss (alopecia areata). Patchy hair loss needs a doctor's diagnosis.

learn Vitamin B5

Can a vitamin B5-rich hair mask rescue your strands when no shampoo seems to work? Panthenol (vitamin B5) in hair masks acts as a moisturiser and can make hair feel softer and less brittle. No controlled trial shows that it treats hair loss or affects hair growth.

learn Vitamin B6

learn Vitamin E

learn Biotin

Vitamin B7: is it the ultimate secret to healthy hair or just a myth? A 2017 review found that every published case of biotin helping hair was in a person with a deficiency or another underlying condition, and no good evidence that it helps healthy people. The FDA warns that biotin can make some blood tests give wrong results.

learn Vitamin B1

Can low vitamin B1 or B2 cause thinning hair? There is no verified human trial showing that B1 or B2 deficiency causes thinning hair or that correcting it regrows hair; a 2019 review concludes the role of micronutrients in hair loss is real but unclear and still needs controlled trials.

learn vitamin A

Can too much vitamin A cause hair loss? Sustained vitamin A intake above the tolerable upper limit (3,000 mcg/day of retinol for adults) is linked in case reports to diffuse hair shedding; the claim that it amplifies DHT-driven hair loss has no published human evidence behind it.

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Clinics

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Hair Loss Treatments
IV Vitamin & Therapy LoungeSheffield, England · GB

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