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Glossary Vitamin D Synthesis

skin produces vitamin D3 when exposed to UVB sunlight

Vitamin D synthesis is the process by which the skin produces vitamin D when exposed to ultraviolet B (UVB) rays from sunlight. This process involves the conversion of 7-dehydrocholesterol in the skin to cholecalciferol (vitamin D3), which is then further metabolized in the liver and kidneys to its active form, calcitriol. This active form of vitamin D is crucial for calcium absorption, bone health, and immune function.

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Research

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research Vitamin D and Skin: An Review and Update

April 2024 in “Nepal journal of dermatology, venereology & leprology”

This review highlights that vitamin D is increasingly recognized for its roles in skin health, including treatment of psoriasis, potential applications in conditions like atopic dermatitis, and possible prevention of skin malignancies, as observed in various studies linking low levels to autoimmune skin diseases.

research Vitamina D y la piel. Una revisión para dermatólogos

16 citations , March 2019 in “Actas Dermo-Sifiliográficas”

This review discusses the relationship between vitamin D and various skin diseases but reports no new clinical results, emphasizing the need to assess and correct vitamin D deficiencies.

research Effect of vitamins on animal fur and its mechanism

July 2024 in “DOAJ (DOAJ: Directory of Open Access Journals)”

This article reviews the effects of vitamins, including A, C, D, E, and B, on animal fur, highlighting their roles in promoting healthy skin and fur condition by regulating cell renewal, metabolism, and collagen synthesis.

research Topical sunscreens and vitamin D

July 2012 in “British Journal of Dermatology”

This article discusses the relationship between topical sunscreen use and vitamin D synthesis but reports no new clinical results.

research Sulforaphane mobilizes cellular defenses that protect skin against damage by UV radiation

184 citations , October 2007 in “Proceedings of the National Academy of Sciences of the United States of America”

This study found that sulforaphane-rich broccoli sprout extracts reduced UV-induced erythema by 37.7% in humans, suggesting a protective strategy against UVR damage.

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Community Join

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community Does vitamin D deficiency actually cause hair loss? Has anyone actually grew back hair after fixing vitamin d levels?

in Chat 65 upvotes 1 year ago

Vitamin D deficiency can contribute to hair loss, but it is not the sole cause, and supplementation may not always resolve the issue. Treatments like finasteride and minoxidil are recommended for hair regrowth, with vitamin D and other supplements providing additional support.

community Does anyone have a list of vitamins that could help alongside dut and min?

6 upvotes 7 months ago

The conversation is about hair loss treatments, specifically using dutasteride and oral minoxidil, and exploring additional vitamins and supplements like vitamin D, zinc, biotin, and omega-3 to support hair health. Users suggest getting a blood panel to identify deficiencies and emphasize the importance of protein and overall nutrition.

community Best supplements to compliment finasteride protocol

17 upvotes 2 months ago

The conversation discusses supplementing a finasteride regimen for hair loss with Omega 3, Vitamin D/K, Zinc, probiotics, and possibly adding oral minoxidil, magnesium, astaxanthin, and B vitamins. Users suggest testing nutrient levels before adding supplements like zinc and iron, and consider biotin, keratin, and possibly switching to dutasteride or adding topical minoxidil.

community General Advice for healthy hair: Tips and tricks?

7 upvotes 3 years ago

The post and conversation are about hair loss treatments and tips for healthier hair, including using a dermaroller, taking vitamins (D, omega 3, zinc, magnesium), and using a silk pillowcase. The user also inquires about the effectiveness of aloe vera and oils for hair.

community Finasteride 0.5 EOD my experience so far (short term) should I continue?

4 upvotes 11 years ago

Finasteride users report reduced libido and increased hair shedding initially, but some see these as temporary or manageable side effects. Vitamin E and D-3 supplements are discussed as potential aids for libido and mood.

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Learn

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learn Biotin

B vitamin, often sold as a hair supplement

learn Vitamin D

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

What is the connection between Vitamin D and hair loss? Observational studies link low vitamin D with some types of hair loss, especially alopecia areata, but they have not shown that low vitamin D causes it.
Can Vitamin D deficiency trigger excessive hair shedding? Observational studies link low vitamin D with some kinds of shedding, but they have not shown that it causes it. A blood test and a doctor can check your level.
Is it safe to take Vitamin D supplements for hair growth? At normal doses vitamin D is well tolerated by most adults, but high doses can raise blood calcium. It has only been linked to hair in people who are deficient, so ask a doctor about a blood test first.
All 5 questions on Vitamin D →

learn Calcium D oantothenate

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