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    GlossaryVitamin 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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      community Vitamin Deficiency: “Severely” Low on Vitamin D

      in Update  15 upvotes 1 year ago
      A user experiencing significant hair loss found they had a severe vitamin D deficiency and was prescribed 50,000IU vitamin D pills, likely to be taken weekly. They are questioning if the deficiency could be the cause of their hair loss and if correcting it could stop the shedding and improve hair recovery.

      community Just found out I am Vitamin D deficient

      in Treatment  58 upvotes 2 years ago
      A user found out they are vitamin D deficient and was prescribed high-dose vitamin D supplements, asking if others had similar experiences and if it improved their hair. Some shared improved mood and testosterone levels after treatment, while another combined vitamin D supplements with finasteride due to family history of baldness.

      community Dutasteride Literally Saves Your Hair

      in Finasteride/Dutasteride  96 upvotes 3 months ago
      Dutasteride significantly reduces scalp DHT levels and can save hair, though shedding is part of the process. Some users report success with dutasteride, while others struggle despite using it along with finasteride and oral minoxidil.

      community How much dht does Nizoral shampoo block?

      in Ketoconazole  101 upvotes 3 years ago
      Hair loss treatments discussed include Minoxidil, Finasteride, RU58841, and Nizoral shampoo. Nizoral's effectiveness is debated, with some suggesting it works as a weak antagonist for androgen receptors, while others attribute its benefits to anti-fungal and anti-inflammatory properties.