Vitamin D has been studied for its potential role in addressing hair loss, particularly in conditions like telogen effluvium (TE), androgenetic alopecia (AGA), and alopecia areata (AA). Research indicates a link between low serum vitamin D levels and various forms of non-scarring alopecia¹²³.

Key Points on Vitamin D for Hair Loss:

1. Telogen Effluvium (TE): Oral vitamin D3 supplementation has shown significant improvement in patients with TE. Women receiving 200,000 IU of vitamin D3 every fortnight for three months demonstrated marked improvement in hair growth¹.

2. Androgenetic Alopecia (AGA): Low serum vitamin D levels have been associated with AGA. Studies suggest that vitamin D might play a role in hair follicle regulation and could be beneficial for hair regrowth. However, further research is needed to confirm the therapeutic efficacy of vitamin D in AGA².

3. Alopecia Areata (AA): Vitamin D is known to regulate the immune system, and its receptors are strongly expressed in hair follicles. Vitamin D supplementation may help in cases of AA, where autoimmunity plays a critical role³.

4. General Hair Health: Vitamin D is essential for the growth and differentiation of keratinocytes, which are fundamental to the hair growth cycle. Deficiency in vitamin D can lead to various hair disorders⁴.

Top Vitamin D Supplements for Hair Loss

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Footnotes

1. Farah Sattar, "Efficacy of Oral Vitamin D3 Therapy in Patients Suffering from Diffuse Hair Loss (Telogen Effluvium)," PubMed, 2021. ↩ ↩²

2. Zainab Zubair, "Prevalence of Low Serum Vitamin D Levels in Patients Presenting With Androgenetic Alopecia: A Review," PubMed Central, 2021. ↩ ↩²

3. Yasmeen Jabeen Bhat, "Vitamin D Level in Alopecia Areata," PubMed Central, 2024. ↩ ↩²

4. Kriteeka Saini, "Role of vitamin D in hair loss: A short review," PubMed, 2022. ↩