January 2020 in “Publications of the UdS (Saarland University)” People with Alopecia areata often have lower Vitamin D levels.
July 2025 in “SKIN The Journal of Cutaneous Medicine” Ashwagandha may help with skin and hair issues, but more research is needed.
25 citations
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September 2014 in “Biological Research” Arctiin helps protect hair cells from damage and death caused by oxidative stress.
9 citations
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February 2016 in “Anatomical Science International” Hair proteins change location and structure as hair cells mature.
December 2014 in “CVR Journal of Science & Technology” Bhringaraj plant may help in wastewater treatment and improving drinking water quality.
March 2024 in “Jurnal Tata Rias” Ginger hair tonic can reduce hair loss and improve hair quality.
September 2001 in “PubMed” The new X-ray technique allows for precise and non-destructive measurement of elements in hair, creating the first database of its kind for a specific ethnic group.
November 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Ayurvedic treatment successfully regrew hair in a case of alopecia areata.
1 citations
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January 2007 in “AIP conference proceedings” High-resolution x-ray images showed three main structures in human hair: medulla, cortex, and cuticle.
16 citations
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January 2017 in “DOAJ (DOAJ: Directory of Open Access Journals)” Low levels of vitamin B12 and ferritin are linked to early hair graying.
3 citations
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October 2021 in “Clinica Chimica Acta” Hormone levels in hair vary across the head, with the highest concentration of a key hormone linked to hair loss at the top.
November 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Ayurveda can effectively treat alopecia areata, leading to hair regrowth.
185 citations
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June 2011 in “Molecular and cellular endocrinology” Skin cells produce and activate vitamin D, which regulates skin functions and supports hair growth.
21 citations
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December 2011 in “Chungara” Mummy hair's chemical composition may not accurately show ancient people's health due to environmental contamination.
February 2021 in “Cermin Dunia Kedokteran” Vitamin D helps protect skin from aging and can improve hair growth.
19 citations
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March 1961 in “Nature” A fatty acid/protein complex in human hair helps protect it from damage.
1 citations
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June 2021 in “International Journal of Dermatology” People with alopecia areata had lower vitamin D levels, but these levels didn't relate to many aspects of the condition.
23 citations
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June 2010 in “Journal of Investigative Dermatology” A mutation in the Soat1 gene causes hair structure defects and other health issues in AKR/J mice.
January 2025 in “Arquivo Brasileiro de Medicina Veterinária e Zootecnia” Agoutis in captivity have more resting (telogen) hairs than growing (anagen) hairs, regardless of season or gender.
January 2008 in “HAL (Le Centre pour la Communication Scientifique Directe)” The mutant HR bmh protein affects hair follicle formation by failing to repress vitamin D receptor activity.
5 citations
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January 1983 in “PubMed” Human skin releases different steroids, with some coming from sebaceous glands and others from sweat glands.
June 2025 in “Journal of Drug Delivery Science and Technology” A dissolving microneedle patch with dutasteride offers effective, long-lasting hair loss treatment with fewer side effects.
7 citations
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January 1959 in “Canadian Journal of Chemistry” Human and horse hair have similar end groups to wool and feathers.
19 citations
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March 2015 Human hair has electromagnetic properties.
2 citations
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March 2012 in “Nature Reviews Endocrinology” The body's change of testosterone into DHT is not necessary for testosterone's muscle and sexual effects.
4 citations
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April 2020 in “Journal of Cosmetic Dermatology” Low vitamin D levels are linked to different types of hair loss.
Human hair affects millimeter radiowaves due to its keratin content.
January 2014 in “한국미용학회지” UV-A radiation significantly damages semi-permanent dyed hair.
April 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Ayurvedic treatment significantly reduced symptoms of alopecia areata.
35 citations
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January 1981