72 citations
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October 2010 in “Journal of The American Academy of Dermatology” Iron deficiency common in women, not always linked to hair loss; more research needed.
24 citations
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January 2001 in “International Journal of Cancer” Permanent hair dye use may increase bladder cancer risk, especially in female smokers with certain genetic traits.
October 2024 in “Photodermatology Photoimmunology & Photomedicine” Red LED therapy is more effective than green LED for improving hair growth in androgenetic alopecia.
7 citations
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March 1931 in “Experimental Biology and Medicine” Iron deficiency causes hair loss in white rats and mice.
Iron deficiency can cause hair loss, but iron supplements can help restore hair growth.
3 citations
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December 2024 in “International Journal of Dermatology” Premature hair graying is caused by genetics, stress, and lifestyle, and affects mental health.
8 citations
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January 2009 in “Journal of pediatric endocrinology & metabolism/Journal of pediatric endocrinology and metabolism” A specific thyroid hormone resistance mutation may be linked to different types of hair loss.
November 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Identifying and treating deficiencies and conditions can stop or reverse premature greying in children.
May 2023 in “Health science reports” Coloring shampoos for gray hair may cause gene mutation, reproductive issues, and skin damage, needing stricter regulation and expert consultation.
June 2009 in “Pigment Cell & Melanoma Research” Preventing hair graying may be possible by managing oxidative stress and activating melanocyte stem cells.
5 citations
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June 2015 in “Journal of dermatology” A woman and her daughter had thallium poisoning from a herbal drink and rodenticide, causing hair loss and other symptoms.
1 citations
,
November 2019 in “International Journal of Women's Dermatology” Ketoconazole shampoo can cause rare pink hair discoloration.
5 citations
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July 2017 in “International journal of endocrinology and metabolism/International journal of endocrinology and metabolism.” Two siblings with a genetic mutation had a form of rickets that doesn't respond to vitamin D.
November 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Identifying and treating deficiencies and conditions can stop or reverse premature greying in children.
44 citations
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April 1979 in “Journal of Ultrastructure Research”
23 citations
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August 2017 in “Scientific Reports” Darker hair may lead to higher cortisol readings, suggesting a need to adjust for hair color in studies.
20 citations
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June 2011 in “ISRN Dermatology (Print)” A woman lost most of her hair due to an allergic reaction to a hair dye ingredient.
2 citations
,
October 2021 in “bioRxiv (Cold Spring Harbor Laboratory)” Lemur hair color and density vary by environment, supporting theories on primate hair evolution.
March 2026 in “Dyes and Pigments” Riboflavin and blue light speed up genipin hair dye, making it fast, glossy, stable, and eco-friendly.
February 2013 in “Journal of the American Academy of Dermatology” Iron supplements may reverse premature hair graying caused by iron deficiency.
178 citations
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October 2001 in “Genes & Development” The mutated hairless gene causes hair loss by acting as a new type of corepressor affecting thyroid hormone receptors.
17 citations
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June 2012 in “The Anatolian journal of cardiology” Premature hair graying may be a sign of increased risk for heart disease, indicating biological age is more important than actual age.
April 2015 in “Dentistry 3000” Premature hair graying in the face may be influenced by genetics and environment.
3 citations
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January 2011 in “生物医学研究杂志:英文版” A new mutation in the KRT86 gene causes monilethrix in a Han family.
3 citations
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March 2021 in “Cureus” A rare combination of halo nevi, nonsegmental vitiligo, and early gray hair can occur together.
December 2025 in “Sustainable Chemistry One World” Mangosteen waste can be used as an eco-friendly natural hair dye, producing a lasting reddish color and strengthening hair.
16 citations
,
January 2018 in “International journal of trichology” Genetics and nutritional deficiencies are key factors in premature graying of hair.
June 2025 in “BMJ Case Reports” Axitinib treatment turned a man's grey hair back to black.
September 2022 in “bioRxiv (Cold Spring Harbor Laboratory)” A new staining method shows a special area in the hair's skin layer with lots of proteoglycans.
January 1998 in “The Nishinihon Journal of Dermatology” A 7-year-old girl was diagnosed with Netherton's Syndrome, shown by skin and hair symptoms.