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January 1971 in “Acta dermato-venereologica” Mice hair follicles take in the amino acid cystine.
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January 2014 in “International Journal of Trichology” A patient with a rare hair condition and skin disorder showed hair improvement after treatment.
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April 1971 in “American Journal of Clinical Nutrition” Lack of protein causes hair root damage, but it can be reversed by eating protein again.
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July 1985 in “Journal of the American Academy of Dermatology” Biotin improved hair growth and combability in one child with uncombable hair syndrome.
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March 1981 in “International Journal of Dermatology” External factors like certain shampoos, bacterial infections, and parasites might cause hair defects similar to genetic conditions.
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June 1991 in “Journal of Inherited Metabolic Disease” Selenium deficiency caused symptoms in a child, which improved with selenium supplements.
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April 2018 in “The journal of pediatrics/The Journal of pediatrics” A 6-year-old girl's inability to grow her hair long was due to Loose Anagen Hair Syndrome, which causes hair to shed easily and may improve with age.
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June 1947 in “Analytical Chemistry” Cold waving solutions quickly reduce cystine to cysteine in hair.
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July 1980 in “PubMed” CF patients with growth issues have more zinc in their hair than those with normal growth.
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October 1970 in “Archives of disease in childhood” Hair amino acid levels can indicate metabolic disorders.
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December 1965 in “The Lancet” Argininosuccinic aciduria can cause hair loss.
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June 2018 in “Journal of the American Academy of Dermatology” The document suggests finding a simpler, cheaper way to diagnose Uncombable Hair Syndrome.
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October 1980 in “Archives of Dermatology” Vitamin deficiencies, especially biotin and vitamin D, can cause hair loss.
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March 2016 in “PLoS ONE” The patient's hair was thinner and had fewer lipids due to a genetic mutation.
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October 2020 in “IP Indian journal of clinical and experimental dermatology” Low serum ferritin levels are significantly linked to diffuse hair loss.
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February 2005 in “Journal of Investigative Dermatology” Overexpression of SSAT causes hair loss and skin issues, but reducing putrescine can help.
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January 1988 Hair follicles have unique proteins that vary by species and are influenced by nutrition.
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July 2006 in “Contact dermatitis” Ammonium bisulfite in hair bleach can cause facial eczema.
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February 1987 in “Journal of the American Academy of Dermatology” The hair cuticle acts as a barrier against fungal infection, which occurs only deep within the hair follicle.
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July 2014 in “Journal of X-Ray Science and Technology” Hair analysis can help diagnose cell ion channel activity and calcium deficiency.
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December 2021 in “Animals” Low zinc and selenium levels in sheep are linked to hair loss and thyroid problems.
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August 2010 in “PLoS ONE” Selenoproteins are crucial for healthy skin and hair.