January 2011 in “대한피부과학회지” A 7-year-old girl was diagnosed with trichothiodystrophy due to low sulfur levels in her hair.
January 2004 in “Weiliang yuansu yu jiankang yanjiu” Copper levels differ by gender, and young children have higher mineral levels.
January 2019 in “Menoufia Medical Journal” Lower vitamin D levels may contribute to female hair loss.
Selenium levels are similar in healthy people from both high and low NPC risk areas.
January 2025 in “International Journal of Dermatology Venereology and Leprosy Sciences” People with acne tend to have lower iron levels.
December 2013 in “대한피부과학회지” Korean women with female pattern hair loss have higher levels of ferritin, testosterone, and vitamin D than average.
2 citations
,
April 2020 in “Clinical and experimental obstetrics & gynecology” Hair levels of estradiol and progesterone are higher in premenopausal than postmenopausal women, but the difference isn't statistically significant, indicating the need for a better measurement method.
March 2026 in “Preprints.org” Plerixafor may help treat pigmentation disorders by promoting skin repigmentation.
5 citations
,
July 2014 in “Journal of X-Ray Science and Technology” Hair analysis can help diagnose cell ion channel activity and calcium deficiency.
26 citations
,
October 2011 in “Biological trace element research” Low copper levels might cause premature graying of hair.
16 citations
,
August 2000 in “Il Farmaco” Men have more tryptophan in their hair than women, and it increases with age and is higher in darker and grey or white hair.
20 citations
,
July 1990 in “Clinical and experimental dermatology” Taking cyproterone acetate and ethinyl oestradiol for hair loss can lower vitamin B12 levels in women.
10 citations
,
January 1985 in “PubMed” Trace elements like calcium, iron, and zinc are unevenly distributed in hair, while sulfur is even, and increased phosphorus and potassium levels are linked to skin reactions.
11 citations
,
March 1959 in “Journal of Histochemistry & Cytochemistry” Sulphur, phosphorus, and metals are distributed differently in animal skin follicles, with variations in detection speed and location.
2 citations
,
January 1999 in “Dermatology” December 2021 in “Egyptian Journal of Dermatology and Venereology” Oxidative stress may worsen female pattern hair loss and could help track the disease and treatment.
9 citations
,
October 1993 in “The Journal of Clinical Pharmacology” Finasteride doesn't affect antipyrine metabolism, so interactions with cytochrome P-450 enzyme drugs are unlikely.
4 citations
,
July 2019 in “IOP conference series” Most young men with early gray hair have low vitamin D but normal iron levels.
June 2019 in “Journal of Medical Sciences” Low serum ferritin levels are linked to hair loss in women.
3 citations
,
September 2017 in “Galen medical journal” Patients with psoriasis and cutaneous-oral lichen planus have higher blood homocysteine levels than healthy people.
56 citations
,
January 1999 in “The Analyst” The method accurately measures certain steroids in human hair, showing different levels in males and females.
May 2026 in “Archives of Dermatological Research” Genetics likely cause premature graying hair, not vitamin levels.
6 citations
,
June 1976 in “Journal of Investigative Dermatology”
53 citations
,
November 1997 in “Journal of Forensic Sciences” Darker hair in guinea pigs holds more codeine than lighter hair.
35 citations
,
January 2001 in “Journal of Animal Science” High dietary selenium, especially inorganic, causes weight loss and selenosis in pigs, with effects varying by hair color.
2 citations
,
March 2019 in “Experimental Techniques in Urology & Nephrology” Heptaminol may cause hair lightening in hemodialysis patients.
January 2011 in “Nuclear Techniques” Lead levels in hair increased due to environmental exposure, while iron, copper, and zinc levels stayed stable.
15 citations
,
June 1996 in “Journal of Pharmacy and Pharmacology” Caffeine levels in hair and blood can indicate liver health.
December 2024 in “Turkish Society of Clinical Biochemistry” Higher BPA levels may be linked to idiopathic hyperandrogenemia in women.
June 2017 in “Journal of clinical and investigative dermatology” Red blood cell folate levels are reliable indicators of long-term folate status in alopecia areata patients.