324 citations
,
July 2020 in “Applied Water Science” Water near Abakaliki mines has high toxic metal levels, posing health risks.
5 citations
,
August 2018 in “Sexual Medicine Reviews” 5α-Reductase inhibitors do not consistently increase testosterone levels in the blood.
37 citations
,
March 2014 in “Journal of Trace Elements in Medicine and Biology” Lower hair zinc and copper levels found in Turkish males with hair loss; higher BMI linked to less hair zinc.
7 citations
,
January 2016 in “Hair therapy & transplantation” People with early graying hair often have lower levels of iron, ferritin, and calcium.
December 2023 in “Migration letters” Herbal treatments can help manage PCOS symptoms.
35 citations
,
May 2020 in “Frontiers in Pharmacology” Different drugs for prostate-related urinary symptoms work but have various side effects, and treatment should be tailored to the individual.
February 2025 in “Animals” Amino acid-complexed trace minerals improve hair quality and activity in senior dogs.
21 citations
,
September 2017 in “Journal of Obstetrics and Gynaecology Research” Chromium supplements don't improve insulin, hormone levels, or cholesterol in women with PCOS but raise testosterone levels.
8 citations
,
July 2022 in “Metabolites” Higher uric acid levels are linked to fewer urinary symptoms in healthy Korean men.
109 citations
,
January 1980 in “Science of the total environment” Analyzing trace elements in human hair is complex and needs a standardized method.
June 2024 in “Research Square (Research Square)” Copper deficiency is linked to post-COVID-19 hair loss in women.
4 citations
,
January 2020 in “Skin appendage disorders” Toxic metals can cause hair loss and should be considered by doctors.
73 citations
,
May 1976 in “JAMA” Long-term parenteral nutrition without zinc can cause severe zinc deficiency.
4 citations
,
February 2019 in “Biological Trace Element Research” Chromium salts may help with insulin sensitivity in PCOS, but more research is needed to confirm their overall effectiveness and safety.
67 citations
,
January 2007 in “Environmental health perspectives” A woman's health issues were caused by arsenic poisoning from kelp supplements.
April 2023 in “Acta Poloniae Pharmaceutica” Herbal extract shampoo increased certain minerals in hair and improved hair growth and scalp health.
3 citations
,
May 2023 in “Clinical drug investigation” JAK inhibitors for alopecia areata are linked to minor side effects like headache and acne, but not to an increased risk of serious adverse events.
November 2025 in “Biological Trace Element Research” Hair mineral analysis doesn't reliably show blood mineral levels but may help track long-term mineral trends.
2 citations
,
October 2025 in “Frontiers in Medicine” Deuruxolitinib effectively improves hair regrowth in alopecia areata but requires monitoring for side effects.
3 citations
,
February 2016 in “Majallah-i dānishgāh-i ̒ulūm-i pizishkī-i Māzandarān/Journal of Mazandaran University of Medical Sciences” Some Kohl products in Iran have concerning heavy metal levels, needing stricter regulation.
October 2024 in “Frontiers in Nutrition” Vitamin D deficiency is common in people with certain types of hair loss, like alopecia areata and female pattern hair loss.
15 citations
,
July 2016 in “Urologic Clinics of North America” Finasteride and dutasteride are effective for long-term treatment of enlarged prostates but have sexual side effects and a risk of high-grade prostate cancer.
February 2024 in “Research Square (Research Square)” People today have lower levels of arsenic, lead, cadmium, and iron in their hair than people did 100 years ago.
13 citations
,
January 2015 in “International Journal of Trichology” Higher lead and cadmium, and lower zinc and iron levels in the blood might be linked to chronic hair loss in women.
19 citations
,
March 2021 in “Obesity surgery” Many people experience hair loss after weight loss surgery, especially younger women, and it's linked to lower levels of zinc, folic acid, and ferritin.
1 citations
,
June 2025 in “Environmental Research” Most women had adequate essential elements except zinc, and lead levels were higher in peri-/post-menopausal women.
July 2022 in “Research Square (Research Square)” Hair analysis can somewhat track past testosterone levels but is influenced by factors like hair washing, growth rate, sex, and hair color.
65 citations
,
August 2016 in “Metabolic brain disease” Children with autism have lower levels of essential and toxic trace elements in their hair.
January 2022 in “Bio web of conferences/BIO web of conferences” The conclusion is that normal trace element levels in newborn calves' hair are between the 25th and 75th percentiles, and levels outside this may indicate diselementosis.
1 citations
,
February 2024 in “International Journal of Physics Research and Applications” Powdered milk in Senegal has varying heavy metal levels, with some exceeding safety limits, needing more regulation.