567 citations
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October 2007 in “Clinical and investigative medicine” Hair cortisol can be used to measure long-term stress exposure.
189 citations
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January 2014 in “Journal of Visualized Experiments” Hair cortisol analysis effectively measures long-term stress.
December 2025 in “Therapeutic Drug Monitoring” Pulverization extracts more cortisol from hair, but any method works due to individual differences.
101 citations
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January 2014 in “Journal of Visualized Experiments” The method effectively measures long-term stress levels using hair samples.
5 citations
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April 2022 in “Journal of Chromatography B” The new method can measure sleep-related hormones in hair effectively and could help track long-term sleep patterns.
Hair cortisol content can indicate cortisol exposure and varies with age, puberty, and BMI in youth.
Hair cortisol levels can effectively indicate long-term hormone activity.
September 2024 in “Toxicology Letters” Cortisone and cortisol levels in pregnant women’s hair increase as labor approaches, indicating higher stress.
May 2021 in “Journal of the Endocrine Society” A patient produced cortisol after adrenalectomy, possibly due to residual tissue or other body parts making steroids.
January 2026 in “Open MIND” July 2020 in “Endocrine practice” A 13-year-old boy with Cushing syndrome has high cortisol levels from a pituitary gland issue and underdeveloped sexual characteristics.
February 2017 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Hair cortisol measurement is a promising, non-invasive tool for monitoring cortisol exposure over time.
May 2026 in “Microchemical Journal” 2 citations
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January 2009 The procedure reliably measures cortisol in rhesus macaque hair.
January 2026 in “Open Science Framework” April 2020 in “Journal of the Endocrine Society” Hair cortisol measurement can help diagnose and monitor Cushing’s disease.
December 2019 in “Case Medical Research” 44 citations
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February 2016 in “Zoology” Hair cortisol levels in primates are useful for stress assessment but vary by age, sex, species, and hair collection methods.
43 citations
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January 1999 in “Endocrinology” Cortisol increases a specific protein in bone cells, which may help explain its negative effects on bone.
217 citations
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July 2009 in “Experimental and Clinical Endocrinology & Diabetes” Hair analysis can track past cortisol levels in Cushing's Syndrome patients.
Measuring cortisol in hair can help assess adrenal function in asthmatic children using inhaled corticosteroids.
February 2020 in “VSNU Open Access deal” Hair cortisol levels change with age, starting high at birth, decreasing until age 6, then rising to adult levels by age 18.
489 citations
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June 2005 in “The FASEB Journal” Human hair follicles can produce cortisol like the body's stress response system.
May 2012 in “Neurotoxicology and Teratology” Hair cortisol can be a reliable way to measure long-term stress.
3 citations
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January 2012 Hair cortisol analysis shows sweat affects cortisol levels, and severe OSA may increase stress, but CPAP treatment doesn't significantly reduce physiological stress.
2 citations
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December 2021 in “Scientific reports” Scalp hair sweating is a significant predictor of hair cortisol levels.
122 citations
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October 2010 in “Clinica Chimica Acta” Washing hair with water or shampoo lowers cortisol levels in hair.
July 2011 in “Neurotoxicology and Teratology”
December 2025 in “Biology Bulletin Reviews” Hair cortisol can indicate animal stress but varies with many factors.
30 citations
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July 2016 in “Psychoneuroendocrinology”