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    Glossary Hair Cortisol Concentration

    amount of cortisol embedded in hair strands over time

    Hair Cortisol Concentration (HCC) refers to the amount of cortisol, a stress hormone, that is embedded in hair strands over time. Unlike blood or saliva tests that measure cortisol levels at a single point, HCC provides a long-term record of an individual's stress levels, as hair grows approximately 1 cm per month and can reflect cortisol exposure over several months. This makes it a valuable tool for both researchers and clinicians in assessing chronic stress and related health conditions.

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    Research 10 of 1000+

    1. Quantifying long-term stress in brown bears with the hair cortisol concentration: a biomarker that may be confounded by rapid changes in response to capture and handling Conservation Physiology · 2014 · 90 citations
    2. Hair cortisol concentrations in mental disorders: A systematic review Physiology & behavior · 2020 · 50 citations
    3. Hair dyeing, hair washing and hair cortisol concentrations among women from the healthy start study Psychoneuroendocrinology · 2017 · 33 citations
    4. Hair cortisol concentration and glycated hemoglobin in African American adults Psychoneuroendocrinology · 2016 · 30 citations
    5. Hair Cortisol Concentration in Healthy Children and Adolescents Is Related to Puberty, Age, Gender, and Body Mass Index Hormone Research in Paediatrics · 2019 · 24 citations
    6. HPA axis stress reactivity and hair cortisol concentrations in recently detoxified alcoholics and healthy controls with and without childhood maltreatment Addiction Biology · 2018 · 24 citations
    7. Hair Cortisol Concentrations in Adolescent Girls with Anorexia Nervosa are Lower Compared to Healthy and Psychiatric Controls European Eating Disorders Review · 2016 · 22 citations
    8. Comparison of methanol and isopropanol as wash solvents for determination of hair cortisol concentration in grizzly bears and polar bears MethodsX · 2017 · 21 citations
    9. Hair Cortisol Concentrations Are Associated with Hair Growth Rate NeuroImmunoModulation · 2016 · 21 citations
    10. Is it getting in the hair? – Cortisol concentrations in native, regrown and segmented hairs of cattle and pigs after repeated ACTH administrations General and comparative endocrinology · 2020 · 19 citations
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    Community 10 of 1000+

    1. Ray Peat: Testosterone Isn’t the Culprit, Prolactin and Cortisol Drive Hair Loss (2016) Reddit · 23 Oct 2025
    2. Low cortisol it is due the fin Reddit · 19 Jul 2025
    3. I have not seen a single person who claims dutasteride destroyed their hair post a picture of the before/after Reddit · 30 Apr 2024
    4. The ending of alopecia? Corticosterone inhibits GAS6 to govern hair follicle stem-cell quiescence Reddit · 30 Oct 2021
    5. No luck with meds, Check your Cortisol. Reddit · 9 Aug 2024
    6. High Estrogen causing hair loss? Reddit · 27 Aug 2023
    7. Neck tension, and hair loss, I am 100 percent sure that there is a connection Reddit · 14 May 2024
    8. Stress supplements that do not increase shedding? Reddit · 8 Nov 2025
    9. Need help bros 2.5mg Dut/RU/min ISNT enough Reddit · 26 Aug 2024
    10. Suddenly developed rash after 3-years Kirkland minoxidil Foam use. Changed ingredients? Reddit · 3 Jun 2024
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    Learn 1 of 61

    1. Hydrocortisone Mild corticosteroid used on the skin and scalp
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