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research Association Between Hair Cortisol Levels AndKeratoconus: A Prospective Study

March 2026

This study found that in the Jordanian population, elevated cortisol levels were significantly associated with progressive keratoconus, whereas lower cortisol levels were linked to stable disease, suggesting cortisol may be a potential biomarker for monitoring keratoconus progression.

research Curvilinear association between loneliness and hair cortisol concentrations in community-dwelling older adults at elevated cardiovascular risk

June 2026 in “Comprehensive Psychoneuroendocrinology”

In this study, researchers observed a curvilinear relationship between loneliness and hair cortisol concentration among older adults at elevated cardiovascular risk, with cortisol levels higher at low-to-moderate loneliness and lower at higher loneliness, though results were sensitive to some data exclusions.

research Cutaneous Manifestations of Endocrine Disease

4 citations , November 2019 in “Harper's Textbook of Pediatric Dermatology”

This article reviews the skin, hair, nail, and mucosal changes linked to various pediatric endocrine disorders but provides no new clinical findings.

research The Effects of Single Testosterone Administration and Stress Induction on Steroid Hormone Levels in Hair

November 2024 in “Psychoneuroendocrinology”

This study found that hair steroid analysis effectively detected increased hormone levels from both a single testosterone dose and laboratory-induced stress, revealing individual context factors like relationship status also impact hair hormone concentrations.

research Hair cortisol in drug-naïve first-episode individuals with psychosis

23 citations , January 2016 in “Brazilian Journal of Psychiatry”

This study observed that drug-naïve first-episode psychosis patients had higher hair cortisol concentrations than healthy controls, and these concentrations correlated with the severity of psychopathology.

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community No luck with meds, Check your Cortisol.

in Treatment 33 upvotes 2 years ago

Cortisol from stress can cause hair loss. Controlling cortisol levels improved the effectiveness of finasteride for hair regrowth.

community Ray Peat: Testosterone Isn’t the Culprit, Prolactin and Cortisol Drive Hair Loss (2016)

in Research/Science 110 upvotes 10 months ago

Prolactin and cortisol are identified as key factors in hair loss, with stress hormones impacting hair shedding. Finasteride and minoxidil are effective treatments, while DHT's role and individual sensitivity are significant factors.

community Anyone experienced weight gain on dutasteride?

5 upvotes 4 years ago

Dutasteride can lead to increased cholesterol and liver fat. The user is reconsidering its use due to high cholesterol and lipid levels despite a healthy lifestyle.

community High Estrogen causing hair loss?

16 upvotes 3 years ago

A 24-year-old male using topical finasteride for hair loss is experiencing thinning despite treatment and has high estrogen levels. He is seeking advice on whether high estrogen could be causing hair loss and how others with high estrogen levels have addressed it.

community Lost ground on Dut, Min, RU, etc (5 yrs… 2021->2026)

16 upvotes 5 months ago

The user has been using a combination of treatments including Dutasteride, Minoxidil, RU58841, ketoconazole shampoo, microneedling, and low-level laser therapy to address hair loss but continues to experience shedding and density loss. Despite high testosterone and iron levels, the user is frustrated with the lack of improvement and is considering adjusting treatment or exploring other options like a hair transplant.

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