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research Measurement of Cortisol and Testosterone in Hair of Obese and Non-Obese Human Subjects

50 citations , June 2014 in “Experimental and Clinical Endocrinology & Diabetes”

This study found that hair cortisol levels increase and testosterone levels decrease with obesity, suggesting that measuring hormones in hair may be a valuable tool in obesity research and clinical practice.

research Children’s hair cortisol and hair testosterone concentrations in response to environmental changes: from summer holidays to school

3 citations , November 2021 in “Stress”

This study found that school-related stress increases hair cortisol in girls and alters hair testosterone and cortisol levels in boys, indicating gender-specific hormonal responses to environmental changes.

research Testosterone Analysis in Hair

October 2022 in “Linköping University medical dissertations”

This abstract only provides a list of abbreviations and does not report any new research findings or results.

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 Segmental hair analysis - a retrospective testosterone diary?

July 2022 in “Research Square (Research Square)”

This study found that hair testosterone concentrations show some consistency over time, but factors like hair washing and individual growth rates influence these levels, suggesting the need for careful sampling and analysis adjustments.

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Community Join

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community Can testosterone alone cause hair loss even after nuking DHT?

in Research/Science 26 upvotes 8 months ago

Testosterone can still cause hair loss even when DHT is blocked by dutasteride, especially if hair follicles are sensitive. Topical treatments like RU58841 or pyrilutamide may help, but their long-term effectiveness is uncertain compared to dutasteride.

community Impact of Testosterone on Hair Loss with Dutasteride Treatment at Norwood 3

in Basic Questions 48 upvotes 2 months ago

Taking testosterone may still lead to hair loss even with dutasteride and minoxidil. Results can vary, and some may not see hair growth despite using these treatments.

community Hair regrow idea: High dose Testosterone + RU58841

in Satire 2 upvotes 4 months ago

Using high doses of testosterone with RU58841 to create an androgen-free environment for hair regrowth is suggested, but concerns about heart health and the effectiveness of this approach are raised. Alternatives like topical estrogen, progesterone, and other treatments like finasteride and dutasteride are discussed.

community Scalp testosterone does NOT cause hair loss, what is this baseless claim ?

in Research/Science 13 upvotes 6 months ago

DHT, not testosterone, causes hair loss. Treatments like finasteride, dutasteride, and RU58841 target DHT to manage hair loss.

community Akkermansia improves testosterone-induced hair growth inhibition.

4 upvotes 2 years ago

Akkermansia bacteria can improve hair growth inhibited by testosterone, and metformin may increase Akkermansia, which could help with hair loss related to aging, insulin resistance, and inflammation.

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Learn

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learn Bicalutamide

Nonsteroidal anti-androgen, originally a prostate cancer drug

Could bicalutamide help trans women regrow hair lost to testosterone? No study has tested bicalutamide for hair regrowth in trans women. In cisgender women the only randomized trial found it added nothing to minoxidil, and it is an off-label prescription drug that requires liver monitoring.

learn Estradiol

Does Estradiol only stop hair loss, or can it also help regrow hair? There is no good evidence that estradiol regrows hair on its own. Regrowth in trans women on testosterone-lowering therapy is described in case reports only.

learn Caffeine

Stimulant used in hair shampoos and lotions

learn Rosemary

Herb whose oil is used in hair care

learn Finasteride

Popular 5-alpha reductase inhibitor that lowers DHT, taken as a pill or used topically

learn Dutasteride

5-alpha reductase inhibitor that blocks both enzyme types, a stronger DHT blocker than finasteride

learn Hair Fibers

Do hair fibers really make thinning hair look fuller, or is it just an illusion? Hair fibers create an optical illusion of fullness but do not actually thicken hair.
How do you apply hair fibers correctly so they stay in place all day? Apply hair fibers to clean, dry hair and use a setting spray for better hold.
Can hair fibers be used along with medical treatments like minoxidil or finasteride? Hair fibers have no known interaction with minoxidil or finasteride, but no study has tested the combination.

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Clinics

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Experts

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SMP Specialist
Hairo Fallas
Newark, NJ, United States

Hairo Fallas