176 citations
,
August 2000 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” Hormone treatments in transsexual individuals reduce hair growth and oil production in male-to-females and increase them in female-to-males.
159 citations
,
December 2007 in “American Journal of Pathology” Stress-related substance P may lead to hair loss and negatively affect hair growth.
98 citations
,
February 2007 in “Seminars in Cell & Developmental Biology” Androgens can both stimulate and cause hair loss, and understanding their effects is key to treating hair disorders.
97 citations
,
March 2009 in “Dermato-endocrinology” Hormones significantly affect hair and oil gland function in the skin, and more research is needed on skin-related hormone disorders.
66 citations
,
July 2015 in “Journal of Molecular Biology” The document concludes that for hair and feather growth, it's better to target the environment around stem cells than the cells themselves.
59 citations
,
August 1998 in “International Journal of Dermatology” Genetics and hormones cause hair loss; finasteride treats it safely.
26 citations
,
February 1998 in “Chemico-Biological Interactions” Scientists identified three genes important for processing certain brain chemicals, thyroid hormones, and medications.
21 citations
,
January 2017 in “MethodsX” Methanol is better than isopropanol for washing grizzly bear hair to measure cortisol.
14 citations
,
December 2021 in “International journal of molecular sciences” Growth hormone levels affect hair growth and loss, with too much causing excess hair and too little leading to hair loss.
13 citations
,
May 2021 in “FASEB bioAdvances” Plant-based products can improve hair and skin health without harmful side effects.
6 citations
,
April 2019 in “Endocrinology and Metabolism Clinics of North America” Testosterone therapy for transmasculine individuals is generally safe with medical supervision, improves mental health, and has mixed effects on physical health.
3 citations
,
March 2021 in “Metabolites” Hair loss causes differ between men and women due to changes in hormone levels and inflammation-related pathways.
October 2025 in “Diseases” Women with hair loss often have deficiencies in iron, vitamins, minerals, and lower thyroid function, suggesting the need for nutritional and hormonal treatment.
July 2019 in “Acta Scientiae Veterinariae” Removing a testicular tumor in a dog reduced its aggressive behavior and skin problems.
January 2017 in “STARS (University of Central Florida)” Steroid hormones can be preserved in ancient hair, revealing insights into past health and fertility.
September 2014 in “Springer eBooks” Men and women experience skin aging differently due to changes in sex hormone levels with age.
95 citations
,
August 2013 in “Journal of Investigative Dermatology” HPT axis hormones boost mitochondrial function and growth in hair follicles, potentially aiding hair health.
24 citations
,
September 2014 in “PloS one” Thyroid hormone receptors are essential for hair growth and wound healing.
77 citations
,
March 2021 in “Nature” Stress hormone corticosterone blocks a growth factor to slow down hair stem cell activity and hair growth.
56 citations
,
November 2010 in “Pigment Cell & Melanoma Research” Brain hormones significantly affect hair color and could potentially be used to prevent or reverse grey hair.
42 citations
,
March 2008 in “Molecular and Cellular Endocrinology” Hormones and neuroendocrine factors control hair growth and color, and more research could lead to new hair treatment options.
32 citations
,
March 2021 in “Journal of endocrinological investigation” Thyroid hormones are important for skin health and changes in them can affect conditions like hair loss and eczema.
20 citations
,
September 2013 in “Anti-Cancer Drugs” PTH-CBD could help prevent and treat hair loss caused by chemotherapy in mice.
8 citations
,
January 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” Growth hormone is important for regulating human hair growth.
4 citations
,
June 2025 in “JMIR Formative Research” Hair cortisol concentration may reflect some physiological stress but doesn't strongly correlate with perceived stress.
October 2025 in “Journal of Veterinary Diagnostic Investigation” Black hair in cats has higher cortisol levels than white hair.
August 2023 in “Clinical Endocrinology and Metabolism” Balancing hormones can help women feel youthful and healthy.
January 2023 in “Mastology” Hormone therapy for breast cancer often leads to sexual issues like vaginal dryness and decreased libido.
October 2022 in “Southeast Asian journal of health professionals” Hair greying is seen as a sign of aging; temporary fixes like hair dye are used, but a balanced diet and hair care can help manage it.
December 2025 in “Neurobiology of Stress” People who recently attempted suicide during depression showed signs of adrenal fatigue, but had higher DHEA levels around the attempt time.