November 2022 in “Journal of Investigative Dermatology” Occipital hair follicles in male pattern baldness respond uniquely to testosterone, not androgen-insensitive.
June 2021 in “Archives of Advances in Biosciences” Finasteride reduces sperm count and quality and alters hormone levels in mice.
December 2020 in “Journal of Skin and Sexually Transmitted Diseases” No strong link between testosterone or DHEAS levels and acne or hair loss in females.
Dutasteride and finasteride can change hair growth genes, helping treat hair loss.
November 2017 in “Reactions Weekly” Testosterone undecanoate caused hair loss; finasteride improved it but caused stomach issues for one patient.
August 1993 in “Journal of Dermatological Science” Testosterone metabolism in balding scalp cells may not be the main cause of hair loss.
July 2021 in “British Journal of Dermatology” Low testosterone levels may contribute to female pattern hair loss in men.
56 citations,
October 1983 in “Archives of Dermatology” Some women with acne have higher levels of free testosterone, which might suggest using hormonal treatments for acne.
43 citations,
January 2007 in “Gynecological Endocrinology” Finasteride improves acne and hair loss in women with normal testosterone.
37 citations,
September 2018 in “The Journal of Clinical Endocrinology and Metabolism” Intravaginal testosterone cream improves sexual satisfaction and reduces vaginal discomfort in postmenopausal women on breast cancer treatment without affecting hormone levels.
11 citations,
October 1994 in “The Journal of Clinical Endocrinology and Metabolism” Finasteride increases hair growth, prolongs hair cycle, and lowers dihydrotestosterone levels.
9 citations,
February 2020 in “International Journal of Endocrinology” Some men with early hair loss may have a male version of PCOS, affecting hormones and increasing health risks.
6 citations,
November 1980 in “Clinical Endocrinology” Measuring plasma testosterone glucosiduronate is a reliable way to detect high male hormone levels in women.
Higher free testosterone levels can increase bone density and decrease body fat but may raise the risk of prostate cancer, hair loss, and benign prostate enlargement.
3 citations,
November 2021 in “Stress” Girls had higher stress hormone levels during school due to social and emotional issues, while boys had higher overall hormone levels with slight changes when school started.
April 2022 in “International journal of respiratory and pulmonary medicine” People with lower levels of free testosterone tend to have worse COVID-19 outcomes.
May 2022 in “Reactions Weekly” 
May 2013 in “Journal of the Egyptian Women's Dermatologic Society (Print)” High aldosterone and free testosterone levels link to female hair loss; testing aldosterone may predict hypertension risk.
21 citations,
January 1999 in “Endocrine” 12 citations,
February 1975 in “Journal of Steroid Biochemistry” 
February 2017 in “The Journal of Sexual Medicine” Long-term testosterone treatment helps men with low testosterone levels lose weight.
31 citations,
January 2001 in “PubMed” 
21 citations,
April 2011 in “Physiological Research” Normal levels of DHT can reduce belly fat and increase muscle, but too much can lead to hair loss, prostate issues, and possibly heart disease.
April 2024 in “JCEM case reports” A woman's rare benign tumor that released both cortisol and testosterone was successfully removed, improving her health.
September 1978 in “Journal of steroid biochemistry/Journal of Steroid Biochemistry” January 2023 in “Iranian Journal of Pharmaceutical Research” Stauntonia hexaphylla extract can help treat hair loss by blocking certain hormones.
61 citations,
September 1994 in “The Journal of Clinical Endocrinology and Metabolism”