229 citations,
March 2001 in “European journal of endocrinology” Testosterone levels influence male behaviors and physical traits, but this relationship is complex and influenced by both internal and external factors.
162 citations,
April 2016 in “The Lancet Diabetes & Endocrinology” Testosterone therapy in transgender men has both desired effects like increased muscle mass and potential health risks such as higher cardiovascular risk.
110 citations,
January 2014 in “The Journal of Sexual Medicine” Testosterone treatment in trans men increases body and facial hair and may lead to hair loss over time, but severe skin issues are rare.
105 citations,
June 2010 in “The journal of sexual medicine” Testosterone undecanoate increases lean mass and causes various physical changes in female-to-male transsexuals.
103 citations,
June 2006 in “British journal of sports medicine” The document concludes that better biomarkers are needed to detect long-term oral testosterone use in athletes.
74 citations,
November 1975 in “Archives of dermatology” Increased DHT formation in skin can cause hair loss, acne, and excessive hair growth, and antiandrogens might treat these conditions.
72 citations,
October 1998 in “Baillière's clinical endocrinology and metabolism” Long-term testosterone therapy can cause hormone suppression, affect prostate and heart health, and alter physical characteristics, but does not increase prostate cancer risk and needs more research for full risk assessment.
71 citations,
August 2019 in “The journal of sexual medicine” Testosterone treatment effectively causes male physical development in transgender male adolescents but may lead to side effects like acne, higher BMI and blood pressure, lower good cholesterol, and decreased bone density.
66 citations,
March 1998 in “Mayo Clinic Proceedings” Removing a testosterone-producing tumor cured a woman's sleep apnea and other symptoms.
59 citations,
September 1994 in “The Journal of Clinical Endocrinology and Metabolism” Finasteride reduces scalp DHT levels, potentially treating male pattern baldness.
58 citations,
January 2006 in “Skin Pharmacology and Physiology” High levels of testosterone and 5α-DHT can lead to cell death in cells important for hair growth.
51 citations,
November 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” Beard cells, unlike scalp cells, produce growth factors in response to testosterone, which may explain differences in hair growth.
51 citations,
May 2011 in “Phytotherapy Research” Ginseng, especially red ginseng, may help regrow hair and block a hair loss-related enzyme.
49 citations,
February 2009 in “Maturitas” Short-term testosterone therapy in women seems safe with few mild side effects, but long-term effects need more research.
49 citations,
August 1996 in “The Journal of Clinical Endocrinology and Metabolism” The combination of cyproterone acetate and testosterone enanthate is highly effective in preventing sperm production and could be a good reversible male contraceptive.
45 citations,
May 2012 in “The Journal of Steroid Biochemistry and Molecular Biology” Too much AKR1C3 enzyme causes resistance to finasteride by increasing testosterone.
44 citations,
January 2007 in “Biological & pharmaceutical bulletin” Black pepper leaf extract contains compounds that can block testosterone effects and promote hair growth.
43 citations,
November 1975 in “Archives of Dermatology” Testosterone affects hair loss, acne, and excessive hair growth, and antiandrogens can help treat these conditions.
42 citations,
May 2007 in “Endocrinology and metabolism/American journal of physiology: endocrinology and metabolism” Testosterone can build muscle and bone without enlarging the prostate when a specific enzyme is blocked.
41 citations,
September 2010 in “British journal of dermatology/British journal of dermatology, Supplement” Both intense pulsed light and long-pulsed diode laser effectively reduced facial hair in women, with no significant difference in satisfaction after 6 months, but intense pulsed light was more painful.
39 citations,
January 2019 in “The World Journal of Men's Health” Testosterone replacement therapy can prevent men from fathering children and should not be used by those wanting to stay fertile.
39 citations,
November 2021 in “Clinical Endocrinology” Testosterone replacement is recommended for men with low testosterone levels and symptoms of hypogonadism.
38 citations,
January 2002 in “Biological & Pharmaceutical Bulletin” Lygodii Spora extract may help treat hair loss by blocking a hair loss-related enzyme and promoting hair growth.
37 citations,
January 2015 in “Evidence-based Complementary and Alternative Medicine” An extract from Quercus acutissima bark was found to reduce sebum production and block an enzyme linked to acne.
36 citations,
January 2014 in “The Journal of Sexual Medicine” Testosterone may help increase sexual events for women with low libido due to antidepressants.
36 citations,
October 2009 in “Journal of Investigative Dermatology” Dihydrotestosterone can be made from dehydroepiandrosterone in skin cells without needing testosterone.
34 citations,
August 2011 in “Journal of Natural Medicines” Puerariae Flos extract may help treat hair loss by blocking a hair loss-related enzyme and promoting hair growth.
34 citations,
February 1993 in “Journal of steroid biochemistry and molecular biology/The Journal of steroid biochemistry and molecular biology” Certain 4-azasteroids are effective at blocking the enzyme that processes testosterone in human skin and could help treat acne, excessive hair growth, and male pattern baldness.
33 citations,
September 2017 in “Molecules” Red ginseng oil and its components help promote hair regrowth and could treat hair loss.
33 citations,
January 1997 in “Endocrinology” Testosterone can slow down hair growth when combined with certain cells from bald scalps, and this effect can be blocked by an androgen receptor blocker.