November 1983 in “American Biology Teacher” Pattern baldness is likely caused by a dominant gene influenced by testosterone levels, making it more common in men.
18 citations,
May 1992 in “American Journal of Biological Anthropology” Higher androgen levels do not cause baldness in men.
27 citations,
April 2013 in “Reviews in endocrine and metabolic disorders” The document concludes that using LC-MS/MS for measuring androgens is more accurate than older methods, but it needs careful validation and standardized references to be most effective.
July 2022 in “Research Square (Research Square)” Hair analysis can somewhat track past testosterone levels but is influenced by factors like hair washing, growth rate, sex, and hair color.
September 2023 in “Scientific reports” Segmental hair analysis can track testosterone over time but needs adjustments for sex, hair color, and washing frequency.