Source- Abbott Alinity i 2nd Generation Testosterone kit insert (Ref 07P68 June 2017).
Adult Males: 8.0 - 30.0 nmol/L
Adult Females: 0.4 - 2.0 nmol/L
Studies show testosterone levels in women falling with age. This process starts before the menopause and continues further after the menopause (Yeap et al. JCEM 97: 408-415, 2012). In healthy older men testosterone levels also drop mildly with age (Yeap et al. JCEM 97: 4030-4039, 2012).