For men, a "normal" adult reading falls anywhere upwards of 0.30 nmol/l, with the optimal range above 0.45 nmol/l. Testosterone levels are measured through blood tests, and in the UK, measured in nanomoles per litre (nmol/l). If you are unsure, a blood test can identify if your testosterone is low. In which case, testosterone supplements or testosterone replacement therapy may not resolve them. Along with testosterone boosters, there are plenty of natural ways to pep up your T-levels with diet, exercise and other lifestyle changes. Testosterone boosters can be found in safe, legal places, like your local chemist or hormone therapy clinics. If any of these conditions sound familiar, have you considered that your troubles aren’t just a natural consequence of ageing, but are instead caused by dwindling testosterone? Below is a chart representing the normal range for female testosterone levels by age and ng/dL. In a 2021 study, zinc supplementation increased testosterone levels and improved sexual function in postmenopausal women with low blood levels of zinc. For men with low blood testosterone levels and symptoms most likely caused by a low level, the benefits of hormone replacement therapy usually outweigh potential risks. While there’s a clinical reference on "healthy" levels of testosterone, there’s no established information on the optimal range to diagnose abnormal levels in women. To measure testosterone levels, a woman can have a testosterone blood test ordered by a healthcare provider, such as a primary care physician, OB-GYN, or endocrinologist. Testosterone therapy is approved for the treatment of delayed male puberty and abnormally low production of testosterone secondary to malfunction of the testes, pituitary or hypothalamus. Estrogen therapy increases sex hormone binding globulin and, like aging men, this reduces the amount of free, active testosterone in the body. Normal levels of testosterone may be achievable with hormone therapy and lifestyle adjustments. If a woman has symptoms of high or low testosterone, it’s recommended that she visit a healthcare provider to get further testing and a diagnosis. Only a testosterone test can measure how much of the hormone is in your body and determine whether your level is within a healthy range. It's normal for testosterone levels to decrease with age. Most testosterone levels tests involve a blood draw in a medical setting. For females over age 19 years, it’s between 15 ng/dL and 70 ng/dL. If you have a hard time with needles or blood samples, a saliva test may be an alternative. Your doctor can help confirm the results, or they may order additional tests to understand what factors could be causing your low or high hormone levels. For adult females, testosterone is generally between 15 ng/dL and 70 ng/dL. This can be lower for males who are around age 35 years and older.
