9 Evidence-Based Facts About Testosterone Therapy for Women in Menopause That Go Beyond Libido
The thing that gets me is how many women are handed an antidepressant or told to 'get more sleep' when what they actually have is a testosterone level that's fallen off a cliff. It took years for the conversation around estrogen to become mainstream — testosterone for women is at least a decade behind that, and women are paying the price in ways they can't even name.
Learn more about Rose →Testosterone declines significantly before menopause even begins
Women's testosterone levels peak in their twenties and fall steadily through their thirties and forties, meaning many women enter perimenopause already running low. By the time periods stop, some women have lost up to half their peak testosterone production. This early, gradual decline explains why symptoms like fatigue, flat mood, and reduced motivation can start years before any change in the menstrual cycle.
It has the strongest evidence base of any treatment for hypoactive sexual desire disorder
A 2019 global position statement endorsed by multiple major menopause societies reviewed over 36 randomised controlled trials and concluded testosterone therapy is the most effective treatment for hypoactive sexual desire disorder (HSDD) in postmenopausal women. This isn't emerging or tentative — it's one of the better-supported conclusions in the entire field of menopause medicine. The fact that it remains underused says more about prescriber hesitancy than it does about the evidence.
Testosterone appears to support verbal memory and cognitive processing speed
Several observational studies and smaller randomised trials have found associations between testosterone levels and verbal memory, processing speed, and executive function in midlife women. The proposed mechanism involves testosterone's conversion to estradiol in brain tissue, as well as its direct action on androgen receptors in the hippocampus. While large-scale RCT data is still limited, the biological plausibility is strong and the direction of evidence is consistent.
It plays a direct role in muscle mass and physical strength
Testosterone is anabolic — it actively supports the building and maintenance of lean muscle tissue, and this function applies just as much to women as it does to men. Research in postmenopausal women has shown that physiological testosterone replacement, particularly when combined with resistance training, can help preserve or improve muscle mass and strength. Sarcopenia (age-related muscle loss) is a serious long-term health risk for women, and the role of testosterone in countering it is underappreciated.
There is emerging evidence for a protective role in bone density
Estrogen gets most of the attention when it comes to bone protection in menopause, but testosterone contributes independently to bone mineral density through its action on bone-forming osteoblast cells. Studies in surgically menopausal women — who lose both estrogen and testosterone abruptly — show greater bone loss than those going through natural menopause, suggesting testosterone has its own protective contribution. The evidence is not yet strong enough to recommend testosterone as a standalone bone therapy, but it adds a meaningful layer when considering overall skeletal health.
Low testosterone is associated with depressed mood and emotional flatness
Testosterone has direct effects on dopamine and serotonin pathways, and low levels have been associated in multiple studies with symptoms of depression, emotional blunting, and a loss of motivation or pleasure sometimes described as anhedonia. This is distinct from the mood disruption caused by poor sleep or estrogen fluctuation — it has a particular quality of flatness rather than sharp anxiety or sadness. Some women treated with testosterone therapy report a restoration of emotional range and drive that other treatments hadn't touched.
Fatigue and low energy are recognised androgen-deficiency symptoms
While fatigue in menopause has many potential contributors, persistent low energy that doesn't respond to sleep improvement, thyroid treatment, or estrogen therapy may reflect inadequate androgen levels. Testosterone influences mitochondrial function and red blood cell production, both of which are relevant to physical energy levels. Clinical guidance from several menopause specialist bodies now lists fatigue as one of the symptoms that should prompt consideration of testosterone assessment.
When used at physiological doses, testosterone therapy in women has a reassuring safety profile
A common reason women are denied testosterone is prescriber concern about cardiovascular risk, virilisation, or cancer — concerns largely extrapolated from male or supraphysiological dosing data. The 2019 global consensus statement, based on the available trial evidence, found no increased risk of breast cancer, cardiovascular events, or serious adverse effects when testosterone is used at doses that restore levels to the normal female physiological range. Mild, reversible side effects like increased facial hair or acne can occur but are dose-dependent and manageable.
No testosterone product is currently licensed specifically for women in most countries — but that doesn't mean it's experimental
In the UK, USA, Australia, and much of Europe, there is no regulatory-approved testosterone product formulated for women, which means prescribing it involves off-label use of male formulations at reduced doses. This licensing gap exists because pharmaceutical companies have not pursued approval — not because the evidence is insufficient. Menopause specialist societies in multiple countries have explicitly stated that the absence of a licensed product should not be a barrier to prescribing, and that off-label use is appropriate when clinically indicated.
Want to go deeper?
Rose covers every symptom, supplement, and condition in full detail — evidence-graded and agenda-free.
Rose is a free, evidence-based reference built for women navigating perimenopause and menopause. No ads. No products to sell. No agenda. Just honest answers — because every woman in this season deserves a trusted friend who has done the research.