Can testosterone help with more than my libido, like energy, mood, or brain fog?

The guideline-level evidence supports testosterone only for low sexual desire; the 2019 Global Consensus explicitly found insufficient data to support testosterone for cognition, bone, muscle, mood or general wellbeing, and a large meta-analysis found no demonstrated effect on body composition, musculoskeletal or cognitive outcomes, though the number of women measured on those outcomes was small.

At the same time, many clinicians report patients describing broader benefits, and a small uncontrolled UK study of women adding testosterone to existing hormone therapy for 4 months reported improvements across mood, cognition and libido measures, but it wasn't controlled or blinded, and placebo response in hormone studies tends to run high. A trial testing testosterone plus exercise in older women after hip fracture found no significant benefit on its main walking-distance outcome. The honest summary right now is: possible, biologically plausible, but not proven for anything beyond sexual desire.

What to know about this answer

This is a genuinely live disagreement between the guideline evidence base, which limits proven benefit to sexual desire, and consistent field reports of broader improvement in mood and cognitive symptoms that so far come from small, uncontrolled or null studies.

What the research shows, and which source each finding rests on

The 2019 Global Consensus Position Statement explicitly found insufficient data to support testosterone for cognition, bone, muscle, mood or general wellbeing, and recommends against use for those endpoints.

A [1]

A meta-analysis of 36 RCTs (8,480 women) found no demonstrated effects of testosterone on body composition, musculoskeletal variables, or cognitive measures, though the number of women contributing data for these outcomes was small.

A [2]

Where the real disagreement is

Each position is shown with its own sources. A position listed here is not necessarily the accepted view.

Evidence limits benefit to libido; other claims are unproven

Global Consensus (Davis et al.); Islam et al. meta-analysis

The best-powered trial data show no demonstrated effect on body composition, musculoskeletal function or cognition, and the guideline explicitly recommends against using testosterone for those endpoints given how thin the evidence is.

A [1]A [2]

Patients consistently report broader benefit

Kelly Casperson, MD; Rachel Rubin, MD, clinical practice

Patients describe more than a libido effect, feeling 'more like themselves,' which fits a mechanistic view of testosterone as a mood-related brain hormone rather than a sex-only hormone; a UK retrospective study of 510 women reported improvement in mood (47%), cognition (39%) and libido (52%) after adding transdermal testosterone, though the study was uncontrolled, unblinded and retrospective.

C [3]

What would settle it: Adequately powered randomized trials with non-sexual primary endpoints, cognition, mood, or lean mass and function, at female-physiologic doses, would settle this; none currently exist.

What is really going on here

Is this claim about testosterone (energy, muscle, brain) backed by trials, or by patient reports?

Questions for your doctor

What outcomes does the current evidence actually support for testosterone?
If I try it hoping for more than libido benefit, how will we know if it's working versus a placebo effect?
Are there safety considerations for longer-term use beyond what trials have studied?
What would make us stop or reconsider treatment?

Questions with no answer yet

Is 'no demonstrated effect' on cognition, bone, and muscle the same as 'proven not to work,' or does it just mean the number of women who contributed data on those specific outcomes was too small to detect a real effect if one exists?

Partly studied

What is known: The meta-analysis's own conclusion contains both readings at once: no effects were reported, but the number of women who contributed data for these outcomes was small. Different endpoints carry different verdicts within the same consensus statement: insufficient evidence for cognition, but a directly negative finding for general wellbeing and depressed mood. 'We do not know' and 'it does not work' are being used interchangeably in public discussion when they are different findings.

What would test it: Adequately powered randomized trials with non-sexual primary endpoints, pre-specified and powered to detect a small effect, rather than non-sexual outcomes measured as secondary afterthoughts in trials designed around sexual endpoints.

Could everyday plastic and chemical exposure be part of why my testosterone feels low?

Partly studied

What is known: One study found certain plastic-related chemicals associated with lower testosterone in women, with the strongest signal specifically in the 40 to 60 age range, though this is one cross-sectional study, not proof of cause. The part of the popular version of this story that does not hold up is the mechanism many people describe: a different group of chemicals, including bisphenols, parabens, and a common antibacterial compound, is consistently associated with LOWER sex hormone binding globulin in women, not higher, and lower binding globulin actually raises the free, usable testosterone in blood rather than trapping it. The 'plastics are stealing your testosterone by raising your binding protein' version of this story is telling the measured direction backwards.

What would test it: A study following women across the menopause transition with repeated chemical exposure measurements and a precise hormone panel, since a single blood or urine sample cannot establish whether exposure is really driving a woman's individual hormone trajectory.

If testosterone truly helped mood or physical function through a general mechanism rather than only a sexual one, why did a directly relevant trial, testosterone plus exercise in older women after hip fracture, find no significant benefit on its main walking-distance outcome?

Studied and negative

What is known: This is the one directly relevant randomized test in this space, and it was null on its primary outcome, even though secondary signals, such as reduced assistive-device use, have been highlighted by some clinicians as hypothesis-generating. The primary endpoint result is what counts as the trial's actual finding.

What would test it: Additional adequately powered randomized trials with non-sexual primary endpoints, such as validated mood and cognitive measures, since this existing trial tested physical function specifically, not mood or cognition.

Sources

1.Global Consensus Position Statement on the Use of Testosterone Therapy for Women.Davis SR, et al. Global Consensus Position Statement on the Use of Testosterone Therapy for Women. J Clin Endocrinol Metab 2019;104(10):4660-4666 · Systematic review or guideline
2.Safety and efficacy of testosterone for women: a systematic review and meta-analysis of randomised controlled trial data.Islam RM, et al. Safety and efficacy of testosterone for women: a systematic review and meta-analysis of RCT data. Lancet Diabetes Endocrinol 2019;7(10):754-766 · Systematic review or guideline
3.Effect of transdermal testosterone therapy on mood and cognitive symptoms in peri- and postmenopausal women: a pilot study.Glynne S, et al. Effect of transdermal testosterone therapy on mood and cognitive symptoms in peri- and postmenopausal women: a pilot study. Arch Womens Ment Health 2025;28(3):541-550 · Observational study

The letter grades the type of study behind a claim, not the answer itself.

This page is general information based on published research and public sources. It is not medical advice and not a personal assessment, and it does not replace a conversation with your doctor. Peritale is a wellness product, not a medical device, and is not intended to diagnose, treat, cure or prevent any disease. For any medical question, speak with a licensed clinician.

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