Testosterone for Women Is Trending. But It's Not the Whole Hormone Story.

Everyone seems to be talking about testosterone. Podcasts, Instagram, longevity clinics, women's health influencers. Testosterone is being positioned as the answer for low libido, fatigue, brain fog, muscle loss, and motivation. Some of that excitement is warranted. Testosterone is a critical hormone in women, and its role in midlife health is worth understanding.

But testosterone rarely works the way the popular conversation suggests it should. Women start testosterone expecting energy, mental clarity, and drive. Some feel better. Many do not, or feel only partial improvement. The reason is not usually about testosterone alone. It is about the hormonal environment overall, and more specifically about what estrogen and progesterone are doing in the same woman during this timeframe.

This article walks through what the evidence actually supports for testosterone in women, why the estrogen and progesterone foundation still comes first for most women in perimenopause and menopause, and how to think about testosterone as part of a bigger hormone picture rather than as a standalone fix.

What testosterone does in women, and where the evidence is strongest

Before discussing what testosterone can and can't fix, it's worth being precise about what it actually does.

Testosterone is produced in the ovaries and adrenal glands.  It reaches peak concentrations in the 20s to early 30s and it declines gradually across a woman's adult life.¹ By the time of typical menopause (~age 51), women are at roughly 50–75% of their peak testosterone levels.  The symptoms most commonly attributed to low testosterone, reduced sexual desire, difficulty maintaining muscle, fatigue, low motivation, are real, and they do affect many women in midlife.

Sexual desire and function. This is where the evidence is most robust. Testosterone therapy has been shown in multiple studies to improve sexual desire in postmenopausal women with hypoactive sexual desire disorder (HSDD). The International Society for the Study of Women's Sexual Health (ISSWSH) and other guidelines specifically identify HSDD in postmenopausal women as the indication for testosterone therapy with the strongest supporting evidence.²

Muscle, energy, and mood. These are being actively studied but the evidence for testosterone as a treatment for these symptoms in women is preliminary. Some women report improvements. Randomized controlled trials have not consistently demonstrated benefit at the level of libido evidence. This is the area where the popular conversation runs ahead of what the data currently supports.³

Bone density and cognitive function. Evidence is even more limited here. These are areas where researchers are exploring whether testosterone might have a role, but the evidence base does not yet support routine treatment for these indications.

The honest summary: testosterone can help with libido in the right clinical situation. Whether it helps with everything else remains an open question, and one worth discussing with your provider based on your specific symptoms rather than assuming a broad benefit.

Why estrogen and progesterone still come first for most women

Here is the clinical reality: for most perimenopausal and menopausal women, the biggest hormonal shifts driving symptoms are the changes in estrogen and progesterone, not testosterone.

Estrogen and progesterone shift dramatically during the perimenopausal transition. Estrogen becomes volatile, swinging from high to low in unpredictable ways. Progesterone often declines first, and its decline affects sleep, anxiety, and stress tolerance. These changes are instrumental to shaping the environment in which all other hormones are acting.

This is why, from a clinical perspective, addressing estrogen and progesterone often comes before adding testosterone to the landscape.

A woman whose estrogen is volatile and whose progesterone is insufficient may not get the response she is hoping for from testosterone, because the underlying hormonal environment may be more of the primary driver behind her symptoms. Once estrogen and progesterone are addressed through hormone therapy, testosterone as an addition can be more targeted and often more effective.

Read: The four perimenopause hormone patterns in Oova's real-world data each produce a different symptom fingerprint, and each calls for a different approach.

This does not mean testosterone is never appropriate on its own, and it does not mean every woman needs estrogen and progesterone therapy before considering testosterone. It does mean that if a woman is in perimenopause or menopause and considering testosterone for symptoms, the estrogen and progesterone conversation is usually the more useful place to start.

For more on how individual hormone therapy response varies,. and why addressing the full hormonal picture matters, see why some women thrive on HRT while others feel worse.

How the three hormones work together

Hormones do not act in isolation. They act as a network, and each one shapes how the others behave.

Estrogen creates a foundational environment. It supports brain function, insulin sensitivity, vaginal and urinary tissue, and how receptors throughout the body respond to other hormones, including testosterone. When estrogen is low or volatile, tissues are less able to respond to testosterone in the ways women are hoping for.

Progesterone stabilizes. It supports sleep, calm, stress tolerance, and recovery. When progesterone is declining, sleep becomes lighter and more fragmented, anxiety increases, and stress resilience drops. Many of the symptoms women attribute to low testosterone, fatigue, low motivation, emotional flatness, may be more related to declining progesterone or other factors such as sleep, stress, or relationships.

For more on progesterone's specific effects across the cycle and through perimenopause, see Do I Need Progesterone With My Estrogen on HRT? and How Hormones Affect Your Sleep.

Testosterone contributes to drive and desire. Libido is the clearest area, with muscle synthesis and other effects still being clarified. But testosterone acts within the environment the other two hormones create. Without adequate estrogen, testosterone has less to work with.

This is part of why your hormones can look normal on a single test but you still feel terrible: a testosterone level drawn on one morning tells you what testosterone was at that moment, without telling you what estrogen and progesterone were doing, or how any of these have changed over time.

What about testing testosterone levels?

Standard blood tests can measure testosterone, but the picture is more complicated in women than in men. Most testosterone assays were calibrated for the ranges found in men, and they can be less reliable at the low levels found in women. Clinical guidelines generally recommend that decisions about testosterone therapy be based on symptoms and a conversation with your provider, rather than on hitting a specific number.

That said, checking a baseline testosterone level before starting therapy is still recommended. Not to decide whether to treat, but to make sure that a prescribed dose does not push a woman's levels into ranges above the normal female range. This is one of the specific labs a provider will typically check with the initiation and ongoing with testosterone therapy.

If you are on hormone therapy for estrogen and progesterone, or considering it, tracking those hormones over time gives you and your provider a fuller picture of what is actually shifting in your body.

A single level drawn on one morning tells you what's happening at that moment, without telling you what estrogen and progesterone were doing, how or how any of these have changed over time. That's why your hormones can look normal on a single test but you still feel terrible.

Oova tracks estrogen and progesterone, along with LH, daily through urinary metabolite testing. Seeing how these three hormones are moving day to day and week to week is useful context for any hormone conversation.

Who may benefit from testosterone therapy?

Broadly, the women most likely to benefit from testosterone therapy are:

Postmenopausal women with persistent low sexual desire that is bothering them, particularly when estrogen has already been addressed and the sexual desire symptom remains.

Women who have had a surgical menopause (removal of the ovaries), which produces a more abrupt drop in testosterone than natural menopause.

Women whose sexual function symptoms have not responded to other approaches and who want to try a targeted intervention.

Whether a woman fits this picture is a conversation with her provider. Some women who fit this description will get meaningful benefit. Some will not. Individual response varies, and testosterone therapy for women is off-label in the US, so prescribing requires a provider familiar with the approach.

For women whose primary symptoms are fatigue, mood changes, brain fog, or difficulty maintaining muscle, the evidence for testosterone as a specific treatment is less clear. This does not mean testosterone will not help, but it does mean the conversation with a provider should be honest about what the evidence currently supports, and open to the possibility that other hormonal or non-hormonal contributors, estrogen volatility, progesterone decline, sleep, stress, insulin sensitivity. may be part of the picture.

Read: The four perimenopause hormone patterns illustrates how differently these contributors can present from woman to woman.

What to think about if you are considering testosterone?

If you are curious about testosterone therapy, a few things are worth thinking about before you start:

What are your primary symptoms? Whether your concerns are sexual desire, energy, mood, focus, muscle, the estrogen and progesterone conversation is usually the more useful starting point. Testosterone can be added secondarily.

Are you already on hormone therapy for estrogen and progesterone? If so, then whether testosterone therapy adds meaningful benefit becomes a clearer question.

Who is prescribing? Testosterone therapy for women requires a provider who is familiar with the appropriate dosing, monitoring, and side effects. Because it is off-label in the US, the standard of care varies. Dosing that results in levels above the typical female range can produce androgenic side effects like acne, hair thinning, deepened voice or unwanted hair growth. Baseline and follow-up testosterone testing helps make sure you are staying in a physiologic range to avoid these side effects.

What are your expectations? Testosterone can help with libido in the right situation. Whether it will address everything else you are hoping for depends on what else is going on hormonally as well as so many other factors such as relationship status, sleep, stress and so on. Setting realistic expectations before you start helps you evaluate whether it is actually helping you.

What requires clinical supervision? All of it. Testosterone therapy for women is not FDA-approved in the United States (though it is in other countries), and most prescribing is done off-label. Monitoring is essential, including tracking free testosterone, SHBG, estrogen, and symptoms over time. Why some women thrive on hormone replacement while others feel worse applies equally to testosterone: individual variability in receptor sensitivity, metabolism, and hormonal context means response is not uniform.

What to watch for? Androgenic side effects, acne, hair thinning, voice changes, are dose-dependent. They are more likely when testosterone is dosed too aggressively or when the estrogenic context doesn't support appropriate androgen receptor sensitivity.

Tracking your hormones alongside these conversations

The women who tend to feel most in control of these decisions are the ones who understand what their hormones are actually doing over time, not just what a single lab result says. Oova tracks estrogen, progesterone, and LH daily, showing how these three hormones are fluctuating across a cycle, across weeks, and across months.

This kind of pattern data does not replace clinical testing or a conversation with your provider. But it does give you and your provider more context than a single blood draw can, especially in perimenopause, when the day-to-day variability is often more meaningful than any one number. Whether the conversation is about starting HT, adjusting HT, or considering testosterone as an addition, understanding your own pattern can help you decide what’s best for you.

The question isn't whether your testosterone is "normal."

The question is how estrogen, progesterone, and testosterone are changing together, over days, weeks, and months. and whether those patterns explain how you feel.

That's the difference between measuring hormones and understanding them.

See Your Hormone Pattern →

Frequently Asked Questions

Does testosterone decline during perimenopause? 

Yes, though more gradually than estrogen and progesterone. Testosterone production declines with age across adulthood in women, with a more noticeable drop after surgical menopause (removal of the ovaries). The timing and pace of decline vary significantly between individuals.

What are symptoms of low testosterone in women? 

The most consistently reported symptom is reduced sexual desire. Other symptoms sometimes attributed to low testosterone, fatigue, difficulty maintaining muscle, low motivation, mood changes, overlap significantly with the effects of low estrogen and low progesterone, which is why isolating testosterone as the cause requires ruling out other hormonal contributors.

Can testosterone therapy help with perimenopause symptoms? 

For libido specifically, yes, this is the most evidence-supported application of testosterone therapy in women. For other symptoms like fatigue, brain fog, and mood, evidence is more mixed. Whether testosterone therapy helps depends significantly on whether other hormonal factors (estrogen deficiency, progesterone insufficiency, cortisol dysregulation) have been addressed first.

Is testosterone therapy safe for women? 

When prescribed at physiologic doses with appropriate monitoring, testosterone therapy appears safe for most women in the short to medium term. Long-term safety data is less robust. Testosterone therapy for women is not FDA-approved in the US and is prescribed off-label. Clinical supervision, including baseline and follow-up testing, is essential.

Why does estrogen matter for testosterone's effects? 

Estrogen supports androgen receptor expression and vaginal tissue health, both of which are necessary for testosterone to produce its intended effects. Women with significantly depleted estrogen may find testosterone therapy less effective until estrogen is addressed. The two hormones work in concert, not in competition.

Should I address estrogen and progesterone before considering testosterone?

For most perimenopausal and menopausal women, yes. The changes in estrogen and progesterone are usually the biggest hormonal shifts driving symptoms in midlife. Addressing those first often produces meaningful improvement and clarifies whether testosterone would add further benefit. Postmenopausal women with persistent low sexual desire despite adequate estrogen may be candidates for testosterone as an addition. This is a conversation to have with your provider.

Why might I feel like I have low testosterone when my levels are normal? 

Standard testosterone blood tests are calibrated for the ranges found in men, and they can be less reliable at the low levels found in women. Symptoms attributed to low testosterone also overlap significantly with symptoms of low estrogen, low progesterone, poor sleep, and elevated stress. If your levels are technically normal but you feel unwell, the more useful clinical question is usually not "is my testosterone low?" but "how could testosterone therapy potentially benefit me given the rest of my clinical picture?"

Read:  Why your hormones look normal but you still feel terrible covers this gap in more detail.

What's the difference between total testosterone and free testosterone?

Total testosterone measures all testosterone in the bloodstream, including testosterone bound to proteins. Free testosterone measures only the unbound, biologically active component. Both have limitations at the low levels found in women. Clinical decisions about testosterone therapy in women are generally symptom-based rather than based on specific number thresholds.