Testosterone Replacement Therapy for Women

Testosterone replacement therapy for women is a treatment that restores the testosterone levels that naturally decline with age, particularly during perimenopause and menopause. Women produce testosterone in their ovaries and adrenal glands, and this hormone plays a critical role in sexual desire, energy, mood, cognition, bone density, and muscle maintenance. By menopause, women can lose up to 50 percent of their natural testosterone, according to the Cleveland Clinic. Testosterone prescribing for women in the United States has increased 2.6-fold between 2016 and 2025, according to research published in ScienceDirect, reflecting growing recognition that testosterone is not a "male hormone" but a vital part of female health. This blog explains what testosterone therapy does for women, who it helps, the best delivery forms, the side effects to expect, and what testing should happen before starting treatment.

What Is Testosterone Replacement Therapy for Women?

Testosterone replacement therapy (TRT) for women is a medical treatment that supplements the testosterone the body no longer produces in adequate amounts. Unlike estrogen and progesterone, which drop sharply during the menopausal transition, testosterone declines gradually, beginning around age 30 and continuing steadily through perimenopause and beyond. For some women, this slow decline reaches a point where symptoms become noticeable and disruptive.

The 2019 Global Consensus Position Statement on the Use of Testosterone Therapy in Women currently recognizes hypoactive sexual desire disorder (HSDD) as the only evidence-based indication for testosterone therapy. HSDD is defined as a persistent decrease or absence of sexual desire that causes marked personal distress. However, research into testosterone's broader effects on energy, cognition, bone health, and body composition in women is actively expanding. Many integrative and naturopathic providers, including our team, evaluate testosterone alongside the full hormonal imbalance picture rather than treating it as an isolated variable.

No FDA-approved testosterone formulation exists specifically for women in the United States. Instead, clinicians prescribe testosterone off-label, typically at approximately one-tenth the dose used for men. This off-label prescribing is backed by clinical research and endorsed by The Menopause Society, the International Society for the Study of Women's Sexual Health (ISSWSH), and the 2019 Global Consensus Position Statement. The therapy is most commonly delivered as a low-dose transdermal cream or gel applied to the skin.

Why Do Women Need Testosterone?

Women need testosterone because it supports several functions that decline noticeably when levels drop too low. Testosterone is not just about libido. It influences energy production, cognitive sharpness, mood stability, muscle protein synthesis, bone mineral density, and fat metabolism. Estrogen often receives the most attention during menopause conversations, but testosterone plays a supporting role in many of the same systems.

The typical adult female testosterone level ranges from 15 to 70 nanograms per deciliter (ng/dL), according to the Cleveland Clinic. There is no universally agreed-upon deficiency threshold for women the way there is for men (below 300 ng/dL). This makes symptom evaluation and comprehensive testing even more important because a blood level that appears "normal" on paper may still be associated with significant symptoms if it represents a substantial decline from that woman's individual baseline.

Testosterone production in women comes from two sources: the ovaries and the adrenal glands. When the ovaries reduce output during perimenopause, the adrenal glands partially compensate. Women who enter perimenopause with already-exhausted adrenal glands from chronic stress experience a steeper testosterone decline because both production sources are compromised simultaneously. This is one reason why an integrative evaluation that includes adrenal function assessment alongside hormone levels provides a more accurate clinical picture than a testosterone blood draw alone.

What Are Signs of Low Testosterone in Females?

The signs of low testosterone in females include decreased sex drive, persistent fatigue that does not improve with rest, brain fog, difficulty concentrating, mood changes including irritability and emotional flatness, loss of muscle mass and strength, increased body fat, disrupted sleep, and reduced sense of overall vitality. These symptoms develop gradually, which makes them easy to attribute to stress, aging, or menopause in general rather than to testosterone specifically.

Low libido is the most clinically recognized sign. Research published in the New England Journal of Medicine reports that the prevalence of sexual problems among women ranges from 9 to 43 percent, and HSDD affects up to 32 percent of the menopausal population according to clinical trial data. But sexual desire is complex, and low testosterone is only one of many possible contributors. Sleep disruption, mood disorders, vaginal dryness, relationship dynamics, medications, and other hormonal deficiencies all affect libido, which is why a thorough evaluation matters before attributing low desire solely to testosterone.

The non-sexual symptoms of low testosterone in women deserve equal attention. Chronic fatigue that persists despite adequate sleep and nutrition, progressive loss of muscle tone despite regular exercise, and cognitive decline that feels like a heavier version of "normal" brain fog may all reflect testosterone insufficiency. Research is actively investigating testosterone's effects on bone density, body composition, and mood in women, though the evidence base is not yet as strong as it is for libido.

What Happens to a Woman's Body When She Starts Taking Testosterone?

When a woman starts taking testosterone at the appropriate low dose, the most commonly reported changes include improved sexual desire and satisfaction, increased energy, better mood stability, enhanced mental clarity, and a gradual shift in body composition toward more lean muscle and less abdominal fat. Most women begin noticing improvements within 3 to 4 weeks, according to clinical data from Midi Health, though the full therapeutic effect may take 2 to 3 months to develop.

The goal of testosterone therapy in women is to restore levels to the premenopausal range, not to elevate them into the male range. Careful dose titration and regular monitoring keep levels within the physiological window where benefits are maximized and side effects are minimized. A woman taking properly dosed testosterone should feel more like herself at her best, not like a different person.

Testosterone therapy works most effectively when it is part of a broader hormonal and metabolic optimization strategy. A woman whose estrogen and progesterone are also deficient, whose thyroid is underperforming, or whose adrenal glands are depleted will get limited benefit from testosterone alone. This is why we approach testosterone as one component of a comprehensive bioidentical hormone therapy protocol rather than a standalone treatment.

What Is the Best Form of Testosterone for Women to Take?

The best form of testosterone for women to take is a low-dose transdermal cream or gel applied to the skin. Transdermal delivery provides steady absorption, avoids the liver's first-pass metabolism, and allows precise dose adjustments based on symptom response and blood level monitoring. The 2019 Global Consensus Position Statement and the ISSWSH clinical practice guidelines both recommend transdermal application as the preferred delivery method for women.

The available delivery options include the following:

1. Compounded transdermal cream or gel: the most commonly prescribed form for women. A compounding pharmacy prepares a low-dose formulation (typically around 1/10th of the male dose) that the patient applies daily to the lower abdomen, inner thigh, or buttocks. Compounded formulations are not FDA-regulated in the same way as commercially manufactured drugs, which means quality can vary between pharmacies.
2. Male topical solutions adapted for female dosing: commercially manufactured testosterone gels and solutions designed for men can be used at a fraction of the labeled dose. This requires careful measuring to avoid accidentally using too much.
3. Sublingual troches or lozenges: dissolve under the tongue for absorption through the oral mucosa. These provide an alternative for women who cannot use topical products but require more precise dosing management.
4. Testosterone pellets: small compounded pellets inserted under the skin that release testosterone over several months. Pellets are controversial because dosing cannot be adjusted once implanted, and blood levels can spike unpredictably. The Global Consensus Position Statement recommends against pellet therapy for women, and most menopause specialists prefer adjustable delivery methods.

Injections are generally not recommended for women because they produce sharp peaks and troughs in blood levels rather than the steady state that female physiology requires. Over-the-counter testosterone supplements are unregulated and should be avoided because their purity, dosing accuracy, and safety are not verified.

What Are the Side Effects of Testosterone Replacement for Women?

The side effects of testosterone replacement for women are dose-dependent, meaning they are more likely to occur when testosterone levels rise above the premenopausal female range. At appropriately low doses with proper monitoring, side effects are uncommon. When they do appear, the most common include acne, increased body or facial hair at the application site, oily skin, and mild changes in body odor.

More significant side effects, which typically indicate that the dose is too high or that levels have exceeded the female physiological range, include scalp hair thinning (male-pattern hair loss), voice deepening, clitoral enlargement, and blood lipid abnormalities. These effects are generally reversible if the dose is reduced promptly, which is one of the primary advantages of transdermal delivery over pellets: the dose can be adjusted or stopped at any time.

Women who are pregnant, breastfeeding, or have active liver disease, hormone-sensitive cancers, uncontrolled high cholesterol, or severe acne should avoid testosterone therapy. The Cleveland Clinic recommends regular testosterone level testing within 4 to 6 weeks of starting therapy, followed by assessments every 6 months to confirm that levels remain in the safe therapeutic range. This monitoring is a non-negotiable part of responsible testosterone prescribing for women.

Will a Woman Lose Weight on Testosterone?

Testosterone is not a weight-loss drug, but it can improve body composition in ways that support weight management efforts. Testosterone promotes lean muscle development and supports metabolic rate. Women with low testosterone often struggle to maintain muscle mass despite consistent exercise, which slows metabolism and makes fat accumulation easier. Restoring testosterone to the premenopausal range can shift the body's metabolic efficiency back toward building muscle and utilizing fat for energy.

The distinction matters clinically. The scale may not change dramatically, but body composition can shift meaningfully: less visceral abdominal fat, more lean muscle definition, and improved exercise recovery. Women who combine testosterone therapy with resistance training and adequate protein intake tend to see the most visible changes in body composition. Testosterone therapy alone, without exercise and nutritional support, produces limited body composition results.

What Are the First Signs of Testosterone Working?

The first signs of testosterone working in women typically include increased sexual desire and a renewed interest in intimacy, improved energy levels and reduced afternoon fatigue, better mood stability with less irritability and emotional flatness, and sharper mental clarity. These changes usually appear within 3 to 4 weeks of starting therapy. Physical changes like improved muscle tone, better exercise recovery, and shifts in body composition take longer to develop, often becoming noticeable after 2 to 3 months of consistent use.

Cedars-Sinai recommends that if a woman does not notice improvement after approximately six months on testosterone therapy, the treatment should be discontinued and other approaches explored. Response to testosterone therapy varies significantly between individuals, and the absence of improvement does not mean the symptoms are not real. It means the root cause may involve other factors, such as estrogen deficiency, mental health conditions, thyroid dysfunction, nutrient depletion, or relationship dynamics, that testosterone alone cannot address.

Who Should Not Take Testosterone Therapy?

Women who should not take testosterone therapy include those who are pregnant or breastfeeding, those with active liver disease, women with hormone-sensitive cancers (breast cancer, uterine cancer), women with uncontrolled hyperlipidemia (high cholesterol), and those with severe cystic acne. Women with cardiovascular disease should discuss risks carefully with their provider because research published in ScienceDirect found that 51.2 percent of women prescribed testosterone had at least one documented cardiometabolic risk factor, highlighting the importance of thorough screening.

Testosterone therapy is also not recommended as a general wellness treatment. The 2019 Global Consensus Position Statement specifically advises against prescribing testosterone for energy, cognition, bone health, or general well-being in the absence of diagnosed HSDD, because the evidence base for these indications in women is not yet sufficient. That said, many women present with a combination of symptoms, and when low testosterone is identified alongside other hormonal deficiencies as part of a comprehensive evaluation, addressing all deficiencies together often produces better outcomes than treating each hormone in isolation.

What Testing Should Happen Before Starting Testosterone Therapy?

Comprehensive testing before starting testosterone therapy reveals not just whether testosterone is low, but why it declined and what other systems need support for the therapy to work optimally. A baseline testosterone blood draw alone does not provide enough information because testosterone levels fluctuate throughout the day and across the menstrual cycle, making a single measurement unreliable.

The testing protocol we follow at our Bingham Farms clinic includes the following:

• Total and free testosterone levels, measured alongside sex hormone-binding globulin (SHBG) to determine how much testosterone is available for the body to use
• Complete sex hormone panel including estradiol, progesterone, and DHEA-S to evaluate the full hormonal landscape
• Thyroid function panel (TSH, free T3, free T4) because thyroid dysfunction mimics and compounds low testosterone symptoms
• Adrenal function assessment (cortisol, DHEA) because adrenal exhaustion directly reduces testosterone production
• Metabolic markers including fasting glucose, fasting insulin, and lipid panel to screen for cardiometabolic risk factors
• Nutrient status including vitamin D, zinc, magnesium, and B vitamins, all of which support testosterone synthesis
• Environmental toxin screening for endocrine-disrupting chemicals that interfere with androgen receptor signaling
• Liver function testing to confirm the body can safely metabolize supplemented testosterone

Our Biointelligent Testing evaluates over 500 percent more lab markers than a conventional hormone panel. This depth of analysis allows us to identify the root causes behind testosterone decline, whether they involve adrenal depletion, nutrient deficiency, or ovarian insufficiency.

Screening for environmental toxin burden is another critical step most providers skip. Endocrine-disrupting chemicals interfere with androgen receptor signaling and can suppress testosterone production at the cellular level. Addressing those root causes alongside testosterone supplementation produces more durable and comprehensive results than hormone replacement alone.

AspectWhat Competitors CoverWhat a Root-Cause Approach AddsTestingBaseline testosterone level, follow-up at 4-6 weeksFull hormone panel, thyroid, adrenals, nutrients, toxins, liver, metabolic markers, SHBG, genetic polymorphismsIndicationHSDD only (per Global Consensus)HSDD plus evaluation of testosterone's role within the complete hormonal pictureTreatmentTestosterone cream or gel, off-label dosingBioidentical testosterone integrated with estrogen, progesterone, and naturopathic support (nutrition, detox, adrenal restoration)MonitoringTestosterone levels every 6 monthsComprehensive re-evaluation of all contributing systems alongside testosterone levelsRoot-Cause IdentificationNot addressedIdentifies WHY testosterone dropped (adrenal exhaustion, toxin burden, nutrient depletion, ovarian decline) and corrects those drivers

Sources: 2019 Global Consensus Position Statement, ISSWSH Clinical Practice Guidelines (2021), The Menopause Society Practice Pearl (2023), Cleveland Clinic, Cedars-Sinai, ScienceDirect (2026)

Frequently Asked Questions

Can Testosterone Therapy Help With Brain Fog in Women?

Research into testosterone's cognitive effects in women is still developing. Some women report improved mental clarity and focus after starting testosterone therapy, and the biological plausibility is supported by the presence of androgen receptors in brain tissue. However, the 2019 Global Consensus Position Statement notes that the evidence is not yet sufficient to recommend testosterone specifically for cognitive symptoms. Brain fog during perimenopause and menopause is often driven by estrogen deficiency, sleep disruption, and chronic stress, so a comprehensive hormonal and metabolic evaluation typically uncovers the primary drivers more effectively than testosterone testing alone.

Is Testosterone Therapy Safe Long-Term for Women?

Long-term safety data for testosterone therapy in women is limited because large-scale, multi-year studies have not been completed. Short-term studies (up to 2 years) show no increased cardiovascular risk and even suggest a potential protective effect against breast cancer, according to Cedars-Sinai. The Cleveland Clinic advises caution about extending treatment beyond two years due to the lack of long-term data. Regular monitoring of testosterone levels, lipid profiles, and liver function mitigates risk during treatment and allows early detection of any adverse trends.

Does Testosterone Therapy Affect a Woman's Voice?

Voice deepening is a recognized side effect of testosterone therapy in women, but it is associated with testosterone levels above the premenopausal female range rather than with appropriately dosed therapy. At the low doses prescribed for women (approximately one-tenth of the male dose), voice changes are rare. If they occur, they typically reverse when the dose is reduced. This is one reason why transdermal delivery with regular level monitoring is preferred over pellets or injections, which are harder to adjust.

Can Premenopausal Women Take Testosterone?

The ISSWSH clinical practice guidelines support testosterone therapy for women in the late reproductive years (including premenopausal women, not just postmenopausal women) when HSDD is present and other contributing factors have been ruled out. Premenopausal women considering testosterone therapy should work with a provider experienced in female hormone management because testosterone interacts with estrogen and progesterone cycling in ways that require careful monitoring. Preconception care planning is also essential because testosterone therapy is contraindicated during pregnancy.

How Is Testosterone Therapy Different From Estrogen Therapy?

Testosterone therapy and estrogen therapy address different hormones with different symptom profiles. Estrogen therapy primarily treats vasomotor symptoms (hot flashes, night sweats), vaginal dryness, bone loss, and mood instability caused by estrogen deficiency. Testosterone therapy primarily addresses low sexual desire (HSDD) and may support energy, muscle maintenance, and cognitive function. Many women in perimenopause and menopause benefit from both estrogen and testosterone as part of an integrated hormone optimization protocol that addresses the full spectrum of hormonal decline.

Why Does Testosterone Decline in Women?

Testosterone declines in women because the ovaries gradually reduce production starting around age 30, with an accelerating decline through perimenopause and menopause. Surgical removal of the ovaries (oophorectomy) causes an immediate and dramatic drop. The adrenal glands also produce testosterone, but chronic stress, aging, nutrient deficiencies (particularly zinc and vitamin D), environmental toxin exposure, and medications (including oral contraceptives and corticosteroids) all suppress adrenal testosterone output. Understanding which of these factors is contributing to each woman's decline shapes the treatment approach and determines whether testosterone supplementation alone is sufficient or whether root-cause correction is needed alongside it.

The Takeaway

Testosterone is not just a male hormone. It plays a meaningful role in women's energy, mood, cognitive function, muscle health, and sexual desire. When testosterone levels decline during perimenopause and menopause, the effects can be just as disruptive as estrogen deficiency, yet testosterone is far less often evaluated or treated in women.

A root-cause approach to testosterone therapy evaluates not just whether levels are low, but why they dropped and what other systems need support for treatment to work effectively. At Cutler Integrative Medicine, we use comprehensive diagnostics and integrative protocols to design bioidentical testosterone plans customized to each patient's biology, serving women across Birmingham, West Bloomfield, Troy, and the greater Oakland County area.

If you are experiencing persistent low libido, fatigue, brain fog, or muscle loss and want to find out whether testosterone therapy is right for you, reach out to our team to schedule a consultation.