Testosterone for Women: The Most Under-Prescribed Hormone in Female Medicine

The Forgotten Female Hormone

Women's health in the United States has been dominated by estrogen and progesterone for good reason — they're the hormones that define the female reproductive cycle, they change dramatically during perimenopause, and they're the focus of most hormone replacement therapy research. Testosterone, by comparison, has been almost ignored in clinical practice for women.

This is a strange oversight, because testosterone is actually the most abundant active sex hormone in premenopausal women. Women produce testosterone in the ovaries and adrenal glands, at levels that are much lower than men's but biologically meaningful. Across a woman's lifetime, her circulating testosterone level is consistently higher than her estradiol level, by a factor of 5 to 20 depending on the time of cycle.

And yet — there is no FDA-approved testosterone product for women in the United States. There are multiple approved products for men, ranging from gels to pellets to injections. For women, clinicians who want to prescribe testosterone must either use off-label male products at reduced doses (imprecise and often excessive) or order compounded formulations from 503A pharmacies. Most gynecologists, especially those trained in the last 20 years, either aren't aware testosterone is an option for their patients or actively avoid prescribing it.

What Testosterone Does in Women

Testosterone in women contributes to a number of body systems that overlap with its effects in men, but aren't identical:

Libido and sexual response. The research on testosterone and female libido is the strongest evidence base for female testosterone replacement. Multiple randomized trials have shown that small, female-range doses of testosterone in women diagnosed with low sexual desire (HSDD) produces significant improvements in sexual desire, arousal, and satisfaction.^[1] The International Society for the Study of Women's Sexual Health (ISSWSH) has published a consensus position statement supporting testosterone therapy for postmenopausal women with HSDD, with bloodwork to keep active testosterone levels in the range of a healthy younger woman.^[2]

Energy and motivation. Women on testosterone therapy frequently report improved energy, more willingness to take on demanding tasks, and greater baseline motivation. This is harder to study in controlled trials because it's subjective, but the consistency of patient reports is striking.

Body composition. Testosterone supports lean muscle mass and healthy body composition in women just as it does in men, albeit at different scales. Women on testosterone therapy typically notice easier muscle development in response to strength training and reduced abdominal fat accumulation.

Mood and mental clarity. Multiple studies have shown testosterone is associated with mood stability and cognitive clarity in women. Low testosterone in women correlates with an increased risk of depression that's independent of estrogen status.

Bone and cardiovascular health. Long-running tracking studies suggest testosterone may contribute to bone density preservation and cardiovascular health in women, though the evidence here is more mixed than for the other indications.

^[1]: Davis SR, et al. "Global Consensus Position Statement on the Use of Testosterone Therapy for Women." Climacteric, 2019. Endorsed by ISSWSH, the International Menopause Society, and others. ^[2]: Wierman ME, et al. "Androgen Therapy in Women: A Reappraisal — An Endocrine Society Clinical Practice Guideline." Journal of Clinical Endocrinology & Metabolism, 2014.

Why Female Testosterone Doesn't Have an FDA-Approved Product

This is one of the weirder side effects of how US drug regulation works. The pathway to FDA approval for a female testosterone product requires billions of dollars of trial data, and the commercial opportunity is considered too narrow to justify the investment — not because the patient population is small (it's enormous), but because female testosterone is off-patent and there's no clear path to exclusive pricing for the developer.

Procter & Gamble famously tried to develop Intrinsa, a testosterone patch for women, in the early 2000s. The FDA advisory committee voted against approval in 2004 despite evidence of efficacy, citing concerns about long-term cardiovascular safety. The product was later approved in Europe but never reached the US market. P&G eventually pulled it from development, and no major pharmaceutical company has since tried.

The result: female testosterone therapy exists, is effective, is widely used by clinicians who know the literature, and is nearly invisible to patients who haven't gone looking for it. Most American women who take testosterone do so through compounded prescriptions from physicians who understand the off-label pathway.

How Testosterone Is Compounded for Women

Because there's no FDA-approved female product, compounding pharmacies prepare testosterone at female physiologic doses. The most common formulation categories:

Topical cream. Testosterone compounded into a cream base. Topical cream produces consistent daily hormone levels and is the most widely prescribed formulation.

Topical gel. Similar to cream but with a faster-absorbing base. Popular with patients who find cream residue inconvenient.

Subcutaneous pellets. Testosterone pellets are inserted under the skin in a minor office procedure and release hormone consistently over several months. Popular with patients who prefer not to think about daily dosing, though the dose can't be adjusted mid-cycle and pellet removal is difficult if side effects occur.

Sublingual troches. Less common for testosterone specifically but available.

Subcutaneous injection. Very rare in female protocols. More common in men.

Specific dosing, frequency, and administration are determined by the prescribing provider based on the patient's health history, bloodwork, and clinical goals. Published research describes a range of approaches, but the protocol for any individual patient is a clinical decision made during intake.

Male-formulation testosterone products are sometimes used off-label for women, but compounded female-specific formulations are generally preferred by physicians specializing in this area because they allow more precise dose titration at the lower ranges relevant to female physiology.

What Blood Work Actually Matters

Female testosterone therapy should always be monitored with regular lab work. The relevant tests:

Total testosterone. Baseline and at periodic intervals. The prescribing provider determines target ranges based on the patient's individual clinical picture and published reference ranges for premenopausal women.

Free testosterone. More relevant than total testosterone for clinical effect, because only free (unbound) testosterone is biologically active. Free testosterone levels correlate better with patient response than total levels.

SHBG (sex hormone binding globulin). SHBG is the protein that grabs onto testosterone in your blood. Only unbound testosterone actually works, so high SHBG can blunt the effect of your dose — important to know before reading your other numbers. Important to measure before interpreting other labs.

Estradiol and progesterone. To evaluate the hormonal context and rule out imbalances elsewhere in the system.

DHEA-S. A precursor hormone that's sometimes supplemented alongside testosterone.

Complete metabolic panel and lipid panel. General safety monitoring.

Lab cadence and target ranges are determined by the prescribing physician based on individual patient factors. Baseline labs before starting therapy and periodic follow-up labs during treatment are standard practice.

Side Effects and What to Watch For

At physiologic doses, female testosterone therapy is generally well-tolerated. The main side effects to monitor:

Acne. Can occur if testosterone dose is too high or if individual sensitivity is unusual. Usually resolves with dose reduction.

Hirsutism. Unwanted hair growth (usually on the face, chin, or abdomen). Most often dose-related and reversible with dose reduction.

Scalp hair thinning. Less common at physiologic doses but possible, especially if thinning hair runs in your family.

Voice changes. Rare at physiologic doses; more common with excessive dosing. Voice changes, once established, may not fully reverse.

Mood changes. Most women report improved mood on testosterone, but a subset experience irritability or agitation, especially at higher doses. Dose reduction usually resolves.

Cardiovascular effects. The long-term cardiovascular safety of female testosterone therapy is an active area of research. Current evidence suggests physiologic-dose supplementation is neutral or beneficial for cardiovascular health, but patients with significant cardiovascular risk factors should be monitored more closely.

The pattern that matters most: side effects are almost always dose-related. A patient who develops acne or hirsutism at a given dose can usually reduce the dose and continue therapy comfortably. Patients who experience side effects often need to work with their physician on a specific titration rather than stopping entirely.

Testosterone in the Broader Female Hormone Context

Testosterone rarely stands alone. Most women taking testosterone are also thinking about the rest of their hormonal picture:

Estrogen. Many women take testosterone alongside estradiol, especially in perimenopause and menopause. The combination can produce better results than either alone for sexual function, energy, and body composition.

Progesterone. Important for women with a uterus who are taking estrogen. Also valued for its sleep and mood effects independent of estrogen.

DHEA. A precursor hormone. Sometimes supplemented in women with low DHEA-S, especially in combination with other hormones.

Oxytocin. Not a replacement hormone in the classical sense, but increasingly used as part of female sexual health protocols for the bonding and arousal response it supports.

Thyroid. Often overlooked but important — thyroid dysfunction can blunt the effect of any other hormone intervention.

The most effective female hormone protocols treat the whole system rather than optimizing one hormone in isolation. This is a departure from older models of hormone replacement that focused only on estrogen replacement post-menopause.

Getting Testosterone Prescribed

Finding a physician who will prescribe testosterone for women remains the main obstacle for most patients. The options:

Functional medicine and longevity clinics. These physicians typically understand off-label hormone prescribing and are comfortable with female testosterone. Often more expensive and sometimes not covered by insurance.

Menopause specialists. The North American Menopause Society (NAMS) has increasingly acknowledged testosterone's role in female sexual health, and NAMS-certified practitioners are more likely to prescribe it than general gynecologists.

Telehealth platforms. A growing number of telehealth services now offer female hormone optimization, often at more accessible price points than specialty clinics. The quality varies — the good platforms have physicians who actually run these protocols; the weaker ones are essentially order-takers.

Traditional gynecologists. A small but growing minority are comfortable with testosterone therapy, especially in patients with documented low libido that's affecting quality of life.

What to avoid: any source that prescribes without bloodwork, doesn't follow up with repeat labs, or doesn't have a physician reviewing the case. Testosterone is safe and effective when dosed and monitored properly. It's also a hormone that can cause problems when dosed carelessly. The quality of the prescribing matters more than the price.