Most doctors don't test women's testosterone — even when symptoms are textbook. Complete guide: optimal ranges, cream vs injection, and what 1-5mg/day does.
Key Takeaways: Women produce testosterone and need it for energy, libido, mood, and body composition. Levels drop by roughly 50% between ages 20 and 40. Treatment at physiological doses (5-10mg/day cream) is safe and effective. The 2019 Global Consensus Position Statement supports testosterone therapy for postmenopausal women with hypoactive sexual desire disorder (HSDD).
Why Testosterone Matters for Women
Testosterone is not a male hormone. Women produce it in the ovaries, adrenal glands, and peripheral tissues throughout their lives. While women make about 1/10th to 1/20th the amount men produce, testosterone plays outsized roles in female physiology.
In women, testosterone is the most abundant biologically active hormone. Premenopausal women produce approximately 100-400 mcg of testosterone daily. That is three to four times the amount of estradiol the ovaries produce.
Testosterone drives several critical functions in women:
Libido and sexual function -- testosterone is the primary hormone behind sexual desire in women
Energy and vitality -- influences mitochondrial function and overall energy levels
Mood and cognitive clarity -- acts on brain receptors that regulate motivation and mental sharpness
Muscle mass and strength -- maintains lean tissue and metabolic rate
Bone mineral density -- works alongside estrogen to prevent osteoporosis
Cardiovascular health -- emerging data suggests protective effects on blood vessels
How Female Testosterone Differs from Male
The differences are not just about dose. The entire hormonal ecosystem works differently.
Production Sources
Men produce roughly 95% of their testosterone in the testes. Women split production between the ovaries (25%), adrenal glands (25%), and peripheral conversion from precursors like DHEA and androstenedione (50%). This distributed production means that removal of ovaries (oophorectomy) cuts testosterone levels but does not eliminate production entirely.
Binding and Free Testosterone
Women have higher levels of sex hormone-binding globulin (SHBG) than men, which means a larger percentage of total testosterone is bound and inactive. Free testosterone, the biologically active fraction, is what matters clinically. This is why measuring free testosterone alongside total testosterone is essential in women.
Age-Related Decline
In men, testosterone drops about 1-2% per year after age 30. In women, the decline is steeper and starts earlier. By age 40, women have roughly half the testosterone they had at 20. By menopause, levels can drop another 50%. Unlike the relatively gradual male decline, women can experience a sharp drop if they undergo surgical menopause (oophorectomy).
Symptoms of Low Testosterone in Women
Low testosterone in women often gets misdiagnosed as depression, chronic fatigue, or simply "aging." The symptom overlap with other conditions makes it easy to miss.
The hallmark symptoms include:
Decreased libido that does not respond to relationship changes or stress reduction
Persistent fatigue that sleep does not fix
Loss of muscle mass despite consistent exercise
Unexplained weight gain, particularly around the midsection
Brain fog and poor concentration
Flat or depressed mood without a clear psychological cause
There is no FDA-approved testosterone product specifically for women in the United States. This does not mean treatment is unavailable. Clinicians prescribe compounded formulations and off-label use of low-dose male products.
Testosterone Cream
The most commonly prescribed option. Compounded testosterone cream typically comes in concentrations of 1-10 mg/mL. Applied daily to the inner thigh, wrist, or labia, it provides steady absorption and easy dose adjustment.
Typical dose: 5-10 mg/day
Advantages: Precise dosing, easy to titrate, steady levels
Considerations: Transfer risk to partners or children, daily application
Subcutaneous pellets inserted every 3-4 months provide hands-off testosterone delivery. A small incision in the hip allows placement of crystalline testosterone pellets that dissolve slowly.
Typical dose: 50-100 mg per insertion
Advantages: No daily application, consistent levels, no transfer risk
Considerations: Minor procedure required, cannot easily adjust dose once inserted, risk of pellet extrusion
DHEA -- a precursor that converts to testosterone, available over the counter, but conversion rates are unpredictable
Oral testosterone undecanoate -- available in Australia (Andriol), less common in the US due to liver concerns at higher doses
Injections -- rarely used in women due to difficulty achieving low enough doses and fluctuating levels
Dosing Principles
Female testosterone dosing requires a fundamentally different approach than male TRT. The goal is physiological replacement, not supraphysiological levels.
Starting dose: Most clinicians begin at 2.5-5 mg/day of topical testosterone
Maintenance dose: 5-10 mg/day, titrated based on symptoms and blood levels
Target blood levels: Total testosterone 50-70 ng/dL, free testosterone in the upper quartile of the female reference range
Key dosing rules:
Start low, go slow -- begin at the low end and increase every 4-6 weeks based on symptom response
Measure at trough -- check levels before the next application for topicals, or midway between pellet insertions
Watch for signs of excess -- acne, oily skin, facial hair growth, voice changes, or clitoral enlargement indicate the dose is too high
Adjust for SHBG -- women on oral estrogen have higher SHBG and may need slightly higher doses to achieve adequate free testosterone
The landmark 2019 Global Consensus Position Statement, published in the Journal of Clinical Endocrinology and Metabolism and co-signed by multiple international endocrine societies, concluded:
Testosterone therapy can be considered for postmenopausal women with HSDD after exclusion of other causes
Only formulations that achieve physiological testosterone levels should be used
Treatment should be a trial period of 6 months to assess response
There is insufficient evidence to make recommendations for premenopausal women
Safety Data
A 2019 systematic review and meta-analysis by Davis et al. in the Lancet Diabetes and Endocrinology examined data from 36 randomized controlled trials involving over 8,000 women. Key findings:
Testosterone significantly improved sexual function, including desire, arousal, orgasm, and satisfaction
No significant increase in cardiovascular events, breast cancer, or other serious adverse events
Mild androgenic side effects (acne, hair growth) occurred more frequently but were generally manageable
Weight and lipid profiles were not adversely affected
Limitations
The evidence base has gaps. Most trials studied postmenopausal women. Long-term safety data beyond 24 months is limited. There are no large-scale randomized trials on premenopausal women.
Who Should Consider Testosterone Therapy
Testosterone therapy may be appropriate for women who:
Have symptoms consistent with testosterone deficiency (especially decreased libido)
Have confirmed low testosterone levels on blood work
Are postmenopausal or perimenopausal, or have had oophorectomy
Have not responded adequately to estrogen therapy alone
Have no contraindications (hormone-sensitive cancers, severe liver disease, polycythemia)
It is not appropriate for:
Women with active hormone-sensitive breast or endometrial cancer
Women seeking testosterone for athletic performance (supraphysiological dosing carries significant risks)
Pregnant or breastfeeding women
Women with untreated polycythemia
Getting Started
If you suspect low testosterone, here is the process:
Get comprehensive blood work -- total testosterone, free testosterone, SHBG, DHEA-S, estradiol, progesterone, complete metabolic panel, CBC
Rule out other causes -- thyroid dysfunction, iron deficiency, vitamin D deficiency, sleep disorders, and depression can all mimic low testosterone symptoms
Find a knowledgeable provider -- look for clinicians who specialize in female hormone optimization, not just standard OB/GYN or endocrinology. Compare clinics offering women's TRT to find one with the right expertise
Start treatment and track symptoms -- use a symptom diary to objectively measure changes in libido, energy, mood, and other parameters
Recheck labs at 6-8 weeks -- adjust dose based on blood levels and symptom response
Reassess at 6 months -- per the Global Consensus guidelines, evaluate whether treatment is providing meaningful benefit
The Bigger Picture: Testosterone as Part of HRT
Testosterone does not work in isolation. For perimenopausal and postmenopausal women, optimal results come from a comprehensive hormone replacement strategy that may include estradiol, progesterone, and testosterone together.
Estrogen protects the cardiovascular system, bones, and brain. Progesterone protects the uterine lining and supports sleep. Testosterone fills the gap that estrogen and progesterone cannot -- particularly for libido, energy, motivation, and body composition.
This content is for informational purposes only and is not medical advice. Consult a qualified healthcare provider before starting any treatment.
Frequently Asked Questions
Do women really need testosterone?
Yes. Women produce testosterone in the ovaries and adrenal glands. It plays critical roles in energy, libido, mood, bone density, and muscle maintenance. Levels decline significantly with age, especially around menopause.
What is a normal testosterone level for women?
Premenopausal women typically have total testosterone levels between 15-70 ng/dL, with free testosterone between 0.5-5.0 pg/mL. Optimal therapeutic targets are generally 50-70 ng/dL total testosterone.
Is testosterone therapy safe for women?
At physiological doses (5-10mg/day via cream), testosterone therapy has a strong safety profile in women. The 2019 Global Consensus Position Statement endorsed its use for postmenopausal women with HSDD after thorough evaluation.
How is female TRT different from male TRT?
Women use roughly 1/10th to 1/20th the dose men use. Delivery methods favor topical creams and gels over injections. Monitoring focuses on different ranges and includes watching for androgenic side effects like acne or hair changes.
