Testosterone for Women: Benefits, Testing, and Getting the Dosing Right

Yes, Women Need Testosterone

Testosterone is typically discussed in the context of men, but women produce testosterone throughout their lives in the ovaries and adrenal glands. It plays a critical role in energy, libido, muscle maintenance, bone density, mood, and cognitive function. By the time a woman reaches menopause, her testosterone levels have already dropped by approximately 50% from peak levels in her 20s. Yet testosterone testing and replacement remains dramatically underutilized in women's hormone care.

Symptoms of Low Testosterone in Women

The symptoms of low testosterone in women overlap significantly with low estrogen and low thyroid — which is why it is so commonly missed. If you have had your estrogen and thyroid addressed but still have residual symptoms, testosterone may be the missing piece.

• ✓Persistent fatigue that does not fully resolve with sleep or estrogen therapy
• ✓Low libido or absent sexual desire — often more pronounced than the physical changes
• ✓Difficulty building or maintaining muscle despite regular resistance training
• ✓Increased body fat, particularly around the abdomen and thighs
• ✓Brain fog, difficulty concentrating, poor working memory
• ✓Low motivation and flat affect — sometimes mistaken for depression
• ✓Joint pain and poor recovery from exercise
• ✓Reduced clitoral sensitivity

The Labs You Need

Testing testosterone in women requires specific assays and attention to timing. Most standard testosterone tests are calibrated for male ranges and are not sensitive enough to detect meaningful variation in the much lower female range.

• ✓Total Testosterone: Use a sensitive assay (LC-MS/MS) — conventional immunoassay is not accurate at female ranges
• ✓Free Testosterone (calculated): The bioavailable fraction. SHBG heavily influences free T.
• ✓SHBG: High SHBG binds testosterone and reduces free T even when total T looks adequate
• ✓DHEA-S: Adrenal androgen precursor that contributes to testosterone production
• ✓Estradiol and Progesterone: Must be interpreted alongside testosterone — all hormones interact
• ✓Test timing: If premenopausal, test on cycle days 19-21 (mid-luteal phase) for most consistent results

What Optimal Levels Look Like

Conventional testosterone reference ranges for women (5-70 ng/dL in most labs) are so wide as to be nearly useless clinically. Functional medicine practitioners use a narrower optimal range and consider symptoms as much as absolute values. Most women with symptoms and levels in the lower quartile benefit from testosterone support. Optimal free testosterone in women is typically 1-2.5 pg/mL — values below 1.0 pg/mL with symptoms warrant a trial of supplementation.

Treatment Options for Women

Low-dose testosterone therapy for women is typically delivered via topical cream or gel applied to thin-skinned areas. Doses are dramatically lower than male TRT — typically 1-5% of the dose used in men.

• ✓Testosterone cream 1-5mg/day: Applied to inner arm, inner thigh, or vulvar area. Most flexible option for dose titration.
• ✓Testosterone gel: Similar to cream, often more convenient for daily use
• ✓Subcutaneous pellets: 50-75mg pellets every 3-5 months — consistent levels but not adjustable once implanted
• ✓DHEA: Low-dose DHEA (10-25mg for women) raises testosterone and estrogen; useful as a gentler starting point
• ✓Vaginal testosterone: Low-dose vaginal cream targets genitourinary symptoms without raising systemic levels

Benefits and Expected Timeline

Women who respond to testosterone therapy often report significant improvements in quality of life that estrogen and progesterone alone did not provide. Libido improvements are often the first noticeable effect, typically within 4-8 weeks. Energy and motivation changes tend to follow within 8-12 weeks. Body composition improvements — muscle building and fat loss — typically require 3-6 months of consistent levels combined with resistance training.

Monitoring and Safety

Low-dose testosterone in women has an excellent safety profile when monitored appropriately. Recheck total and free testosterone at 6-8 weeks after initiating therapy, then every 3-6 months. Watch for signs of excess: acne, hair thinning, increased facial hair, or clitoromegaly — these indicate the dose is too high and should be reduced immediately. Testosterone should not be used during pregnancy or in women with hormone-sensitive cancers. BioRoot AI's hormone assessment evaluates testosterone alongside all other hormone markers to help identify whether testosterone optimization is appropriate for your specific picture.