The Free Testosterone Test is a specialized blood test that measures the amount of unbound, biologically active testosterone circulating in your bloodstream. Free testosterone is the form of testosterone that is readily available for the body to use, allowing it to directly influence functions such as energy levels, muscle strength, mood, libido, and reproductive health.
Unlike total testosterone, which measures all testosterone combined, this test focuses specifically on the active hormone, making it especially useful when symptoms are present but total testosterone levels appear normal. Measuring free testosterone provides a more accurate picture of how much testosterone is actually available to your body at the cellular level.
This test is commonly used to evaluate androgen excess or deficiency related to gonadal, adrenal, or hormonal function in both men and women.
What Is Included In This Test?
This test measures:
- Free Testosterone: The portion of testosterone that is not bound to proteins such as sex hormone-binding globulin (SHBG) or albumin and is immediately available for biological activity
Because free testosterone represents the hormone your body can actively use, this test can help clarify hormonal imbalances that may not be detected through total testosterone testing alone.
Abnormal results may help guide further hormone evaluation, diagnosis, or treatment planning.
Who Should Consider This Test?
The Free Testosterone Test may be helpful for both men and women experiencing symptoms related to hormone imbalance.
Men may consider this test if they experience:
- Low libido or decreased sex drive
- Erectile dysfunction
- Fatigue or low energy
- Decreased muscle tone or strength
- Mood changes or irritability
- Increased body fat or breast tissue
- Fertility concerns
Low free testosterone in men may be associated with conditions such as hypogonadism, pituitary disorders, or testicular dysfunction.
Women may consider this test if they experience:
- Irregular or missed menstrual periods
- Infertility concerns
- Excess facial or body hair growth
- Thinning scalp hair
- Persistent acne
- Low libido
- Symptoms related to menopause
This test may also support evaluation of conditions such as androgen excess, adrenal disorders, or hormone-related reproductive concerns.
Convenient, No-Appointment Testing
To complete your test:
- Order online through our website
- Use the lab locator to find a nearby testing location
- Walk in; no appointment required
- Access your results securely in your HealthLabs.com account within one to three business days
110% Price Guarantee!
If you find the same test for a lower price from a comparable provider, contact us. We not only match the price, we beat it by an additional 10 percent of the difference.