Free and Bioavailable Testosterone
Free and Bioavailable Testosterone
This test measures your free and bioavailable Testosterone levels, which is a measure of the free or active form of testosterone levels in your blood. Unbound or active testosterone is important for muscle growth, mood regulation, and libido.
We advise you share your results with your healthcare provider. Together, you can discuss your options so you can make informed decisions about your health journey.
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Age : 18 Years or older
Test Method : RedDrop At-Home Collection Device
Sample Type : Blood
More on the test and what's measured :
Testosterone (Free and Bioavailable)
Testosterone (Free and Bioavailable)
Testosterone is the primary male sex hormone produced in the testis. It plays an important role in reproductive health, muscle mass, fat distribution, bone density, libido, and overall health. Low testosterone may cause low libido, fatigue, loss of muscle, and changes in mood. High testosterone may cause irritability or aggression, enlarged prostate, and acne.
Limitations : Testosterone levels decline throughout the day. It is best to take this test first thing in the morning.
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Why Consider This Test
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Experiencing The Following Symptoms
- Fatigue
- Decreased muscle mass
- Changes in weight
- Increased body fat
- Hair loss or abnormal hair growth
- Changes in sleep
- Difficulty concentrating
- Depression
- Low libido or erectile dystunction
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Evaluating Fertility and Reproductive Health
Testosterone plays an important role in sperm production and libido.
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Monitoring Testosterone Therapy
If you are on testosterone replacement therapy (TRT), you may consider monitoring your levels over time.
Test Performance
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FDA Approved Test
Unilab uses kits that are FDA approved.
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Validated In-House
All tests are run in-house on our new validated collection device.
Here's How It Works
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Purchase Test
Place your order online. A medical professional will review your order. Expect to receive a test kit within 2-3 days.
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Register Kit
Once you receive your kit, scan the barcode to get started. You will be asked a few questions to complete your registration.
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Collect Sample
Follow the instructions in your kit to collect your sample. Send your sample back to Unilab using the prepaid envelope.
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Review Results
Results are ready within 1-2 days of receiving your sample. You will receive a text notification when your test results are ready.
Frequently Asked Questions
Who should take this test?
You should take this test if you are experiencing fatigue, decreased muscle mass, weight changes, increased body fat, hair loss or abnormal hair growth, sleep disturbances, difficulty concentrating, depression, low libido or erectile dysfunction.
What is the best time of day to take this test?
Your testosterone levels are highest in the morning and decline throughout the day. It is best to take this test first thing in the morning when your levels are at their highest.