FREE TESTOSTERONE
Free testosterone is the biologically active form of testosterone that is immediately available for your body to use. It plays an important role in supporting energy, strength, muscle development, motivation, metabolism, and sexual health.
Sample Type
ARM BLOOD
Fast results
3 DAYS
What is Free Testosterone?
Unlike total testosterone, free testosterone represents the small portion of hormone that is not bound to proteins and is readily available to interact with your body's tissues. Because this active form is responsible for many of testosterone's biological effects, it often provides a more meaningful picture of how your hormones are functioning on a day to day basis.
Free testosterone levels naturally fluctuate with age, stress, sleep quality, nutrition, exercise, body composition, medications, and overall health. Changes may occur gradually over months or years, making trend analysis significantly more valuable than relying on a single laboratory result.
Regular monitoring allows you to establish your personal baseline and observe how lifestyle changes, weight management, training programs, or hormone optimization strategies may influence your hormone status over time. Tracking free testosterone can also help explain changes in energy, recovery, muscle development, motivation, mood, and physical performance before more noticeable symptoms develop.
Monitoring trends, not just individual results, provides a clearer understanding of your body's hormonal health and supports informed decisions that promote long-term wellness and vitality.
Symptoms of Imbalanced Free Testosterone
Low or high levels may show up in many ways.
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Lower energy or fatigue
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Reduced motivation
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Difficulty concentrating
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ED related issues
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Difficulty building muscle
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Poor exercise recovery
Better Together
These tests work in sync to deliver more meaningful insights.
Complete the picture with:
Total Testosterone
You may also consider:
SHBG
Featured product
Monthly Membership
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A personalized health membership that gives you access to one biomarker test each month.
Monitor key aspects of your health from home with convenient saliva collection or a painless arm blood collection device, professional laboratory analysis, easy-to-understand results and ongoing support.
How does the membership work?
Simply choose one eligible biomarker each month from our growing test menu. Your collection kit is shipped directly to your home, and once your sample is processed, you'll receive secure online results with educational insights to help you better understand your health.
Can I skip or cancel anytime?
Yes. You can skip a month, pause your membership, or cancel anytime through your account. There are no long-term commitments or cancellation fees.
Is this covered by insurance?
ALYX is a direct to consumer wellness membership designed to provide affordable, convenient access to biomarker testing without the need for insurance, expensive copays or deductibles, or a doctor's visit.
While ALYX does not bill insurance directly, we can provide an itemized receipt that you may submit to your insurance provider for possible reimbursement. Reimbursement is subject to your individual insurance plan and benefits.