Why do I need this report?

Bioavailable testosterone reflects the fraction of testosterone your body can actually use in tissues, which can influence libido, sexual function, fertility-related factors, mood, muscle, and bone health. Because free/bioavailable testosterone can be harder and more expensive to measure than total testosterone—and because levels vary widely between individuals—this DNA report helps you understand your inherited tendencies that may shape hormone availability. It’s a useful next step if you want deeper context beyond total testosterone or if you’re trying to make more informed, personalized decisions about hormone-support strategies.

Why is this report unique?

This report goes beyond generic hormone advice by using a high-resolution genetic analysis: 20,252 SNPs are assessed to estimate your inherited tendencies related to bioavailable testosterone (F). Instead of overwhelming you with a long checklist, it delivers 1 focused, personalized recommendation—so you get a clear, actionable next step tied directly to your genetic results.

How is the recommendations list built?

Recommendations are built by evaluating which genetic variants you carry, how strongly they’re associated with bioavailable testosterone in research, and the overall direction and magnitude of their predicted impact. The final recommendation is prioritized using scientific evidence quality, consistency across studies, and practical relevance—favoring actions (such as supplement options) that are most likely to be meaningful given your genetic profile.

What is bioavailable testosterone and how is it different from total testosterone?

Total testosterone includes all testosterone in the bloodstream, much of which is bound to proteins and not immediately active. Testosterone circulates in three main forms: bound to SHBG, weakly bound to albumin, and free (unbound). Free testosterone is the active fraction, and together with the albumin-bound fraction that can readily detach, it makes up bioavailable testosterone—often roughly 50% of total testosterone. Because bioavailable testosterone is the portion that can enter tissues and exert effects, it can be more informative for symptoms related to sexual function, fertility, muscle, mood, and bone health than total testosterone alone.

Can genetics affect free or bioavailable testosterone levels in women?

Yes. Research suggests that a substantial portion of the variation in bioavailable testosterone—estimated around 45%—may be influenced by genetics. This report analyzes 20,252 SNPs to identify inherited patterns that may affect testosterone availability, which can be relevant for sexual health, reproductive health, and long-term bone and metabolic outcomes. Genetics doesn’t determine your hormone levels on its own—age, medications, body composition, and conditions such as PCOS can also play major roles—but it can explain why two people with similar lifestyles may have very different hormone profiles and symptom experiences.

Save $30

Bioavailable Testosterone (F)

Rated 4.89 out of 5 based on 9 customer ratings

4.9 (10 reviews)

Bioavailable Testosterone (F)

Rated 4.89 out of 5 based on 9 customer ratings

4.9 (10 reviews)

The report provides up to 1 personalized recommendations based on over 20,252 genetic variants analyzed. Purchase a DNA kit to generate your genetic results. If you've already got one, you're all set to continue. View sample report.

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Trusted by 200,000+ users & 2,000+ doctors

Proven track record: 3+ million analyses delivered

Analyzes 20,252 Genetic Variants

Up to 1 DNA-Based, Science-Backed Recommendations

Bioavailable Testosterone (F)

$59 $29

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Product features

Note: To generate your personalized report, purchase a SelfDecode DNA kit. If you already have one, you’re ready to proceed.

Understanding Your Bioavailable Testosterone (F) Risks: A DNA-Based Report

Have you ever wondered why your libido, energy, or strength doesn’t match what you’d expect—even when your “total testosterone” looks normal? Are you dealing with symptoms that could be tied to hormone availability, like changes in sexual function, fertility concerns, or bone health worries? If you’ve been told “your labs are fine,” this report helps you look deeper at the portion of testosterone your body can actually use: bioavailable testosterone.

Key Report Highlights

The Bioavailable Testosterone (F) DNA Report analyzes 20,252 genetic variants (SNPs) linked to how much testosterone is available for your tissues—supporting insights relevant to sexual health, reproductive function, and bone strength. You’ll also receive 1 targeted, personalized recommendation. A key takeaway: only about 2–3% of testosterone circulates as “free,” and free testosterone (plus the fraction loosely bound to albumin) makes up bioavailable testosterone—roughly 50% of total testosterone—meaning availability can matter as much as total levels.

Personalized, Actionable Recommendations

Your results translate genetic findings into a personalized action step, with recommendations tailored to your DNA and focused on practical support. This report includes supplement recommendations, designed to align with your predicted bioavailable testosterone tendencies and your health goals. Examples of the kind of guidance you may see include targeted nutrient support that may help maintain healthy hormone metabolism or supplements selected to support sexual function and overall hormonal balance—grounded in the genetic signals identified in your analysis.

User-Friendly Format and Trust

The user-friendly format of this report emphasizes clarity, offering practical, easy-to-follow insights to integrate seamlessly into your lifestyle. Whether you’re a novice or seasoned biohacker, you’ll find the layout accessible and the information straightforward.

This report is grounded in the latest scientific research and trusted by over 150,000 users and 1,000+ doctors worldwide. It’s not only comprehensive but also complies with stringent privacy laws, being HIPAA and GDPR compliant.

Getting Started

Ready to unlock the secrets within your DNA? Purchase a DNA kit for an easy at-home collection process and gain the insights you need for a proactive, personalized approach to wellness. Don’t wait—take the first step to understanding your health today.

Product FAQs

: Bioavailable testosterone reflects the fraction of testosterone your body can actually use in tissues, which can influence libido, sexual function, fertility-related factors, mood, muscle, and bone health. Because free/bioavailable testosterone can be harder and more expensive to measure than total testosterone—and because levels vary widely between individuals—this DNA report helps you understand your inherited tendencies that may shape hormone availability. It’s a useful next step if you want deeper context beyond total testosterone or if you’re trying to make more informed, personalized decisions about hormone-support strategies.
: This report goes beyond generic hormone advice by using a high-resolution genetic analysis: 20,252 SNPs are assessed to estimate your inherited tendencies related to bioavailable testosterone (F). Instead of overwhelming you with a long checklist, it delivers 1 focused, personalized recommendation—so you get a clear, actionable next step tied directly to your genetic results.
: Recommendations are built by evaluating which genetic variants you carry, how strongly they’re associated with bioavailable testosterone in research, and the overall direction and magnitude of their predicted impact. The final recommendation is prioritized using scientific evidence quality, consistency across studies, and practical relevance—favoring actions (such as supplement options) that are most likely to be meaningful given your genetic profile.
: Total testosterone includes all testosterone in the bloodstream, much of which is bound to proteins and not immediately active. Testosterone circulates in three main forms: bound to SHBG, weakly bound to albumin, and free (unbound). Free testosterone is the active fraction, and together with the albumin-bound fraction that can readily detach, it makes up bioavailable testosterone—often roughly 50% of total testosterone. Because bioavailable testosterone is the portion that can enter tissues and exert effects, it can be more informative for symptoms related to sexual function, fertility, muscle, mood, and bone health than total testosterone alone.
: Yes. Research suggests that a substantial portion of the variation in bioavailable testosterone—estimated around 45%—may be influenced by genetics. This report analyzes 20,252 SNPs to identify inherited patterns that may affect testosterone availability, which can be relevant for sexual health, reproductive health, and long-term bone and metabolic outcomes. Genetics doesn’t determine your hormone levels on its own—age, medications, body composition, and conditions such as PCOS can also play major roles—but it can explain why two people with similar lifestyles may have very different hormone profiles and symptom experiences.

WHY SELFDECODE?

Empowering Your Well-being Journey

This personalized health report is powered by SelfDecode's cutting-edge AI technology, designed to unlock a deeper understanding of your health potential. We're committed to providing you with the most accurate and actionable insights to guide your well-being journey.

Most Accurate
Polygenic Risk Scoring

We leverage cutting-edge algorithms and analyze a massive dataset of 2 million people to deliver the most precise assessment of your genetic health predispositions. Our advanced approach takes into account your ancestry - which is often overlooked by other methods - to provide you with the most accurate risk assessment. This ensures that the risk scores you receive are based on the latest scientific evidence and are truly personalized to your genetic makeup.

Cutting-Edge AI &
Machine Learning

We have invested 20 million dollars developing our AI and machine learning models. Our patent-pending technology provides you with the most personalized health insights and recommendations by taking into account your unique DNA, lifestyle, labs, symptoms, conditions and health goals. This empowers you to make informed decisions tailored to your specific needs.

Analyzes 200 Million Variants & Sophisticated Recommendation Engine

We go beyond the basics by analyzing a staggering 200 million genetic variants to provide the most comprehensive picture of your health potential. Our sophisticated recommendation engine leverages this deep analysis to provide personalized and actionable insights to optimize your well-being journey.

Built by Leading
Scientists & Engineers

A dedicated team of over 60 scientists and engineers is continuously innovating and developing our technology, ensuring it remains at the forefront of personalized health.

Reviews

Rated 4.89 out of 5 based on 9 customer ratings

4.9 (10 reviews)

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Stephanie G.

Rated 5 out of 5
I’m a 41 year old runner and I kept blaming “aging” for low drive, flat workouts, and slower recovery. The Bioavailable Testosterone (F) report finally explained the difference between total testosterone and what is actually available, and why stress, sleep, and binding proteins can matter for women. The action steps felt doable, I tightened my sleep schedule, added two strength sessions, and tried the suggested geranylgeraniol supplement. Within a month my training logs looked different, less soreness, better motivation, and fewer mid afternoon crashes. It also helped me discuss labs with my clinician without feeling lost.
Dmitri Z.

Rated 5 out of 5
Not usually one to bother with reviews, but this blew me away. Learned some legit stuff about my hormones I never saw in bloodwork. Didn’t expect to get so much out of it, honestly.
Sara R.

Rated 5 out of 5
أنا امرأة في أواخر الثلاثينات وأعاني من تعب ونقص رغبة وتقلب مزاج حول الدورة. تقرير Bioavailable Testosterone (F) أعطاني تفسيرًا منطقيًا لكيف يمكن أن يؤثر التستوستيرون المتاح حيويًا على الطاقة والكتلة العضلية حتى عند النساء. أحببت أنه فرّق بين الهرمون الكلي والمتاح، وربط ذلك بنمط النوم والضغط. جرّبت توصية مكمل Geranylgeraniol لمدة ثلاثة أسابيع مع تحسين البروتين وتمارين المقاومة الخفيفة، ولاحظت ثباتًا أفضل في المزاج وتركيزًا أعلى في العمل. صار عندي أسئلة أدق لطبيبتي بدل التخمين.
Josh Z.

Rated 5 out of 5
I never write reviews but this actually surprised me. Totally thought it would be just generic info, but it got weirdly specific about things I never mentioned anywhere. If you’re skeptical like me, you might actually like this.
Ken U.

Rated 5 out of 5
I actually learned something about my hormone levels I didn’t expect.

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Bioavailable Testosterone (F)

Product features

Understanding Your Bioavailable Testosterone (F) Risks: A DNA-Based Report

Key Report Highlights

Personalized, Actionable Recommendations

User-Friendly Format and Trust

Getting Started

Product FAQs

Why do I need this report?

Why is this report unique?

How is the recommendations list built?

What is bioavailable testosterone and how is it different from total testosterone?

Can genetics affect free or bioavailable testosterone levels in women?

WHY SELFDECODE?

Empowering Your Well-being Journey

Most AccuratePolygenic Risk Scoring

Cutting-Edge AI &Machine Learning

Analyzes 200 Million Variants & Sophisticated Recommendation Engine

Built by Leading Scientists & Engineers

Reviews

Related Products

Most Accurate
Polygenic Risk Scoring

Cutting-Edge AI &
Machine Learning

Built by Leading
Scientists & Engineers