Testosterone Test Options

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Pick the testosterone measurement that answers your question

Each of these answers a different testosterone question — one value or the full set.

Do your total and free results disagree? the fullest option here — adds bioavailable testosterone with SHBG and albumin View full testosterone panel $100 $80
Just need one total testosterone number? one result, measured by mass spectrometry View total LC/MS/MS test $78 $62
Only following your free testosterone? the free value on its own, with no total result View free LC/MS/MS test $99 $79
Prefer the immunoassay version of the total? a total result by immunoassay rather than mass spectrometry View male total IA test $69 $55

Featured tests

HSA/FSA accepted

Testosterone, Free, Bioavailable and Total, LC/MS/MS

Pinpoint the cause of low energy
Reveal hidden factors affecting muscle growth
Clarify the reasons behind mood swings

• All lab fees included

-20% $80 about $7 per marker

List price ~~$100~~

HSA/FSA accepted

Testosterone Total LC/MS/MS

Pinpoint the cause of low energy
Reveal hidden factors affecting muscle growth
Confirm your hormone levels with certainty

• All lab fees included

-20% $62 about $9 per marker

List price ~~$78~~

HSA/FSA accepted

Testosterone, Free, LC/MS/MS

Pinpoint the cause of low energy
Reveal hidden factors affecting muscle growth
Confirm your hormone balance with precision

• All lab fees included

-20% $79 about $9 per marker

List price ~~$99~~

HSA/FSA accepted

Testosterone, Total, Male, IA (MALES ONLY)

Reveal the cause of low energy
Confirm your testosterone levels accurately
Pinpoint reasons for muscle loss

• All lab fees included

-20% $55 about $6 per marker

List price ~~$69~~

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A testosterone test measures testosterone in one or more forms to help answer whether a total value, free value, or a binding-protein-adjusted view best fits your question. Available options range from Total Testosterone by LC/MS/MS to a panel measuring total, free, and bioavailable testosterone along with albumin and sex hormone binding globulin (SHBG). Compare whether you want a single measurement or results that show how binding proteins relate to the testosterone available in circulation. The next decision is whether total testosterone alone answers your reason for testing or whether free, bioavailable, albumin, and SHBG results would add useful detail.

What Total, Free, and Bioavailable Testosterone Show

Total testosterone measures the overall amount of testosterone circulating in the blood. Free testosterone refers to the portion not bound to proteins, while bioavailable testosterone includes free testosterone and the portion loosely associated with albumin. The Testosterone, Free, Bioavailable and Total, LC/MS/MS panel measures all three, plus albumin and sex hormone binding globulin (SHBG). SHBG binds testosterone and helps explain why a total result and a free result do not always point in the same direction. Albumin is part of the bioavailable calculation. Those relationships are especially useful when a single total result does not fully answer the question being evaluated.

Why the Testing Method and Test Scope Matter

Testosterone Total LC/MS/MS measures total testosterone using LC/MS/MS, and Testosterone, Free, LC/MS/MS measures free testosterone using LC/MS/MS. The Testosterone, Total, Male, IA (MALES ONLY) test instead reports total testosterone for adult males by immunoassay. These options do not report the same set of measurements, so results should not be treated as interchangeable. A total-only result answers a different question from a panel that also reports SHBG, albumin, free testosterone, and bioavailable testosterone. For symptoms, unexpected results, or decisions involving prescribed treatment, review the findings with a qualified healthcare professional rather than relying on one number alone.

Testosterone FAQ

A testosterone test measures testosterone in the blood, either as total testosterone, free testosterone, or several related values. Total testosterone reflects the overall circulating amount. Free testosterone reflects the unbound portion. The broader LC/MS/MS panel also reports bioavailable testosterone, albumin, and SHBG, which help show how protein binding relates to the amount available to tissues.

Testosterone, Free, Bioavailable and Total, LC/MS/MS includes total testosterone, free testosterone, bioavailable testosterone, albumin, and SHBG. It is the option for someone who wants to see total testosterone alongside the proteins involved in binding it. The other listed tests focus on either total testosterone or free testosterone alone, so they answer narrower measurement questions.

Total testosterone is the complete amount measured in circulation, including testosterone bound to proteins and the unbound fraction. Free testosterone is the unbound fraction. Because SHBG binds testosterone, two people with similar total results can have different free results when their SHBG differs. Looking at both values is useful when protein binding is part of the question.

Bioavailable testosterone combines free testosterone with testosterone loosely bound to albumin. It differs from total testosterone because total also includes testosterone bound to SHBG. In the Testosterone, Free, Bioavailable and Total, LC/MS/MS panel, albumin and SHBG accompany the bioavailable result, helping show the binding relationships behind the reported values.

Albumin and SHBG are proteins that bind testosterone in different ways. SHBG binding is used to understand why free testosterone can differ from what a total testosterone result alone suggests. Albumin is relevant to bioavailable testosterone because albumin-bound testosterone is included in that measure. Their results add a specific explanation for differences among total, free, and bioavailable values.

Yes. Testosterone Total LC/MS/MS reports total testosterone by LC/MS/MS, while Testosterone, Total, Male, IA (MALES ONLY) reports total testosterone for adult males by immunoassay. Both are total-testosterone options, but the stated method differs. Neither test reports free testosterone, bioavailable testosterone, albumin, or SHBG, so neither provides the binding-protein information available in the broader panel.

A free testosterone test is useful when the unbound testosterone measurement is the specific result of interest. Testosterone, Free, LC/MS/MS reports free testosterone alone, whereas the broader LC/MS/MS panel places free testosterone beside total testosterone, bioavailable testosterone, albumin, and SHBG. That added information helps relate the free result to total testosterone and protein binding.

No. A testosterone result does not diagnose the cause of symptoms by itself. Total, free, bioavailable testosterone, albumin, and SHBG describe different parts of testosterone status, but symptoms and medical history affect interpretation. Results outside an expected range, persistent symptoms, or questions involving prescribed treatment warrant professional review.

The relationship among total testosterone, free testosterone, SHBG, and albumin affects interpretation. A total result does not show how much testosterone is unbound, and a free result does not show the total amount in circulation. Comparing results obtained under similar testing circumstances also supports more meaningful trend discussions with a healthcare professional.

Ordering & Results FAQ

You'll receive it via email within 60 seconds of your order unless it requires additional processing (only very complex orders do).

Many general wellness test results are typically available online within 2-3 business days. However, some tests will require additional processing time. You will immediately receive an email & SMS notification when your results are available.

We do not share your results with your physician, insurance company, or any other third party.