Total T3

Total triiodothyronine (bound and free)

3/22Providers
Thyroid FunctionCategory
80-200 ng/dLReference

Limited Availability

3 providers include this

Category

Thyroid Function

Reference Range

80-200 ng/dL

What is Total T3?

Total triiodothyronine (bound and free)

Why It Matters

Active thyroid hormone. Measures both protein-bound and free T3. Affected by binding protein levels. Used with Free T3 for complete thyroid assessment.

Reference Range: 80-200 ng/dL

Which Providers Test Total T3?

Marek Complete
Included in panel
Marek Exec.
Included in panel
Vitality Elite
Included in panel

Full Provider Comparison

ProviderIncludesAnnual CostBiomarkers
SuperpowerSuperpower—$199100+ (150 with ratios)
WHOOP Advanced LabsWHOOP Advanced Labs—$34965
Labcorp OnDemandLabcorp OnDemand—$39830+
Life ExtensionLife Extension—$48640+
EverlywellEverlywell—$46883
Mito HealthMito Health—$349100+
InsideTrackerInsideTracker—$68054
Function HealthFunction Health—$365100+
Marek Health BaseMarek Health Base—$25065
Marek Health ComprehensiveMarek Health Comprehensive—$49570+
Marek Health CompleteMarek Health Complete✓$895100+
Marek Health ExecutiveMarek Health Executive✓$1950150+
BlueprintBlueprint—$399100+
Quest HealthQuest Health—$Varies75+
Empirical HealthEmpirical Health—$190100+
Oura Health PanelsOura Health Panels—$9950
SiPhox HealthSiPhox Health—$12560
Hims Labs BaseHims Labs Base—$19950
Hims Labs AdvancedHims Labs Advanced—$499120+
HealthspanHealthspan—$418880+
Vitality Blueprint StandardVitality Blueprint Standard—$37585
Vitality Blueprint EliteVitality Blueprint Elite✓$700129

Ready to Test Total T3?

3 providers include this biomarker in their panels

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Frequently Asked Questions

What does Total T3 test for?
Total T3 is a thyroid function biomarker. Total triiodothyronine (bound and free) The normal reference range is 80-200 ng/dL.
Which providers include Total T3?
3 of 22 providers include this test:Marek Complete, Marek Exec., Vitality Elite.
How often should I test Total T3?
For most people, testing 2-4 times per year is recommended to establish baseline levels and track trends. Consult your healthcare provider for personalized recommendations.
What is the optimal range?
The standard reference range is 80-200 ng/dL. Many functional medicine practitioners recommend tighter optimal ranges for peak health. Your ideal range may vary based on age, sex, and health goals.
Why is Total T3 important?
Active thyroid hormone. Measures both protein-bound and free T3. Affected by binding protein levels. Used with Free T3 for complete thyroid assessment.

Medical Disclaimer

This information is for educational purposes only and is not medical advice. Always consult with a qualified healthcare provider about your specific health needs.