The modern thyroid check — free hormones, measured directly
The short answer
Essential Thyroid Panel bundles 3 tests — TSH (Thyroid Stimulating Hormone), Free T4 (Thyroxine) and Free T3 (Triiodothyronine) — for $79.99 all-in (about $26.66 per test). No fasting is needed; results post in 1–3 business days. Physician-authorized with no doctor's visit or insurance needed; one draw at Quest or Labcorp.
Other Labs
Starting at $115
+ lab fees
TestWell
$79.99
The Essential Thyroid Panel answers the first thyroid question — is it working? — with the three markers that matter most: TSH (the pituitary's control signal), Free T4 (the storage hormone your thyroid makes), and Free T3 (the active hormone your cells use). Unlike legacy panels that estimate free hormone levels from Total T4 and T3 Uptake, this panel measures the free, bioavailable hormones directly — the modern standard, and unaffected by the binding-protein shifts that skew estimates during pregnancy, on birth control, or with liver conditions. If results point to autoimmune thyroid disease or conversion problems, add TPO Antibodies or Reverse T3 below, or step up to the Complete Thyroid Panel which bundles both.
3-marker thyroid function screen: TSH plus directly measured Free T4 and Free T3. The modern first-line thyroid workup — evaluates pituitary signaling, storage hormone, and active hormone in one draw.
Anyone screening thyroid function for the first time, people with fatigue/weight/temperature/mood symptoms who want more than a TSH-only screen, and anyone on thyroid medication tracking free hormone levels between visits.
Sample Type
Blood draw
Fasting
Not required
Results In
1–3 business days
Biomarkers
3 across 3 tests
3 individual tests · 3 biomarkers measured — each test linked so you can learn more.
No fasting required. Best drawn in the morning at a consistent time when tracking trends. If you take thyroid medication, draw before your morning dose. Stop biotin supplements 72 hours before the draw — biotin interferes with thyroid immunoassays.
A Essential Thyroid Panel costs $79.99 at TestWell — $85.99 all-in when ordered alone, because the $6 lab processing fee is charged once per order, with no draw fee or physician fee added. With insurance, what you pay depends on your deductible and your plan's negotiated rate; TestWell's price is fixed before the draw and is HSA/FSA-eligible.
| Where you order | Price | One test, all-in | Notes |
|---|---|---|---|
| TestWell (drawn at Quest or Labcorp) | $79.99 | $85.99 | Includes the one $6 lab processing fee, charged once per order |
Competitor prices are read from the linked public pages and re-checked regularly; the labs' sites may add taxes or change prices without notice.
Starting at $115 at other labs
TestWell Price
$79.99
+ $6 lab processing fee at checkout
No insurance needed · HIPAA compliant
Get Complete Thyroid Panel
All 4 tests including all add-ons — save $31.98 vs adding individually
Individual tests that complement this panel
Essential Thyroid Panel
$79.99