Price comparison · verified 2026-09-18
Iodine test price: TestWell vs JustLabs
Short answer
A Iodine test costs $45.99 all-in at TestWell versus $65.00 at JustLabs — $19.01 (29%) less as of 2026-09-18. JustLabs's $37.00 sticker excludes $28.00 in per-order fees; TestWell's $39.99 sticker plus the single $6.00 lab fee is the whole price. TestWell draws at Labcorp; JustLabs uses Quest Diagnostics.
How do the prices compare line by line?
| TestWell | JustLabs | |
|---|---|---|
| Sticker price | $39.99 | $37.00 |
| Per-order fees | $6.00 lab processing fee (once per order) | $18.00 lab draw fee + $10.00 physician order fee |
| All-in for this test alone | $45.99 | $65.00 |
| Lab that runs it | Labcorp | Quest Diagnostics |
| Results | 3–7 business days | 1-2 business days |
| Doctor's order | Included — physician network authorizes every order | Included |
| HSA / FSA | Accepted | Accepted |
| States | 49 (all but NY via Quest/Labcorp; BioReference covers NY & NJ) | 47 |
TestWell prices are live from the catalog and are what checkout charges. JustLabs prices were read from its public ordering pages on 2026-09-18; all-in assumes one test ordered alone.
Is it the same test?
It is the same analyte with the same clinical meaning, run at a different lab: TestWell at Labcorp, JustLabs at Quest Diagnostics. Reference ranges can differ slightly between labs, so compare results within one lab when trending over time.
Where does the price difference come from?
JustLabs lists a lower-looking sticker and adds a $18.00 lab draw fee and a $10.00 physician order fee at checkout, so a single test costs $65.00. TestWell's $39.99 sticker plus one $6.00 lab processing fee — $45.99 — is the whole price. The fee gap narrows when several tests share one order at either company.
When is JustLabs the better choice?
- Multi-test orders: from two tests up, JustLabs usually totals less because its $28 in fees is paid once — their 4-test Basic Wellness Panel is $30 + $28 = $58 versus TestWell's General Wellness Panel at $95.99 all-in ($60.99 in NY/NJ, where JustLabs doesn't operate)
- Eight single tests are cheaper at JustLabs even after fees, mostly specialty assays where their sticker is far below ours: heavy metals panel, Omega-3 Index, LH, prolactin, thyroid antibodies, PSA free & total, and by about a dollar CoQ10 and folate
- Faster quoted turnaround (1-2 business days) on many routine tests
- You're ordering two or more tests in one Quest draw and want the lowest total — JustLabs' $28 in fees is paid once, so bigger orders favor them.
- You want Spanish-language test pages; TestWell's Spanish mirror is still rolling out.