The two numbers a growth-hormone protocol is monitored by
The short answer
GH + IGF-1 Panel bundles 2 tests — IGF-1 (Insulin-like Growth Factor) and Growth Hormone (GH), Serum — for $79.99 plus one $6 lab processing fee (about $39.99 per test). Fast 8–12 hours before the draw; results post in 2–4 business days. Physician-authorized with no doctor's visit or insurance needed; one draw at Quest or Labcorp.
TestWell Price
$79.99
+ $6 lab processing fee
Growth hormone and IGF-1 are two views of the same axis, and they are most useful side by side. GH is released by the pituitary in short pulses — mostly during deep sleep and after exercise — so a single serum GH level is a snapshot that can read near zero in a healthy adult; IGF-1, made by the liver in response to GH, holds steady through the day and is the marker clinicians use to judge overall GH activity, reported here with an age- and sex-adjusted Z-score. Together they answer the two questions a GH-related protocol raises: is the signal there (GH), and is the body responding (IGF-1). What this pair does not do is diagnose growth hormone deficiency or excess — that is made with stimulation or suppression testing under a clinician — so read a low or high result as a reason to talk to your provider, not a diagnosis. Draw fasting, in the morning, after 30 minutes of rest; if you inject peptides, draw at trough so the numbers compare from cycle to cycle. Both tests run at Quest or Labcorp (BioReference in New York and New Jersey).
Sample Type
Blood draw
Fasting
Required
Results In
2–4 business days · typical; varies by lab and draw day
Biomarkers
2 across 2 tests
2 individual tests · 2 biomarkers measured — each test linked so you can learn more.
Fast 8–12 hours (water is fine) and sit quietly for 30 minutes before the draw. Morning draw preferred; if you inject peptides, draw at trough — before the next dose. Stop high-dose biotin 72 hours before (immunoassay). Keep prescribed medications unless your prescriber says otherwise.
What can throw off this result
Physician-reviewed “Before your test” pages — what each factor does, for how long, and what to do about it.
A GH + IGF-1 Panel costs $79.99 at TestWell — $85.99 all-in, since the $6 lab processing fee is charged once per order and there is no draw or physician fee. With insurance you pay your plan's negotiated rate against your deductible; TestWell's price is fixed before the draw and 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.
Compare more: Quest Diagnostics price list · Labcorp price list · Quest vs Labcorp · Lab test price checker
GH + IGF-1 Panel results are typically ready in 2–4 business days after your draw at Quest or Labcorp. TestWell emails you the moment they post, and your results dashboard shows each marker against its reference range with a plain-English explanation.
Yes. Fast 8–12 hours (water is fine) and sit quietly for 30 minutes before the draw. Morning draw preferred; if you inject peptides, draw at trough — before the next dose. Stop high-dose biotin 72 hours before (immunoassay). Keep prescribed medications unless your prescriber says otherwise. The fasting before blood work guide covers how long to fast, what you can drink, and which results eating changes.
Peptides and GLP-1s can change a GH + IGF-1 Panel result without anything being wrong. Peptides and GLP-1s can raise IGF-1 — the marker that shows the peptide is working — and the one to keep inside the age-adjusted reference range. Each is explained on our physician-reviewed "Before your test" pages; when one applies, remove it and retest.
Order the GH + IGF-1 Panel online from TestWell for $79.99 (plus a $6 per-order lab processing fee) — no doctor's visit, referral or insurance needed. A licensed physician authorizes the order, then you walk into any Quest or Labcorp patient service center near you for the draw (the lab locator on our site lists the closest ones by ZIP code), and results arrive in 2–4 business days.
Medically reviewed by Youmna DiStefano, MD · Last reviewed October 2026
TestWell Price
$79.99
+ $6 lab processing fee at checkout
No insurance needed · HIPAA compliant
Get Peptide Therapy Monitoring Panel
19 tests — 17 more than this panel — for $180.00 more
Individual tests that complement this panel
GH + IGF-1 Panel
$79.99