The gold standard for peptide therapy monitoring
The short answer
Peptide Therapy Monitoring Panel bundles 19 tests — IGF-1 (Insulin-like Growth Factor), TSH (Thyroid Stimulating Hormone) and Comprehensive Metabolic Panel plus 16 more — for $259.99 all-in (about $13.68 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.
Other Labs
Starting at $500
+ lab fees
TestWell
$259.99
The Standardized Peptide Panel is designed for patients undergoing peptide therapy (BPC-157, GHK-Cu, Thymosin, CJC/Ipamorelin, and others). It combines 53 biomarkers across 19 targeted tests that clinicians use to monitor peptide therapy efficacy and safety. IGF-1 tracks growth hormone axis response — the primary marker for GH-releasing peptides. A full thyroid panel (TSH, Free T3, Free T4) catches thyroid shifts. Testosterone (Free & Total) plus SHBG together give the true bioavailable testosterone picture (Total alone is misleading without knowing how much is bound). Estradiol, DHEA-S, and Cortisol assess the rest of the hormonal landscape. CMP, CBC, and a Lipid Panel monitor metabolic and organ health. HbA1c and Insulin evaluate glucose metabolism, which peptides like CJC-1295 can influence. hs-CRP tracks systemic inflammation. Ferritin, Iron, and Vitamin B12 ensure nutrient status supports therapy. Vitamin D rounds out the picture as a co-factor for immune and hormonal function. Recommended at baseline, 4–6 weeks into therapy, then quarterly.
Baseline and periodic monitoring for peptide therapy — GH-releasing peptides (CJC-1295, ipamorelin, sermorelin, MK-677), BPC-157, and multi-peptide stacks. IGF-1 tracks the growth-hormone axis (the primary efficacy marker for GH peptides); a full thyroid panel, Testosterone with SHBG, estradiol, DHEA-S, and cortisol map the hormonal landscape; CMP, CBC, lipids, A1c, and fasting insulin cover organ and metabolic safety; hs-CRP tracks inflammation. Measures the body's response to a protocol — not the contents of a peptide vial.
Anyone on or starting peptide therapy who wants objective safety and efficacy data — especially GH-peptide users tracking IGF-1, people establishing a pre-protocol baseline, and those sourcing peptides without clinical oversight for whom independent monitoring is the only safety net. Not a substitute for a prescriber; abnormal results are a prompt to involve a clinician.
Sample Type
Blood draw
Fasting
Required
Results In
2–4 business days
Biomarkers
51 across 19 tests
19 individual tests · 51 biomarkers measured — each test linked so you can learn more.
Fasting for 10–12 hours is required. Morning blood draw (before 10 AM) is preferred for accurate cortisol and hormone levels. Water is okay. If on injectable peptides, draw blood at trough (before next dose) for most accurate baseline.
The short answer
Worth it if you're on peptide therapy — GH-releasing peptides (CJC-1295, ipamorelin, sermorelin, MK-677), BPC-157, or a multi-peptide stack — and want objective proof it's safe and working. It bundles the 53 biomarkers peptide users actually track, including IGF-1 (the key efficacy marker for GH peptides) and SHBG for accurate free-testosterone reading, into one draw at roughly half the à la carte cost. It monitors YOUR body's response — it does not test the peptide vial's contents.
We would rather you order the right test than the most expensive one.
A fasting morning draw (10-12 hours, water okay) at Quest or Labcorp, or at-home phlebotomy where available. If you're on injectable peptides, draw at trough — right before your next dose — for a consistent, comparable baseline. Cortisol and hormones read most accurately before 10 AM.
The markers that matter most and what an out-of-range value can mean. Reference ranges vary by lab, age and sex.
| Marker | Typical range | What it means |
|---|---|---|
| IGF-1 | Age/sex-specific range | The primary efficacy marker for GH-releasing peptides — the stable downstream signal of growth-hormone activity. If it isn't rising on a GH peptide, the protocol (or the product) isn't doing much. Very high levels warrant a clinician conversation. |
| Fasting glucose + insulin + HbA1c | Glucose 70-99 mg/dL; A1c <5.7% | GH-axis stimulation can raise blood sugar and insulin over time. Watching these catches a drift toward insulin resistance early, while it's easy to address. |
| Testosterone (Free & Total) + SHBG | Sex-specific ranges | Total testosterone alone is misleading without SHBG, which determines how much is bioavailable. Together they give the true free-testosterone picture peptide and hormone users need. |
| CMP + CBC + hs-CRP | Within lab reference ranges | The safety backbone: liver and kidney function, blood counts, and systemic inflammation. Any drift here is the signal to pause and get evaluated rather than push through. |
This section medically reviewed by Youmna DiStefano, MD — updated July 2026. General health information, not medical advice; interpret results with a qualified clinician.
A Peptide Therapy Monitoring Panel costs $259.99 at TestWell — $265.99 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) | $259.99 | $265.99 | 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
Medically reviewed by Youmna DiStefano, MD · Last reviewed September 2026
Related guide
BPC-157 and Bloodwork: What Labs Can (and Can't) Tell You
Related guide
Peptide Therapy Bloodwork: What to Test for Safety and Results
Starting at $500 at other labs
TestWell Price
$259.99
+ $6 lab processing fee at checkout
No insurance needed · HIPAA compliant
Individual tests that complement this panel
Peptide Therapy Monitoring Panel
$259.99