- Lab
- North American Diagnostics, Austin, TX
- Lot
- PSP-09112026BP
- Method
- HPLC-UV + mass spectrometry
- Result
- Purity 99.97% · content 4.88mg · identity confirmed
- Also tested
- Endotoxin, sterility, heavy metals, fentanyl screen
- Verified on
- nadiagnostics.com/verify, Nov 6, 2026: same report returned
Peptide testing, read line by line
Third-party labs test research peptides for identity, purity and contaminants. This site explains how those tests work, how to check a report against the lab's own records, and which vendors publish what.
AFFILIATE Some links on this page are affiliate links. We may earn a commission if you buy through them. Read the disclosure
SAMPLE illustrationHPLC · UV
- Purity
- main peak %
- Identity
- by MS
- Amount
- mg / vial
01 · Process
How a third-party test gets from vial to verified report
Every lab does this a little differently, but the chain is the same. Each link in it is something you can check on the finished report.
- STEP 01
Sample sent
A vendor or buyer posts a sealed vial to the lab. Janoshik, for example, asks for one whole unopened vial.
- STEP 02
Lab analysis
HPLC separates the sample to measure purity. Mass spectrometry confirms the molecular mass matches the label.
- STEP 03
Report issued
The certificate carries a test ID, the client, dates, the batch, the method and each result.
- STEP 04
Public check
Many labs let anyone enter the test ID or a key on their site and pull up their own copy of the report.
02 · Directory
Lab directory: who tests research peptides
These are the testers that come up most when vendors and buyers publish results. Prices and turnaround are only listed where the tester states them on its own site.
| Tester | Type | Methods listed | Public lookup | Listed price | Turnaround |
|---|---|---|---|---|---|
| Janoshik Analytical | Testing lab, takes samples from anyone | HPLC for identity, amount and purity; add-ons such as endotoxin, sterility, heavy metals, LCMS screening | Task number + unique key on janoshik.com/verification; public results list | BPC-157 analysis $215 | 36 h average (live figure on homepage) |
| Finnrick | Rating service; sends samples to partner labs | HPLC-based identity, purity and quantity; labeling; endotoxin in one standard | Vendor and peptide ratings; COA verify page | Standard test $249; build-your-own from $69 | Standard test: 2 weeks |
| Freedom Diagnostics Testing | Testing lab, Franklin, Tennessee; est. 2023 | Purity (HPLC), identity (LC-MS), net content, endotoxins, sterility (PCR), heavy metals, fentanyl | COA Look Up; "Over 42,000 COAs searchable" | Shown on the submission form | 1-3 business days average |
| North American Diagnostics | Testing lab, Austin, Texas (address on its reports) | HPLC purity, mass content, identity by LC-MS | Verify portal by test ID or batch ID | Not stated | Not stated |
Janoshik and Finnrick have their own guides: Janoshik, Finnrick.
03 · Specimen reports
Two real reports, and what checking them looked like
Both reports are published by PSPeptides, the vendor we pick on this site. We opened each one, then ran the lab's own lookup where there was one.
- Lab
- ILS Laboratories, San Diego, CA
- Lot
- PSP-09232025BA
- Method
- Water analysis, USP <71>, USP <85>
- Result
- Sterility no growth · endotoxin NMT 0.05 EU/mL · fentanyl not detected
- Analysed
- 10/15/2026
- Verified on
- Access code printed on the report; portal lookup not run
Our pick · affiliate link
Open the PSPeptides certifications page and match a test ID against the lab's verify portal yourself.
04 · Index
Guides in this archive
- Covers
- Services, prices it lists, and how its task number plus unique key lookup works.
- Covers
- How the rating is calculated from buyer-submitted samples, and what it says about vendors.
- Covers
- A real certificate taken apart, field by field.
- Covers
- HPLC vs mass spec, and why two "99%" claims are not the same thing.
- Covers
- Ten vendors, judged only on the testing they publish.
What is third-party peptide testing?
A lab that is not the seller analyses a sample and issues a report. For research peptides the report usually covers identity (is it the right compound), purity by HPLC, and sometimes the amount in the vial and contaminants such as endotoxin or heavy metals.
Who sends the samples to the lab?
Either the vendor or a buyer. Vendor-submitted reports are the most common and are what you see on product pages. Buyer-submitted results, such as those collected by Finnrick, show what an ordinary order contained.
How can I tell if a lab report is real?
Look for a lab name, a test ID and a lookup page on the lab's own website. Enter the ID there. If the lab returns the same product, batch, date and results, the report exists in the lab's records.
Does 99% purity mean the vial is 99% peptide?
No. HPLC purity is the share of the main peak among the peaks the method detects. It does not tell you how much material is in the vial. That is a separate result, often called mass content or net content.
Is this site paid by vendors?
Some links are affiliate links and we may earn a commission. That does not change what a report says or how we describe it. The full disclosure is on the About page.
Source log
Every page below was opened on Nov 6, 2026.
- Janoshik: BPC-157 analysis listingjanoshik.com/pricelist/bpc-157-analysis/
- Janoshik: homepage, live turnaround figuresjanoshik.com/
- Finnrick: homepage, testing optionswww.finnrick.com/
- Freedom Diagnostics Testing: homepagefreedomdiagnosticstesting.com/
- North American Diagnostics: homepagenadiagnostics.com/
- North American Diagnostics: verify lookup for NAD-0037963nadiagnostics.com/verify/?batch=NAD-0037963
- PSPeptides: BPC-157 5 mg COA PDFpspeptides.com/wp-content/uploads/2026/09/COA_HPLC_BPC-157_5mg_NAD-0037963.pdf
- PSPeptides: bacteriostatic water COA PDF (ILS Laboratories)pspeptides.com/wp-content/uploads/2026/10/pspeptidescom-PSP-09232025BA-Xb4qJZ.pd