Third-party analytical testing · Research peptides Standards & methodsVerify a certificate
Peptide testing & verification

Precision analytical testing for research peptides.

The standard for peptide analysis — purity, identity, and content, issued as a permanent, verifiable certificate. We sell no product; we only measure.

HPLC + LC-MSPurity & identity
7 days Turnaround
Tamper-proofSigned COAs
Sample certificate · Illustrative data only
C
Digital COA
certinumlabs.com
Verification code
CTM-2026-0412
Tirzepatide
Client / Sample / LotExample Labs · TZP10 · TZP-2406-A
Purity
99.4%
Conforms
Identity
Tirzepatide
Conforms
Quantity
10.08 mg
Measured
⤢ Full report
Peptides we test Tirzepatide Semaglutide Retatrutide BPC-157 TB-500 Ipamorelin CJC-1295 MOTS-C GHK-Cu + blends & more
Certificate verification

Verify a certificate in seconds.

Every Certinum report lives at a permanent, unique link that shows the original result — so a certificate can be confirmed as authentic in seconds, rather than accepted on the strength of an unverifiable copy.

  • Tamper-evident: A report cannot be altered or re-used by a vendor.
  • Scan to confirm. Every certificate carries a code that opens the original record. No match means it wasn't issued by us.
  • Embeddable badge. Vendors can place a live "Verified" seal on their product page that links straight to the original report.

Verify a certificate

Try the demo: CTM-2026-0412
What you receive

A verifiable record — plus a certificate for your files.

Every analysis produces two things: a live, tamper-evident record anyone can verify online, and a clean PDF Certificate of Analysis for your archives, regulatory files, and customers.

Digital COA — the verified record
Sample certificate · Illustrative data only
C
Digital COA
certinumlabs.com
Verification code
CTM-2026-0412
Tirzepatide
Client / Sample / LotExample Labs · TZP10 · TZP-2406-A
Purity
99.4%
Conforms
Identity
Tirzepatide
Conforms
Quantity
10.08 mg
Measured
⤢ Full report
PDF COA — print, archive & distribute
Sample certificate · Illustrative data only
CertinumLABS CERTIFICATE OF ANALYSISReport CTM-2026-0412 · Issued 2026-06-28
Tirzepatide
Research use only · Not for human consumption
ALL TESTS CONFORM
Declared identityTirzepatide
Sample codeCTM-2026-0412
MatrixPeptide, lyophilized
Lot codeTZP-2406-A
Received2026-06-24
MethodsRP-HPLC · LC-MS
Total purity (HPLC)99.4%
Total quantity10.08 mg
TestSpecificationResultStatus
Identity (LC-MS)TirzepatideTirzepatideCONFORMS
Quantity10.0 mg (label)10.08 mgMEASURED
Purity (HPLC)≥ 98.0%99.4%CONFORMS
HPLC Chromatogram · UV 214nmRT 6.42 min
Results reviewed byLaboratory Manager
Results certified byLaboratory Director
How it works

From sample to verified certificate in days.

A straightforward, documented workflow — anonymized on arrival, analyzed in our in-house laboratory, and issued as a record you can verify.

01
Submit · 2 minutes

Register & ship your sample

Register the peptide and send the vial to our US intake facility. Lyophilized powder or solution — no international shipping for domestic clients.

02
Day 1

Anonymized & logged

Your sample is assigned a code and anonymized before it reaches the lab, under a documented chain of custody. No vendor names travel with the sample.

03
Analysis

Purity, identity & content

Run on our own validated analytical instruments — HPLC for purity, LC-MS for identity, quantity per vial. Optional endotoxin and heavy-metals screening.

04
7 business days

Verified certificate issued

You receive the digital record and the PDF COA.

What we test

The compounds we analyze.

Our core is research peptides — any of them. Alongside, we test the compounds vendors and researchers most often need verified: SERMs, sexual-health compounds, and supplements.

Research peptide vial, BPC-157

Peptides

Our core — any research peptide.
GLP-1sBPC-157TB-500IpamorelinCJC-1295MOTS-C+ any peptide

SERMs

Estrogen modulators.
ClomipheneEnclomipheneTamoxifenRaloxifene

Sexual health

PDE5 inhibitors.
SildenafilTadalafilVardenafilAvanafil

Supplements

Compounds & actives.
NMNL-carnitineFollistatinGlutathione
As a US laboratory, we do not test controlled substances (anabolic steroids, hGH).
Pricing & catalog

One rate. Any compound.

One rate for all peptides. Optional assays priced per test.

Core analysis · any peptide
$250 / sample
Full characterization — the same price for a simple peptide or a GLP-1 blend.
  • HPLC purity
  • LC-MS identity confirmation
  • Content per vial
  • Verifiable certificate — publish or keep private
No complexity surcharges. If it runs on HPLC and LC-MS, it's $250 — the same for every compound we accept.

Optional add-ons

Layer any of these onto a submission.
Endotoxin (LAL)Bacterial endotoxin screening
+$90
Heavy metals (ICP-MS)Lead, cadmium, arsenic, mercury
+$120
Residual solvents (GC-MS)Manufacturing solvent residues
+$90
Stability screeningDegradation under defined conditions
+$120
What we measure

Every sample, fully characterized.

Purity is only the starting point. The failures that matter are the ones a single measurement will miss.

01 · HPLC-UV

Purity

Chromatographic purity as a percentage, with the full trace attached to every report.

02 · LC-MS

Identity

Mass-spec confirmation that the compound — and its sequence — is what the label claims.

03 · Quant

Content per vial

Actual milligrams delivered versus the stated dose. The most common real-world failure.

04 · LAL

Endotoxin

Bacterial endotoxin screening — the contamination that purity tests don't see.

05 · ICP-MS

Heavy metals

Lead, cadmium, arsenic, mercury — trace-metal screening for parenteral-intended material.

Full panel

One signed report

Every assay consolidated into a single verifiable certificate.

In our reference data, purity on peptides from established vendors is almost always high (99%+). Dosing is where they fail — content swings from meaningfully under-label to well over. Which is exactly why a content test, not a purity claim, is what actually protects the buyer.

Learn how to read a peptide COA →

Inside the lab

Where certainty is measured.

Every result comes off our own in-house Shimadzu LC-MS and HPLC — the same class of equipment used in pharmaceutical quality control. ISO/IEC 17025 accreditation is in progress.

Modern analytical instrument in the laboratory
HPLC-UV

Purity

Chromatographic separation and purity quantification, with the full trace on every report.

Gloved hands handling sample tubes
Sample handling

Chain of custody

Anonymized, logged, and prepared under controlled handling before analysis.

Mass-spectrometry instruments in the laboratory
LC-MS

Identity

Mass-spectrometry confirmation of the compound and its sequence.

Who we serve

Independent assurance, for both sides.

For vendors

Prove what you sell.

Give your customers independent, verifiable confirmation of what they are buying.

  • Live verification badge for product pages
  • Turnaround: 7 business days
  • Endotoxin & heavy-metals add-ons
Submit a batch →
For researchers & buyers

Know what you're buying.

Know exactly what's in the vial — purity, identity, and true content — backed by data, not anyone's word.

  • Full purity, identity & content
  • Get your own COA to check the vendor's numbers
  • Verify any COA you've been handed
Send a sample →
Objectivity & impartiality

Impartial by structure, not by promise.

"The objectivity and impartiality you expect from a professional laboratory — built into how we're set up, not asserted in our marketing."

No product sales

We don't sell peptides. We have nothing to gain from any result going one way or the other.

No vendor stake

We hold no equity in, and take no commission from, any vendor we test.

Unaltered results

Every certificate is issued to a permanent record that can't be edited.

Methodology & standards

Rigor is the product.

"A result is only as good as the method behind it. Every assay runs to a documented procedure, on validated instruments, with the full data retained — so a number can be defended, not just reported."

Purity methodRP-HPLC, UV 214nm
Identity methodLC-MS (ESI)
Content / assayQuantitative HPLC
EndotoxinLAL · USP <85>
Heavy metalsICP-MS
Sample handlingAnonymized, chain-of-custody
InstrumentationIn-house Shimadzu LC-MS & HPLC
StandardsMethods aligned to ISO/IEC 17025 · accreditation in progress
IndependenceNo product sales, no vendor equity
Get started

Register a sample for analysis.

Tell us where to reach you, and we'll send everything you need to submit your sample — usually the same day.

  • A reference ID for your submission
  • Current pricing and available assays
  • Simple shipping instructions
Work email
No account required · We don't share your address.