Third-party analytical testing · Research peptides Accreditation & 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
C
Digital COA
certinumlabs.com
Verification code
CTM-2026-0412
Tirzepatide
Client / Sample / LotAster Research · 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.

Recycled, edited, and outright fabricated certificates are the norm in this market. 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 once issued — not by a vendor, and not by us. What appears is the original record.
  • Scan to confirm. Every certificate carries a code that opens the real, original record. No match means it wasn't issued by us.
  • Embeddable badge. Vendors place a live "Verified" seal on their product pages that links straight to the real report.

Verify a certificate

Try a sample: 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
C
Digital COA
certinumlabs.com
Verification code
CTM-2026-0412
Tirzepatide
Client / Sample / LotAster Research · TZP10 · TZP-2406-A
Purity
99.4%
Conforms
Identity
Tirzepatide
Conforms
Quantity
10.08 mg
Measured
⤢ Full report
PDF COA — print, archive & distribute
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 at an accredited partner lab, 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 at an accredited partner laboratory — 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. Publish it to the open database or keep it private — your choice.

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.
Inside the lab

Where certainty is measured.

Every result comes off validated analytical instruments — the same class of equipment used in pharmaceutical quality control.

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.

Public record

Every result, open and searchable.

Vendor scores built only from real, independent tests — never reviews or paid placement. Sample data shown for illustration.

VENDOR SCORES · SIGNED & VERIFIABLE⌕ search
VendorCompoundPurityContentRatingTested
Aster ResearchBPC-15799.1%5.0 mgA · 962026-06-28
Northline LabsTirzepatide99.4%10.2 mgA · 932026-06-21
Cascade PeptideSemaglutide99.2%3.1 mgB · 742026-06-15
Vireo SupplyMOTS-C88.6%1.9 mgF · 412026-06-09
Each row resolves to the original signed certificate and its chromatogram.
Who we serve

Independent assurance, for both sides.

For vendors

Demonstrate product integrity.

Give your customers independent, verifiable confirmation of what they are buying — under a certificate that carries your own brand.

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

Confirm before you rely on it.

Establish what is actually in a vial — purity, identity, and true content — with an independent result that rests on no one's word but the data.

  • Full purity, identity & content
  • Published to the open record
  • 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 or rank.

Unaltered results

Every certificate is issued to a permanent record that can't be edited after the fact — by a vendor or by us.

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
StandardsMethods aligned to ISO/IEC 17025
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.