Quality & verification

Proof on every lot — not a promise on the label.

Our standard is simple: every batch independently re-tested by an ISO 17025 lab we don’t own — identity, purity, endotoxin, microbial, heavy metals — with the report in your account before you reconstitute.

Independent ISO 17025 testing
Peptriva
Verified under
ISO/IEC 17025 USP–NF ICH Q3D ILAC MRA

Methods

Five tests, one lot at a time.

Identity, purity, endotoxin, microbial, and heavy metals — five methods, each run to a named compendial standard and reported on the exact lot you receive, not a representative sample.

Open any test on the right to see the standard it’s run to and the tolerance it’s held to.

Compendial · per lot

The panel

Test Method Result
Identity LC-MS Confirmed
Purity HPLC ≥99%
Endotoxin LAL ≤1 EU/mg
Microbial PCR Pass
Heavy metals ICP-MS Pass

Five compendial methods run on every lot — no representative sampling.

What each proves

Identity · LC-MS

High-resolution mass spec (ESI+) confirms the exact monoisotopic mass within <5 ppm of theoretical — catching mis-identified peptides, truncated chains, and substituted analogues HPLC alone can miss.

Your lot’s COA and batch number arrive in your order confirmation email — and the QR code on the vial opens its latest batch results.

Search the COA library

Two checks

Tested twice
before it ships.

Every lot is verified twice — first by the lab that makes it, then again by an independent ISO 17025 lab when it reaches us. Both certificates are tied to the lot number on your vial.

1

At the source

Held on file

The production lab tests and releases each batch on completion — identity, purity, heavy metals and more. We keep that COA on file for your exact lot.

Purity (HPLC) Heavy metals
2

On arrival

On every lot

An independent third-party lab re-runs identity, purity, endotoxin and microbial screening. Only after both pass does the lot clear to ship — and this COA is downloadable.

Identity (LC-MS) Endotoxin + microbial Downloadable
Search the COA library by lot number →

Peptriva Platform

Why Peptriva, vs. anywhere else.

Safety and consistency come from testing every lot. Ours go through an independent ISO 17025 lab for identity, purity, microbial contamination, and heavy metals. Generic vendors don’t. Compounding pharmacies vary by location. DIY sources don’t test at all.

What you should verify
Generic vendor research-use marketplace
Compounding pharmacy 503A / 503B varies
DIY / forum source unregulated
Identity verification
LC-MS, < 5 ppm mass match
Stated, rarely verified
Varies by compounder
None
Purity (HPLC)
≥ 99% per lot, 3rd-party
Stated, not 3rd-party
Pharmacy-dependent
None
Microbial screen (PCR)
Screened per lot
Rarely shown
Pharmacy-dependent
None
Endotoxin (LAL)
≤ 1 EU/mg per lot
Rarely shown
Pharmacy-dependent
None
Heavy metals (ICP-MS)
ICH Q3D Option 1
Not reported
Rarely reported
None
COA per lot
Lot-traceable PDF in your account
Stock template
Prescription-only
None
Manufacturing
cGMP-aligned facility
Unverified source
US-licensed
Anonymous
Effectiveness in your protocol
Reproducible: same identity, same purity, same lot
Lot-to-lot drift unknown
Compounded fresh; not standardized
Unverifiable

Lab reports

Every lot ships with its report.

A Certificate of Analysis (COA) is the third-party lab’s report on a specific lot. Every Peptriva lot has one. Below is a sample of the format — the same layout every order ships with.

Sample lot · format example

Three Peptriva research-grade peptide vials on the brand-blue backdrop — sample COA format
peptriva ISO 17025 · 3rd-party verified
Tests7 / lot
PurityPer lot
Lab3rd-party
COAs100%
What every COA includes Lot-by-lot
IdentificationLC-MS m/z mass match
spec match
REF
Purity (HPLC)area-% on every lot
reported per lot
REF
EndotoxinLAL · USP <85>
≤ 1.0 EU/mg
REF
Net contentper vial
confirmed
REF
Microbial screenPCR · microbial DNA
none detected
REF
Heavy metalsPb · As · Cd · Hg
per ICH Q3D
REF
Acetate counter-ionw/w · per lot
reported per lot
REF
Methods & standards Reference
RP-HPLC purity220 nm · isocratic
USP <621>
REF
Mass identityhigh-resolution LC-MS · ESI+
USP <736>
REF
Endotoxin (LAL)kinetic chromogenic
USP <85>
REF
Microbial screenPCR · rapid, validated
validated method
REF
Heavy metalsICP-MS · ICH Q3D
USP <232>
REF
Lot traceability Per lot
Synthesis datecGMP-aligned facility
Per lot
LOG
QC release date3rd-party ISO 17025 lab
Per lot
LOG
QC director sign-offsignature on file
verified
SIG
Storage−20 °C, sealed dark
≤ 24 mo
SPEC
Every lot signed by an ISO 17025 QC director
Glossary