UK Research Peptides · Third-Party Verified
The standard
is changing.
Nexapep supplies independently verified research peptides to UK laboratories. Every batch is tested by accredited third-party analytical chemists — not self-issued, not in-house. The CoA you receive is real.
Live Batch Data — BPC-157 Lot #NX-240187
99.4%HPLC Purity
1419.5Observed MW (g/mol)
0.02%TFA Content
JanoshikTesting Laboratory
Independent HPLC chromatogram included
Mass spectrometry identity confirmed
QR-verified at janoshik.com/verification
ISO/IEC 17025 accredited laboratory
Why Nexapep
Built on a different
standard of verification.
Independent CoA — Every Batch
No self-issued certificates. Every product tested by Janoshik Analytical — ISO 17025 accredited — before it reaches your laboratory.
HPLC + Mass Spectrometry
HPLC alone confirms purity. Mass spectrometry confirms identity. We run both — because one isn't enough to be certain of what you're working with.
UK Dispatched, Same Day
Orders placed before 4pm dispatched same day. Cold-chain compliant packaging. No lengthy international waits from overseas warehouses.
RUO Compliant Throughout
All products supplied strictly for laboratory research use only. Clear compliance labelling on every vial. We take our responsibilities seriously.
Catalogue
Bestsellers
Transparency
What a real CoA
looks like.
Most UK peptide suppliers issue their own Certificates of Analysis. That's the equivalent of marking your own homework. We work exclusively with ISO 17025-accredited independent laboratories.
01
Independent Laboratory Name & AccreditationJanoshik Analytical, ISO 17025. Not the supplier. Not in-house.
02
HPLC Chromatogram — The Actual GraphNot just a number. The raw chromatogram showing every peak, included with every CoA.
03
Mass Spectrometry — Identity ConfirmedObserved vs theoretical molecular weight. The only way to confirm you have the right compound.
04
QR VerificationEvery CoA carries a QR code linking directly to Janoshik's verification database. Check it yourself.
Certificate of Analysis
Janoshik Analytical
Product
BPC-157
Batch / Lot
NX-240187
Testing Laboratory
Janoshik Analytical s.r.o.
Accreditation
ISO/IEC 17025
HPLC Purity
99.4% ✓ PASS
Mass Spec (Observed MW)
1419.53 g/mol ✓ PASS
Theoretical MW
1419.53 g/mol
TFA Content
0.02% ✓ PASS
Chromatogram
Included ✓
QR Verification
janoshik.com/verification