Research peptide retailer
Peptide Systems
Per-batch lot-specific CoAs from an ISO 17025-accredited lab are directly downloadable PDFs linked openly with no login gate, but no QR/lab-portal cross-verification and catalog limited to two SKUs.
Headline price
Not disclosed
Regulated as
Not disclosed
Delivery area
Not disclosed
Certificate of Analysis profile
CoA per batch
Yes
Access
open
Lab
Stored as ARL Bio Pharma; the NAD+ product page CoA info this session only describes 'ISO 17025:2017-accredited labs' / '3rd party, US registered labs' in the visible page text, without naming ARL Bio Pharma or any specific lab. Per task rules we did not open the individual CoA PDF, so the lab name may simply live inside the PDF itself rather than the page text — treat as unconfirmed, not contradicted.
QR-verifiable
No
Founded
Not disclosed
Companies House
Not disclosed
Baseline last reviewed
2026-08-19
No UK trading entity found
We searched UK Companies House thoroughly (exact name, exact phrase, and plausible variants) and found no matching registration, despite this site presenting as UK-based. This is a Business Transparency finding and does not affect the Testing Transparency result shown above, which is scored on its own six signals only. It is not proof of wrongdoing, only that we could not confirm who operates this business: see methodology.
- ⚠ No UK trading entity could be found despite a thorough search, though the site presents as UK-based
CoA library: https://www.peptidesystems.com/product-page/nad
Re-checked on a rolling basis, not a fixed monthly cycle; see the last-verified date above. See methodology for how this is scored.
Separate from Testing Transparency
Responsible Practice assessment
Clear and responsibleNo specific concerns were recorded for Peptide Systems against our responsible-brand framework at the time of review.
We assess what a brand publishes and makes available to customers, not its intentions. Full framework and what each status means: how we assess brands. Think this is wrong? Email hello@peptideclear.co.uk with evidence.
Not yet Independently Verified
The Testing Transparency and Responsible Practice results above are free and the same for every retailer. Nobody has commissioned the deeper Independent Verification process for Peptide Systems yet. Request that it be run →
Our verdict
Last reviewed 2026-08-19. PeptideClear earns nothing when readers click through, and this link carries no tracking. Editorial criteria are documented in our methodology.
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