Research peptide retailer
XL Peptides
Nottingham-based research peptide retailer (Bio Research Ltd, since 2024). Bundles and stacks are the hero SKU (Wolverine BPC-157 + TB-500, Tesamorelin + Ipamorelin 3:1, KLOW, Glow). Janoshik third-party CoAs published per batch with QR-code verification. 10-vial bulk packs alongside singles. Wholesale tier above 11 vials.
Headline price
Wolverine Stack £29.99, BPC-157 single from £14.99
Regulated as
Bio Research Ltd 15464334, research-chemical supplier
Delivery area
UK-wide, 1 to 2 working days
Certificate of Analysis profile
CoA per batch
Yes
Access
open
Lab
Janoshik (third-party, QR-verifiable)
QR-verifiable
Yes
CoA profile auto-refreshed monthly. See methodology for scoring.
Named bundles and stacks
Best for
Researchers wanting named-stack bundles (Wolverine, KLOW, Glow) and CoAs that can be QR-verified to a named third-party lab.
Weak on
Newer trading history (2024). No blog or glossary content layer.
What stands out
- · Janoshik third-party CoAs per batch with dates
- · QR-code CoA verification on every product
- · Hero stacks: Wolverine, KLOW, Glow, Tesamorelin + Ipamorelin 3:1
- · 10-vial bulk packs alongside singles
- · 11+ vial tier triggers wholesale enquiry route
- · 18+ research-only consent gate on first visit
- · cGMP-compliant ISO9001 facility claim
Useful pages on XL Peptides
Our verdict
Best stack-led UK retailer with the strongest CoA verification mechanic (QR + Janoshik). The newest trading history of the segment is the only meaningful caveat.
Last reviewed 2026-05-18. PeptideClear earns a referral fee when readers click through and convert. Editorial criteria are documented in our methodology.
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