UK Mainland · Discreet 24h Dispatch
Third-party HPLC tested · Batch COAs available
● Nexum · Research Platform

Premium research peptides. UK lab tested. Fast dispatch.

High-purity compounds supplied exclusively for laboratory and research applications — every batch HPLC-verified, every COA published.

≥99% purityHPLC verified per batch
UK dispatchTracked, discreet, 24h
Secure checkoutSSL · 3DS protected
● Featured · Restocked
Nexum Ř4TA Retatrutide 10mg vial
Purity99.4%
Strength10 mg
BatchR4-2604
Ř4ta · Retatrutide
£74.99
In stock
HPLC verified ISO-accredited labs Mass-spec confirmed SSL secure checkout UK Mainland 24h
● Why Nexum

A scientific approach to peptide research.

Built for serious research environments. Every Nexum compound is independently HPLC-tested, mass-spec confirmed and accompanied by a downloadable Certificate of Analysis — so the only variable in your study is the one you're investigating.

Lab-grade purity

≥99% HPLC verified. Every batch tested by an ISO-accredited UK laboratory.

Public COAs

Batch-level Certificates of Analysis published openly, not on request.

Discreet UK dispatch

Tracked Royal Mail 24, plain packaging, same-day cut-off at 3pm.

Compliant by design

Supplied for laboratory use only. Clear labelling, regulated handling.

● Researcher feedback

Trusted across UK research labs

★★★★★ 4.9 / 5 · 326 reviews
★★★★★
"Cleanest HPLC traces I've seen from a UK supplier. COAs match every assay we've run in-house."
JR
Dr. J. Reyes
Postdoctoral researcher · Manchester
★★★★★
"Ordered Friday afternoon, delivered Saturday morning. Vials arrive sealed, lyophilised, labelled — exactly as advertised."
SM
S. Maitland
Independent research lab
★★★★★
"Switched our supplier last year. Purity is consistent batch-to-batch — that's what matters when you're running longitudinal studies."
AK
A. Khan
Research scientist · Sheffield
● Common questions

Everything you'd want to know

Are these products for human consumption?

No. All Nexum compounds are supplied exclusively for laboratory and research use. They are not approved as medicines and must not be ingested, injected, or used on humans or animals.

How is purity verified?

Every batch is HPLC-tested by an ISO-accredited UK laboratory, with results cross-verified by mass spectrometry. The Certificate of Analysis for your batch is linked on each product page.

How fast is UK dispatch?

Orders placed before 3pm Mon–Fri ship the same day via Royal Mail Tracked 24. Plain, discreet packaging.

Do you ship internationally?

Currently UK mainland only. International dispatch is subject to local customs and regulatory rules.

How are payments processed?

All transactions run through Shopify's PCI-DSS Level 1 secure checkout with 3D Secure protection. We never store card details.

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