Research Peptides UK
from£15
Research peptides verified to the vial — cGMP-compliant, 99%+ HPLC-tested, batch COA published online.
cGMP-Compliant Lab
Manufacturing to pharmaceutical standards
99%+ HPLC Verified
Chromatography-confirmed purity every batch
Batch COA Online
Published COA for every batch
Free UK Shipping £75+
Same-day dispatch before 3pm
Premium Research Peptides, HPLC-Verified
cGMP-compliant manufacture, independent testing on every batch, and a batch-specific Certificate of Analysis with every order.
Peptide Stacks
- Healing & Recovery Research StackMost PopularSave 15%
Healing & Recovery Research Stack
BPC-157 · TB-500 · BAC Water
£43.32 £50.97
- Growth Hormone Research StackSave 15%
Growth Hormone Research Stack
Ipamorelin · CJC-1295 · BAC Water
£37.37 £43.97
- Brain & Cognition Research StackSave 15%
Brain & Cognition Research Stack
Semax · Selank · NAD+
£76.47 £89.97
- Skin & Aesthetic Research StackSave 15%
Skin & Aesthetic Research Stack
GHK-Cu · KPV · BPC-157
£62.02 £72.97
Every Batch Has Its COA Online
Each batch is independently tested by HPLC before dispatch. The batch-specific Certificate of Analysis is published on our COA page — match your vial's batch number to its report. The COA confirms purity, composition, and identity — so the result can be recorded against the exact vial received, not a generic spec sheet.
Enter the batch number printed on your vial label to pull its report.
The Next Generation of Metabolic Research
Retatrutide — Triple Agonist (GLP-1 / GIP / GcG)
Retatrutide is a novel triple-receptor agonist under active clinical investigation. With combined GLP-1, GIP, and glucagon receptor activity, it represents the cutting edge of metabolic peptide research. Available in research-grade lyophilised powder with full HPLC verification.
At Nexyra Lab, every compound begins with purity — cGMP-compliant, HPLC-verified beyond 99%, batch after batch. We engineer with precision, documenting identity and composition in a Certificate of Analysis with every order, so nothing is left to chance. And we are built for performance — trusted by researchers who demand serious quality for serious science.
Shop the CollectionVerify Us Yourself
Registered UK company
Nexyra Research Ltd · No. 17057743 · 124–128 City Road, London
Check on Companies House ↗Independent HPLC testing
Every batch tested by a third-party lab before release. No batch ships below 99% purity.
How we test ↗Public COA library
Every current batch's certificate is published — read the chromatogram before you buy.
Browse all COAs ↗Same-day UK dispatch
Orders before 3pm ship the same working day. Lost or damaged in transit? We reship.
Shipping policy ↗Customer reviews launch soon — every review will be tied to a verified order.
Frequently Asked Questions
Are Nexyra Lab peptides third-party tested?+
Yes. Every batch is independently tested by a third-party laboratory using High-Performance Liquid Chromatography (HPLC). Results confirm 99%+ purity before any product is dispatched. The batch-specific Certificate of Analysis (COA) is published on our COA page — match your vial's batch number to access the results.
What purity are your research peptides?+
All Nexyra Lab research peptides carry a minimum 99%+ purity, verified by independent HPLC analysis. We do not release any batch below this threshold.
Do you provide a Certificate of Analysis?+
Yes. The batch-specific Certificate of Analysis (COA) from our independent testing laboratory is published on our COA & Lab Reports page. Match your vial's batch number to its results.
How fast is UK dispatch and delivery?+
Orders placed before 3pm on working days are dispatched same day. Standard UK delivery takes 1–2 working days. Free shipping on all UK orders over £75.
Are these peptides for human use?+
No. All products sold by Nexyra Lab are strictly for in vitro research and laboratory use by qualified researchers. They are not approved for human or veterinary use and must not be used for self-administration.
How should research peptides be stored and reconstituted?+
Lyophilised (freeze-dried) peptides should be stored at −20°C in a sealed, dry environment. Once reconstituted with bacteriostatic water, store at 4°C and use within 30 days. See our full Reconstitution Guide for step-by-step instructions.
2.50 mg/mL
0.10 mL per 250 mcg aliquot
Peptide Reconstitution Calculator
Work out the bacteriostatic water volume to add and the resulting working concentration — for any vial size and target amount.
Open calculatorFor research planning only. Not medical or dosing advice.
Tools for Researchers
Free research planning tools — from compound selection to reconstitution and storage lookup.
Find Your Peptide
Answer 3 questions. Get 1–3 specific compound recommendations matched to your research area.
Compare Compounds
Side-by-side comparison of any two compounds — sizes, pricing, and research area.
Storage Guide
Searchable reference table: vial sizes and storage conditions for every compound.
Latest Research Articles
Same-day UK Dispatch
Orders placed before 3 pm ship the same working day.
Discreet Packaging
Plain, unbranded outer packaging on every order.
Lost or Damaged Reship
We resend orders confirmed lost or damaged in transit.
UK-based Support
Email support from our UK team.
Pay securely by bank — no card details shared
Authenticated in your banking app
Approve the payment with the same biometrics or PIN you already use for online banking.
No card number, no CVV stored
Funds move directly bank-to-bank, so there are no card details to enter or store.
FCA-regulated open banking
Payments run on the UK's regulated open banking framework via Fena.
Powered by Fena · UK open banking
Get Batch Alerts & Research Guides
Get exclusive batch release alerts, research guides, and 10% off your first order.
- New compound alerts
- Batch COA notifications
- Research guides & protocols
- Early access to stacks
No spam. Unsubscribe anytime. For research professionals only.
All products sold by Nexyra Research Ltd are intended solely for in vitro research and laboratory use by qualified researchers and scientific professionals. Our peptides are not approved by any regulatory authority for human or veterinary use. By purchasing from nexyralab.com, you confirm you are 18+ and purchasing exclusively for lawful research purposes.
