About United Peptides
United Peptides is a UK-based supplier of high-purity research peptides, trusted by researchers and laboratories across the United Kingdom. We supply consistent, quality-verified peptides and laboratory consumables for controlled in-vitro research applications.
Our Mission
To provide researchers across the United Kingdom with consistent, high-purity research peptides they can rely on. Every vial we supply undergoes rigorous quality verification to support reproducible, meaningful research outcomes.
Why Researchers Choose United Peptides
≥98% HPLC Purity
All peptides independently tested via HPLC analysis, with batch-specific Certificates of Analysis available on request.
UK-Based Dispatch
Dispatched from within the UK via Royal Mail Tracked 24 — next working day dispatch on all orders.
Third-Party Testing
Independent analytical testing including HPLC purity verification, identity confirmation, heavy metal screening, and endotoxin analysis.
Lyophilised Formulation
Peptides supplied as lyophilised (freeze-dried) powder in sterile, sealed vials for maximum stability and shelf life.
Quality Commitment
Every batch is lyophilised and sealed under controlled conditions. We maintain strict inventory rotation to ensure you receive fresh product with maximum stability. Independent third-party analytical testing is conducted to verify purity specifications, with Certificates of Analysis available for every product batch.
How We Work
Our catalogue is built around the compounds UK laboratories ask for most — research peptides such as BPC-157, TB-500, semaglutide, tirzepatide and retatrutide, along with common laboratory consumables like bacteriostatic water. Rather than hold deep stock of everything, we keep tight control of what we carry and rotate it deliberately, so what arrives with you is in date and analytically current.
Every listing shows the specification we hold for that batch: purity, form, vial size and storage guidance. Where a Certificate of Analysis is available, we provide it on request by email, matched to the batch number on your vial. If a specification matters to your protocol, ask us before you order and we will confirm it in writing.
Supporting UK Research
We work with academic groups, independent laboratories and private research setups across the UK. That means we understand the practicalities — research budgets, procurement paperwork, storage limits and the need for traceable documentation. Whether you are ordering a single vial to test a method or restocking a compound for an ongoing project, our team will help you get the specification you need without the guesswork.
Questions about a product, a batch or a bulk enquiry? Email hello@unitedpeptides.co.uk and a member of our UK team will come back to you, usually within one business day.
Research Use Only
All products sold by United Peptides are intended for research and laboratory use only. They are not for human or veterinary consumption, not for cosmetic use, and not for any therapeutic or diagnostic application. By purchasing from United Peptides, you confirm that you are a qualified researcher or laboratory professional and that these products will be used exclusively for in-vitro research purposes in compliance with all applicable UK regulations.