NEW COAs JUST LANDED — 99% purity across every GLP-1 batch•Independently lab-tested by Analiza Bialek European testing•Third-party verified identity & purity — every batch, every time•The real deal. Traceable batch numbers. Downloadable certificates.•View the latest Certificates of Analysis →•NEW COAs JUST LANDED — 99% purity across every GLP-1 batch•Independently lab-tested by Analiza Bialek European testing•Third-party verified identity & purity — every batch, every time•The real deal. Traceable batch numbers. Downloadable certificates.•View the latest Certificates of Analysis →•
Peptides UK 4U0
Comparisons

Compare Research Peptides

Side-by-side comparisons of the most-researched GLP-1 peptides — receptor profile, vial strengths, half-life and how each one is used in current research. For laboratory research only.

Retatrutide vs Tirzepatide

Triple agonist (GLP-1 / GIP / glucagon) compared with dual agonist (GLP-1 / GIP). Receptor profile, vial sizes and research context.

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Retatrutide vs Semaglutide

Triple receptor peptide compared with the single GLP-1 agonist. Mechanism, half-life and dosing considerations for research.

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Tirzepatide vs Semaglutide

Dual GLP-1 / GIP agonist compared with single GLP-1. The most-searched research peptide comparison of 2026.

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Disclaimer: All products sold by Peptides UK 4U are for laboratory and research purposes only. They are not intended for human or animal consumption, diagnosis, treatment or prevention of any disease.

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