Disclaimer: All products are for laboratory research only and not for human or animal use or consumption. For in-vitro research by qualified professionals only.
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Premium Research Solutions fromBritish PeptidesPremium Research Solutions

High-purity research peptides made in the UK and shipped to research laboratories across the US and EU. Every batch independently verified to 99%+ HPLC purity with full certificate of analysis available on request.

β˜… 10% Off New Orders 99%+ HPLC Purity COA Available Tracked Shipping
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Reta GLP-3
πŸ‡¬πŸ‡§ Made in UK
In Stock99%+ HPLC

Reta GLP-3

Retatrutide research peptide, an investigational GIP, GLP-1 and glucagon receptor triple agonist. 99%+ HPLC, COA on request. Research use only.

$52.00
New customer price
From$46.80-10%
Research use only
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99% HPLC Purity
Every batch tested
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Quality, transparency and responsive service for researchers.

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Tested for purity

Every compound is tested before dispatch and certified to 99%+ HPLC purity.

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Our support team replies quickly and can advise on your research needs.

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Why Researchers Choose British Peptides

Peptides are a growing area of laboratory research. Current studies look at their structure and their possible roles in biological and biochemical research settings.

If you buy research peptides online in the US or Europe, choose a supplier that provides laboratory-grade products, verified purity, and clear documentation. All our peptides are supplied strictly for research and laboratory use only.

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βœ“Strictly for research use, with full regulatory compliance documentation
99%+
HPLC Purity
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Made in Britain
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Researcher Reviews

Trusted by the Research Community

Real feedback from qualified researchers, scientists and institutions who trust British Peptides for their laboratory compounds.

4.9
Overall rating
3,100+
Researchers
98%
Would recommend
100%
Reorder rate
We ran our own HPLC verification on the Retatrutide 5mg batch β€” came back at 99.4%, exactly matching the COA provided. Packaging arrived fully sealed via Royal Mail Tracked, next working day. British Peptides has genuinely set a new standard for UK research compound suppliers. This is now our laboratory's exclusive source.
DR
Dr. Richard M.
University Research Laboratory, London
βœ“ Verified purchase
β€œOrdered BPC-157 10mg and TB-500 together. The COA was available immediately on the website β€” exactly what we need for our research documentation. Arrived next day, perfectly lyophilised. Outstanding quality and service.”
JK
James K.
Independent Research Scientist, Manchester
βœ“ Verified purchase