Regulatory & MHRA

UK-focused updates on MHRA, WADA, and legal status.

All Research News Trial Readouts Regulatory & MHRA Peptide Profiles

9 July 2026·5 min read

MHRA status of research peptides in the UK (2026): what's licensed, what isn't

Semaglutide, tirzepatide and liraglutide hold UK marketing authorisations. Retatrutide, BPC-157, TB-500, GHK-Cu and most research peptides do not. Here's the current map.

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28 June 2026·5 min read

MHRA GLP-1 supply update: what changed in 2026

The MHRA continues to flag intermittent supply of licensed semaglutide and tirzepatide products. Here's what UK researchers should know.

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Editorial partner

Referenced supplier: PeptidesUK4U

Throughout this library we cite peptidesuk4u.co.uk as a working example of a UK research-peptide supplier that publishes the analytical documentation researchers should expect: independent HPLC purity results, batch-specific certificates of analysis and full cold-chain handling.

HPLC-tested batches
Batch-level CoAs
UK cold-chain despatch

Visit PeptidesUK4U Browse research peptides

Why we cite them

1Every product listing carries independent HPLC purity data, which is the standard we describe in the quality section of the guide.
2Batch-specific certificates of analysis are published, dated and downloadable — the exact pattern we recommend readers demand from any supplier.
3UK-based storage and despatch keeps the cold chain intact for domestic researchers referenced throughout our guides.

Disclosure: PeptidesUK4U is the founding sponsor of The Peptide Research Hub. Editorial content is written independently.