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.
Read the piece →Insights
Research news, trial readouts, and regulatory analysis
Long-form editorial on peptide science — what's changing in the literature, in the MHRA, and in the compounds researchers actually work with.
BPC-157 oral vs injectable: what the rodent literature actually shows
The oral BPC-157 debate keeps returning. Here's what the animal pharmacokinetic and efficacy data suggests about route of administration.
Read the piece →Cagrilintide: the amylin analog behind CagriSema
Novo Nordisk's cagrilintide is one half of the CagriSema combination. Here's how the amylin pathway complements GLP-1 agonism.
Read the piece →HPLC purity: what "≥97%" on a certificate of analysis actually tells you
Purity numbers on a peptide COA are more nuanced than a single percentage. Here's how to read them properly.
Read the piece →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
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.