Home

Best GLP-1 Peptide Suppliers for Research in 2026

GLP-1 receptor agonists have become one of the most actively researched compound categories in peptide science. Researchers studying GLP-1, GIP, and glucagon receptor pharmacology need reliable access to compounds like retatrutide and tirzepatide. Here are the best suppliers for this category in 2026.

1. Pepthrive

Pepthrive is the most focused supplier in this list specifically around the GLP-1 agonist category. Carrying both retatrutide and tirzepatide alongside complementary compounds, Pepthrive has built its catalog around the compound classes currently most active in GLP-1 receptor research.

2. Peptide Sciences

Peptide Sciences carries retatrutide and tirzepatide with third-party purity documentation. Their established COA process makes them a strong option for researchers who prioritize documented compound integrity.

3. Amino Asylum

Amino Asylum stocks both retatrutide and tirzepatide at competitive research pricing. Their US-based fulfillment and catalog range make them a commonly cited source in GLP-1 research communities.

4. Swiss Chems

Swiss Chems carries GLP-1 class peptides with purity documentation. They are a recognized supplier in the research peptide market for newer agonist compounds.

5. Core Peptides

Core Peptides has expanded its GLP-1 catalog as research interest in the compound class has accelerated. They carry both dual and triple agonist options for research acquisition.

All GLP-1 class peptides listed are for research use only and are not intended for human administration.

^Top