GLP-1 Receptor Agonists: A Research Primer
Semaglutide, tirzepatide, retatrutide — how the latest generation of incretin peptides differ.
Incretin biology is one of the most active research areas in metabolic science. This primer reviews how single-, dual-, and triple-receptor agonists differ in mechanism.
Single-receptor agonists
Semaglutide is the most-studied long-acting GLP-1 mono-agonist in current research literature.
Dual GIP/GLP-1 agonists
Tirzepatide adds GIP receptor activity, producing different downstream signalling profiles in research models.
Triple agonists
Retatrutide adds glucagon receptor activity and represents the current research frontier.
For research use only
Content in the Thrive Peptides journal summarizes published research and is intended for qualified investigators. It is not medical advice and does not describe products for human consumption.
Products discussed in this article

Dual GIP/GLP-1 receptor agonist for incretin pathway research.

Triple agonist (GIP/GLP-1/glucagon) used in next-generation metabolic studies.
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