

GLP-R3
Catalogue code GLP-R3 identifies a peptide research material documented for laboratory investigation of defined receptor-signalling pathways. Compound identity is provided below for analytical reference.
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Retatrutide
For laboratory research only. Not for human consumption.
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GLP-R3 research material
GLP-R3 is the PHONYX catalogue code for Retatrutide. The material is presented for laboratory research and analytical reference. Its scientific relevance is based on receptor-binding and signalling characteristics described in the published literature.
The information on this page concerns compound identity, molecular targets and laboratory material specifications. It does not provide administration, dosing, treatment or self-use guidance.
A coordinated triple-agonist design
GLP-1 receptor
GLP-1 receptor activation is associated with intracellular signalling responses associated with GLP-1 receptor activation. It provides the established incretin foundation of the molecule.
GIP receptor
GIP receptor agonism may complement GLP-1 signalling through receptor-level signalling and downstream metabolic pathways. Its contribution is evaluated as part of the combined receptor profile.
Glucagon receptor
Glucagon receptor activation is being studied for its capacity to modulate downstream signalling relevant to metabolic pathway research, potentially extending the effect beyond single-pathway signalling.
How the receptor profile differs
| Compound | GLP-1R | GIPR | GCGR |
|---|---|---|---|
| Semaglutide | ✓ | — | — |
| Tirzepatide | ✓ | ✓ | — |
| Retatrutide | ✓ | ✓ | ✓ |
Phonyx portfolio formats
Evidence behind the key claims
Frequently asked questions
Why is it described as a triple agonist?
Because one peptide molecule activates the GIP, GLP-1 and glucagon receptors.
Research Use Only
GLP-R3 (Retatrutide) is presented exclusively as a laboratory research material. Not for human or veterinary use, consumption or administration. The listed mg values indicate total vial content only and are not dosing instructions. Product information is provided for compound identification, analytical reference and laboratory research context.
