Three peptides used in metabolic research, separated by how many receptors each one engages.
| Semaglutide | Tirzepatide | Retatrutide | |
|---|---|---|---|
| Receptors | GLP-1 | GIP + GLP-1 | GIP + GLP-1 + glucagon |
| Type | Single agonist | Dual agonist | Triple agonist |
| Structure | GLP-1 analogue with a C18 fatty-acid side chain | 39-amino-acid peptide with a C20 fatty-acid moiety | Single peptide chain engineered for three receptors |
| CellMind format | 10 mg | 10 mg, 30 mg | 10 mg, 30 mg |
| US price | $49 | $79 / $179 | $99 / $189 |
How researchers choose between them
- Single-pathway work (GLP-1 receptor only): semaglutide.
- Comparing incretin co-agonism (GIP and GLP-1 together): tirzepatide.
- Adding glucagon-receptor signalling to the incretin pair: retatrutide.
Testing
All three are tested by Janoshik Analytical for identity and purity (HPLC). The certificate for each batch is linked on the product page.
US shipping
From Gaithersburg, Maryland, 48–72 hours, tracked, no customs charges, free over $150.
Retatrutide 10 mg → · Tirzepatide 10 mg → · Semaglutide 10 mg →
Research use only. Not for human or veterinary use.