Tirzepatide

What is Tirzepatide?

Tirzepatide is a 39-amino-acid synthetic peptide with dual agonist activity at the GIP and GLP-1 receptors. It is the reference compound for research into dual incretin signalling: how activating both receptors together affects insulin secretion, gastric emptying, appetite pathways and body composition in preclinical models. Pepstral supplies tirzepatide as a lyophilized powder, 10 mg net peptide per vial, tested by an independent US laboratory before listing.

→Read the full Tirzepatide research guide

What is Tirzepatide studied for?

• Dual incretin receptor signalling and cAMP assays
• Beta-cell function and insulin secretion models
• Appetite and gastric-emptying pathways
• Comparisons against GLP-1-only agonists

All applications above are in-vitro or preclinical research contexts. Tirzepatide is sold for laboratory research only and is not for human or animal use.

What does the certificate for lot TZ-2608-C show?

Every lot of Tirzepatide is tested by an independent US laboratory before it is listed. The report for lot TZ-2608-C is in the COA library and the lot number printed on the vial matches it. The current results:

How is Tirzepatide handled and stored?

Sealed vials are stored at -20°C away from light and keep for 24 months. To reconstitute, add bacteriostatic water slowly down the inside wall of the vial and swirl until clear; never shake. Once in solution, keep at 2 to 8°C and use within the 28-day window on the certificate. The reconstitution guide covers volumes and syringe units and the concentration table gives the numbers for this vial.

Frequently asked questions

Related reading

• Aggregation: the failure a certificate will never show youAggregation changes no mass and no purity figure, so no certificate can catch it. This post covers what drives peptides to associate, which sequences are most at risk, how to spot it, and the handling habits that prevent it.
• How to choose a vial size for your studyLarger vials cost less per milligram and open sooner. This post works through the real trade — unit cost against the stability clock that starts at reconstitution — with the per-milligram maths for every size in the catalogue.
• Why research peptide prices vary so much between suppliersThe same compound can cost half as much from one supplier as another. Sequence length, purification passes, net peptide content, per-lot testing and fill accuracy explain most of the gap. Here is where each shows up on the certificate, with a worked price-per-net-milligram comparison.