What is Tirzepatide and what is it studied for?

Tirzepatide is a synthetic 39-amino-acid dual-agonist peptide that engages both the GIP receptor and the GLP-1 receptor within a single molecule. It is widely used in preclinical research as a reference dual-incretin probe, especially in studies comparing combined receptor activation versus single-receptor agonists. It is supplied strictly for laboratory research and is not approved for direct human administration.

How is Tirzepatide purity verified?

Every batch ships with an independent ISO/IEC 17025 Certificate of Analysis covering HPLC purity at 214 nm, mass-spec identity confirmation, endotoxin by LAL, and residual solvent against ICH Q3C limits. The batch number printed on the vial label resolves against the public COA at /verify so a vial can be cross-checked against the lab record in one step.

How should Tirzepatide vials be stored?

Lyophilized Tirzepatide is best stored sealed inside its moisture-barrier pouch, refrigerated at 2 to 8 degrees Celsius and protected from light. For longer horizons (months and beyond) a frost-free minus 20 degrees Celsius freezer is acceptable as long as the vial stays sealed and is allowed to equilibrate to room temperature before opening so condensation does not deposit on the lyophilized cake.

Is Tirzepatide legal to import for research?

Tirzepatide is sold strictly for laboratory research. Import rules vary by jurisdiction and change often — the buyer is the importer of record and is responsible for confirming that the destination permits the imported research-use peptide. We cancel and refund any order bound for a destination that has changed status before dispatch.

Why choose Tirzepatide over co-administered single-receptor probes?

Co-administering two separate single-receptor probes introduces timing and exposure confounds — the two molecules reach the receptors at different rates and clear independently. Tirzepatide is a single molecule, so the same exposure window engages both receptors at once, isolating "simultaneous dual activation" as the experimental variable cleanly.

Tirzepatide deep dive · research transcript

Tirzepatide (GIP/GLP-1 dual agonist)

Tirzepatide is a synthetic 39-amino-acid engineered peptide assembled into a single molecule to engage both the GIP receptor and the GLP-1 receptor. The construct carries a C20 fatty diacid side chain that drives reversible albumin binding and slows renal clearance — used in research models as a reference probe for simultaneous dual-receptor engagement rather than sequential single-receptor activation.

Batch: …
Purity: …
Vial: …
Lab: …

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Vial & molecule

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Batch LAB-2602 resolves against the public Certificate of Analysis.

The same lookup tool lives at /verify — paste a different batch ID below to swap the resolved record inline, or open the full verification tooling to inspect purity, identity, and lab-of-record side by side.

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How to read this Certificate of Analysis

Five fields, plain English.

Batch ID
The lookup key — printed on the vial label and on the public certificate. Type it into the input above to swap to Semaglutide, NAD+, BPC-157, or any other assay in this run.
Third-party lab
Apex Veritas Analytical — ISO/IEC 17025-accredited, not an in-house assay. The lab name on the certificate is the auditing point of record; the printed batch resolves against the lab report, not a marketing claim about purity.
Purity %
Reported from HPLC at 214 nm — the standard identity + purity assay for engineered peptide analogues. The chromatogram is the visual proof: the printed percentage is the integrated area of the dominant analogue peak against the total integrated area.
Test date
The calendar date the assay was run — distinct from the manufacturing date. A recent test date means the certificate reflects the vial as it sits on the shelf today, not a snapshot from months ago.
Residual solvent
Trace synthesis solvent carried through the purification step, reported in parts-per-million against the ICH Q3C safety threshold. A clean residual-solvent panel reads as a left-over signature of how thoroughly the crude engineered construct was purified.

How this batch was made

Three steps from synthesis to a signed certificate.

Lyophilization

The engineered dual-incretin construct is freeze-dried from the working buffer to lock in the C20-fatty-diacid–conjugated long-acting form at the assay date. In solution the construct is more susceptible to hydrolysis, so the sealed lyophilized cake preserves the albumin-binding profile that drives extended receptor engagement until the day of reconstitution.

HPLC

Reverse-phase high-performance liquid chromatography at 214 nm is the identity + purity assay for this construct. The chromatogram is the visual proof that the right molecule is the dominant peak; the 99.4% printed on the certificate is the integrated area of that peak against the total integrated area.

Mass spec

Electrospray ionization mass spectrometry is the identity confirmation; the observed molecular ion mass is read against the theoretical monoisotopic mass for the engineered dual-incretin construct (C225H348N48O68) so the framework of the recovered molecule matches the formula on file.

Other research lineages in this catalog.

Engineered-incretin peer · Semaglutide

Semaglutide (Long-acting GLP-1 analogue)

Synthetic 31-amino-acid analogue of the endogenous incretin GLP-1 — paired with Tirzepatide to contrast the single-receptor and dual-receptor research lineages in the same incretin class.

Read the Semaglutide research hub

Metabolic / redox peer · NAD+

NAD+ (Nicotinamide Adenine Dinucleotide)

The oxidized hydride-carrying cofactor central to mitochondrial electron transport and sirtuin / PARP signaling — paired with Tirzepatide to contrast the dual-incretin receptor lineage with the redox-cofactor lineage.

Read the NAD+ research hub

Explore further

Send back to the full research catalog (every compound, grouped by family) or jump into the lab-graded batch strip that links every shipped Certificate of Analysis to its third-party HPLC + Mass Spectrometry report.

Browse the peptides catalog Open the lab-graded batch strip

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