How it works
Tirzepatide is a 39-residue synthetic peptide that engages two incretin pathways simultaneously: the GLP-1 receptor and the GIP receptor. Co-activation produces effects on insulin secretion, gastric emptying, and adipose signaling that single-receptor agonists do not replicate. In published in-vitro and animal models, the compound shows extended plasma half-life relative to native incretins, attributed to a C-20 fatty diacid moiety that promotes albumin binding.
Learn more about the science →Certificate of Analysis+
Each Tirzepatide vial ships with a batch-specific COA documenting peptide identity by LC-MS, purity by reverse-phase HPLC (≥99%), mass spec confirmation against MW 4,813.5, endotoxin assay by LAL, residual solvent screening, and physical appearance. Third-party verification by an ISO-17025 laboratory.
View full certificate →Specifications+
Storage & handling+
Lyophilized: −20°C, 24 months unopened. Reconstituted: 2–8°C, use within 30 days. Reconstitute with bacteriostatic water; swirl, do not shake. Avoid repeated freeze-thaw.
We ship in insulated parcels with phase-change cooling and a tamper-evident seal.
FAQs+
What is the molecular weight and how was it confirmed?+
4,813.5 g/mol. Confirmed by LC-MS, single dominant peak. Mass spec trace included in every COA.
How does Tirzepatide differ from Semaglutide?+
Tirzepatide engages both GIP and GLP-1; Semaglutide engages GLP-1 only. The dual mechanism produces effects in metabolic models that single-receptor agonism cannot replicate.
What's the recommended reconstitution volume?+
Investigator-dependent. Common research preparation: 2 mL bacteriostatic water per 30mg vial, yielding 15 mg/mL.
Is Tirzepatide stable after reconstitution?+
In published stability work, stable at 2–8°C for at least 30 days when protected from light.
What's the lot traceability process?+
Each vial is etched with a lot number prefixed TZP-. Every COA, batch record, and shipping manifest references the same lot.
Can I purchase a smaller working dosage?+
Lower research preparations are typically diluted from a stock vial; we do not split vials at the source. Reconstitute the 30mg vial to the concentration your protocol requires.
The research behind this compound, cited in full.
Provided for context only. None of the studies cited below evaluate hábit material specifically; they document the published literature on the compound and its mechanism. Research-use claims are not therapeutic claims.
- [01] Coskun T. et al. Mol Metab 18 (2018): 3–14.
- [02] Frias JP. et al. Lancet 398 (2021): 583–598.
- [03] Min T. & Bain SC. Diabetes Ther 12 (2021): 143–157.
- [04] Willard FS. et al. JCI Insight 5 (2020): e140532.
Verified buyer notes
Initials only — every quote is verified against an order record. We don’t ghost-write reviews.
“COA matched what we ran in-house. Powder reconstituted clean, no haze. Did exactly what we needed it to.”
“Switched after two bad lots from a previous source. Three orders in, zero issues.”
“Asked support a purity question and got the raw HPLC trace back within the hour. That transparency is why we reorder.”