Tirzepatide is a synthetic 39-amino acid dual receptor agonist, engineered to engage both the GIP (glucose-dependent insulinotropic polypeptide) receptor and the GLP-1 receptor from a single molecule. It sits between semaglutide, the single agonist, and retatrutide, the triple agonist, in the incretin receptor series, and it is one of the most requested compounds in current metabolic research. Heartland Bio Labs supplies tirzepatide for laboratory research in 10mg and 20mg vials with independent analytical verification.
What tirzepatide is
Tirzepatide is built on a GIP backbone modified to also activate the GLP-1 receptor, with a C20 fatty diacid chain providing albumin binding and a multi-day half-life. That dual-receptor design is the reason it exists as a research compound: it lets laboratories study how two incretin pathways behave when engaged together rather than separately. The molecule runs to roughly 4,814 daltons across its 39 residues. Structural detail is in our tirzepatide research overview.
Product characteristics
- Synthetic 39-amino acid peptide, dual GIP and GLP-1 receptor agonist
- C20 fatty diacid modification, albumin binding, extended half-life
- Supplied as white lyophilized powder in sealed vials
- Available strengths: 10mg and 20mg
- HPLC purity and mass spectrometry identity, tested independently
- For laboratory research use only
Tirzepatide vs retatrutide and semaglutide
One receptor separates tirzepatide from each neighbor: remove GIP activity and you have semaglutide; add glucagon receptor activity and you have retatrutide. Because the differences are so clean, the three make natural comparators, and many programs order two or all three together. We published a full retatrutide vs tirzepatide comparison covering structure, verification, and practical handling side by side. For co-exposure study designs, a combined retatrutide and tirzepatide vial is also stocked.
How this product is verified
Tirzepatide is tested by an independent analytical laboratory: HPLC for purity and mass spectrometry to confirm the molecule is what the label says. Certificates are published in our COA portal for review before you order. High demand has pulled low-quality material into this market, and the difference between suppliers is not the product photo, it is whether the numbers behind it were produced by someone with no stake in the result. Our guide on HPLC vs mass spectrometry explains why both tests matter.
Strengths and pricing
Tirzepatide ships in 10mg vials at $105 and 20mg vials at $135. Per milligram, the 20mg vial works out to $6.75/mg against $10.50/mg at 10mg, a meaningful spread for laboratories running extended work. Both strengths ship from stock, same-day for orders before 2:00 PM Central from the Tulsa, Oklahoma area. Volume pricing runs through our wholesale program.
Storage and handling
Keep lyophilized vials sealed, cool, dry, and away from light, with refrigeration for longer storage. Reconstitute with bacteriostatic water, refrigerate the solution, and use within your protocol's defined window. The compound tolerates handling well in lyophilized form; solutions should not be agitated or repeatedly warmed and cooled.
Where to buy tirzepatide for research
The checklist that separates suppliers is short: independent testing rather than in-house claims, certificates published before purchase rather than on request, identity confirmation alongside purity, and honest research-use terms. Our guide to vetting a research peptide supplier walks through it step by step. Run us through it, then run everyone else.
Reconstitution math
Work out concentration (mg/mL), amount per volume and molarity for any vial size with the Tirzepatide reconstitution calculator, general peptide calculator. For the bench procedure see how to reconstitute peptides.
Research use only
Tirzepatide from Heartland Bio Labs is sold strictly for laboratory research and identification purposes. It is not a drug, it has not been evaluated by the FDA, and it is not for human or veterinary use of any kind. By purchasing, you affirm that you are qualified to handle research compounds and agree to our research use policy.
