Lot-Documented
HPLC-Verified
US Pharmacist
Same Reorder Price
GLPs · DUAL GIP/GLP RECEPTOR AGONIST
Tirzepatide
30 mg · Lyophilized vial · 39 AA
Tirzepatide — pharmacy-verified, lot-tested, and shipped from our 503B facility in Dallas. Released only after a US-licensed pharmacist signs off on the batch.
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Single- Purity Guarantee. If a lot fails our ≥99% HPLC standard, full refund + replacement.
- Lot-specific COA on demand — anytime, free
- Same reorder price — forever, no upcharge
$121.00
Single
— About this compound
Tirzepatide.
Class · Dual GIP / GLP-1 receptor agonist (synthetic 39-amino-acid peptide)
Origin. Developed by Eli Lilly. First characterized in the open scientific literature in 2018 (Coskun et al.). Approved by the FDA as Mounjaro (2022) for type 2 diabetes and as Zepbound (2023) for chronic weight management.
Tirzepatide (research code LY3298176) is a synthetic 39-amino-acid peptide engineered to act as a single-molecule dual agonist at the glucose-dependent insulinotropic polypeptide (GIP) receptor and the glucagon-like peptide-1 (GLP-1) receptor. The molecule incorporates a C20 fatty-acid moiety that supports extended duration of action via albumin binding.
Tirzepatide is a regulated therapeutic compound approved for human use under separate brand names in regulated channels. The Merit Sciences offering is supplied for research use only — not for human or veterinary administration. Researchers must confirm jurisdictional eligibility before procurement.
— Common research applications
- Incretin signaling research
- Glucose homeostasis models
- Dual receptor pharmacology
- Body weight regulation studies
- Comparative GLP-1 / GIP agonist work
— Mechanism
How it's been studied.
Binds and activates both the GIP receptor and the GLP-1 receptor with picomolar affinity. The dual-incretin pharmacology is reported to produce additive effects on insulin secretion and glucagon suppression in preclinical metabolic research models.
Mechanism descriptions reflect findings reported in the preclinical and basic-research literature. They are not clinical conclusions and not statements of therapeutic effect.
— The Chemistry
The numbers, plainly.
CAS
2023788-19-2
Molecular weight
4813.5 Da
Formula
—
Sequence
—
Format
Lyophilized powder
Vial dose
30 mg
Purity (HPLC)
≥99%
Amino acids
39
Half-life
~5 days (preclinical and clinical).
Solubility
Reconstitutes in bacteriostatic water; clear solution.
— Why Merit
The supplier difference.
How Merit compares to the two alternatives most research buyers consider for Tirzepatide.
Comparison reflects published facility status and standard industry practice. Compounding pharmacy availability of research peptides varies by jurisdiction.
— How it's made
From compound to your shelf.
Every Merit lot follows the same documented path. Five steps, every one verifiable.
- 01
Sourcing
Compound starts as a research-grade API.
Active pharmaceutical ingredient sourced from FDA-registered manufacturers. Identity confirmed against reference standard before any compounding begins.
- API from FDA-registered manufacturers
- Identity verified against reference standard
- Chain of custody documented
- 02
Compounding
Sterile-filled at a 503B facility.
Lyophilized in a cleanroom at our 503B outsourcing facility. The powder format gives ≥24 months sealed stability — no cold-chain shipping required.
- 503B outsourcing facility, FDA-registered
- ISO-certified manufacturing process
- Lyophilized powder for transit stability
- 03
Verification
Every batch HPLC-tested.
Reverse-phase HPLC-UV (UV/MS for higher-MW peptides) confirms identity and purity for every lot before it leaves the lab. The chromatogram is archived.
- Reverse-phase HPLC, per-lot
- ≥99% purity floor — every batch
- Chromatogram archived for every lot
- 04
Sign-off
A US-licensed pharmacist releases the lot.
No batch ships without a pharmacist reviewing the chromatogram, identity report, and lot documentation. The pharmacist holds the release authority.
- US-licensed pharmacist on every lot
- Pharmacist holds release authority
- No batch ships unsigned — ever
- 05
Dispatch
Ships from Dallas in 48 hours.
Vials labeled with lot ID, tested date, and CAS. Order before 2pm CT Monday–Thursday for same-day dispatch. UPS Ground, tracked + insured.
- 48hr dispatch from Dallas, TX
- Lot ID printed on every vial label
- UPS Ground, tracked + insured
Every step above can be verified for any specific lot by emailing rx@meritsciences.com with the lot number from your vial label.
— Research references
The published record.
Peer-reviewed work cited in the public scientific literature. Links resolve to PubMed or the publisher of record.
- 01
LY3298176, a novel dual GIP and GLP-1 receptor agonist for the treatment of type 2 diabetes mellitus
Coskun T, Sloop KW, Loghin C, et al. · Molecular Metabolism · 2018
- 02
Efficacy and safety of LY3298176, a novel dual GIP and GLP-1 receptor agonist, in patients with type 2 diabetes: a randomised, placebo-controlled and active comparator-controlled phase 2 trial
Frias JP, Nauck MA, Van J, et al. · The Lancet · 2018
- 03
Tirzepatide versus Semaglutide Once Weekly in Patients with Type 2 Diabetes
Frias JP, Davies MJ, Rosenstock J, et al. · New England Journal of Medicine · 2021
- 04
Tirzepatide Once Weekly for the Treatment of Obesity
Jastreboff AM, Aronne LJ, Ahmad NN, et al. · New England Journal of Medicine · 2022
Inclusion of a reference does not constitute a clinical claim or recommendation.
— Common Questions
Got questions.
Why does Merit ship lyophilized?+
Lyophilized format gives ≥24 months sealed stability at -20°C — significantly longer than pre-reconstituted, which has a 30-day shelf life once in solution. You reconstitute at the moment of use, when potency is at its peak.
How do I verify my lot's COA?+
Your vial label carries the lot number. Use that number to pull the COA on our site at any time — the COA for your specific batch lives at /coa/[lot-id] and stays accessible for the life of the product.
What does "pharmacy-verified" actually mean?+
A US-licensed pharmacist on our team reviews every batch before release. They sign off on the lot's purity, identity, and release. No batch ships without that sign-off — and that's what separates Merit from a reseller catalog.
Will my bank flag this purchase?+
Statements show as Merit Sciences LLC. Standard merchant descriptor — does not trigger category-code flags. All major cards via Stripe; PayPal accepted at checkout.
How fast does it ship?+
48 hours from order to dispatch, Monday through Thursday. UPS Ground, tracked + insured. From Dallas, TX, most US addresses receive within 3-5 business days.
— Talk to a Pharmacologist
Question we didn't answer?
Our team answers compound questions, lot questions, and protocol questions — same business day. No bots, no tickets.
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