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- Independently tested
- Janoshik Analytical
- Certificate of analysis
- Published on this page
- Cold-chain shipped
- Insulated & tracked
- US-fulfilled
- Synthesized & shipped in the US
Peptides
GLP-TRZ (40mg)
Also known as Tirzepatide · GLP-TRZ
See every Tirzepatide strength
99.789% assayed purityOur testing standards
Dual GIP/GLP-1 research peptide. 40mg per vial.
Size
10mg40mg
Out of stockTemporarily unavailable — check back soon.
- Ships same day
- Order by 2 PM CT, Mon–Fri
- 3–5 business days
- Standard · free over $300
- Cold-chain & tracked
- Insulated and tamper-evident
- Shipping protection
- Optional at checkout · $6.99 + 5%
For laboratory research use only. Not for human or animal consumption.
Specifications & details
A research peptide supplied as a lyophilized powder for laboratory study.
Peptide research
- Format
- Lyophilized powder
- Category
- Peptides
- Assay purity
- 99.789%
- Molecular weight (free base)
- 4813.53 g/mol
- Sequence length
- 39 amino acids
- CAS number
- 2023788-19-2
- Formula
- C225H348N48O68
- Source
- Synthetic
- Testing
- Independently tested by Janoshik Analytical
- Origin
- US-synthesized & fulfilled
- Storage
- 2–8 °C sealed, away from light; 2–8 °C after reconstitution
- Reconstitution
- 2–5 mL Progression H2O (13.3 mg/mL at 3 mL)
Storage & reconstitution
Store lyophilized vials cold and away from light. Reconstitute with Progression H2O (sterile diluent) for research handling; keep refrigerated after reconstitution. Handle per your lab's standard procedures.
Testing & compliance
Independently tested by Janoshik Analytical. The certificate of analysis is published on this page with the laboratory's verification key. Sold strictly for laboratory and research use only — not for human or animal consumption, and not a drug or supplement.
Independently tested
Certificate of analysis
- Testing laboratory
- Janoshik Analytical
- Certificate issued to
- HM Peptide
- Batch
- 2026-08
- Analysed
- 31 Aug 2026 · 15 Sep 2026
| Analyte | Report | Result |
|---|---|---|
| GLP-TRZContent per vial | #220473 | 42.49mg |
| PurityHPLC | #220473 | 99.789% |
| TAMCTotal aerobic microbial count | #220474 | Pass |
| TYMCTotal yeast and mould count | #220474 | Pass |
Verify this yourself
Check these reports directly with the testing laboratory at janoshik.com/verify using the keys below. We don't hold or control that record.
- Report #220473LQGPI71K9M2Y
- Report #220474ZRPNGYV22ZRJ
The laboratory recorded this sample as “Tirzepatide 40mg” (reports #220473, #220474). This store lists the compound under its own name; the certificate is reproduced under the laboratory's, so the two can be matched when the key above is verified.
Testing was performed by Janoshik Analytical, an independent third-party laboratory, on a sample submitted by HM Peptide, to whom the original certificates were issued. Progression Labs distributes material from the batch above and reproduces the laboratory's findings without alteration. Results relate only to the sample tested.
Customer reviews
Reviews from verified research orders appear here once approved.
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