What Is TRZ Peptide?
"TRZ peptide" is research-market shorthand for tirzepatide, a 39-amino-acid peptide that activates both the GIP and GLP-1 receptors. Suppliers list it as GLP-2 TRZ because it is a two-receptor ("GLP-2") agonist, then add their own prefixes, which is why searches show TRZ-2, G2-TRZ, AL-TRZ and more. It is supplied as a lyophilized powder for in vitro research only.
| Property | Value |
|---|---|
| Receptors | GIPR + GLP-1R (dual agonist) |
| Length | 39 amino acids |
| Molecular weight | ~4,813 Da |
| Half-life extension | C20 fatty diacid (albumin binding) |
| Reported half-life | ~5 days |
| Evo Peptides name | EP-2T |
TRZ-2, G2-TRZ, AL-TRZ: Are They the Same?
Yes. Every name in the first five rows below is the same molecule. Confirm the molecule before you compare prices, then check the COA's mass-spec result against ~4,813 Da.
| Name you searched | What it is | Same molecule? |
|---|---|---|
| TRZ peptide · GLP-2 TRZ · GLP2 TRZ | Research-market catalog names | Yes |
| TRZ-2 · G2-TRZ · G2 TRZ | Shortened catalog names | Yes |
| AL-TRZ · PP-2 TRZ · GLA-2 TRZ | Supplier-specific prefixes on the same compound | Yes |
| EP-2T | Evo Peptides catalog name | Yes |
| Tirzepatide · LY3298176 | Nonproprietary name and development code | Yes |
| GLP-2 (glucagon-like peptide-2) | A different, natural intestinal hormone | No |
| GLP-3 RT | Triple agonist (retatrutide) | No |
GLP-2 TRZ is not glucagon-like peptide-2, the natural intestinal hormone. The "2" means two receptors. If a listing or paper discusses GLP-2 and gut mucosal growth, it is a different molecule.
How Much Does TRZ Peptide Cost?
Research-grade GLP-2 TRZ usually starts around $50–$80 per vial at U.S. suppliers in 2026, depending on vial size. Evo Peptides sells 15mg for $49.95 and 30mg for $74.95. The 30mg vial and the 2 × 15mg pack are both 25% cheaper per milligram than a single 15mg vial, and lot TRZ0001 measured above label in both sizes.
| Vial | Price | $ / labeled mg | Net content | $ / tested mg | HPLC |
|---|---|---|---|---|---|
| 15mg | $49.95 | $3.33 | 15.81mg | $3.16 | 99.91% |
| 30mg | $74.95 | $2.50 | 31.50mg | $2.38 | 99.76% |
| 2 × 15mg pack | $74.95 | $2.50 | 2 × 15.81mg | $2.37 | 99.91% |
A vial's label is a target. Net peptide content on the COA is what is actually inside. Lot TRZ0001 tested at 15.81mg (15mg label) and 31.50mg (30mg label), so the real cost per milligram is below the sticker math.
15mg vs 30mg: Which Vial to Order
What a GLP-2 TRZ COA Should Show
A usable TRZ COA shows a lot number matching your vial, ≥99% HPLC purity, identity confirmation and net peptide content. Here is the current Evo Peptides result:
| Test | 15mg vial | 30mg vial |
|---|---|---|
| HPLC purity | 99.91% | 99.76% |
| Identity | Confirmed | Confirmed |
| Net peptide content | 15.81mg | 31.50mg |
| Endotoxin | NMT 0.05 EU/mL | NMT 0.05 EU/mL |
Full certificates are in the COA library. For how to read each line, see How to Read a Peptide COA.
7-Point TRZ Supplier Checklist
- Lot-matched COAThe lot on the COA matches the lot on your vial.
- Independent third-party labTested outside the supplier, with the lab named on the certificate.
- HPLC purity ≥99%With the chromatogram, not only a number.
- Identity near 4,813 DaMass spec or reference-standard identity for tirzepatide.
- Net content at or above labelExposes under-filled vials.
- Recent test dateWithin the past 12 months.
- Strict RUO labelingNo dosing, weight-loss or human-use claims.
TRZ vs GLP-3 RT
GLP-2 TRZ activates two receptors (GIP, GLP-1); GLP-3 RT activates three (adding glucagon). TRZ is also cheaper per milligram. For the full side-by-side, see GLP-3 RT vs GLP-2 TRZ; for mechanism detail, the GLP-2 TRZ research guide.
GLP-2 TRZ 30mg + GLP-3 RT 30mg
Running both isolates what the glucagon arm adds. $74.95 + $134.95 = $209.90, which clears the $200 free-shipping threshold.
Storage After Delivery
- Match the lot on the vial to the COA and file it.
- Lyophilized: sealed, dark, −20 °C long-term or 2–8 °C short-term.
- Reconstituted: refrigerate and aliquot to limit freeze-thaw cycles; use Evo H2O and the reconstitution calculator.
More in the peptide storage guide.