Tirzepatide
The GLP-1 behind Mounjaro and Zepbound. Works on two targets rather than one.
Also listed as Mounjaro, Zepbound, tirz, tirze.
Peptide Compare tracked 30 vendors selling Tirzepatide on 10 Oct 2026. The cheapest in-stock 5 mg vial is $7.65 per mg at Hydro Research after its 15% coupon, 47% under the $14.50 median. Prices are scraped from vendor sites; trust scores come from Finnrick blind tests.
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Best value right now · 5 mg
Hydro Research
IN STOCKUNTESTED
Per mg47% under the $14.50 median
Vial price5 mg · verified Oct 10
Avg per mg · 5 mg
$47.08+51.9%
Ranged $14.54 – $47.08 across 30 vendorsCompare 10 vendors · 5 mg
Across all sizes, verified in-stock listings run $30.99 to $1649.99 from 15 vendors.
VendorStock
06
Royal PeptidesUNTESTED · OUT
$7.20$36.00
08
Pepvida LabsUNTESTED · OUT
$13.00$65.00
09
Aavant ResearchTRUST 8.7 · OUT
$16.60$83.00
Showing 8 of 10 vendors · 2 more from $16.60/mg
Tirzepatide prices verified Oct 10, 2026
$7.65/mgHydro Research · $38.25
Buy best priceSee how Tirzepatide moved against the rest of the catalogue in the Peptide Price Index: median price per mg now versus 30 and 90 days ago, every tracked peptide, with a CSV.
Tirzepatide price by vial size
| Vial size | Lowest per mg | Vial price | Vendor |
|---|---|---|---|
| 5 mg | $7.65 | $38.25 | Hydro Research10 vendors carry it |
| 10 mg | $3.10 | $30.99 | Modern Research22 vendors carry it |
| 15 mg | $5.33 | $79.99 | Platinum Lion12 vendors carry it |
| 20 mg | $2.85 | $56.99 | Modern Research12 vendors carry it |
| 30 mg | $2.22 | $66.65 | Modern Research26 vendors carry it |
| 50 mg | $3.49 | $156.99 | NorthWest Peptides6 vendors carry it |
| 100 mg | $1.76 | $175.99 | Modern Research6 vendors carry it |
| Other | $2.12 | $169.99 | Modern Research21 vendors carry it |
Verified 10 Oct 2026. Lowest figures are in-stock listings checked within the last week, with any coupon applied; a size with none says so.
Price movement · 30 days
0%median per mg, all sizes
Reading on Tirzepatide
- MEDVi: what the NYT profile left out — 6 min read
See our top-ranked Tirzepatide vendors
Ranked by Finnrick trust score, independent lab testing, and price.
Compare Tirzepatide head-to-head
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Quick Summary
A once-weekly dual GIP and GLP-1 receptor agonist, approved by the FDA and studied for type 2 diabetes, weight management and obstructive sleep apnea. Available from 30 vendors, priced from $30.95 to $1649.99.
Research: In SURMOUNT-1, tirzepatide 15 mg produced a 22.5% mean body weight reduction at 72 weeks on the efficacy estimand and 20.9% on the treatment-regimen estimand, with 57% of participants losing 20% or more of their body weight.
Side effects: From the Zepbound US prescribing information: nausea, diarrhea, constipation, vomiting, injection site reactions
FDA-approvedMounjaro for type 2 diabetes; Zepbound for weight management and, since December 2024, for moderate to severe obstructive sleep apnea in adults with obesity
- 25 of 30 vendors currently have it in stock
- Highest-rated vendor: NUPEPS Peptides (9.0 Finnrick score)
- Most common vial size: 30mg
- Category: Weight Loss (GLP-1) — GLP-1 receptor agonists for weight management
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