Tirzepatide 40 mg vial
Prices from 8 vendors, and how much to draw for the commonly cited doses.
Read the regulatory status before you compare prices.
In January 2026 the FDA asked that the warning about suicidal thoughts and behaviour be removed from the obesity versions of this drug family after a review found no increased risk. Labels were updated in February 2026.
What a 40 mg vial costs
Every vendor we track that lists this exact size, cheapest first. Sort order is price only; affiliate status never changes it.
Median $3.90, or $3.90 per mg, across the 8 vendors with an exact, in-stock price.
Testing checks: outside lab · HPLC purity · mass spec identity · batch COA · lab named
- Prime SciencesGLP1-T$104.00$160.00
- OupeptideTirz$110.00
- Nationwide PeptidesGLP-2T Peptide$123.00
- PeptidesSourceGLP-2 (TRZ) 40mg$150.00
- Penguin PeptidesGLP-1 T$156.00
- Licensed PeptidesLP2-T$183.99$204.43
- Orion PeptidesTirzepatide$260.00
- Amino AmigosTIRZ GLP/GIP-TZ$1200.00
| Vendor | Size | Price | Per mg | Availability | Checked | Link |
|---|---|---|---|---|---|---|
| Prime Sciences GLP1-T | 40 mg | $104.00$160.00 | $2.60 | in stock | Aug 22, 2026 | View |
| Oupeptide Tirz | 40 mg | $110.00 | $2.75 | in stock | Sep 12, 2026 | View |
| Nationwide Peptides GLP-2T Peptide | 40 mg | $123.00 | $3.08 | in stock | Sep 12, 2026 | View° |
| PeptidesSource GLP-2 (TRZ) 40mg | 40 mg | $150.00 | $3.75 | in stock | Aug 23, 2026 | View |
| Penguin Peptides GLP-1 T | 40 mg | $156.00 | $3.90 | in stock | Sep 12, 2026 | View |
| Licensed Peptides LP2-T | 40 mg | $183.99$204.43 | $4.60 | in stock | Sep 12, 2026 | View° |
| Orion Peptides Tirzepatide | 40 mg | $260.00 | $6.50 | in stock | Aug 22, 2026 | View |
| Amino Amigos TIRZ GLP/GIP-TZ | 40 mg | $1200.00 | $30.00 | in stock | Sep 4, 2026 | View |
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How to mix a 40 mg vial
Find the column for the amount of water you added to the vial. The number is how far to draw on a U-100 insulin syringe, where 100 units is 1 mL. This is arithmetic on the label, not a recommended dose.
How to read an insulin syringe · How much water to add
| Dose | 1 mL water | 2 mL water | 3 mL water |
|---|---|---|---|
| 2.5 mg | 6.3 units 16.0 doses/vial | 12.5 units 16.0 doses/vial | 18.8 units 16.0 doses/vial |
| 15 mg | 37.5 units 2.7 doses/vial | 75.0 units 2.7 doses/vial | Over 100 units: will not fit one U-100 syringe |
Printed on the vial.
iPeptide Decoding does not recommend a dose. Enter the amount your clinician gave you, or pick a value from the reference range to model.
Same dose, different draw. Pick whichever is easiest to measure.
U-100 insulin syringe (1 mL = 100 units). Draw to the teal line.
Multi-vendor comparison is a Pro feature.
Daily is 7. Twice weekly is 2.