Peptide Decoding

Tirzepatide 120 mg vial price

Tirzepatide 120 mg vials are listed by 8 vendors. Prices run from $199.00 to $460.00, with a median of $299.00, across the 7 showing an exact in-stock price. Last read Nov 1, 2026. This page also shows 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 behavior 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 120 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 $299.00 a vial, or $2.49 per mg, across the 7 vendors with an exact, in-stock price.

Median unchanged from Oct 31, 2026.

Testing checks: outside lab · HPLC purity · mass spec identity · batch COA · lab named

Sort by
  • $161.00Starting price, larger sizes cost more · Sale price, list price not shown
    120 mg$1.34 / mgout of stockOct 10, 2026View°code PEPTIDEDECODING saves 15%
  • Planet Peptide
    Tirzepatide-RUO 120 MG
    $199.00$299.00
    120 mg$1.66 / mgin stockOct 21, 2026View
  • Pura Peptides
    Tirzepatide
    $249.99$400.00
    120 mg$2.08 / mgin stockNov 1, 2026View
  • Modified Aminos
    MA-2TZ 120mg (Single Vial)
    $279.99
    120 mg$2.33 / mgin stockOct 31, 2026View
  • Atomik Labz
    Peptide 2 (T) (120mg, Quantity: Single Peptide)
    $299.00
    120 mg$2.49 / mgin stockOct 31, 2026View
  • $329.00
    120 mg$2.74 / mgin stockOct 31, 2026View
  • Northline Labs
    Tirz GLP-2
    $395.99
    120 mg$3.30 / mgin stockOct 31, 2026View
  • SJ Peptides
    TZ-GLP2 120mg (SINGLE)
    $460.00
    120 mg$3.83 / mgin stockOct 31, 2026View

We earn from these links. It never changes a price or a position here.

  • Ascend Science: Stock not shown, left out of the range

Where the price has been

Market median at 120 mg: $2.46 per mg on Aug 26, 2026, $2.49 on Nov 5, 2026, 7 stores comparable today.

$2.74$1.34Aug 26, 2026Nov 5, 2026
Market median per mgLowest per mg
DateMedian per mgLow per mgStores
Nov 5, 2026$2.49$1.667
Oct 31, 2026$2.49$1.667
Oct 24, 2026$2.49$1.667
Oct 22, 2026$2.49$1.667
Oct 21, 2026$2.49$1.667
Oct 20, 2026$2.62$2.176
Oct 19, 2026$2.74$2.175
Oct 18, 2026$2.74$2.173

How to mix a 120 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

Dose1 mL water2 mL water3 mL water
2.5 mg2.1 units
48 doses/vial
4.2 units
48 doses/vial
6.3 units
48 doses/vial
15 mg12.5 units
8 doses/vial
25.0 units
8 doses/vial
37.5 units
8 doses/vial
FDA labelWeeklyhalf-life About 5 days

Calculating for

Tirzepatide

Printed on the vial.

Commonly referenced range: 2.5 up to 15 mg per week (start low, increase slowly)FDA label

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.

mL waterCustom amount. Enter any volume, e.g. 10 mL.—units draw
YOUR DRAW4.2 / 100 units

Multi-vendor comparison is a Pro feature.

Daily is 7. Twice weekly is 2.

Decoded

Your plan for Tirzepatide

Dose
2.5 mg
Syringe draw
4.2units
Concentration
60mg/mL
Doses per vial
48

Nothing left over

Cost per dose
$1.23
Monthly cost
$5.34
Current supply lasts
11months
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