Semaglutide 20 mg vial price
Semaglutide 20 mg vials are listed by 45 vendors. They typically run $44.99 to $183.59, with a median of $94.00, across the 40 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 20 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 $94.00 a vial, or $4.83 per mg, across the 40 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
- Reta One LabsRO-1SM 20mg$39.00
- RegenX LabsSemaglutide 20mg$40.00
- Value Research LabsGLP-1 (SM)$41.99$59.99
- Value Research LabsVRL-1 (SM) (20 MG)$41.99$59.99
- Modern ResearchGLP1-S (20mg)$44.99
- Welli LabsWL1-SM 20mg (Single)$44.99
- Northline LabsNL-SM-1 - Premium Research Peptide (20mg)$58.49$64.99
- PRPEPSGLP-1 SM 20MG$59.50
- Vertex LabsSema GLP-1 20mg$79.00
- Peak Lab PeptidesGLP-1 S (20mg)$79.32$109.40
- Nationwide PeptidesGLP-1S Peptide (20mg)$90.00
- Royal PeptidesSemaglutide Single Vials (20mg)$92.00$115.00
- Ignite PeptidesIP1S-20mg$170.00
- Pure Bio LabsGLP-1 VIAL (20MG)$233.99
- Midwest PeptideGLP-1 SM$49.99starting atSale price, list price not shown
| Vendor | Size | Price | Per mg | Availability | Checked | Link |
|---|---|---|---|---|---|---|
| Reta One Labs RO-1SM 20mg | 20 mg | $39.00 | $1.95 | in stock | Oct 20, 2026 | View |
| RegenX Labs Semaglutide 20mg | 20 mg | $40.00 | $2.00 | in stock | Nov 1, 2026 | View |
| Value Research Labs GLP-1 (SM) | 20 mg | $41.99$59.99 | $2.10 | in stock | Oct 31, 2026 | View |
| Value Research Labs VRL-1 (SM) (20 MG) | 20 mg | $41.99$59.99 | $2.10 | in stock | Oct 31, 2026 | View |
| Modern Research GLP1-S (20mg) | 20 mg | $44.99 | $2.25 | in stock | Oct 31, 2026 | View |
| Welli Labs WL1-SM 20mg (Single) | 20 mg | $44.99 | $2.25 | in stock | Oct 31, 2026 | View |
| Northline Labs NL-SM-1 - Premium Research Peptide (20mg) | 20 mg | $58.49$64.99 | $2.92 | in stock | Oct 31, 2026 | View |
| PRPEPS GLP-1 SM 20MG | 20 mg | $59.50 | $2.98 | in stock | Oct 31, 2026 | View°code peptidedecoding |
| Vertex Labs Sema GLP-1 20mg | 20 mg | $79.00 | $3.95 | in stock | Oct 31, 2026 | View°code PEPTIDEDECODING |
| Peak Lab Peptides GLP-1 S (20mg) | 20 mg | $79.32$109.40 | $3.97 | in stock | Nov 1, 2026 | View° |
| Nationwide Peptides GLP-1S Peptide (20mg) | 20 mg | $90.00 | $4.50 | in stock | Oct 31, 2026 | View° |
| Royal Peptides Semaglutide Single Vials (20mg) | 20 mg | $92.00$115.00 | $4.60 | in stock | Oct 31, 2026 | View° |
| Ignite Peptides IP1S-20mg | 20 mg | $170.00 | $8.50 | out of stock | Oct 31, 2026 | View° |
| Pure Bio Labs GLP-1 VIAL (20MG) | 20 mg | $233.99 | $11.70 | in stock | Oct 31, 2026 | View° |
| Midwest Peptide GLP-1 SM | 20 mg | $49.99starting atSale price, list price not shown | out of stock | Oct 31, 2026 | View°code PEPTIDEDECODING |
We earn from these links. It never changes a price or a position here.
- Ignite Peptides: Stock not shown, left out of the range
- Midwest Peptide: Stock not shown, left out of the range
- Eon Peptides: "From" price, left out of the range
- Peptide Warehouse: "From" price, left out of the range
- Vici Peptides: "From" price, left out of the range
Where the price has been
Market median at 20 mg: $5.03 per mg on Aug 26, 2026, $4.83 on Nov 5, 2026, 40 stores comparable today.
| Date | Median per mg | Low per mg | Stores |
|---|---|---|---|
| Nov 5, 2026 | $4.83 | $1.95 | 40 |
| Oct 31, 2026 | $4.83 | $1.95 | 40 |
| Oct 24, 2026 | $4.97 | $1.95 | 40 |
| Oct 22, 2026 | $4.97 | $1.95 | 40 |
| Oct 21, 2026 | $4.97 | $1.95 | 40 |
| Oct 20, 2026 | $4.95 | $1.95 | 37 |
| Oct 19, 2026 | $5.00 | $2.00 | 33 |
| Oct 18, 2026 | $4.95 | $2.00 | 19 |
How to mix a 20 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 |
|---|---|---|---|
| 0.25 mg | 1.3 units · too small to measure reliably 80 doses/vial | 2.5 units 80 doses/vial | 3.8 units 80 doses/vial |
| 2.4 mg | 12.0 units 8 doses/vial · 0.80 mg left over | 24.0 units 8 doses/vial · 0.80 mg left over | 36.0 units 8 doses/vial · 0.80 mg left over |
Calculating for
Semaglutide
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.
Multi-vendor comparison is a Pro feature.
Daily is 7. Twice weekly is 2.
Your plan for Semaglutide
Nothing left over