Semaglutide 20 mg vial
Prices from 11 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 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 $5.50, or $5.50 per mg, across the 11 vendors with an exact, in-stock price.
Testing checks: outside lab · HPLC purity · mass spec identity · batch COA · lab named
- RegenX LabsSemaglutide 20mg$40.00
- Value Research LabsGLP-1 (SM)$47.99$59.99
- Pure Health PeptidesGLP-1 (S)$79.00
- Orion PeptidesSemaglutide$99.00
- Orion PeptidesSemaglutide 20 mg/ Order$99.00
- Penguin PeptidesGLP-1 S$102.00
- OupeptideSema$110.00
- Pura PeptidesSemaglutide$110.00$170.00
- Amino AmigosSEMA GLP1 SG$135.00$145.00
- Geo PeptidesSemaglutide$142.99$179.99
- NuScience PeptidesGLP-1 SM Research Peptide$159.00$349.99
| Vendor | Size | Price | Per mg | Availability | Checked | Link |
|---|---|---|---|---|---|---|
| RegenX Labs Semaglutide 20mg | 20 mg | $40.00 | $2.00 | in stock | Aug 23, 2026 | View |
| Value Research Labs GLP-1 (SM) | 20 mg | $47.99$59.99 | $2.40 | in stock | Aug 24, 2026 | View |
| Pure Health Peptides GLP-1 (S) | 20 mg | $79.00 | $3.95 | in stock | Sep 4, 2026 | View |
| Orion Peptides Semaglutide | 20 mg | $99.00 | $4.95 | in stock | Aug 22, 2026 | View |
| Orion Peptides Semaglutide 20 mg/ Order | 20 mg | $99.00 | $4.95 | in stock | Sep 12, 2026 | View |
| Penguin Peptides GLP-1 S | 20 mg | $102.00 | $5.10 | in stock | Sep 12, 2026 | View |
| Oupeptide Sema | 20 mg | $110.00 | $5.50 | in stock | Sep 12, 2026 | View |
| Pura Peptides Semaglutide | 20 mg | $110.00$170.00 | $5.50 | in stock | Sep 4, 2026 | View |
| Amino Amigos SEMA GLP1 SG | 20 mg | $135.00$145.00 | $6.75 | in stock | Sep 4, 2026 | View |
| Geo Peptides Semaglutide | 20 mg | $142.99$179.99 | $7.15 | in stock | Sep 12, 2026 | View |
| NuScience Peptides GLP-1 SM Research Peptide | 20 mg | $159.00$349.99 | $7.95 | in stock | Sep 5, 2026 | View |
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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 80.0 doses/vial | 2.5 units 80.0 doses/vial | 3.8 units 80.0 doses/vial |
| 2.4 mg | 12.0 units 8.3 doses/vial | 24.0 units 8.3 doses/vial | 36.0 units 8.3 doses/vial |
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.