Prostamax is currently listed by 10 tracked shops, all of which have third-party lab tests on file. Prices range from $50.00 to $79.99 per vial, with a median of $2.75 per mg. Vial sizes range from 20mg to 25mg. Last updated 28 July 2026.
| Shop | Size | Price | $/mg ↓ | Checked |
|---|---|---|---|---|
| peptidecrafters.comThird-party lab tests on file | 25mg | $55.00 | $2.20/mg | 2h ago |
| Humatide PeptidesThird-party lab tests on file | 20mg | $50.00 | $2.50/mg | 3h ago |
| modernaminosThird-party lab tests on file | 20mg | $54.00 | $2.70/mg | 1h ago |
| aminousa.comThird-party lab tests on file | 20mg | $55.00 | $2.75/mg | 3h ago |
| verifiedpeptides.comThird-party lab tests on file | 20mg | $55.00 | $2.75/mg | 2h ago |
| libertypeptides.comThird-party lab tests on file | 20mg | $55.00 | $2.75/mg | 2h ago |
| corepeptides.comThird-party lab tests on file | 20mg | $63.00 | $3.15/mg | 1h ago |
| purapeptides.comThird-party lab tests on file | 20mg | $65.00 | $3.25/mg | 4h ago |
| biolongevitylabs.comThird-party lab tests on file | 20mg | $79.97 | $4.00/mg | 2h ago |
| buyironpeptides.comThird-party lab tests on file | 20mg | $79.99 | $4.00/mg | 3h ago |
| vandl-labs.comThird-party lab tests on fileOut of stock | 20mg | $54.99 | $2.75/mg | 3h ago |
Read the Prostamax guide
Lab-test data, purity averages and what the evidence actually shows.