P21 (P021) is currently listed by 6 tracked shops, all of which have third-party lab tests on file. Prices range from $74.99 to $119.00 per vial, with a median of $11.45 per mg. Vial sizes range from 5mg to 10mg. Last updated 28 July 2026.
| Shop | Size | Price | $/mg ↓ | Checked |
|---|---|---|---|---|
| tydes.isThird-party lab tests on file | 10mg | $74.99 | $7.50/mg | 3h ago |
| bulkpeptidesupplyThird-party lab tests on file | 10mg | $75.00 | $7.50/mg | 2h ago |
| protidehealth.comThird-party lab tests on file | 10mg | $110.00 | $11.00/mg | 3h ago |
| verifiedpeptides.comThird-party lab tests on file | 10mg | $119.00 | $11.90/mg | 2h ago |
| libertypeptides.comThird-party lab tests on file | 5mg | $99.00 | $19.80/mg | 2h ago |
| corepeptides.comThird-party lab tests on file | 5mg | $116.00 | $23.20/mg | 1h ago |
| skyepeptides.comThird-party lab tests on fileOut of stock | 10mg | $79.00 | $7.90/mg | 4h ago |
| modernaminosThird-party lab tests on fileOut of stock | 10mg | $98.00 | $9.80/mg | 1h ago |
Read the P21 (P021) guide
Lab-test data, purity averages and what the evidence actually shows.