P21 (P021) is currently in stock at 10 shops, all of which have third-party lab tests on file. Prices range from $49.99 to $198.00 per vial, with a median of $11.45 per mg. Vial sizes range from 5mg to 12mg. Last updated 11 September 2026.
15 shops are known to sell P21 (P021) — 12 with a live listing, 3 evidenced by a lab test in the last year. 13 listings are identified, of which 10 can be compared per milligram.
| Shop | Size | Price | $/mg ↓ | Checked |
|---|---|---|---|---|
| evolvebiopep.comThird-party lab tests on filelisted as P21 12mg | 12mg | $49.99 | $4.17/mg | 19h ago |
| bulkpeptidesupplyThird-party lab tests on file | 10mg | $75.00 | $7.50/mg | 19h ago |
| Rescue Research USA PeptidesThird-party lab tests on filelisted as P21 10mg | 10mg | $89.99 | $9.00/mg | 18h ago |
| atomiklabz.comThird-party lab tests on filelisted as P-21 – 12mg | 12mg | $119.00 | $9.92/mg | 19h ago |
| protidehealth.comThird-party lab tests on filelisted as P21 10mg | 10mg | $110.00 | $11.00/mg | 18h ago |
| verifiedpeptides.comThird-party lab tests on filelisted as P21 Peptide 10MG (P021) | 10mg | $119.00 | $11.90/mg | 19h ago |
| simplepeptide.comThird-party lab tests on filelisted as P21 – 10mg | 10mg | $198.00 | $19.80/mg | 19h ago |
| libertypeptides.comThird-party lab tests on filelisted as P21 (5mg) | 5mg | $99.00 | $19.80/mg | 19h ago |
| corepeptides.comThird-party lab tests on filelisted as P21 – 5MG | 5mg | $116.00 | $23.20/mg | 19h ago |
| americanpeptides.usThird-party lab tests on filelisted as P-21 | 5mg | $120.00 | $24.00/mg | 18h ago |
| tydes.isThird-party lab tests on fileOut of stock | 10mg | $74.99 | $7.50/mg | 19h ago |
| ruo.bioThird-party lab tests on filelisted as P-21 5mgOut of stock | 5mg | $38.00 | $7.60/mg | 19h ago |
Out-of-stock rows are excluded from the lowest, the median and the shop count
Read the P21 (P021) guide
Lab-test data, purity averages and what the evidence actually shows.