Compare P-21 prices from $74 across 12 indexed vendors, with per-mg pricing and third-party COA verification.
| Vendor | Dose | Price | Per mg | Lab COA |
|---|---|---|---|---|
| Guangsheng (Lyla) | 5 mg | $213 | $42.6/mg | — |
| Xjun Peptide | 5 mg | $250 | $50/mg | — |
| VendorPep | 5 mg | $267.8 | $53.56/mg | — |
| TP Peptide | 5 mg | $290 | $58/mg | — |
| AD Peptide | 5 mg | $290 | $58/mg | — |
| TR Peptide | 5 mg | $296 | $59.2/mg | — |
| GHK Peptide Factory | 5 mg | $296 | $59.2/mg | — |
| RL Peptide | 5 mg | $300 | $60/mg | — |
| X'ian-Laibo-Biotech | 10 mg | $74 | $7.4/mg | — |
| QSC (Tracy) | 10 mg | $150 | $15/mg | — |
| Uther | 10 mg | $240 | $24/mg | — |
| AMSpeps | 10 mg | $286 | $28.6/mg | — |
| VendorPep | 10 mg | $434.2 | $43.42/mg | — |
| AD Peptide | 10 mg | $545 | $54.5/mg | — |
| TR Peptide | 10 mg | $550 | $55/mg | — |
| TP Peptide | 10 mg | $550 | $55/mg | — |
| GHK Peptide Factory | 10 mg | $550 | $55/mg | — |