P21 supplier listings
11 US suppliers · 27 recorded listings · USD
Listings below are organised by supplier and strength, not a cheapest-price ranking. A shared name does not verify equivalent ingredients, forms or blend ratios.
Open interactive comparison ↗Compare P21 vial strengths
Recorded strengths: 5 mg, 10 mg, 12 mg. 22 source observations were checked within the last 24 hours. 11 listings have no confirmed mass; their price per mg stays blank.
No multi-supplier formulation has enough current approved checks for a lowest-price comparison yet. The source table below remains available for inspection.
| Supplier & original label | Vial size | Listed price | Price per mg | Actual price check |
|---|---|---|---|---|
| Alpha Omega Peptide ↗P21 – 10mg | 10 mg | $198.00 USD | $19.80 USD/mg | 31 Oct 2026, 06:28 am AWSTOverdue · recheck source |
| Alpha Omega Peptide ↗P21 – 10mg | $198.00 USD | 4 Nov 2026, 06:26 am AWSTWithin 24 hours | ||
| Atomik Labz Peptides ↗P-21 – 12mg | 12 mg | $119.00 USD | $9.92 USD/mg | 31 Oct 2026, 06:26 am AWSTOverdue · recheck source |
| Atomik Labz Peptides ↗P-21 – 12mg | $119.00 USD | 4 Nov 2026, 06:24 am AWSTWithin 24 hours | ||
| Bulk Peptide Supply ↗P21 (P021) 10 mg | 10 mg | $75.00 USD | $7.50 USD/mg | 4 Nov 2026, 06:19 am AWSTWithin 24 hours |
| Core Peptides ↗P21 – 5MG | 5 mg | $116.00 USD | $23.20 USD/mg | 31 Oct 2026, 06:11 am AWSTOverdue · recheck source |
| Core Peptides ↗P21 – 5MG | $116.00 USD | 4 Nov 2026, 06:09 am AWSTWithin 24 hours | ||
| Modern Aminos ↗P-21 (P021) | $98.00 USD | 4 Nov 2026, 06:15 am AWSTWithin 24 hours | ||
| Paramount Peptides ↗P21 / BDNF (Brain-derived neurotrophic factor) (10mg) | 10 mg | $127.50 USD | $12.75 USD/mg | 4 Nov 2026, 06:17 am AWSTWithin 24 hours |
| Peptide Warehouse ↗P21 | $87.99 USD | 1 Nov 2026, 12:34 pm AWSTOverdue · recheck source | ||
| Peptide Warehouse ↗P21 | $87.99 USD | 4 Nov 2026, 06:16 am AWSTWithin 24 hours | ||
| Protide Health ↗P21 10mg | 10 mg | $110.00 USD | $11.00 USD/mg | 4 Nov 2026, 06:10 am AWSTWithin 24 hours |
| PrymaLab ↗P21 (P021) 5mg | 5 mg | $89.99 USD | $18.00 USD/mg | 4 Nov 2026, 07:10 am AWSTWithin 24 hours |
| PrymaLab ↗P21 (P021) 5mg · Vial · One-time Purchase | 5 mg | $89.99 USD | $18.00 USD/mg | 4 Nov 2026, 07:10 am AWSTWithin 24 hours |
| PrymaLab ↗P21 (P021) 5mg · Vial · Subscribe & Save 15% | 5 mg | $75.99 USD | $15.20 USD/mg | 4 Nov 2026, 07:10 am AWSTWithin 24 hours |
| PrymaLab ↗P21 (P021) 10mg | 10 mg | $119.99 USD | $12.00 USD/mg | 4 Nov 2026, 07:10 am AWSTWithin 24 hours |
| PrymaLab ↗P21 (P021) 10mg · Vial · One-time Purchase | 10 mg | $119.99 USD | $12.00 USD/mg | 4 Nov 2026, 07:10 am AWSTWithin 24 hours |
| PrymaLab ↗P21 (P021) 10mg · Vial · Subscribe & Save 15% | 10 mg | $101.99 USD | $10.20 USD/mg | 4 Nov 2026, 07:10 am AWSTWithin 24 hours |
| PrymaLab ↗P-21 analysis | $360.00 USD | 4 Nov 2026, 07:10 am AWSTWithin 24 hours | ||
| PrymaLab ↗P21 (P021) 10mg | $101.99 USD | 4 Nov 2026, 07:10 am AWSTWithin 24 hours | ||
| PrymaLab ↗P21 (P021) 5mg | $75.99 USD | 4 Nov 2026, 07:10 am AWSTWithin 24 hours | ||
| PSPeptides ↗P21 (1 Vial) · 10MG | 10 mg | $89.99 USD | $9.00 USD/mg | 4 Nov 2026, 06:10 am AWSTWithin 24 hours |
| PSPeptides ↗P21 (1 Vial) - 10MG | 10 mg | $89.99 USD | $9.00 USD/mg | 4 Nov 2026, 06:10 am AWSTWithin 24 hours |
| PSPeptides ↗P21 (1 Vial) | $89.99 USD | 4 Nov 2026, 06:10 am AWSTWithin 24 hours | ||
| SwissChems ↗P21 5mg - 1 vial | 5 mg | $114.95 USD | $22.99 USD/mg | 4 Nov 2026, 06:10 am AWSTWithin 24 hours |
| SwissChems ↗P21 5mg | 5 mg | $114.95 USD | 31 Oct 2026, 06:12 am AWSTOverdue · recheck source | |
| SwissChems ↗P21 5mg | $114.95 USD | 4 Nov 2026, 06:10 am AWSTWithin 24 hours |
What to check for P21
Check the exact compound identity, supplier-stated vial mass and dosage form. Similar product names do not establish equivalent formulations.
How recent are these prices?
The latest source observation is 4 Nov 2026, 07:10 am AWST. Each offer keeps its own check time in the source table. An overdue price is not treated as current simply because this page has loaded.
Does the listed price include delivery?
These are supplier-listed research-material prices. Visit the exact product listing to confirm availability and checkout charges; supplier inclusion does not verify product quality.
How to read these listings
Vial strengths are kept as individual offers. The listed price is the source observation, not a promise of current stock or a checkout total. Inspect the original product page for identity, availability, delivery and any conditions. Unverified formulations remain outside shared price rankings.
Comparison methodology · Price per mg explained · All US compound pages