Where to buy P21
Live P21 offers captured from the research vendors we actively track, ranked by price per mg. Ordering is independent of any affiliate relationship — see how we rank. For evidence, dosing and community reports, see the full P21 page.
Cheapest
$1.32/mg
Average
$13.16/mg
Vendors
23
Live offers
23
| # | Vendor | Product | Size | Price | Per mg | Ships from | Stock |
|---|---|---|---|---|---|---|---|
| 1 | Top Peptide | P21 50mg | 50mg | $65.99 | $1.32/mg | — | In stock |
| 2 | Raccoon Peptides | P21 10mg | 10mg | $40.13 | $4.01/mg | GB | Not stated |
| 3 | OP Labs | P-21 (PO21) 5mg | 5mg | $30.74 | $6.15/mg | United Kingdom | In stock |
| 4 | Tydes Peptides | P21 (P021) 10mg | 10mg | $75.00 | $7.5/mg | USA | In stock |
| 5 | Bulk Peptide Supply | P21 (P021) 10 mg (10 vials) - Bulk Peptide Supply | 100mg×10 kit | $750.00 | $7.5/mg | unknown | Not stated |
| 6 | Peptides World | P-21-10Mg | 10mg | $79.90 | $7.99/mg | — | In stock |
| 7 | Adaptog Research | p 21 - 50mg | 50mg | $461.94 | $9.23/mg | GB | In stock |
| 8 | Peptides Lab UK | P21 For Lab Research | 10mg | $92.62 | $9.26/mg | United Kingdom | In stock |
| 9 | Rp Peptides | P21 (P021) 5mg : Research Only | 5mg | $48.32 | $9.66/mg | GB | In stock |
| 10 | BehemothLabz | P21 | 10mg | $116.97 | $11.7/mg | USA | In stock |
| 11 | Pure Rawz | P21 (P021) - Peptide / 10mg | 10mg | $117.25 | $11.72/mg | — | In stock |
| 12 | PureHealth Peptides | P-21 (Adamantane) | 10mg | $119.00 | $11.9/mg | — | In stock |
| 13 | Verifiedpeptides | P21 Peptide 10MG (P021) | 10mg | $119.00 | $11.9/mg | — | In stock |
| 14 | Genesis Peptides | P21 | 5mg | $61.00 | $12.2/mg | USA | In stock |
| 15 | Paramount Peptides | P21 / BDNF (Brain-derived neurotrophic factor) (10mg) | 10mg | $127.50 | $12.75/mg | unknown | In stock |
| 16 | Real Peptides | 5mg | 5mg | $80.00 | $16/mg | USA | In stock |
| 17 | Liberty Peptides | P21 (5mg) | 5mg | $99.00 | $19.8/mg | USA | In stock |
| 18 | Alpha Omega Peptide | P21 – 10mg | 10mg | $198.00 | $19.8/mg | USA | In stock |
| 19 | Simple Peptide | P21 – 10mg | 10mg | $198.00 | $19.8/mg | unknown | In stock |
| 20 | Raw Amino | P21 – 5MG | 5mg | $110.00 | $22/mg | USA | In stock |
| 21 | Huaian Hanyou Peptide | P21 (5mg) | 5mg | $112.00 | $22.4/mg | China | In stock |
| 22 | americanpeptides.us | 5 mg | 5mg | $120.00 | $24/mg | United States | In stock |
| 23 | Geneticpeptide | P21 5MG | 5mg | $120.00 | $24/mg | United States | In stock |
Some links are affiliate links. This never affects our rankings or inclusion.
3 out-of-stock offers are not shown. Provisional — the rank reflects offers actually captured from active vendors, not the full peptide catalogue. 95 of 98 tracked peptides have live offers today.Prices are captured from vendor catalogues and can change between sweeps — always confirm on the vendor's page. Research use only; nothing here is medical or purchasing advice.