Same product. Comparable prices.
The lowest effective price in stock for a P21 10 mg vial is $75 ($7.50 per mg) at Bulk Peptide Supply, checked Oct 6, 2026, across 4 offers compared. 2 picks with a product COA on file.
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4 of 4 matching offers
Check the observation date beside each price. Prices and stock can change between checks; confirm both at the vendor.
2 picks for this product as of Oct 6, 2026. Picks are up to three of the lowest effective prices among vendors that passed the trust floor, were in stock and checked within 72 hours, and have a COA on file for this product and strength tested within the last 12 months. Fewer than three is normal. Affiliate relationships never affect picks or order. A COA shows the batch it names; it does not prove which lot a vendor ships today.
One-package prices require ordering one sellable package of the selected size. Bulk deals appear in the separate purchase-size view.
Effective prices include only verified automatic promotions or the selected verified coupon scenario. They exclude shipping and tax. Automatic promotions are not stacked with coupons unless the combined terms were verified. Sorting changes this table only; vendor grades and picks are unchanged.
| Vendor and trust | Listed price | Stock record | Price checked | Product |
|---|---|---|---|---|
| Bulk Peptide Supply Grade B+84/100 Passed trust floorPick 1Product COA on fileTested Jun 27, 2026 · MDx BioAnalytical Laboratory · ref COA261893 · purity 99.77% · batch P100130 Lab-authored document · Lab site ↗ · SHA-256 042538f1bf5f…1 older report on file for this product. | $75$7.50 / mgDeal not verified · listed price shown | In stock when checked | Price recorded on this date | Check offer ↗PepGrades earns nothing from this link. |
| Rescue Research Grade B78/100 Passed trust floorPick 2Product COA on fileTested Sep 4, 2026 · Freedom Diagnostics · ref 2609020133 · purity 99.08% · batch RR-P21-2608 Vendor-hosted copy · Lab site ↗ · SHA-256 656359063d39… | $89.99$9 / mgDeal not verified · listed price shown | In stock when checked | Price recorded on this date | Product link unavailable |
| Paramount Peptides Grade B78/100 Passed trust floorLab-verified COATested Sep 10, 2024 · Janoshik Analytical · ref 48384 · purity 99.52% · batch P2124-05-001 Lab portal copy · Lab copy ↗ · SHA-256 b88d4f979fa6… | $127.50$12.75 / mg | In stock when checked | Price recorded on this date | Check offer ↗PepGrades earns nothing from this link. |
| Simple Peptide Grade B79/100 Passed trust floorProduct COA on fileTested Feb 25, 2026 · Freedom Diagnostics · ref 2602240186 · purity 99.505% · batch P21-02232026-J Vendor-hosted copy · Lab site ↗ · SHA-256 e79f43ef303b… | $198$19.80 / mgDeal not verified · listed price shown | In stock when checked | Price recorded on this dateLatest check unavailable; showing last observation (attempted Oct 6, 2026). | Check offer ↗PepGrades earns nothing from this link. |
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P21 10 mg vial
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Uses listed prices checked within 72 hours and recorded in stock. Coupons, shipping and tax are excluded. Confirm at the vendor.