CURATED VENDOR PROFILE
Endura Peptides
A U.S.-operated research storefront with openly listed single-vial and multipack prices and per-product Freedom Diagnostics certificates that resolve at the laboratory’s public lookup under the Endura client name.
Same formula for every vendor: verifiable testing evidence forms the backbone; third-party reviews adjust it within a bounded range. How scoring works →
Score breakdown
Rank Composition — the terms below are the published receipt for this score. Full formula on the methodology page.
- Verified-evidence backbone
- 8.66
- Third-party reviews (bounded)
- +0.04
- Curated review bonus
- +0.15
Endura Peptides sells research-only singles and blends with prices on the product pages, including house codes GLP-2T for tirzepatide and GLP-3R for retatrutide, plus KLOW, BPC/TB, and Ipamorelin/CJC blends. Each catalog peptide links downloadable Freedom Diagnostics certificates; PeptideBenchmark confirms printed Search Codes against Freedom’s public index when the client field names Endura. Quantity multipacks and bacteriostatic water stay outside the retail single-vial board.
Readers who want a compact U.S.-shipped catalog with house GLP codes mapped on the pricing board and Freedom Diagnostics certificates that can be checked at the lab from each product page.
GLP-2T and GLP-3R are house codes for tirzepatide and retatrutide. A first-order email-popup 20% offer is vendor-stated marketing and is not treated as a standing public cart rule in default rankings. Quantity 3/5/10 packs and bacteriostatic water stay off the peptide $/mg board.
Operated in the United States; support@endurapeptides.com; phone 301-241-7211; Mon–Fri 9am–5pm EST. Same-day ship cutoff 1:00 PM PST on business days; Standard $10 / Priority $15; U.S. orders over $250 ship free via Priority. No public street address on contact or about pages.
Checked August 19, 2026Public product-page Freedom Diagnostics COAs with provider verification
Product pages host Freedom Diagnostics Certificate-of-Analysis PDFs whose Search Codes resolve at the laboratory’s public verification surface under the Endura client name. Reports typically support identity, HPLC purity, and net content for the named sample. A matched certificate documents the tested sample and does not endorse every vial or unlisted safety panel.
10 public certificate examples
Representative product pages showing how this catalog exposes report or verification paths. Examples, not proof for every current lot.
Assayed content is not fill accuracy. Laboratories report net peptide content, and peptides ship as salts, so an honestly filled vial commonly assays below its gross label — a figure under 100% is not evidence of a short vial. These numbers are also not comparable between vendors: they exist only where a laboratory reports net content, so they partly reflect which laboratory a vendor uses.
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Observed from public domain records and the vendor's own site on Aug 27, 2026. Identity facts are shown for context and do not affect scores.