Optides
US supplier with batch-specific third-party COAs, 99%+ HPLC purity, and same-day domestic shipping.
4.8(56)
97.00/100
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A multi-vendor list graded on the same public criteria. Some links are affiliate links, which never change a score.
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Helix Labs
Research-focused lab supplier with independent analytical verification and per-batch Certificates of Analysis.
4.9(19)
95.00/100
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Zenith Biopeptides
High-volume catalog with per-lot HPLC and MS documentation from accredited third-party laboratories.
4.8(16)
93.00/100
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Apex Peptides
US-based supplier linking each vial to its batch COA from independent third-party laboratories.
3.5(4)
92.00/100
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Lumin Peptides
Research-grade catalog with independent COA testing on every batch prior to release.
2.8(8)
90.00/100
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BioLongevity Labs
US manufacturer with triple third-party testing and a public COA archive for research peptides and bioregulators.
3.3(8)
88.00/100
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Core Peptides
US supplier with batch-specific Janoshik COAs, HPLC chromatograms, and MS identity on published lab reports.
3.2(6)
90.00/100
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Clarion Peptides
Lot-traceable peptides with Janoshik-verified HPLC and mass-spec COAs on a public lot ledger.
3.1(7)
90.00/100
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Verified Peptides
Long-running supplier with 300+ published third-party lab reports and batch-specific HPLC verification.
3.3(6)
83.00/100
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Luxara Labs
US research supplier with COA education resources, lab-result pages, and tracked domestic fulfillment.
3.3(7)
83.00/100
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