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Certificates of Analysis

Every PEPSTAR compound is independently tested by third-party laboratories for identity and 99%+ purity. Browse our products below — a current certificate of analysis is available for each.

HPLC Verified

Purity confirmed by High-Performance Liquid Chromatography on every batch.

Mass Spec Confirmed

Identity validated by Mass Spectrometry against the expected molecular weight.

Per-Batch Documentation

Each lot ships with documentation tied to its lot number for full traceability.

Request a certificate

Need a COA before ordering? Email support@pepstar4u.store with the compound and lot number and we'll send the current certificate.

Research-grade peptides, ready to ship

Every batch is third-party tested for 99%+ purity. Order before 3PM EST for same-day dispatch.

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