Procurement comparison
Core Peptides Legit Review 2026: Comparison
HPLC Purity Verification Published per batch, ≥98% stated ≥99% with batch release testing ≥95% acceptable for research Meets research standard; slightly below pharma threshold Third-Party Testing Frequency Selective (some batches verified by Janoshik) Every ba
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- HPLC Purity Verification
- Published per batch, ≥98% stated
- ≥99% with batch release testing
- ≥95% acceptable for research
- Meets research standard; slightly below pharma threshold
- Third-Party Testing Frequency
- Selective (some batches verified by Janoshik)
- Every batch via independent lab
- Periodic spot-checks common
- Above baseline but not continuous verification
- Endotoxin Quantification
- Not published on standard CoA
- <5 EU/mg via LAL assay required
- Often omitted in research-grade
- Critical gap for in vivo studies
- Reconstitution Stability Data
- Not provided per compound
- Mandatory with expiration dating
- Rarely specified
- Researchers must reference literature independently
- Batch Traceability
- Lot numbers on vials
- Full chain-of-custody documentation
- Lot numbers standard
- Adequate for research tracking
- Sterility Testing
- Not disclosed
- USP <71> sterility test required
- Not standard for research peptides
- Assumed but not verified