Knowledge Base
Technical guides for researchers and buyers, written by our laboratory and quality teams.
Guide Peptide Supplier Due Diligence Checklist: What Buyers Should Verify Before Ordering A working due diligence checklist for peptide buyers: business identity, quality documentation, CoA verification, batch traceability, independent testing, and pre-order approval. 2026-10-28 Guide Quality Systems vs. Certifications: What Peptide Buyers Need to Know ISO 9001, GMP, ISO/IEC 17025 accreditation, quality manuals, and certificates of analysis — what each document actually proves when evaluating a peptide supplier. 2026-10-28 Guide Peptide Batch Traceability: How to Connect a Product to Its Quality Records How batch traceability works in peptide procurement: batch numbers, sample identifiers, test documents, labels, and shipping records — and how to check the chain end to end. 2026-10-28 Guide How to Verify Independent Peptide Testing Records Laboratory identity, report authenticity, sample provenance, analytical methods, and the limits of a test report — how to verify independent peptide testing records. 2026-10-28 Guide How to Evaluate a Peptide Supplier: A Practical Guide for B2B Buyers A B2B buyer's framework for evaluating peptide suppliers: business identity, quality systems, batch-specific documentation, traceability, independent testing, and supply continuity. 2026-10-28 Guide How to Audit a Peptide Supplier: A Practical Buyer's Guide Document review, remote audits, on-site audits, findings, corrective actions, and requalification — a practical method for auditing peptide suppliers. 2026-10-28 Guide How to Source Research Peptides from China: A Buyer's Due-Diligence Checklist A practical checklist for laboratories buying research peptides from Chinese suppliers: supplier tiers, COA and spectral verification, quality-system audits, shipping and customs, and red flags. 2026-10-25 Guide Custom Peptide Synthesis: A Step-by-Step Guide from Sequence to Delivered Product How a custom peptide moves from sequence review through solid-phase synthesis, purification, and QC to a lyophilized research product — including modifications, scale, and turnaround. 2026-10-22 Guide Understanding Peptide Purity: HPLC, Mass Spectrometry and How to Read a COA A researcher's guide to how peptide purity is measured by reverse-phase HPLC and mass spectrometry, why purity differs from peptide content, and how to interpret every field of a certificate of analysis. 2026-10-20