Practical guides on documentation, handling and supplier qualification — written for the people who have to sign off on a purchase order, not for search engines.
What “≥99% purity” actually measures, how to read a chromatogram, why net peptide content decides your assay, and the three fields most certificates omit.
Read the guide →The seven documents, what each proves, how each one gets faked, and a 30-minute workflow that produces a clear pass or fail.
Read the guide →Why the same sequence costs many times more per milligram at 1 mg than at 1 g, where the purity price steps come from, and how to write an RFQ that produces comparable quotes.
Read the guide →Read the theory, then read twenty-four actual reports from two US laboratories — including the net content values that did not match the label.
Open the reports →Lyophilised peptide storage and handling, and the difference between RUO and cosmetic-grade documentation — publishing next.
Batch COA, SDS and TDS for the material you are evaluating — returned within one business day.
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