Mar 24 • General discussion
Three questions that separate legitimate peptide suppliers from the rest
Been evaluating suppliers for a research project and noticed most fall apart when you ask these three questions:
What's your actual purity standard?
99% pure means nothing without HPLC data and mass spec verification to confirm both purity and identity. Sequence errors slip through constantly.
Is your COA batch-specific or a template?
Generic certificates with swapped dates are surprisingly common. Real documentation includes synthesis batch numbers, testing dates, and technician signatures.
How do you handle cold chain?
Peptides degrade fast without proper storage. If they can't explain temperature maintenance from synthesis to delivery, assume corners were cut.
What's your go-to vetting question?
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Three questions that separate legitimate peptide suppliers from the rest
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