What do you actually want to see on a peptide COA?

There’s a big difference between seeing “99%+ purity” on a product page and having enough analytical information to evaluate a sample properly.

If you could design the ideal COA/testing package, what would you want included?

HPLC chromatogram?
Identity testing?
Mass spec data?
Net-content testing?
Heavy metals?
Endotoxin/sterility where relevant?
Lot-specific testing?
Direct verification through the testing lab?

Curious what people here consider essential versus nice to have.

Full disclosure: r/PeptideResearchHQ was founded by Rextide Research. One reason I’m asking is that I want this community to discuss what good testing and transparency should actually look like—not just repeat marketing claims.