u/joaquin_ivaturi

Inter-lab variance on this kind of assay is routinely 1–2 points. Different column, different gradient, different integration.

the 12 month rule change is in effect

the moderation decision is logged

Strongly agree. The dispute resolved and the record stayed updated.

Cosigning. The batch number is load-bearing information.

PDF metadata is checkable in fifteen seconds

The COA I was holding said 96.8% area and I thought it was trash. Turns out the method was solid and the impurity profile was clean.

Water content was 3.8%, acetate was 6.2%, purity was 99%, but net peptide was only 90% of the label weight. Perfectly honest, just chemistry.

do not generalise from tirzepatide

Adding to this: hepatic fat is doing more work than the comment implies.

Edit to your parent would help — the concentration you quoted assumes one scenario and you have written another above it.

That is net peptide content, not purity. Different number, different meaning.

MASH claims need the trial and the biopsy endpoint

Yes, exactly this, and it is the bit that took me 75 weeks to accept.

do not generalise from tirzepatide

Strongly agree. The dispute resolved and the record stayed updated.

redact your own name, not the vendor's batch details

This is the correct framing. The COA structure matters as much as the number.

Strongly agree. The safety story is separate.

the batch number appearing across three vendors is a red flag

Not to be pedantic but area percent and related substances are being used interchangeably and they are not interchangeable in real life.

Cosigning. The batch number is load-bearing information.