What it is
HPLC separates compounds under a particular method. A peak-area percentage describes the detected signal assigned to a component; it is not the percentage of the vial that is safe.
What the evidence tells us
Water, counterions and some contaminants may not be captured by the same measurement. Identity needs complementary analysis, and net peptide content is a separate quantity.
What remains uncertain
Ask for the chromatogram, method, identity data, quantity, lot and separate contaminant panels. A high number does not demonstrate sterility or the absence of every harmful impurity.
Check the population, product, route, comparator and outcome. A laboratory mechanism is not a proven health benefit, and a supplier’s certificate is not a clinical study.
Follow the evidence
Sources accessed 10 September 2026. Vendor claims and vendor-hosted reports are identified as such.