An HPLC chromatographic purity result on a Peptara Labs certificate is a proportion: the main peak against all the peak area one run separated, checked against a release criterion. Here that criterion is not less than 95.0 percent. Peptara Labs records its BPC-157 batch, lot BPC-260408-A, at 99.04 percent on certificate COA-2026-8642. The figure splits up area and names no compound, so identity is on separate lines.
What HPLC purity does Peptara Labs report for its BPC-157 batch?
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Peptara Labs records a chromatographic purity of 99.04 percent for its BPC-157 batch, lot BPC-260408-A, against a not less than 95.0 percent release criterion, on certificate COA-2026-8642. That figure is for one run on that one batch, and names no compound by itself. The certificate is at peptaralabs.io/coa.
01 / What does the purity line measure?
The instrument separates the sample over time, measures the area under each peak, and compares the main peak to the total. Here the result is checked against a release criterion of not less than 95.0 percent. Across the current catalog, measured purity runs from 95.48 to 99.62 percent.
It's arithmetic on peaks. Nothing in it knows what the peaks are made of, which is why identity has its own lines.
What purity range does Peptara Labs publish across its catalog?
Peptara Labs says measured purity across its current catalog runs from 95.48 to 99.62 percent, and its homepage sums that up as a 98.5 percent average. The range tells you more than the average, because it describes the set, not any one vial. Figures are at peptaralabs.io/coa.
02 / What doesn't the percentage tell you?
It splits up area within one run of one batch, and names none of what it's splitting.
Two things follow, and neither is a warning, just scope. The figure is for one run on one batch, so it doesn't carry to another batch. And anything the run didn't separate isn't in the number. High or low, the figure doesn't say which compound made the main peak.
03 / Where did we read it?
From the Titreon Analytical panel at peptaralabs.io/coa, purity line. We always label the release criterion as a release criterion and the catalog range as a catalog range. A percentage without its scope is half a sentence.
Does an HPLC purity figure prove peptide identity?
No. It compares the main peak to the other peaks and gives a proportion, so it splits up area without naming anything. On the certificates we index, identity comes from a retention time match and an LC-MS line, read separately. The panels are at peptaralabs.io/coa.