Lab Reports & Certificates of Analysis

The labeled weight (e.g. 10mg) is the nominal fill amount. The net peptide content reported by the lab is the mass of pure peptide only — after accounting for residual moisture and counterion salts (typically TFA or acetate) that bind to the peptide during synthesis and lyophilization.

Depending on the peptide, net content may read higher or lower than 10mg:

• Higher than labeled (e.g. BPC-157 at 12.78mg, Semaglutide at 12.32mg) — the peptide retains more water weight during lyophilization, so the total vial mass is higher but the net pure peptide reads above nominal.
• Lower than labeled (e.g. Tirzepatide at 9.07mg, Ipamorelin at 8.86mg) — larger or more complex peptides carry heavier counterion salts relative to their size, so the net peptide fraction of the total vial mass reads slightly under 10mg.

In both cases the compound is present and accounted for. The number that confirms quality is the HPLC purity % — all of our lots test at ≥99%, meaning what's in the vial is exactly what it's supposed to be.

The peptide purity analysis reported here was conducted using LCMS/MS under standard laboratory conditions. This analysis is intended for informational purposes only and is specific to the sample(s) provided. The peptides tested are intended for research use only and are not approved for human or veterinary use, diagnostic, therapeutic, or clinical applications.