Net peptide content

Last updated August 2026

The actual peptide mass in a vial after accounting for bound water and salt (such as acetate). It can be somewhat lower than the labelled amount, which matters for precise dosing.

A vial labeled 5 mg may contain somewhat less actual peptide, because part of that weight is bound water and counterion salt such as acetate. For most general use the difference is minor, but it matters when a protocol calls for precise dosing, since the true peptide mass is what a dose is measured against. Calculators work from the labeled figure, so anyone needing exactness would substitute the net content from the certificate of analysis.

Educational reference only — not medical advice. Always follow the guidance of a qualified healthcare professional.