what is ipamorelin: Frequently asked questions

This is a marketing tactic, not a chemical distinction. Request COAs for both products and compare the peptide sequence, molecular weight, and counterion. In most cases, both will list acetate as the counterion. The vendor is selling the same compound under two names. If one product lists trifluoroacetate instead of acetate, the peptide is still ipamorelin, but the trifluoroacetate salt is slightly heavier, reducing total peptide content per vial by 2–5%.

This is expected. The label lists gross weight (peptide + counterion + residual moisture), while the COA lists net peptide content after subtracting the acetate salt. A 5mg vial of ipamorelin acetate typically contains 4.0–4.3mg of active peptide, with the remainder being acetate and trace water retained during lyophilisation. This isn't underdosing. It's accurate accounting. Calculate dosing based on total peptide content from the COA, not the vial label.