is 4.5 mg ghk-cu too much daily dose Peptide Dosage Chart: Complete Reference Tables for Every Protocol GHK-Cu Dosing, Need to Know
Description
Other short-lived peptides require more frequent dosing for consistent impact
Release 297 , 7178 (2019)

It depends on your dose and concentration

Activation energies are continuously tunable across the range of 22 to 30 kcal/mol, with a resolution as fine as 0.51.5 kcal/mol

GHK-Cu is a copper-binding tripeptide (Gly-His-Lys complexed with copper), supplied strictly for laboratory research
Looking forward to ordering again