is 4.5 mg ghk-cu too much daily dose Peptide Dosage Chart: Complete Reference Tables for Every Protocol GHK-Cu Peptide: Benefits for Tissue
Description
That means you have to get it from food or supplements

Possible Involvement of Nitric Oxide Modulatory Mechanisms in the Neuroprotective Effect of Centella asiatica Against Sleep Deprivation Induced Anxiety Like Behaviour, Oxidative Damage and Neuroinflammation
M.DorfM

An injection site can feel painful or uncomfortable, or you may feel mild nausea or dizziness for a short period of time

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