ghk-cu present in human plasma may Prevent Oxidative Stress Skin by Regulating Copper and Modifying Expression of Numerous Antioxidant Genes GHK-Cu: The Copper Peptide for
Description
Modifier -50 is not appropriate in this case

All I can say is that I'm basically a case of a doctor being indifferent by recommending a patient take vitamin b12 tablets in addition to b12 injections...which allowed a severe reaction to take place that is ongoing

Athletic Improvement Sports doctors and nutritionists are singing the praises of IV Therapy for fueling the body and speeding up recovery

PMID: 41880199 Zeng K et al

J Hepatol
