So, let's clear the air and provide the definitive, science-backed answer
E.El-ShafeyA.AbdelhieeE
Wang X, Zhan E, Lu G, et al
Neurology 51 , 15621566 (1998)
LC-MS molecular weight confirmation: Mass spectrometry should confirm that the molecular weight matches the expected tripeptide-copper complex structure, approximately 340 Daltons for the GHK tripeptide, with copper binding verified
Simply put, peptides are short chains of amino acidsthe building blocks of proteinthat regulate the bodys healing, immune function, muscle growth, and markers such as blood pressure, insulin, and more