glutathione 1h-nmr assignment Direct quantification of cysteine and by 1H NMR based on β-cyclodextrin modified silver nanoparticles 1H, 13C, and 15N resonance
Description
Tanasescu et al., 2013)

GHK-Cu is a copper peptide a small protein fragment naturally found in human skin and plasma
Orhan IE, Mesaik MA, Jabeen A, Kan Y

Identification and dynamics of a heparin-binding site in hepatocyte growth factor

However, when the investigational drug presents a higher level of risk for example in certain oncology settings, where the compound may be too toxic for healthy subjects the study may involve patients instead

What if my side effects are too strong at the new dose
