(Reference Gayatri, Kumar and Kumar28) , participants were not randomly assigned to the intervention and control groups, and seven studies described an allocation concealment method (Reference Hassan, Alalfy and Hassan18,Reference Badawy, El Nashar and El Totongy20Reference Hashim, Anwar and El-Fatah22,Reference Elgindy, El-Huseiny and Mostafa23,Reference Ghomian, Khadem and Moeindarbari5,Reference Maged, Elsawah and Abdelhafez8)
General health status matters for risk tolerance
However, GHK-Cu may provide additional skin and scalp health benefits beyond hair growth
GHK-Cu is a naturally occurring copper-binding tripeptide composed of glycine, histidine, and lysine bound to a copper ion