For hair loss specifically, this matters because GHK-Cu acts on the same biological pathways involved in follicle health: collagen synthesis, blood vessel formation, wound healing, stem cell signalling, and cell survival
The exact link between carnitine and migraine is unknown
However, some factors, such as chronic illnesses, diet, and current hydration levels, could cause you to retain the fluids for longer
This is the mechanistic reason researchers study it separately from native IGF-1: with less protein-binding interference, the analog remains bioavailable roughly 3x longer, giving it an extended half-life of approximately 2030 hours compared to native IGF-1s 1215 hours
Acta 1214 , 171179 (1994)