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They are not medicines and are not intended to treat, diagnose, mitigate, prevent, or cure diseases
The state of hepatic GH resistance in anorexia nervosa is further corroborated by the lack of increase in IGF-I following administration of supraphysiological doses of exogenous GH in women with anorexia nervosa (61), and only refeeding appears to able to restore IGF-I levels (56, 59, 62)
The cysteinylglycine dipeptide can also be taken up by cells in a process mediated by the peptide transporter 2, before being degraded in the cytoplasm by unspecific dipeptidases, 96 although the circumstances under which this occurs remain undetermined

Comparative Peptide Research Because GHK-Cu is a defined synthetic copper-peptide complex, it is frequently included in comparative peptide research evaluating: Peptide structural stability Molecular interaction modeling Peptide solubility characteristics Comparative peptide synthesis behavior Analytical performance of metal-peptide complexes Storage & Handling Guidelines Recommended Storage Conditions Store refrigerated at 28C unless otherwise specified Protect peptide compounds from light and moisture Keep containers sealed until laboratory use Avoid repeated freeze-thaw cycles after reconstitution Laboratory Handling Best Practices GHK-Cu peptide should be handled using appropriate laboratory protocols including sterile handling techniques and controlled environmental conditions to maintain experimental consistency and sample integrity
doi: 10.1016/J.PCL.2011.02.012 175 BeslerMSteinhartHPaschkeA