"The Effect of Tripeptide-Copper Complex on Human Hair Growth in Vitro." Arch Pharm Res
clinical work used GHK-Cu in the ~0.1% topical range
The Honest Answer At normal therapeutic doses, supervised by a qualified doctor, with branded pharmaceutical-grade vials, the safety profile is reasonable
Research-grade GHK-Cu from reputable Canadian suppliers like Red Fox Peptides typically costs $80-120 CAD for 50 mg vials
Conversely, patients who carry variants in hydroxysteroid 17-beta dehydrogenase 13 (HSD17B13, rs72613567) and mitochondrial amidoxime-reducing component 1 (MARC1, rs2642438) are more protected than the general population (48, 49)
BPC-157 (Body Protection Compound-157) is a pentadecapeptide consisting of 15 amino acids derived from a larger protective protein in human gastric juice