Pickarts work, researchers looking to test GHK-Cu in a wound healing context should administer a total GHK-Cu dose of 100200 mg to produce therapeutic actions, though the necessary effective dosage may be even smaller [5]
The problem is evidence quality
Reconstitute: Add 3.0 mL bacteriostatic water ~ 6.67 mg/mL total concentration (~3.33 mg/mL of each peptide)
BPC-157 is a synthetic peptide consisting of 15 amino acids, derived from a naturally occurring protein in human gastric juice known as Body Protecting Compound (BPC)
doi:10.1016/S0140-6736(21)01751-7 [2] Carvas AO, Leuthardt A, Kulka P, et al
Because the label law (trade secret) protects companies from not disclosing the fragrance ingredient list, most people don't know that hair products (and skin care products) are loaded with such toxic chemicals