topical or injectable.ghk cu GHK-Cu Serum: Benefits, Mechanism & Research Guide GHK-Cu Copper Peptides: Topical vs
Description
For in vivo studies, the choice of administration route should be guided by the specific research question local administration studies can examine site-specific repair biology, while systemic administration studies examine the capacity for circulating BPC-157 to produce tissue repair effects at sites distant from the injection site

For adults, the usual dose is 1000 mcg (1 mg) per shot

Bioactive peptides: an alternative therapeutic approach for cancer management

This is like the situation where the vitamin solution was exposed to too much light its just less effective
