ghk-cu skin rejuvenation 30ml by InfiniWell GHK-CU Repair Serum – Lovely
Description
doi:10.1002/14651858.CD004655.pub3

How long that 10mg lasts depends on the research design and once reconstituted, the material has a finite stable window

Kastin AJ, Nissen C, Schally AV, Coy DH

Injury & recovery Investigated in animal models for tendon, ligament and muscle recovery