ghk-cu ligament healing Tripeptide–copper complex GHK‐Cu (II) transiently improved outcome in a rat model of ACL reconstruction - Fu - 2015 - Journal of Orthopaedic Research ghk cu tendon repair Acute

Each peptide presents a unique opportunity to study how hormonal systems interact to govern appetite, glucose metabolism, and energy balance

For convenience and needle aversion : Oral GHK-Cu is the easiest option, but understand that systemic benefits will be significantly limited by poor bioavailability

Unfortunately, the test proved to be too complicated and unwieldly for many patients and their clinicians as it required "an overnight fast, ingestion of (modestly) radioactive cobalamin, a 24-hour collection of urine, a cobalamin injection, two trips to the laboratory, and, if the result [was] abnormal, repetition of the entire procedure with a dose of [intrinsic factor]" (45)

The vast majority dissolve just fine in standard BAC water