ghk-cu promotes collagen synthesis as a multifunctional copper peptide: routes, process engineering and emerging applications Unlocking the Secrets of GHK-Cu:

So, its still like, I hate to say, a dark market kind of thing or black market kind of thing, but thats kind of like what it seems like right now

et al (2021)

The product will be used solely for in vitro research purposes, in compliance with all applicable local, state, and federal laws and regulations

BPC-157 is better suited for chronic tendon injuries, gut healing, and situations where you want daily sustained signaling at a lower cost ($250/mo)

However, according to research published in the journal Acta Biomaterialia , about 95% of GHK-Cu injected into the dermis is metabolized and excreted from the body

A conditional Met -transgenic mouse was also generated, showing that the enhancement of MET levels in neurons selectively delays the disease onset in ALS mice models, prolonging lifespan, retarding motor neuron loss, and ameliorating motor performance (Genestine et al., 2011)