14 WHO (NCBI Bookshelf)Guideline on safety-engineered syringes and aseptic technique for IM, ID and SC injections (2016)
Safety Profile BPC-157 does not have a clear safety profile in humans
It builds the capillary network active regeneration depends on (new blood vessel formation) and stabilizes tissue barriers so new tissue holds together. Without blood flow to the dermis, GHK-Cu has the signal but the raw material never reaches the work
Although BPC-157s role in controlling collagen has yet to be proven experimentally, it is believed that this peptide is involved in the formation of collagen, or the defragmentation of collagen, which is vital to recovery since connective tissues contain collagen mostly
Subramaniam M, Bausch C, Twomey A, Andreeva S, Yoder BA, Chang L, Crapo JD, Pierce RA, Cuttitta F, Sunday ME