BPC-157 is not an approved substance in these contexts
10.4103/CJP.CJP_8_19 Chin J Physiol
Instead, gently swirl the vial in a slow, circular motion
In preclinical experimental systems, BPC157 is frequently discussed in connection with angiogenic signaling (pathways involved in how bloodvessel networks are organized), cytoprotection (how cells maintain stability under stress), and extracellular matrix remodeling (how the tissue scaffold is built, broken down, and reorganized)
Anything else warrants immediate disposal
How much actually gets through the skin depends on the carrier, the formulation, the user, and even the weather