GHK-Cu typically remains soluble up to 25-30mg/ml, making concentrated preparations practical
For combination research at the standard 1:1 ratio, the practical advantages add up
Nerve pain is not my area of expertise (anxiety is), and because anxiety and depression is common in this population, there are very likely similar underlying causes (more on that below)
BPC-157 is not FDA approved as a standard medication, and the FDA has identified concerns around compounded BPC-157, including possible immunogenicity risk, peptide-related impurities, and limited safety information for certain routes of administration
Nevertheless, this does not mean that oral BPC-157 will be ineffective for joint pain or that BPC-157 injections wont show GI effects
Oral Vitamin B12 may not provide adequate supplementation due to variations in metabolism and poor absorption