Some UK product information leaflets (SmPCs) for B12 preparations do mention skin reactions as potential side effects, though not all specifically list acne
[PMID: 16399388] PubMed record related to this compound for laboratory literature review
L., Dahl, K., Schffer, L., Sensfuss, U., Poulsen, C., Schlein, M., Hansen, A
Injection site reactions at the final injection site will resolve within their usual 24 to 72 hour timeframe
BPC-157 Dosing Protocol & Schedule BPC-157 has been studied in two main research formats
At PMC, every peptide protocol is guided by diagnostic testing and monitored with follow-up labs to ensure safety and effectiveness