bpc 157 benefits research BPC-157: Miracle Healing Peptide or Hidden Danger? Is BPC-157 Banned? Oral vs.
Description
In terms of side effects and tolerability, the advantage goes to GHK-Cu

If you experience any unusual or severe side effects, stop using VITNEURIN AQ INJECTION 2 ML and seek immediate medical attention

Wadkin, L

Lessons in biology from patients with inborn errors of vitamin B12 metabolism
It is essential for the formation of red blood cells, neurological function, and DNA synthesis

Some UK product information leaflets (SmPCs) for B12 preparations do mention skin reactions as potential side effects, though not all specifically list acne