bpc-157 research safety Peptide: Mechanisms, Benefits, and Scientific Applications BPC-157 - Research Grade Peptide
Description
Which could make you question, is B12 the issue, or is it an imbalance in the skin microbiome thats reacting to high-dose B12

Poon E, Harris AL, Ashcroft M
However, once reconstituted in bacteriostatic water, it has a limited shelf life and begins to degrade, especially at room temperature

This can happen from temperature fluctuations, expired peptide, or contamination
