Reported systemic and long-term concerns include:
Immune reactions:
As a synthetic peptide, it may trigger allergic or immune responses.Cancer and angiogenesis risks: BPC-157 promotes the creation of new blood vessels. For this reason, individuals with diagnosed or suspected cancer should strictly avoid it, as it could potentially support the growth or spread of tumors.
Contamination & purity risks:
Because it is primarily sold online as a "research" chemical, there is a lack of regulation. Unregulated products can carry a high risk of bacterial contamination or incorrect dosing.
I would stay away from peptides...