BPC and tumor history: use with caution
BPC-157 is a synthetic peptide known for its regenerative effects on tissue, gut healing, joint repair, and inflammation reduction. However, because of its powerful
angiogenic (blood vessel forming) and
growth-promoting properties, there is concern regarding its use in people with a
history of tumors or cancer.

Potential Concerns:
- Angiogenesis (blood vessel growth):
- Tumors rely on blood vessel growth to feed themselves.
- BPC-157 promotes angiogenesis — helpful for healing, but theoretically could feed tumor growth if any dormant cells remain.
- Cell Proliferation:
- BPC-157 may upregulate certain growth pathways.
- That could be a risk in individuals with a cancer history, especially hormone-sensitive or vascular tumors.
- Lack of Human Studies in Cancer Patients:
- There are no long-term human studies confirming safety in people with a history of tumors or cancer.
- Most data comes from animal studies — encouraging for healing, but not definitive on safety in post-tumor conditions.

What Some Clinicians Suggest:
- Avoid use unless cleared by an oncologist or integrative medicine specialist.
- If used, limit to short-term cycles and monitor markers (inflammatory, tumor markers, etc.).
- Consider alternatives with less growth signaling (like curcumin, omega-3s, NAC, or red light therapy) for healing if tumor history is present.

Alternatives That Support Healing but Are Generally Safer:
- Taurine
- Glutamine (for gut healing)
- Collagen peptides
- Red light therapy
- Mitochondrial support peptides like SS-31 (less proliferative risk)