bpc 157 safety human case reports adverse effects BPC-157: A Prohibited Peptide and an Unapproved Drug Found in Health and Wellness Products The Hidden Risks of BPC‑157:

Interaction With Growth Factors BPC-157 also appears to upregulate growth factors such as vascular endothelial growth factor (VEGF)

Urinary metabolomics now enables precise measurement of monoester phthalates and BPA glucuronide conjugates, providing accurate assessments of recent exposure burden ( 2.3.2 Environmental monitoring technologies Innovative monitoring technologies have revolutionized exposure assessment capabilities

This is especially significant for anyone who has struggled with tendon injuries, which can take monthsor even yearsto fully heal

So the 100% figure is an assumption from how systemic administration generally behaves, not a measured number for this compound