But here's what nobody tells you upfront: not all peptides work well nasally, bioavailability drops significantly compared to injection (often 30-50% vs 80-100%), and proper nasal technique makes the difference between success and complete waste of money
Both substances are linked to leukoencephalopathy
The mechanism of this combined effect appears to be sequential: TB-500 mobilizes and migrates repair cells to the injury site (via actin regulation and chemotactic signaling), while BPC-157 creates the optimal local microenvironment (via angiogenesis, growth factor expression, and NO modulation) for those cells to perform effective repair once they arrive
Preclinical studies have explored BPC-157s role in cell migration, angiogenesis, and inflammatory modulation, particularly in models examining tissue regeneration and gastrointestinal physiology
It does not act centrally
How quickly does peptide therapy work