Daily supplementation provides steady tissue levels
As noted in this study, the complex action of BPC 157 tends to rule out a simple effect of either the vasoconstrictor (L-NAME) or the vasodilator (L-arginine)[3] in the noted rapid presentation of blood vessels that bypass the two obstructions of major vessels and reestablishing the blood flow that was interrupted by ligation in rats which subjected to the ischemic colitis procedure
Exogenous sources include radiation, UV light, x-rays, gamma rays, chemicals that react to form peroxides, ozone and singlet oxygen, chemicals that promote superoxide formation, quinones, nitroaromatics, bipyrimidiulium herbicides, chemicals that are metabolized to radicals e.g., polyhalogenated alkanes, phenols, aminophenols etc
The oral formulation uses similar delayed release technology