For an injectable peptide, those are not minor concerns
The individual amino acids are absorbed and can be used to resynthesize glutathione intracellularly, but this is a slow, rate-limited process that does not produce the acute plasma elevation seen with parenteral routes
293 Furthermore, metabolic adaptations in CSCs, including a shift toward OXPHOS and FAO, enable them to sustain energy production even under low-nutrient conditions, increasing their resistance to glycolysis-targeting therapies
BPC-157 (Body Protection Compound-157) is a pentadecapeptide composed of 15 amino acids, derived from a partial sequence of a protein found in human gastric juice
A 2025 study in the Personalised Medicine journal confirms it
For optimal efficacy, apply them to your face with light massages in the evening