bpc 157 when do you take it Heal or Harm: Body Protective Compound-157 in the Gray Zone Peptide Therapy in The Colony

The study found faster wound closure rate and a higher percentage of ulcer healing with all three GHK-Cu treatment groups over placebo, however, the 0.3% group demonstrated the fastest closure rate and highest percentage of ulcer healed compared even to the higher 3% strength treatment

This suggests an extremely wide safety margin, at least in animal models

fragment-specific activity review: PMC8724243 KPV NF-B inhibition blocks nuclear translocation of NF-B, suppresses TNF-/IL-6/IL-8/IL-1 transcription, preserves normal immune signaling: PubMed 18061177 KPV PepT1-mediated uptake in inflamed tissue Dalmasso G et al

For example, when combined with glycine (as in GlyNAC), glutathione levels rose up and oxidative stress markers dropped by 73% over 1624 weeks (NIH)