In simple terms: active ingredient made under appropriate quality systems (often GMP-aligned), sourced from an FDA-registered establishment, and backed by documentation such as a Certificate of Analysis (FDA Law Blog)
BPC-157 and TB-500 are not the same peptide
BPC 157, a pentadecapeptide derived from human gastric juice, has been demonstrated to promote the healing of different tissues, including skin, muscle, bone, ligament and tendon in many animal studies
Antioxidant and anti-inflammation effect of GHK-Cu in bleomycin-induced pulmonary fibrosis
10.1016/j.freeradbiomed.2019.07.037 Free Radic
Third, and perhaps most importantly, self-administration removes the clinical feedback loop