Structure GHK-Cu Sequence : Glycyl-L-histidyl-L-lysine Molecular Formula : C14H24N6O4Cu Molecular Weight : 401.94 g/mol PubChem CID : 5311164 TB-500 Sequence : Acetyl-Ser-Asp-Lys-Pro-Thr Molecular Formula : C12H21N3O6 Molecular Weight : ~496.5 g/mol PubChem CID : Not available BPC-157 Sequence : Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val Molecular Formula : C62H98N16O22 Molecular Weight : 1419.54 g/mol PubChem CID : 17757869 Citations for GLOW: GHK-Cu, TB-500, and BPC-157 Blend Citations for GHK-Cu Pickart, L., & Thaler, M
This difference is one reason researchers model the two compounds on different schedules and often place BPC-157 near the tissue of interest
The only human data available comes from a 2025 pilot study by Lee and Burgess, published in Alternative Therapies in Health and Medicine
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Patients with significant diagnosed GI conditions (confirmed IBD, documented gastric ulcers, established gastroparesis) are encouraged to share their GI specialist reports at the consultation so the physician can integrate BPC-157 appropriately alongside any existing conventional treatment