BLEND. YOU ARE GETTING BPC157 and TB500 10 mg vials, KPV 10 mg and GHK-CU 50 mg. You will blend these on your own. The “klow stack” — typically a combination of GHK, BPC-157 and TB-500 — is a powerful regenerative peptide pairing used in research for healing, recovery, and tissue repair. Here’s a breakdown of the potential benefits attributed to this stack (for research purposes only)