Catalog › KLOW Image 1 of 1 KLOW $0.00 KLOW is a four-pathway research stack that combines four peptides BPC-157 + GHK-Cu + TB-500 and KPV. Add To Cart Added! KLOW is a four-pathway research stack that combines four peptides BPC-157 + GHK-Cu + TB-500 and KPV.