Garvicin KS, GakC is a peptide at sizes of 32 amino acids to form bacteriocin garvicin KS (GarKS), with other 2 peptides , GakA, and GakB. Garvicin KS, GakC inhibits fibroblast viability and proliferation. Garvicin KS peptides inhibit MSSA with MIC values in the order GakB >GakC >GakA.