Colgate Zig Zag,2+1 toothbrush brands, is now equipped with 100% Anti-Bacterial bristles, transforming into Colgate Zig Zag Anti-Bacterial. Infused with Silver Ions, these unique bristles inhibit bacteria build up on the bristle surface. Silver Ions (Ag+) attach themselves to the cell membrane on the surface of the Anti Bacterial product. online today!