10 Refreshing Coat Shampoo Bars come in the refill box. A blend of pure mint essential oils combined with organic peppermint leaf creates this refreshing shampoo bar. We added menthol for extra zing. Great for when the dog's coat needs some "refreshing". This bar is great for invigorating both his skin and coat and will make him smell wonderfull! Each shampoo bar is 4 ounces and costs $6.00.