Size: 250mlPyohex is medicated shampoo used for the treatment or as an adjunct treatment for dogs with dermatitis caused by a range of bacteria or mange. Pyohex works by binding strongly to hair and skin penetrating the follicle to eliminate bacteria. Pyohex also has a 4 day residual action for longer lasting protection. Pyohex is pH neutral, nontoxic shampoo specifically designed for canine skin, it will remove dirt, scale and degrease but does not leave the coat and skin dry. For best antibacterial action use in conjunction with the Pyohex medicated conditioner. Please note when your pet has any type infection it is best to also seek veterinary advice.