Warren london critter color warren london's critter color™ is a temporary colour system for pets. The 'apply and dry' application makes creative colouring simplified and less messy. The most versatile color system on the market today. Temporary colour apply dry application mix for custom colours non toxic ph balanced size 113.8g how to use step one apply critter colour to a dry or damp coat with a latex gloved hand, tint brush, spray bottle or dilute product by 25 percent and use in a airbrush system. Step two use a hair dryer to set the colour. You can easily customise your colour with multiple applications or mix several colours together to make your own. The colour will wash out from one to several baths. Washout time will vary due to coat conditions, heat and humidity at the time of application, plus the amount of layers applied for colour depth.