BAC to Nature's Allergen Control has been developed specifically to tackle allergic problems both in animals and for humans. The spray is a totally organic and natural blend of beneficial micro-organisms which break down organic waste materials such as dog scurf, cat saliva and dust mite faeces which are recognised as common triggers of allergic reactions. Spray directly onto the animal, it's bedding and other areas frequented by the animal as frequently as required to maintain an allergic free environment.