Doff cat and dog repellent gel the doff cat and dog repellent gel can be used in both your house and around your garden placed around the edge of your garden the gel can be used as a deterrent against cats and dogs intruding in and around your garden alternatively the product can be applied to hard surfaces and garden areas to deter your pet from fouling in particular areas thanks to the use of aromatic plant oils that are a safe and natural way to deter animals repellent gel natu