JVP Poultry Mite & Lice Powder kills mites, lice and fleas by destroying the waxy coating present on insects. Suitable for use on the birds directly and also in the coops and bedding areas. Natural organic formulation using diatomaceous earth powder which works by causing the insect pests to dehydrate. Safe enough to be used on laying chickens, turkeys and ducks etc while you can still eat the eggs.