OFF! Backyard FamilyCare Smooth & Dry Insect Repellent I uses a powder-dry bug spray formula that leaves your skin feeling smooth and dry, not oily or greasy. Live life your way, and repel mosquitoes that may carry Zika, Dengue or West Nile viruses.Our long-lasting mosquito spray formula provides 6 hours of protection and also works on the outer surfaces of clothing. This insect spray is formulated with 15% DEET. Ideal for backyard, beach, gardening, picnicking, playing and relaxing. Keep out of reach of children and pets. See the label for other precautions and usage directions.