Ben's 30 insect repellent provides up to 8 hours of effective protection in buggy situations. Don't get bitten, get Ben's!. . . . CDC recommended concentration of 30% DEET guards against diseases transmitted by insects. Water based formula stays on your skins surface and evaporates slowly rather than being absorbed. Repels ticks and insects that may carry West Nile Virus, Lyme disease, Malaria, EEE, and other infectious diseases. Provides up to 8 hours of insect protection. Fragrance free so you can smell the great outdoors, not your insect repellent.