SC Johnson a family company. DryTouch technology. Long lasting protection from mosquitoes, ticks, biting flies, gnats & chiggers. Repels mosquitoes that may carry zika, dengue or West Nile virus. A family company since 1886. - Fisk Johnson. Repels mosquitoes, ticks, biting files, gnats and chiggers. Lot suffix (A) or (C) Indicates appropriate establishment number. No CFCs: Contains no CFCs or other ozone depleting substances. Federal regulations prohibit CFC propellants in aerosols.