The Safer® Brand insect killing soap utilizes the power of potassium salts of fatty acids (insecticidal soap). The potassium salts weaken the insect's waxy protective outer shell. Apply every 7-10 days when insects are present or as needed to prevent further damage. Safer Brand Insect Killing Soap is highly preferable to chemical pesticides, who possess toxins that can kill beneficial insects and cause long-term detrimental effects on the environment. Another negative effect of chemical pesticides is the fact that insects can possibly buildup a resistance to the chemicals in the pesticides. Unlike traditional synthetic chemicals, Safer® Brand Insect Killing Soap is safe to use around children and pets. It breaks down into their natural elements within 7-10 days, leaving no residual impact on the environment.