Both! Antibacterial products kill bacteria or hinder their reproduction. Antiseptic substances inhibit many microorganisms' growth and reproduction (but do not kill), including bacteria, fungi, protozoa, and viruses. This product does both. Health "E" Wipes contain the active ingredient of Benzalkonium Chloride at a concentration of 0.13%, which has been proven to kill bacteria while remaining safe on the skin and demonstrating high-quality antiseptic properties. If you have any questions about the efficacy (or any other questions) of these products, please feel free to reach out to us at info@petra-1.com