Vetbac Instant Foam Hand Sanitizer is based on the active ingredient Benzalkonium Chloride, in a unique foaming, non-drying, moisturizing and conditioning, Patent-Pending formulation. The efficacy of Vetbac has been confirmed to reduce S. aureus 99.99% in as little as 15 seconds. Vetbac's benzalkonium chloride is listed in the Antiseptic Monograph as Category III for safety and efficacy.