Our BZK Foaming Hand Sanitizer has advantages over gelled alcohol sanitizer, while both products are fast acting and allow use without water or towels, our product is non-flammable, less drying to the skin and will not stain clothing. Leave on hand sanitizers should not be used as a substitute for proper handwashing and hygiene practices. Studies have shown that benzalkonium chloride-based sanitizers demonstrated greater sustained degerming activity than gelled alcohol gel sanitizers