BZK (Benzalkonium Antiseptic Towelettes) is a topical antiseptic skin cleanser for use on minor wounds and scrapes. BZK helps reduce bacteria that could cause skin infections. Sting-free solution makes it ideal for patients with sensitive skin. Individually packaged in compact, water-resistant, single-use foil sachets that are alcohol and latex-free. Active ingredient: benzalkonium chloride 0.40%.