Nano Ceramic Protect Evo Clean (for hands) based on quaternary ammonium salts, which at very low concentrations have excellent bactericidal properties and very good action against fungi and viruses. They work by „opening” the cell walls of microorganisms, so that the cell spills out. Quaternary compounds form a thin washable layer on which bacteria, viruses and fungi reluctantly settle, this is confirmed by scientific publications from the Philadelphia list, which show that quaternary salts stay on the hands for up to 4 hours (e.g. „Demonstrating the persistent antibacterial efficacy of a hand sanitizer containing benzalkonium chloride on human skin at 1, 2, and 4 hours after application ”, American Journal of Infection Control 2019, 47 (8), 928-932). Quaternary salts, compared to alcohol, are odorless, colorless, non-flammable, non-toxic, non-corrosive, are stable in a wide range of pH and temperature, are characterized by fast action and have detergent properties removing dirt from the surface. They are used in all branches of industry, from household chemicals, industrial chemicals, through cosmetics to pharmaceuticals, as effective preservatives, surface protection agents and cleaning agents. Nano Ceramic Protect Evo Clean has been additionally enriched with glycerin and betaine derived from beetroot extract, which perfectly moisturize the hands.