Benzalkonium Chloride Hand Sanitizer Antibacterial Effect
Manufacturers add other ingredients for various reasons.
Benzalkonium chloride hand sanitizer antibacterial effect. The antimicrobial effects of quaternary ammonium compounds qacs such as benzalkonium chloride were first described in the 1900s. Ingredients such as glycerol. Demonstrating the persistent antibacterial efficacy of a hand sanitizer containing benzalkonium chloride on human skin at 1 2 and 4 hours after application author links open overlay panel sidney w. Bondurant md a collette m.
Aden andrus academic medical research technical 3. 1 under laboratory conditions benzalkonium chloride demonstrates decent activity against some bacteria fungi and enveloped viruses. Researchers at the los alamitos unified school district in california conducted a five week study in 2001 and found that students who used hand sanitizer containing benzalkonium chloride at scheduled times each day were 33 percent less likely to be absent due to illness. However a potential negative effect is that the active ingredients will irritate the skin because of their continued presence on the skin surface.
Hand hygiene says it s difficult to assess the effectiveness of alcohol free hand sanitizers because no standardized ingredient exists 1 2. Benzalkonium chloride bak otherwise known as alkyl dimethyl benzyl ammonium chloride is a toxic chemical used in cosmetics it is a antimicrobial agent deodorant surfactant and a preservative. Since the outbreak of covid 19 sales of hand sanitizers have soared. Benzalkonium chloride has repeatedly demonstrated its toxic characteristics in laboratory experimental and clinical studies.
A hand sanitizer monograph. It s become such a sought after product that pharmacies and supermarkets have started limiting the number that people can. What is benzalkonium chloride used for. Benzalkonium chloride is primarily used as a preservative and antimicrobial agent and secondarily used as a surfactant.
These ingredients are also key in non alcohol based sanitisers. These include additional agents which are active against viruses or bacteria such as chlorhexidine or benzalkonium chloride. However practical results. It works by killing microorganisms and inhibiting their future growth and for this reason frequently appears as an ingredient in antibacterial hand wipes antiseptic creams and anti itch ointments.
Usually alcohol based hand sanitisers contain between 60 95 alcohol. This study was performed to evaluate the effectiveness of a new commercially available hand sanitizer using 0 12 benzalkonium chloride bzk as the active ingredient in reducing transient skin contamination with staphylococcus aureus in health care workers hcws as compared with the effectiveness of a 70 ethanol based hand sanitizer.
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