sodium-dodecyl-sulfate and stearoyl-2-lactylic-acid

This study characterizes the role of surfactants in removing microbes during a hand wash. Numerous studies address how surfactants support antimicrobial effect in soap, or cause irritation of skin, but no published studies show which surfactants are best for removing microbes. We used pig skin as a model for human skin and a lathering device to simulate a hand wash. A 10% sodium lauryl sulphate mixture was the only treatment significantly different from a water wash. There was a strong correlation between increasing surfactant concentrations above the critical micelle concentration and mean microbial reduction.

Topics: Animals; Colony Count, Microbial; Disinfection; Escherichia coli; Hand; Hand Disinfection; Hexoses; Humans; Poloxamer; Skin; Soaps; Sodium Dodecyl Sulfate; Stearates; Surface-Active Agents; Sus scrofa; Swine; Water