Abstract: An antimicrobial skin treatment composition comprises 0.001-5% w/w of a biguanide compound and/or 0.001-5% w/w of a quaternary ammonium compound. The composition may be a skin rub, in which case it may additionally comprise at least one alcohol, at least one lipogel and at least one oil. Alternatively the composition may be a skin wash, in which case it may additionally comprise at least one detergent agent and at least one amphoteric surfactant.
Abstract: Ductwork used for the supply of potable water in dental surgeries is prone to undesirable build up of biofilm and associated bacteria. These may be combated effectively by applying to the ductwork a composition comprising: a metal silicate or silicate complex; a metal phosphate or polyphosphate or orthophosphoric acid; and a non-ionic or amphoteric surfactant.