Fecha de publicación: 25/11/2004 Fuente: WIPO "propolis" A method and emulsion for preserving the sharp edge of a metal blade, such as a shaving blade. The method comprises the step of immersing the blade in the emulsion of the invention, and leaving it immersed for the time in-between use of the blade. The emulsion comprises soap base, sodium sulphate lauryl ether, cetostearylic alcohol, ammonium trimethyl cethyl chlorate, anhydrous lanolin, liquid glycerine, aloe vera glycolic extract, propolis glycolic extract, propylene glycol, methyl parabene, propyl parabene, hydrolyzed wheat oil, hydrolyzed soya oil, triethanolamine, fragrance, coloring agent and non-mineralized deionized water.