In the 1970s, a further field of application for polycosanols made from sugarcane wax was found in the medical industry, the lowering of the cholesterol level. This had been pursued with various investigations by the Cuban laboratory Dalmer S.A. in Havana, especially against the background of the fall of the Iron Curtain. During this time, there were many - also controversial - patent applications. The last known patent was applied in 1998 by S.A. Dalmer. Those results were analysed, summarised and developed further by I. Gouni-Berthold and H. K. Berthold.from 2004 to 2007 the cholesterol-lowering effect of polycosanols made from sugarcane wax was transferred to montan waxes because of their very similar chemical structure by E. Krendlinger and M. Neumaier. Currently, nutritional supplements containing polycosanols for lowering the cholesterol levels are offered in a wide range.