The Medaille d'Or line received its name from the Medaille d'Or medal it received in 1925. It is made from all natural products including pine-based turpentine, lanolin, beeswax, mink oil and carnauba wax. The formula has not changed since 1925.
The Beaute du Cuir range is a more modern day creation by the same supplier. This range is still a Saphir product but cannot technically be classified as MDO as they use ingredients that were not available in 1925 orused in the original line. The BDC line was created as an extension to the Saphir range as it is more suited for closed-pore or shiny leathers which are less inclined to absorb the high-concentrations of waxes/oils in the MDO range.