The success of ADMET largely depends on the choice of the catalyst. Common catalysts used in ADMET include ruthenium-based catalysts, such as the Grubbs and Hoveyda-Grubbs catalysts. These catalysts are known for their high activity and tolerance to functional groups, making them ideal for a wide range of substrates. Other catalysts include molybdenum and tungsten-based complexes, which can also be effective under certain conditions.