Multi-functional antioxidants have only recently become available. Due to their
special molecular design, they optimally combine primary and secondary antioxidant
functions in one compound.
Having several stabilizing functions combined in the same molecule, multi-functional
antioxidants eliminate the need for co-stabilizers, such as phosphites and thioethers.
This not only simplifies the formulation, but it also simplifies the storage, handling,
and use of the stabilizer.