I don't reveal the type or source.
I am confident the LubeGuard LXE esters and the HyperLube polymer esters are NOT the same chemistry.
The one thing that we should question with any additive of this type is how the Mfg. determined the dosage levels considering they both say their third-party-additives (TPA) can be used in conventional, Blends, and full synthetic oils?
Hopefully, they did extensive testing.