I think they are pulling a "Pantene" on us. Judging by the ingredients, they seem pretty similar. I bought the Polisher because "Frizz Buster" sounds silly and the picture of the poufy haired woman with the red line across her face looks like a kiddie cartoon...
Polisher Ingredients:
Cyclomethicone , Dimethicone , Phenyl Trimethicone , Aloe Extract , Benzophenone-3 , Fragrance
Frizz Buster Ingredients:
Cyclomethicone , Dimethicone , Trimethylsilylamodimethicone , Benzophenone-3 , Fragrance