Bar soap brand
(Other definitions for zest that I've seen before include "Zing" , "Orange-peel" , "added flavour" , "Keen interest" , "Verve, gusto" .)
(Other definitions for ivory that I've seen before include "Creamy-white colour" , "National emblem" , "Substance of elephant's tusk" , "Material from elephant's tusks" , "Yellowish white colour" .)