Best place to shop perfumes in abu dhabi/ dubai mall

I have limited time in uae, only 2 days. I’ll be based in abu dhabi so can people recommend me local market or mall where i can buy perfume or other products which are cheaper here compared to India.

Additionaly I’m visiting dubai for an evening to see burj khalifa where i can go to dubai mall as well. Can anyone recommend best place to buy budget friendly perfumes there.