What credit card is best for shopping such as personal care and cosmetics? Realised that most cards give rewards and cashback for fashion items only.?

It totally depends on Card tie-ups with the organization who provided discounts on shopping.you can do discount shopping on beauty items like Sephora and much much more on Barakataklan

Its depands on time. Some banks provides discount if you pay via credit card or debit card. But these offers dont run everyday. But there is a another option to get discount via coupons & Offers site like If i purchased someting from Amazon UAE then i will search Amazon uae coupons on uAEPAyingless.com. From there i will definitely find a coupon or offer to get discount.