Almost everyone has stretch marks some of which are prominent that can hinder your appearance. But there are several creams and oils in the market that promise to erase out these marks. Do these products really work? We ask celeb cosmetic physician Dr Rashmi Shetty. The truth about stretch mark creams Says Dr Shetty that these creams do work to an extent but don t expect magical results. They will lighten the existing ones a bit but you cannot really get rid of them. If you feel using these creams can prevent stretch marks (post pregnancy) then you are wrong.