How to clean your reflector?

So i have a adjust a wing reflector and they start to get a little bit dirty. of course a paper towle and water probaly works fine but looking for a product made for reflector cleaning.

So just wondering if anyone have an idea of the optimal thing to use? or any sugestions or know how woud be appreciated..!

Thanks

Id use glass cleaner,the kind thats in an aerosol and foams preferably,sprayaway is a good brand name here in the states.

Awesome cleaner from the dollar store, works awesome =)

Thanks.. will test out som glass cleaner just good to hear other people have uesed it without damaging the reflector