Cleaning products for Palladium

Hi everyone, I was wondering what products do you use for cleaning / polishing your Palladium?

I have a Palladium necklace chain which looks terribly dark. Of course, I read that palladium forms a "patina" but it just looks to me like how silver tarnishes
I am used to the shiny chains, so I am hoping to get my Palladium chain back to when I first got it in the box!

So what do you use to clean / polish your Palladium?
Do polishing cloths for metals work?
Does liquid jewelry cleaners (either with, or without ammonia) work?
What brands do you recommend?
Has anyone tried "GemCare's Radiance 2000 tarnish remover polish"?
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