Do all Pandora bracelets tarnish?

I'm curious to know, do all Pandora bracelets eventually tarnish over time? I've heard that some metals can lose their shine due to exposure to air, moisture, or even skin oils. Is this the case with Pandora's jewelry, or are there certain types or materials that are more resistant to tarnishing? I'd appreciate any insights you can provide on this topic, as I'm considering purchasing a Pandora bracelet and want to ensure it maintains its beauty for years to come.