Matte black pillars and offroad plastic trims?

[Kiddetailer]

There are cars with Matte black door pillar trims and plastic fender flares. I am curious which product is actually proven to work to protect these areas? 

Optimum Car wax, Hyper seal , etc. will they work? Or do I need to use something like 303 Aerospace?

There are trim protection specific products like Opti-Trim , but I'm asking about more of a product in regards to regular continual protection for cars that don't want a coating. 

[Jayk82]

I've been using a lot of Hyper Seal as of late on areas you describe. I believe I've seen Ron mention Leather Protectant may actually protect these areas from UV damage better than even Hyper Seal. 

[dlc95]

I just use whatever protectant the customer got on the paint.

 

My default is Car Wax. 

 

Of, if I'm using a cleaner wax, like Hyper AIO,  I'll most likely use Car Wax on those parts.

[Ron@Optimum]

On shiny trim (piano finish) Protectant Plus goes on almost like a lotion and needs to be buffed off, while Hyper Seal is clear.  I think Hyper Seal is more durable and they provide equal UV protection.  Personally I use Protectant Plus on matte plastic (mud flaps/bumper trim) and Hyper Seal on the shiny surfaces (window frames), but there's nothing scientific about my choices.