Remove yellow color from old consoles/Controllers?

[KenaiPhoenix]

I have my old trusty PSone with a controller that is more yellow than its original white color. When I see more "preserved" Dual Shock 1 or PSone I feel embarassed, looks like I put my console in a really bad place when I was a kid.

So I think I might try to clean it up, and see if I can recover some of its original color. I searched online and the one that always shows up is Retr0Bright, which is probably somewhat difficult to get here, and probably expensive. I have also read that is not that good, and that leaving the plastic to the sun is not as good as they said it is.

So I was wondering if any of you have try to "repair" the color of your console/controller. What did you use? Did you know Retr0Bright?

Do anyone knows a good technique that hopefully doesnt needs to open the system? My PSone and its controller are probable 20+ years at this point, and they work perfectly, so I would love to avoid being the one that breaks them

Thanks!

 

[Tonberry]

I remember The 8-Bit Guy having a pretty in-depth video about this particular topic a bunch of years ago.
Maybe you'll find something in this video that helps:

Here's a pic of him having tried a bunch of methods on keys:

 

[Boofytan]

Its good to open up the system & get out dust and whatnot anyway.