Restoring Yellowed Plastic

[Ucwepn]

I have done it with several vintage stormtrooper figures, the star wars collecting community absolutely frowns on this practice though. They claim it does weaken the plastic and makes it become brittle. If overdone it can make white plastic turn pink forever also, I have seen some pinking but not weakening myself so do it at your own risk, also know that it will destroy any stickers and fade some printed tampographs