Plastic restoring gel

Old yellowed plastic looks unrecoverable but it can be magically brought back to its original whiteness or bright color using hydrogen peroxide gel from a hair salon. The gel prevents the concentrated hydrogen peroxide from slipping off; you also wrap it in cling plastic to keep it moist. Plenty of YouTubers demonstrate how they restore old computers, old toys, old appliances with this stuff. I used Super Star Cream Peroxide to bring back white plastic parts in our bathroom. (Also good for whitening old bones.) — KK