A recent Reddit post shows a Cosmic Orange iPhone that changed from orange to pink. The glass insert on the rear remains as orange as ever, but most of the aluminum frame is now a rose gold hue. Apple Insider believes oxidation or a problem with Apple's anodization process could be the likely cause. Turns out it was on the right track. Peroxide-based cleaning liquids can affect anodized aluminum. Exposing anodized aluminum to peroxide could result in discoloration of the finish. Apple clearly says, "Don't use products containing bleach or hydrogen peroxide" to clean your iPhone on its iPhone support pages. If you need to disinfect your iPhone, Apple notes you can wipe the exterior "using a 70% isopropyl alcohol wipe, 75% ethyl alcohol wipe, or Clorox Disinfecting Wipes." Whatever you do, "don't use aerosol sprays, bleaches, or abrasives" to clean your iPhone. In this case, it's probable that the original poster used such a cleaner to wipe down his iPhone and forgot about it. Or h...