If you collect vintage Barbies with an eye towards getting them back in perfect pristine condition, there is a very good chance that you have run into the condition known as “green ear.”
Green ear describes a discoloration on the ears of Barbie's that have worn metal earrings at some time in the past, staining the plastic and creating an unpleasant looking color. If you are concerned about green ear, it is important to realize that there are methods for removing it safely.
One commonly accepted way to remove green ear is to use a product known as Remove-Zit, though this product should not be used on the mod era dolls as it will bleach the skin to white. To use Remove-Zit, you will be applying a thin coat of it to the area affected with a wooden stick. Read more