Final answer:
Broken eyeshadow can be fixed using hydrogen peroxide by breaking the eyeshadow further, adding hydrogen peroxide to make a paste, flattening the eyeshadow and letting it dry completely.
Step-by-step explanation:
Fixing broken eyeshadow with hydrogen peroxide is something you can accomplish with a few simple steps. First, you need to break the eyeshadow into a fine powder. Once this is done, add a few drops of hydrogen peroxide to the shadow - just enough to make it damp, not drenched. Using a spoon or similar tool, mix the eyeshadow and hydrogen peroxide until it's a paste-like consistency. Then, flatten it down into its original shape using a flat surface, like the back of a spoon. Allow the eyeshadow to dry completely, which may take a few hours or even overnight. After this, your eyeshadow should be as good as new.
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