Several household substances that you probably already have on hand can be used to remove highlighter marks that you don't want to see. Lemon juice, baking soda, and even toothpaste can be used to get highlighter out of clothes. \
Sometimes, even ordinary stain removers will work to remove these fluorescent marks from your clothes. Just remember that some stain treatments can remove all the color from a piece of clothing, right along with the highlighter stain. \
This is why you don’t want to reach for bleach if you have a stain unless the item happens to be white already, as bleach will definitely remove all color from an item of clothing. \