Hair glue is used to keep in place the artificial hair extensions. It is a strong adhesive and generally water resistant. It is difficult to remove from clothes but the following method can get rid of it from fabric. First scrape as much glue as you can from the cloth. Then dip a clean cloth in a mix of dish washing detergent and warm water. Then dip another piece of cloth and dip it in cold water and rub it on the fabric on the spot of glue stain. Now you can also apply any stain removing product and then wash it in the washing machine. In case of stubborn stains, you can use a tooth brush dipped in nail polish remover.