Salon estheticians and at-home bathroom hair removers alike use warm or cold wax applied to the body and pulled away on muslin strips that bring the unwanted hair with them. Because waxing pulls hair from the root, the results last for up to a few weeks. Some sugar-based hair removal products contain water-soluble ingredients that wash away from the muslin strips with simple soap and warm water, but hair remover wax contains oils, resin and dyes that may prove more challenging to remove when you want to reuse your strips.
Scrape away excess wax with the dull edge of a butter knife.
Apply heavy-duty laundry pretreatment to the strip and allow it to sit, according to the manufacturer's instructions. Rinse the muslin strips in hot water.
Launder the muslin strips in hot water with heavy-duty laundry detergent. Inspect the muslin strips when they come out of the laundry to see whether any traces of the stain remain. If the wax or any stickiness remains, repeat the process. If you see only the color of the wax's dye, launder the strips again using chlorine bleach with the laundry detergent. Do not dry the strips until the stain is completely gone because the heat from the dryer can set the stain.