You can wash natissy™ Reusable Panty Liners with a normal washing detergent, but do not use fabric softener, bleach, acid, or chlorine (or products containing them).
Use as little washing powder as possible – it’s better to use less washing powder and wash your panty liners at a high temperature (at 203°F) and on a long cycle. You can drip a few drops of lavender essential oil before putting them in the washing machine.
Once the washing machine has done its job, stretch each panty liner in all four directions and dry them in the air or a drying machine.