How often should the pillow case be replaced? This is a question that has always come to our minds at least once. You should know that the pillow case is a germ nest. It accumulates all hair impurities, oil, sweat, hair products, moisturizer or night cream. Therefore, it is advisable to change the sheath frequently, no matter what your hygiene strike.
It would be perfect to change the sheath every two days, sleeping once on one side, once on the other. If you find it excessive you can change it even less often, but not less than once a week if you want to maintain good hygiene.