In addition to the high cost of period products on consumers, the environment also pays the price.

And these period products can also be harmful to your health.

These are washable underwear designed to be worn on your period over and over again.

A woman holding up two pairs of period underwear

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On average, changing your tampon about every 4 to 6 hours is best.

Whenwashing period underwear, you’ll want to use cold water.

Woman in period underwear eating strawberries

If stains persist, don’t toss out your period panties quite yet.

Rinse the underwear under cool water until it’s clear (viaInStyle).

Then put a small amount of any stain and odor-fighting detergent on an old toothbrush and scrub gently.

Beige and red period underwear

Let it sit for a few minutes before tossing the underwear into the washing machine.