Why are cardboard tampons bad?

The only bit of your tampon that could be made out of cardboard is the applicator, which is what helps you insert it. Since cardboard doesn't slide in as smooth, it may take some getting used to but it's not a crazy difference so don't be too scared! Neither resuable, plastic, or cardboard applicators are bad for you. However, many people switch to cardboard or resuable because it is better for the planet.