Talk:Radiation Suit/@comment-45770736-20200826022515/@comment-45063100-20200923195835

It is poisonous if you ingest it (which means don't rub your hands in a bunch of loose, flakey lead and then eat with them), though it doesn't actually kill you in small amounts (unless fired from a gun).

But one of its main uses is its ability to shield from radiation, which is why it's used in the crafting recipe. (Also in a lot of fantasy stuff, such as D&D, it has the ability to repel magic the way it does with radiation).