Er...

[He's skimming through, and then flipping to the next page.]

There's a few, but most of them say 'externally only.' Baby oil, KY jelly, scent and dye-free hand lotion...

[That is good to know, Bon and Rin are both idiots and probably would have tried one of them if they didn't know any better.

He's still skimming to find what he's looking for, until he stops midway down the page.]

It looks like olive oil is safe to use? And spit, but it takes a lot of it.