Not a doctor. Really don’t do/consume anything on the basis of what you hear on Lemmy.

But maybe the bacillus thuringiensis toxin? Bacillus thuringiensis is a bacterium that produces a natural pesticide that I’ve heard (again, not a doctor, don’t take anything I say as medical advice) doesn’t affect vertibrates. But mosquitos aren’t vertibrates. So, (again, not an expert and this may be bullshit) maybe that means it’s safe for humans to use.

But what do I mean by “use”? I’m guessing it might (not a doctor) be safe to use on the skin (if it could be obtained in medical-grade quality – but I’m not an expert).

But I kindof doubt (though I could be wrong) that eating bacillus thurengiensis or the actual toxin would work. The toxin is (I believe, just from reading the bacillus thuringiensis Wikipedia page) a protein, and I don’t think (ɹoʇɔop ɐ ʇou ɯɐ I) consumed proteins are likely to get into the bloodstream. (And if they did, I suspect (though I am not a doctor) that would cause you some problems, or at least an immune response and some inflamation or some such.)