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EC: Hello,
I know someone who takes boric acid in capsules with his wife for the past few years. He said borax turns into boric acid in the stomach so he thinks it's more efficient to take boric acid. They are in their seventies. They measure out the boric acid using a scale and put it in capsules... a bit time-consuming, he said.
I will email him to find how many mg per capsule and what size capsules they use and reply to your post when I hear back.
Deirdre
Boric Acid Vs Borax
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Boric acid and borax are about equally effective.
I got this info straight from Walter Last, who wrote the article on borax.