Walmart sells peppermint oil for baking, peppermint oil
softgels, and peppermint extract. See the related links for the
product listings on Walmart.com.
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Peppermint is not recommended as a bath oil. The peppermint
essential oil can cause stinging, or dermatitis. When peppermint
essential oil is included in mixtures intended for topical use it
is drastically diluted with an inert carrier oil.
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The chemical formula for peppermint is exactly C10H20O1
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It appears that peppermint oil, not peppermint extract, works
better to get rid of mice. This is because the extract contains
more alcohol than peppermint oil, so it will not be as strong as
the oil itself.