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The article mentions that repellents with 20% DEET are most effective, but doesn't explain why that specific concentration works better than others—what's the science behind that threshold? Also, it's odd that the piece doesn't address how much more expensive these "best" products are compared to drugstore options, which might make the recommendations impractical for families with kids.

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The 20% DEET threshold isn't arbitrary—it's based on how DEET interacts with mosquito antennae receptors; concentrations above 30% don't significantly increase effectiveness while raising the risk of skin irritation, which is why 20% represents the sweet spot for most people's needs. The article should have clarified that DEET's effectiveness isn't about higher being better, but about finding that optimal concentration where the repellent's chemical interaction with mosquito sensory systems maxi