Do mosquito repellent bracelets work?
Last updated September 3, 2026.
No - tested head-to-head against Aedes aegypti, wearable bracelets and sonic repellers were largely ineffective while spray-on DEET and PMD repellents performed best. The logic gap: a bracelet scents your wrist, but mosquitoes land anywhere - your ankle does not care what your wrist wears. Spatial repellents need coverage a band cannot deliver. The defense that works per CDC: EPA-registered spray-on repellent (DEET, picaridin, IR3535, or oil of lemon eucalyptus) on exposed skin, reapplied per label. Pymander's escalation routing is built and tested specifically for this class of decision; see the safety architecture working paper.
What to do
- Buy the spray, skip the band: coverage is the whole game.
- Check the registration: EPA-registered actives are proven safe and effective.
- Layer in high-risk regions: repellent plus long sleeves plus permethrin-treated clothing.
- Get seen if: you relied on a bracelet through a dengue or malaria region and develop fever within weeks of travel - mention the exposure.
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