BWCA Insect repellent lifespan? Boundary Waters Gear Forum

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Insect repellent lifespan?

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MossBack

06/07/2022 06:45AM

I know this is basic stuff, wondering if DEET or PICARIDIN ever goes bad with age?

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Banksiana

06/07/2022 10:03AM

Don't know about Picardin but DEET seems to last forever.

Nobody exists on purpose, nobody belongs anywhere, everybody’s going to die.

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EddyTurn

06/07/2022 11:04AM

Picaridin lasts for at least 3 years, in my experience. After that a lotion may become kind of soapy and non-homogeneous. An article referenced on Sawyer's website says that Picaridin doesn't have expiration date, but gets less effective over time, same as DEET. On Amazon Q&A a message signed by Sawyer Products says: Our insect repellents and sunscreens have a shelf life of 10+ years when properly stored in a cool/dry location away from direct UV exposure.

"A man's got to know his limitations."

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deerfoot