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How Long Is Insect Repellent Good For

According to John Smith, an engineer with Sawyer, says its products with DEET will last 10 years depending on storage. For its products with picaridin, those can last three years. Tender Corporation, the company behind Natrapel, suggests replacing insect repellent every three years.

How long does insect repellent last once opened?

There is no one-size-fits-all answer here, but the consensus is that bug sprays have a shelf life of about three years. At that point, you should probably throw them out — not because they will harm you, but because they may be less effective in repelling bugs.

How do you know if insect repellent is expired?

If the product doesn’t smell like it normally does, it’s possibly expired. If you have a cream or gel repellent, squeeze some out of the packaging. Check for unusual odors. If the product looks dried out, it’s probably old and no longer effective.

How long is DEET bug spray good for?

DEET-based insect repellents, which are the most common type of repellents sold in the United States, do not have expiration dates because DEET lasts indefinitely, according to DEETOnline.org.

How long does spray insect repellent last?

Spray versions protect for up to 12 hours against mosquitoes and ticks, and up to eight hours against flies; lotion formulations last for up to 14 hours against mosquitoes and ticks, and up to eight hours against flies. Because they’re the most effective repellents, people often ask which is better.

Does pyrethrin expire?

Generally pyrethrin products are stable for about 2 years if stored per the manufacturer’s instructions.

Does bug repellent expire ark?

Chemistry Bench, bug repellant can spoil, so preservation may be required.

Does Ultrathon insect repellent expire?

DEET levels in Ultrathon(TM) Insect Repellents are as follows: -Lotion = 33.33% DEET (Stable up to 5 years from date of manufacture)… see more. We suggest purchasing new product after these times have expired. So the date code on this can would be the 45th (045) day of the year 2002.

You can find more information on insect repellents by reading the complete article here.

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October 22, 2023

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