Ultrathon Insect Repellent Expiration Date

When you head outdoors, bug spray is a must-have item for protection against mosquitoes, ticks and other biting insects that may carry disease. If youve found an opened can or bottle of bug spray in the back of your medicine cabinet, you may wonder if its expired. Insect repellent usually lasts for several years before losing its effectiveness. You can determine your products efficacy even if youre not sure how old it is.

Melissa King began writing in 2001. She spent three years writing for her local newspaper, “The Colt,” writing editorials, news stories, product reviews and entertainment pieces. She is also the owner and operator of Howbert Freelance Writing. King holds an Associate of Arts in communications from Tarrant County College.

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.

Oil of lemon eucalyptus or PMD

These similar oils are found in sprays like Repel and Off Botanicals. The synthesized version of OLE is called PMD, which stands for para-menthane-3,8-diol. Repellents with this active ingredient are stable for long periods and probably wont have an expiration date on the bottle. Repel is the most popular brand using OLE. Youll also find it in the Murphys Naturals bug spray.

Does 3M Ultrathon insect repellent expire?

Ultrathon Insect Repellent Expiration Date


The majority of popular bug-spray brands, such as Off, contain N,N-diethyltoluamide, more commonly referred to as DEET, as their active ingredient. DEET doesnt expire. This chemical is quite stable and has a long shelf life, Zwiebel says.


How long is Ultrathon good for?

The Ultrathon Insect Repellent Lotion delivers up to 12 hours of powerful protection from biting insects, including mosquitos, with innovative 3M Time-Release Technology.

How do you know if bug spray is expired?

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

What happens if you use expired mosquito repellent?

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.

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