Question by  pinkhorse (1)

Does DEET have an expiration date?


Answer by  jmclarke (11)

No, DEET does not expire, so you should be able to use it no matter how old the product is that contains it unless otherwise indicated by the manufacturer.


Answer by  amswplusone (652)

DEET is a very stable compound and deteriorates at a negligible rate; it breaks down so slowly that it doesn't require an expiration date. Basically it's good roughly forever.

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