Bug sprays that contain DEET will not expire, but they may become less effective over time. The same is true for most, but not all, bug repellent.
Medically reviewed by Kristie Reed, PharmD Taking expired medications might make them less effective for treating conditions.Proper storage can extend a medication's effectiveness past the expiration ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback