The Proven Insect Repellent Spray proved to be a winner during our user testing. The bottle boasts a quick and easy spray (itâs also one of the most portable bottles), and users noted its near complete lack of scent. Even with its wide coverage, Proven was nice and light to the point we barely felt it on our skin. While you might forget youâre wearing it, though, bugs wonât. We found in our research (and the experts agreed) that the active ingredient picaridin â Provenâs active ingredient comprising 20% of its formula â is one of the best at repelling bugs.