Most formulations use lemon eucalyptus oil (listed as Lemon Eucalyptus Oil or Eucalyptus Oil) as the primary active ingredient. Some plant-based options instead use actives such as geraniol, sometimes combined with small amounts of rosemary oil or lemongrass oil.
Reported protection times commonly hover around 4 hours, and some lemon-eucalyptus formulas advertise up to 6 hours. Actual duration can vary by formulation and real-world conditions.
They are primarily marketed for mosquitoes, ticks, and other flying insects. User reviews also sometimes report effectiveness against fleas, though that is anecdotal.
Sizes range from travel/mini bottles to multi-ounce sprays. Examples found in listings include 4 fl oz bottles and travel packs with two 50 mL (about 1.69 fl oz) bottles.
Reviews commonly praise a pleasant, fresh citrusy scent and report that sprays apply evenly, dry quickly, and generally do not feel sticky for many users.