This variety of Catnip oil is our highest quality Catnip with approximately 80% nepetalactone. Nepetalactone is a natural constituent that's said to be a great defense against mosquitoes, ticks, and other insects. Catnip oil has an earthy, harsh, strong aroma. Initially it might be described as quite herbal, however, as it evolves it becomes less harsh and more sweet and grassy, much like a sweet hay with tobacco undertones. It's important to note that, unless diluted correctly, it's best to avoid use of the Catnip oil on or around cats due to its potency and potential to overwhelm the animal.