It is potentially dangerous to use essential oils on cats for several reasons. Cats differ greatly from dogs in how they metabolize and excrete certain substances from their bodies. Cats do not have the necessary enzymes to break down certain substances and effectively excrete them. This leads to the build up of toxins in their bodies, especially their livers.
Cats are particularly sensitive to certain essential oil components. Essential oils with their myriad of chemical constituents are all highly individual. Cats are adversely affected by certain essential oil components known as phenols and ketones. These constituents have been discovered to cause the most adverse effects.
Due to the extremely sensitive metabolic functions of cats and their inability to fully excrete toxins, which then stay in their bodies, resulting in permanently elevated enzyme levels and varying degrees of impaired liver function, Earth Pets do not produce Essential Oils for cats.