ASSURITY contains the active ingredient spinetoram, in the family spinosyn, and its low-volume dose is effective for all cats and gentle enough for kittens 8 weeks of age and older. ASSURITY starts working in 30 minutes, killing fleas quickly on contact by targeting the fleas’ nervous systems, resulting in paralysis and rapid death. ASSURITY kills 98–100% of fleas within 12 hours - before they lay eggs - and continues killing fleas for a full month after application.

2.) Hold the applicator tube in an upright position.

3.) Press cap down until it clicks, indicating that the tube has been punctured. Hold upright and remove cap. Check to be sure there is an opening at the tip of the tube.

4.) Part the hair on the neck at the base of your cat's head until the skin is visible. Place the tip of the tube directly above the skin and squeeze the tube 2–4 times to expel the contents of the tube directly on the skin. Treatment at the base of the head will minimize the opportunity for the cat to directly lick the product.

Note: Avoid getting the product in your pet's eyes or mouth. There might be a residual amount of the product remaining in the tube after a full dose is expelled.