Starts killing fleas in 30 minutes. Kills 100% of fleas within 12 hours in a controlled study. More than 99% flea control for a full month. Kills fleas before they can lay eggs. This product is made by Elanco Animal Health.

 

Spinetoram (11.2%) . The active ingredient in Cheristin is spinetoram, registered in 2007 for use on a variety of fruits and tree nuts. The introduction of spinetoram for use in agriculture resulted in the receipt of a Presidential Green Chemistry Award3 in 2008. The award was presented to Dow AgroSciences LLC. In the context of agricultural use, spinetoram has a lower environmental impact than do many current insecticides because both its use rate and toxicity to non-target species is low.

 

Part hair on the neck at the base of the head and apply the contents of the applicator tube to a single spot on the skin of the cat. Do not apply to the surface of the can'ts hair coat. One low-volume dose treats cats of all sizes weighing 1.8 lbs or more. One applicator tube contains 0.026 fl oz (0.77 ml).

Do not use on kittens less than 8 weeks of age or weighing less than 1.8 pounds. Keep out of reach of children. Harmful if swallowed. Causes moderate eye irritation. Wash thoroughly with soap and water after handling and before eating, chewing gum, using tobacco, or using the toilet. Avoid contact with eyes and clothing.