Smart Lice Comb 2-sided is used to control lice and fleas. It is recommended that you comb through the coat to remove tangles before using the lice comb.Comb through the coat from the skin to the tips and out in the direction of hair growth, and the comb will catch lice and fleas. If you find impurities in the fur, place them on a damp, light-colored paper towel. Facts about Smart Lice Comb 2-sided: For the control of lice and fleas. Without chemicals. Comb the coat free of tangles before using the lice comb.