GUBI ticks & fleas is a class IV shampoo(Toxicity category IV for pesticide means practically non-toxic and not anirritant). It is extremely effective against ticks & fleas for your dog.This shampoo will not harm the dog or you, if instruction is followed at theback of the bottle. DO NOT USE THIS AS A REGULAR SHAMPOO Very effective as itkills not only ticks, lice & flea but also its eggs! Does not harm your pets fur & skin. Active Ingredients: d-phenothrin 0.40% Size: 500 ml