Bobbi Panter Products presents Charlie Dog Flea and Tick Shampoo. Formulated to naturally kill fleas, ticks, lice, mosquitoes and more, the shampoo contains clove oil, lavender oil, cedarwood oil and citronella. It’s safe for puppies and kittens of all ages and won’t wash off topical flea remedies, the company reports. The product is available in 10 oz. and gallon sizes.