Richard's Organics Flea and Tick Dog Shampoo naturally kills fleas and ticks repels mosquitos and soothes irritated skin. Formulated with 5 essential oils and Vitamin E the 100% natural active ingredients in our dog flea shampoo are proven to kill fleas and ticks naturally. Cinnamon clove cedar wood peppermint and rosemary oils and soothing moisturizers Vitamin E Lanolin and Lecithin combine to rid your dog of fleas and ticks and soothe irritated skin from excessive scratching licking and biting. The tick and flea shampoo for dogs is safe for use on pets over 12 weeks old.