Hartz Shampoos and Sprays Kills fleas, flea eggs and brown dog ticks plus prevents re-infestation for up to 2 weeks Includes one, 18 fluid ounce bottle Deep conditioning formula with coconut oil intensely moisturizes your dog's skin and softens his/her coat Can be used weekly for preventative treatment, while cleaning and deodorizing For dogs and puppies 6 months of age and older