Hartz UltraGuard 18 oz Citrus Flea & Tick Shampoo is a cleansing shampoo that effectively kills fleas & ticks. For Use On Puppies 6 Months Or Older. A cleansing shampoo treatment with Pyrethrin s that kills fleas and ticks including the Deer Tick which may carry Lyme disease . Beautifies freshens cleans and deodorizes your dog. Easy grip bottle. Unique citrus scented. 18 fl oz