Question: is hartz flea shampoo safe for dogs?
Answer: Dangers of Hartz Flea & Tick Shampoo. ... If left untreated, fleas and ticks can cause a host of problems to the dog or cat, such as flea allergy, tapeworm, dermatitis and flea anemia. However, some users of Hartz Flea and Tick shampoo have reported various adverse reactions to the product.