The best option for your furry friend is to buy animal shampoo or conditioner according to their skin and hair type. Also, consider if the pet has any skin disease or sensitivity. Some of the best possible options available in the market include Earthbath All-Natural Pet Shampoo, Paws & Pals Natural Dog-Shampoo and Conditioner, and Fresh’n Clean Scented Shampoo. Meanwhile, you can also consider buying Wahl’s Tick and Flea Shampoo for dogs or Pro Pet Works Natural Oatmeal animal Shampoo + Conditioner and many others.