Veterinary Formula Advanced Oatmeal & Tea Tree Oil Shampoo provides gentle cleansing and effective anti-bacterial healing with natural tree tea oil and colloidal oatmeal. Colloidal Oatmeal is a premium natural moisturizer that provides soothing relief to dry, flaky, or itchy and irritated skin. Medicinal Tea Tree Oil (natural Melaleuca Alternafolia) is proven effective against bacterial and fungal infections. Helps calm the sting and itch of insect bites. Contains no artificial fragrances or harsh chemicals. Paraben free and pH balanced. Only for dogs. Not safe for cats due to its tea tree oil content.