Dr. Harvey's Relax Stress and Tension Supplement is a wonderful, all natural, supplement for calming your pet without any harmful side effects. Dr. Harvey has formulated each of his whole food and herbal supplements to enhance the health of companion animals. Each formula uses a specific mixture of organic and wild crafted herbs to help animals find balance and wellness. These powdered formulas are based on Dr. Harvey's extensive knowledge of how each herb stimulates the body and how they work synergistically to optimize the effect that each herb has on the other. Herbs also contain many minerals and vitamins that promote health and healing. 8 oz. Jar. Dr. Harvey's whole food supplements are formulated using 100% Human Consumption ingredients and provide the nutritional components that might be missing in your pet's diet.