Coconut Pumpkin Flavor. Organic chamomile, valerian root, and L-Tryph have been found to support calming of the nervous system, promote relaxation, and boost the production of dopamine, serotonin, and melatonin. From Green Gruff: Nourishing dogs inside and out is at the core of every formula we develop. We use wholesome, organic and sustainable ingredients to provide them with the amino acids, omega-3 fatty acids, antioxidants, vitamins and minerals that are essential for optimal health.