Vet’s Best Comfort Calm supplement for dogs helps ease and reduce anxiety and tension from everyday stresses. Vet's Best calming aid uses a soothing blend of Tryptophan, Valerian Root and other premium quality ingredients to promote relaxation and balanced behavior without drowsiness. Helps to reduce the effects of environmental stress in dogs exhibiting signs of nervousness, hyperactivity or discontentment. Provides comfort for common stressors such as: fireworks, thunderstorms, hyperactivity, boarding, loud noises, environmental stress, separation anxiety, grooming and travel. Nothing added - contains no artificial flavors, colors or preservatives; Tablets can be easily broken into little pieces for smaller or fussy dogs.