From the makers of the ThunderShirt, ThunderWunders Calming Chews are vet recommended and promote rest & relaxation for your dog. These chews are packed full of L-tryptophan, thiamine, ginger and chamomile to help dogs relax in situations that may cause them stress such as home alone, travel, loud noises, vet visits, groomer, boarding and general stress & anxiety. Easy to give calming chews that dogs love Natural ingredients including chamomile, L-tryptophan, ginger & thiamine Veterinarian-recommended Can be used in conjunction with a Thundershirt The calming ingredients of Thunder Wunders: L-tryptophan: Helps increase serotonin levels, regulating mood and promoting feelings of calm Chamomile: Helps relax muscles and relieve anxiety Ginger: Ginger may also help to increase comfort, acting as a natural anti-inflammatory Thiamine: Also known as Vitamin B1, thiamine is an essential vitamin in your dog’s diet. It plays an integral role in organ health and helps to promote motor function in your dog