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 loveNatural ingredients including chamomile, L-tryptophan, ginger & thiamineVeterinarian-recommendedCan be used in conjunction with a ThundershirtThe calming ingredients of Thunder Wunders:L-tryptophan: Helps increase serotonin levels, regulating mood and promoting feelings of calmChamomile: Helps relax muscles and relieve anxietyGinger: Ginger may also help to increase comfort, acting as a natural anti-inflammatoryThiamine: Also known as Vitamin B1, thiamine is an essential vitamin in your dogs diet. It plays an integral role in organ health and helps to promote motor function in your dog