designed specifically for anxiety & to promote calming, easy to give due to its delicious beef & liver flavour, a great blend of key nutrients known for their calming properties, easy to add whole or crumble into moist food just like humans, dogs can suffer from stress & anxiety now & then. pets are sometimes bothered by changes in routine or environment. they can also become stressed or over excited by situations such as storms, fireworks or travel. this is why it`s so important to have a great product you can turn to which helps promote a feeling of calm & well-being during these times., with b vitamins renowned for their nervous system support, magnesium, for normal muscle/nerve function, extracts of passionflower & lemon balm, two well-known, l-tryptophan, an essential amino acid for its calming properties happi-tails is recommended for all dogs of all ages, sizes & breeds. please note dosage information for size of dog.