Hi.. it's made up of vitamins, minerals, micronutrients, micro-organisms and antioxidents.. its great. The container reads as follows:
Dogs and cats should benefit from regular daily use of SA-37 either as a tablet or powder mixed with their food.
It helps to ensure that they get a correctly balanced supply of the essential nutrients needed to keep them in good condition , with handsome coats and healthy skins. All you need is 1/4 - 1 teaspoon of it mixed in with their normal meals once a day. My cat has 1/4 teaspoon daily. I swear by it, my vet recommended it to me. You can buy it online or from yer vets. My 200g container has lasted for ages!!