22 essential vitamins & minerals, specifically designed to balance the recipes in the "Complete & Balanced" cookbook by Hilary Watson or formulate your own recipes using the free software at www.hilarysblend.ca 100% fit for human consumption. 100% active, no fillers, no preservatives, no additives. Hypoallergenic, no proteins or allergens, suitable for dogs with allergies. One 350g jar will last a 40lb dog about a month.