NWC Naturals Total-Digestion Mini-twin Pack Total-Zymes, Total-Biotics Each Jar Treats 100 Cups of Food Vet recommended and top Show Dogs use the Total-Digestion Mini-Twin Pack. Top seller for over nine years. America's rated #1 for healthy pets. Total-Zymes utilizing NOW 16 high performance vegetarian enzymes. New Total-Biotics now with 14 strains and double the probiotics; an average serving now has 2 Billion CFU's. Formulated and bottled in the USA. Our powders do not contain any, chemicals, gluten, soy, yeast also wheat free, no preservatives, no artificial coloring or flavoring.