Liquid-Vet K9 Pre & PostBiotic Support Formulas contain a proprietary blend of active ingredients that include high levels of Collagen, Inulin, and Galacto-oligosaccharides as well as Antioxidants found in pumpkin to ensure that your dog has a balanced digestive tract. In addition, with less risk of stomach upset and questionable shelf-life (typical with other brands containing live bacteria probiotics), you can be sure that your dog is getting the safest and best digestive support on the market. Liquid-Vet formulas are TASTIER, EASIER TO USE, and FASTER than standard pills, powders, or chews and are the ONLY products available in a choice of natural flavors for picky pets or those pets that may have allergies to specific proteins. Simply dose once a day during meal time with no hiding in cheese or those pill pockets full of chemicals and other unnecessary ingredients. It's that EASY!