Optibac Probiotics Kids Drops contain 1 billion probiotic bacteria of the Bifidobacterium breve M-16V strain per serving (8 drops). It has been clinically tested on thousands of children and has been shown to support digestion and immune system health. Why should I choose it? Contains the probiotic strain B. breve M-16V, which has been shown to support digestion and immune system health. It survives the acidity of the stomach and reaches the intestine alive, helping to maintain the balance of intestinal flora. It is vegan, gluten-free, with no added sugars, artificial flavors or colors. It is ideal for colic and reflux.Instructions: For children: 8 drops per day. Ingredients: Bifidobacterium breve M-16V; medium chain triglyceride oil (vegetable source). Emulsifier: mono- and diglycerides of fatty acids (vegetable source).