Similac Sensitive Concentrated Liquid, 13 oz, Unflavored, 20 Calories per fluid ounce.A 20 calorie per fluid ounce, nutritionally complete infant feeding that is an alternative to standard milk-based formulas. Complete nutrition for fussiness, gas, or mild spit-up. Suitable for infants with lactose sensitivity. Gluten-free, halal, kosher and made with dairy ingredients.