Tylactin Restore 10, Citrus, 170 Calories Each. For The Dietary Management of Tyrosinemia (TYR). Tylactin Restore is a Metabolic Formula for TYR Patients, Ages One Year and Older, in the Form of a Great Tasting Hydration Beverage. Each 500mL Serving Contains 10 Grams of Tylactin Protein and Comes Ready To Drink in a Clear, Recyclable Bottle.