Rule 1 Casein is a premium-quality, slow-digesting casein protein powder that provides sustained energy and supports muscle growth and recovery. It is made from 100% micellar casein, which has been shown to be the most digestible form of this nutrient. Rule 1 Casein protein mixes easily with liquids and delivers a steady stream of amino acids to your muscles for up to seven hours. This makes it perfect for athletes who want to refuel after a workout or those who need sustained energy throughout the day. R1 Casein is also low in lactose and fat, so it is easy on your stomach. If you are after the best casein price in Pakistan, Fitflex is the best choice for you!