Muscle-building powder is for thin people. The content of protein in muscle-building powder is about 30%, and others contain carbohydrates and other substances. The protein content of protein powder is higher than 80%, and it basically contains no other substances. Choose one of these two, you can choose either one,170,60, because it is mainly absorption, and the absorption of protein also needs the cooperation of carbohydrates. If creatine is supplemented, protein powder may be better, because creatine contains substances that can open muscle tissue to absorb protein, so protein powder should be taken with creatine within 30 minutes after exercise. In addition, domestic brands are carefully selected. You think milk powder is the lowest standard in the world.