Why Dextrex Juice? Dextrex Juice® is a well-conceived complex of pharmaceutical-grade dextrose, micronised taurine and a considerable amount of magnesium. The entire formula facilitates the optimisation of creatine activity, as well as bringing other benefits. Adding creatine to a diet can, for instance, increase the pace of ATP regeneration in muscle cells and as a result facilitate the growth of both strength and muscle mass. When using Dextrex Juice®, you can be certain that you are getting its optimal effects.