Grb10 (growth factor receptor-bound protein 10) has been known about for quite a while now and is available in many supplements, but until recently it’s potential was not known, or rather it’s control of your potential. Its been referred to as the Hulk Protein, but it turns out that it might not be the magic muscle protein, it might me the Whimp Protein.
Research suggests that this grb10 gene is responsible for the control of muscle growth, ensuring muscles grow only as required, in response to consistent heavy work loads.