Muscle Core X Review - The important ingredients that are present in muscle core x are A-AKG, A-KIC, OKG and GKG. A-AKG will ensure the production of nitric oxide in the body. This will ensure that muscles will get the required amount of oxygen. A-KIC will increase the strength and stamina of a person. OKG stimulates to build the body muscle. GKG will let your muscle absorb in a great way. If you are focused on building the muscle to the core, it can be achieved through muscle core x.