Muscle Cramp Relief Formulation is a unique blend of calming herbs and minerals, along with a scientifically designed formulation of potassium for optimal potency and absorption, designed to support healthy muscle relaxation, reduction of cramping or spasm, while the potassium may also support healthy blood pressure regulation, cellular function, and reduce risk of kidney stone formation. A full 40 day supply, plus an additional 80 day supply of K+2 Potassium.