The electrolytes magnesium, calcium and potassium are important for maintaining healthy muscle contractile function. In several trials, magnesium supported leg muscle comfort by helping to lessen occasional nighttime cramping while relieving occasional sleeplessness. The traditionally soothing botanicals lemon balm, passion flower and chamomile also help to relieve occasional muscle tension. Additionally, these herbal extracts moderate occasional stress and promote overall relaxation. Muscle Cramp/Tension Formula offers important electrolytes and soothing herbs to help lessen occasional nighttime or exercise-related leg muscle cramps and ease muscle tension while promoting overall relaxation.