Swisse Magnesium is a premium quality formula containing a bioavailable form of magnesium to reduce muscle cramps, support a healthy immune system and help relieve premenstrual syndrome symptoms. Magnesium supports healthy muscle contraction, assisting with cramps and spasms. Magnesium also helps the body metabolise food into energy and therefore help with cellular energy production. Magnesium is also clinically proven to relieve PMS symptoms such as stress, water retention and pain. For general use take one tablet daily. For Premenstrual relief take three tablets daily. Take during or immediately after a meal. If symptoms persist consult your healthcare professional. Also available in 120 tablets.