Nourish your sleep and body with Napiers Muscle and Sleep Magnesium cream. The majority of the population in the UK are magnesium depleted. Our Magnesium cream allows natural elemental magnesium to be absorbed directly through our skin. Muscles need magnesium to function properly and Napiers cream allows magnesium to be applied topically for maximum benefit. Studies have also shown that magnesium application can improve both sleep quality and duration. This all natural cream utilises ultra pure Zechstein magnesium chloride, delivering 500mg of magnesium chloride per 5ml usage (providing 60mg elemental magnesium). Zechstein magnesium is harvested from a primordial sea over 250 million years old and untouched by human activity and pollution.