Pure magnesium bath flakes with energising essential oils BetterYou Magnesium Muscle Flakes contain a highly concentrated form of 100% natural, Zechstein magnesium chloride (47%). BetterYou Zechstein magnesium chloride comes from a natural source, deep inside the Earth’s crust. It has been protected from man-made pollutants for over 250 million years, ensuring its quality and purity. An essential part of any post-workout routine, the intense muscle relaxation experienced when using BetterYou Magnesium Muscle Flakes is second-to-none. Bath Add 250g Magnesium Muscle Flakes (roughly 2 cups) per bath. Lie back and relax for 20 minutes. Increase amount for a more intensive experience. Footbath Add 150g Magnesium Muscle Flakes (roughly 1 cup) to approx. 5 litres of water, enough to cover feet. Sit and relax for 20 minutes. For external use only; Avoid contact with eyes; Do not use on damaged or broken skin.