HomePrice per 100g. Please select desired quanity. 100g - 19c1kg - $2.46Epsom SaltsSKU: 10166$0.19PriceQuantityAdd to CartIngredientsEpsom Salts (Magnesium Sulphate BP) Description Origin - China How to UseAdd 500 grams of Epsom salt to the water in a standard-sized bathtub and soak your body for at least 15 minutes. You can also put the Epsom salt under running water if you want it to dissolve more quickly.