Epsom salt is actually magnesium sulfate, a pure, time-tested mineral compound with dozens of uses. It provides temporary relief of muscular aches and stiffness of joints and as a laxative. It soothes away the day’s stress. Relieves tired aching joints. Features: 1 x Pharmacy Care Epsom Salts 375g Treats sunburn Removes splinters Can be used as fertiliser Active ingredient: Magnesium sulfate Warnings Always read the label. Follow the directions for use. If symptoms persist, talk to your healthcare professional. Instructions Dissolve 375g in an average size bath of warm water. As a laxative:Dissolve 5 to 15g (15g = 2 level teaspoons) in a glass of water, followed by another glass of water, preferably before breakfast., Dissolve 375g in an average size bath of warm water. As a laxative: Dissolve 5 to 15g (15g = 2 level teaspoons) in a glass of water, followed by another glass of water, preferably before breakfast.