Magnesium Gel is half the strength of Magnesium Chloride Liquid (Oil) & consists of magnesium chloride combined with Amigel® for easy application onto the skin. Amigel serves as a transfer agent to help the magnesium be absorbed through the skin & also as a lubricant facilitating the massage of tired, stiff or sore muscles. Provides measurable relief from muscle tension, muscle ache & muscle pain resulting from magnesium deficiency. Each 8oz (237ml) bottle of Transdermal Magnesium Chloride Gel is estimated to deliver 60 mg of magnesium per undiluted milliliter.