Ancient Minerals Ultra Magnesium Gel with MSM combines the healing power of magnesium chloride that is sourced from the Ancient Zechstein Seabed in Northern Europe, combined with biologically active, certified organic aloe vera extract (ACTIValoe®) and premium distilled MSM (OptiMSM®). MSM (Methylsulfonylmethane) is a naturally occurring compound with the ability to assist the uptake of magnesium and is also recognised as an aid to managing pain, mobilising joints and reducing inflammation. designed to enable the sustained release of magnesium chloride into the skin and enhance its absorption into the cells. MSM Transdermal Magnesium is unique because it is delivered through the skin and therefore directly available to muscular systems that require magnesium to function.