What is magnesium chloride

Magnesium chloride is a chemical compound composed of magnesium and chlorine. It is a type of salt that is highly soluble in water and is often used for various industrial, medical and dietary purposes. Here are some key points about magnesium chloride:


Magnesium chloride


  • Chemical Structure: Magnesium chloride is composed of one magnesium (Mg) atom and two chlorine (Cl) atoms, resulting in the chemical formula MgCl2.

  • Natural Occurrence: Magnesium chloride can be found naturally in some mineral deposits and brine sources. It is also present in sea water.

  • Industrial Uses: Magnesium chloride has many industrial applications. It is used as a de-icing agent for roads in cold climates, as it helps lower the freezing point of water and prevent ice formation. It is also used in the production of magnesium metal and various chemicals.

  • Medical Use: Magnesium chloride may be used in medical settings, such as in intravenous (IV) treatment to address magnesium deficiency or certain medical conditions. It can also be used in topical applications or foot soaks to help reduce muscle spasms and pain.

  • Dietary supplement: Magnesium chloride is sometimes used as a dietary supplement to provide magnesium, an essential mineral that plays an important role in a variety of bodily functions, including muscle function, nerve transmission, and bone health.

  • Health and wellness: Some people use magnesium chloride for health purposes, including as an ingredient in magnesium oil or lotions applied topically to the skin. However, the absorption of magnesium through the skin (transdermal absorption) is a subject of ongoing research and discussion.

  • Form: Magnesium chloride supplements can come in a variety of forms including powders, tablets, capsules and liquid solutions.

  • Potential side effects: While magnesium is an essential mineral, excessive intake of supplements can lead to gastrointestinal symptoms such as diarrhea, nausea and abdominal cramps. It is important to follow the recommended dosage and consult with a healthcare professional before using magnesium chloride supplements.

  • Counseling: Before using magnesium chloride supplements, especially for medical or health-related purposes, it is advisable to consult with a healthcare provider. They can help determine whether supplementation is necessary and guide you on the proper dosage.


If you're considering magnesium chloride supplementation, always be sure to choose high-quality supplements from reputable brands. As with any dietary or health-related decision, it is best to consult a medical professional to ensure that it is safe and appropriate for your individual needs and circumstances.

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