Magnesium Chloride Liquid

Concentrated topical magnesium chloride to relieve muscle pain and more.


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Naturally Sourced Concentrated Seawater

Topical Magnesium Chloride

  • Relaxes tense muscles
  • Eases aches and pains
  • Softens and smoothes skin
  • Helps with restless legs
  • Treats magnesium-deficiency
  • Highly absorbable


MagTherapy Magnesium Chloride Liquid is absorbed through the skin, delivering magnesium directly to cells. It's a highly absorbable form of transdermal magnesium.

Also known as "magnesium oil" for its silky texture, magnesium chloride provides relief from muscle tension, spasms, cramps, aches and pains - and it softens skin!

Use following a workout, to release tension after a long day or anytime you experience symptoms of magnesium deficiency. 

Note that MagTherapy Liquid is our full-strength product. For pre-diluted topical magnesium, see our MagTherapy Spray or MagTherapy Gel.

Magnesium absorbed through the skin is fast and effective.

Directions for Use:

Pour 30 ml (2 tbsp) of magnesium liquid into a tub or foot bath.

Dilute with water or a skin-friendly oil when applying directly to the skin, to test for sensitivity. Rub diluted product into muscles.

Hot Compress:  Apply Magnesium Chloride Liquid to an area of pain or tension. Take a small towel and wet it in hot water (as hot as comfortable). Place over sore area and allow the heat of the compress to drive the magnesium into the skin. When the compress cools, repeat.

Ingredients:  Each 1ml of seawater contains 450mg of magnesium chloride. Potency equivalent: 120mg

Contains no fragrance, preservatives or added ingredients.

Cautions and Warnings:   For external use only.  Keep away from the eyes.  Full-strength on the skin may cause redness, rash and irritation.  Dilute to half-strength with pure water or a skin-friendly oil.

Health Canada Natural Product Licence Number:  80038257

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11 reviews for Magnesium Chloride Liquid

  1. John Halbert

    “I used Magnesium Liquid on my legs, hips and lower back when training for my first marathon at the age of 48. The difference it made was significant. It helped my sore, tight muscles to relax after my training runs so that I could go out again the next day. I have no doubt I would not have been able to complete the marathon if it was not for using the oil to help me recover each day. Great product!”
    John Halbert

  2. Rachel Taylor

    “I’m absolutely amazed at how well the Magnesium Liquid works when I have any issues with my muscles. Having back and neck issues, getting a massage with the spray instead of any other oil really reduces the pain factor the next day. Once again, THANK YOU!”

  3. Phyllis

    Just wondering: how do I store the magnesium once the bottle is opened. As well, you recommend 1:1 dilution however, the directions indicate 1:19 with 1 ml magnesium liquid to 19 ml of water. Which one is correct? Do I massage the entire solution of 1:19? Is this a recommended treatment for afib?

    • Anna O’Byrne

      Hi Phyllis,

      You can store the liquid mag at room temp.

      The directions indicate 1:19 because that’s what we’re required to recommend on the label. However, that dilution is quite extreme unless you’re adding it to a bath. Most people find 1:1 perfect and some people (with insensitive skin) apply it directly, undiluted! Sorry for the confusing directions. Our hands are somewhat tied on labelling. The good news is that there’s quite a bit of flexibility in how you use it.

      As for afib, naturally we can’t give medical advice on individual situations, but we do have customers who tell us Natural Calm magnesium taken orally has helped their heart conditions, including irregular heartbeat.

      Thank you,


  4. Gerald Filipski

    This liquid has saved my life. I could not absorb magnesium through oral supplements but by rubbing magnesium chloride on my arms and legs twice a day I am now maintaining normal levels of magnesium in my system! Thank you Natural Calm!

    • Anna O’Byrne

      Gerald, thank you so much for sharing your story! We appreciate it and hope it will help others as well.

  5. Norma Frenette

    I use magnasium chloride that I rub on my legs and arms,it is very good for leg cramps. I use to have them almost every night ,being using that for over 2 years ,very rarely have one .l wound,nt be without it….

  6. Violet

    The directions say to “dilute with water or a skin-friendly oil when applying directly to the skin.” Can I also combine it with my regular moisturizing lotion (for example, I use St. Ives hand and body lotion)? Would it still be just as effective?

    • Anna O’Byrne

      Hi Violet,

      Absolutely, you can dilute it with any moisturizing product at all. We’ve had success mixing it with oil but let us know how you like it with moisturizer!


  7. Tina

    Can it be mixed in a roller ball with fractionated coconut oil? If so, what ratio should I use?

    • Anna O’Byrne

      Hi Tina,

      Yes, the liquid magnesium chloride can be mixed with any skin-friendly oil. The ratio depends on your personal comfort – try about 50:50 to start. If your roller ball dispenses liquids and if the coconut oil doesn’t block the mechanism, it could very well work.

      Thank you,


  8. Erin

    It makes my muscles feel much better within minutes. I use it for chronic muscle pain, and I love that it’s natural and something your body needs anyway.

  9. Bev T

    I cannot take some magnesium tablets orally because of my ostomy bag and found both the spray and the gel at a local store. I will be starting to use your product and I am looking forward to the day I do not need my weekly magnesium infusions, maybe monthly infusions. I will let you know how I do.

  10. Ann

    Can you please tell me the best one to buy for the bath for a toddler 2 and a half years old with autism to help him sleep he is not on any medication

    • Anna Bolton O’Byrne

      Hi Ann, I’m sorry for the delay. You can put MagTherapy Liquid in the bath for your child – a footbath is great. You can also rub the MagTherapy Balm on his body. If he feels a tingle (mag chloride is a salt – so it’s a bit like being in salt water), you can dilute the footbath or add additional coconut oil to the MagTherapy Balm. The spray is great as well – very easy to use. It’s really your preference!

  11. Candice

    Can I mix in lotion and use it over time or do I have to mix it fresh each application?

    • Chad Shears

      Hi, you should be able to mix it into lotion as it doesn’t degrade in strength

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