Posted 12 March 2018
From the highly trusted, ConsumerLab
Topical magnesium products such as MagPro, Fibro Flex and BetterYou are often promoted as easy, effective ways to get magnesium and to reduce muscle pain and cramps, improve flexibility, and promote relaxation and sleep. However, there is little reliable clinical evidence showing these products are effective and topical magnesium products may cause skin irritation, itching and rash. This is discussed in the Magnesium Creams, Sprays and Oils section of the Magnesium Supplements Review.
Be aware that some companies claim this irritation is a sign of magnesium deficiency, but this is not scientifically supported.
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