Do Magnesium Body Sprays Really Work?

If you’re among the many interested in increasing your magnesium consumption, you might be considering adding a magnesium body spray to your routine. It’s hard to resist, especially with claims of better sleep and reduced stress just a spray away—making it one of the most appealing products since ear seeding for cortisol reduction.

Magnesium body sprays are topical formulations that contain—surprise—magnesium. Their intended effects include alleviating muscle tension, enhancing sleep quality, and providing relaxation by delivering the mineral transdermally. “They are marketed as a method to boost magnesium levels in the body without the need for oral supplements,” states Krupa Koestline, founder and chief cosmetic chemist of KKT Labs.

According to Koestline, these sprays primarily comprise magnesium chloride hexahydrate, often referred to as “magnesium oil,” and are mixed with water. Most formulations contain 20% to 35% of this magnesium chloride solution. Some may also incorporate humectants such as glycerin and soothing agents to counteract the potential dryness and tackiness associated with magnesium oil.

Many of us appear to be experiencing magnesium deficiency. Research indicates that 2.5% to 15% of the U.S. population currently falls short in terms of magnesium intake. Dr. Amanda Kahn, a board-certified internist and longevity expert, notes that magnesium deficiencies are prevalent and suggests factors like modern diets lacking in magnesium-rich foods, chronic stress, and certain medications, such as birth control pills, may contribute to this issue. This is where magnesium body sprays are believed to be beneficial. However, can you actually enhance your sleep by simply spraying it on?

Do They Really Work?

The answer is yes, but only to a degree. Dr. Kahn mentions that while some magnesium can indeed be absorbed, the absorption rate can vary, making it difficult to ascertain whether it functions as advertised. The skin effectively serves as a barrier, and Koestline adds that magnesium ions are significantly large and highly hydrated, which makes them less effective at penetrating the upper layer of the skin. There are limited studies that indicate topical application of magnesium can elevate magnesium levels within the epidermis, but additional research is needed to determine if it is as effective as oral supplementation.

<p“From a scientific perspective, these sprays act more like mineral salt sprays with localized sensory effects (cooling, soothing, hydrating), rather than as a verifiable systemic delivery method,” Koestline explains.

The Most Effective Way to Use a Magnesium Spray

Don’t feel the need to entirely discard magnesium sprays. The optimal approach is to use them alongside any oral magnesium intake. “Sprays are a beneficial complement, not a substitute,” she advises. “I recommend starting with oral magnesium as your base, and then using sprays when you desire extra muscle relaxation or a calming nighttime ritual.”