Magnesium is a vital mineral worth getting plenty of from natural sources. It strengthens bone structure, supports a healthy heart, plays a key role in nerve function, and helps regulate blood pressure. It eases stress and anxiety and even supports your immune system by boosting your body’s energy supply. Recently, magnesium spray—applied directly to the skin—has gained attention. I dug into what science says and how much of this new craze holds up!
Pain Relief and Better Sleep Support
Some athletes use magnesium oil spray to ease muscle soreness, believing it helps muscles recover faster and reduces pain after workouts. But so far, research hasn’t confirmed these effects.
Dr. Joaquin Villegas, family physician and assistant professor at UTHealth Houston McGovern Medical School, says that while the spray may somewhat block pain receptors, there isn’t enough data yet to fully understand its role in pain relief.
Another claim is that magnesium applied locally might help restless leg syndrome, characterized by involuntary leg twitches during sleep. The idea is that magnesium calms anxious feelings linked to this condition and helps muscles relax.
Magnesium is indeed an effective muscle relaxant that can reduce involuntary and uncomfortable limb movements, improving sleep quality. However, this applies only to oral supplements; no studies have yet confirmed the benefits of spray applied to the skin.
While many TikTok creators swear by magnesium oil spray—saying massaging it into the skin helps you fall asleep almost instantly—researchers remain skeptical. There’s currently not enough scientific proof that spraying it on the skin truly improves sleep quality.
What About Headaches and Migraines?
It’s clear that magnesium deficiency can contribute to tension and headaches, even migraines. Oral magnesium supplements may ease these issues. Low magnesium levels are linked to narrowing of brain blood vessels, which researchers believe is a key migraine trigger. However, the effects of magnesium oil spray on headaches and migraines haven’t been studied scientifically, so we don’t know if it helps.
Some people use magnesium oil to support skin health. Many big cosmetic brands claim their magnesium products soothe irritated skin and help prevent premature aging, but research hasn’t fully backed these claims yet.
“I think often it’s not the magnesium itself working, but rather what creams or moisturizers it’s combined with that help the skin,” says Dr. Villegas.
The skin can absorb some magnesium since certain substances pass through pores and hair follicles. That’s why magnesium-based deodorants exist—they help reduce odor and sweating at the same time.
If you suspect magnesium deficiency and want to try magnesium oil spray for a specific health concern, always check with your doctor first. When trying magnesium spray, test a small skin area to avoid irritation or allergic reactions. Science may reveal more benefits of topical magnesium in the future, as experts haven’t ruled out its positive effects. For now, though, there’s little evidence that this method can reliably provide your daily recommended magnesium intake.
