Transdermal Magnesium: Does It Really Absorb Through the Skin?

Magnesium sprays, oils, and lotions have become increasingly popular as people look for natural ways to ease stress, improve sleep, and relieve muscle aches. But one question often comes up: does magnesium really absorb through the skin, or is it just a wellness trend?

Let’s break down the science, address the myths, and explain why many health professionals recommend transdermal magnesium as part of a holistic routine.

Why Magnesium Absorption Matters

Magnesium is essential for more than 300 functions in the body, from muscle and nerve function to energy production and hormone balance. Yet research shows that many people fall short of daily needs, leading to symptoms such as cramps, poor sleep, fatigue, and anxiety.

Traditionally, magnesium supplements are taken orally in the form of pills or powders. While these can be effective, absorption depends on the digestive system — and not everyone tolerates them well. For example, some forms of oral magnesium can cause bloating or loose stools, which discourages consistent use.

This is where transdermal magnesium comes in.

What the Research Says About Absorption

Transdermal magnesium refers to applying magnesium to the skin, usually in the form of a concentrated spray or “oil.” The idea is that magnesium passes through the skin barrier and enters circulation, bypassing the digestive tract.

The science is evolving, but here is what we know so far:

• A 2017 pilot study published in PLOS One found that daily application of magnesium cream raised blood magnesium levels over a 12-week period.

• Clinical reports and smaller studies suggest that transdermal application can be particularly helpful for local muscle relaxation and recovery.

• Many naturopathic and holistic practitioners, including Dr Carolyn Dean (author of The Magnesium Miracle), recommend topical magnesium as an accessible, gentle way to increase intake without the digestive side effects of pills.

While more large-scale studies are needed, the combination of emerging research and strong anecdotal evidence makes a compelling case.

Common Myths About Transdermal Magnesium

“It doesn’t absorb at all.”
Early scepticism came from the belief that the skin barrier is too strong. But newer studies suggest otherwise, especially with repeated, consistent use.

“It’s the same as bath salts.”
Epsom salt baths do contain magnesium, but the concentration in sprays is much higher and easier to apply daily.

“If you don’t feel tingling, it isn’t working.”
The tingling sensation some people notice is simply due to the concentration of magnesium chloride and individual skin sensitivity. Absorption can occur whether you feel it or not.

Why Choose a Spray?

Sprays and oils are simple, practical, and versatile. They can be applied to specific areas such as tired legs, sore shoulders, or the soles of the feet before bed. This makes them ideal for targeting both whole-body magnesium levels and local muscle discomfort.

At Groundi we recommend making magnesium spray part of your daily self-care routine. Regular use is what makes the biggest difference — whether your goal is better sleep, less stress, or calmer muscles.

The Bottom Line

Does transdermal magnesium really work? The evidence points to yes. While oral supplements remain useful, sprays and oils provide a fast, convenient, and stomach-friendly way to support your body’s magnesium needs. For many people, it is a practical and effective path to calmer days and deeper nights of rest.

👉 [Explore our pure, fast absorbing Magnesium Oil Spray here]