The most complete magnesium supplement you'll find.

Most magnesium supplements give you one form of magnesium. MagTech gives you three - specifically chosen because they're the forms your body and brain can actually use.

What's in it and why it matters

MagTech combines three distinct forms of magnesium, each with a different job:

Magnesium L-Threonate (as MagTein™) is the standout. It's the only form of magnesium that's been shown in research to effectively cross the blood-brain barrier and may help raise magnesium levels in the brain itself. That matters because magnesium plays a central role in synaptic density - the connections between brain cells that underpin memory, learning, and cognitive clarity. Most magnesium supplements don't get near the brain. This one does.

Magnesium Taurate pairs magnesium with taurine, an amino acid with well-established calming properties. The combination is associated with reduced anxiety, better stress resilience, and improved absorption at the cellular level. If you find your mind tends to race or you carry tension in your body, this is the form doing the work there.

Magnesium Glycinate brings glycine into the picture - an amino acid with its own relaxing effect on the nervous system. Glycinate is one of the gentlest, best-tolerated forms of magnesium available, and is particularly associated with improved sleep quality and reduced muscle tension. It doesn't cause the digestive issues that cheaper forms like magnesium oxide can.

Why magnesium in general?

Magnesium is involved in over 300 enzymatic processes in the body, yet deficiency is remarkably common - estimates suggest a significant portion of the population doesn't get enough from diet alone. Stress depletes it faster. So does alcohol. Poor sleep reduces it. And low magnesium feeds back into more stress, worse sleep, and less cognitive resilience. It's one of the most foundational supplements you can take, and the form you choose makes a real difference.

Sleep, stress, and the brain

MagTech is tagged for sleep and for good reason - the glycinate and taurate forms both may help support the kind of nervous system downregulation that allows for deep, restorative sleep. A randomised, double-blind, placebo-controlled trial found that Magnesium L-Threonate supplementation was associated with improved overall cognition, working memory, and sleep quality in healthy adults. Many users report noticeably improved sleep within the first week, particularly if they were previously low in magnesium.

90 capsules | €39.95

One bottle delivers a full month's supply at the recommended dose. Natural Stacks is a US brand with a strong commitment to open-source formulation transparency - they publish their full ingredient sourcing.

Not suitable for children. Consult your doctor if pregnant, nursing, or taking medications.

We've stocked MagTech since the early days of Powerful.ie. It remains one of our most consistently reordered products - and it's one we take ourselves, religiously, every night before bed. That tells its own story.