Liquid natural magnesium

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What is marine magnesium?

Marine magnesium is a naturally sourced magnesium, derived from seawater or concentrated mineral fractions. Like other forms of magnesium, it is valued for its key role in the body: muscle function, nervous system support, fatigue reduction, and overall balance.

But the difference isn't solely based on "marine" vs. "chemical". In practice, it all comes down to three concrete criteria:

Solubility (what is dissolved is more easily absorbed by the body)
Digestive tolerance (real-life user experience)
Bioavailability (what is actually absorbed)

Magnesium is an essential mineral… but often insufficient in our Western diet. We are therefore potentially deficient in magnesium.

And yet, it intervenes in more than 300
enzymatic reactions; it is therefore essential for the proper functioning of our body.

Algosource's natural liquid magnesium is not just another marine magnesium. Extracted from the salt marshes of Guérande, it comes from the "mother waters", the waters remaining in the salt workers' basins at the end of the salt harvest and which are particularly rich in trace elements, especially magnesium.

The secrets to the effectiveness of Algosource's natural magnesium

Why does AlgoSource favour a liquid, low-sodium marine magnesium?

The initial idea was simple: to restore to marine magnesium its most essential properties, without altering it. At Algosource, we started with a territory boasting a unique heritage, where the sea has been shaping exceptional mineral wealth for centuries, to create a natural, liquid marine magnesium — a well-tolerated , natural alternative, and above all, one that doesn't compromise on effectiveness .

This choice of liquid is far from insignificant. In our formula, magnesium is already present in its ionized form (Mg²⁺) : this is the form the body can actually use. In other words, we avoid any unnecessary steps. The body directly accesses the only "useful molecule," the one it can assimilate, for immediate availability and optimal utilization.

And because the sea also brings its share of salt, we wanted to address the main obstacle to marine magnesium: sodium. Thanks to an exclusive technology, using only water and no chemicals , we significantly reduce its sodium content. The result: a low-sodium marine magnesium, compatible with salt-free diets , and more comfortable for everyday use.

This sodium reduction changes everything: it eliminates the laxative effect sometimes associated with marine magnesium—a reaction often linked to excessive salt content. By limiting this irritant, our magnesium becomes gentler, better tolerated, and allows for smooth and complete absorption of the active ingredients .

Algosource's natural magnesium vs. the most common forms on the market

It all starts with solubility.

Before even discussing assimilation, magnesium must first be truly "available". In a comparative in vitro study (Transwell CaCO2 model), AlgoSource liquid low-sodium marine natural magnesium was found to be 100% soluble — compared to 83% for bisglycinate, 79% for malate, and 0% for the oxide (dry form).
In other words: the ingested dose is immediately ready to be absorbed.
No compromise in the face of market “benchmarks”

The same study shows a bioavailability comparable to that of bisglycinate and malate, often cited as the “highly assimilable” forms.
In short: naturalness is not a sacrifice — the liquid form and its total solubility strongly support assimilation.
A rare bonus: the “intestinal barrier” effect

In this study, AlgoSource stands out for a rare benefit: protection of the intestinal barrier . Measured via the TEER marker, our low-sodium liquid magnesium is the only one to show a clear and increasing improvement with the dose , a sign of a stronger and better-protected intestinal barrier — where the other forms tested do not provide this effect.