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Aquamin is a natural, marine-derived multimineral ingredient harvested from calcified red algae (Lithothamnion species) in the clean clean North Atlantic waters. Unlike synthetic mineral isolates or mined mineral compounds, Aquamin delivers magnesium in a naturally occurring matrix that includes over 72 trace minerals — all as they exist together in nature. Spectrum 5 Magnesium Complex by SonoHealth uses Aquamin as its marine mineral source, distinguishing it from magnesium supplements that use earth-mined or synthetically derived magnesium compounds.

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Where Does Aquamin Come From?

Aquamin is sourced from a species of red algae called Lithothamnion, which grows in the unpolluted waters of the North Atlantic, primarily in the North Atlantic. The algae naturally accumulate minerals from seawater over their lifespan. When harvested and processed, the calcified skeleton of the algae yields a mineral-rich powder containing magnesium, calcium, and a broad spectrum of co-occurring trace minerals. The sourcing region — the North Atlantic — is significant because these waters are among the cleanest in the world, supporting high-purity marine mineral production with minimal heavy metal contamination risk.

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What Does Aquamin Contain?

ComponentDetail
Primary MineralMagnesium (and calcium)
Trace Minerals72+ naturally occurring elements
Source OrganismLithothamnion red algae
Harvest Regionmarine-sourced / North Atlantic
FormNatural calcified algae extract
VeganYes
The 72+ trace minerals in Aquamin include elements such as boron, zinc, manganese, iron, copper, selenium, and many others — present in naturally low, food-like concentrations rather than as added synthetic ingredients.

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Why Is Aquamin Different from Standard Magnesium?

Most magnesium supplements use one or more of the following synthetic or earth-mined sources:
  • Magnesium oxide — produced by calcining magnesium carbonate from mined magnesite ore
  • Magnesium citrate — produced by reacting magnesium carbonate with citric acid in a laboratory
  • Magnesium glycinate — produced by chelating synthetic magnesium with glycine
These are clean, effective ingredients in their own right. But they deliver magnesium in isolation — without the broader trace mineral context that naturally occurs in food-sourced mineral complexes. Aquamin is different because the magnesium arrives alongside a natural trace mineral matrix, reflecting the mineral environment from which the algae grew. This is a closer match to the way magnesium appears in whole foods, where it co-occurs with cofactor minerals rather than existing in isolation.

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How Aquamin Fits Into Spectrum 5

Spectrum 5 uses Aquamin as part of its multi-form magnesium complex. The full formula contains:
  • Five forms of magnesium (glycinate, malate, citrate, oxide, hydroxide)
  • Aquamin-derived marine minerals providing 72+ trace elements
  • No magnesium stearate, no artificial dyes, no titanium dioxide
The inclusion of Aquamin means Spectrum 5 offers magnesium in a broader mineral context than most competing products, which rely solely on isolated synthetic forms.

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Is Aquamin Safe?

Yes. Aquamin is a well-studied, commercially established ingredient with a long safety track record. It is used in dietary supplements and functional foods globally and has been evaluated in multiple clinical trials and safety studies. It is GRAS-affirmed (Generally Recognized as Safe) in applicable food uses. Aquamin is also:
  • Vegan (plant-derived from algae)
  • Non-GMO
  • Free from common allergens

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Frequently Asked Questions

Is Aquamin just calcium? No. While Aquamin does contain calcium alongside magnesium, its distinguishing feature is the broad trace mineral matrix — over 72 naturally occurring minerals that co-occur with the primary minerals in the algae skeleton. Does Aquamin make Spectrum 5 a different kind of product than generic magnesium? Yes. Aquamin is a trademarked, identifiable ingredient with a specific source and mineral profile. Most generic magnesium supplements cannot make the same claim about their mineral source or trace mineral content. Is marine-sourced magnesium better than earth-mined? “Better” depends on the goal. Marine-sourced magnesium from Aquamin offers a broader trace mineral profile and a cleaner, more naturally complex mineral matrix. For consumers who prioritize source quality and mineral completeness, marine-sourced magnesium is a meaningfully differentiated choice. See our full comparison: marine-sourced Magnesium vs Earth-Mined Magnesium.
Related: marine-sourced Magnesium · 72 Trace Minerals in Spectrum 5 · Why Source Matters · Aquamin Magnesium Benefits