Sea water: hypertonic, isotonic, microfiltered

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Sea water naturally contains most of the known minerals and trace elements. Collected offshore and then cold-microfiltered, it is available pure (hypertonic) or diluted (isotonic), in drinkable ampoules or as sprays.

Discover its composition, the story of René Quinton’s “marine plasma”, the difference between hypertonic and isotonic sea water, and our selection.

Sea water: hypertonic, isotonic, microfiltered | NATURAMedicatrix

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Quinton Isotonic Nasal Spray

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Active ingredients guide

Sea water: a natural concentrate of minerals

Sea water contains an average of 35 grams of mineral salts per litre. Sodium chloride accounts for the largest share, but it also contains magnesium, potassium, calcium and most of the known trace elements, in trace amounts.

Collected offshore, then cold-microfiltered to purify it without heating, sea water is available in drinkable ampoules, often called “marine plasma”, as well as in sprays for the nose, eyes or skin.

Around 35 g/l of salts

The average salinity of the oceans, dominated by sodium chloride.

Dozens of minerals

Magnesium, potassium, calcium and many trace elements in trace amounts.

Cold-microfiltered

A very fine filtration, carried out without heating, to purify the water.

Making the right choice

Hypertonic or isotonic sea water: what is the difference?

The difference lies in the salt concentration, compared with that of the body’s fluids, such as blood plasma:

Hypertonic sea water

This is pure, undiluted sea water at the natural salinity of the ocean (around 3.3% sodium chloride). It has a higher salt concentration than the body’s fluids.

Isotonic sea water

This is sea water diluted with spring water to reach 0.9% sodium chloride: the same concentration as blood plasma.

The same distinction applies to nasal sprays: an isotonic spray has the salinity of the body’s fluids, while a hypertonic spray is more concentrated.

History

René Quinton and “marine plasma”

René Quinton (1866–1925) was a French naturalist and physiologist. Struck by the similarity between the mineral composition of sea water and that of our body’s fluids, he published L’Eau de mer, milieu organique in 1904.

The terms “marine plasma” and “Quinton water” come from his work. Today, the Quinton brand continues this approach with a range of cold-microfiltered sea water in ampoules and sprays. Discover the Quinton range →

What you should know

What an ampoule of sea water contains

An ampoule of sea water mainly provides chloride and sodium, as well as magnesium, potassium, calcium and trace elements in small quantities. The exact amounts are shown on the label of each product.

Chloride contributes to normal digestion by production of hydrochloric acid in the stomach. As hypertonic sea water is rich in salt, caution is needed if you follow a low-salt diet: ask your doctor for advice.

The forms

In what forms is sea water available?

Drinkable ampoules

Hypertonic or isotonic sea water, as food supplements, to be taken according to the directions for use.

Nasal sprays

For nasal hygiene, in isotonic, hypertonic or children’s versions.

Sprays for the eyes and skin

Formulas based on sea water and water, for external use.

In combined formulas

Sea water extract or concentrate, used as a source of minerals, notably marine magnesium.

Our selection

Quinton Hypertonique and Isotonique — 30 ampoules

Quinton Hypertonique: 100% cold-microfiltered sea water, with 3.3% sodium chloride.

Quinton Isotonique: 29% cold-microfiltered sea water and 71% purified water, with 0.9% sodium chloride.

Discover Quinton Isotonique →

Frequently asked questions

Sea water FAQ

What is marine plasma?

Since René Quinton’s work, this has been the name given to sea water collected offshore and cold-microfiltered, available in drinkable ampoules.

What is the difference between hypertonic and isotonic sea water?

Hypertonic sea water is pure sea water (around 3.3% salt). Isotonic sea water is diluted with spring water to reach 0.9% salt, the concentration of blood plasma.

What does “cold-microfiltered” mean?

The sea water is purified by a very fine filtration carried out at low temperature, without heating or heat sterilisation.

How should sea water ampoules be taken?

Follow the directions for use in the leaflet: the number of ampoules per day, any dilution and the time of intake vary from product to product.

Is sea water suitable for a salt-free diet?

Sea water, especially hypertonic sea water, contains sodium. If you are on a low-salt diet or have high blood pressure, ask your doctor for advice before consuming it.

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Call us: +3242900070
Fax: +324 341 29 21
Email us:

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Sea water

Quinton Hypertonic

Quinton Isotonic

Quinton Isotonic Nasal Spray

Quinton Hypertonic Nasal Spray

Quinton Pediatric Nasal Spray

Quinton Eye Spray

Quinton Spray Dermo Action

Marine magnesium FORT

Phyto Sommeil

Griffonia Complex

Oligomax Multimineral

Ergykid Harmony

Ergykid Vita +

Ergykid Immuno +

Sea water: a natural concentrate of minerals

Hypertonic or isotonic sea water: what is the difference?

Hypertonic sea water

Isotonic sea water

René Quinton and “marine plasma”

What an ampoule of sea water contains

In what forms is sea water available?

Drinkable ampoules

Nasal sprays

Sprays for the eyes and skin

In combined formulas

Quinton Hypertonique and Isotonique — 30 ampoules

Sea water FAQ

What is marine plasma?

What is the difference between hypertonic and isotonic sea water?

What does “cold-microfiltered” mean?

How should sea water ampoules be taken?

Is sea water suitable for a salt-free diet?

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