Magnesium Oil Zechstein
Magnesium Chloride

Original Zechsal magnesium oil spray from the ancient Zechstein Sea in the Netherlands. Purely natural product, 31% saturated magnesium chloride solution, no additives, laboratory tested. 200ml
  • 100% original Zechstein
  • 31% magensium chloride hexahydrate, from the underground Zechstein primordial sea
  • Natural filling without chemical purification
  • Ionic magnesium chloride
  • Transdermal: targeted application via the skin
  • Suitable for application via massage; ideal for use after sports
  • 200ml Zechstein magnesium oil with a spray nozzle
  • Bottle can be closed securely with a screw cap; ideal for travel and on-the-go use
  • Minimum shelf life of 36 months after opening

Delivery : 1–3 business days

Incl. VAT, excl. Shipping

€39.50 / 1l
In stock

Premium Bioactive Ingredients

  • 100% original Zechstein magnesium chloride from the 250 million year-old underground Zechstein primordial sea
  • Natural, ionic magnesium chloride obtained via deep drilling at depths of up to 2,000m; pure, natural product
  • 31% magensium chloride hexahydrate
  • Ultra-pure and natural
  • Natural filling without chemical purification
  • Magnesium choride oil spray for transdermal application

How are we different?

The former area of the Zechstein Sea in the Netherlands is home to the world's purest and highest quality natural source of magnesium chloride. This natural blend of magnesium chloride deposits and other trace elements contributes to the high bioavailability and tolerability of Zechsal magnesium oil.

The Zechstein mine is located above a mineral-rich brine deposit that stretches from Northern England to the Netherlands, across Germany and to Russia. In the sea, which dried up 250 million years ago, the various layers of brine were deposited on top of each other in certain regions. Today, a significant layer of magnesium chloride is located below the Netherlands at a depth of roughly 1,600 to 2,000m, far from any form of environmental pollution. The 31% saturated magnesium oil has been extracted by deep drilling and water extraction methods since 1982.

Zechstein magnesium oil, which is obtained directly from the soil, can be used immediately without chemical purification on account of its exceptional quality—a major advantage over magnesium chloride obtained through salt water evaporation.


Zechsal Magnesium Oil

Zechsal magnesium oil - also known as magnesium oil - is not actually an oil, but a 31% magnesium chloride solution that is absorbed transdermally. The saturated solution consists of magnesium chloride salt and crystal water as well as the natural trace elements of the Zechstein sea. The solution owes its name to its oily consistency, which gradually dissipates as it is absorbed into the skin; any salty residue can also be washed off with water. The spray nozzle is ideal for quick and direct application.

Magnesium Chloride

Magnesium chloride takes fully ionic forms when dissolved in water, making it highly bioavailable. In human cells, approximately 10% of magnesium is in an ionic form, whereas the rest is bound to other tissue structures and enzymes, one of which is the ATP molecule ("fuel molecule"), which is able to produce energy only when magnesium ions are present. Below an intracellular concentration of 10mmol ionic magnesium, there is no basis for the formation of stable and properly folded proteins.

Magnesium ions enter the body in different ways depending on the compound and the type of administration (oral, transdermal, or intravenous). In the case of transdermal application, magnesium ions are applied locally and contact with the gastrointestinal tract is avoided. Transdermal application is also associated with benefits for the skin.

Transdermal Magnesium

As a natural cosmetic, transdermal magnesium offers a reliable and effective method for applying magnesium to the skin. It has a range of beneficial properties, including:

  • No risk of gastrointestinal irritation 
  • Suitability for the elderly
  • No laxative effect on the skin even at high doses
  • Ideal for point massage after sport, also for muscle cramps
  • Suitability for pregnant and breastfeeding women
  • The ability to target specific areas for massage and skin care (muscle cramps, ageing spots, joints, etc.).

It is believed that the perspiratory glands play a key role in the absorption of magnesium through the skin and into the blood. The cells responsible for the reabsorption of magnesium while sweating are particularly important, as they prevent magnesium loss. Increased absorption through palms, soles, armpits, forehead, and the inner side of the elbows is to be expected, because the perspiratory glands in these areas have a particularly high density (120-370 per cm²).



Recommended daily intake: 1 to 2 sprays daily, in the morning or at night. 1 spray corresponds to approximately 1.4ml oil = approximately 144mg elemental magnesium.

Recommended dosage in cases of severe deficiency: 1 spray in the morning and another at night every day for a minimum of 6 weeks. 3 sprays correspond to approximately 4.2ml and 433mg elemental magnesium.


Cosmetic product for external use only. May cause a slight tingling sensation on sensitive skin. Avoid contact with open wounds and the eyes. Keep out of reach of children.


Store in a cool, dry place away from direct sunlight and heat.


Ingredients: Aqua (Water), Magnesium Chloride (31%).

How much elemental magnesium is contained in Zechsal magnesium oil?
1 litre Zechsal magnesium oil contains 310ml magnesium chloride (31%).
This corresponds to a 25.55% pure elemental magnesium content.

In a densely saturated magnesium chloride solution of 1.3kg /1 litre, this corresponds to 79ml x 1,300mg / 1,000ml = 103mg elemental magnesium per 1ml magnesium oil.

In addition to 103mg magnesium (27.5% Nutritional Reference Value (NRV) of the EU), 300mg chloride (37.5% of the NRV of the EU) is contained in 1ml original Zechsal magnesium oil.

Product Details

Origin Zechstein Sea, Veendam, Netherlands
Application Product should be used within 36 months of opening

Laboratory Tests

The purity of our formulas is important to us. This is why we have both our raw ingredients as well as our finished products extensively tested by independent laboratories to confirm purity and active ingredient content. Here, we have provided the results of some of the tests carried out on this product.

Sunday Natural

Our Philosophy

For thousands of years, cultures all over the world have been using medicinal plants and nutritious foods to naturally foster and maintain vitality and good health.

With our products, we try to emulate this ancient wisdom as much as possible.

Consequently, our philosophy is simple: everything we do meets the highest standards of quality and purity; our focus is on organic and natural ingredients.

We follow this philosophy with meticulous care on all levels and down to every last detail.

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