Short answer: Dead Sea skincare draws on the mineral-rich salt of the lowest and saltiest body of water on Earth, which sits at about 440 meters below sea level on the border of Israel, the West Bank, and Jordan. The water is roughly 9 to 10 times saltier than the ocean, and its salt is unusually high in magnesium, calcium, potassium, sodium, and bromide. The best-supported benefit is magnesium: a controlled 2005 dermatology study found that bathing dry skin in a magnesium-rich Dead Sea salt solution improved the skin barrier, raised hydration, and reduced roughness and inflammation.
The lowest, saltiest water on Earth
The Dead Sea lies on the border of Israel, the West Bank, and Jordan at the lowest land point on the planet. As of 2025 its surface sits about 439.78 meters (1,443 feet) below sea level, a level that keeps dropping year over year (Wikipedia). The water is roughly 34 percent salt, close to ten times the salinity of the ocean. That is why nothing swims in it, why the name stuck, and why a person floats so easily on the surface.
That extreme concentration is the whole story of Dead Sea skincare. The salt is dominated by magnesium chloride (about 51 percent), followed by sodium, calcium, and potassium chlorides, and the water carries the highest bromide levels of any water on Earth (Wikipedia). When a product label reads "Dead Sea minerals," it is pointing to this profile, not to any single exotic ingredient. It is also what separates Dead Sea salt from the ordinary sea salt used in many cosmetics: the mineral mix is far richer and far more concentrated. That difference in concentration, rather than any one rare element, is why cosmetic makers have prized the source for generations.
What the science actually supports
The strongest evidence points to magnesium. In a controlled trial published in the International Journal of Dermatology, dermatologists had volunteers with atopic dry skin soak one forearm in a 5 percent magnesium-rich Dead Sea salt solution and the other in ordinary tap water. The salt-treated skin showed better barrier function, higher hydration, and less roughness and inflammation, and the authors credited magnesium's ability to bind water and support the skin's permeability barrier (Proksch et al., 2005, PubMed). That design matters: because each person's other forearm acted as the control, the improvement can be tied to the salt rather than to habits, weather, or wishful thinking. The people most likely to notice a difference are those with dry, easily irritated skin, exactly the group the study followed.
The region has a much longer history as a place of healing. The Dead Sea ranks among the world's first health resorts, and its waters and dry, mineral-heavy climate have been used for skin conditions such as psoriasis for a very long time. Herod the Great built palaces and fortresses along its western shore, Masada among them, as far back as the first century BCE (Wikipedia). It is worth being plain about the limits, though. The well-documented effects are barrier repair, hydration, and calmer, less inflamed skin. Sweeping claims about "detoxification," or benefits pinned to zinc, are marketing language rather than established science. The honest headline is simple: magnesium and the skin barrier.
Bringing the Dead Sea home
You do not need to travel to the shore to use the same minerals. Authentic Dead Sea salts, muds, and mineral creams carry that magnesium-rich profile straight into a daily routine, and the grounded way to think about them is barrier support and hydration rather than miracle promises. One caveat matters: the Dead Sea is shrinking fast, evaporating and receding under industrial mineral extraction and climate change (The Times of Israel), which makes genuine Dead Sea material a finite and increasingly rare resource.
Our Dead Sea collection gathers mineral mud, salts, serums, and moisturizers made with that source material, so you can build a simple, barrier-friendly routine and support Israeli makers at the same time. Start with one product, a mud mask or a mineral moisturizer, and keep your expectations anchored to what the science shows: softer, better-hydrated, calmer skin.
Related
- The benefits of Dead Sea salt
- Benefits of Dead Sea skincare products from Israel
- Why Dead Sea minerals make the best skincare products
Last updated July 2026.
