Short answer: The Dead Sea is the lowest exposed land on Earth, sitting roughly 430 meters below sea level on the border of Israel, the West Bank, and Jordan. Its water is about 9 to 10 times saltier than the ocean and unusually rich in magnesium, calcium, potassium, sodium, chloride, and bromide. Peer-reviewed research supports real, if modest, benefits for dry and irritation-prone skin (better hydration, a stronger moisture barrier, and less roughness and redness), while popular promises to detoxify, clear acne, or reverse aging are marketing language rather than established science.
The lowest place on Earth, and its unusual chemistry
The Dead Sea is a terminal salt lake, meaning water flows in but never out, so minerals concentrate over time. As of 2025 its surface sits at about 439.78 meters (1,443 feet) below sea level, the lowest land-based elevation on the planet, and it keeps dropping each year (Wikipedia, Dead Sea). The lake is close to 34% dissolved salts, versus roughly 3.5% for the ocean, which makes it nearly ten times saltier than seawater (a measured salinity of about 34.2% in 2011 put it around 9.6 times ocean strength).
The mix is what sets it apart. Ordinary seawater is dominated by sodium chloride (table salt), but Dead Sea water is unusually high in magnesium, its most abundant cation, along with calcium, potassium, and the highest natural bromide levels of any body of water on Earth (Wikipedia, Dead Sea). That magnesium-forward chemistry, not a long list of exotic ingredients, is the real reason the water behaves differently on skin.
What the science actually shows
The strongest evidence involves magnesium-rich Dead Sea salt on dry, eczema-prone skin. In a controlled forearm study, Proksch and colleagues had participants bathe in a 5% magnesium-rich Dead Sea salt solution; compared with tap water, it significantly improved skin barrier function, boosted hydration, and reduced roughness and redness, effects the authors tied to magnesium's ability to bind water and support barrier repair (Proksch et al., International Journal of Dermatology, 2005).
Dead Sea climatotherapy, the combination of filtered sun exposure and mineral bathing, is also a recognized approach for psoriasis, and a Cochrane review found low-quality evidence that salt bathing plus UVB light relieves psoriasis severity more than UVB alone (Wikipedia, Balneotherapy). In plain terms, hydration, barrier support, and calming of irritation for dry and psoriasis-prone skin are reasonable, evidence-backed expectations.
It is worth being clear about what the research does not show. There is no scientific support for minerals detoxifying the skin or body, and the popular idea that they penetrate deeply is contested rather than established. A specific acne cure was not supported in the sources reviewed, and anti-aging, elasticity, and reverse-the-signs-of-aging claims are marketing rather than demonstrated fact. Treat those the way you would any beauty promise: enjoy the product, keep expectations grounded.
A piece of Israeli natural heritage
People have prized this shoreline for a very long time. In the first century BCE, Herod the Great built and rebuilt fortresses and palaces along the Dead Sea's western shore, Masada the most famous, and the region is often described as one of the world's first health resorts (Wikipedia, Dead Sea). (You will also see the water tied to Cleopatra's beauty rituals; that story is a widely repeated tradition, not something confirmed in reputable sources.)
The modern Dead Sea skincare category is a genuine point of Israeli innovation. AHAVA, founded in 1988, built its products on Dead Sea mud and minerals and became the company licensed to commercially extract raw materials from the lake for cosmetics (Wikipedia, Ahava). What began as a natural resource on Israel's edge grew into a globally recognized skincare tradition.
Bringing Dead Sea minerals into your routine
If you want to try the real thing, the useful frame is simple: look for magnesium-rich Dead Sea salt and mud for soaking and cleansing, especially if your skin runs dry or easily irritated, and think of the benefit as hydration and comfort rather than a cure. Our Dead Sea collection gathers mineral mud, salt, and mineral-based body and face care sourced from the region, so you can bring a piece of Israel's most famous natural spa into your own bathroom. Patch-test anything new, give dry or sensitive skin time to adjust, and pair mineral soaks with a good moisturizer to lock in the hydration you gain.
Related
- The benefits of Dead Sea salt
- Why Dead Sea minerals make the best skincare products
- The power of Dead Sea minerals in natural skincare
Last updated July 2026.
