Dead Sea Salt Baths for Psoriasis & Eczema: Do They Work?

"If you've spent any time in [eczema and psoriasis communities, you've probably seen someone swear by Dead Sea salt baths. The practice—called balneotherapy—has roots stretching back thousands of years to the mineral-rich shores of the Dead Sea in the Jordan Rift Valley. But anecdotes aren't evidence, and when you're dealing with angry, inflamed skin, you want to know what actually holds up under scrutiny before you climb into the tub.", "Let's walk through what Dead Sea salt is, what the research shows for psoriasis and eczema, how to prepare a soak if you decide to try one, and the situations where it may do more harm than good.", "## What Makes Dead Sea Salt Different from Regular Salt?", "Table salt is almost entirely sodium chloride. Dead Sea salt is a different animal. It contains a high concentration of magnesium chloride (roughly 30–35%), potassium chloride, calcium chloride, and bromide salts, with sodium chloride making up a much smaller fraction than you'd find in ordinary sea salt.", "This mineral profile matters because several of these compounds have documented effects on skin biology. Magnesium, for instance, plays a role in skin barrier function and has shown anti-inflammatory properties in cell studies. Bromide salts have mild antimicrobial activity. The theory behind balneotherapy is that soaking in this mineral cocktail can reduce inflammation, soften plaques, and support the skin barrier—all things people with psoriasis or eczema desperately need.", "## What Does the Research Say?", "### Psoriasis", "The evidence base is strongest here. Multiple controlled trials have examined Dead Sea salt bathing for plaque psoriasis, and the results are generally positive—though the studies tend to be small.", "A frequently cited randomized controlled trial published in the *Journal of the American Academy of Dermatology* compared patients who bathed in Dead Sea salt solution to those who bathed in common salt (sodium chloride) over several weeks. The Dead Sea salt group showed significantly greater improvement in PASI scores—a standardized measure of psoriasis severity—compared to the common salt group. This suggests the benefit isn't just from soaking in warm water; the specific mineral content matters.", "Other studies on climatotherapy at the Dead Sea itself (combining salt bathing, sun exposure, and the unique low-altitude atmosphere) have reported remission rates that can last months. However, it's hard to separate the salt component from the UV exposure in those studies, since UV therapy is itself a well-established psoriasis treatment.", "Bottom line for psoriasis: There's reasonable evidence that Dead Sea salt baths can meaningfully reduce plaque severity, especially as a complement to other treatments. It's not a replacement for medical therapy in moderate-to-severe disease, but it's one of the better-supported home strategies available.", "### Eczema (Atopic Dermatitis)", "The evidence for eczema is thinner and more mixed. A few small studies suggest Dead Sea mineral bathing can improve skin hydration and reduce roughness in atopic dermatitis. One German study found that a 15-minute soak in a 5% Dead Sea salt solution improved skin barrier function compared to tap water alone.", "However, eczema skin behaves differently from psoriatic skin. The barrier is already severely compromised, and the condition is driven more by immune dysregulation (Th2-skewed inflammation) and microbial imbalance than by the rapid keratinocyte turnover seen in psoriasis. Some eczema patients find salt baths soothing; others find that salt on broken or cracked skin causes significant stinging and irritation.", "Bottom line for eczema: Potentially helpful for mild-to-moderate eczema when the skin isn't actively broken or weeping, but the evidence is preliminary. Proceed cautiously, and always follow a soak with a good moisturizer to lock in hydration (more on that in our guide to choosing the right moisturizer).", "## How Dead Sea Salt May Work: The Proposed Mechanisms", "Researchers have proposed several overlapping mechanisms:", "- Magnesium absorption through the skin may downregulate inflammatory mediators. Magnesium has been shown in lab studies to inhibit certain pro-inflammatory cytokines involved in both psoriasis (like TNF-α and IL-17) and eczema (like IL-4).", "- Improved skin hydration. The mineral salts appear to enhance the skin's ability to bind and retain water, which is critical for barrier repair.", "- Antimicrobial effects. The high mineral concentration creates an environment less hospitable to *Staphylococcus aureus*—a bacterium that colonizes eczema skin and drives flares.", "- Keratolytic (plaque-softening) action. For psoriasis specifically, the salts help loosen and remove thick plaques, improving the penetration of topical treatments applied afterward.", "These mechanisms are plausible and supported by lab and small clinical data, but none has been definitively proven as *the* primary driver of benefit. It's likely a combination.", "## How to Prepare a Dead Sea Salt Bath", "If you want to try this at home, here's a practical guide:", "### What You Need", "- Genuine Dead Sea salt. Look for products that list the origin as the Dead Sea (Israel/Jordan) and aren't blended with fragrances, dyes, or essential oils—all of which can irritate sensitive skin. Plain, unprocessed Dead Sea salt is what you want.", "- A bathtub. A full soak is more effective than a foot bath for widespread skin conditions, though foot or hand soaks work for localized patches.", "### Preparation Steps", "1. Concentration: Aim for roughly 1–2 cups (200–400 grams) of Dead Sea salt per standard bathtub of warm water. Clinical studies have typically used concentrations between 2–5%. You don't need to be exact—start at the lower end.", "2. Water temperature: Warm, not hot. Around 95–100°F (35–38°C). Hot water strips natural oils from the skin and can worsen both eczema and psoriasis.", "3. Soak time: 15–20 minutes. Longer isn't better. Prolonged soaking can actually dehydrate the skin.", "4. Frequency: 2–3 times per week is a reasonable starting point. Some studies used daily baths, but that's hard to sustain and may over-dry the skin.", "5. After the bath: This step is critical. Pat dry gently—don't rub—and immediately apply a thick, fragrance-free moisturizer or emollient within 3 minutes while the skin is still slightly damp. This seals in the minerals and hydration. Skipping this step can leave your skin drier than before.", "## Who Should Be Cautious or Avoid Dead Sea Salt Baths", "Dead Sea salt baths are generally low-risk, but they're not for everyone:", "- Open wounds, cracks, or weeping eczema. Salt on broken skin hurts—and it can further irritate already-damaged tissue. Wait until your skin has healed enough that there are no open fissures.", "- Severe or infected eczema. If your skin is hot, swollen, oozing, or showing signs of infection (yellow crusting, spreading redness), see your dermatologist before soaking in anything.", "- Sensitive to any mineral component. Rare, but possible. Do a small patch test first—soak a cloth in the salt solution and hold it against a small area of affected skin for 10 minutes.", "- People on certain topical medications. If you're using prescription topicals like calcineurin inhibitors or topical steroids, check with your prescriber about timing. Some clinicians recommend applying medications *after* the bath for better absorption; others may have different guidance.", "## How Dead Sea Salt Baths Fit into a Broader Skin Strategy", "Salt baths are a tool, not a cure. They work best as one piece of a larger management plan that might include barrier repair, trigger identification, dietary adjustments, and—when needed—medical therapy.", "If you haven't already, consider whether gut health might be playing a role in your skin symptoms. The gut-skin axis is well-documented, and strategies like supporting the gut lining or identifying food triggers through an elimination approach can complement topical strategies. For people with histamine-driven skin flares, addressing the root cause often matters more than any bath or cream.", "And as always: if your condition is worsening, not responding to home care, or significantly affecting your quality of life, talk to a dermatologist. There are effective prescription options—including non-steroidal ones—that can make a real difference, and there's no reason to suffer through a flare when help is available.", "## The Takeaway", "Dead Sea salt baths have more science behind them than most "natural" skin remedies—particularly for psoriasis, where the evidence is reasonably solid. For eczema, the data is more limited but still promising when used carefully. They're affordable, low-risk for most people, and easy to incorporate into a weekly routine. Just remember: warm water, moderate concentration, short soak, and always moisturize immediately after." ]