Bathing in water containing magnesium sulfate, commonly sold as Epsom salt.
What it is, why people use it, the evidence, and what to know before trying it.
Dissolved magnesium sulfate changes the bathwater composition. Claims that meaningful magnesium replacement occurs through intact skin remain unproven; warmth may contribute to comfort independently.
Evidence basis: Early or theoretical research
An Epsom-salt bath is a reported comfort practice. Available evidence does not establish effective magnesium replacement or toxin removal through the skin, and oral-magnesium studies cannot be applied to bathwater.
Confidence: weak
Situations where this practice may need modification or professional guidance.
Hot baths can cause dizziness or overheating, and bath products can irritate skin. Do not swallow bath salts; avoid use on irritated skin and use particular care with reduced sensation or mobility.
Public protocols that include Epsom-salt bath. Open one to see the full context and source.
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