10/22/2025
Evidence-Based Benefits of Epsom Salt Baths
Muscle soreness and recovery: Warm Epsom salt baths may help reduce muscle tension and perceived soreness after exercise or massage. Research on flotation REST therapy—where high concentrations of magnesium sulfate are used—shows improved muscle comfort and reduced fatigue (PubMed).
Skin hydration and inflammation: Magnesium-rich baths can improve skin barrier function, hydration, and help calm irritation. Studies involving mineral salts suggest positive outcomes for skin health (PubMed).
Stress relief and relaxation: Soaking in a warm Epsom salt bath helps promote circulation and calm the nervous system. While evidence on magnesium absorption is mixed, most experts agree the relaxation effect of hydrotherapy itself is highly beneficial (Medical News Today).
Digestive relief (oral use only): Under medical guidance, magnesium sulfate can be used as a short-term laxative to relieve constipation (National Geographic).
Common Myths and Misconceptions
Detoxification or “drawing out toxins” has no proven basis in clinical research (Cleveland Clinic).
Systemic absorption of magnesium through the skin remains uncertain and may vary by individual.
Chronic disease treatment with Epsom salt is not supported by current medical evidence.
For massage therapists, Epsom salt is a safe, low-cost tool that may support relaxation, skin health, and post-treatment comfort. While many traditional claims exceed current evidence, the warm soak, muscle relief, and stress reduction are undeniable. Setting realistic expectations allows therapists...
