Epsom salt is a mineral compound made up of magnesium sulfate. It is commonly used in baths to help soothe sore muscles and reduce inflammation. When dissolved in warm water, it can be absorbed through the skin, providing potential health benefits. In addition to its use in baths, Epsom salt is also utilized in gardening as a natural fertilizer. The magnesium in Epsom salt can enhance plant growth and improve nutrient absorption. It is often sprinkled around plants or dissolved in water for easy application.