Epsom Salt (Magnesium Sulfate), Time tested mineral compound has hundreds of uses, From health and beauty to household cleaning and organic gardening. Health benefits: Ease stress and improves sleep and concentration, Help muscles and nerves function properly. Improve oxygen use.Beauty benefits: May soften skin an exfoliate. Garden benefits: Helps seeds germinate. Make plants grow bushier. Ease stress and improves sleep and concentration. May soften skin an exfoliate, reduce inflammation to relieve pain and muscle cramps.