UNIQUE, FAST-ACTING EPSOM SALT LOTION: Epsom-It Soothing Muscle Lotion penetrates the skin to bring the benefits of Magnesium sulfate to sore muscles for instant, drug-free, deep alleviation. Apply generously as needed to soothe away muscle and joint aches and soreness from intense workouts, everyday exercise, backaches, or muscle sprains. CONCENTRATED EPSOM SALT CREAM: Epsom-It Soothing Muscle lotion has a Patented 20% concentrated Epsom Salt (magnesium sulfate) based formula and is fortified with Arnica. It is 30x more concentrated than a traditional Epsom Salt bath. Formerly known as Morton Epsom Lotion with over 1 Million Bottles Sold, Epsom-It has produced over 1 Million bottles of its Original, Concentrated Epsom Salt lotion.