An Epsom Salt bath is made by taking a couple cups of Epsom Salts (bath grade) and dissolving them in a tub of warm (not too hot) water. Then soak for about 20 minutes to a half hour, no longer. This helps draw out toxins from your skin. Keep in mind that if your diet is poor nothing will help. Diet is always the starting point. Also make sure you are drinking at least 8 to 10 glasses of pure water everyday.
Once a nutritious diet is maintained, then cleansing of the colon and liver can begin. This is whaere you will see big improvements in your skin, energy level, emotional health, etc. But just using an herb as a quick fix while igmoring other aspects of your holistic health will not get you anywhere.