Dry skin brushing originates back centuries in part of Ayurveda's traditional medicines (which includes meditation and yoga).  It is just as the name implies--brushing your dry skin.  No water, no oil, no lotion.  You use a natural bristle brush and brush in sections towards the heart.

How Does It Work?  Here is an excellent excerpt from Rich Travis from "Thyroid Nation" 

Your skin is an organ of elimination, just like your kidneys, liver and colon. It’s the largest organ of your body and it’s estimated that one-third of your body’s daily impurities are excreted through the skin. Dry skin brushing helps keep the pores clear and the skin active to assist the body in this .........