Soy is made from a renewable source and is not made from petroleum. Soy is sustainable and biodegradable so it is better for the environment. Soy wax comes from Soy Beans that are grown in the United States by farmers. Soy candles burn more evenly, produce less soot and burn 30% longer than paraffin candles. Soy wax holds the scent allowing the candle to give off a full aroma every time the candle is lit. Soy is better for the environment, and does not release toxins into the air or into your lungs.