Natural soy wax candles made from soybeans are renewable; non-toxic: easier on people with breathing problems; burn cooler, cleaner and more evenly; produce 95% less soot; and last 30 to 50% longer than traditional candles. Soy candles are 2 to 3 times more expensive than paraffin and jel candles made from bleached petroleum wastes -- mineral oil. Our twin aromatherapy (optional) soy candle gift set contains: